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Outcomes of Layered versus Mass Closure in Transverse Incision during Emergency Laparotomy in Children
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作者 Khandoker Moynul Hasan Shahnoor islam +7 位作者 Md. Ashraf Ul Huq Muhammed Moinul Huque Shah Md. Rezaul Karim Mohammad shafiul Azam Md. Iqbal Hossain Talukder Sharmin Ara Begum Mohammad Kamrul Ahsan A. K. M. Shahidur Rahman 《Journal of Biosciences and Medicines》 2020年第8期180-193,共14页
<strong>Background:</strong> The value of laparotomy closure technique may be measured by the incidence of early and late wound complications. The best laparotomy closure technique should be less time cons... <strong>Background:</strong> The value of laparotomy closure technique may be measured by the incidence of early and late wound complications. The best laparotomy closure technique should be less time consuming, easy and cost-effective, while preventing both early and late complications. <strong>Objective:</strong> To compare the outcomes of layered versus mass closure in transverse incision during emergency laparotomy in children. <strong>Methods: </strong>This prospective comparative study was conducted at Department of Pediatric Surgery, Dhaka Medical College Hospital (DMCH), Dhaka, Bangladesh from July 2016 to June 2018. A total of 60 pediatric age cases that underwent laparotomy were included in this study. Cases were randomly allocated into two groups;30 patients were in Group A (Layered closure) and 30 patients were in Group B (Mass closure). The outcome variables were time required for wound closure, wound infection, wound dehiscence and incisional hernia. Data were analyzed and compared by statistical tests. <strong>Results: </strong>The mean age of Group A and Group B patients were 31.08 ± 30.25 months and 34.70 ± 42.73 months respectively (p = 0.706). The ratio between male and female subject was 1.1:1 in Group A and 3.3:1 in Group B. The common diseases of the study patients who underwent laparotomy were intussusceptions, intestinal obstruction due to bands and adhesion, perforated appendix and perforation of small intestine due to blunt trauma respectively. Mean wound closure time was significantly less in mass closure group [28.20 ± 2.17 minutes in layered closure group and 18.80 ± 1.67 minutes in mass closure group, (p ≤ 0.001)]. Wound infection rate, incidence of superficial wound dehiscence, and incisional hernia were relatively less in mass closure group, however, the differences were not statistically significant (p = 0.053, p = 0.095 and p = 0.301 respectively). There was no complete wound dehiscence in Group A, but that was in 1 (3.3%) patient in Group B (p = 0.313). <strong>Conclusion: 展开更多
关键词 LAPAROTOMY Layered Closure Mass Closure
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Breeding Potential of Some Exotic Tomato Lines:A Combined Study of Morphological Variability,Genetic Divergence,and Association of Traits
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作者 shafiul islam Lutful Hassan Mohammad Anwar Hossain 《Phyton-International Journal of Experimental Botany》 SCIE 2022年第1期97-114,共18页
Tomato(Solanum lycopersicum L.)is called‘the poor man’s orange’due to its low price and improved nutritional values.An experiment was conducted to study the breeding potential of some exotic tomato lines by assessi... Tomato(Solanum lycopersicum L.)is called‘the poor man’s orange’due to its low price and improved nutritional values.An experiment was conducted to study the breeding potential of some exotic tomato lines by assessing various qualitative and quantitative traits conferring yield and quality attributes.Among the qualitative traits,greater variability was observed for growth type,stem hairiness,and fruit shape and size.A determinate growth habit was observed in the genotype AVTO9802 while the genotype AVTO0102 produced yellow color fruits.A significant(p≤0.01)variation was also observed for the studied quantitative traits.Based on yield and traits attributed to yield,the genotypes AVTO0314,GPB0107,GPB0120 and AVTO9802 were selected as promising genotypes.The differences between the genotypic and phenotypic coefficients of variation(GCV and PCV)of the studied quantitative traits were very low.This suggests that the apparent variation was mainly due to the genotypes.The higher GCVand PCV values were observed for the number of primary branches plant^(−1)(NPB),number of fruits cluster^(−1)(NFC),individual fruit weight(IFW)and total soluble solids(TSS).High heritability was recorded for all quantitative traits in a broad sense.However,the individual fruit diameter showed the highest heritability(99.56).The highest(102.75)genetic advance(GA)was observed for the number of fruits plant^(−1)(NFP).High heritability coupled with high GA as percentage of mean were recorded for the traits NFP,NFC,fruit yield plant^(−1)(FYP)and IFW.FYP showed a significant positive correlation with NFC(0.714^(***))and a negative correlation with days to the first harvest(−0.539^(***))and plant height(−0.492**).Principal component analysis revealed that the first four components explained 78.5%of the total variation among the genotypes.Thus,the promising genotypes(AVTO0314,GPB0107,GPB0120,AVTO9802 and AVTO0102)isolated from this study can be used for developing high-yielding and high-quality tomato varieties. 展开更多
关键词 TOMATO yield and quality traits genetic advance HERITABILITY correlation coefficient principal component analysis
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基于3D打印技术树脂蜂窝复合材料夹芯结构的力学性能研究
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作者 齐明雪 陆春 +3 位作者 徐艳荣 项松 高双胜 shafiul islam 《纤维复合材料》 CAS 2016年第4期13-17,12,共6页
本文利用增材制造技术制备了Bi-grid、Tri-grid、Quadri-grid和Kagome-grid 4种闭孔芯子结构,其与上、下面板胶粘在一起形成复合材料夹芯结构。利用有限元分析及三点弯曲测试,研究4种不同闭孔夹芯结构在弯曲载荷作用下的力学响应行为,... 本文利用增材制造技术制备了Bi-grid、Tri-grid、Quadri-grid和Kagome-grid 4种闭孔芯子结构,其与上、下面板胶粘在一起形成复合材料夹芯结构。利用有限元分析及三点弯曲测试,研究4种不同闭孔夹芯结构在弯曲载荷作用下的力学响应行为,并观察不同结构的破坏形式。结果表明:Bi-grid闭孔夹心结构的失效模式为芯子与面板的脱粘,而其他三种结构的临界破坏方式为芯子的剪切破坏。试样面板应力集中区域位于上面板的加载区域及下面板的支撑区域,芯子应力集中区域位于加载与支撑之间。Quadri-grid闭孔夹芯结构的力学性能优于其他三种结构。 展开更多
关键词 复合材料夹芯结构 3D打印技术 有限元分析 弯曲性能测试
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