Effects of tie beam length, width and overlap stress on settlement of foundations have been investigated. In this investigation square concrete footings have been used with dimensions (B × B × d) where (d) i...Effects of tie beam length, width and overlap stress on settlement of foundations have been investigated. In this investigation square concrete footings have been used with dimensions (B × B × d) where (d) is footing depth and (B) is footing width (1, 1.5,2 m). Width of tie beam (b) has been taken equal to 0.25, 0.30, 0.40, 0.50 and 0.75 (m). Tie beam length (L) has been taken varying from B till 3B with same footing depth = 0.50 m. Effect of overlap stress on settlement as well as effect of tie beam width and length on settlement has been determined. Also, the efficiency of tie beam length and width has been obtained. An equation is presented to compute the overlap stress zone in case of existing tie beam. It is found that the settlement increases with increasing the length of tie beam which is clear after the effect of the overlap stresses zone. The width of overlap stress zone case of existing tie beam has been found to be equal to (1.6 -1.75) B. The settlement of footings decreases with increasing tie beam width. It is found that the settlement after the effect of the overlap stress zone increases with increasing the length of tie beam.展开更多
Objectives: this research was conducted to describe the ultrasonic measurements of the foot full measurements (FFM) and their importance in the antenatal care (ANC). Material and methods: the Descriptive quantitative ...Objectives: this research was conducted to describe the ultrasonic measurements of the foot full measurements (FFM) and their importance in the antenatal care (ANC). Material and methods: the Descriptive quantitative cross-sectional study conducted in the ultrasound department at Alshaekh Mohammed Ali Fadol hospital in Omdurman locality. The study included 400 healthy Sudanese pregnant women whom in the 1st (late), 2nd and 3rd trimesters (i.e., after 10 weeks gestational age) of different parity and ages (15 years old and above);they have regular menstrual cycle and well certain of their last menstrual period and calculated date of delivery. Ultrasonographic measurement of Full Foot Length1 (FFL1), Foot Full Length2 (FFL2), and Foot Full Width (FFW) of all pregnant women were done. Sonographically we measured fetal foot from 14 to 40 weeks of gestation. Results: the study revealed that the mean FFL1 was 58.7 ± 12.9 mm. The minimum measurement was 18.8 mm, and the maximum was 89.1 mm, while the mean value of FFL2 was 53.4 ± 11.4 mm, with minimum value 17.5 mm and maximum 81.7 mm, and the mean FFW was 23.7 ± 5.1 mm, with minimum value 7.0 mm and maximum 38.0 mm. Conclusion: a strongly significant relationships were observed between (FFL1, FFL2, FFW) and gestational age (p = 0.00). However there is no significant difference between the FFL1, FFL2, and correlations with sex of embryo, residence, occupation, parity, maternal height, socioeconomic status, bleeding during this pregnancy, chronic illness, and caesarian section, moreover there are significant correlations between the FFL1, FFL2 and the (maternal age, maternal weight, and body mass index), but in the measurement of the fetal FFW there were no significant correlations with (sex of embryo, maternal age, body mass index, residence, occupation, parity, socioeconomic status, bleeding during this pregnancy, chronic illness, and caesarian section). Also there are significant correlations between the FFW and the maternal weight and height.展开更多
目的探讨红细胞体积分布宽度(RDW)和中性粒细胞与淋巴细胞比(NLR)联合预测糖尿病足预后的价值。方法收集新疆医科大学第一附属医院2017年1月至2019年12月在血管甲状腺外科住院行截肢手术的糖尿病足100例患者的临床资料进行回顾性分析。...目的探讨红细胞体积分布宽度(RDW)和中性粒细胞与淋巴细胞比(NLR)联合预测糖尿病足预后的价值。方法收集新疆医科大学第一附属医院2017年1月至2019年12月在血管甲状腺外科住院行截肢手术的糖尿病足100例患者的临床资料进行回顾性分析。按截肢平面分为大截肢组(踝关节以上,n=50)和小截肢组(踝关节及以下,n=50),分析术前NLR和RDW对截肢手术平面的预测效能。结果大截肢组患者术前NLR(9.81±2.09 vs 6.95±3.25,P<0.01)和RDW(14.02±2.87 vs 12.94±1.96,P<0.05)显著高于小截肢组。Logistic回归分析显示,术前高NLR和RDW水平是糖尿病足患者大截肢的独立危险因素(P<0.05)。ROC曲线分析显示,联合检测糖尿病足大截肢的AUC(0.79)大于NLR和RDW单项检测(0.77和0.59),敏感度、特异度(70.1%、71.8%)高于NLR和RDW单项检测(69.1%、68.3%和60.1%、61.2%)。结论糖尿病足患者术前NLR和RDW越高,行大截肢手术的可能性越大。术前NLR和RDW可能可以作为预测糖尿病足患者预后的指标。展开更多
文摘Effects of tie beam length, width and overlap stress on settlement of foundations have been investigated. In this investigation square concrete footings have been used with dimensions (B × B × d) where (d) is footing depth and (B) is footing width (1, 1.5,2 m). Width of tie beam (b) has been taken equal to 0.25, 0.30, 0.40, 0.50 and 0.75 (m). Tie beam length (L) has been taken varying from B till 3B with same footing depth = 0.50 m. Effect of overlap stress on settlement as well as effect of tie beam width and length on settlement has been determined. Also, the efficiency of tie beam length and width has been obtained. An equation is presented to compute the overlap stress zone in case of existing tie beam. It is found that the settlement increases with increasing the length of tie beam which is clear after the effect of the overlap stresses zone. The width of overlap stress zone case of existing tie beam has been found to be equal to (1.6 -1.75) B. The settlement of footings decreases with increasing tie beam width. It is found that the settlement after the effect of the overlap stress zone increases with increasing the length of tie beam.
文摘Objectives: this research was conducted to describe the ultrasonic measurements of the foot full measurements (FFM) and their importance in the antenatal care (ANC). Material and methods: the Descriptive quantitative cross-sectional study conducted in the ultrasound department at Alshaekh Mohammed Ali Fadol hospital in Omdurman locality. The study included 400 healthy Sudanese pregnant women whom in the 1st (late), 2nd and 3rd trimesters (i.e., after 10 weeks gestational age) of different parity and ages (15 years old and above);they have regular menstrual cycle and well certain of their last menstrual period and calculated date of delivery. Ultrasonographic measurement of Full Foot Length1 (FFL1), Foot Full Length2 (FFL2), and Foot Full Width (FFW) of all pregnant women were done. Sonographically we measured fetal foot from 14 to 40 weeks of gestation. Results: the study revealed that the mean FFL1 was 58.7 ± 12.9 mm. The minimum measurement was 18.8 mm, and the maximum was 89.1 mm, while the mean value of FFL2 was 53.4 ± 11.4 mm, with minimum value 17.5 mm and maximum 81.7 mm, and the mean FFW was 23.7 ± 5.1 mm, with minimum value 7.0 mm and maximum 38.0 mm. Conclusion: a strongly significant relationships were observed between (FFL1, FFL2, FFW) and gestational age (p = 0.00). However there is no significant difference between the FFL1, FFL2, and correlations with sex of embryo, residence, occupation, parity, maternal height, socioeconomic status, bleeding during this pregnancy, chronic illness, and caesarian section, moreover there are significant correlations between the FFL1, FFL2 and the (maternal age, maternal weight, and body mass index), but in the measurement of the fetal FFW there were no significant correlations with (sex of embryo, maternal age, body mass index, residence, occupation, parity, socioeconomic status, bleeding during this pregnancy, chronic illness, and caesarian section). Also there are significant correlations between the FFW and the maternal weight and height.
文摘目的探讨红细胞体积分布宽度(RDW)和中性粒细胞与淋巴细胞比(NLR)联合预测糖尿病足预后的价值。方法收集新疆医科大学第一附属医院2017年1月至2019年12月在血管甲状腺外科住院行截肢手术的糖尿病足100例患者的临床资料进行回顾性分析。按截肢平面分为大截肢组(踝关节以上,n=50)和小截肢组(踝关节及以下,n=50),分析术前NLR和RDW对截肢手术平面的预测效能。结果大截肢组患者术前NLR(9.81±2.09 vs 6.95±3.25,P<0.01)和RDW(14.02±2.87 vs 12.94±1.96,P<0.05)显著高于小截肢组。Logistic回归分析显示,术前高NLR和RDW水平是糖尿病足患者大截肢的独立危险因素(P<0.05)。ROC曲线分析显示,联合检测糖尿病足大截肢的AUC(0.79)大于NLR和RDW单项检测(0.77和0.59),敏感度、特异度(70.1%、71.8%)高于NLR和RDW单项检测(69.1%、68.3%和60.1%、61.2%)。结论糖尿病足患者术前NLR和RDW越高,行大截肢手术的可能性越大。术前NLR和RDW可能可以作为预测糖尿病足患者预后的指标。
