Results 281 to 290 of about 3,463,486 (343)

Radical surgery for upper tract urothelial carcinoma

, 2018
Madaan, S., Reekhaye, A.
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Hydrogen Radicals, Nitrogen Radicals, and the Production of O ₃ in the Upper Troposphere

Science, 1998
The concentrations of the hydrogen radicals OH and HO 2 in the middle and upper troposphere were measured simultaneously with those of NO, O 3 , CO, H 2 O, CH 4 , non-methane hydrocarbons, and with the ultraviolet and visible radiation field ...
Wennberg, P. O., Hanisco, T. F., Jaeglé, L., Jacob, D. J., Hintsa, E. J., Lanzendorf, E. J., Anderson, J. G., Gao, R.-S., Keim, E. R., Donnelly, S. G., Del Negro, L. A., Fahey, D. W., McKeen, S. A., Salawitch, R. J., Webster, C. R., May, R. D., Herman, R. L., Proffitt, M. H., Margitan, J. J., Atlas, E. L., Schauffler, S. M., Flocke, F., McElroy, C. T., Bui, T. P.   +23 more
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ON THE UPPER NIL RADICAL FOR R-MODULES

JP Journal of Algebra, Number Theory and Applications, 2019
Summary: Let \(M\) be a right \(R\)-module. In this paper a generalization of the notion of an \(s\)-system of rings to modules is given. Let \(N\) be a fully invariant submodule of \(M\). Define \(\mathcal{S}(N):=\{m \in M : \text{ every } s\text{-system containing }m\text{ meets }N\}\). It is shown that \(\mathcal{S}(N)\) is equal to the intersection
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Upper radicals of regular classes

Acta Mathematica Hungarica, 1983
In an earlier paper [\textit{W. G. Leavitt}, Stud. Sci. Math. Hung. 16, 15- 23 (1981; Zbl 0481.16002)] the author showed: if a class \({\mathbb{M}}\) of rings has property (E) the following are equivalent: (1) U\({\mathbb{M}}\) is hereditary. (2) Every \(0\neq R\in {\mathbb{M}}_ k\) has some image \(0\neq R/I\in SU{\mathbb{M}}.\) Here \(U{\mathbb{M}}=\{
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Chemistry of HOx radicals in the upper troposphere

Atmospheric Environment, 2001
Aircraft observations from three recent missions (STRAT, SUCCESS, SONEX) are synthesized into a theoretical analysis of the factors controlling the concentrations of HO_x radicals (HO_x=OH+peroxy) and the larger reservoir family HO_y (HO_y=HO_x+2H_2O_2+2CH_3OOH+HNO_2+HNO_4) in the upper troposphere.
Jaeglé, Lyatt, Jacob, Daniel J., Brune, William H., Wennberg, Paul O.   +3 more
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Is there a prostate‐specific antigen upper limit for radical prostatectomy?

BJU International, 2011
Study Type – Prognosis (retrospective cohort) Level of Evidence 2b OBJECTIVE • To assess the feasibility of radical prostatectomy (RP) in a series of patients with prostate cancer with very high prostate‐specific ...
Paulo, Gontero, Martin, Spahn, Bertrand, Tombal, Pia, Bader, Chao-Yu, Hsu, Giansilvio, Marchioro, Bruno, Frea, Kathy, Van Der Eeckt, Burkhard, Kneitz, Detlef, Frohneberg, Alessandro, Tizzani, Hendrik, Van Poppel, Steven, Joniau   +12 more
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Upper lesser curvature skeletonization in radical distal gastrectomy

Journal of Surgical Research, 2015
To investigate the metastatic status of lymph nodes numbers (no.) 1, 3a, and 3b groups in radical distal gastrectomy with upper lesser curvature skeletonization and the risk factors for lesser curvature regional node (LCRN) metastasis.Data on patients who underwent radical distal gastrectomy were retrospectively collected between May 2010 and September
Xin-Zu Chen, Wei-Han Zhang, Xiao-Long Chen, Kai Liu, Kun Yang, Zong-Guang Zhou, Jian-Kun Hu   +6 more
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The upper nilradical and Jacobson radical of semigroup graded rings

Journal of Pure and Applied Algebra, 2015
This paper is motivated by two questions posed by \textit{A. Smoktunowicz} [J. Algebra Appl. 13, No. 4, Article ID 1350121 (2014; Zbl 1298.16009)]. Firstly it is shown that if the upper nilradical of any \(S\)-graded ring is homogeneous, then \(S\) must be cancellative and torsion-free.
Mazurek, Ryszard, Nielsen, Pace P., Ziembowski, Michał   +2 more
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Robot-assisted versus open radical nephroureterectomy for urothelial carcinoma of the upper urinary tract: A retrospective cohort study across ten years.

Surgical oncology, 2021
P. Zeuschner, Sarah Grosse Vollmer, J. Linxweiler, G. Wagenpfeil, S. Wagenpfeil, M. Saar, S. Siemer, M. Stöckle, J. Heinzelbecker   +8 more
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Another characterization of the upper nil radical

Acta Mathematica Hungarica, 2016
In 2015 Halina France-Jackson introduced the notion of a \({\sigma}\)-ring i.e. a ring R with the property that if I and J are ideals of R and for all \({i\in I}\), \({{j\in J}}\), there exist natural numbers m, n such that \({i^{m}j^{n} =0}\), then I = 0 or J = 0. It is shown that \({\sigma}\) is a special class which coincides with the class \({\rho}\
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