Bis(2-amino-1,3-benzothia­zol-3-ium) bis­(7-oxabicyclo­[2.2.1]heptane-2,3-dicarboxyl­ato)cadmate hexa­hydrate

In the structure of the title complex, (C7H7N2S)2[Cd(C8H8O5)2]·6H2O, the CdII atom is located on an inversion center and is O,O′,O′′-chelated by two symmetry-related 7-oxabicyclo­[2.2.1]heptane-2,3-dicarboxyl­ate ligands in a distorted octa­hedral geometry. The 2-amino­benzothia­zolium cation links with the Cd complex anion via N—H⋯O hydrogen bonding. Extensive O—H⋯O and N—H⋯O hydrogen bonds involving lattice water mol­ecules occur in the crystal structure

Sustainable road alignment planning in the built environment based on the MCDM-GIS method

Sustainable road planning in the cities' built-up areas strives to meet traffic demands of society within limited spaces available for construction and various constraints in the built environment considering engineering, traffic, economic, social, and environmental factors. Unlike rural areas, road planning in the built environment can be significantly influenced by the surroundings, such as existing buildings, road network, and land use, and should consider noise and air pollution impact on residents. In addition, road width and road widening are significant factors for road alignment planning. Based on the MCDM-GIS method, the least-cost wide path algorithm is employed for sustainable road alignment planning in the built environment, considering building demolition and land use, traffic congestion, noise impact, air pollution impact, and construction costs. Road width, new road construction, and existing road widening are considered simultaneously. Several methods are proposed to digitalise and parse various sustainable factors into understandable expressions for road alignment planning. Forbidden areas and road buffer areas for road widening are defined. The proposed method is implemented in road planning in Dartford, Kent County, UK. Sustainable factors with different weights can generate various road alignments from different perspectives, and road widths can significantly and locally influence road alignments

Two Case Reports of Familial Chylomicronemia Syndrome

Familial chylomicronemia is a rare autosomal recessive disorder which is also called Hyperlipoproteinemia type I. Here we report two cases with this rare disorder that were admitted to our hospital in recent years

CMTM2 is essential for spermiogenesis in mice

Objective: This study is to investigate whether CKLF-like MARVEL transmembrane domain-containing protein 2 (CMTM2) is involved in spermatogenesis in mice. CMTM2 is highly expressed in testis, and could possibly a potential spermagogenesis specific gene. Methods: CMTM2-deficient mouse model was generated. Northern, RT-PCR and Western blotting analysis were performed on total RNA derived from wild-type (WT, CMTM2(+/+)) and CMTM2(+/-)(heterozygote) and CMTM2(-/-)(homozygote) mice to examine the CMTM2 level. The number of litters and the number of pups were counted and pregnancy rates calculated. The motility and morphology of the sperm and the histology of testes were analyzed. Serum testosterone and FSH concentrations were also measured. Standard t-tests (Excel, Microsoft, Redmond, WA, USA) were used and standard error of means were calculated. Results: CMTM2 is highly expressed in a finely regulated pattern in the mouse testis during spermatogenesis. The body weight of adult mice with CMTM2 deficiency was not significantly different from that of wild type mice. No obvious anatomical or behavioral abnormalities were observed. The testes of CMTM2(-/-)were smaller than that of CMTM2(+/+) mice. Female CMTM2 null mice are fertile, indicating that CMTM2 is not required for female gametogenesis. The CMTM2(-/-)mice produced virtually no sperm, and CMTM2(+/-)mice sperm count showed a significant decline. The hormone levels are not significantly different. The CMTM2(-/-)male mice are sterile due to a late, complete arrest of spermiogenesis. The organized architecture of the seminiferous epithelium of the seminiferous tubules seen in CMTM2(+/+) mice was lost in CMTM2(-/-)mice. Conclusions: This study suggests CMTM2 is not required for embryonic development in the mouse but is essential for spermiogenesis.NIH [AG14875]; Specialized Research Fund for the Doctoral Program of Higher Education, China [20-120001120056]SCI(E)[email protected]