Validation of the Wiedemann-Franz Law in Solid and Molten Tungsten above 2000 K through Thermal Conductivity Measurements via Steady-State Temperature Differential Radiometry.

We measure the thermal conductivity of solid and molten tungsten using steady state temperature differential radiometry. We demonstrate that the thermal conductivity can be well described by application of Wiedemann-Franz law to electrical resistivity data, thus suggesting the validity of Wiedemann-Franz law to capture the electronic thermal conductivity of metals in their molten phase. We further support this conclusion using ab initio molecular dynamics simulations with a machine-learned potential.

A few-layer covalent network of fullerenes.

The two natural allotropes of carbon, diamond and graphite, are extended networks of sp-hybridized and sp-hybridized atoms, respectively. By mixing different hybridizations and geometries of carbon, one could conceptually construct countless synthetic allotropes. Here we introduce graphullerene, a two-dimensional crystalline polymer of C that bridges the gulf between molecular and extended carbon materials.

Injection Molding of Magnesium Aluminate Spinel Nanocomposites for High-Throughput Manufacturing of Transparent Ceramics.

Transparent ceramics like magnesium aluminate spinel (MAS) are considered the next step in material evolution showing unmatched mechanical, chemical and physical resistance combined with high optical transparency. Unfortunately, transparent ceramics are notoriously difficult to shape, especially on the microscale. Therefore, a thermoplastic MAS nanocomposite is developed that can be shaped by polymer injection molding at high speed and precision.

Glassomer-Processing Fused Silica Glass Like a Polymer.

Fused silica glass is one of the most important high-performance materials for scientific research, industry, and society. However due to its high chemical and thermal resistance as well as high hardness, fused silica glass is notoriously difficult to structure. This work introduces Glassomer, a solid nanocomposite, which can be structured using polymer molding and subtractive technologies at submicrometer resolution.

[The clinical and serological characteristics of early congenital syphilis today. 2].

Examinations of 207 children suffering from early congenital syphilis have revealed a lowered incidence of involvement of the bone system, liver, and spleen. Syphilitic rhinitis, chorioretinitis, and orchitis are less frequently recorded. Wassermann's test has been negative in 7.

[The clinical and serological characteristics of early congenital syphilis today. 1].

The results of examinations of 210 infants with early congenital syphilis with emphasis on skin involvement are analyzed. An increased incidence of syphilitic pemphigus was recorded along with decreased incidence of diffuse infiltration and papular elements.

[A case of pathomimesis].

Pathomimesis (skin artefacts, Munchausen syndrome, artificial dermatitis, etc.) is an artificial deficiency of the skin and it is referred to a group of psychosomatic disorders, evidencing affective and in some cases paranoiac delirium disturbances. A case of this condition is described.

[Electron microscope study of the plasmid DNA from various strains of Treponema pallidum].

Electron microscopic investigation and electrophoretic analysis of DNA from two cultural strains of pale treponemes (Treponema pallidum VIII and Treponema pallidum Reiter) allowed us to identify the circular molecules of plasmid DNA their size evaluated as 7 to 8 MD. Side by side with the molecules of this size the electron microscopic pictures of the plasmid DNA of both strains of pale treponemes show small superspiralized molecules of plasmid DNA. According to electrophoretic data the size of this DNA is evaluated as two thousand base pairs.

[The effect of micro-fields of magnetically ordered media on Treponema pallidum].

A new phenomenon has been revealed: deactivation of pathogenic T. pallidum under the effect of intensified static magnetic field of film domain structures. The mechanism of action of an artificial magneto-regulated environment on T.

[The effect of magnetoregulated microfields on Treponema pallidum. 2].

The authors proceed with their studies of magnetic microfields detected round T. pallidum and of the interactions of these fields with the biologic objects round the treponemas; these studies will prompt approaches to physiotherapeutic management of infectious diseases, making use of a new (for medicine) source of physical fields. They have revealed that T.

[Effect of microfields of magnetically aligned media on Treponema pallidum. 1].

An end ferromagnetic masking of T. pallidum has been revealed; this phenomenon appears to help the bacterium orientation in human body under the effects of both the external electromagnetic fields and the internal sources of such fields in the body. The studies have demonstrated the primary physicochemical mechanism of the magnetic field action of T.