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Juan Carlos Sierra

Bio: Juan Carlos Sierra is an academic researcher from University of Granada. The author has contributed to research in topics: Sexual desire & Orgasm. The author has an hindex of 30, co-authored 198 publications receiving 3223 citations. Previous affiliations of Juan Carlos Sierra include University of Murcia & National University of Saint Anthony the Abbot in Cuzco.


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TL;DR: In this article, a systematic review of research publications in which sexual satisfaction was the dependent variable was conducted, which revealed the complexity and importance of sexual satisfaction, which was associated with the following variables and factors: a) individual variables such as socio-demographic and psychological characteristics as well as physical and psychological health status; b) variables associated with intimate relationships and sexual response; factors related to social support and family relationships; and d) cultural beliefs and values such as religion.

321 citations

DOI
19 Jun 2003
TL;DR: In this paper, a revision of the conceptos de ansiedad, angustia, and estres, a fin de delimitar el solapamiento entre los mismos (especialmente entre ansíad y angustias, por una parte, and ansiedads y estresses, por otra); tambien, se pretende identificar aspectos that hacen posible the diferenciación of estos conceptos.
Abstract: El objetivo de este trabajo es hacer una revision de los conceptos de ansiedad, angustia y estres, a fin de delimitar el solapamiento entre los mismos (especialmente entre ansiedad y angustia, por una parte, y ansiedad y estres, por otra); tambien, se pretende identificar aspectos que hacen posible la diferenciacion de estos conceptos. Para alcanzar este objetivo, ofrecemos una introduccion general sobre la confusion conceptual que se ha producido en torno a dichos terminos, aportando evidencias empiricas y reflejando la situacion actual. A continuacion, seguimos una estructura similar para los tres conceptos: (1) una introduccion, (2) un recorrido historico sobre cada uno de ellos (recogiendo definiciones de distintas fuentes) y, (3) un apartado dedicado a los distintos marcos teoricos que se han planteado en torno a estos, tomando las aportaciones de diferentes disciplinas, como la Psicologia (incluyendo aproximaciones como la conductual, la cognitiva-conductual, la psicodinamica), la Filosofia, la Fisica, entre otras. Por ultimo, desarrollamos algunas conclusiones y proponemos directrices para la investigacion ulterior en el tema. Palabras clave: ansiedad, angustia, estres, evolucion historica, aproximaciones teorica

95 citations

Journal Article
TL;DR: In this article, the authors analyzed research scientific productivity of Spanish public universities by means of using criteria related to research assessment in Spain and developed a study to establish the weight of the indicators.
Abstract: Ranking 2008 of research productivity in Spanish public universities. The aim of this study is to analyze research scientific productivity of Spanish public universities by means of using criteria related to research assessment in Spain. Firstly, a study to establish the weight of the indicators was developed. A representative sample of 1,341 university teachers participated in this study. Of them, 68% are senior lecturers and 32% are professors. A stratified random sampling procedure within each area of knowledge was used. The sample is representative with a 97% confidence interval. Secondly, the scientific productivity according to the size of university in each indicator was analyzed. Finally, the scientific productivity according to size of university and weight of each indicator was weighted. Results of the survey make possible to get a specific ranking in each criterion: Doctoral dissertations, Research projects + development, Grants for training university teachers, Articles included in JCR, Research periods and Doctorate programs with Quality Mention, as well as a global ranking. Results allow analyzing strengths and weakness of each university according each criterion.

81 citations

Journal ArticleDOI
TL;DR: Higher sexual assertiveness was predicted by less non-physical abuse, more positive attitudes toward sexual fantasies and erotophilia, higher dyadic desire, and higher sexual arousal.
Abstract: This study was conducted to test interpersonal, attitudinal, and sexual predictors of sexual assertiveness in a Spanish sample of 1,619 men and 1,755 women aged 18-87 years. Participants completed measures of sexual assertiveness, solitary and dyadic sexual desire, sexual arousal, erectile function, sexual attitudes, and frequency of partner abuse. In men, higher sexual assertiveness was predicted by less non-physical abuse, more positive attitudes toward sexual fantasies and erotophilia, higher dyadic desire, and higher sexual arousal. In women, higher sexual assertiveness was predicted by less non-physical abuse, less solitary sexual desire and higher dyadic sexual desire, arousal, erotophilia, and positive attitudes towards sexual fantasies. Results were discussed in the light of prevention and educational programs that include training in sexual assertiveness skills.

80 citations

Journal Article
TL;DR: In this paper, a study of 716 estudiantes universitarios (584 mujeres and 132 varones) of the University of California, Berkeley was conducted to evaluate the calidad subjetiva del sueno.
Abstract: Los trastornos del sueno constituyen uno de los problemas de salud mas relevantes en las sociedades occidentales. La importancia de una buena calidad de sueno no solamente es fundamental como factor determinante de la salud, sino como elemento propiciador de una buena calidad de vida. La calidad del sueno no se refiere unicamente al hecho de dormir bien durante la noche, sino que tambien incluye un buen funcionamiento diurno (un adecuado nivel de atencion para realizar diferentes tareas). Ello hace que sea fundamental estudiar la incidencia de estos trastornos en distintos tipos de poblaciones, asi como los factores que los determinan. Para alcanzar este objetivo, y ante las dificultades que implica la evaluacion polisomnografica en la deteccion de la calidad de sueno, en la mayoria de los casos se opta por el uso de instrumentos de autoinforme, entre los que destaca el Indice de Calidad del Sueno de Pittsburg. Desde la evaluacion conductual consideramos que el sueno esta determinado por cuatro diferentes dimensiones: tiempo circadiano, esto es, la hora del dia en que se localiza, factores intrinsecos del organismo (edad, sueno, patrones de sueno), conductas facilitadoras e inhibidoras realizadas por el sujeto y el ambiente en que duerme. La higiene del sueno incide sobre estas dos ultimas dimensiones, y en nuestro estudio nos centraremos en las conductas inhibidoras (consumo de sustancias psicoactivas). En el estudio se analiza la calidad subjetiva del sueno en una muestra de 716 estudiantes universitarios (584 mujeres y 132 varones) por medio del Indice de Calidad del Sueno de Pittsburg, y se evaluan los efectos del consumo de alcohol, cafeina y tabaco sobre la calidad del sueno. El Indice de Calidad del Sueno de Pittsburg proporciona una puntuacion global de la calidad del sueno y puntuaciones parciales en siete componentes distintos: calidad subjetiva del sueno, latencia del sueno, duracion del sueno, eficiencia habitual del sueno, alteraciones del sueno, uso de medicacion hipnotica y disfuncion diurna. Los resultados encontrados muestran que aproximadamente 30% de la muestra presenta una mala calidad del sueno, una excesiva latencia y una pobre eficiencia del sueno; no se encontraron diferencias entre hombres y mujeres en ningun componente, a excepcion del consumo de hipnoticos, donde las mujeres presentan una mayor puntuacion. Ello parece indicar que las dificultades para iniciar el sueno constituyen una caracteristica de la mala calidad del sueno en los sujetos mas jovenes, mientras que en las personas mayores lo caracteristico son los despertares nocturnos y el despertar precoz. La falta de diferencias en la calidad del sueno entre hombres y mujeres se puede deber a la edad de la muestra (20.92 anos), pues en las mujeres la menor calidad del sueno se hace mas evidente a medida que avanza la edad. Si tenemos en cuenta la puntuacion total del Indice de Calidad del Sueno de Pittsburg, encontramos que 60.33% de la muestra supera la puntuacion de cinco, por lo que estos sujetos pueden ser definidos como malos dormidores. Por otro lado, esta claramente demostrado que el uso excesivo de alcohol, cafeina y nicotina provoca alteraciones del sueno: aumento de la latencia, despertares nocturnos, reduccion del sueno de ondas lentas, reduccion del tiempo total de sueno y pobre calidad autoinformada del sueno. Sin embargo, el efecto que tiene el consumo social (consumo no excesivo) de estas sustancias sobre el sueno es menos conocido. En este estudio hemos definido como consumidores sociales a los sujetos que ingieren entre dos y cuatro copas de alcohol, dos y cuatro tazas de cafe y fuman entre 20 y 30 cigarrillos diariamente. Encontramos que el consumo diario habitual no excesivo de alcohol, cafeina y tabaco, provoca una mala calidad del sueno, una mayor latencia , un mayor numero de perturbaciones y una mayor disfuncion diurna. Esto pone de manifiesto la necesidad de controlar el consumo de estas sustancias para mantener una correcta calidad del sueno.

72 citations


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Journal Article

5,680 citations

01 Jan 2006
TL;DR: For example, Standardi pružaju okvir koje ukazuju na ucinkovitost kvalitetnih instrumenata u onim situacijama u kojima je njihovo koristenje potkrijepljeno validacijskim podacima.
Abstract: Pedagosko i psiholosko testiranje i procjenjivanje spadaju među najvažnije doprinose znanosti o ponasanju nasem drustvu i pružaju temeljna i znacajna poboljsanja u odnosu na ranije postupke. Iako se ne može ustvrditi da su svi testovi dovoljno usavrseni niti da su sva testiranja razborita i korisna, postoji velika kolicina informacija koje ukazuju na ucinkovitost kvalitetnih instrumenata u onim situacijama u kojima je njihovo koristenje potkrijepljeno validacijskim podacima. Pravilna upotreba testova može dovesti do boljih odluka o pojedincima i programima nego sto bi to bio slucaj bez njihovog koristenja, a također i ukazati na put za siri i pravedniji pristup obrazovanju i zaposljavanju. Međutim, losa upotreba testova može dovesti do zamjetne stete nanesene ispitanicima i drugim sudionicima u procesu donosenja odluka na temelju testovnih podataka. Cilj Standarda je promoviranje kvalitetne i eticne upotrebe testova te uspostavljanje osnovice za ocjenu kvalitete postupaka testiranja. Svrha objavljivanja Standarda je uspostavljanje kriterija za evaluaciju testova, provedbe testiranja i posljedica upotrebe testova. Iako bi evaluacija prikladnosti testa ili njegove primjene trebala ovisiti prvenstveno o strucnim misljenjima, Standardi pružaju okvir koji osigurava obuhvacanje svih relevantnih pitanja. Bilo bi poželjno da svi autori, sponzori, nakladnici i korisnici profesionalnih testova usvoje Standarde te da poticu druge da ih također prihvate.

3,905 citations

01 Jan 2012
TL;DR: In this article, the authors examined the reliability, temporal stability, and convergent validity of the Liebowitz Social Anxiety Scale (LSAS) in 73 Lati- nos diagnosed with an anxiety disorder.
Abstract: The Liebowitz Social Anxiety Scale (LSAS) is one of the most commonly used measures of social anxiety symptoms. To date, no study has examined its psychometric properties in a Latino sample. The authors examined the reliability, temporal stability, and convergent validity of the LSAS in 73 Lati- nos diagnosed with an anxiety disorder. The original LSAS subscales showed excellent internal consistency and temporal stability over a 1-year period. Participants with social anxiety disorder (SAD) scored significantly higher on all LSAS subscales than participants without SAD, supporting the convergent validity of the LSAS. Similar results were obtained for four subscales pro- posed by Safren and colleagues. Results have implications for the use of the LSAS as a measure of severity or outcome when comparing diverse populations.

1,934 citations

Journal Article
TL;DR: The Social Psychology of Groups as discussed by the authors is a seminal work in the field of family studies, where the authors introduced, defined, and illustrated basic concepts in an effort to explain the simplest of social phenomena, the two-person relationship.
Abstract: The Social Psychology of Groups. J. W Thibaut & H. H. Kelley. New York: alley, 1959. The team of Thibaut and Kelley goes back to 1946 when, after serving in different units of the armed services psychology program, the authors joined the Research Center for Group Dynamics, first at M.LT and then at the University of Michigan. Their continued association eventuated in appointments as fellows at the Center for Advanced Study in the Behavioral Sciences, 19561957. It is during these years that their collaboration resulted in the publication of The Social Psychology of Groups. The book was designed to "bring order and coherence to present-day research in interpersonal relations and group functioning." To accomplish this aim, the authors introduced, defined, and illustrated basic concepts in an effort to explain the simplest of social phenomena, the two-person relationship. These basic principles and concepts were then employed to illuminate larger problems and more complex social relationships and to examine the significance of such concepts as roles, norm, power, group cohesiveness, and status. The lasting legacy of this book is derived from the fact that the concepts and principles discussed therein serve as a foundation for one of the dominant conceptual frameworks in the field of family studies today-the social exchange framework. Specifically, much of our contemporary thinking about the process of interpersonal attraction and about how individuals evaluate their close relationships has been influenced by the theory and concepts introduced in The Social Psychology of Groups. Today, as a result of Thibaut and Kelley, we think of interpersonal attraction as resulting from the unique valence of driving and restraining forces, rewards and costs, subjectively thought to be available from a specific relationship and its competing alternatives. We understand, as well, that relationships are evaluated through complex and subjectively based comparative processes. As a result, when we think about assessing the degree to which individuals are satisfied with their relationships, we take into consideration the fact that individuals differ in terms of the importance they attribute to different aspects of a relationship (e.g., financial security, sexual fulfillment, companionship). We also take into consideration the fact that individuals differ in terms of the levels of rewards and costs that they believe are realistically obtainable and deserved from a relationship. In addition, as a result of Thibaut and Kelley's theoretical focus on the concept of dependence and the interrelationship between attraction and dependence, there has evolved within the field of family studies a deeper appreciation for the complexities and variability found within relationships. Individuals are dependent on their relationships, according to Thibaut and Kelley, when the outcomes derived from the existing relationship exceed those perceived to be available in competing alternatives. Individuals who are highly dependent on their relationships are less likely to act to end their relationships. This dependence and the stability it engenders may or may not be voluntary, depending on the degree to which individuals are attracted to and satisfied with their relationships. When individuals are both attracted to and dependent on their relationships, they can be thought of as voluntarily participating in their relationship. That is, they are likely to commit themselves to the partner and relationship and actively work for its continuance. Thibaut and Kelley termed those relationships characterized by low levels of satisfaction and high levels of dependence "nonvoluntary relationships. …

1,894 citations