For more than a century, the origin and evolution of the arthropod head and brain have eluded a unifying rationale reconciling divergent morphologies and phylogenetic relationships. Here, clarification is provided by the fossilized nervous system of the lower Cambrian lobopodian Cardiodictyon catenulum, which reveals an unsegmented head and brain comprising three cephalic domains, distinct from th

Complement C3 was originally regarded as a serum effector protein, although recent data has emerged suggesting that intracellular C3 can also regulate basic cellular processes. Despite the growing interest in intracellular C3 functions, the mechanism behind its generation has not been demonstrated. In this study we show that C3 can be expressed from an alternative translational start site, resulti

New conodont and stable isotope data are presented from the classical Baizitian section in the Yanbian County of Sichuan Province, South China. The Telychian to Sheinwoodian strata were sampled and studied for carbon isotope stratigraphy and conodont biostratigraphy. The paired δ13Ccarb and δ13Corg data reveal a pronounced positive excursion, the Manitowoc carbon isotope excursion (Manitowoc CIE,

Traditional fire alarms emit a high-frequency sound to alert the occupants of an imminent threat, which may be less appropriate for people who are deaf or hard of hearing. To address this issue, the scientific literature concerning alternative alarm technologies has been reviewed to evaluate their effectiveness in awakening people who are deaf or hard of hearing. The results show that low-frequenc

From the reaction of 2-hydroxy-6-methylpyridine (L) with iron(ii) tetrafluoroborate, a new mononuclear iron(iii) octahedral complex [FeL6](BF4)3 has been isolated. The color of the complex reversibly changed from red at room temperature to yellow-orange at the liquid nitrogen temperature. Magnetization measurements indicate that iron(iii) in [FeL6](BF4)3 is in a high-spin state S = 5/2, from room

The aim of this thesis is to investigate if a deeper relation between form and movement can be achieved and strengthened with the help of digital tools. The work consists of three phases, starting with a foundation of interdisciplinary research regarding different theories about form and movement. These are then used as a broad toolset for experimenting with a physical proposal. In the second phas

Object shift (OS) is a word order phenomenon in Scandinavian languages where under some circumstances the object appears before a sentential adverb. Despite the frequent assumptions that word order is determined in syntax, and despite the link of OS and syntactic phenomena like V2, there is no consensus that OS is a syntactic phenomenon. Particularly, it has been observed that OS targets specifica

Orthogonal multi-user multiple-input multiple-output (MU-MIMO) channels allow for optimum performance with simplified precoding/equalization, and they achieve maximum multiplexing gain which is shared fairly among users. Reconfigurable intelligent surface (RIS) constitutes a promising cost-efficient solution to improve the wireless channel, since they consist of passive reflecting elements able to

In this paper we investigate simultaneous radial distortion calibration and motion estimation for vehicles travelling parallel to planar surfaces. This is done by estimating the inter-image homography between two poses, as well as the distortion parameter. Radial distortion correction is often performed as a pre-calibration step; however, accurately estimating the distortion profile without specia

Nanocomposites of high-pressure polyethylene and zinc oxide nanoparticles are synthesized through thermal decomposition of zinc acetate. The phase composition of the nanocomposites is determined by x-ray diffraction (XRD), and the average size of ZnO nanoparticles is evaluated by transmission electron microscopy. The average size of the nanoparticles varies from 1 to 10 nm, depending on the ZnO co

In total 14 bulk atmospheric deposition collectors were distributed over the city of Lund (about 20 km~) in the south of Sweden during September 1980 to June 1981. The observations were made to investigate small-scale spatial variability of atmospheric deposition. Monthly bulk deposition samples were analyzed for CI, Ptot, Zn, Cu, and Pb.Correlation analysis shows that the spatial scale for the va

Syftet med detta examensarbete är att vidga min förståelse för färg som skapande verktyg av arkitektur i rumslighet. Studien fokuserar på olika rumsliga fenomen som kan uppkomma beroende på hur färg samspelar med objekt, ytor och rumslighet. Parallellt med detta identifieras olika verktyg och praktiseras sedan i syfte att hitta sätt för färg att vara med i den tidiga designprocessen. För att samlaThe purpose of this thesis is to broaden my understanding of color as a creative tool of architecture in spatiality. The study will focus on different spatial phenomenons that can arise depending on how color interacts with objects, surfaces and spatiality. Parallel to this, different tools will be identified and then practiced in order to find ways for color to be included in the early design pro

Coevolution occurs when species interact to influence one another's fitness, resulting in reciprocal evolutionary change. In many coevolving lineages, trait expression in one species is modified by the genotypes and phenotypes of the other, forming feedback loops reminiscent of models of intraspecific social evolution. Here, we adapt the theory of within-species social evolution, characterized by

Modehistorisk artikel om högklackade skor.