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Showing 1 to 12 of 15 entries
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Participation of the GABA-benzodiazepine system in the inhibition of defensive burying produced by ejaculation.

Behavioural pharmacology

Fernández-Guasti A, Saldívar A.
PMID: 11175427
Behav Pharmacol. 1990;1(5):429-436.

We recently reported a reduction in defensive burying behaviour after ejaculation. The present study analyzed whether this reduction was mediated via an increase in GABAergic transmission. Two experimental series were included: in the first series the reduction in burying...

Noradrenaline-serotonin interactions in the anxiolytic effects of 5-HT(1A) agonists.

Behavioural pharmacology

López-Rubalcava C, Fernández-Guasti A.
PMID: 11224250
Behav Pharmacol. 1994 Feb;5(1):42-51. doi: 10.1097/00008877-199402000-00005.

The purpose of this study was to analyse adrenergic and serotonergic interactions in the anxiolytic effects of several 5-HT(1A) agonists including ipsapirone, buspirone, indorenate and 8-OH-DPAT. To this end, the effects of different doses of the adrenergic compounds clonidine...

Multiple-path telescope: third-order design.

Applied optics

Castro-Ramos J, Vázquez-Montiel S, Fernández-Guasti M, Cornejo-Rodríguez A.
PMID: 18259496
Appl Opt. 1997 Sep 01;36(25):6399-402. doi: 10.1364/ao.36.006399.

Exact results for the magnification and effective focal length of a multiple-path telescope are presented. We present analytical results for the third-order design of this system, using the Seidel sums for the five aberration terms. Numerical calculations are used...

Phase conjugation in amorphous selenium thin films.

Optics letters

Haro-Poniatowski E, Fernandez-Guasti M, Camacho-Lopez S.
PMID: 19784292
Opt Lett. 1992 Feb 15;17(4):252-4. doi: 10.1364/ol.17.000252.

We report phase conjugation in amorphous selenium thin films with a 25-mW He-Ne laser. The phase-conjugate signal exhibits a maximum efficiency of 18%. Gratings were recorded with spatial frequencies of 275 lines/mm. We have performed micro Raman spectroscopy measurements...

Formulation and Development of an Experimental Polishing Paste with Antimicrobial Activity Based on .

International journal of dentistry

Mayta-Tovalino F, Fernández-Giusti A, Del Pino J, Alvitez-Temoche D, Mendoza R, Temoche A, Munive-Degregori A.
PMID: 34306085
Int J Dent. 2021 Jul 06;2021:9998989. doi: 10.1155/2021/9998989. eCollection 2021.

AIM: To formulate and develop a new experimental polishing paste based on MATERIALS AND METHODS: The research was experimental, longitudinal, comparative, and prospective. To measure the antibacterial efficacy, analysis units consisted of wells were made. The microorganisms RESULTS: It...

Sexual orientation, neuropsychiatric disorders and the neurotransmitters involved.

Neuroscience and biobehavioral reviews

Li H, Fernández-Guasti A, Xu Y, Swaab D.
PMID: 34597715
Neurosci Biobehav Rev. 2021 Dec;131:479-488. doi: 10.1016/j.neubiorev.2021.09.048. Epub 2021 Sep 28.

According to the neuro-hormonal theory, sexual orientation in humans develops in the womb under the influence of sex hormones. In this article, we review the evidence from basic research on the possible role of neurotransmitters on influencing sexual orientation....

Amplitude and phase representation of monochromatic fields in physical optics.

Journal of the Optical Society of America. A, Optics, image science, and vision

Fernández-Guasti M, Jiménez JL, Granados-Agustín F, Cornejo-Rodríguez A.
PMID: 12938920
J Opt Soc Am A Opt Image Sci Vis. 2003 Aug;20(8):1629-34. doi: 10.1364/josaa.20.001629.

The conservation equation for a monochromatic field with arbitrary polarization propagating in an inhomogeneous transparent medium is expressed in terms of amplitude and phase variables. The expressions obtained for linearly polarized fields are compared with the results obtained in...

Anomalous conical emission: Two-beam experiments.

Physical review. A, Atomic, molecular, and optical physics

Fernández Guasti M, Haro Poniatowski E, Hernández Pozos JL, Julio Sánchez LA.
PMID: 9910272
Phys Rev A. 1994 Jan;49(1):613-615. doi: 10.1103/physreva.49.613.

No abstract available.

Brain SERT Expression of Male Rats Is Reduced by Aging and Increased by Testosterone Restitution.

Neuroscience journal

Herrera-Pérez JJ, Fernández-Guasti A, Martínez-Mota L.
PMID: 26317087
Neurosci J. 2013;2013:201909. doi: 10.1155/2013/201909. Epub 2013 Dec 18.

In preclinical and clinical studies aging has been associated with a deteriorated response to antidepressant treatment. We hypothesize that such impairment is explained by an age-related decrease in brain serotonin transporter (SERT) expression associated with low testosterone (T) levels....

Perinatal administration of aromatase inhibitors in rodents as animal models of human male homosexuality: similarities and differences.

Advances in neurobiology

Olvera-Hernández S, Fernández-Guasti A.
PMID: 25287550
Adv Neurobiol. 2015;10:381-406. doi: 10.1007/978-1-4939-1372-5_18.

In this chapter we briefly review the evidence supporting the existence of biological influences on sexual orientation. We focus on basic research studies that have affected the estrogen synthesis during the critical periods of brain sexual differentiation in male...

Productivity Characteristics of the Thesis Rate of PhD Students in Biomedical Areas of the Different Doctoral Programs in Lima, Peru: A 20-year Retrospective Study.

Journal of International Society of Preventive & Community Dentistry

Fernández-Giusti A, Ronceros G, Matzumura-Kasano J, Podestá L, Canchis-Aremburgo J, Mayta-Tovalino F.
PMID: 33688469
J Int Soc Prev Community Dent. 2021 Jan 30;11(1):19-25. doi: 10.4103/jispcd.JISPCD_332_20. eCollection 2021.

OBJECTIVE: The aim of this study was to determine the productivity characteristics related to the thesis rate of biomedical students of the PhD program in Health Sciences in Lima, Peru through a 20-year retrospective study.MATERIALS AND METHODS: This was...

Laser-induced diffraction patterns in germanium diselenide amorphous films.

Applied optics

Fernandez-Guasti M, Haro-Poniatowski E, Camacho-Lopez S.
PMID: 20725311
Appl Opt. 1992 Jun 20;31(18):3453-9. doi: 10.1364/AO.31.003453.

We report the characterization of changes produced on germanium diselenide amorphous semiconductor thin films by a focused He-Ne laser beam. The diffraction pattern produced by the laser spot on the sample is studied as a function of the intensity...

Showing 1 to 12 of 15 entries