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Cubomedusae, or box jellyfish, have the most elaborate visual system of all cnidarians. They have 24 eyes of four morphological types, distributed on four sensory structures called rhopalia. Box jellyfish also display complex, probably visually guided behaviors such as obstacle avoidance and fast directional swimming. Here we describe the strikingly complex and partially bilaterally symmetrical ne
Dispersion coefficients for turbulent flow are commonly available, but the common models are not easily implemented for fast computation of dispersion in time-dependent large flow systems. Criteria were developed to aid in the choice of parameters for a model combining plug flow with the N-continuously stirred-tanks model to obtain the best agreement with the pure axial-dispersed plug-flow model,
Popular Abstract in Swedish Hjärt-kärlsjukdomar har varit de dominerande orsakerna till sjukdom och död i västvärlden sedan decennier. Insjuknande i hjärtinfarkt och slaganfall beror bl.a. på åderförkalkning och blodproppsbildning. Åderförkalkning är en sjukdomsprocess som börjar i pulsådrornas kärlväggar åratals innan insjuknandet i infarkt eller slaganfall inträffar. Förhindrandet av första insjThe importance of studying cardiovascular disease before the process leads to hard end-points has been recognised, and methods to quantify early atherosclerosis have been taken in use in many research centres around the world. An ultrasound method with a computer assisted image analysing system was developed in co-operation with the Wallenberg Laboratory for Cardiovascular Research and Chalmers Un
Good decision-making relies on accurate, timely and reliable information. This can be supported by having intelligent packaging which allows data on the whereabouts and condition of goods to be automatically captured along a supply chain. This research reveals that, although interest in intelligent packaging in Swedish manufacturing industries is high, actual use is limited. Nevertheless, this res
This paper presents the development as well as the architecture of a computer-aided dedicated fixture design system intended to support the design of lightweight (carbon fiber composite) grippers for a major truck company. Lightweight grippers were required due to the increasing production rates in the automotive industry. The current robotic equipment was facing diverse problems during transporta
In this paper we present a new method for high-level synthesis that enhances design flexibility, specialization and performance primarily conceived for programmable hardware. New programmable hardware devices often provide fast dedicated components that perform complex computations. Arbitrary complex computations can be efficiently extracted from the CDFG using our new graph matching constraint to
Previous studies using echocardiography in healthy subjects have reported conflicting data regarding the percentage of the stroke volume ( SV) of the left ventricle ( LV) resulting from longitudinal and radial function, respectively. Therefore, the aim was to quantify the percentage of SV explained by longitudinal atrioventricular plane displacement ( AVPD) in controls, athletes, and patients with
A mobile lidar (light detection and ranging) system for environmental monitoring is described. The optical and electronic systems are housed in a truck with a retractable rooftop transmission and receiving mirror, connected to a 40-cm-diameter vertically looking telescope. Two injection-seeded Nd:YAG lasers are employed in connection with an optical parametric oscillator-optical parametric amplifi
The possibility of using carriers made of recycled glass in anaerobic packed bed reactors has been studied in laboratory-scale experiments. Two types of carrier were studied: a porous bead of glass foam and an open ring of a smoother, sintered glass. The performance of processes with these carriers was compared with a conventional upflow anaerobic sludge blanket (UASB) process. The treatment of wa
The aim of this study was to model the effect of short (3 year) treatments for osteoporosis at different times after menopause on the risk of osteoporotic fracture and to assess the impact of strategies to target high-risk individuals. Treatment efficacy for hip, proximal forearm, shoulder, and spine fracture were computed from the relationship between bone mineral density (BMD) and fracture in wo
Diagnosis of primary hepatocellular carcinoma (HCC) at early stages has obviously been improved since determination of serum levels of free alpha-fetoprotein (AFP) was implemented. AFP has been considered as the standard tumor marker of primary HCC, although certain patients have very low serum free AFP levels. In the present study, clinical application of measuring serum AFP-IgM immune complexes
This report identifies a set of policy lessons for China today drawn from the experience of financial deregulation, financial crisis, and recovery in Scandinavia during the period 1985-2000. Although there are considerable differences between the huge Chinese economy and the small Nordic countries, there are enough similarities to make lesson-drawing a worthwhile exercise. Based on the Scandinavia
Proton exchange between titratable amino acid residues and the surrounding solution gives rise to exciting electric processes in proteins. We present a proton titration scheme for studying acid-base equilibria in Metropolis Monte Carlo simulations where salt is treated at the Debye-Huckel level. The method, rooted in the Kirkwood model of impenetrable spheres, is applied on the three milk proteins
Moving towards an ecologically sound society requires strong support from higher educational institutions. During the past decade, the Journal of Cleaner Production has published more than 150 articles that have highlighted advances in academic efforts on sustainability in higher education, that were focused upon education, research, outreach and greening of campus operations in universities from
The cysteine proteases are enzymes found in every kingdom of life. Clan CA is the largest of the cysteine protease clans, with members all displaying a Cys/His/Asn(Asp) catalytic triad responsible for hydrolysing the peptide bond within the substrate. To regulate the activity of the proteases, another group of proteins act as natural inhibitors (cysteine protease inhibitors) and bind to the protea
Popular Abstract in Swedish Under 1900-talet har stora förändringar skett i synen på buddhistisk meditation. Från att ha varit en övning som bara ägt rum på kloster och bland ett fåtal munkar, har både ordinerade lärare och lekmannalärare börjat lära ut meditation till lekfolk. Meditation har kommit att framställas som själva hjärtat i buddhistiska traditioner, och som det element som kan isolerasThe purpose of this study is to investigate how a religious tradition changes when transposed to a new context: how it is received and incorporated in its new context and how individuals in Sweden perceive and make use of this tradition. This is done by highlighting the development of insight meditation, Vipassana, and more specifically, the Burmese practice lineage originating from the Burmese la
The subject of this thesis is theoretical examination of freezing phenomena inside fire sprinkler systems during activation at low temperatures in the surroundings. Many sprinkler systems are installed in environments such that they must be operable at subfreezing temperature conditions. During activation of such a system, water is assumed to penetrate a significant distance and without interrupti
Transformation-based learning (TBL) is a machine learning method for sequential classification, invented by Eric Brill (1993, 1995). It is widely used within natural language processing (but surprisingly little in other areas). TBL is a simple yet flexible paradigm, which achieves competitive or even state-of-the-art performance in several areas and does not overtrain easily. It is especially suc
?SEPARATE WORLDS?. School librarians teaching in information seeking in high school. The aim of this Master's thesis is to study how information seeking is taught in high school and how school librarians describe their experiences of teaching information seeking. Five school librarians from five different high schools (gymnasium) in Skåne participated in the study. The empirical data derives
