In this paper, we consider the model for the survival of red blood ceels with several delaysdN(t)dt=-μ N(t)+m i=1 P ie -r iN(t-τ i) , t≥ 0 (*) and establish a sufficient condition under which the posit...In this paper, we consider the model for the survival of red blood ceels with several delaysdN(t)dt=-μ N(t)+m i=1 P ie -r iN(t-τ i) , t≥ 0 (*) and establish a sufficient condition under which the positive equilibrium N * of (*) is a global attractor. Our criteria generalize and improve the correspondent results obtained in .展开更多
In this paper, we deal with a model for the survival of red blood cells with periodic coefficients x＇（g）=-μ（t）x（t）＋P（t）e^-γ（t）x（t-τ（t））,t≥0.（＊）A new sufficient condition for global attractivity ...In this paper, we deal with a model for the survival of red blood cells with periodic coefficients x＇（g）=-μ（t）x（t）＋P（t）e^-γ（t）x（t-τ（t））,t≥0.（＊）A new sufficient condition for global attractivity of positive periodic solutions of Eq. （＊） is obtained. Our criterion improves corresponding result obtained by Li and Wang in 2005.展开更多
In this article we consider the kth-order discrete delay survival red blood cells model. The general form of the discrete dynamical system is rewritten as Xn＋l = f（Pn,δn,xn,... ,xn＋1） where Pn,δn converge to the...In this article we consider the kth-order discrete delay survival red blood cells model. The general form of the discrete dynamical system is rewritten as Xn＋l = f（Pn,δn,xn,... ,xn＋1） where Pn,δn converge to the parametric values P and 6. We show that when the parameters are replaced by sequences, the stability results of the original system still hold.展开更多
Objective To evaluate the long-term therapeutic effects of autologous peripheral blood stem cell transplantation (auto-PBSCT) on the treatment of hematological and solid tumors.Methods Fifty-one patients were recrui...Objective To evaluate the long-term therapeutic effects of autologous peripheral blood stem cell transplantation (auto-PBSCT) on the treatment of hematological and solid tumors.Methods Fifty-one patients were recruited in this auto-PBSCT study, in which several potentially important parameters were studied including the optimal time for stem cell collection, the dose of stem cell reinfusion, the time of hematopoietic reconstitution, the disease free survival (DFS) and overall survival (OS), complications related to transplantation, and maintenance chemotherapy after auto-PBSCT.Results After APBSCT, 3-year and 5-year survival rates of NHL were 83.3%; those of AML were 74.7%; those of MM were 37.9% and 19%; those of ALL were 40% and 0% respectively. Hematopoietic reconstitution was greatly promoted by granulocyte colony stimulating factor (G-CSF). The mean time for patients' neutrophil to recover up to >0.5×109/L after APBSCT was 11.14 days in the group of the patients receiving G-CSF in contrast to 17.6 days in the group receiving no G-CSF. The most common complications of transplantation were fever, liver dysfunction and hypokalaemia, which were curable. No death was due to transplantation related complications.Conclusion Comparing with conventional chemotherapy, our study suggests that auto-PBSCT is a very important therapeutic option that can significantly improve the prognosis in the patients with hematological and solid tumors, especially in the patients with AML and NHL.展开更多
文摘In this paper, we consider the model for the survival of red blood ceels with several delaysdN(t)dt=-μ N(t)+m i=1 P ie -r iN(t-τ i) , t≥ 0 (*) and establish a sufficient condition under which the positive equilibrium N * of (*) is a global attractor. Our criteria generalize and improve the correspondent results obtained in .
基金the National Natural Science Foundation of China(No.10271044)Research Fund of Hunan Provincial Education Department(No.06C719)
文摘In this paper, we deal with a model for the survival of red blood cells with periodic coefficients x＇（g）=-μ（t）x（t）＋P（t）e^-γ（t）x（t-τ（t））,t≥0.（＊）A new sufficient condition for global attractivity of positive periodic solutions of Eq. （＊） is obtained. Our criterion improves corresponding result obtained by Li and Wang in 2005.
文摘In this article we consider the kth-order discrete delay survival red blood cells model. The general form of the discrete dynamical system is rewritten as Xn＋l = f（Pn,δn,xn,... ,xn＋1） where Pn,δn converge to the parametric values P and 6. We show that when the parameters are replaced by sequences, the stability results of the original system still hold.
文摘Objective To evaluate the long-term therapeutic effects of autologous peripheral blood stem cell transplantation (auto-PBSCT) on the treatment of hematological and solid tumors.Methods Fifty-one patients were recruited in this auto-PBSCT study, in which several potentially important parameters were studied including the optimal time for stem cell collection, the dose of stem cell reinfusion, the time of hematopoietic reconstitution, the disease free survival (DFS) and overall survival (OS), complications related to transplantation, and maintenance chemotherapy after auto-PBSCT.Results After APBSCT, 3-year and 5-year survival rates of NHL were 83.3%; those of AML were 74.7%; those of MM were 37.9% and 19%; those of ALL were 40% and 0% respectively. Hematopoietic reconstitution was greatly promoted by granulocyte colony stimulating factor (G-CSF). The mean time for patients' neutrophil to recover up to >0.5×109/L after APBSCT was 11.14 days in the group of the patients receiving G-CSF in contrast to 17.6 days in the group receiving no G-CSF. The most common complications of transplantation were fever, liver dysfunction and hypokalaemia, which were curable. No death was due to transplantation related complications.Conclusion Comparing with conventional chemotherapy, our study suggests that auto-PBSCT is a very important therapeutic option that can significantly improve the prognosis in the patients with hematological and solid tumors, especially in the patients with AML and NHL.
