15 Result(s)

Article

Machining of coarse grained and ultra fine grained titanium

Machining of titanium is quite difficult and expensive. Heat generated in the process of cutting does not dissipate quickly, which affects tool life. In the last decade ultra fine grained (UFG) titanium has em...

R. Lapovok, A. Molotnikov, Y. Levin, A. Bandaranayake… in Journal of Materials Science (2012)

Article

Sex-specific serum biomarker patterns in adults with Asperger's syndrome

Autism spectrum conditions have been hypothesized to be an exaggeration of normal male low-empathizing and high-systemizing behaviors. We tested this hypothesis at the molecular level by performing comprehensi...

E Schwarz, P C Guest, H Rahmoune, L Wang, Y Levin, E Ingudomnukul… in Molecular Psychiatry (2011)

Article

Global proteomic profiling reveals altered proteomic signature in schizophrenia serum

Schizophrenia is one of the most severe psychiatric disorders affecting 1% of the world population. There is yet no empirical method to validate the diagnosis of the disease. The identification of an underlyin...

Y Levin, L Wang, E Schwarz, D Koethe, F M Leweke, S Bahn in Molecular Psychiatry (2010)

Article

Increased levels of circulating insulin-related peptides in first-onset, antipsychotic naïve schizophrenia patients

P C Guest, L Wang, L W Harris, K Burling, Y Levin, A Ernst… in Molecular Psychiatry (2010)

Article

Simple model for attraction between like-charged polyions

We present a simple model for the possible mechanism of appearance of attraction between like charged polyions inside a polyelectrolyte solution. The attraction is found to be short ranged, and exists only in ...

J.J. Arenzon, J.F. Stilck, Y. Levin in The European Physical Journal B - Condense… (1999)

Article

Donnan equilibrium and the osmotic pressure of charged colloidal lattices

We consider a system composed of a monodisperse charge-stabilized colloidal suspension in the presence of monovalent salt, separated from the pure electrolyte by a semipermeable membrane, which allows the cros...

M.N. Tamashiro, Y. Levin, M.C. Barbosa in The European Physical Journal B - Condense… (1998)

Article

Damage-to-dose ratio after low energy silicon ion implantation into crystalline silicon

In this work, we develop a model describing the diffusion of vacancies and self-interstitials and their recombination during ion implantation. The model includes the effect of the moving surface due to regrowt...

Y. Levin, N. Herbots, S. Dunham in Journal of Materials Research (1993)

Article

Damage to Crystalline Silicon Following Implantation by Low Energy Silicon Ions

A new approach to investigate low energy defect formation and annealing in a crystal is developed, based on experimental observations of the total number of interstitials. The model is applied to damage in cry...

Y. Levin, N. Herbots, S. Dunham in MRS Online Proceedings Library (1992)

Article

Flavin-protein interaction in bound glucose oxidase

Glucose oxidase was bound to Sepharose, Sephadex, gelatin, and dextran, yielding immobilized soluble and insoluble derivatives of the enzyme. The soluble preparations possessed higher enzymic activity than the...

B. Solomon, Y. Levin in Journal of Solid-Phase Biochemistry (1976)

Article

Active Water-insoluble Derivative of Renin

ALTHOUGH the action of renin on the blood pressure has been explored by many investigators, some of its basic enzymatic properties are yet to be established¹. While studying plasma kinins, we found it to be of ad...

T. SEKI, T. A. JENSSEN, Y. LEVIN, E. G. ERDÖS in Nature (1970)

Chapter

Application of Water-Insoluble Complexes of Kininogenases, Inhibitors and Kininases to Kinin Research

Although a variety of methods have been available for coupling proteins with water-insoluble carriers, the impetus to our experiments was given by a publication of Levin et al. (1). They coupled trypsin to the co...

T. Seki, H. Y. T. Yang, Y. Levin, T. A. Jenssen… in Bradykinin and Related Kinins (1970)

Article

Synthesis of polyamino malonic acid

Polyaminomalonsäure (VIII), das erste Glied der homologen Poly-α-aminodikarbonsäuren, wurde synthetisiert, ausgehend von Aminomalonsäurediäthylester (I), der mit Chlorameisensäuremethylester in N-Carbome thoxy...

M. Frankel, M. Harnik, Y. Levin in Experientia (1952)