Visibility of LED Blocks Mounted on Crosswalk Boundaries for low Visual Capacity.

According to the WHO, about 80% of visually impaired persons in the world are with low visual capacity. It is considered that LVs' safe independent mobility will be improved as employing Tactile Walking Surface Indicators (TWSIs). In the night, guidelines for constructing warning blocks, a kind of tactile surface indicator, have not been well established.

Sarcoidosis complicated with major pulmonary artery obstruction and stenosis.

A 34-year-old woman with bilateral pulmonary infiltrates was diagnosed with sarcoidosis. She refused corticosteroid treatment despite a worsening of the pulmonary infiltrate, and thereafter developed dyspnea following hemoptysis 6 years later. The upper lobe branches of the pulmonary artery were obstructed and the left main pulmonary artery was narrowed by mediastinal soft tissue, thus complications of granulomatous mediastinitis and fibrosing mediastinitis were suspected.

Dehydrocoupling reactions of borane-secondary and -primary amine adducts catalyzed by group-6 carbonyl complexes: formation of aminoboranes and borazines.

Photoirradiation of a solution of BH(3).NHR(2) (1a: R = Me, 1b: R = 1/2C(4)H(8), 1c: R = 1/2C(5)H(10), 1f: R = Et) containing a catalytic amount of a group-6 metal carbonyl complex, [M(CO)(6)] (M = Cr, Mo, W), led to dehydrogenative B-N covalent bond formation to produce aminoborane dimers, [BH(2)NR(2)](2) (2a-c, f), in high yield. During these reactions a borane sigma complex, [M(CO)(5)(eta(1)-BH(3).

Phosphasilaferracyclopropane: an activator of small molecules having polarized single, double, and aromatic unsaturated bonds.

Irradiation of Cp*(CO)2FeSiMe2PPh2 resulted in the formation of phosphasilaferracyclopropane 2, which readily reacted with small organic molecules with polarized bonds to yield 3-5.

Reversible cleavage and recombination of an acetylenic carbon-carbon bond on a tetrairon cluster coupled with a two-electron redox reaction.

Two-electron reduction of [(eta5-C5H4Me)4Fe4(mu3-CH)2(mu3-CO)2](PF6)2 (1) results in the coupling of two methylidyne ligands to form (eta5-C5H4Me)4Fe4(HCCH)(mu3-CO)2 (2), the two-electron oxidation of which reproduces 1. Structures of 1 and 2 were determined by X-ray diffraction analysis.

Synthesis and structures of one- and two-electron oxidized forms of bis(acetylene)tetrairon clusters Cp'(4)Fe(4)(HCCH)(2) (Cp' = Cp, eta5-C(5)H(4)Me).

Air-oxidation of Cp'(4)Fe(4)(HCCH)(2) (Cp' = Cp (1a), C(5)H(4)Me (1b)) in an NH(4)PF(6)/CH(3)CN solution afforded the one-electron oxidized clusters [Cp'(4)Fe(4)(HCCH)(2)](PF(6)). Oxidation of 1a with excess AgBF(4) in THF afforded [1a](BF(4)), while that of 1b with excess AgBF(4) gave [1b](BF(4))(2). The X-ray crystal structure analysis of [1a](BF(4)) revealed that the monocationic cluster retains the butterfly-type Fe(4)(mu4-eta(2):eta(2):eta(1):eta(1)-HCCH)(2) framework similar to that of the neutral cluster.

Synthesis of silylene and silyl(silylene)metal complexes.

In 1987, two research groups published the first-ever reports on the synthesis of silylene complexes and presented structural evidence. Since then, a range of synthetic methods have been developed and a number of silylene complexes have been prepared. In 1988, we reported on the first base-stabilized bis(silylene) complexes that can be regarded as being masked silyl(silylene) complexes.

Formation of Isomeric Tetrathiotungstate Clusters [{Cp*Ru(CO)} (WS ){W(CO) }] by the Reaction of [Cp Ru S ] with [W(CO) (MeCN) ].

Thermal and photochemical interconversion occurs between the isomeric pair of tetrathiotungstate [WS ] clusters 1 and 2, which were formed by thermolysis of [Cp Ru S ] and [W(CO) (MeCN) ] [Eq. (1)] and then structurally characterized. During synthesis, a dramatic redistribution of ligands between the Ru and W atoms takes place without the loss of any CO and S ligands.