Efeito da temperatura no desenvovimento in vitro de pimenteira-do-reino (Piper nigrum L.).

A pimenteira-do-reino (Piper nigrum L.) é uma importante especiaria usada em diversas industriais e é um dos principais produtos agrícolas da pauta de exportações do estado do Pará. A propagação vegetativa, método comercial de produção de mudas de pimenteira-do-reino, se realizada a partir de plantas matrizes infectadas com vírus, promove à degenerescência da planta e prejuízos na produtividade. A temperatura elevada é uma alternativa para a limpeza clonal via micropropagação. O objetivo desse estudo foi verificar a termotolerância dos brotos cultivadas in vitro visando a limpeza clonal. Os explantes (gemas apicais e laterais) foram cultivados in vitro em experimentos preliminares de termotolerância. As temperaturas usadas foram: 32 ºC, 33 ºC, 34 ºC, 36 ºC e 38 ºC, com fotoperíodo de 16 h. luz. Foram avaliados: taxa de oxidação e desenvolvimento de novas folhas. Explantes de pimenteira-do-reino permaneceram incubadas em câmaras do tipo BOD com ajuste de temperatura por 30 dias em cada temperatura. À temperatura de 38 ºC ocorreu elevada taxa de oxidação dos explantes e sem desenvolvimento de brotos enquanto à temperatura de 32 ºC, os explantes diferenciaram in vitro com novas brotações e folhas, sem oxidação. A temperatura dos explantes in vitro influencia diretamente da taxa de sobrevivência e desenvolvimento de pimenteira-do-reino micropropagadas, sendo sugerida a temperatura de 32 ºC para auxiliar a limpeza clonal no processo de micropropagação.

Possible hyperdeformed band in (36)Ar observed in (12)C+(24)Mg elastic scattering

Fifteen strongly oscillating angular distributions of the elastic scattering of (12)C + (24)Mg at energies around the Coulomb barrier (E(c.m). = 10.67-16.00 MeV) are reproduced by adding five Breit-Wigner resonance terms to the l = 2, 4, 6, 7, and 8 elastic S matrix. The nonresonant, background elastic scattering S matrix S(l)(0) is calculated using the Sao Paulo potential. The J = 2, 4, 6, 7, and 8 (h) over bar molecular resonances fit well into a rotational molecular band, together with other higher lying resonances observed in the (16)O + (20)Ne elastic scattering. We propose that the presently observed, largely deformed molecular band corresponds to the hyperdeformed band, which has been found previously in alpha-cluster calculations, as well as in a new Nilsson model calculation. Systematic study of its possible clusterizations predicts the preference of the (12)C + (24)Mg and (16)O + (20)Ne molecular structure, in accordance with our present results.

[The World's Columbian Exposition. Portfolio of views issued by the Department of photography, C.D. Arnold, chief. Chicago and St. Louis, National Chemigraph Company, 1893, 36 phot., don du marquis Davidsard en 1930]

Donateur : Davidsard (18..-18.. ; marquis)

Symphony no. 36 : in C, K. 425 ("Linz")

Soitinnus: ork.

Graduale (MS C.III.36, "Ilmajoen Graduale II")

A very small gradual and hymnary, for the most part copied in the last years of the sixteenth century or in the first quarter of the seventeenth. Assuming that Henricus Jacobi indeed signed his name in the sixteenth century (as Kurvinen reports), some of the manuscript was copied in that century: in lieu of a more accurate indicator the date of the manuscript appears to fall between 1589 and Mathias Benedicti's additions in 1635. The book was kept, perhaps even copied but certainly used, at Ilmajoki from the seventeenth century, and came from there to the University Library.

Archives parlementaires de 1787 à 1860 ; 34-51. Assemblée nationale législative. Série 1 / Tome 36 / impr. par ordre du Sénat et de la Chambre des députés ; sous la dir. de M. J. Mavidal,... et de M. E. Laurent,... ; avec la collab. de MM. E. Tonnier et C. Pionnier

Collection : Les archives de la Révolution française ; 3.1

Fragm. lat. I 36 - Historia Romana XVI c. 14 - 20

Trägerband: "Hauptschießen mit dem Stahlbogen... 1573 u. 1578"; Vorbesitzer: Stadtarchiv Frankfurt am Main

O, C and Sr isotopic data for plankton and benthic foraminifera from DSDP Legs 26, 32, 36, and 71 sediments

A detailed d18O and d13C stratigraphy has been generated from analysis of well-preserved Albian - Early Maastrichtian foraminifera from Deep Sea Drilling Project (DSDP) Sites 511 and 327 (Falkland Plateau; ~58°S - 62°S paleolatitude) in the southern South Atlantic, and Cenomanian and Coniacian - Santonian foraminifera from DSDP Site 258 (Naturaliste Plateau; ~58°S paleolatitude) in the southern Indian Ocean. These results, when combined with previously published Maastrichtian stable isotope data from Ocean Drilling Program (ODP) Site 690 (Weddell Sea, ~65°S paleolatitude), provide new insight into the climatic and oceanographic history of the southern high latitudes during Middle-Late Cretaceous time. The planktonic foraminifer d18O curves reveal a gradual warming of surface waters from the Albian through the Cenomanian followed by extremely warm surface waters from the Turonian through the early Campanian. Long-term cooling of surface waters began in the late early Campanian and continued through the end of the Maastrichtian. The benthic foraminifer d18O record generally parallels changes in the oxygen isotopic curves defined by shallow-dwelling planktonic foraminifera. The vertical oxygen and carbon isotopic gradients were relatively low during the Albian - Cenomanian, high from the Turonian - Early Campanian, and then low during the late Campanian and Maastrichtian.