13 Result(s)

Article

Number of retrieved lymph nodes and survival in node-negative patients undergoing laparoscopic colorectal surgery for cancer

The number of retrieved lymph nodes in colorectal cancer resection may have an impact on staging and survival. Examination of at least 12 nodes has become a quality measure for adequate surgical practice. To e...

S. Nir, R. Greenberg, E. Shacham-Shmueli, I. White… in Techniques in Coloproctology (2010)

Article

Kinetics of Influenza Virus Fusion with the Endosomal and Plasma Membranes of Cultured Cells. Effect of Temperature

We performed a detailed kinetic analysis of influenza virus fusion with the endosomal and plasma membranes of Madin Darby canine kidney (MDCK) cells and provided a comparison of the kinetic parameters obtained...

I. Nunes-Correia, S. Nir, M. C. Pedroso de Lima in The Journal of Membrane Biology (2003)

Article

Abstracts of presentations on selected topics at the xlvth international plant protection congress (IPPC) July 25–30, 1999

G. Theodoridis, D. Shaner, J. Townson, J. Kemp, P. Cory, D. Bartlett… in Phytoparasitica (2000)

Article

Abstracts of papers presented at the 15th conference of the weed science society of Israel

H. Eizenberg, Z. Tanaami, R. Jacobsohn, A. Lalazar, M. Hayut, M. Sibony… in Phytoparasitica (1999)

Article

Modeling Adsorption-Desorption Processes of Cd on Montmorillonite

Adsorption-desorption of Cd to Ca montmorillonite (SAz-1) was studied at concentrations ranging from 44.5 to 266.8 μM. An adsorption model was employed in the analysis of the data. The procedure consists of solvi...

T. Undabeytia, S. Nir, G. Rytwo, E. Morillo, C. Maqueda in Clays and Clay Minerals (1998)

Article

A model for cation adsorption to clays and membranes

A cation adsorption model is presented and its recent applications are discussed. The model combines electrostatic equations with specific binding, and considers neutral and positively charged complexes betwee...

S. Nir, G. Rytwo, U. Yermiyahu, L. Margulies in Colloid and Polymer Science (1994)

Article

Quantitative competition of calcium with sodium or magnesium for sorption sites on plasma membrane vesicles of melon (Cucumis melo L.) root cells

The presence of Ca²⁺ ions in solution is vital for root growth. The plasma membrane is one of the first sites where competition between Ca²⁺ and other ions occurs. We studied the competition between Ca²⁺ and Na⁺ ...

U. Yermiyahu, S. Nir, G. Ben-Hayyim, U. Kafkafi in The Journal of Membrane Biology (1994)

Article

Use of Methylene Blue and Crystal Violet for Determination of Exchangeable Cations in Montmorillonite

A procedure for the determination of cation exchange capacity (CEC) and the amounts of exchangeable cations adsorbed to montmorillonite is proposed. The method consists of a single incubation of the clay in a ...

G. Rytwo, C. Serban, S. Nir, L. Margulies in Clays and Clay Minerals (1991)

Article

Model for Competitive Adsorption of Organic Cations on Clays

The adsorption on montmorillonite of two monovalent organic cations, methylene blue (MB) and thioflavin T (TFT), was studied in four different situations: (1) separate adsorption of MB or TFT; (2) competitive ...

L. Margulies, H. Rozen, S. Nir in Clays and Clay Minerals (1988)

Article

Van der waals interactions between cell surfaces

Van der Waals energies of interaction between model cell surfaces are calculated for various distances of separation, layer thicknesses and compositions of cell surfaces and intercellular media. In these calcu...

S. Nir, M. Andersen in The Journal of Membrane Biology (1977)

Article

On the mass dependence of diffusion within biological membranes and polymers

A simple probability argument suggests that the diffusion coefficient for biological membranes (and polymers) should vary exponentially with the reciprocal of the molecular weight of the diffusant. A test of t...

W. D. Stein, S. Nir in The Journal of Membrane Biology (1971)