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Algebraic dependence of commuting elements in algebras

The aim of this paper to draw attention to several aspects of the algebraic dependence in algebras. The article starts with discussions of the algebraic dependence problem in commutative algebras. Then the Burchnall-Chaundy construction for proving algebraic dependence and obtaining the corresponding algebraic curves for commuting differential operators in the Heisenberg algebra is reviewed. Next

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A frequency synthesizer applied to a 10/100Base-T ethernet transceiver is described. It can work adaptively in either a 10Mbps or 100Mbps mode and convert freely from on mode to another. Cascode current sources and differential delay cells are adopted to guarantee good performance. The circuit meets the requirements of both transmitter on rising/falling time and receiver on CDR so that additional

I sekulariseringens skugga. Manlighet och religiös tematik i svensk och amerikansk 1920-talsfilm

There existed a great ambivalence concerning masculinity and its relationship to religion in the decades around the last turn of the century. The historical encoding process of religion, from gender neutral to feminine, have in general been interpreted as something solely negative for the constitution of masculinity during this period. Consequently, religious encoded masculinities have been deemed

När gamla texter talar. Om att tolka det förgångna

This article is based on the author’s inaugural lecture as professor of New Testament studies at Lund University and articulates his view of the hermeneutics of text and history by reference to the notion of memory. The old veneration of Mnēmosynē and her daughters Clio and Polyhymnia indicates the close and yet complex relationship between historical truth and persuasion and points to the decisiv

Meanings as Conceptual Structures

Cognitive semantics relates linguistic expressions to conceptual structures. The purpose of this paper is to present a framework for such a cognitive structure. As a preparation, Putnam's argument against intensional semantics as a theory of meaning is presented. Some of the main tenets of cognitive semantics as it has developed during the last years are outlined. The notion of a conceptual space

Hemiparasitic litter additions alter gross nitrogen turnover in temperate semi-natural grassland soils

Hemiparasitic plants accumulate nutrients in their leaves and therefore produce high-quality litter with faster decomposition and nutrient release rates compared to non-parasitic litter. Higher levels of plant-available nitrogen (N) in the presence of hemiparasitic plants have been attributed to this 'litter effect', but effects on N dynamics in the soil remain unstudied. We tested the hypothesis

Daily physical activity related to aerobic fitness and body fat in an urban sample of children.

This study evaluates associations between objectively measured daily physical activity vs aerobic fitness and body fat in children aged 8-11 years. A cross-sectional study of 225 children aged 7.9-11.1 years was performed. Abdominal fat mass (AFM) and total body fat (TBF) were quantified by dual-energy x-ray absorptiometry. TBF was calculated as percentage of total body mass (BF%). Body fat distri

Allocation of Heterogeneous Resources of an IoT Device to Flexible Services

Internet of Things (IoT) devices can be equipped with multiple heterogeneous network interfaces. An overwhelmingly large amount of services may demand some or all of these interfaces’ available resources. Herein, we present a precise mathematical formulation of assigning services to interfaces with heterogeneous resources in one or more rounds. For reasonable instance sizes, the presented formulat

Microsatellite primers in the planktonic diatom Pseudo-nitzschia multistriata (Bacillariophyceae)

Premise of the study: Seven microsatellite loci were characterized for the toxic diatom Pseudo-nitzschia multistriata Takano (Takano) to investigate intraspecific variability and estimate population genetic structure over blooms, seasons, and sexual and vegetative reproduction. Methods and Results: Selected microsatellites consisted of di- and trinucleotide repeats in the core region, and showed