Photorespiration is a metabolic pathway that involves the cooperative interaction of three organelles chloroplasts, peroxisomes and mitochondria.It is the first step in the analysis of intracellular compartmentation o...Photorespiration is a metabolic pathway that involves the cooperative interaction of three organelles chloroplasts, peroxisomes and mitochondria.It is the first step in the analysis of intracellular compartmentation of the photorespiration metabolism to separate individual organelles, as free as possible from contamination to retain their integrity. Plant peroxisomes and mitochondria are routinely isolated by isopycnic sucrose density gradient centrifugation, but because of high osmotic pressure (1.9 M su-展开更多
I. INTRODUCTION During summer, the lower tropospheric circulation is observed as a belt of high pressure ridge surrounding a low pressure center over the Qingzang plateau. It is found that the northern high pressure b...I. INTRODUCTION During summer, the lower tropospheric circulation is observed as a belt of high pressure ridge surrounding a low pressure center over the Qingzang plateau. It is found that the northern high pressure belt breaks into 3 distinct centers, the so-called Hexi high, Nanjiang high and Central Asia high, and a relatively weak ridge uns along the southern side of the plateau.展开更多
We have studied the transition state of the ring opening interaction of ethylene oxide with amine ion. The geometries of the reactants and product of the reaction C2H4O+NH2-→NH2CH2CH2O- are optimized by a variable me...We have studied the transition state of the ring opening interaction of ethylene oxide with amine ion. The geometries of the reactants and product of the reaction C2H4O+NH2-→NH2CH2CH2O- are optimized by a variable metric method proposed by Murtagh-Sargent, which makes use of the energy gradient technique based on the ab initio MO method with STO-2G basis set. The attacking reagent NH2-, is assumed to approach one of the carbon atoms of ethylene oxide from the side opposite to the oxygen atom （a transmode attack） according to the experimental evidences of organic chemistry. An approximate reaction path is obtained by the method of 'linear internal coordinate path'. Only one展开更多
Ⅰ. INTRODUCTION Soybeans play an important role in national economy because of their high prorein content, therefore the study of seed proteins in soybeans is extremely important. In the previous article, we have pre...Ⅰ. INTRODUCTION Soybeans play an important role in national economy because of their high prorein content, therefore the study of seed proteins in soybeans is extremely important. In the previous article, we have preliminarily compared the seed proteins of wild, semiwild and cultivated soybeans with one other. In this paper we are to study the展开更多
The force-free field describes the configuration of magnetic field in the solar chromosphere and coronal active region, in the Earth’s magnetosphere, and even in the comet plasma. The force-free field has extensive a...The force-free field describes the configuration of magnetic field in the solar chromosphere and coronal active region, in the Earth’s magnetosphere, and even in the comet plasma. The force-free field has extensive applications in the solar physical or space physical environment. Generally, the theoretical models of the force-free fields are constructed first, and then, compared with the observations. In the 50’s,展开更多
Ⅰ. INTRODUCTION It is difficult to maintain the steady state of the stable atmospheric boundary layer, in which the meteorological elements often change. Therefore study of the characteristics of the nocturnal atmosp...Ⅰ. INTRODUCTION It is difficult to maintain the steady state of the stable atmospheric boundary layer, in which the meteorological elements often change. Therefore study of the characteristics of the nocturnal atmospheric boundary layer, especially of the characteristics and development regularity of the radiation inversion process, has important significance for theoretical research of the atmospheric boundary layer and such practical problems as the transport and diffusion of atmospheric pollutants.展开更多
Objective To explore the effects of polymoronuclear cells (PMN) on lung ischemia-reperfusion(I/R) injury in a canine model of pulmonary thromboembolism. Methods Fifteen dogs were divided into three groups; a sham grou...Objective To explore the effects of polymoronuclear cells (PMN) on lung ischemia-reperfusion(I/R) injury in a canine model of pulmonary thromboembolism. Methods Fifteen dogs were divided into three groups; a sham group (n=5), an ischemia group (n=5) and a reperfusion group (n=5). PMN in the whole blood were isolated with density gradient centrifugation. Apoptosis rate of the PMN was measured through flow cytome-展开更多
1.Control systems with distributed parameters can be considered as systems of infinite number of degrees of freedom. Therefore the optimal control problems in such systems can be treated naturally by using functional ...1.Control systems with distributed parameters can be considered as systems of infinite number of degrees of freedom. Therefore the optimal control problems in such systems can be treated naturally by using functional analysis. Let be a real Hilbert space, in展开更多
文摘Photorespiration is a metabolic pathway that involves the cooperative interaction of three organelles chloroplasts, peroxisomes and mitochondria.It is the first step in the analysis of intracellular compartmentation of the photorespiration metabolism to separate individual organelles, as free as possible from contamination to retain their integrity. Plant peroxisomes and mitochondria are routinely isolated by isopycnic sucrose density gradient centrifugation, but because of high osmotic pressure (1.9 M su-
文摘I. INTRODUCTION During summer, the lower tropospheric circulation is observed as a belt of high pressure ridge surrounding a low pressure center over the Qingzang plateau. It is found that the northern high pressure belt breaks into 3 distinct centers, the so-called Hexi high, Nanjiang high and Central Asia high, and a relatively weak ridge uns along the southern side of the plateau.
文摘We have studied the transition state of the ring opening interaction of ethylene oxide with amine ion. The geometries of the reactants and product of the reaction C2H4O+NH2-→NH2CH2CH2O- are optimized by a variable metric method proposed by Murtagh-Sargent, which makes use of the energy gradient technique based on the ab initio MO method with STO-2G basis set. The attacking reagent NH2-, is assumed to approach one of the carbon atoms of ethylene oxide from the side opposite to the oxygen atom （a transmode attack） according to the experimental evidences of organic chemistry. An approximate reaction path is obtained by the method of 'linear internal coordinate path'. Only one
文摘Ⅰ. INTRODUCTION Soybeans play an important role in national economy because of their high prorein content, therefore the study of seed proteins in soybeans is extremely important. In the previous article, we have preliminarily compared the seed proteins of wild, semiwild and cultivated soybeans with one other. In this paper we are to study the
文摘The force-free field describes the configuration of magnetic field in the solar chromosphere and coronal active region, in the Earth’s magnetosphere, and even in the comet plasma. The force-free field has extensive applications in the solar physical or space physical environment. Generally, the theoretical models of the force-free fields are constructed first, and then, compared with the observations. In the 50’s,
文摘Ⅰ. INTRODUCTION It is difficult to maintain the steady state of the stable atmospheric boundary layer, in which the meteorological elements often change. Therefore study of the characteristics of the nocturnal atmospheric boundary layer, especially of the characteristics and development regularity of the radiation inversion process, has important significance for theoretical research of the atmospheric boundary layer and such practical problems as the transport and diffusion of atmospheric pollutants.
文摘Objective To explore the effects of polymoronuclear cells (PMN) on lung ischemia-reperfusion(I/R) injury in a canine model of pulmonary thromboembolism. Methods Fifteen dogs were divided into three groups; a sham group (n=5), an ischemia group (n=5) and a reperfusion group (n=5). PMN in the whole blood were isolated with density gradient centrifugation. Apoptosis rate of the PMN was measured through flow cytome-
文摘1.Control systems with distributed parameters can be considered as systems of infinite number of degrees of freedom. Therefore the optimal control problems in such systems can be treated naturally by using functional analysis. Let be a real Hilbert space, in
