Introduction. Dedekind has determined all groups whose subgroups are all normal (see, e.g., [5, Theorem 12.5.4]). Partially generalizing this, Wielandt showed that a finite group is nilpotent, if and only if all its subgroups are subnormal, and also if and only if all maximal subgroups are normal [5, Corollary 10.3.1, 10.3.4]. Huppert [7, Sätze 23, 24] has shown that if all 2nd-maximal subgroup...

Relevance. The scientific discourse emphasizes the crucial role of psychological well-being individual as a resource for development, coping with difficult life situations (NT Deichert, N. Krause, FA Huppert, L.A. Golovey, L.V. Miller, E.B. Laktionova, etc.). However, no attempts have been made so far to create typology student youth, and targets individual-oriented assistance not defined depen...

The presence of salt in seawater strongly affects the melt rate and shape evolution ice, both utmost relevance ice–ocean interactions thus for climate. To get a better quantitative understanding physical mechanics at play ice melting salty water, we numerically investigate lateral an block stably stratified saline water. developing from our numerical results shows good agreement with experiment...

The excitation of internal gravity waves by fluid intrusions that propagate along the interface between a uniform upper layer and a uniformly stratified lower layer is examined by way of laboratory experiments. Intrusions are generated using a simple lock-release apparatus. Experiments are conducted in which the density gradient of the uniformly stratified layer, the density jump across the int...

Salt Effect on Trans i en t P r o t o n Transfer to So lvent and M i c r o s c o p i c P r o t o n M o b i l i t y Noam Agmon Department of Physical Chemistry and the Fritz Haber Research Center, The Hebrew University, Jerusalem 91904, Israel Sinay Y. Goldberg and Dan Huppert School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Ramat-Aviv, Tel-Aviv 69...

For an irreducible complex character χ of the finite group G, let π(χ) denote set prime divisors degree χ(1) χ. Denote then by ρ(G) union all sets and σ(G) largest value |π(χ)|, as runs in Irr(G). The ρ-σ conjecture, formulated Bertram Huppert 80's, predicts that |ρ(G)|≤3σ(G) always holds, whereas |ρ(G)|≤2σ(G) holds if G is solvable; moreover, O. Manz T.R. Wolf proposed a “strengthened” form co...

In 1998, the second author raised the problem of classifying the irreducible characters of Sn of prime power degree. Zalesskii proposed the analogous problem for quasi-simple groups, and he has, in joint work with Malle, made substantial progress on this latter problem. With the exception of the alternating groups and their double covers, their work provides a complete solution. In this article...

Induction of Virus Ribonucleic Acids in Non-permissive MSV-1F + Cells Infected with NDV. By M-F. DuBo,s and J. HUPPERT . Refractory State of Cells to Interferou Induction. By S. ROCSSET . Comparative Electrophoretic Analysis of the Virus Proteins of Four Rhabdoviruses. By J. F. OBIJESKI, A. T. MARCHENKO, D. H. L. BISHOP, B. W. CANN and F. A. MURPHY The Significance of Influenza Virus Neuraminid...

One of the complications which may be encountered during the course of therapy with antibiotics is the development of secondary infections superimposed upon the condition being treated. These superimposed infections are caused by microorganisms resistant to the original treatment and, when a fungus is responsible for the new infection, the problem becomes particularly distressing because of the...