Introduction:Type F Clostridium perfringens(C.perfringens)represents a significant pathogen in human gastrointestinal diseases,primarily through its cpe gene encoding C.perfringens enterotoxin(CPE).This investigation ...Introduction:Type F Clostridium perfringens(C.perfringens)represents a significant pathogen in human gastrointestinal diseases,primarily through its cpe gene encoding C.perfringens enterotoxin(CPE).This investigation examined the prevalence,antimicrobial resistance patterns,and genetic characteristics of Type F C.perfringens within the Chinese population.Methods:The study analyzed 2,068 stool samples collected from 11 provincial hospitals in 2024.Antimicrobial susceptibility testing was conducted following Clinical&Laboratory Standards Institute(CLSI)guidelines,while whole-genome sequencing provided detailed genetic profiles.Evolutionary relationships and clonal transmission patterns were investigated through phylogenetic and genetic environment analyses.Results:The prevalence of Type F C.perfringens was 2.38%,with isolates predominantly identified in human clinical samples and higher detection rates in gastroenterology departments.Notably,47.1%of isolates demonstrated high resistance to metronidazole,while all exhibited intermediate resistance to erythromycin.Phylogenetic analysis revealed high similarity among isolates from patients within the same province(single-nucleotide polymorphism(SNPs)<100),and genetic environment analysis indicated potential horizontal gene transfer between animal and human strains.Conclusions:This investigation predominantly identified Type F C.perfringens in human clinical cases,with sporadic detection in pets and food products.These findings highlight the emergence of Type F C.perfringens outbreaks among diarrheal patients,emphasizing the necessity for targeted interventions as virulence factors increase.展开更多
利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响...利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响明显。随着沸石投加量的不断增大,Ni2+去除率不断提高,饱和吸附量逐渐减小。初始pH 7是沸石吸附Ni2+的最适pH。反应温度越高,沸石吸附Ni2+达到平衡的时间越短。沸石对Ni2+的吸附过程符合Langmuir吸附等温式;准一级动力学方程能较好地描述沸石对Ni2+的吸附行为。展开更多
利用粉煤灰合成了Linde type F(K)沸石吸附重金属Cd2+,考察了吸附剂量、初始pH值、反应温度以及反应时间对Cd2+吸附效果的影响,同时进行了吸附动力学数据模拟。结果表明:吸附剂量、初始pH值、反应温度以及反应时间均对Cd2+的去除率影响...利用粉煤灰合成了Linde type F(K)沸石吸附重金属Cd2+,考察了吸附剂量、初始pH值、反应温度以及反应时间对Cd2+吸附效果的影响,同时进行了吸附动力学数据模拟。结果表明:吸附剂量、初始pH值、反应温度以及反应时间均对Cd2+的去除率影响显著。随着吸附剂投加量的不断增大,Cd2+去除效果不断提高,饱和吸附量逐渐减小。初始pH值为7时沸石吸附Cd2+的去除率为100%。反应温度越高,沸石吸附Cd2+达到平衡的时间越短。Linde type F(K)沸石对Cd2+的吸附行为符合准二级反应动力学方程。展开更多
In this article,some coupled coincidence point results for two mappings g:X→X and G:X×X→X satisfying F-contractive type conditions are obtained,and some coupled fixed point results are derived in partially orde...In this article,some coupled coincidence point results for two mappings g:X→X and G:X×X→X satisfying F-contractive type conditions are obtained,and some coupled fixed point results are derived in partially ordered metric spaces.A sufficient condition for uniqueness of coupled point of coincidence are established for F type contraction,and a coupled common fixed point theorem is obtained.Some examples are given to support our results.展开更多
A new maximal function is introduced in the dual spaces of test function spaces on spaces of homogeneous type. Using this maximal function, we get new characterization of atomic H^p spaces.
This paper deals with the boundedness and compactness of the compositionintegral type operators T g, from F (p, q, s) spaces to(little) Bloch-type spaces in the unit ball of C n , where Tg,φf(z) =∫01fφ(tz)Rg(tz)(dt...This paper deals with the boundedness and compactness of the compositionintegral type operators T g, from F (p, q, s) spaces to(little) Bloch-type spaces in the unit ball of C n , where Tg,φf(z) =∫01fφ(tz)Rg(tz)(dt)/t , z ∈ B, g ∈ H(B) and φ∈H(B, B).展开更多
This paper deals with the boundedness and compactness of the weighted composition operators from the F（p, q, s） spaces, including Hardy space, Bergman space, Qp space, BMOA space, Besov space and α-Bloch space, to ...This paper deals with the boundedness and compactness of the weighted composition operators from the F（p, q, s） spaces, including Hardy space, Bergman space, Qp space, BMOA space, Besov space and α-Bloch space, to Bers-type spaces Hv^∞（ or little Bers-type spaces Hv,o∞ ）, where v is normal.展开更多
We propose a projection-type algorithm for generalized mixed variational in- equality problem in Euclidean space Rn. We establish the convergence theorem for the pro- posed algorithm, provided the multi-valued mapping...We propose a projection-type algorithm for generalized mixed variational in- equality problem in Euclidean space Rn. We establish the convergence theorem for the pro- posed algorithm, provided the multi-valued mapping is continuous and f-pseudomonotone with nonempty compact convex values on dom（f）, where f ： Rn --RU{＋∞} is a proper func- tion. The algorithm presented in this paper generalize and improve some known algorithms in literatures. Preliminary computational experience is also reported.展开更多
A tetrad field that is homogeneous and anisotropic which contains two unknown functions A（t） and B（t） of cosmic time is applied to the field equations of f（T）, where T is the torsion scalar, T = T~μ_（νρ）S_...A tetrad field that is homogeneous and anisotropic which contains two unknown functions A（t） and B（t） of cosmic time is applied to the field equations of f（T）, where T is the torsion scalar, T = T~μ_（νρ）S_μ^（νρ）. We calculate the equation of continuity and rewrite it as a product of two brackets, the first is a function of f（T） and the second is a function of the two unknowns A（t） and B（t）. We use two different relations between the two unknown functions A（t） and B（t） in the second bracket to solve it. Both of these relations give constant scalar torsion and solutions coincide with the de Sitter one. So,another assumption related to the contents of the matter fields is postulated. This assumption enables us to drive a solution with a non-constant value of the scalar torsion and a form of f（T） which represents ΛCDM.展开更多
A class of generalized vector variational-type inequality problems （GVVTIP） are studied in FC-spaces, which includes the most of vector equilibrium problems, vector variational inequality problems, generalized vecto...A class of generalized vector variational-type inequality problems （GVVTIP） are studied in FC-spaces, which includes the most of vector equilibrium problems, vector variational inequality problems, generalized vector equilibrium problems and general- ized vector variational inequality problem as special cases. By using F-KKM theorem, some new existence results for GVVTIP axe established in noncompact FC-space. As consequences, some recent known results in literature are obtained under much weaker assumption.展开更多
基金Supported by the National Key Research and Development Program of China(No.2022YFD1800400)the National Natural Science Foundation of China(No.22193064).
文摘Introduction:Type F Clostridium perfringens(C.perfringens)represents a significant pathogen in human gastrointestinal diseases,primarily through its cpe gene encoding C.perfringens enterotoxin(CPE).This investigation examined the prevalence,antimicrobial resistance patterns,and genetic characteristics of Type F C.perfringens within the Chinese population.Methods:The study analyzed 2,068 stool samples collected from 11 provincial hospitals in 2024.Antimicrobial susceptibility testing was conducted following Clinical&Laboratory Standards Institute(CLSI)guidelines,while whole-genome sequencing provided detailed genetic profiles.Evolutionary relationships and clonal transmission patterns were investigated through phylogenetic and genetic environment analyses.Results:The prevalence of Type F C.perfringens was 2.38%,with isolates predominantly identified in human clinical samples and higher detection rates in gastroenterology departments.Notably,47.1%of isolates demonstrated high resistance to metronidazole,while all exhibited intermediate resistance to erythromycin.Phylogenetic analysis revealed high similarity among isolates from patients within the same province(single-nucleotide polymorphism(SNPs)<100),and genetic environment analysis indicated potential horizontal gene transfer between animal and human strains.Conclusions:This investigation predominantly identified Type F C.perfringens in human clinical cases,with sporadic detection in pets and food products.These findings highlight the emergence of Type F C.perfringens outbreaks among diarrheal patients,emphasizing the necessity for targeted interventions as virulence factors increase.
文摘利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响明显。随着沸石投加量的不断增大,Ni2+去除率不断提高,饱和吸附量逐渐减小。初始pH 7是沸石吸附Ni2+的最适pH。反应温度越高,沸石吸附Ni2+达到平衡的时间越短。沸石对Ni2+的吸附过程符合Langmuir吸附等温式;准一级动力学方程能较好地描述沸石对Ni2+的吸附行为。
文摘利用粉煤灰合成了Linde type F(K)沸石吸附重金属Cd2+,考察了吸附剂量、初始pH值、反应温度以及反应时间对Cd2+吸附效果的影响,同时进行了吸附动力学数据模拟。结果表明:吸附剂量、初始pH值、反应温度以及反应时间均对Cd2+的去除率影响显著。随着吸附剂投加量的不断增大,Cd2+去除效果不断提高,饱和吸附量逐渐减小。初始pH值为7时沸石吸附Cd2+的去除率为100%。反应温度越高,沸石吸附Cd2+达到平衡的时间越短。Linde type F(K)沸石对Cd2+的吸附行为符合准二级反应动力学方程。
基金Supported by the National Natural Science Foundation of China(11701245)the Scientific Research Fund of Sichuan Provincial Education Department(18ZB0272)
文摘In this article,some coupled coincidence point results for two mappings g:X→X and G:X×X→X satisfying F-contractive type conditions are obtained,and some coupled fixed point results are derived in partially ordered metric spaces.A sufficient condition for uniqueness of coupled point of coincidence are established for F type contraction,and a coupled common fixed point theorem is obtained.Some examples are given to support our results.
文摘A new maximal function is introduced in the dual spaces of test function spaces on spaces of homogeneous type. Using this maximal function, we get new characterization of atomic H^p spaces.
基金Supported by the NNSF of China(10771064, 11101139)Supported by the NSF of Zhejiang Province(Y7080197, Y6090036, Y6100219)Supported by the Foundation of Creative Group in Colleges and Universities of Zhejiang Province(T200924)
文摘This paper deals with the boundedness and compactness of the compositionintegral type operators T g, from F (p, q, s) spaces to(little) Bloch-type spaces in the unit ball of C n , where Tg,φf(z) =∫01fφ(tz)Rg(tz)(dt)/t , z ∈ B, g ∈ H(B) and φ∈H(B, B).
基金Supported by the National Natural Science Foundation of China (10771064)the Natural Science Foundation of Zhejiang province (Y6090036+1 种基金Y7080197,Y606197)the Foundation of Department of Education of Zhejiang Province (20070482)
文摘This paper deals with the boundedness and compactness of the weighted composition operators from the F（p, q, s） spaces, including Hardy space, Bergman space, Qp space, BMOA space, Besov space and α-Bloch space, to Bers-type spaces Hv^∞（ or little Bers-type spaces Hv,o∞ ）, where v is normal.
基金supported by the Scientific Research Foundation of Sichuan Normal University(20151602)National Natural Science Foundation of China(10671135,61179033)and the Key Project of Chinese Ministry of Education(212147)
文摘We propose a projection-type algorithm for generalized mixed variational in- equality problem in Euclidean space Rn. We establish the convergence theorem for the pro- posed algorithm, provided the multi-valued mapping is continuous and f-pseudomonotone with nonempty compact convex values on dom（f）, where f ： Rn --RU{＋∞} is a proper func- tion. The algorithm presented in this paper generalize and improve some known algorithms in literatures. Preliminary computational experience is also reported.
基金Project supported by the Egyptian Ministry of Scientific Research(Project No.24-2-12)
文摘A tetrad field that is homogeneous and anisotropic which contains two unknown functions A（t） and B（t） of cosmic time is applied to the field equations of f（T）, where T is the torsion scalar, T = T~μ_（νρ）S_μ^（νρ）. We calculate the equation of continuity and rewrite it as a product of two brackets, the first is a function of f（T） and the second is a function of the two unknowns A（t） and B（t）. We use two different relations between the two unknown functions A（t） and B（t） in the second bracket to solve it. Both of these relations give constant scalar torsion and solutions coincide with the de Sitter one. So,another assumption related to the contents of the matter fields is postulated. This assumption enables us to drive a solution with a non-constant value of the scalar torsion and a form of f（T） which represents ΛCDM.
基金Project supported by the Natural Science Foundation of Sichuan Education Department of China(No.2003A081)
文摘A class of generalized vector variational-type inequality problems （GVVTIP） are studied in FC-spaces, which includes the most of vector equilibrium problems, vector variational inequality problems, generalized vector equilibrium problems and general- ized vector variational inequality problem as special cases. By using F-KKM theorem, some new existence results for GVVTIP axe established in noncompact FC-space. As consequences, some recent known results in literature are obtained under much weaker assumption.
