نتایج جستجو برای: generalized pq

تعداد نتایج: 169142  

Journal: :Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete 1969
H H Stiehl H T Witt

I. The function of plastoquinone PQ in photosynthesis has been measured by absorption changes in the UV at 265 nm. These measurements have been refined by the application of the very sensi­ tive repetitive pulse technique. The reduction and oxidation of plastoquinone in chloroplasts have been measured 1. in short flashes, 2. in long flashes and 3. in double flashes. The results can be described...

Journal: :Clinical laboratory 2015
Li Jiang Yu Zhang Yanhui Sun Li Hu Dongna Gao

BACKGROUND The present study was designed to analyze the dynamic changes in transforming growth factor beta 1 (TGF-β1), interleukin (IL)-10, and tumor necrosis factor alpha (TNF-α) in paraquat (PQ)-intoxicated rats and to evaluate the effects of artesunate on PQ-induced lung injury. METHODS Sixty healthy male Sprague-Dawley (SD) rats were randomly assigned to the control (n = 10), PQ (n = 25)...

Journal: :World journal of emergency medicine 2011
Chang-Bin Li Xin-Hua Li Zhen Wang Cheng-Hua Jiang Ai Peng

BACKGROUND Paraquat (PQ) is a world-wide used herbicide and also a type of common poison for suicide and accidental poisoning. Numerous studies have proved that the concentration of serum PQ plays an important role in prognosis. Spectrophotometry, including common spectrophotometry and second-derivative spectrophotometry, is commonly used for PQ detection in primary hospitals. So far, lack of s...

2017
Yong Zhu Guoying Deng Anqi Ji Jiayi Yao Xiaoxiao Meng Jinfeng Wang Qian Wang Qiugen Wang Ruilan Wang

Acute paraquat (PQ) poisoning is one of the most common forms of pesticide poisoning. Oxidative stress and inflammation are thought to be important mechanisms in PQ-induced acute lung injury (ALI). Selenium (Se) can scavenge intracellular free radicals directly or indirectly. In this study, we investigated whether porous Se@SiO2 nanospheres could alleviate oxidative stress and inflammation in P...

1997
Paul A. Tucker

Bitonic columns are an extension of the consecutive ones property for a matrix. For some optimization problems, if the constraint matrix has the proper bitonic column property then a fast algorithm can nd an optimal solution. This paper shows how the PQ-tree reduction algorithm of Booth and Lueker can be extended into an eecient algorithm to test for a bitonic column property.

Journal: :CoRR 2013
Mojtaba Nouri Bygi Mohammad Ghodsi

This paper considers the problem of computing the weak visibility polygon (WVP) of any query line segment pq (or WVP(pq)) inside a given simple polygon P. We present an algorithm that preprocesses P and creates a data structure from which WVP(pq) is efficiently reported in an output sensitive manner. Our algorithm needs O(n log n) time and O(n) space in the preprocessing phase to report WVP(pq)...

2006
Glenn Nicholson Ashok Parsotam

Routine power quality (PQ) monitoring is limited to a statistical sample of sites that are hopefully representative of the overall PQ performance of the network. It would be helpful if the PQ performance of un-monitored sites could be inferred from the results of a PQ survey from a site having similar physical characteristics. This is only possible if it is known which physical characteristics ...

2016
LiHua Xu TianHong Zhang LiNa Zheng HuiJun Li YingYing Tang XingGuang Luo JianHua Sheng JiJun Wang Andrea Mechelli

Prodromal Questionnaire (PQ) and Structured Interview for Prodromal Syndromes (SIPS) have been used as a two-stage process for identifying subjects at clinical high risk (CHR) of psychosis. The Prodromal Questionnaire-Brief version (PQ-B) contains 21 items derived from the PQ. The present study aimed to examine the psychometric properties of PQ-B in a Chinese help-seeking outpatient sample and ...

2013
Mohamed E. Hassani

The main purpose of the present paper is the heuristic study of the structure, properties and consequences of new class of potential functions results from the concept of pq-Radial functions which are fundamental family of solutions of second order pq-PDE. Keyword: Potential functions, Laplace equation, pq-Radial function, pq-PDE, Legendre polynomials

Journal: :J. Discrete Algorithms 2015
Mojtaba Nouri Bygi Mohammad Ghodsi

This paper considers the problem of computing the weak visibility polygon (WVP) of any query line segment pq (or WVP(pq)) inside a given simple polygon P. We present an algorithm that preprocesses P and creates a data structure from which WVP(pq) is efficiently reported in an output sensitive manner. Our algorithm needs O(n log n) time and O(n) space in the preprocessing phase to report WVP(pq)...

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