The biology and population dynamics of Sitona Regensteinensis hbst. (col. Curculionidae)

Imperial Users onl

GIS Analysis for Urban Flood Hazard Mitigation in Kaduwela Municipal Council Area

Urban flood hazard is a typical natural disaster that occurs due to the reduction of permeable surfaces as a result of land use conversion and changes in rainfall intensity. It ensures the need of different mitigation strategies such as sufficient drainage system, and it is a simple mitigation measure that can be applied in the ground. This paper is timely due to the lack of research studies undertaken that are related to the study area. Natural disasters, flood hazard, influence of urbanization for urban flood, and negative influence of urban flood in the context of the world and Asian region have been discussed in the available literature. Limited research has been undertaken on urban flood mitigation based on hydrological analysis and run off volume calculation in Kaduwela Municipal Council (KMC) area. With this limitation, this paper focuses on analysing the runoff rainwater volume to mitigate urban flood in 2030 (predicted land use) by calculating the rainwater volume in natural and artificial possible outfalls of each watersheds in KMC. The analysis consists of three phases such as: land use prediction, hydrological analysis, and calculation. A GIS-based land use prediction is simulated to analyse the land use changes in relation to green, blue, and brown fills. The revealed land use conversion is also processing day by day as a result of land use conversion and rapid urbanization which will increase the runoff volume in 2030. A GISbased Hydrological analysis was carried out to identify the outfalls and watersheds of the study area. The possible outfalls function as outlets of runoff water which were collected in each watershed. Runoff volume was calculated by using rational formula (Q = 0.0028CIA) and the parameters of the equation used were the coefficient of land use in 2030, rainfall intensity, and 90 acres portion of the watersheds. A sufficient drainage system was also designed to make KMC a disaster resilient municipality. This research will be important in the process of decision-making and policy implementation in the fields of urban planning and flood mitigation

Codes over rings of size p2 and lattices over imaginary quadratic fields

AbstractLet ℓ>0 be a square-free integer congruent to 3 mod 4 and OK the ring of integers of the imaginary quadratic field K=Q(−ℓ). Codes C over rings OK/pOK determine lattices Λℓ(C) over K. If p∤ℓ then the ring R:=OK/pOK is isomorphic to Fp2 or Fp×Fp. Given a code C over R, theta functions on the corresponding lattices are defined. These theta series θΛℓ(C)(q) can be written in terms of the complete weight enumerators of C. We show that for any two ℓ<ℓ′ the first ℓ+14 terms of their corresponding theta functions are the same. Moreover, we conjecture that for ℓ>p(n+1)(n+2)2 there is a unique symmetric weight enumerator corresponding to a given theta function. We verify the conjecture for primes p<7, ℓ⩽59, and small n

Spectral features of canthaxanthin in hcp2. A qm/mm approach

The increased interest in sequencing cyanobacterial genomes has allowed the identifi-cation of new homologs to both the N-terminal domain (NTD) and C-terminal domain (CTD) of the Orange Carotenoid Protein (OCP). The N-terminal domain homologs are known as Helical Carotenoid Proteins (HCPs). Although some of these paralogs have been reported to act as singlet oxygen quenchers, their distinct functional roles remain unclear. One of these paralogs (HCP2) exclusively binds canthaxanthin (CAN) and its crystal structure has been recently characterized. Its absorption spectrum is significantly red-shifted, in comparison to the protein in solution, due to a dimerization where the two carotenoids are closely placed, favoring an electronic coupling interaction. Both the crystal and solution spectra are red-shifted by more than 50 nm when compared to canthaxanthin in solution. Using molecular dynamics (MD) and quantum mechanical/molecular mechanical (QM/MM) studies of HCP2, we aim to simulate these shifts as well as obtain insight into the environmental and coupling effects of carotenoid–protein interactions.Fil: Nixon, Kevin Clark. University of Connecticut; Estados UnidosFil: Pigni, Natalia Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Ciencia y Tecnología de Alimentos Córdoba; Argentina. University of Connecticut; Estados UnidosFil: Wijesiri, Kithmini. University of Connecticut; Estados UnidosFil: Gascón, José A.. University of Connecticut; Estados Unido

Impact of Critical Success Factors on ERP Implementation: Typical Organizations in Sri Lankan Context

Enterprise Resource Planning system is a software that suitable for the user to earn more ROI by involving business activities. By the way, most organizations are still afraid to adopt this to their organizations. The reason is the high-cost wastage, and also bankruptcy. But it is not true at all the time. ERP can implement to small and medium-sized organizations too. To clarify these points, the paper focuses on the critical factors that affect the success of an ERP implementation process. It will do by a conceptual framework. It review and assertion of 15 hypotheses will carry out using "structural equation modeling technique". The definition of multi-variable technology used since the ability to check multiple linear connections at once simultaneously depends on one or more variables dependently and independentl