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The subject of this paper is to calculate the fields in a layered earth induced by a current distribution. A general formulation is presented, which contains very few restrictions of the current distribution. For the simplest current distributions (dipole, circular, and rectangular loops) we derive expressions for the fields, which contain a single integral (Sommerfeld type). Numerical computation
Since the latest update of the checklist on bees known from Denmark, the following three species have been added as new to the country: Colletes halophilus Verhoeff, 1943 (Colletidae), Nomada obscura Zetterstedt, 1838 (Apidae) and Xylocopa violacea (Linnaeus, 1758) (Apidae). The national checklist hereby includes 286 bee species, but more species will probably be found in the future, as the wild b
Selective vulnerability in the nervous system refers to the fact that subpopulations of neurons in different brain systems may be more or less prone to abnormal function or death in response to specific types of pathological states or injury. The concept has been used extensively as a potential way of explaining differences in degeneration patterns and the clinical presentation of different neurod
The increasing rate of caesarean delivery is a worldwide concern. A major contributor to this evolution has been a concomitantly decline in vaginal birth after caesarean, because of the risk of intrapartum uterine rupture, which is a rare but potentially catastrophic complication of a trial of labour after caesarean (TOLAC). On the other hand, elective repeat caesarean is associated with surgical
OBJECTIVE: To investigate the relationships between physical performance, quality of life (QoL), and social participation among elderly men and women with a history of osteoporosis-related fractures. METHOD: The study was a population-based cross-sectional study including 155 participants aged 60 to 93 years from the Swedish longitudinal investigation, "Good Aging in Skåne." The participants had s
Short review of a new Swedish edition of "Notes sur le cinématograph" by French filmmaker Robert Bresson (1975).
A 12-bit 125-MHz digital-to-analog converter (DAC) for communication application is designed. It is based on current-steering segmented architecture and modified Q2 random walk switching scheme to obtain 12-bit accuracy. A new voltage swing reduced driver (VSRD) is implemented to promote the dynamic performance. The DAC uses 0.18 µm 1.8 V standard digital CMOS technology. The die area (core) is 2.
This paper is based on the findings of a research work by Abukhader and Jönson (2004a), who discuss the possibilities and limitations of the ties of postponement strategy in food supply chains. They identified the cases/examples (i.e. company cases) of application of postponement across the various categories of foods: frozen, chilled/fresh and long shelf life. The food industry nowadays is in nee
Apolipoprotein E (ApoE), a cholesterol transporter and an immunomodulator, is brain protective after experimental stroke and implicated in brain repair. Here, we study the involvement of ApoE in the restoration of brain function after experimental stroke, by using animal housing conditions that differentially improve recovery after occlusion of the middle cerebral artery occlusion (MCAO). We found
Fixed binary convolutional codes are considered which are simultaneously optimal or near-optimal according to three criteria: namely, distance profiled, free distanced_{ infty}, and minimum number of weightd_{infty}paths. It is shown how the optimum distance profile criterion can be used to limit the search for codes with a large value ofd_{infty}. We present extensive lists of such robustly optim
To confirm findings from a previous pilot study in a larger normal cohort and to study first trimester maternal serum levels of cell-free fetal hemoglobin (HbF) and the heme-scavenger α1-microglobulin (A1M) in patients who subsequently developed preeclampsia (PE), furthermore to evaluate these proteins as predictive biochemical markers of PE.
