Charge-Transfer Salts of 6,6-Dicyanopentafulvenes: From Topology to Charge Separation in Solution.

6,6-Dicyanopentafulvene derivatives and metallocenes with redox potentials appropriate for forming their radical anions form highly persistent donor-acceptor salts. The charge-transfer salts of 2,3,4,5-tetraphenyl-6,6-dicyanofulvene with cobaltocene (1⋅Cp Co) and 2,3,4,5-tetrakis(triisopropylsilyl)-6,6-dicyanofulvene with decamethylferrocene (2⋅Fc*) have been prepared. The X-ray structures of the two salts, formed as black plates, were obtained and are discussed herein.

Vasoactive Therapy in Systemic Sclerosis: Real-life Therapeutic Practice in More Than 3000 Patients.

Objective: Vasculopathy is a key factor in the pathophysiology of systemic sclerosis (SSc) and the main cause for Raynaud phenomenon (RP), digital ulcers (DU), and/or pulmonary arterial hypertension (PAH). It is so far unknown how patients with SSc are treated with vasoactive agents in daily practice. To determine to which extent patients with SSc were treated with different vasoactive agents, we used data from the German Network for Systemic Scleroderma registry.

Ambient-Pressure Synthesis of Two New Vanadium-Based Calcium Ferrite-Type Compounds: NaV1.25Ti0.75O4 and NaVSnO4.

Two new CaFe2O4-type compounds NaV1.25Ti0.75O4 (1) and NaVSnO4 (2) have been prepared at ambient pressure and temperatures < 800 °C.

New high capacity cathode materials for rechargeable Li-ion batteries: vanadate-borate glasses.

V2O5 based materials are attractive cathode alternatives due to the many oxidation state switches of vanadium bringing about a high theoretical specific capacity. However, significant capacity losses are eminent for crystalline V2O5 phases related to the irreversible phase transformations and/or vanadium dissolution starting from the first discharge cycle. These problems can be circumvented if amorphous or glassy vanadium oxide phases are employed.

Cutaneous gamma/delta T-cell lymphoma.

Only 40 cases of primary cutaneous gamma/delta T-cell lymphoma (GD-TCL) have been described. GD-TCL was included as a provisional entity in the WHO-EORTC classification of cutaneous lymphomas in 2005. GD-TCL often failed to respond to polychemotherapy and radiation therapy and have a poor prognosis with a mean survival of only 15 months.

Detection of spirochetal micro-organisms by focus-floating microscopy in necrobiotic xanthogranuloma.

Background: Necrobiotic xanthogranuloma (NXG) is a rare histiocytic disorder of unknown origin.

Objective: We conducted an investigation of skin biopsy specimens from 7 patients with NXG for the presence of Borrelia by focus-floating microscopy.

Methods: Focus-floating microscopy is a recently described, modified immunohistochemical technique in which the sections of a slide are simultaneously scanned both horizontally and vertically.

Circumscribed palmar or plantar hypokeratosis: two cases of a recently described entity of unknown origin.

Circumscribed palmar or plantar hypokeratosis is a new entity recently described by Perez et al in 2002. It seems to be underdiagnosed or clinically it is often misdiagnosed as Bowen's disease or porokeratosis. Obviously the number of case reports of circumscribed palmar or plantar hypokeratosis has increased since the first publication by Perez et al.