28 Result(s)

Article

Untersuchung der Milch

H. Ilzhöfer, P. A. Kometiani, Josefa Cvitl, G. Roeder… in Zeitschrift für analytische Chemie (1933)

Article

Interaction of ethidium bromide with the transport system for monovalent cations in yeast

Ethidium was found to be taken up by yeast cells in a process that, at certain concentrations has the main following characteristics: a) a substrate is required; b) it presents cooperative kinetics, withn, accord...

A. Peña, G. Ramírez in The Journal of Membrane Biology (1975)

Article

Release of ethylene from pruned olive logs: Influence on attack by bark beetles (Coleoptera, Scolytidae)

In recently pruned olive logs, an increase in ethylene release has been observed between 48 and 72 hr after pruning. The values reached, as well as the duration of ethylene release, varied greatly from one log...

M. Campos, A. Peña, A. J. Sánchez Raya in Journal of Chemical Ecology (1994)

Article

Pyranine introduced by electroporation as an indicator of the internal pH of yeast

A. Peña, J. Ramírez, G. Rosas, M. Calahorra in Folia Microbiologica (1994)

Article

Effects of potassium on the expression and stability of the general amino acid permease ofSaccharomyces

G. Rosas, F. Gómez, A. Peña in Folia Microbiologica (1994)

Article

Response ofPhloeotribus scarabaeoides (Coleoptera, Scolytidae) to ethylene in an olfactometer

The role of ethylene, pure or in formulation, in the colonization behaviour of the olive bark beetle,Phloeotribus scarabaeoides (Coleoptera, Scolytidae) has been investigated in the laboratory. Ethylene has been ...

M. Campos, A. Peña in Experientia (1995)

Article

An extension of Milman's reverse Brunn-Minkowski inequality

J. Bastero, J. Bernués, A. Peña in Geometric & Functional Analysis GAFA (1995)

Article

Assessment of ΔμH⁺ inSchizosaccharomyces pombe; Intracellular inclusion of impermeable agents by electroporation

M. Höfer, M. Calahorra, B. Klein, A. Peña in Folia Microbiologica (1996)

Article

Comment

A. Peña in Pediatric Radiology (1996)

Article

On the Shape of p-Convex Hulls, 0 < p < 1

J. Bernués, A. Peña in Acta Mathematica Hungarica (1997)

Chapter and Conference Paper

Communicating Hydrocephalus: The Biomechanics of Progressive Ventricular Enlargement Revisited

This article investigates the physical mechanisms involved in the chronic ventricular enlargement that accompanies communicating hydrocephalus (CH) — including its normal and low-pressure forms. In particular,...

A. Peña, N. G. Harris, M. D. Bolton… in Intracranial Pressure and Brain Biochemica… (2002)

Article

The posterior sagittal trans-sphincteric and trans-rectal approaches

Background: The posterior sagittal, transphincteric approach to treat different pelvic problems has been known since the last century. Although some surgeons have embraced it and have enthusiastically advocated ...

A. Peña, A. Hong in Techniques in Coloproctology (2003)

Article

Chemical and physical factors affecting the extractability of methidathion from soil samples.

Determination of methidathion in soil samples using Soxhlet extraction has been studied. Several factors were investigated for their effect on methidathion recovery. Some were related to the extraction procedu...

L. Sánchez, M. D. Mingorance, A. Peña in Analytical and Bioanalytical Chemistry (2004)

Article

Comments on anterior ectopic anus

A. Peña in Pediatric Surgery International (2004)

Chapter and Conference Paper

Brain tissue biomechanics in cortical contusion injury: a finite element analysis

The controlled cortical impact model has been used extensively to study focal traumatic brain injury. Although the impact variables can be well defined, little is known about the biomechanical trauma as delive...

A. Peña, J. D. Pickard, D. Stiller… in Intracranial Pressure and Brain Monitoring… (2005)

Article

Comparative analysis of trehalose production by Debaryomyces hansenii and Saccharomyces cerevisiae under saline stress

The comparative analysis of growth, intracellular content of Na⁺ and K⁺, and the production of trehalose in the halophilic Debaryomyces hansenii and Saccharomyces cerevisiae were determined under saline stress. T...

J. C. González-Hernández, M. Jiménez-Estrada, A. Peña in Extremophiles (2005)

Article

Ultrasound-assisted extraction of pesticides from olive branches: a multifactorial approach to method development

A rapid and simple method has been developed for the analysis in olive branches of two insecticides currently used in olive pest control, dimethoate and α-cypermethrin. The effects of analytical conditions on pes...

A. Peña, F. Ruano, M. D. Mingorance in Analytical and Bioanalytical Chemistry (2006)

Article

The Wind Profile in the Coastal Boundary Layer: Wind Lidar Measurements and Numerical Modelling

Traditionally it has been difficult to verify mesoscale model wind predictions against observations in the planetary boundary layer (PBL). Here we used measurements from a wind lidar to study the PBL up to 800...

R. Floors, C. L. Vincent, S. -E. Gryning, A. Peña… in Boundary-Layer Meteorology (2013)