Possibility of existence of pseudoferroelectric state in cells: Some experimental evidence

The possibility of existence of a pseudoferroelectric state in reproducing cells has been experimentally observed. The experiment based on dielectrophoresis of cellular origin shows that reproducing cells attract the highly polarizable particles more than the poorly polarizable particles. The preferential attraction of particles can be explained when one considers cells as a dipole oscillator.     

Trennung von Spaltprodukten durch Extraktionschromatographie

The performance of columns to be used for separations of fission products by extraction chromatography was studied as a function of the loading of the support with extractant, of the flow rate and the temperature of the elutriant. Separations of molybdenum-technetium, antimony-tellurium, zirconium-niobium and thorium-protactinium were used as examples to prove the effectiveness of this method.

---

---

Aus einer Dissertation, Mainz 1967     

On second-order thermoelastic effects

Zusammenfassung Grundbeziehungen einer Theorie der Wärmespannungen zweiter Ordnung werden aufgestellt, indem thermische Einflüsse inBiots Elastizitätstheorie zweiter Ordnung einbezogen werden, oder, was dasselbe ist, indem Glieder zweiter Ordnung in lineare Beziehungen einer Wärmespannungstheorie einbezogen werden, in einer Formulierung, die wiederum vonBiot vorgelegt wurde. Diese Grundbeziehungen werden dazu benützt thermische Einflüsse zu untersuchen, die eine einfache Schubverschiebung, reine Schubverzerrung und reine Schubspannung begleiten, und auch um mögliche isotherme Spannungs-und Verzerrungszustände zu finden.     

On Metal-Atom Clusters IV. Photoionization thresholds and multiphoton ionization spectra of alkali-metal molecules

The investigation of electronic and structural parameters of metal molecules as a function of size may be decisive for understanding and control of heterogeneous catalysis with finely divided metals. Metal-atom clusters can be prepared by several methods, most of which yield a molecular mixture only. Expansion of an atomic vapour into vacuum through a supersonic nozzle creates a complex cluster-spectrum which has been investigated by photoionization using a mass-spectrometer as selective detector. Broad band single photoionization ( PI. ) yields the abundances and ionization thresholds for Na_x(x?16), K_x(x?12) and Na_xK_y(x+y?6). Rough indications about other deactivation channels of excited alkali-molecules are obtained from an analysis of the photoionization efficiency (PIE.) curves. Two-photon PIE. curves with narrow-band (laser) light sources give an accurate photoionization threshold value and detailed information on ionization processes. Two-photon ionization spectra via a real intermediate state reached by laser excitation are equivalent to normal absorption spectra, if the exciteation step is controlled by the true transition probabilities. By investigation of the power dependence of the ion current of Na as a function of the wavelength of the tunable cw dye laser (excitation) and of the ionizing Ar⁺- or Kr⁺-laser, conditions under which true spectra are obtained have been clarified, in good agreement with a photon-kinetic model of the processes involved. Vibronic and rovibronic spectra of several transitions in Na₂ and K₂ have been measured. Similarly a spectrum of Na₃ has been determined mass-selectively. The scope of the new method for an absorption spectroscopy in molecular beams is discussed.