岭南东江流域晚更新世哺乳动物化石的新发现

IEECAS SKLLQG

西安地区人工林土壤干层与水分恢复研究

IEECAS SKLLQG

~(146)Tb的能级结构研究

利用能量为161—175MeV的~(32)S束流,通过反应~(118)Sn(~(32)S,1p3n)~(146)Tb研究了双奇核~(146)Tb的高自旋态能级结构。实验进行了γ射线的激发函数、γ射线的各向异性度、X-γ和γ-γ-t符合测量。基于这些测量结果,建立了激发能达8390kev的~(146)Tb核的能级纲图,其中包括新发现的41条γ射线和新建立的27个能级,并指定了~(146)Tb新发现能级的自旋值。用一个h_(11/2)价质子和一个h_(11/2)~(-1)价中子空穴耦合、πh_(11/2)υh_(11/2)~(-1)与~(146)Gd核实激发态的耦合对~(146)Tb的能级结构进行了定性地讨论。

Properties of the beta-delayed proton decay of Ho-146

The proton-rich isotope Ho-148 was produced via the fusion-evaporation reaction Mo-92 (Ni-58, 3p1n). The beta-delayed proton decay of Ho-146 was studied by proton-gamma coincidence measurements using a He-jet tape transport system. The gamma-transitions in Tb-145 following the proton emissions were observed, and the beta-delayed proton branching ratios to the final states in the grand-daughter nucleus Tb-145 were determined. According to the relative branching ratios, the ground-state spin of Ho-146 has been proposed and the possible configuration discussed.

Anti-inflammatory effects of DX-890, a human neutrophil elastase inhibitor

Background
Neutrophil elastase (NE)-mediated inflammation contributes to lung damage in cystic fibrosis (CF). We investigated if DX-890, a small-protein NE inhibitor, could reduce neutrophil trans-epithelial migration and reduce activity released from neutrophils and NE-induced cytokine expression in airway epithelial cells.

Methods
Activated blood neutrophils (CF and healthy) treated ± DX-890 were assayed for NE activity. Transmigration of calcein-labeled neutrophils was studied using a 16HBE14o- epithelial monolayer. IL-8 release from primary nasal epithelial monolayers (CF and healthy) was measured after treatment ± DX-890 and NE or CF sputum.

Results
DX-890 reduced NE activity from neutrophils (CF and healthy) and reduced neutrophil transmigration. DX-890 pre-treatment reduced IL-8 release from epithelial cells of healthy or CF subjects after stimulation with NE and CF sputum sol. All improvements with DX-890 were statistically significant (p < 0.05).

Conclusions
DX-890 reduces NE-mediated transmigration and inflammation. NE inhibition could be useful in managing neutrophilic airway inflammation in CF.

Optical and infrared photometry of the Type IInSN1998S: days 11-146

We present contemporaneous optical and infrared (IR) photometric observations of the Type IIn SN 1998S covering the period between 11 and 146 d after discovery. The IR data constitute the first ever IR light curves of a Type IIn supernova. We use blackbody and spline fits to the photometry to examine the luminosity evolution. During the first 2-3 months, the luminosity is dominated by the release of shock-deposited energy in the ejecta. After similar to 100 d the luminosity is powered mostly by the deposition of radioactive decay energy from 0.15 +/-0.05 M-. of Ni-56 which was produced in the explosion. We also report the discovery of an astonishingly high IR excess, K-L'=2.5, that was present at day 130. We interpret this as being due to thermal emission from dust grains in the vicinity of the supernova. We argue that to produce such a high IR luminosity so soon after the explosion, the dust must be pre-existing and so is located in the circumstellar medium of the progenitor. The dust could be heated either by the UV/optical flash (IR echo) or by the X-rays from the interaction of the ejecta with the circumstellar material.

Français 146

Contient : 1° Complainte d'amour ; 2° Le Roman de Fauvel, par « FRANÇOIS DE RUES » et « CHAILLOU DE PESTAIN », interpolé de chansons notées, motets, ballades, rondeaux, etc ; 3° « Plusieurs Diz de mestre GEOFFROI DE PARIS », à savoir ; 1 « Premier avisemens pour le roy Loys » ; 2 « Du Roy Phellippe que ore regne » ; 3 « Des Alliez, en latin » ; 4 Un Songe ; 5 « Des Alliez, en françois » ; 6 « De la Comete et de l'eclipse, et de la lune et du soulail » ; 7 « La Desputaison de l'eglise de Romme et de l'eglise de France pour le siege du pape » ; 4° Trente trois Ballades, rondeaux, etc., de « JEHANNOT DE L'ESCUREL » ; 5° Chronique rimée de 1300 à 1316

Français 146

Contient : 1° Complainte d'amour ; 2° Le Roman de Fauvel, par « FRANÇOIS DE RUES » et « CHAILLOU DE PESTAIN », interpolé de chansons notées, motets, ballades, rondeaux, etc ; 3° « Plusieurs Diz de mestre GEOFFROI DE PARIS », à savoir ; 1 « Premier avisemens pour le roy Loys » ; 2 « Du Roy Phellippe que ore regne » ; 3 « Des Alliez, en latin » ; 4 Un Songe ; 5 « Des Alliez, en françois » ; 6 « De la Comete et de l'eclipse, et de la lune et du soulail » ; 7 « La Desputaison de l'eglise de Romme et de l'eglise de France pour le siege du pape » ; 4° Trente trois Ballades, rondeaux, etc., de « JEHANNOT DE L'ESCUREL » ; 5° Chronique rimée de 1300 à 1316

Resolución No. 146: Por medio de la cual se decide un recurso de reposición

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