AIM： To further evaluate the relationship between BSA and the effects of lamivudine in a greater number of cases and over a longer period of observation than in our previous evaluation. METHODS： We evaluated 249 pat...AIM： To further evaluate the relationship between BSA and the effects of lamivudine in a greater number of cases and over a longer period of observation than in our previous evaluation. METHODS： We evaluated 249 patients with chronic hepatitis B. The effects of treatment for one year （n = 249）, two years （n = 147）, and three years （n = 72） were evaluated from the levels of serum ALT and HBVoDNA, as biological and virological effects （undetectable levels by PCR）, respectively. Moreover, several variables that could influence the response to treatment, including ALT, albumin, bilirubin, platelet counts, BSA, HBVoDNA, and HBeAg were analyzed. RESULTS： For 1-year treatment, multivariate analysis revealed that BSA （P = 0.0002） was the only factor for the biological effect, and that ALT （P = 0.0017）, HBV- DNA （P = 0.0004）, and HBeAg （P = 0.0021） were independent factors for the virological effect. For 2-year treatment, multivariate analysis again showed that BSA （P = 0.0147） was the only factor for the biological effect, and that ALT （P = 0.0192） and HBeAg （P = 0.0428） were independent factors for the virological effect. For 3-year treatment, multivariate analysis, however, could not reveal BSA （P = 0.0730） as a factor for the normalization of ALT levels. CONCLUSION： BSA is a significant predictor for the normalizing the effect of lamivudine therapy on ALT for an initial 2-year period, suggesting that lamivudine dosage should be based on the individual BSA.展开更多
The aim of this study is to investigate the effect of the hemofiltration-body surface area on mortality and morbidity during cardiopulmonary bypass (CBP). A total of 226 patients were divided into two groups as hemofi...The aim of this study is to investigate the effect of the hemofiltration-body surface area on mortality and morbidity during cardiopulmonary bypass (CBP). A total of 226 patients were divided into two groups as hemofiltration (HF) performed or not performed. The patients to whom hemofiltration was performed were also divided into three subgroups after the distribution analysis which was done according to body surface area. All patients were compared according to the relationship of hemofiltration-body surface area during cardiopulmonary bypass in the interms of mortality and morbidity. There was no statistically significant relationship between the subgroups according to the amount of hemofiltration by square meters (p = 0.818). There was statistically significant difference in total perfusion times and total hospital stay (p = 0.025;p = 0.038) between the subgroups which were divided by the amount of hemofiltration in square meters. As a result, no effect was observed on the mortality of the relationship between the amount of hemofiltration applied during CBP and body surface area.展开更多
Body surface area（BSA）was regarded as a more readily quantifiable parameter relative to body mass in the normalization of comparative biochemistry and physiology.The BSA prediction has attracted unceasing research b...Body surface area（BSA）was regarded as a more readily quantifiable parameter relative to body mass in the normalization of comparative biochemistry and physiology.The BSA prediction has attracted unceasing research back more than a century on animals,especially on humans and rats.Few studies in this area for anurans were reported,and the equation for body surface area（S）and body mass（W）：S=9.9 W 0.56,which was concluded from toads of four species in 1969,was generally adopted to estimate the body surface areas for anurans until recent years.However,this equation was not applicable to Odorrana grahami.The relationship between body surface area and body mass for this species was established as：S=15.4 W 0.579.Our current results suggest estimation equations should be used cautiously across different species and body surface area predictions on more species need to be conducted.展开更多
In this paper, the concepts of the ith L;-mixed affine surface area and Lp-polar curvature images are introduced, some new inequalities connecting these new notions with Lρ-centroid bodies and ρ-Blaschke bodies are ...In this paper, the concepts of the ith L;-mixed affine surface area and Lp-polar curvature images are introduced, some new inequalities connecting these new notions with Lρ-centroid bodies and ρ-Blaschke bodies are showed. Moreover, a Blaschke-Santalo type inequality for Lρ-mixed affine surface area is established. Our results also imply the similar to the inequalities for Marcus-Lopes, Bergstrom and Ky Fan.展开更多
It is shown that a convex body has minimal dual p-surface area among its affine transformations of the same volume if and only if its dual p-surface area measure is isotropic. A double-sided estimate for the （n-1）-d...It is shown that a convex body has minimal dual p-surface area among its affine transformations of the same volume if and only if its dual p-surface area measure is isotropic. A double-sided estimate for the （n-1）-dimensional volume of the intersection of a dual p-surface isotropic convex body in terms of its affine invariant dual p-surface quantity is given. Furthermore, the dual p-isopermetric inequality is obtained.展开更多
In this paper, combining with the L_p-dual geominimal surface area and the general L_p-centroid bodies, we research the Shephard type problems for general L_p-centroid bodies.
For p > 0, Lutwak, Yang and Zhang introduced the concept of L_p-polar projection body Γ_(-p)K of a convex body K in Rn. Let p ≥ 1 and K, L ? Rnbe two origin-symmetric convex bodies, we consider the question of wh...For p > 0, Lutwak, Yang and Zhang introduced the concept of L_p-polar projection body Γ_(-p)K of a convex body K in Rn. Let p ≥ 1 and K, L ? Rnbe two origin-symmetric convex bodies, we consider the question of whether Γ_(-p) K ? Γ_(-p) L implies ?_p(L) ≤ ?_p(K),where ?_p(K) denotes the L_p-affine surface area of K and K = Voln(K)^(-1/p) K. We prove a necessary and sufficient condition of an analog of the Shephard problem for the L_p-polar projection bodies.展开更多
文摘AIM： To further evaluate the relationship between BSA and the effects of lamivudine in a greater number of cases and over a longer period of observation than in our previous evaluation. METHODS： We evaluated 249 patients with chronic hepatitis B. The effects of treatment for one year （n = 249）, two years （n = 147）, and three years （n = 72） were evaluated from the levels of serum ALT and HBVoDNA, as biological and virological effects （undetectable levels by PCR）, respectively. Moreover, several variables that could influence the response to treatment, including ALT, albumin, bilirubin, platelet counts, BSA, HBVoDNA, and HBeAg were analyzed. RESULTS： For 1-year treatment, multivariate analysis revealed that BSA （P = 0.0002） was the only factor for the biological effect, and that ALT （P = 0.0017）, HBV- DNA （P = 0.0004）, and HBeAg （P = 0.0021） were independent factors for the virological effect. For 2-year treatment, multivariate analysis again showed that BSA （P = 0.0147） was the only factor for the biological effect, and that ALT （P = 0.0192） and HBeAg （P = 0.0428） were independent factors for the virological effect. For 3-year treatment, multivariate analysis, however, could not reveal BSA （P = 0.0730） as a factor for the normalization of ALT levels. CONCLUSION： BSA is a significant predictor for the normalizing the effect of lamivudine therapy on ALT for an initial 2-year period, suggesting that lamivudine dosage should be based on the individual BSA.
文摘The aim of this study is to investigate the effect of the hemofiltration-body surface area on mortality and morbidity during cardiopulmonary bypass (CBP). A total of 226 patients were divided into two groups as hemofiltration (HF) performed or not performed. The patients to whom hemofiltration was performed were also divided into three subgroups after the distribution analysis which was done according to body surface area. All patients were compared according to the relationship of hemofiltration-body surface area during cardiopulmonary bypass in the interms of mortality and morbidity. There was no statistically significant relationship between the subgroups according to the amount of hemofiltration by square meters (p = 0.818). There was statistically significant difference in total perfusion times and total hospital stay (p = 0.025;p = 0.038) between the subgroups which were divided by the amount of hemofiltration in square meters. As a result, no effect was observed on the mortality of the relationship between the amount of hemofiltration applied during CBP and body surface area.
基金supported by National Natural Science Foundation of China (30800100)Science and Technology Offi ce of Guiyang, China (2012204-28)
文摘Body surface area（BSA）was regarded as a more readily quantifiable parameter relative to body mass in the normalization of comparative biochemistry and physiology.The BSA prediction has attracted unceasing research back more than a century on animals,especially on humans and rats.Few studies in this area for anurans were reported,and the equation for body surface area（S）and body mass（W）：S=9.9 W 0.56,which was concluded from toads of four species in 1969,was generally adopted to estimate the body surface areas for anurans until recent years.However,this equation was not applicable to Odorrana grahami.The relationship between body surface area and body mass for this species was established as：S=15.4 W 0.579.Our current results suggest estimation equations should be used cautiously across different species and body surface area predictions on more species need to be conducted.
基金Supported by the NNSF of China(11161024)Supported by the NSF of Jiangxi Province (2010GZC0115)
文摘In this paper, the concepts of the ith L;-mixed affine surface area and Lp-polar curvature images are introduced, some new inequalities connecting these new notions with Lρ-centroid bodies and ρ-Blaschke bodies are showed. Moreover, a Blaschke-Santalo type inequality for Lρ-mixed affine surface area is established. Our results also imply the similar to the inequalities for Marcus-Lopes, Bergstrom and Ky Fan.
基金Project supported by the National Natural Science Foundation of China (Grant No.10671117)
文摘It is shown that a convex body has minimal dual p-surface area among its affine transformations of the same volume if and only if its dual p-surface area measure is isotropic. A double-sided estimate for the （n-1）-dimensional volume of the intersection of a dual p-surface isotropic convex body in terms of its affine invariant dual p-surface quantity is given. Furthermore, the dual p-isopermetric inequality is obtained.
文摘In this paper, combining with the L_p-dual geominimal surface area and the general L_p-centroid bodies, we research the Shephard type problems for general L_p-centroid bodies.
基金Supported by the National Natural Science Foundation of China(11561020,11371224)Supported by the Science and Technology Plan of the Gansu Province(145RJZG227)
文摘For p > 0, Lutwak, Yang and Zhang introduced the concept of L_p-polar projection body Γ_(-p)K of a convex body K in Rn. Let p ≥ 1 and K, L ? Rnbe two origin-symmetric convex bodies, we consider the question of whether Γ_(-p) K ? Γ_(-p) L implies ?_p(L) ≤ ?_p(K),where ?_p(K) denotes the L_p-affine surface area of K and K = Voln(K)^(-1/p) K. We prove a necessary and sufficient condition of an analog of the Shephard problem for the L_p-polar projection bodies.
文摘在国家复苏河湖生态环境的要求下,分析京津冀平原区长序列水面面积变化特征及变化原因,有助于科学制定区域生态补水量及预测补水效果。研究通过3期土地利用数据融合确定了京津冀平原区的水域面积,基于GEE(Google Earth Engine)云平台提取了1985—2020年京津冀平原区长序列水面面积,并分析了水域面积填充率及水面面积演变原因。结果表明,京津冀平原区水面面积呈增加趋势,与1985年相比,2020年中部平原区水域面积填充率由3.6%增加到18.5%,滨海平原区水域面积填充率由30%增加到45%;生态补水是河湖水面面积增加的主要原因,2020年较2001年中部平原区水面面积增加了176 km 2,本地和南水北调生态补水的贡献占到84%。进一步以河湖复苏为目标,从水域面积填充率的角度设置了不同情景,分别估算了不同情景下的河湖生态需水量,为未来生态补水计划提供参考。研究成果系统分析了京津冀平原区水面现状及生态补水的效果,对京津冀平原区开展合理河湖复苏措施具有重要意义。
