Consulta: subjectFacets:"Cells"
Registros recuperados: 12
Data/hora: 05/06/2024 09:47:06

Расчет объемов и площадей поверхности одноклеточных водорослей Черного Моря
Provedor de dados: 13
Autores: Брянцева, Ю. В.; Лях, А. М.; Сергеева, А. В.
В пособии представлены изображения 37 геометрических фигур, используемых для вычисления биомассы и площади поверхности одноклеточных водорослей методом “истинного объема” Приводятся соответствующие расчетные формулы. Впервые указаны подобные геометрические фигуры и поправочные коэффициенты _соотношения между видимыми и невидимыми параметрами клеток, для 250 видов черноморского фитопланктона. Пособие предназначено для гидробиологов, экологов, океанологов.
Tipo: Other
Palavras-chave: Volume; Phytoplankton; Algae; Cells; Cells; Volume; Phytoplankton; Algae; Http://aims.fao.org/aos/agrovoc/c_1418; Http://aims.fao.org/aos/agrovoc/c_8288; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_258.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/657

Uso do laser de baixa intensidade em cabras lactantes: I. Observações preliminares.
Provedor de dados: 14
Autores: LIGNON, G. B.; FOLLY, M. M.; COSTA, J. R. da; BOTTECCHIA, R. J.; MATTOS, E. da S.
Com o intuito de observar o efeito da aplicação do laser de baixa intensidade sobre a contagem de células somáticas no leite foram selecionadas 12 cabras lactantes mantidas em sistema semi-confinado de criação. Os animais devidamente identificados foram distribuídos aleatoriamente em dois grupos de seis, sendo que um grupo recebeu a aplicação de laser e o outro não. Diariamente, por um período de seis dias consecutivos foi retirada uma amostra de leite por animal, sendo que ao término da terceira, quarta e quinta ordenha foi aplicada uma dose de laser na intensidade de 0,6 J numa área depilada correspondente ao acuponto "Baihui posteior" pressionando-o com um laser de hélio-neônio com uma potência de 10 mW. No planejamento foi definido um delineamento...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Acupunture.; Acupuntura; Cabra; Célula; Lactação; Leite.; Cells; Goats; Lactation; Milk.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/597368

Ultrastructure et activite de la glande salivaire de Patella safiana LMK (Mollusque, Gasteropode)
Provedor de dados: 5
Autores: Benmeradi, S; Benmeradi, N.
The ultrastructural study of the Patella safiana salivary gland reveals two types of cells: the dark cells containing round-shaped secretory vesicles of lamellar structure and the light cells which have homogenous and fibrous secretory granules that are star-shaped sometimes. The two types of cells have the cytological characteristics of high proteosynthetic activity cells.
Tipo: Text
Palavras-chave: Patella safiana; Gastropoda; Biochemical analysis; Secretory organs; Cytology; Cells; Marine molluscs; Enzymes; Ultrastructure.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1712.pdf

Problemes de morphogenese cuticulaire chez les crustaces
Provedor de dados: 5
Autores: Bouligand, Y.
The crustacean integument is an excellent model for the study of cuticular morphogenesis, at different organization levels. At the supermolecular level, subunits of chitin and protein assemble and show the organization of a stabilized liquid crystal. At higher levels corresponding to cells and cells populations, several controls are involved in the fine architecture of the epicuticle, in the mineral distribution and in characters which concern the whole animal, such as isometric or allometric growth.
Tipo: Text
Palavras-chave: Crustacea; Mineralization; Morphogenesis; Cells; Molecular structure.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/acte-1372.pdf

Fine cytochemical localization of lysosomal organelles in phagocytic cells of bivalve molluscs.
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
Bivalve molluscs possess several types of hemolymph cells (hemocytes), involved in internal defense and other physiological functions. Studies in pathological and experimental conditions have shown their micro- and macrophagic ability. However, the mechanisms of intracellular digestion are incompletely known in these organisms. The lysosomal apparatus of hemocytes was therefore investigated in several species by hydrolase localization with the electron microscope. The cytoplasmic granules of granulocytes displayed a strong acid beta -glycerophosphatase activity. Previous observations had shown that these granules may contain phagocytized material. This indicates that intracellular digestion is achieved in these organelles. Acid beta -glycerophosphatase...
Tipo: Text
Palavras-chave: Bivalvia; Phagocytosis; Cells; Ultrastructure; Haemolymph.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1631.pdf

Trophic relationships gonad-intestinal loop in Pecten maximus .
Provedor de dados: 5
Autores: Lepennec, M; Dorange, G; Beninger, P; Donval, A; Widowati, I.
Histological, histochemical and ultrastructural studies were performed on the region of the gonad traversed by the intestine in Pecten maximus . The results indicate a digestive and absorptive function of intestine epithelial cells and a transfer of metabolites to the surrounding gonad tissue. Several possible mechanisms of translocation are presented, including diffusion into the haemolymph and transfer via vacuolated cells of the gonad interstitial connective tissue.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Histology; Haemolymph; Histochemistry; Cells; Metabolites; Epithelia; Intestines; Ultrastructure; Animal reproductive organs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1668.pdf

Localisation immunohisto chimique de peptides apparentes aux hormones de vertebres chez Pecten maximus
Provedor de dados: 5
Autores: Donval, A.
Substances related to vertebrate peptidic hormones have been searched by immunohistochemical methods in Pecten maximus . Neurosecretory cells have been detected in the nervous ganglia with antisera raised against vertebrate hormones, gastrin/CCK like, glucagon like, insuline like, somatostatine like. Other gastro-intestinal hormones like are localized in some cells of the gut epithelium: bombesine and vasoactive intestinal peptide.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Immunology; Histochemistry; Cells; Neurosecretory system; Juveniles; Hormones.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1724.pdf

Effects de le temperature et du regime alimentaire sur certains parametres de l'immunite cellulaire du loup de mer en elevage
Provedor de dados: 5
Autores: Deschaux, P; Peres, G.
The data showed that antibody response and NK cells activity of a teleostean fish Dicentrarchus labrax (Loup de mer) were maximal when animals were bred at a temperature equal to 18 degree C. A proteinoprive diet enhanced T cytotoxic response and diminished NK cell activity. A fast of 15 days had no effect on these two cellular responses.
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Serranidae; Pisces; Antibodies; Starvation; Toxicity; Cells; Immunity; Diets; Nutrition; Temperature effects; Fish culture.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1248.pdf

Histological study of a cellular reaction in Ruditpaes decussatus infected by a protozoan
Provedor de dados: 5
Autores: Chagot, Dominique; Comps, Michel; Boulo, Viviane; Ruano, Francisco; Grizel, Henri.
An infection caused by a Perkinsus -like parasite has been observed in Ruditapes decussatus from Portugal (Comps and Chagot, 1987). Following a pathological study carried out on clams affected by mortalities in the Algarve area, this parasite was found again, inducing a reaction process in the host. Histological examination reveals the parasite in the connective tissue of different organs. The adjoining tissues, particularly the epithelia, are not affected.
Tipo: Text
Palavras-chave: Cells; Histology; Pathology; Ruditapes decussatus.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/acte-3109.pdf

Etude cytologique ultrastructurale des anomalies hepatiques du loup, de la daurade, et de l'anguille, induites par une alimentation artificielle
Provedor de dados: 5
Autores: Bac, N; Biagianti, S; Brusle, J.
In the three species Dicentrarchus labrax, Sparus auratus , and Anguilla anguilla an artificial feeding (dry pellets) disturbs liver cells as revealed at ultrastructural level. In hepatocytes, anomalies consist of lipids storage (liposomes) considered as deviation in fatty acids metabolism. Moreover are observed cellular alterations (mitochondrial vacuolization, nuclear pycnosis) related to degenerative process. It is of great interest to understand wether liver modifications are just a reaction to an unbalanced feeding or a true trophic pathology.
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Serranidae; Pisces; Natural populations; Fish culture; Lipids; Fatty acids; Cytology; Ultrastructure; Cells; Diseases; Pellet feeds; Metabolism; Liver; Artificial feeding; Nutrition disorders.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1250.pdf

Cocolitofóridos identificados en el fitoplancton de aguas ecuatorianas
Provedor de dados: 20
Autores: Jiménez, R.
Muestras del fitoplancton de aguas de mar y de red de arrastre fueron recolectadas abordo del B.A.E "ORION" del Instituto Oceanográfico de la Armada, durante el período de 1972 -1979. La mayor parte de las especies fueron identificadas mediante el microscopio estandar de Zeiss con optovar incorporado, y el microscopio invertido utilizado para los contajes celulares. La identificación de las células más pequeñas fue confirmada con el Microscopio Electrónico de Barrido. 37 especies de cocolitofóridos fueron reconocidos y serán incorporados en los conteos celulares de las investigaciones futuras. Estos organismos constituyeron una población muy importante del fitoplancton marino de aguas ecuatorianas, y contribuyeron en muchas ocasiones, hasta con el 90% de...
Tipo: Journal Contribution
Palavras-chave: Phytoplankton; Cells; Phytoplankton; Cells; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_1418.
Ano: 1983
URL: http://hdl.handle.net/1834/2099

Primary culture of hepatic cells from Metynnis roosevelti (Pisces, Teleostei, Characidae)
Provedor de dados: 62
Autores: SALVO,Ligia Maria; MALUCELLI,Maria Ivette Carboni; RICHARTZ,Rosária Regina Tesoni B.; BACILA,Metry.
In order to achieve monolayers and adhesion in cell cultures of hepatocytes from the subtropical fish Metynnis roosevelti (Pisces, Teleostei, Characidae) three different methodologies were used: enzyme cell dissociation by means of a system containing trypsin and versene 0.25%; by means of bovine fetal serum and by the use of blood serum obtained from adult specimens of M. roosevelti. The cell medium used has been a modified F10-199 by the addition of 2 mM L-glutamine, 10 µg/mL insulin, 50 µg/mL fibronectin; and antibiotics. The best results in terms of cell dissociation as well as in terms of adhesion and confluence of the cells monolayer has been achieved by means of the enzymatic cell dissociation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Liver cells; Cell culture; Cells; Pisces; Metynnis roosevelti.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000500004