AIDS,as one of the fatal diseases,hasthe potential to be the greatest natural pesti-lence in human history.It has now been esti-mated that about 150 patients die of this dis-ease every day.If it is not well controlled...AIDS,as one of the fatal diseases,hasthe potential to be the greatest natural pesti-lence in human history.It has now been esti-mated that about 150 patients die of this dis-ease every day.If it is not well controlled bythe end of this century,thousands展开更多
Inducible repair has been observed in Bacillus su-btillis,Neurospora crassa,Saccharo myces cerevisiaeand Ustilago maydis.Previous results in our labora-tory have suggested a similar respose in D.melanoga-ster when it ...Inducible repair has been observed in Bacillus su-btillis,Neurospora crassa,Saccharo myces cerevisiaeand Ustilago maydis.Previous results in our labora-tory have suggested a similar respose in D.melanoga-ster when it is irradiated with different doses展开更多
In this study, the possibility of preparation and application of highly porous silica aerogel-based bioactive materials are presented. The aerogel was combined with hydroxyapatite and p.tricalcium phosphate as bioacti...In this study, the possibility of preparation and application of highly porous silica aerogel-based bioactive materials are presented. The aerogel was combined with hydroxyapatite and p.tricalcium phosphate as bioactive and osteoinductive agents. The porosity of aerogels was in themesoporous region with a maximum pore diameter of 7,4 and 12.7 nm for the composite materials. The newly developed bioactive materials were characterized by scant electron microscopy. The in vitro biological effect of these modified surfaces was also tested on SAOS-2 osteogenic sarcoma cells by confocal laser scanning microscopy.展开更多
The development of non-platinum(Pt) oxygen reduction reaction(ORR) catalysts with high activity and low cost is of great importance for large-scale commercialization of fuel cells. By means of density functional theor...The development of non-platinum(Pt) oxygen reduction reaction(ORR) catalysts with high activity and low cost is of great importance for large-scale commercialization of fuel cells. By means of density functional theory(DFT) computations, we theoretically identified that two-dimensional(2D) iron-porphyrin(Fe-Pp) sheet, in which the active Fe sites are distributed regularly and separately, is an appealing candidate. The pristine Fe-Pp sheet exhibits considerably high catalytic activity and four-electron selectivity for ORR. Especially, the adsorption of ORR intermediates on Fe-Pp sheet can be significantly weakened by the addition of axial cyanogen(CN) ligand, resulting in pronouncedly enhanced ORR activity. More interestingly, the d band center of CN attached Fe-Pp(Fe-Pp-CN) sheet can be further tuned by applying the external tensile or compressive strain, leading to an enhancement or suppression of ORR catalytic performance. In particular, under a small biaxial tensile strain of 2%, the ORR activity of Fe-Pp-CN sheet is even higher than that of Pt and reaches to the top of activity volcano. Our studies open new ways to design effective non-Pt ORR catalysts for fuel cell technology.展开更多
The Chinese Medical Journal, a general periodi-cal published in English, is one of the leading jour-nals of its kind in the developing countries.The journal is originated from the China Medi-cal Missionary Journal, th...The Chinese Medical Journal, a general periodi-cal published in English, is one of the leading jour-nals of its kind in the developing countries.The journal is originated from the China Medi-cal Missionary Journal, the first issue of which cameoff the press in March 1887. In 1908, its title was ch-anged to the China Medical Journal which amalga-mated in January 1932 with the English section ofthe National Medical Journal of China to form theChinese Medical Journal. The year of 1994 marksthe 107th anniversary of the journal. Through the vi-cissitudes of over a century, it has grown up from aquarterly missionary medical periodical to a regularmonthly, introducing advances in China’s medicalscience and technology. The journal is intended toserve senior clinicians and medical scientists with em-展开更多
Glutamie acid (GLU) and γ-aminobutyric acid (GABA) are the two major amino acids present in the central nervous system. It is generally considered that GABA is a specific inhibitory neurotransmitter and that GLU is a...Glutamie acid (GLU) and γ-aminobutyric acid (GABA) are the two major amino acids present in the central nervous system. It is generally considered that GABA is a specific inhibitory neurotransmitter and that GLU is an excitatory neurotransmit ter. Our previous study indicated that while the level of GABA in brain was in-展开更多
The molecular electrostatic potential (MEP) is an important theoretical index in quantum biochemistry.The successful application of MEP to nuclei acids has aroused great interest of quantum biochemists.Unfortunately, ...The molecular electrostatic potential (MEP) is an important theoretical index in quantum biochemistry.The successful application of MEP to nuclei acids has aroused great interest of quantum biochemists.Unfortunately, due to the complex of calculation, only a few MEPs of the biomacromolecules have been calculated in展开更多
Objective To explore the relationship between the renal dysfunction rate and metabolic syndrome(MS),stratified by age.Methods People took part in physical check-up in a certain tertiary hospital from March 2010to Sept...Objective To explore the relationship between the renal dysfunction rate and metabolic syndrome(MS),stratified by age.Methods People took part in physical check-up in a certain tertiary hospital from March 2010to September 2012,were enrolled in this study.Estimated glomerular filtration rate(e GFR),—a renal dysfunction indicator,was calculated by modified展开更多
On February 12th,Kailuan Group,a leadhagcoal maker ha China,signed a fi-ameworkagreement with the Erdos MunicipalGovernment and Zhunger MunicipalGovernment on jointly building coalchemical project in Erdos,InnerMongolia.
Growth prospectsThe Chinese market for decorativecoatings,excluding non-architecturalproducts such as industrial varnishes,marine paint and other industrially ap-plied coatings,has been growing byaround 10% annually a...Growth prospectsThe Chinese market for decorativecoatings,excluding non-architecturalproducts such as industrial varnishes,marine paint and other industrially ap-plied coatings,has been growing byaround 10% annually and was esti-mated to be worth Euro1.3 billion ayear,with an annual per capita con-展开更多
文摘AIDS,as one of the fatal diseases,hasthe potential to be the greatest natural pesti-lence in human history.It has now been esti-mated that about 150 patients die of this dis-ease every day.If it is not well controlled bythe end of this century,thousands
文摘Inducible repair has been observed in Bacillus su-btillis,Neurospora crassa,Saccharo myces cerevisiaeand Ustilago maydis.Previous results in our labora-tory have suggested a similar respose in D.melanoga-ster when it is irradiated with different doses
文摘In this study, the possibility of preparation and application of highly porous silica aerogel-based bioactive materials are presented. The aerogel was combined with hydroxyapatite and p.tricalcium phosphate as bioactive and osteoinductive agents. The porosity of aerogels was in themesoporous region with a maximum pore diameter of 7,4 and 12.7 nm for the composite materials. The newly developed bioactive materials were characterized by scant electron microscopy. The in vitro biological effect of these modified surfaces was also tested on SAOS-2 osteogenic sarcoma cells by confocal laser scanning microscopy.
基金supported by the National Natural Science Foundation of China (21403115 and 21522305)the Natural Science Foundation of Jiangsu Province (BK20150045)+1 种基金Innovation Project in Jiangsu Province (KYZZ16-0454)The priority academic program development of Jiangsu higher education institutions
文摘The development of non-platinum(Pt) oxygen reduction reaction(ORR) catalysts with high activity and low cost is of great importance for large-scale commercialization of fuel cells. By means of density functional theory(DFT) computations, we theoretically identified that two-dimensional(2D) iron-porphyrin(Fe-Pp) sheet, in which the active Fe sites are distributed regularly and separately, is an appealing candidate. The pristine Fe-Pp sheet exhibits considerably high catalytic activity and four-electron selectivity for ORR. Especially, the adsorption of ORR intermediates on Fe-Pp sheet can be significantly weakened by the addition of axial cyanogen(CN) ligand, resulting in pronouncedly enhanced ORR activity. More interestingly, the d band center of CN attached Fe-Pp(Fe-Pp-CN) sheet can be further tuned by applying the external tensile or compressive strain, leading to an enhancement or suppression of ORR catalytic performance. In particular, under a small biaxial tensile strain of 2%, the ORR activity of Fe-Pp-CN sheet is even higher than that of Pt and reaches to the top of activity volcano. Our studies open new ways to design effective non-Pt ORR catalysts for fuel cell technology.
文摘The Chinese Medical Journal, a general periodi-cal published in English, is one of the leading jour-nals of its kind in the developing countries.The journal is originated from the China Medi-cal Missionary Journal, the first issue of which cameoff the press in March 1887. In 1908, its title was ch-anged to the China Medical Journal which amalga-mated in January 1932 with the English section ofthe National Medical Journal of China to form theChinese Medical Journal. The year of 1994 marksthe 107th anniversary of the journal. Through the vi-cissitudes of over a century, it has grown up from aquarterly missionary medical periodical to a regularmonthly, introducing advances in China’s medicalscience and technology. The journal is intended toserve senior clinicians and medical scientists with em-
文摘Glutamie acid (GLU) and γ-aminobutyric acid (GABA) are the two major amino acids present in the central nervous system. It is generally considered that GABA is a specific inhibitory neurotransmitter and that GLU is an excitatory neurotransmit ter. Our previous study indicated that while the level of GABA in brain was in-
文摘The molecular electrostatic potential (MEP) is an important theoretical index in quantum biochemistry.The successful application of MEP to nuclei acids has aroused great interest of quantum biochemists.Unfortunately, due to the complex of calculation, only a few MEPs of the biomacromolecules have been calculated in
文摘Objective To explore the relationship between the renal dysfunction rate and metabolic syndrome(MS),stratified by age.Methods People took part in physical check-up in a certain tertiary hospital from March 2010to September 2012,were enrolled in this study.Estimated glomerular filtration rate(e GFR),—a renal dysfunction indicator,was calculated by modified
文摘On February 12th,Kailuan Group,a leadhagcoal maker ha China,signed a fi-ameworkagreement with the Erdos MunicipalGovernment and Zhunger MunicipalGovernment on jointly building coalchemical project in Erdos,InnerMongolia.
文摘Growth prospectsThe Chinese market for decorativecoatings,excluding non-architecturalproducts such as industrial varnishes,marine paint and other industrially ap-plied coatings,has been growing byaround 10% annually and was esti-mated to be worth Euro1.3 billion ayear,with an annual per capita con-
