Evidence for zero-field slow magnetic relaxation in a Co(II) complex with a pseudo-tetrahedral NI environment.

Herein, we report on the synthesis, structure and magnetic properties of a four-coordinate mononuclear Co(II) diiodide complex with the 3,5-dimethylpyrazole ligand. A distorted tetrahedral local coordination environment around the central cobalt ion is formed by the two nitrogen atoms of two monodentate pyrazole ligands and by iodide ions. Direct current (dc) magnetic measurements in combination with SA-CASSCF/NEVPT2 quantum-chemical calculations revealed a strong easy-axis-type magnetic anisotropy with a record value = -30.

Stable isotope composition (δ(13)C and δ(15)N values) of slime molds: placing bacterivorous soil protozoans in the food web context.

Rationale: Data on the bulk stable isotope composition of soil bacteria and bacterivorous soil animals are required to estimate the nutrient and energy fluxes via bacterial channels within detrital food webs. We measured the isotopic composition of slime molds (Myxogastria, Amoebozoa), a group of soil protozoans forming macroscopic spore-bearing fruiting bodies. An analysis of largely bacterivorous slime molds can provide information on the bulk stable isotope composition of soil bacteria.

Taxonomic study of oribatid mites (Acari, Oribatida) of Bi Dup-Nui Ba National Park (southern Vietnam).

A list of oribatid mite taxa from six localities of Bi Dup-Nui Ba National Park (southern Vietnam) is provided. It includes 89 species/subspecies, 68 genera, and 40 families, of these 23 species, two subgenera, 15 genera and seven families are recorded for the first time in Vietnam. Three species (Elaphoppia quadripilosa, Exoribatula cf.

Umashtanchaeviella plethotricha, a new genus and species of the family Tetracondylidae (Acari, Oribatida).

A new genus of oribatid mites of the family Tetracondylidae, Umashtanchaeviella gen. n., with type species Umashtanchaeviella plethotricha sp.

A new subgenus and three new species of oribatid mites of the genus Yoshiobodes (Acari, Oribatida, Carabodidae) from Vietnam.

A new subgenus and three new species of oribatid mites of the genus Yoshiobodes, Yoshiobodes (Dongnaiobodes) subgen. nov., Y.

The family Ctenobelbidae (Acari, Oribatida), with description of a new species and discussion on systematic placement and taxonomic status of the genus Berndamerus Mahunka, 1977.

The oribatid mite genus Berndamerus Mahunka, 1977 is transferred into the family Ctenobelbidae as the subgenus Ctenobelba (Berndamerus) Mahunka, 1977, stat. n. from the family Amerobelbidae.

Two new species of oribatid mites of the family Galumnidae (Acari, Oribatida) from Vietnam.

Two new species of oribatid mites of the family Galumnidae, Allogalumna monodactyla sp. n. and Galumna (Galumna) paracalcicola sp.

The oribatid mite genus Papillocepheus (Acari, Oribatida, Tetracondylidae), with description of a new species from southern Vietnam.

The genus Papillocepheus is recorded in the Oriental region for the first time. A new species, Papillocepheus primus sp. n.

Macrostylopyga gen. nov., a new genus of cockroaches (Dictyoptera: Blattidae), with descriptions of two new species.

The genus Macrostylopyga gen. nov. and two species (M.

Description of Chistyakovella insolita gen. nov., sp. nov., and redescription of the type species of Diplobodes, D. kanekoi Aoki, 1958 (Acari: Oribatida: Carabodidae).

A new oribatid mite genus, Chistyakovella gen. nov. (Carabodidae), with type species C.

[Soil microarthropods and macrofauna in monsoon tropical forests of Cat Tien and Bi Dup-Nui Ba National Parks, Southern Vietnam].

The abundance, biomass, vertical distribution, and taxonomic composition of soil invertebrates (springtails, macrofauna, and termites) were studied in forest formations differing in edaphic and climatic conditions: lowland forests dominated by Lagerstroeomia spp. or Dipterocarpus spp. in the Cat Tien National Park and in a mountain pine (Pinus kesiya) forest on the Da Lat Plateau, southern Vietnam.

Three types of birthrates in the USSR: stages of demographic transition.

"Regional differences in birthrate indicators, which are primarily associated with different stages of the demographic transition, are examined in three typical USSR republics: post-transitional (Estonia), transitional (Azerbaijan), and pre-transitional (Tajikistan). Demographic transition theory in the explanation and forecasting of birthrate trends is discussed. It is concluded that the experience of the USSR supports the universal nature of this theory.