Dear Editor,The problem of age estimation in amphibians and reptiles with annual fluctuations of growth pattern has been considered to be mostly solved since the skeletochronological method was introduced(Kleinenberg ...Dear Editor,The problem of age estimation in amphibians and reptiles with annual fluctuations of growth pattern has been considered to be mostly solved since the skeletochronological method was introduced(Kleinenberg and Smirina,1969).This method is based on counting the number of lines of arrested growth(LAGs)—cyclical growth marks that are usually formed annually and characterized by different optical aspects within the tubular bones.展开更多
One of the impacts of the Fukushima disaster was the shutdown of all nuclear power plants in Japan,reaching zero production in 2015.In response,the country started importing more fossil energy including coal,oil,and n...One of the impacts of the Fukushima disaster was the shutdown of all nuclear power plants in Japan,reaching zero production in 2015.In response,the country started importing more fossil energy including coal,oil,and natural gas to fill the energy gap.However,this led to a significant increase in carbon emissions,hindering the efforts to reduce its carbon footprint.In the current situation,Japan is actively working to balance its energy requirements with environmental considerations,including the utilization of hydrogen fuel.Therefore,this paper aims to explore the feasibility and implications of using hydrogen power plants as a means to reduce emissions,and this analysis will be conducted using the energy modeling of the MARKAL-TIMES Japan framework.The hydrogen scenario(HS)is assumed with the extensive integration of hydrogen into the power generation sector,supported by a hydrogen import scheme.Additionally,this scenario will be compared with the Business as Usual(BAU)scenario.The results showed that the generation capacities of the BAU and HS scenarios have significantly different primary energy supplies.The BAU scenario is highly dependent on fossil fuels,while the HS scenario integrates hydrogen contribution along with an increase in renewable energy,reaching a peak contribution of 2,160 PJ in 2050.In the HS scenario,the target of reducing CO_(2) emissions by 80%is achieved through significant hydrogen penetration.By 2050,the total CO_(2) emissions are estimated to be 939 million tons for the BAU scenario and 261 million tons for the Hydrogen scenario.In addition,the contribution of hydrogen to electricity generation is expected to be 153 TWh,smaller than PV and wind power.展开更多
Do you know anything about Chinese knots?I will tell you something about them.In China people usually do(1)them with red silk,cloth and other materials.They look very beautiful in the shape of diamond.In China,these k...Do you know anything about Chinese knots?I will tell you something about them.In China people usually do(1)them with red silk,cloth and other materials.They look very beautiful in the shape of diamond.In China,these knots stand for friendship,love and good luck.展开更多
The characteristics of authority and standard in Legal English decide the significance of the translation about legal English texts. This thesis presents the stylistic features of legal English. It is hoped that trans...The characteristics of authority and standard in Legal English decide the significance of the translation about legal English texts. This thesis presents the stylistic features of legal English. It is hoped that translators would be able to understand legal English accurately.展开更多
Objective The present study aimed to investigate the association of red meat usual intake with metabolic syndrome(Met S),and explore the contribution of red meat usual intake to serum ferritin.Methods Based on the dat...Objective The present study aimed to investigate the association of red meat usual intake with metabolic syndrome(Met S),and explore the contribution of red meat usual intake to serum ferritin.Methods Based on the data from the longitudinal China Health and Nutrition Survey(CHNS),2,797 healthy adults aged 18–75 years without hypertension,diabetes,and Met S were selected in 2009 as subjects and follow-up studies were carried out till 2015.We used the National Cancer Institute(NCI)method to estimate the usual intake of foods.Multivariable logistic regressions were performed to evaluate the association between red meat usual intake and the risk of Met S.Quantile regression analysis was used to study the relationship between red meat consumption and serum ferritin levels.Results After adjusting for potential confounders,red meat,and fresh red meat were positively associated with the risk of Met S(RR=1.41,95%CI:1.05–1.90 and RR=1.37,95%CI:1.02–1.85,respectively).These relationships showed increasing trend(P<0.05).The level of serum ferritin increased significantly with the number of Met S components(P<0.05).The quantile regression analysis showed that red meat and fresh red meat usual intake had a significant positive association with serum ferritin levels across the entire conditional serum ferritin distribution(P<0.05).Processed red meat did not exhibit a similar association.Conclusion Higher red meat usual intake was associated with an increased risk of Met S and elevated serum ferritin levels.展开更多
A suggestion to define the state of an osczttator by two uave functions is proposed.These two functions can be corribined to completely describe the motion of the oscztlator.In this description,both the energy and the...A suggestion to define the state of an osczttator by two uave functions is proposed.These two functions can be corribined to completely describe the motion of the oscztlator.In this description,both the energy and the phase of the oscillator,simultaneously have defznzte values.The usual theory of oscillators is a statistical case of the neu description.展开更多
0 IntroductionLet L = ab be a non-closed smooth arc oriented from a to b, t∈ L, t≠a,b, be the fixed point, andf(t) ∈H. (L) . The usual Hadamard principal value is defined asAbout properties and applications of sing...0 IntroductionLet L = ab be a non-closed smooth arc oriented from a to b, t∈ L, t≠a,b, be the fixed point, andf(t) ∈H. (L) . The usual Hadamard principal value is defined asAbout properties and applications of singular integals of high order were investigated by many authors([1],[2],[3] etc. ) In 1987, the concepts of Hadamard principal value at one-side for singular integralsof high order and the rules of their differentiation are introduced [4]. In this paper we established the rulesof substitution of variable for one-sided Hadamard principal value of singular integrals of high order, andthen, we gave some applications in evaluation of real definite integrals.展开更多
The phosphoenolpyruvate(PEP):carbohydrate phosphotransferase system(PTS)is widely used by bacteria to take up sugars or sugar derivatives;.PTS is usually composed of a histidine protein(HPr),enzyme I(EI),and several e...The phosphoenolpyruvate(PEP):carbohydrate phosphotransferase system(PTS)is widely used by bacteria to take up sugars or sugar derivatives;.PTS is usually composed of a histidine protein(HPr),enzyme I(EI),and several enzyme II(EII)proteins,such as EIIA,EIIB,EIIC,and EIID[1].展开更多
Rare diseases are usually genetic, chronic and incurable disorders with a relatively low incidence. Developments in the diagnosis and management of rare diseases have been relatively slow due to a lack of sufficient p...Rare diseases are usually genetic, chronic and incurable disorders with a relatively low incidence. Developments in the diagnosis and management of rare diseases have been relatively slow due to a lack of sufficient profit motivation and market to attract research by companies. However, due to the attention of government and society as well as economic development, rare diseases have been gradually become an increasing concern. As several dental-craniofacial manifestations are associated with rare diseases,we summarize them in this study to help dentists and oral maxillofacial surgeons provide an early diagnosis and subsequent management for patients with these rare diseases.展开更多
A continuously differntiable solution of hyercomplex elliptic equationDW+AW+BW=0, z=x+iy （1）is called generalized hyperanalytic function, here D is Douglis differentiat operator. Suppose L consists ofcountable soomt...A continuously differntiable solution of hyercomplex elliptic equationDW+AW+BW=0, z=x+iy （1）is called generalized hyperanalytic function, here D is Douglis differentiat operator. Suppose L consists ofcountable soomth Jordan closed curves L<sub>k</sub> k=1, 2, …, the finite domain surrounded by L<sub>k</sub> is denotedG<sub>k</sub><sup>+</sup>, All G<sub>k</sub><sup>+</sup> don’t intersect one another, the positive directions of L<sub>k</sub> are determined as usual, and {L<sub>k</sub>}converges at a finite z<sub>0</sub>. Set L= L∪（Z<sub>0</sub>） , G<sup>+</sup> = G<sub>k</sub><sup>+</sup>, G<sup>-</sup>=C\G<sup>+</sup>.This paper deals with the Riemann problem ; find a piecewise generalized hyperanalytic function w（z）in the whole plane C, satisfying the bounbary condition on展开更多
For D a Lipschitz domain in R<sup>n</sup>, we mean that, for simplicity, D is a domain over the graph of a Lips-chitz function, we use D to denote the boundary of D. We study the general elliptic equation...For D a Lipschitz domain in R<sup>n</sup>, we mean that, for simplicity, D is a domain over the graph of a Lips-chitz function, we use D to denote the boundary of D. We study the general elliptic equationa<sub>ij</sub>D<sub>i</sub>D)ju=0 （1）with Dirichlet boundary datau=g on D,（2）or the Neumann boundary dataa<sub>ij</sub>N<sub>i</sub>D<sub>j</sub>u = g on D, （3）where N = （N<sub>1</sub>,…,N<sub>n</sub>） is the normal direction of ( D, a<sub>ij</sub>’ s are constants satisfying the usual ellipticity con-dition and symmetry condition. Denoting D<sub>T</sub> = D<sub>x</sub>（O,T）, S<sub>T</sub>= Dx（O,T）, we also study the generalparabolic展开更多
To find the predual spaces Pα（R^n） of Qα（R^n） is an important motivation in the study of Q spaces. In this article, wavelet methods are used to solve this problem in a constructive way. First, an wavelet tent at...To find the predual spaces Pα（R^n） of Qα（R^n） is an important motivation in the study of Q spaces. In this article, wavelet methods are used to solve this problem in a constructive way. First, an wavelet tent atomic characterization of Pα（Rn） is given, then its usual atomic characterization and Poisson extension characterization are given. Finally, the continuity on Pα of Calderon-Zygmund operators is studied, and the result can be also applied to give the Morrey characterization of Pα（Rn）.展开更多
Trace amines and their biochemistry: Trace amines represent endogenous monoamines present in very low concentration(usually nM) in the brain in comparison to classical monoamine neurotransmitters.These trace amines ca...Trace amines and their biochemistry: Trace amines represent endogenous monoamines present in very low concentration(usually nM) in the brain in comparison to classical monoamine neurotransmitters.These trace amines can regulate the amount of the classical monoamine neurotransmitters in the synaptic cleft.展开更多
It is shown that evolution characteristics of black hole(BH)parameters in the pure disk-accretion are determined uniquely by BH spin parameter aa_(*).Some unusual evolution characteristics of the parameters of BH accr...It is shown that evolution characteristics of black hole(BH)parameters in the pure disk-accretion are determined uniquely by BH spin parameter aa_(*).Some unusual evolution characteristics of the parameters of BH accretion disks,such as angular velocity,temperature and event horizon radius,are investigated in both thin and thick disk-accretion.And the corresponding turning points,a_(*)^(c),are derived.In addition,two characteristic functions describing the evolution of BH parameters are derived for thin and thick disks,respectively.展开更多
We study the superfluid behavior of a population imbalanced ultracold atomic Fermi gases with a short range attractive interaction in a one-dimensional(1D)optical lattice,using a pairing fluctuation theory.We show tha...We study the superfluid behavior of a population imbalanced ultracold atomic Fermi gases with a short range attractive interaction in a one-dimensional(1D)optical lattice,using a pairing fluctuation theory.We show that,besides widespread pseudogap phenomena and intermediate temperature superfluidity,the superfluid phase is readily destroyed except in a limited region of the parameter space.We find a new mechanism for pair hopping,assisted by the excessive majority fermions,in the presence of continuum-lattice mixing,which leads to an unusual constant Bose-Einstein condensate(BEC)asymptote for Tc that is independent of pairing strength.In result,on the BEC side of unitarity,superfluidity,when it exists,may be strongly enhanced by population imbalance.展开更多
The usual fermion realizations of quantum algebra S1_(q)(2) defining higher-dimensional representations are built in this letter.Using them,we construct a usual fermion system with quantum group symmetry of S1_(q)(2) ...The usual fermion realizations of quantum algebra S1_(q)(2) defining higher-dimensional representations are built in this letter.Using them,we construct a usual fermion system with quantum group symmetry of S1_(q)(2) as a q-deformation of the pairing correlation model in many-body problems.Its energy spectra are exactly solved out from the representation theory of S1_(q)(2).展开更多
An ultra-thin Co2MnSi(0.5 nm)/Mn Ga(1.5 nm) bilayer capped with Pt(5 nm) has been successfully grown by molecular-beam epitaxy.It is a potential candidate of synthetic antiferromagnets due to antiferromagnetic couplin...An ultra-thin Co2MnSi(0.5 nm)/Mn Ga(1.5 nm) bilayer capped with Pt(5 nm) has been successfully grown by molecular-beam epitaxy.It is a potential candidate of synthetic antiferromagnets due to antiferromagnetic coupling between Co2MnSi and MnGa,which is a promising skyrmion-racetrack-memory medium without skyrmion Hall effect after capping with a Pt layer.Unusual humps in transverse Hall resistance loops are clearly observed in the temperature range from 260 to 400 K.This anomaly is generally attributed to topological Hall effect,but other than that,we prove that non-uniform rotation of magnetic moments in the bilayer with magnetic field sweeping is also a possible mechanism contributed to the unusual hump.展开更多
基金supported by the research project of Russian Science Foundation N 22-14-00227.
文摘Dear Editor,The problem of age estimation in amphibians and reptiles with annual fluctuations of growth pattern has been considered to be mostly solved since the skeletochronological method was introduced(Kleinenberg and Smirina,1969).This method is based on counting the number of lines of arrested growth(LAGs)—cyclical growth marks that are usually formed annually and characterized by different optical aspects within the tubular bones.
文摘One of the impacts of the Fukushima disaster was the shutdown of all nuclear power plants in Japan,reaching zero production in 2015.In response,the country started importing more fossil energy including coal,oil,and natural gas to fill the energy gap.However,this led to a significant increase in carbon emissions,hindering the efforts to reduce its carbon footprint.In the current situation,Japan is actively working to balance its energy requirements with environmental considerations,including the utilization of hydrogen fuel.Therefore,this paper aims to explore the feasibility and implications of using hydrogen power plants as a means to reduce emissions,and this analysis will be conducted using the energy modeling of the MARKAL-TIMES Japan framework.The hydrogen scenario(HS)is assumed with the extensive integration of hydrogen into the power generation sector,supported by a hydrogen import scheme.Additionally,this scenario will be compared with the Business as Usual(BAU)scenario.The results showed that the generation capacities of the BAU and HS scenarios have significantly different primary energy supplies.The BAU scenario is highly dependent on fossil fuels,while the HS scenario integrates hydrogen contribution along with an increase in renewable energy,reaching a peak contribution of 2,160 PJ in 2050.In the HS scenario,the target of reducing CO_(2) emissions by 80%is achieved through significant hydrogen penetration.By 2050,the total CO_(2) emissions are estimated to be 939 million tons for the BAU scenario and 261 million tons for the Hydrogen scenario.In addition,the contribution of hydrogen to electricity generation is expected to be 153 TWh,smaller than PV and wind power.
文摘Do you know anything about Chinese knots?I will tell you something about them.In China people usually do(1)them with red silk,cloth and other materials.They look very beautiful in the shape of diamond.In China,these knots stand for friendship,love and good luck.
文摘The characteristics of authority and standard in Legal English decide the significance of the translation about legal English texts. This thesis presents the stylistic features of legal English. It is hoped that translators would be able to understand legal English accurately.
基金funded by the Ministry of Finance of the People’s Republic of China[No.13103110700015005]Carolina Population Center[No.P2CHD050924,T32 HD007168]+1 种基金the University of North Carolina at Chapel Hill,the NIH[No.R01-HD30880,DK056350,R24 HD050924,and R01-HD38700]the NIH Fogarty International Center[No.D43TW009077,D43 TW007709].
文摘Objective The present study aimed to investigate the association of red meat usual intake with metabolic syndrome(Met S),and explore the contribution of red meat usual intake to serum ferritin.Methods Based on the data from the longitudinal China Health and Nutrition Survey(CHNS),2,797 healthy adults aged 18–75 years without hypertension,diabetes,and Met S were selected in 2009 as subjects and follow-up studies were carried out till 2015.We used the National Cancer Institute(NCI)method to estimate the usual intake of foods.Multivariable logistic regressions were performed to evaluate the association between red meat usual intake and the risk of Met S.Quantile regression analysis was used to study the relationship between red meat consumption and serum ferritin levels.Results After adjusting for potential confounders,red meat,and fresh red meat were positively associated with the risk of Met S(RR=1.41,95%CI:1.05–1.90 and RR=1.37,95%CI:1.02–1.85,respectively).These relationships showed increasing trend(P<0.05).The level of serum ferritin increased significantly with the number of Met S components(P<0.05).The quantile regression analysis showed that red meat and fresh red meat usual intake had a significant positive association with serum ferritin levels across the entire conditional serum ferritin distribution(P<0.05).Processed red meat did not exhibit a similar association.Conclusion Higher red meat usual intake was associated with an increased risk of Met S and elevated serum ferritin levels.
文摘A suggestion to define the state of an osczttator by two uave functions is proposed.These two functions can be corribined to completely describe the motion of the oscztlator.In this description,both the energy and the phase of the oscillator,simultaneously have defznzte values.The usual theory of oscillators is a statistical case of the neu description.
文摘0 IntroductionLet L = ab be a non-closed smooth arc oriented from a to b, t∈ L, t≠a,b, be the fixed point, andf(t) ∈H. (L) . The usual Hadamard principal value is defined asAbout properties and applications of singular integals of high order were investigated by many authors([1],[2],[3] etc. ) In 1987, the concepts of Hadamard principal value at one-side for singular integralsof high order and the rules of their differentiation are introduced [4]. In this paper we established the rulesof substitution of variable for one-sided Hadamard principal value of singular integrals of high order, andthen, we gave some applications in evaluation of real definite integrals.
基金supported by grants from the National Natural Science Foundation of China[Grant No.81471917]the Science Foundation for the State Key Laboratory for Infectious Disease Prevention and Control of China[Grant No.2015SKLID509]。
文摘The phosphoenolpyruvate(PEP):carbohydrate phosphotransferase system(PTS)is widely used by bacteria to take up sugars or sugar derivatives;.PTS is usually composed of a histidine protein(HPr),enzyme I(EI),and several enzyme II(EII)proteins,such as EIIA,EIIB,EIIC,and EIID[1].
基金supported by Grants from the NSFC 81621062Key Research and Development Program of Science and Technology Department of Sichuan Province 2018SZ0119+1 种基金Program of science and technology bureau of Chengdu (2018-YF0500258-SN)Sichuan Province Science and Technology Innovation Team Program (2017TD0016)
文摘Rare diseases are usually genetic, chronic and incurable disorders with a relatively low incidence. Developments in the diagnosis and management of rare diseases have been relatively slow due to a lack of sufficient profit motivation and market to attract research by companies. However, due to the attention of government and society as well as economic development, rare diseases have been gradually become an increasing concern. As several dental-craniofacial manifestations are associated with rare diseases,we summarize them in this study to help dentists and oral maxillofacial surgeons provide an early diagnosis and subsequent management for patients with these rare diseases.
文摘A continuously differntiable solution of hyercomplex elliptic equationDW+AW+BW=0, z=x+iy （1）is called generalized hyperanalytic function, here D is Douglis differentiat operator. Suppose L consists ofcountable soomth Jordan closed curves L<sub>k</sub> k=1, 2, …, the finite domain surrounded by L<sub>k</sub> is denotedG<sub>k</sub><sup>+</sup>, All G<sub>k</sub><sup>+</sup> don’t intersect one another, the positive directions of L<sub>k</sub> are determined as usual, and {L<sub>k</sub>}converges at a finite z<sub>0</sub>. Set L= L∪（Z<sub>0</sub>） , G<sup>+</sup> = G<sub>k</sub><sup>+</sup>, G<sup>-</sup>=C\G<sup>+</sup>.This paper deals with the Riemann problem ; find a piecewise generalized hyperanalytic function w（z）in the whole plane C, satisfying the bounbary condition on
文摘For D a Lipschitz domain in R<sup>n</sup>, we mean that, for simplicity, D is a domain over the graph of a Lips-chitz function, we use D to denote the boundary of D. We study the general elliptic equationa<sub>ij</sub>D<sub>i</sub>D)ju=0 （1）with Dirichlet boundary datau=g on D,（2）or the Neumann boundary dataa<sub>ij</sub>N<sub>i</sub>D<sub>j</sub>u = g on D, （3）where N = （N<sub>1</sub>,…,N<sub>n</sub>） is the normal direction of ( D, a<sub>ij</sub>’ s are constants satisfying the usual ellipticity con-dition and symmetry condition. Denoting D<sub>T</sub> = D<sub>x</sub>（O,T）, S<sub>T</sub>= Dx（O,T）, we also study the generalparabolic
基金supported by NNSF of China No.10001027, 90104004,10471002973 project of China G1999075105+1 种基金the innovation funds of Wuhan Universitythe subject construction funds of Mathematic and Statistic School, Wuhan University.
文摘To find the predual spaces Pα（R^n） of Qα（R^n） is an important motivation in the study of Q spaces. In this article, wavelet methods are used to solve this problem in a constructive way. First, an wavelet tent atomic characterization of Pα（Rn） is given, then its usual atomic characterization and Poisson extension characterization are given. Finally, the continuity on Pα of Calderon-Zygmund operators is studied, and the result can be also applied to give the Morrey characterization of Pα（Rn）.
文摘Trace amines and their biochemistry: Trace amines represent endogenous monoamines present in very low concentration(usually nM) in the brain in comparison to classical monoamine neurotransmitters.These trace amines can regulate the amount of the classical monoamine neurotransmitters in the synaptic cleft.
基金Supported by the National Natural Science Foundation of China under Grant No.19773005.
文摘It is shown that evolution characteristics of black hole(BH)parameters in the pure disk-accretion are determined uniquely by BH spin parameter aa_(*).Some unusual evolution characteristics of the parameters of BH accretion disks,such as angular velocity,temperature and event horizon radius,are investigated in both thin and thick disk-accretion.And the corresponding turning points,a_(*)^(c),are derived.In addition,two characteristic functions describing the evolution of BH parameters are derived for thin and thick disks,respectively.
基金National Natural Science Foundation of China(Grant Nos.11774309 and 11674283)Natural Science Foundation of Zhejiang Province of China(Grant No.LZ13A040001)。
文摘We study the superfluid behavior of a population imbalanced ultracold atomic Fermi gases with a short range attractive interaction in a one-dimensional(1D)optical lattice,using a pairing fluctuation theory.We show that,besides widespread pseudogap phenomena and intermediate temperature superfluidity,the superfluid phase is readily destroyed except in a limited region of the parameter space.We find a new mechanism for pair hopping,assisted by the excessive majority fermions,in the presence of continuum-lattice mixing,which leads to an unusual constant Bose-Einstein condensate(BEC)asymptote for Tc that is independent of pairing strength.In result,on the BEC side of unitarity,superfluidity,when it exists,may be strongly enhanced by population imbalance.
基金Supported by the National Natural Science Foundation of China.
文摘The usual fermion realizations of quantum algebra S1_(q)(2) defining higher-dimensional representations are built in this letter.Using them,we construct a usual fermion system with quantum group symmetry of S1_(q)(2) as a q-deformation of the pairing correlation model in many-body problems.Its energy spectra are exactly solved out from the representation theory of S1_(q)(2).
基金Supported by the National Program on Key Basic Research Project under Grant No.2018YFB0407601the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant Nos.XDB44000000 and QYZDY-SSW-JSC015the National Natural Science Foundation of China under Grant Nos.11874349 and 11774339。
文摘An ultra-thin Co2MnSi(0.5 nm)/Mn Ga(1.5 nm) bilayer capped with Pt(5 nm) has been successfully grown by molecular-beam epitaxy.It is a potential candidate of synthetic antiferromagnets due to antiferromagnetic coupling between Co2MnSi and MnGa,which is a promising skyrmion-racetrack-memory medium without skyrmion Hall effect after capping with a Pt layer.Unusual humps in transverse Hall resistance loops are clearly observed in the temperature range from 260 to 400 K.This anomaly is generally attributed to topological Hall effect,but other than that,we prove that non-uniform rotation of magnetic moments in the bilayer with magnetic field sweeping is also a possible mechanism contributed to the unusual hump.
