Search results

The geometry of several realistic models of the metal coordination sphere in the blue copper proteins has been optimised using high-level quantum chemical methods. The results show that the optimal vacuum structure of the Cu(II) models is virtually identical to the crystal structure of oxidised blue copper proteins. For the reduced forms, the optimised structure seems to be more tetrahedral than t

Plants sense and integrate a variety of signals from the environment through different interacting signal transduction pathways that involve hormones and signaling molecules. Using ALTERNATIVE OXIDASE1a (AOX1a) gene expression as a model system of retrograde or stress signaling between mitochondria and the nucleus, MYB DOMAIN PROTEIN29 (MYB29) was identified as a negative regulator (regulator of a

The US Office of the Director of National Intelligence recently released its annual threat assessment, in which Iran is mentioned no fewer than 60 times as part of a “diverse array of threats” facing the US. Iran is moving toward its goal of full domination of Iraq and the expulsion of the last remaining US forces from that country, a result that would represent a great success for the Islamic Rep

The human kallikrein-related peptidase 4 (KLK4) and the transcribed pseudogene KLKP1 are reported to be highly expressed in the prostate. When trying to clone transcripts of KLKP1, we partly failed. Instead, we identified an androgen-regulated transcript, KLK4T2, which appeared to be a splice variant of KLK4 that also contained exons of KLKP1. Expression analysis of KLK4, KLK4T2, and KLKP1 transcr

RATIONALE: Interferon-gamma (IFN-gamma) is of central interest in the study of tuberculosis. A number of single-gene mutations have been identified in the IFN-gamma signaling pathway that predispose to severe mycobacterial disease, but the relevance of polymorphism within these genes to the common phenotype of tuberculosis remains unclear. METHODS: A total of 1,301 individuals were included in a l

Introduction: The timed 'Up & Go' (TUG) is a performance test identifying problems in functional mobility. More knowledge on how the type of chair used influences test results is needed. Objective: To investigate inter-rater agreement on the time score and to assess if chair type used influenced the performance of the test. Setting: (1) Inter-rater agreement investigation on the time score was

The aim of this study was to evaluate the understanding of the term central terminal (CT) and to consider the consequences of this level of understanding. A total of 150 questionnaires was distributed during the 30th International Congress of Electrocardiology 2003, Helsinki, Finland; 42 (28%) of the anonymous questionnaires returned were considered adequate for the purpose of this study. The ques

In astrophysics, the ‘Goldilocks Zone’ describes the circumstellar habitable zone, in which planets, sufficiently similar to Earth, could support human life. The children’s story of Goldilocks and the Three Bears, one of the most popular fairy tales in the English language, uses this metaphor to describe conditions for life that are neither too hot nor too cold and neither too close to the sun nor

In this commentary, I will review the latest findings on the Bicoid (Bcd) morphogen in Drosophila, a paradigm for gradient formation taught to biology students for more than two decades. "Seeing is believing" also summarizes the erroneous steps that were needed to elucidate the mechanisms of gradient formation and the path of movement of Bcd. Initially proclaimed as a dogma in 1988 and later incor

The existence of a uniform phase at the alveolar surface is demonstrated by polarizing microscopy and cryogenic transmission electron microscopy (cryo-TEM). Rabbit lungs were opened and the alveolar surface film was directly deposited on optical microscope coverslips and on electron microscope grids. In the polarizing microscope, the alveolar surface material deposited exhibits a uniform birefring

This article compares the articulation of dental stops by two subjects, one Swedish and one British English. The articulations are studied on X-ray motion films and the spectral consequences are studied on spectrograms. Speakers of Swedish are very conscious of a difference in pronunciation of dental stops and hear it as a typical part of an English accent in Swedish. The traditional Swedish expla

Despite of the ambitious aim of the ATAD, the adverse effect of double taxation caused by the implementation of it is unsolved. It is therefore up to taxpayers to solve the conflict of norms by identifying the correct source of law for eliminating double taxation. The thesis focuses on the double taxation caused by the implementation of ATAD and identifying the correct source of law, if possible,