Significance and advantages of Orap in the ambulatory care of schizophrenic psychoses

The authors report clinical experience from therapy with Orap-Janssen and Orap-Richter from 1968 to 1974. Excellent tolerance makes Orap particularly suitable for long-term maintenance therapy in schizophrenic psychoses. The evaluation is based on observations in 91 patients.     

Konzentrationsabhängigkeit von Lösungswärmen und Lösungsentropien in metallischen Legierungen

Beschreibung der gemessenen Konzentrationsabhängigkeit isothermischer Gaslöslichkeiten durch Potenzreihen. Darstellung der Konzentrationsabhängigkeit des Wirkungskoeffizienten f³₂ sowie der Temperaturabhängigkeit des Wirkungsparameters ?³₂ im Mischlösungsmittel 1—3. Angabe von Gleichungen für die Wasserstofflöslichkeit in binären Nickel-Eisen-, Nickel-Kobalt-, Nickel-Kupfer- und Nickel-Chrom-Legierungen in Abhängigkeit von Druck, Temperatur und Konzentration. Verlauf von Lösungswärmen und Lösungsentropien von Wasserstoff in den angegebenen festen und flüssigen Legierungen.     

Domain-wall superconductivity in superconductor-ferromagnet hybrids

Superconductivity and magnetism are two antagonistic cooperative phenomena, and the intriguing problem of their coexistence has been studied for several decades. Recently, artificial hybrid superconductor-ferromagnet systems have been commonly used as model systems to reveal the interplay between competing superconducting and magnetic order parameters, and to verify the existence of new physical phenomena, including the predicted domain-wall superconductivity (DWS). Here we report the experimental observation of DWS in superconductor-ferromagnet hybrids using a niobium film on a BaFe(12)O(19) single crystal. We found that the critical temperature T(c) of the superconductivity nucleation in niobium increases with increasing field until it reaches the saturation field of BaFe(12)O(19). In accordance with the field-shift of the maximum value of T(c), pronounced hysteresis effects have been found in resistive transitions. We argue that the compensation of the applied field by the stray fields of the magnetic domains as well as the change in the domain structure is responsible for the appearance of the DWS and the coexistence of superconductivity and magnetism in the superconductor-ferromagnet hybrids.     

Liquid-Phase Sintering: Are Liquids Squeezed Out from Between Compressed Particles?

Application of a theory developed for plates that sandwich a liquid layer to spherical particles which undergo liquid phase sintering shows that although the thickness of the liquid layer decreases with time, a finite thickness will always remain between the particles within any experimental time frame as long as the liquid perfectly wets the solid.     

Stengthening of polyphase Si3N4 materials through oxidation

Specimens of various polyphase Si₃N₄ materials fabricated in the Si-Mg-O-N system, and a commercial Si₃N₄ material were subjected to oxidation treatments prior to flexural strength determinations at 1400° C. It was demonstrated that a pre-oxidation treatment could significantly improve the high-temperature strength. The compositional change induced by oxidation which can decrease the volume fraction of the viscous phase present in these materials at high temperatures is believed to be responsible for the observed strengthening.     

Crack extension and arrest in contact stress fields

Sudden crack extension and arrest is observed when indenters are pressed into the surface of brittle materials. The energetics of this system are examined. Crack extension is defined by a condition of decreased free energy (after A. A. Griffith) and crack arrest is defined by a condition of increased free energy with a further increase in crack size. The analysis shows that the critical stress required for crack extension depends on the dimension of the stress field and other factors, viz., crack size and material properties, usually associated with Griffith's fracture equation. The dependence on the dimension of the stress field explains Auerbach's empirical law which shows that the apparent strength of a brittle material increases with the decreasing size of the contact stress field. Experimental observations for hot-pressed Si₃N₄ and SiC are presented to examine this size effect and its predicted relation to material properties.     

What can modern statistics offer imaging neuroscience?

This paper presents a mixed-effects model, region-of-interest analysis of a longitudinal functional magnetic resonance imaging (fMRI) study of drug effects on human memory function. A key region of interest is the human hippocampus, affected by brain disorders such as Alzheimer's disease and schizophrenia. A brief section on human hippocampal cell microscopy complements the discussion of the macroscopic fMRI study. Statistical issues confronted in these two applications are then placed in a broader context for further discussion of the future roles of biostatisticians and our methods in the fertile intersection of applied mathematical abstraction and imaging neuroscience. Neuroscientific and fMRI background is provided for readers new to either area.     

Multisensory recognition of actively explored objects.

Shape recognition can be achieved through vision or touch, raising the issue of how this information is shared across modalities. Here we provide a short review of previous findings on cross-modal object recognition and we provide new empirical data on multisensory recognition of actively explored objects. It was previously shown that, similar to vision, haptic recognition of objects fixed in space is orientation specific and that cross-modal object recognition performance was relatively efficient when these views of the objects were matched across the sensory modalities (Newell, Ernst, Tjan, & Bülthoff, 2001). For actively explored (i.e., spatially unconstrained) objects, we now found a cost in cross-modal relative to within-modal recognition performance. At first, this may seem to be in contrast to findings by Newell et al. (2001). However, a detailed video analysis of the visual and haptic exploration behaviour during learning and recognition revealed that one view of the objects was predominantly explored relative to all others. Thus, active visual and haptic exploration is not balanced across object views. The cost in recognition performance across modalities for actively explored objects could be attributed to the fact that the predominantly learned object view was not appropriately matched between learning and recognition test in the cross-modal conditions. Thus, it seems that participants naturally adopt an exploration strategy during visual and haptic object learning that involves constraining the orientation of the objects. Although this strategy ensures good within-modal performance, it is not optimal for achieving the best recognition performance across modalities. (PsycINFO Database Record (c) 2010 APA, all rights reserved)