Seasonal Disparities of Human Health Risk and Particle-Bound Metal Characteristics Associated with Atmospheric Particles in a Fishery Harbor.

The effects of atmospheric pollution from ship emissions have been considered for several harbors worldwide. The health risk assessment and source apportionment of particle-bound metals in a fishery harbor were investigated in this study. The most abundant metal elements in particulate matter (PM) on all sampling days in three seasons were Fe (280.

Redox Interconversion of Non-Oxido Vanadium Complexes Accompanied by Acid-Base Chemistry of Thiol and Thiolate.

The redox nature of the non-oxido vanadium sulfur center is associated with several biological systems such as vanadium nitrogenase, the reduction of vanadium ion in ascidians, and the function of amavadin, which is a vanadium(IV) natural product contained in Amanita mushrooms. But the related chemistry is less explored and understood compared to oxido vanadium species due to the oxophilic character of high valent vanadium ions. Herein, we present a class of non-oxido vanadium thiolate complexes, [V(PS2″S)] (1) (PS2″S = [P(CH-3-MeSi-2-S)(CH-3-MeSi-2-SH)]), [V(PS3″)(PS2″S)] (2) (PS3″ = [P(CH-3-MeSi-2-S)]), [V(PS3″)] (3), [V(PS3″)(PS2″S)] (4), and [V(PS3*)] (5a) (PS3* = [P(CH-3-Ph-2-S)]), and study their interconversion through the redox and acid-base reactions.

[The aesthetic character of caring knowledge].

The identity of nursing is founded on caring knowledge, which is derived from our understanding of its experience-revealed essence. This purposive knowledge differs from scientific knowledge because validity guides the latter and ethics guides the former. Therefore, justifying the objectivity of caring knowledge should be based on the aesthetic character of this knowledge rather than on a general social-science explanation.