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The placenta must not only provide nutrients and take care of fetal waste products, it also needs to protect the fetus from maternal immunological attacks while at the same time transmitting maternal immunoglobulins to ensure protection against infectious agents.
It is argued that evolution goes beyond that which can be described in a well-defined language) and that it instead enforces a language that is itself evolving. Evolution is the unfolding of this self-reference. The unfolding methodology of the logician Alfred Tarski is taken as a basis for the explicability of evolution. Looking at Tarski´s results as a linguistic complementarity, we get a view w
The aim of this study was to analyze the MRI findings and assess the prevalence of different associated structural abnormalities in children with scoliosis and to determine if the age of onset is a possible indicator of intraspinal pathology. This is a retrospective analysis of 663 consecutive MR examinations (319 patients). Thirteen patients with known intraspinal tumors were excluded and a total
A comparison between the narrative technique of the ancient Greek novel, 'The Aethiopica' by Heliodorus, and Sigrid Combüchen´s modern tale 'Parsifal'.
Sigrid Combüchen is a Swedish writer, born in Germany 1943, a european 'war child'. Her tale Parsifal (1998) gives perspective of the perils in European history. She uses a historical, mythical and contemporary narrative in a genuinely
Swedish subordinate clauses introduced by 'att' are syntactically and semantically ambiguous when they do not contain clause level adverbials or topicalized elements. In this study, evidence that such clauses are disambiguated in their prosodic realization is presented.
Lipoteichoic acid from Staphylococcus aureus was a potent inducer of procoagulant activity in isolated mononuclear cells but not in whole blood. In contrast, staphylococcal peptidoglycan showed equal levels of potency in isolated mononuclear cells and whole blood, suggesting that peptidoglycan is an important inducer of procoagulant activity in severe sepsis involving gram-positive bacteria.
Functionally distinct subsets within the T-helper (CD4+) cell population have been described in man, rat and mouse. We have shown previously that the CD4+ 45R- human lymphocytes are producers of IL-2 within 24 hr of polyclonal stimulation and are the major interferon (IFN) producers. The mAbs 4B4 (CDw29) and Leu 8 (p80) are here used together with Leu-18 (CD45R) to characterize the subpopulations
Protein D, a surface-exposed 42-kDa membrane lipoprotein, is well conserved among both type b and nontypeable Haemophilus influenzae strains, and it is considered a vaccine against H. influenzae infections. Here, we report the large-scale purification of a nonacylated form of protein D (PDm) from the periplasmic space of Escherichia coli overexpressing PDm. Screening of human sera for levels of an
Dampness in buildings has been linked to adverse health effects, but the specific causative agents are unknown. Mycotoxins are secondary metabolites produced by molds and toxic to higher vertebrates. In this study, mass spectrometry was used to demonstrate the presence of mycotoxins predominantly produced by Aspergillus spp. and Stachybotrys spp. in buildings with either ongoing dampness or a hist
