Il suffisso verbale -yva-/-iva- in testi slavo-orientali dei secoli XI-XIV

Le lingue slave tra struttura e uso - Biblioteca di Studi Slavistici ◽

10.36253/978-88-6453-328-5.15 ◽

2016 ◽

pp. 261-277

Author(s):

Luisa Ruvoletto

Keyword(s):

Mode Of Action ◽

Oral Communication ◽

Frequent Occurrence ◽

Verbal Aspect

The article focuses on the main uses of secondary imperfective verbs with the suffix -yva-/-iva- in Early East Slavic texts dated 11th-14th centuries. The verbs with this suffix are used in all different contexts where the imperfective verbal aspect is required. The examples from the texts show a more frequent occurrence of the verbal forms with the suffix in dialogues, that is in passages involving oral communication contexts. Only in the later centuries the suffix will also take the particular function of expressing the “iterative mode of action” (iterativnyj sposob dejstvija).

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EFFECTS OF CHLORAMPHENICOL ON THE DEVELOPMENT OF THE ZEBRAFISH, BRACHYDANIO RERIO

Canadian Journal of Zoology ◽

10.1139/z67-026 ◽

1967 ◽

Vol 45 (2) ◽

pp. 191-204 ◽

Cited By ~ 14

Author(s):

P. D. Anderson ◽

H. I. Battle

Keyword(s):

Spina Bifida ◽

Mode Of Action ◽

Developmental Stages ◽

Frequent Occurrence ◽

Brachydanio Rerio ◽

Unique Type ◽

Present Concept ◽

Optic Cup

Fertilized eggs of the zebrafish, Brachydanio rerio, were subjected at 26 °C to three concentrations of chloramphenicol, 0.125, 0.250, and 0.500 mg/ml, at seven developmental stages ranging from cleavage to optic cup formation for periods of 12, 24, and 36 h. Subsequently, they were transferred to aquarial water to complete 48 h of development. Most extreme anomalies were induced by chloramphenicol in eggs initially subjected during cleavage and blastulation and less extreme anomalies in eggs exposed during or after gastrulation. In addition to general retardation of development, anomalies of the nervous, muscular, and vascular systems were induced. A unique type of spina bifida was of frequent occurrence. The teratogenic responses of the zebrafish egg are discussed in relation to the present concept of the mode of action of this antibiotic.

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Effects of 5-5'-Diphenyl-2-thiohydantoin (DPTH) and Thyroxine on the Ultrastructure and Chemical Composition of Rat Liver

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100066917 ◽

1971 ◽

Vol 29 ◽

pp. 570-571

Author(s):

E. A. Elfont ◽

R. B. Tobin ◽

D. G. Colton ◽

M. A. Mehlman

Keyword(s):

Chemical Composition ◽

Rat Liver ◽

Future Study ◽

Mode Of Action ◽

Liver Mitochondria ◽

Rat Liver Mitochondria ◽

Effective Inhibitor ◽

Biochemical Effects ◽

Glycerophosphate Dehydrogenase ◽

Stimulation Of

Summary5,-5'-diphenyl-2-thiohydantoin (DPTH) is an effective inhibitor of thyroxine (T4) stimulation of α-glycerophosphate dehydrogenase in rat liver mitochondria. Because this finding indicated a possible tool for future study of the mode of action of thyroxine, the ultrastructural and biochemical effects of DPTH and/or thyroxine on rat liver mere investigated.Rats were fed either standard or DPTH (0.06%) diet for 30 days before T4 (250 ug/kg/day) was injected. Injection of T4 occurred daily for 10 days prior to sacrifice. After removal of the liver and kidneys, part of the tissue was frozen at -50°C for later biocheailcal analyses, while the rest was prefixed in buffered 3.5X glutaraldehyde (390 mOs) and post-fixed in buffered 1Z OsO4 (376 mOs). Tissues were embedded in Araldlte 502 and the sections examined in a Zeiss EM 9S.Hepatocytes from hyperthyroid rats (Fig. 2) demonstrated enlarged and more numerous mitochondria than those of controls (Fig. 1). Glycogen was almost totally absent from the cytoplasm of the T4-treated rats.

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