Intravascular Large B-Cell Lymphoma in Acute Hypoxic Respiratory Failure.

Intravascular large B-cell lymphoma, an extranodal large B-cell lymphoma, is a rare hematological malignancy with only a few reports of lung involvement. We report a case of intravascular large B-cell lymphoma with acute hypoxic respiratory failure and interstitial lung disease diagnosed via random skin biopsies. A 54-year-old woman presented with fever, cough, and dyspnea.

Red Luminescent Eu(III) Coordination Bricks Excited on Blue LED Chip.

Three types of red luminescent Eu(III) complexes with Schiff base and hfa ligands (hfa: hexafluoroacetylacetonate), mononuclear [Eu(hfa)(OAc)(salen)] (OAc: acetate anion, salen: N,N'-bis(salicylidene)ethylenediamine), brick-type [Eu(hfa)(OAc)(salbn)] (salbn: N,N'-bis(salicylidene)-1,4-butanediamine), and polynuclear [Eu(hfa)(OAc)(salhen)] (salhen: N,N'-bis(salicylidene)-1,6-hexanediamine) are reported for white light-emitting diode (LED) devices. Among these complexes, brick-type [Eu(hfa)(OAc)(salbn)] excited by blue light (460 nm) exhibits the photosensitized quantum yield (Φ = 47%) and remarkably high efficiency of sensitization (η = 96%). The efficiency of sensitization is caused by the excited state based on ligand-ligand interaction between the Schiff base and hfa ligands in Eu(III) complexes.

A Luminescent Dinuclear Eu /Tb Complex with LMCT Band as a Single-Molecular Thermosensor.

Temperature-dependent luminescence of a dinuclear Eu /Tb complex with a seven-coordinate structure is demonstrated. The dinuclear complex is composed of two lanthanide ions, six tetramethylheptanedionate ligands, and a bidentate phosphine oxide linker ligand. The dinuclear structure of the complex was characterized by single-crystal XRD.

Molecular Design Guidelines for Large Magnetic Circular Dichroism Intensities in Lanthanide Complexes.

Magneto optical devices based on the Faraday effects of lanthanide ion have attracted much attention. Recently, large Faraday effects were found in nano-sized multinuclear lanthanide complexes. In this study, the Faraday rotation intensities were estimated for lanthanide nitrates [Ln(III) (NO3 )3 ⋅n H2 O: Ln=Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm) and Eu(III) complexes with β-diketone ligands, using magnetic circular dichroism.

Environmental protection: researches in National Institute of Radiological Sciences.

Some studies for radiological protection of the environment have been made at the National Institute of Radiological Sciences (NIRS). Transfer of radionuclides and related elements has been investigated for dose estimation of non-human biota. A parameter database and radionuclide transfer models have been also developed for the Japanese environments.

Comparative biokinetics of radiocarbon ingested as compounds or foods in rats.

The biokinetics of radiocarbon (¹⁴C) in rats continuously ingested in the forms of amino acids (glycine and leucine) or as foods (wheat and rapeseed) were examined and compared with each other. The differences in the biokinetics between ¹⁴C-amino acids and ¹⁴C-foods were observed in the excretion of ¹⁴C in feces and in the incorporation and retention of ¹⁴C in the rat tissues. At the 10 week of continuous ingestion of ¹⁴C-amino acids, the integrated activities of ¹⁴C in all the tissues were within 5% of the ingested activity.

Effects of acute gamma-irradiation on the aquatic microbial microcosm in comparison with chemicals.

Effects of acute gamma-irradiation were investigated in the aquatic microcosm consisting of green algae (Chlorella sp. and Scenedesmus sp.) and a blue-green alga (Tolypothrix sp.

Biokinetics of radiocarbon ingested as a food in rats.

Biokinetics of radiocarbon (C) in rats during 14 wk of continuous ingestion of C-wheat was investigated to obtain the dosimetric data on organic C ingested as a food. After the start of continuous ingestion of C-wheat, the concentrations of C in both wet and dry tissues gradually increased and showed a tendency towards a steady-state condition for most of the tissues, except adipose tissue. The steady-state condition was observed at 10 wk in the majority of tissues, but was obtained at 3 wk in liver.