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Chapter and Conference Paper
Ultrafast coherent X-ray diffractive imaging with the FLASH Free-Electron Laser
High-resolution ultrafast coherent diffractive imaging has been carried out at the FLASH FEL. Reconstructed images show no effect of sample destruction. Time resolved imaging was achieved by time-delay hologra...
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Chapter and Conference Paper
Ablation of Organic Molecular Solids by Focused Soft X-Ray Free-Electron Laser Radiation
The first soft X-ray free-electron laser has recently been put into operation at DESY in Hamburg. Tunable soft X-ray coherent radiation can be generated at the FLASH (Free-electron LASer in Hamburg; formerly k...
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Chapter and Conference Paper
High intensity XUV-FEL interaction with solids: first experimental results
Results are presented of initial experiments on the interaction of ultrashort high intensity XUV pulses with solids, carried out at the XUV free electron laser facility FLASH at DESY (Hamburg).
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Article
Apoptosis in Various Organs of Preterm Infants: Histopathologic Study of Lung, Kidney, Liver, and Brain of Ventilated Infants
Apoptosis, the well-characterized form of active programmed cell death, is a physiologic phenomenon in embryonal and fetal life in develo** organs. Severe hypoxia, which occurs in most preterm infants, also ...
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Article
Familial Association of Congenital Left Heart Abnormalities and Sustained Fetal Arrhythmia
Hypoplastic left heart syndrome (HLHS) is the most common cause of death from heart disease in the first week of life. There are reports about familial concordance by presumed morphogenetic mechanisms of abno...
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Article
Friedrich Hund: Weg und Werk
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Article
On the additivity of Flicker contributions to the excess noise in quantum conductors
We investigate the quantum interference induced non-additive contribution to the excess noise due to several mobile scatters in the diffusion/cooperon approximation. For weak impurity coupling and standard ass...
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Chapter and Conference Paper
Ten Years of the Quantum Hall Effect: Development and Present State of the Theory
Shortly after the discovery of the Quantum Hall Effect had been announced /1/, a number of approaches were suggested to explain this surprising phenomenon:
The semi-phenome...
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Article
Comparison of selective cytotoxicity of alkyl lysophospholipids
Alkyl lysophospholipids have been shown to be cytooxic to a number of neoplastic tissues. One, ET-18-OCH3, has been used to selectively purge leukemic cells from mixtures with normal marrow progenitor cells,in vi...
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Chapter
Anticancer Activity and Effect on Protein Kinase C (PKC) of Synthetic Phospholipid Analogs
The discovery that alkyl-lysophospholipids (ALP), ether analogs of naturally occurring lysophosphatidylcholine (LPC) have antitumor activity has prompted the synthesis of numerous compounds which are cytotoxic...
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Article
Interdependence of the thermal properties and electronic structure of Y1Ba2CuxO y , (1.5≤x≤9) ceramics
A definite correlation between the thermal and electronic properties of Y1Ba2Cu x O y perovskite materials has been observed using differential...
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Article
Note on the quantum Hall Hamiltonian in cylinder geometry
A set of sufficient conditions is formulated for the integer quantum Hall effect to occur in a system of independent electrons in a random potential on the surface of a cylinder of finite length with perpendic...
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Article
Some remarks on variable range hop**—in particular in the quantum Hall regime
An expression for the heat conductivity κ xx is derived in the effective medium approximation. Mott type formulas are obtained for κ xx and th...
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Article
Buchbesprechungen
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Article
On the current compensation in the integer quantum Hall effect
A system of independent electrons in a random potential on the surface of a finite cylinder is considered in the presence of a perpendicular magnetic field. It is shown that the spectral stability condition wh...
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Article
Effect of low-dose dopamine infusion on urinary prostaglandin E2 excretion in sick, preterm infants
In pharmacological doses dopamine (DA) will interact with several endocrine systems and both inhibit (prolactin, thyrotropin) and enhance (renin, angiotensin) hormonal release. In this study we have examined w...
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Chapter and Conference Paper
Integer quantum hall effect
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Article
On the topological explanation of the integer quantum hall effect
We investigate the static and dynamic Kubo Hall conductivity of a non-interacting electron system in a random potential on a torus. Considering the universal covering space of the torus the Bloch theorem is ap...
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Article
Kubo Hall conductivity on a finite cylinder and the integer quantum hall effect
An additive disordered electron system on a finite cylinder with perpendicular magnetic field is considered. The inequivalent representations of the aximuthal translational group are used to derive conductivit...
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Chapter
The Role of the Pyridoxal Phosphate in Glycogen Phosphorylase b
The detailed environment of the pyridoxal phosphate (PLP) in glycogen Phosphorylase b, obtained from the 1.9Å resolution refinement of the crystal structure, is described together with a summary of the results fr...
