The freshwater Copepoda (Crustacea) of Costa Rica with notes on some species

Hydrobiologia ◽  
1984 ◽  
Vol 119 (2) ◽  
pp. 89-99 ◽  
Author(s):  
Carmen Collado ◽  
D. Defaye ◽  
B. H. Dussart ◽  
C. H. Fernando
Keyword(s):  
Costa Rica ◽  
Freshwater Copepoda

Tropical freshwater Copepoda from Papua, New Guinea, Burma, and Costa Rica, including a new species of Mesocyclops from Burma

1985 ◽  
Vol 63 (1) ◽  
pp. 202-206 ◽  
Author(s):  
B. H. Dussart ◽  
C. H. Fernando
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Sri Lanka ◽  
Papua New Guinea ◽  
New Guinea ◽  
New Subspecies ◽  
The Status ◽  
Freshwater Copepoda ◽  
A New Species ◽  
Tropical Freshwater

A new subspecies, Eucyclops birmanus aequatorialis ssp. nov., is described from Papua, New Guinea; Mesocyclops pehpeiensis, known from China, is recorded from Burma, Sri Lanka, and Malaysia; and a new species, Mesocyclops restrictus sp. nov., is described from Burma. Based on abundant material from Costa Rica, the status of Diaptomus dorsalis Marsh is reexamined.

scholarly journals Diversity of the free-living marine and freshwater Copepoda (Crustacea) in Costa Rica: a review

ZooKeys ◽  
2014 ◽  
Vol 457 ◽  
pp. 15-33 ◽  
Author(s):  
Alvaro Morales-Ramírez ◽  
Eduardo Suarez-Morales ◽  
Marco Corrales ◽  
Octavio Garrote
Keyword(s):  
Costa Rica ◽  
Free Living ◽  
Freshwater Copepoda

Identification of Maize Rayado Fino Virus by Immunoelectron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 636-637
Author(s):  
O. E. Bradfute
Keyword(s):  
Electron Microscopy ◽  
Zea Mays ◽  
Costa Rica ◽  
Severe Disease ◽  
Rabbit Serum ◽  
Normal Rabbit Serum ◽  
Virus Particles ◽  
Far North ◽  
Maize Rayado Fino Virus ◽  
Antibody Coating

Maize rayado fino virus (MRFV) causes a severe disease of corn (Zea mays) in many locations throughout the neotropics and as far north as southern U.S. MRFV particles detected by direct electron microscopy of negatively stained sap from infected leaves are not necessarily distinguishable from many other small isometric viruses infecting plants (Fig. 1).Immunosorbent trapping of virus particles on antibody-coated grids and the antibody coating or decoration of trapped virus particles, was used to confirm the identification of MRFV. Antiserum to MRFV was supplied by R. Gamez (Centro de Investigacion en Biologia Celular y Molecular, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica).Virus particles, appearing as a continuous lawn, were trapped on grids coated with MRFV antiserum (Fig. 2-4). In contrast, virus particles were infrequently found on grids not exposed to antiserum or grids coated with normal rabbit serum (similar to Fig. 1). In Fig. 3, the appearance of the virus particles (isometric morphology, 30 nm diameter, stain penetration of some particles, and morphological subunits in other particles) is characteristic of negatively stained MRFV particles. Decoration or coating of these particles with MRFV antiserum confirms their identification as MRFV (Fig. 4).

Social representations of human rights violations: Further evidence

2001 ◽  
Vol 60 (2) ◽  
pp. 89-98 ◽  
Author(s):  
Alain Clémence ◽  
Thierry Devos ◽  
Willem Doise
Keyword(s):  
Cluster Analysis ◽  
Human Rights ◽  
Costa Rica ◽  
Young People ◽  
Social Representations ◽  
Social Reality ◽  
Questionnaire Study ◽  
Human Rights Violations ◽  
High Tolerance ◽  
Individual Actions

Social representations of human rights violations were investigated in a questionnaire study conducted in five countries (Costa Rica, France, Italy, Romania, and Switzerland) (N = 1239 young people). We were able to show that respondents organize their understanding of human rights violations in similar ways across nations. At the same time, systematic variations characterized opinions about human rights violations, and the structure of these variations was similar across national contexts. Differences in definitions of human rights violations were identified by a cluster analysis. A broader definition was related to critical attitudes toward governmental and institutional abuses of power, whereas a more restricted definition was rooted in a fatalistic conception of social reality, approval of social regulations, and greater tolerance for institutional infringements of privacy. An atypical definition was anchored either in a strong rejection of social regulations or in a strong condemnation of immoral individual actions linked with a high tolerance for governmental interference. These findings support the idea that contrasting definitions of human rights coexist and that these definitions are underpinned by a set of beliefs regarding the relationships between individuals and institutions.

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