This paper is meant to indicate the different functional tasks covered by the two multifunctional bound morphemes: j9- and in Ezha. The former is found to mark accusative, genitive and dative cases. The latter, on the...This paper is meant to indicate the different functional tasks covered by the two multifunctional bound morphemes: j9- and in Ezha. The former is found to mark accusative, genitive and dative cases. The latter, on the other hand, renders the functions of contrastive focus marking, converb marking, declarative clause marking in the affirmative perfective, and coordination. After a thorough description of their functions, it is attempted to propose as to whether the various roles rendered by the two forms relate to distinctive homophonous morphemes or to a single morpheme. The required data for this study were collected from native speakers primarily through elicitation, and this method was supplemented by recording free narratives.展开更多
Poppy,the main raw material for making and extracting of opium,its extract is also a source of various sedatives,such as morphine,thebaine,codeine,papaverine,and noscapine.The Papaveraceae Papaver genus plant was once...Poppy,the main raw material for making and extracting of opium,its extract is also a source of various sedatives,such as morphine,thebaine,codeine,papaverine,and noscapine.The Papaveraceae Papaver genus plant was once used as a medicine in the history of traditional Chinese medicine.展开更多
Superoxide dismutase (SOD) activity in the leaves of transgenic tobacco plants with betaine aldehyde dehydrogenase (BADH) gene was about 36% higher than that in the control plants (parent plants), activities of per-ox...Superoxide dismutase (SOD) activity in the leaves of transgenic tobacco plants with betaine aldehyde dehydrogenase (BADH) gene was about 36% higher than that in the control plants (parent plants), activities of per-oxidase (POD) and catalase (Cat) increased by about 62% and 88% respectively. Activities of ascorbate peroxidase (AsSPOD), dehydroascorbate redutase (DAsAR) and glu-tathione reductase (GR) in ascorbate-glutothion pathway located at chloroplasts increased by 67.7%, 47.9% and 38.8% respectively. These results indicated that the H2O2 produced by SOD catalyzing superoxide anion radicals (O2-) could be fully decomposed, and could not derive to form the strongest toxicant radicals · OH. This is the first report to elucidate quantitatively that the activities of two kinds of antioxidative enzymes decomposed radicals and active oxygen were matched. Photoinhibition tolerant capacity of the transgenic tobacco plants was 35% higher than that in the parent plants. Increment of photoinhibition tolerant展开更多
This article first outlines the principle of a cognitive semiotics,and in this framework presents a sign classification taking into consideration the crucial importance of time.It then offers a stratified interpretati...This article first outlines the principle of a cognitive semiotics,and in this framework presents a sign classification taking into consideration the crucial importance of time.It then offers a stratified interpretation of the Lotmanian concept of semiosphere,and continues with a study of the contradiction holding between cultural and socio-functional meanings.This leads to an analysis of ethnic passions and ethnic identity,and finally to a new analysis of homo metonymicus,and the two underlying cognitive structures based on the genitive and the dative schemas,that orient the human imaginary,for better or for worse.展开更多
Tributyl phosphate (TBP) is an important extractant widely used in nuclear industry and hydrometallurgy. The hydration of TBP has been studied by Karl-Fischer titration and IR spectroscopy. Recently, Ruddy found by ...Tributyl phosphate (TBP) is an important extractant widely used in nuclear industry and hydrometallurgy. The hydration of TBP has been studied by Karl-Fischer titration and IR spectroscopy. Recently, Ruddy found by tritium tracer technique that the species, such as TBP·H2O, (TBP·H2O)2, (TBP·H2O)4 and TBP·2H2O were present in the organic phase when TBP was equilibrated with water.展开更多
Silatranes and boratrane belong to a class of tricyclic compounds, which are interesting from both the theoretical and the practical points of view. Their structures are schematically depicted in Fig. 1.
The pyrrolizidine alkaloid monocrotaline-N-oxide is synthesized from monocrotaline (C16H23NO6). Many pyrrolizidine alkaloids are known as antitumor agents, but they induce some lesions. Several crystal structures for ...The pyrrolizidine alkaloid monocrotaline-N-oxide is synthesized from monocrotaline (C16H23NO6). Many pyrrolizidine alkaloids are known as antitumor agents, but they induce some lesions. Several crystal structures for these compounds have been reported. In order to understand the relationship between structure and pharmacologic function of these compounds, the crystal structures of several pyrrolizidine alkaloids have been determined in our laboratory.展开更多
I. INTRODUCTION 1, 2, 2, 6, 6-Pentamethylpiperidinol (PMP), known as photostabilizer, has received much attention from scientists. The synthesis and the structural determination of 1, 2, 2, 6, 6-Pentamethylpiperidinol...I. INTRODUCTION 1, 2, 2, 6, 6-Pentamethylpiperidinol (PMP), known as photostabilizer, has received much attention from scientists. The synthesis and the structural determination of 1, 2, 2, 6, 6-Pentamethylpiperidinol N-oxide (PMPO) have been given an important role in the verification of photo-stabilized mechanism.Therefore, this new compound (PMPO) was synthesized and its structure was determined.展开更多
XPS studies on the structure of three important members of heteronitro-tricyclic compounds have been reported by the present authors before. Experimental results have confirmed the existence of N→B, N→Si and N→Ti d...XPS studies on the structure of three important members of heteronitro-tricyclic compounds have been reported by the present authors before. Experimental results have confirmed the existence of N→B, N→Si and N→Ti dative bonds in these compounds respectively. And the affection of different substituents and carbonyl groups in the molecular ring for these dative bonds has also been investigated and the EHMO (extended Huckel Molecular Orbital) theoretical calculation for silatrane展开更多
The X-ray photoelectron spectroscopy (XPS) study of the structure of 1-vinylsilatrane has been reported by the present authors before which confirmed the existence of the dative bond between the nitrogen and the silic...The X-ray photoelectron spectroscopy (XPS) study of the structure of 1-vinylsilatrane has been reported by the present authors before which confirmed the existence of the dative bond between the nitrogen and the silicon atoms and in another paper the influence of the different substituents on the strength of the dative bond展开更多
In general, in a coordinate complex the dative bond exits between the atoms of the donor and the acceptor. Mulliken theoretically pointed out that the dative bond in a charge transfer complex could be described as inv...In general, in a coordinate complex the dative bond exits between the atoms of the donor and the acceptor. Mulliken theoretically pointed out that the dative bond in a charge transfer complex could be described as involving an electron donation from the highest filled or-展开更多
The study of X-ray photoelectron spectroscopy (XPS) and EHMO (extended H(?)ckel molecular orbital) theoretical calculation on the structure of boratranes and silatranes which are two important members of heteronitro-t...The study of X-ray photoelectron spectroscopy (XPS) and EHMO (extended H(?)ckel molecular orbital) theoretical calculation on the structure of boratranes and silatranes which are two important members of heteronitro-tricyclic compounds have been reported by the authors. Experimental and the calculated results can all confirm the existence of the dative bond in these compounds.展开更多
文摘This paper is meant to indicate the different functional tasks covered by the two multifunctional bound morphemes: j9- and in Ezha. The former is found to mark accusative, genitive and dative cases. The latter, on the other hand, renders the functions of contrastive focus marking, converb marking, declarative clause marking in the affirmative perfective, and coordination. After a thorough description of their functions, it is attempted to propose as to whether the various roles rendered by the two forms relate to distinctive homophonous morphemes or to a single morpheme. The required data for this study were collected from native speakers primarily through elicitation, and this method was supplemented by recording free narratives.
文摘Poppy,the main raw material for making and extracting of opium,its extract is also a source of various sedatives,such as morphine,thebaine,codeine,papaverine,and noscapine.The Papaveraceae Papaver genus plant was once used as a medicine in the history of traditional Chinese medicine.
基金the Stale Key BasicResearch Developmental Program of China (Grant No. (11999011700) and the Natural Science Foundation of Shandong (Gram No. Y9X02037).
文摘Superoxide dismutase (SOD) activity in the leaves of transgenic tobacco plants with betaine aldehyde dehydrogenase (BADH) gene was about 36% higher than that in the control plants (parent plants), activities of per-oxidase (POD) and catalase (Cat) increased by about 62% and 88% respectively. Activities of ascorbate peroxidase (AsSPOD), dehydroascorbate redutase (DAsAR) and glu-tathione reductase (GR) in ascorbate-glutothion pathway located at chloroplasts increased by 67.7%, 47.9% and 38.8% respectively. These results indicated that the H2O2 produced by SOD catalyzing superoxide anion radicals (O2-) could be fully decomposed, and could not derive to form the strongest toxicant radicals · OH. This is the first report to elucidate quantitatively that the activities of two kinds of antioxidative enzymes decomposed radicals and active oxygen were matched. Photoinhibition tolerant capacity of the transgenic tobacco plants was 35% higher than that in the parent plants. Increment of photoinhibition tolerant
文摘This article first outlines the principle of a cognitive semiotics,and in this framework presents a sign classification taking into consideration the crucial importance of time.It then offers a stratified interpretation of the Lotmanian concept of semiosphere,and continues with a study of the contradiction holding between cultural and socio-functional meanings.This leads to an analysis of ethnic passions and ethnic identity,and finally to a new analysis of homo metonymicus,and the two underlying cognitive structures based on the genitive and the dative schemas,that orient the human imaginary,for better or for worse.
文摘Tributyl phosphate (TBP) is an important extractant widely used in nuclear industry and hydrometallurgy. The hydration of TBP has been studied by Karl-Fischer titration and IR spectroscopy. Recently, Ruddy found by tritium tracer technique that the species, such as TBP·H2O, (TBP·H2O)2, (TBP·H2O)4 and TBP·2H2O were present in the organic phase when TBP was equilibrated with water.
文摘Silatranes and boratrane belong to a class of tricyclic compounds, which are interesting from both the theoretical and the practical points of view. Their structures are schematically depicted in Fig. 1.
文摘The pyrrolizidine alkaloid monocrotaline-N-oxide is synthesized from monocrotaline (C16H23NO6). Many pyrrolizidine alkaloids are known as antitumor agents, but they induce some lesions. Several crystal structures for these compounds have been reported. In order to understand the relationship between structure and pharmacologic function of these compounds, the crystal structures of several pyrrolizidine alkaloids have been determined in our laboratory.
文摘I. INTRODUCTION 1, 2, 2, 6, 6-Pentamethylpiperidinol (PMP), known as photostabilizer, has received much attention from scientists. The synthesis and the structural determination of 1, 2, 2, 6, 6-Pentamethylpiperidinol N-oxide (PMPO) have been given an important role in the verification of photo-stabilized mechanism.Therefore, this new compound (PMPO) was synthesized and its structure was determined.
文摘XPS studies on the structure of three important members of heteronitro-tricyclic compounds have been reported by the present authors before. Experimental results have confirmed the existence of N→B, N→Si and N→Ti dative bonds in these compounds respectively. And the affection of different substituents and carbonyl groups in the molecular ring for these dative bonds has also been investigated and the EHMO (extended Huckel Molecular Orbital) theoretical calculation for silatrane
文摘The X-ray photoelectron spectroscopy (XPS) study of the structure of 1-vinylsilatrane has been reported by the present authors before which confirmed the existence of the dative bond between the nitrogen and the silicon atoms and in another paper the influence of the different substituents on the strength of the dative bond
文摘In general, in a coordinate complex the dative bond exits between the atoms of the donor and the acceptor. Mulliken theoretically pointed out that the dative bond in a charge transfer complex could be described as involving an electron donation from the highest filled or-
文摘The study of X-ray photoelectron spectroscopy (XPS) and EHMO (extended H(?)ckel molecular orbital) theoretical calculation on the structure of boratranes and silatranes which are two important members of heteronitro-tricyclic compounds have been reported by the authors. Experimental and the calculated results can all confirm the existence of the dative bond in these compounds.