1 Authorities in Montgomery Township,Pennsylvania,have introduced wavy lane patterns on some streets in an effort to slow down traffic in the area.2 Driving along Grays Lane in Montgomery Township for the first time m...1 Authorities in Montgomery Township,Pennsylvania,have introduced wavy lane patterns on some streets in an effort to slow down traffic in the area.2 Driving along Grays Lane in Montgomery Township for the first time must be challenging.Thats because the regular lane patterns have been replaced by wavy and zig⁃zag lines that look like they were painted by a drunk.But they are wavy by design.According to Montgomery Township officials,the unusual patterns were thought as the best solution to discouraging speeding on some of the streets.Police sources told local media outlets that the“traffic⁃calming measures”were installed in response to numerous complaints about certain streets being used as“speedways”.展开更多
为充分认识和分析CALM(Catenary Anchor Leg Mooring)单点系泊油船可能存在的"鱼尾效应",应用数值分析方法对该现象进行模拟分析和研究,得出外部环境载荷对该效应的影响规律,并探讨控制该效应的方法,对于CALM单点系泊系统设...为充分认识和分析CALM(Catenary Anchor Leg Mooring)单点系泊油船可能存在的"鱼尾效应",应用数值分析方法对该现象进行模拟分析和研究,得出外部环境载荷对该效应的影响规律,并探讨控制该效应的方法,对于CALM单点系泊系统设计具有一定的指导意义。展开更多
The crystal structures of 2-methyl-4-methoxy-phenyl [1,5] benzothiazepine (compound A, C_(17)H_(17)NOS, M_r = 283. 4 , D_c = 1. 27 g/cm3 ) and 1-methy1-3a-(4-methoxy-phenyl)-5-phenyl-3a, 4, 5, 11-tetrahydro-1, 2, 4-ox...The crystal structures of 2-methyl-4-methoxy-phenyl [1,5] benzothiazepine (compound A, C_(17)H_(17)NOS, M_r = 283. 4 , D_c = 1. 27 g/cm3 ) and 1-methy1-3a-(4-methoxy-phenyl)-5-phenyl-3a, 4, 5, 11-tetrahydro-1, 2, 4-oxadiazolino [1,5] benzothiazepine (compound B, C_(24)H_(22)N_2O_2S, M_r = 402. 5, D_c=1. 29 g/cm3) were determined using direct methods. The compounds crystallize in space groups P2_1/c and P1 , respectively , with cell dimensions a = 19. 218 (2) b= 6.2815(2), c= 12. 265(2) a,β= 93. 938(1)° , V= 1477. 2(3)A 3 , Z = for compound A and a= 10. 963(1), b= 11. 082 (1), c= 10. 076 (1)A a= 72. 38 (1),β=108.19(1), γ= 115. 16(1)°, V= 1031. 9(2)A 3, Z= 2 for compound B, the final R values are 0. 061 and 0. 057, respectively. The benzothiazepine ring in compound A is in a boat like conformation, while in compound B it assumes a twistboat conformation and the five-membered oxadiazolino ring cis-fused to it is in an envelope form due to the stability of whole system.展开更多
文摘1 Authorities in Montgomery Township,Pennsylvania,have introduced wavy lane patterns on some streets in an effort to slow down traffic in the area.2 Driving along Grays Lane in Montgomery Township for the first time must be challenging.Thats because the regular lane patterns have been replaced by wavy and zig⁃zag lines that look like they were painted by a drunk.But they are wavy by design.According to Montgomery Township officials,the unusual patterns were thought as the best solution to discouraging speeding on some of the streets.Police sources told local media outlets that the“traffic⁃calming measures”were installed in response to numerous complaints about certain streets being used as“speedways”.
文摘为阐明鹅Calm1基因结构特征及其表达规律。克隆四川白鹅Calm1基因编码区序列并进行生物信息学分析,应用实时荧光定量PCR技术检测鹅不同等级卵泡和不同组织中Calm1基因的相对表达量。鹅Calm1基因编码区序列全长为450 bp,编码149个氨基酸,其氨基酸序列与原鸡相似性为99%。鹅大脑中Calm1表达量显著高于其他组织(P<0.05)。Calm1在不同等级卵泡组织中均有表达,F2级卵泡中Calm1表达量是小白卵泡(Small white follicles,SWF)的1.76倍(P<0.05),且显著高于F5、F4、F3和F1级卵泡(P<0.05);在排卵后卵泡(Postovulatory follicle,POF)组织中,POF1级卵泡组织中Calm1表达量显著高于POF2、POF3和POF4级卵泡(P<0.05);卵巢组织中Calm1的表达量,是小白卵泡的1.75倍(P<0.05)。Calm1是高度保守、广泛表达的蛋白质,Calm1可能通过影响卵泡细胞增殖和类固醇激素合成来参与调控动物繁殖。
文摘The crystal structures of 2-methyl-4-methoxy-phenyl [1,5] benzothiazepine (compound A, C_(17)H_(17)NOS, M_r = 283. 4 , D_c = 1. 27 g/cm3 ) and 1-methy1-3a-(4-methoxy-phenyl)-5-phenyl-3a, 4, 5, 11-tetrahydro-1, 2, 4-oxadiazolino [1,5] benzothiazepine (compound B, C_(24)H_(22)N_2O_2S, M_r = 402. 5, D_c=1. 29 g/cm3) were determined using direct methods. The compounds crystallize in space groups P2_1/c and P1 , respectively , with cell dimensions a = 19. 218 (2) b= 6.2815(2), c= 12. 265(2) a,β= 93. 938(1)° , V= 1477. 2(3)A 3 , Z = for compound A and a= 10. 963(1), b= 11. 082 (1), c= 10. 076 (1)A a= 72. 38 (1),β=108.19(1), γ= 115. 16(1)°, V= 1031. 9(2)A 3, Z= 2 for compound B, the final R values are 0. 061 and 0. 057, respectively. The benzothiazepine ring in compound A is in a boat like conformation, while in compound B it assumes a twistboat conformation and the five-membered oxadiazolino ring cis-fused to it is in an envelope form due to the stability of whole system.
