Results 81 to 90 of about 239,807 (305)
Planta Daninha, 1997 Visando a obtenção de um tratamento para acelerar a germinação de sementes de Desmodium tortuosum (Sw.) DC., foram realizados dois experimentos, nos quais, segmentos unisseminados de lomentos (testemunha) foram submetidos a debulha manual; debulha manual
Cibele C. Martins +3 more
doaj +1 more source
Fabry-Perot observations of comet Kohoutek [PDF]
Observations of H alpha, H20(+), and emission lines from comet Kohoutek were made. Analyses of H alpha line profiles and line intensities indicate that the mean outflow velocity of the hydrogen atoms was 7.8 + or - 0.2 km s(-1) and that the hydrogen atom
Huppler, D. +4 more
core +1 more source
lntracluster rearrangement of protonated nitric acid: Infrared spectroscopic studies of H^+(HNO_3)(H_2O)_n [PDF]
, 1993 Infrared spectra of clusters of protonated nitric acid and water exhibit a marked change with cluster size, indicating that an intracluster reaction occurs with sufficient solvation.
Cao, Yibin +4 more
core
Insect Science, EarlyView.A multilocus sequence typing approach is proposed to explore Halymorpha halys genetic diversity, taking into consideration both insect nuclear markers and markers from the gut symbiont “Candidatus Pantoa carbekii.” Increased information was revealed regarding the number of distinct holobiont haplotypes in native and invasive populations of the pest ...
Matteo Dho +6 more
wiley +1 more source
Pteridines, 1989 Selective oxidations of 2-thiolumazines (10-12) by H20 2 and KMn04 respectively in basic medium led to the corresponding stable pteridin-4-one-2-sulfinates (13-15) and -sulfonates (16-18), which can be isolated in the form of their potassium salts.
Bartke Michael, Pfleiderer Wolfgang
doaj +1 more source
Refining the Vertebrate Mitochondrial 12S rRNA Secondary Structure by Comparative Analysis
Integrative Zoology, EarlyView.This flowchart outlines the comprehensive workflow of the study, integrating diverse bioinformatics tools (e.g., NCBI2GO, SSU‐align, bpRNA) and their sequential interactions. Key steps, such as data preprocessing, structural prediction, and evolutionary analysis, are depicted with their respective outputs (e.g., standardized records, consensus ...
Fengxia Li +6 more
wiley +1 more source
Revista Facultad Nacional de Agronomía Medellín, 2014 Resumen. En Colombia, las pérdidas ocasionadas porMoniliophthora roreri Cif & Par en el cultivo de cacao continúansiendo considerables. El objetivo del presente estudio fue investigarla actividad antagónica de dos aislamientos autóctonos ...
Jorge Enrique Villamil Carvajal +2 more
doaj +1 more source
Ring particle sizes and composition derived from eclipse cooling curves and reflection spectra [PDF]
The probable chemistry of the Saturn rings is reviewed. Reflectance spectra for H20 and NH3 frosts and Saturn's rings are compared, along with temperature dependence of 1.6 microns water frost feature.
Kieffer, H. H.
core +1 more source
Vibrational spectroscopy of NO^+(H_2O)_n: Evidence for the intracluster reaction NO^+(H_2O)_n→H_3O^+(H_2O)_(n-2)(HONO) at n≥4 [PDF]
, 1994 Infrared spectra of mass‐selected clusters NO^+(H_2O)_n for n=1 to 5 were recorded from 2700 to 3800 cm^(−1) by vibrational predissociation spectroscopy.
Cao, Yibin +5 more
core
Pseudoriemannian metrics on spaces of bilinear structures
, 1991 The space of all non degenerate bilinear structures on a manifold $M$ carries a one parameter family of pseudo Riemannian metrics. We determine the geodesic equation, covariant derivative, curvature, and we solve the geodesic equation explicitly.
Gil-Medrano, Olga +2 more
core +4 more sources