Objective To evaluate short time effects of primary percutaneous coronary intervention (pPCI) and rtPA thrombolysis+PCI (rtPA+PCI) on myocardial viability and ventricular systolic synchrony in AMI patients.Methods Eig...Objective To evaluate short time effects of primary percutaneous coronary intervention (pPCI) and rtPA thrombolysis+PCI (rtPA+PCI) on myocardial viability and ventricular systolic synchrony in AMI patients.Methods Eighty seven patients with first AMI were divided into two groups: group A ( n =42), pPCI group, the patients underwent PCI within 6h after onset of AMI; group B ( n =45), rtPA+PCI group, the patients underwent PCI after thrombolysis within 6h after onset of AMI; Myocardial viability was measured by 99m Tc MIBI SPECT. While, the parameters of cardiac function LVEF and ventricular systolic synchrony LVPS were measured by 99m Tc gated cardiac blood pool image on the first and the fourth weekend. Results (1) The peak CK MB was significantly lower in group A than that in group B( P <0.01 ). (2) Myocardial infarction area (MIA) was decreased and radioactivity counts in MIA was significantly increased in group A and B on the 4th weekend compared with that on the first weekend ( P <0.01 ), but there were no significant difference between group A and group B. (3) LVEF, LVPS were no significant difference between group A and group B.Conclusions (1)pPCI in acute myocardial infartion can limit infarct area, maintain ventricular systolic synchrony and improve ventricular function; (2) but, in those hospitals that there were no any condition for PCI, they should transfer the patients to central hospital for PCI after thrombolysis at the first time. It is beneficial to improve myocardial viability and ventricular systolic synchrony of AMI patients in short time.展开更多
The study examined the popularity, role and economic viability of mini-livestock keeping in Delta State, Nigeria. The specific objectives were to describe the socio-economic characteristics of mini-livestock farmers, ...The study examined the popularity, role and economic viability of mini-livestock keeping in Delta State, Nigeria. The specific objectives were to describe the socio-economic characteristics of mini-livestock farmers, identify the types of animals reared as mini-livestock in the area, ascertain the reasons for keeping mini-livestock by farmers, determine the benefit level of mini- livestock farmers, and identify the problems facing mini-livestock farmers in the study area. Using snowball sampling technique, 674 respondents were sampled with the aid of a structured questionnaire. Various descriptive and inferential statistics were used for data analyses. The results of the study indicated various types of mini-livestock reared in the study area, mainly snail farming or heliciculture （about 90%） and rearing of cane rat （84.27%）; the most important reasons for keeping mini-livestock were income （99.6%）, employment （99.26%） and food （94.96%）. The result further indicated that protein consumption and improved income were the most important benefits to respondents. In spite of these benefits, the respondents faced some constraints, amongst which were lack of technical information （X=4.70）, lacking of enough space for expansion （X=4.58）, inadequate training （X=4.20）, poor extension delivery services （X=4.20） and problems of feed availability （X=3.86）. In spite of these constraints, the production of mini-livestock was found to be profitable in the study area. Based on the t＇mdings, it was recommended, among others, that mini-livestock farmers in the study area should be trained on various aspects of the management of mini-livestock especially by organising workshops for them.展开更多
Viability of bifidobacteria in freeze-dried probiotic products at various temperatures during prolonged storage was assessed. Bifidobacterium longum and Bifidobacterium infantis were freeze-dried. The freeze-dried pre...Viability of bifidobacteria in freeze-dried probiotic products at various temperatures during prolonged storage was assessed. Bifidobacterium longum and Bifidobacterium infantis were freeze-dried. The freeze-dried preparations were stored at -18 , 4 , and 20 ℃. Cell counts were enumerated using BS agar at 37 ℃ for 48 h under anaerobic conditions at 0, 45 and 120 days. Storage at 20 ℃ showed the greatest decline in the viability of bifidobacteria, whereas that at -18 ℃ showed the least decrease.展开更多
Introduction:3D bio-printing technology<sup>[1-3]</sup>（Figure 1）capable of dispensing live cells,soluble factors,and phase-changing hydrogel in a desired pattern,has great potential in creating 3D tissu...Introduction:3D bio-printing technology<sup>[1-3]</sup>（Figure 1）capable of dispensing live cells,soluble factors,and phase-changing hydrogel in a desired pattern,has great potential in creating 3D tissue.However,maintaining the viability of a thick tissue structure during tissue growth and maturation is challenging due to lack of adequate vascular perfusion.In a simple tissue model with展开更多
The viability of philosophy as a genuine field of knowledge has been challenged time and again.Some have challenged“traditional”philosophy,or what was considered“traditional philosophy”at a given time;others have ...The viability of philosophy as a genuine field of knowledge has been challenged time and again.Some have challenged“traditional”philosophy,or what was considered“traditional philosophy”at a given time;others have challenged philosophy in general.But there has been considerable progress in philosophical methodology in the 20th-and 21st-centuries.In this paper I raise challenges to some of the current misconceptions of analytic philosophy,and I propose constructive methodological solutions.展开更多
Four varieties of winter wheat with different return green rates were used to analyze the plasma membrane stability and the factors that affect winter wheat in the frigid region during winter. The removal of reactive ...Four varieties of winter wheat with different return green rates were used to analyze the plasma membrane stability and the factors that affect winter wheat in the frigid region during winter. The removal of reactive oxygen species, the degree of plasma membrane impairment, water composition and content, and the changes in cell viability in the crowns, which contain the growing point, were studied during the period from cold acclimation to the deep freezing. The results showed that electrical conductivity which reflects the degree of plasma membrane damaged under low temperature was significantly correlated with the free water and the total water content. The malondialdehyde （MDA） content, which reflects the degree of membrane peroxidation, was very significantly correlated with superoxide dismutase （SOD）, peroxidase, and ascorbic acid. During the deep freezing period, the SOD activity and glutathione （GSH） content of the winter wheat varieties were relative to their cold resistance. During this period, the MDA stability, SOD, GSH, and the total water and the free water content might be used to identify the cold resistance of winter wheat varieties.展开更多
A special type of asymptotic (exponential) stability, namely componentwise asymptotic (exponential) stability for the continuous-time interval system is investigated. A set-valued map that represents the constraint of...A special type of asymptotic (exponential) stability, namely componentwise asymptotic (exponential) stability for the continuous-time interval system is investigated. A set-valued map that represents the constraint of the state of the system is defined. And, by applying the viability theory of differential equation, sufficient and necessary conditions for the componentwise asymptotical (exponential) stability of this kind of systems are given.展开更多
文摘Objective To evaluate short time effects of primary percutaneous coronary intervention (pPCI) and rtPA thrombolysis+PCI (rtPA+PCI) on myocardial viability and ventricular systolic synchrony in AMI patients.Methods Eighty seven patients with first AMI were divided into two groups: group A ( n =42), pPCI group, the patients underwent PCI within 6h after onset of AMI; group B ( n =45), rtPA+PCI group, the patients underwent PCI after thrombolysis within 6h after onset of AMI; Myocardial viability was measured by 99m Tc MIBI SPECT. While, the parameters of cardiac function LVEF and ventricular systolic synchrony LVPS were measured by 99m Tc gated cardiac blood pool image on the first and the fourth weekend. Results (1) The peak CK MB was significantly lower in group A than that in group B( P <0.01 ). (2) Myocardial infarction area (MIA) was decreased and radioactivity counts in MIA was significantly increased in group A and B on the 4th weekend compared with that on the first weekend ( P <0.01 ), but there were no significant difference between group A and group B. (3) LVEF, LVPS were no significant difference between group A and group B.Conclusions (1)pPCI in acute myocardial infartion can limit infarct area, maintain ventricular systolic synchrony and improve ventricular function; (2) but, in those hospitals that there were no any condition for PCI, they should transfer the patients to central hospital for PCI after thrombolysis at the first time. It is beneficial to improve myocardial viability and ventricular systolic synchrony of AMI patients in short time.
文摘The study examined the popularity, role and economic viability of mini-livestock keeping in Delta State, Nigeria. The specific objectives were to describe the socio-economic characteristics of mini-livestock farmers, identify the types of animals reared as mini-livestock in the area, ascertain the reasons for keeping mini-livestock by farmers, determine the benefit level of mini- livestock farmers, and identify the problems facing mini-livestock farmers in the study area. Using snowball sampling technique, 674 respondents were sampled with the aid of a structured questionnaire. Various descriptive and inferential statistics were used for data analyses. The results of the study indicated various types of mini-livestock reared in the study area, mainly snail farming or heliciculture （about 90%） and rearing of cane rat （84.27%）; the most important reasons for keeping mini-livestock were income （99.6%）, employment （99.26%） and food （94.96%）. The result further indicated that protein consumption and improved income were the most important benefits to respondents. In spite of these benefits, the respondents faced some constraints, amongst which were lack of technical information （X=4.70）, lacking of enough space for expansion （X=4.58）, inadequate training （X=4.20）, poor extension delivery services （X=4.20） and problems of feed availability （X=3.86）. In spite of these constraints, the production of mini-livestock was found to be profitable in the study area. Based on the t＇mdings, it was recommended, among others, that mini-livestock farmers in the study area should be trained on various aspects of the management of mini-livestock especially by organising workshops for them.
文摘Viability of bifidobacteria in freeze-dried probiotic products at various temperatures during prolonged storage was assessed. Bifidobacterium longum and Bifidobacterium infantis were freeze-dried. The freeze-dried preparations were stored at -18 , 4 , and 20 ℃. Cell counts were enumerated using BS agar at 37 ℃ for 48 h under anaerobic conditions at 0, 45 and 120 days. Storage at 20 ℃ showed the greatest decline in the viability of bifidobacteria, whereas that at -18 ℃ showed the least decrease.
基金funded by the American Heart Association Scientist Development Grant SDG12050083National Institutes of Health grant R21 HL102773
文摘Introduction:3D bio-printing technology<sup>[1-3]</sup>（Figure 1）capable of dispensing live cells,soluble factors,and phase-changing hydrogel in a desired pattern,has great potential in creating 3D tissue.However,maintaining the viability of a thick tissue structure during tissue growth and maturation is challenging due to lack of adequate vascular perfusion.In a simple tissue model with
文摘The viability of philosophy as a genuine field of knowledge has been challenged time and again.Some have challenged“traditional”philosophy,or what was considered“traditional philosophy”at a given time;others have challenged philosophy in general.But there has been considerable progress in philosophical methodology in the 20th-and 21st-centuries.In this paper I raise challenges to some of the current misconceptions of analytic philosophy,and I propose constructive methodological solutions.
基金Supported by the Postdoctoral Science Foundation of Heilongjiang Province(2010RCB17)Doctoral Research Startup Foundation of Northeast Agricultural University(LBH-Z10266)+2 种基金New Rural Project of Heilongjiang Provincial Department of EducationProject of Education Department in Heilongjiang Province(12521035)Postgraduate Innovation Project of Education Department in Heilongjiang Province (YJSCX2012-036HLJ)
文摘Four varieties of winter wheat with different return green rates were used to analyze the plasma membrane stability and the factors that affect winter wheat in the frigid region during winter. The removal of reactive oxygen species, the degree of plasma membrane impairment, water composition and content, and the changes in cell viability in the crowns, which contain the growing point, were studied during the period from cold acclimation to the deep freezing. The results showed that electrical conductivity which reflects the degree of plasma membrane damaged under low temperature was significantly correlated with the free water and the total water content. The malondialdehyde （MDA） content, which reflects the degree of membrane peroxidation, was very significantly correlated with superoxide dismutase （SOD）, peroxidase, and ascorbic acid. During the deep freezing period, the SOD activity and glutathione （GSH） content of the winter wheat varieties were relative to their cold resistance. During this period, the MDA stability, SOD, GSH, and the total water and the free water content might be used to identify the cold resistance of winter wheat varieties.
基金This project was supported by the National Natural Science Foundation of China (7017004).
文摘A special type of asymptotic (exponential) stability, namely componentwise asymptotic (exponential) stability for the continuous-time interval system is investigated. A set-valued map that represents the constraint of the state of the system is defined. And, by applying the viability theory of differential equation, sufficient and necessary conditions for the componentwise asymptotical (exponential) stability of this kind of systems are given.
