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Search Results: 1 - 10 of 54155 matches for " Verónica Juárez-Ramos "
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The Laughter of Ticklishness Is a Darwinian Feature Related to Empathy in Both Genders: Self-Esteem in Men and Sexism in Women  [PDF]
Verónica Juárez-Ramos, Elvira Salazar-López, María ángeles Rodríguez Artacho, K. Chmielowiec, A. Riquelme, J. Fernández-Gómez, A. I. Fernández-Ramirez, A. Vicente de Haro, A. Miranda, M. Caballero, B. Machado, Antonio González Hernández, Emilio Gómez Milán
Open Journal of Medical Psychology (OJMP) , 2014, DOI: 10.4236/ojmp.2014.31002
Abstract: The theory of false alarm for laughter could explain the involuntary laugh when someone is tickled. To put this hypothesis to the test, we handed out a questionnaire (180 items) with two hundred university students. Our main results are: In women who like being tickled, we discover components related to pleasure, erotism, feeling of affection, arousal, uncontrollability, domination, sexism and Darwinian (golden ratio) and psychological traits (empathy, low schizotypy and external locus of control) that are not present in the laughter at a stumble. The relation of both types of laughter with sense of humor is also differential. In men who like being tickled, we discover components related to masturbation, sexual fantasies, erotism, arousal, domination, sexist humour and Darwinian (square chin, feeling of masculinity) and psychological traits (empathic stress, low schizotypy, external locus of control and overall self-esteem). The relationship between being tickled and self-esteem shows a double aspect in men: It is positive in men who like being tickled and negative in men who do not like being tickled. For women there is not a relationship between self-esteem and tickling. Our conclusion is that laughter of ticklishness is a Darwinian feature related to empathy.

 

Factores que condicionan la regeneración natural de especies le osas en un bosque mediterráneo del sur de la Península Ibérica
I.M. Pérez-Ramos
Ecosistemas , 2007,
Abstract:
Uncertainties on the determination of the strong coupling alpha_s from the energy evolution of jet fragmentation functions at low z
David d'Enterria,Redamy Pérez-Ramos
Physics , 2014,
Abstract: The QCD coupling alpha_s is determined at NLO*+NMLLA accuracy from the comparison of experimental jet data to theoretical predictions of the energy-evolution of the parton-to-hadron fragmentation function moments (multiplicity, peak, width, skewness) at low fractional hadron momentum z. From the existing e+e- and e-p jet data, we obtain alpha_s(m_Z^2) = 0.1195 +/- 0.0021 (exp.) {+0.0015}_{-0.0} (scale) at the Z mass. The uncertainties of the extracted alpha_s value are discussed.
Determination of alpha_s at NLO*+NNLL from a global fit of the low-z parton-to-hadron fragmentation functions in e+e- and DIS collisions
Redamy Pérez-Ramos,David d'Enterria
Physics , 2014, DOI: 10.1051/epjconf/20159004001
Abstract: The QCD coupling alpha_s is determined from a combined analysis of experimental e+e- and e-p jet data confronted to theoretical predictions of the energy evolution of the parton-to-hadron fragmentation functions (FFs) moments --multiplicity, peak, width, skewness-- at low fractional hadron momentum z. The impact of approximate next-to-leading order (NLO*) corrections plus next-to-next-to-leading log (NNLL) resummations, compared to previous LO+NLL calculations, is discussed. A global fit of the full set of existing data, amounting to 360 FF moments at collision energies sqrt(s)~1--200 GeV, results in alpha_s(m_Z^2)=0.1189^{+0.0025}_{-0.0014} at the Z mass.
$α_s$ determination at NNLO$^\star$+NNLL accuracy from the energy evolution of jet fragmentation functions at low $z$
David d'Enterria,and Redamy Pérez-Ramos
Physics , 2015,
Abstract: The QCD coupling $\alpha_s$ is extracted from the energy evolution of the first two moments (multiplicity and mean) of the parton-to-hadron fragmentation functions at low fractional hadron momentum $z$. Comparisons of the experimental $e^+e^-$ and deep-inelastic $e^\pm$p jet data to our NNLO$^*$+NNLL predictions, allow us to obtain $\alpha_s(m_{_{\rm Z}})$ = 0.1205$\pm$0.0010$^{+0.0022}_{-0.0000}$, in excellent agreement with the current world average determined using other methods at the same level of accuracy.
Two new species of Parapharyngodon (Oxyuroidea: Pharyngodonidae) from the enigmatic Bipes canaliculatus and Bipes tridactylus (Squamata: Bipedidae)
Jiménez, Francisco Agustín;León-Règagnon, Virginia;Pérez-Ramos, Edmundo;
Revista mexicana de biodiversidad , 2008,
Abstract: two species of parapharyngodon collected from bipes canaliculatus and bipes tridactylus are herein described. parapharyngodon lamothei n. sp. was collected from the 4-toed worm lizard bipes canaliculatus from southern mexico. it is unique in possessing 6 lips, a gubernaculum, a fringed cloacal lip, and a single medial papilla in addition to 3 paired papillae. parapharyngodon maestro n. sp., was collected from the 3-toed worm lizard bipes tridactylus, and it is characterized by having 3 bilobed lips, a simple cloaca, a relatively long spicule, and by possessing 3 pairs of caudal papillae. these are the third and fourth species of the genus recorded in mexico.
Counteracting gradients of light and soil nutrients in the understorey of Mediterranean oak forests
L. V. García,S. Maltez-Mouro,I. M. Pérez-Ramos,H. Freitas
Web Ecology (WE) , 2006, DOI: 10.5194/we-6-67-2006
Abstract: The forest canopy modifies the availability of resources (light, water, and soil nutrients) in the understorey. In this paper we analyze the relationships between woody canopy density, litter accumulation, and topsoil N and P availability in the understorey of two oak forests: one in southern Portugal and the other in southern Spain. Both forests persist on low-nutrient soils, particularly poor in P. We hypothesize that direct and indirect effects of the canopy overstorey cause opposite gradients in the availability of essential resources (light and key soil nutrients) in the understorey. In both studied forests we found significant relationships between the overall canopy density, light availability, topsoil litter accumulation, and the availability of N and P, which frequently limit plant growth. Path analysis (by Shipley’s d-sep method) showed that the available data were consistent with the proposed causal model. The average values of soil variables at the end quartiles of the light-availability gradient were compared. Results showed large differences in litter accumulation (~30×) and available-N and -P topsoil concentrations (~3×) in the Spanish forest (with the wider environmental gradient). Furthermore, P increased from the “very low” range to the “low” or even the “optimum” range of availability (according to standard plant growth criteria), which suggests potential effects on the growth of the understorey plant species. We conclude that the counteracting gradients of the essential resources – light and nutrients – in the forest understorey resulted from direct and indirect effects of the canopy overstorey, respectively. We suggest that these counteracting effects of the woody canopy on essential resources of different nature must be considered when interpreting the patterns of understorey plant populations and communities.
Two new species of Parapharyngodon (Oxyuroidea: Pharyngodonidae) from the enigmatic Bipes canaliculatus and Bipes tridactylus (Squamata: Bipedidae) Dos especies nuevas de Parapharyngodon (Oxyuroidea: Pharyngodonidae) de los enigmáticos Bipes canaliculatus and Bipes tridactylus (Squamata: Bipedidae)
Francisco Agustín Jiménez,Virginia León-Règagnon,Edmundo Pérez-Ramos
Revista mexicana de biodiversidad , 2008,
Abstract: Two species of Parapharyngodon collected from Bipes canaliculatus and Bipes tridactylus are herein described. Parapharyngodon lamothei n. sp. was collected from the 4-toed worm lizard Bipes canaliculatus from southern Mexico. It is unique in possessing 6 lips, a gubernaculum, a fringed cloacal lip, and a single medial papilla in addition to 3 paired papillae. Parapharyngodon maestro n. sp., was collected from the 3-toed worm lizard Bipes tridactylus, and it is characterized by having 3 bilobed lips, a simple cloaca, a relatively long spicule, and by possessing 3 pairs of caudal papillae. These are the third and fourth species of the genus recorded in Mexico. En este trabajo se describen 2 especies del género Parapharyngodon: Parapharyngodon lamothei n. sp. y Parapharyngodon maestro n. sp., recolectadas del intestino de los bipédidos Bipes canaliculatus y Bipes tridactylus, respectivamente. La primera se caracteriza por poseer 6 labios, gubernáculo, labio cloacal ornamentado y las papilas caudales distribuidas en 3 pares y 1 papila sencilla media ventral inmediatamente postcloacal. Parapharyngodon maestro n. sp. se diferencia por poseer 3 labios lobulados, por su estructura cloacal lisa y por presentar 3 pares de papilas caudales en el caso de los machos.
On the Socio-Sexual Behaviour of the Extinct Ursid Indarctos arctoides: An Approach Based on Its Baculum Size and Morphology
Juan Abella, Alberto Valenciano, Alejandro Pérez-Ramos, Plinio Montoya, Jorge Morales
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0073711
Abstract: The fossil bacula, or os penis, constitutes a rare subject of study due to its scarcity in the fossil record. In the present paper we describe five bacula attributed to the bear Indarctos arctoides Depéret, 1895 from the Batallones-3 site (Madrid Basin, Spain). Both the length and morphology of this fossil bacula enabled us to make interpretative approaches to a series of ecological and ethological characters of this bear. Thus, we suggest that I. arctoides could have had prolonged periods of intromission and/or maintenance of intromission during the post-ejaculatory intervals, a multi-male mating system and large home range sizes and/or lower population density. Its size might also have helped females to choose from among the available males.
On the Sylow graph of a group and Sylow normalizers
L. S. Kazarin,A. Martínez-Pastor,M. D. Pérez-Ramos
Mathematics , 2009,
Abstract: Let $G$ be a finite group and $G_p$ be a Sylow $p$-subgroup of $G$ for a prime $p$ in $\pi(G)$, the set of all prime divisors of the order of $G$. The automiser $A_p(G)$ is defined to be the group $N_G(G_p)/G_pC_G(G_p)$. We define the Sylow graph $\Gamma_A(G)$ of the group $G$, with set of vertices $\pi(G)$, as follows: Two vertices $p,q\in\pi(G)$ form an edge of $\Gamma_A(G)$ if either $q\in\pi(A_p(G))$ or $p\in \pi(A_q(G))$. The following result is obtained: Theorem: Let $G$ be a finite almost simple group. Then the graph $\Gamma_A(G)$ is connected and has diameter at most 5. We also show how this result can be applied to derive information on the structure of a group from the normalizers of its Sylow subgroups.
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