Autoerotic Asphyxiation Syndrome In Adolescent and Young Adult
... from his first paraphilic experience, which loosens his inhibitions about acting out other erotic fantasies.18
Bancroft (1989) suggested that the tendency of paraphilias to occur together suggests that the conditions
necessary for the development of one paraphilia may facilitate the development of o ...
The DSM Diagnostic Criteria for Hypoactive Sexual Desire Disorder
... of sexual interest was reported by 3.3% of men and
periodic lack of desire by 4.8% of men . This
represented the third most common sexual complaint in men, after PE (4.7% frequent and 7.0%
periodic) and erectile dysfunction (ED; 6.5% frequent and 5.9% periodic), respectively. Lack of
physical ac ...
An Intrinsic Advantage of Sexual Reproduction
... eukaryotic organisms. Why did this reproductive approach overcome its many defects
to persist so widely? This has been an important issue in evolutionary thoughts since
Darwin published his epochal evolutionary theory (Darwin 1859). The solution
accounting for the ubiquity of sex should give the lon ...
The frequency of sex in fungi
... only a very short one, and as soon as a partner is found
will fuse to form a diploid cell. These diploid cells will continue asexual growth and will on induction finish the
sexual cycle by producing meiotic offspring. The moment
of mating and meiosis in these species can thus be separated
from each ...
Lineage Selection and the Maintenance of Sex - Université Paris-Sud
... Nunney’s work has, however, been largely neglected, and there
has been little, if any, further exploration or discussion of the idea
that lineage selection may account for the maintenance of sex. We
therefore explore here, in more detail, lineage selection models
accounting for the maintenance of se ...
What Can Asexual Lineage Age Tell Us about the Maintenance of
... of evidence suggests that some asexual lineages are actually quite old. Insight into why
sex is so common may come from understanding why asexual lineages persist in some
places or taxa but not others. Here, we review the distribution of asexual lineage ages
estimated from a diverse array of taxa, a ...
Advances in Environmental Biology
... The techniques used for treatment of sexual disorders indicate scientific and cultural progresses through the
recent years, expansion of scientific methods for treatment of these disorders, historical interest of psychiatrists
in this issue, and importance of these problems in psychiatric treatments ...
Animal Clones and Diversity
... era I-purpose genotypes, and generation of specialized genotypes. Although certain hypotheses about
clonal adaptation may seem to be
contradictory, they are not necessarily so.
Asexual organisms are found more
frequently at extreme latitudes, at
higher, altitudes, at th ...
The False Problem of the Maintenance of Sex
... Obviously the number of offspring is a key factor for determining the most effective reproductive strategy, as
mentioned by Williams himself in his original proposal: “Unless something causes a difference in the numbers
of offspring...” (, p. 8). However, an approach in which changes in reproduct ...
LOSS OF SEXUAL RECOMBINATION AND SEGREGATION IS
... five clades, one clade had 95% support, two clades were subdivided differently using morphological versus molecular methods
but consist only of sexual taxa and so the exact composition of
these two clades does not influence the results, and the remaining two clades had 54% and 46% support (detailed ...
Recent advances in understanding of the
... co-adapted to me, then I do not need to have sexs”831.
model explicitly assumes that parasites do more harm if coadapted with the host, which, though not generally true, is
probably the case in some instances. So, are ancient asexuals
dispersers, do they have means to rid themselves of parasites ...
Intergroup bias toward “Group X”
... range of sexual functioning. Storms’ (1980) twodimensional model of sexual orientation includes
asexual as one of four sexual orientation categories,
with asexuals scoring low on both heterosexual and
homosexual attraction/fantasy. In a national probability study, Bogaert (2004, p. 281) found that 1 ...
Intimate Discrimination - University of Toronto Faculty of Law
... B. Empirical: The One Percent Who Wants No One
The foundational empirical moment for asexuality came over two decades later.
In 2004, social scientist Anthony Bogaert analyzed the data from a national probability
sample of over 18,000 British residents and found that 1% of the subjects agreed with t ...
Habitat heterogeneity favours asexual reproduction in natural
... three species mixed in equal proportions) and three with homogeneous habitats consisting only of one grass species. Mesocosms
were generated in transparent, cylindrical cages (15 cm diameter,
25 cm high), randomly placed on watering tables in a greenhouse
under a light regime of L/D = 14:10 superimp ...
Science and sexual desire
... Science and sexual desire
In line with Tuana, the sorts of questions we should be
What features of the various phenomena that we have
come to associate with human sexual desire catch the
attention of scientists?
What kinds of interventions are imagined?
What seems problematic and to ...
Article Recurrent Loss of Sex Is Associated with
... To further infer the extent to which higher N/S ratios in
asexual species reflect less efficient purifying selection, we fit a
model of the distribution of fitness effects of deleterious
nonsynonymous variants for the four sexual/asexual pairs,
using polymorphisms at 4-fold degenerate sites as a p ...
female sexual disorders
... concerns or questions about
their sexuality. I’m going to ask
you a few questions about this,
and would be pleased to discuss
these issues with you.”
Principles of Caregiving: Aging and Physical Disabilities Chapter 6
... activity. Pain and stiffness are the biggest factors that can interfere with an active sex life.
Pain can dull the desire for sexual activity and limit the positions you can use in sexual acts.
Fatigue from dealing with activities of daily living may also decrease your sexual desire.
Stiffness can r ...
Reproduction in Aspergillus fumigatus: sexuality
... infections in immunocompromised hosts and allergic
responses in other patients . The fungus has long
been considered an asexual organism, yet recent
findings strongly suggest that it may have a latent
potential for sexual reproduction. The potential presence of a sexual cycle is highly significa ...
4 - University of Arizona | Ecology and Evolutionary Biology
... 1 First, the mutant must be ®xed: it must increase in
frequency in the species, by the operation of random drift
and/or selection, until the entire species is asexual. Here,
asexual mutants may automatically enjoy as much as a
two-fold advantage over the sexual genotype. By itself,
this advantage wo ...
... DSM-IV-TR Diagnostic Criteria for Sexual Dysfunctions
Sexual Desire Disorders
Hypoactive Sexual Desire Disorder
A. Persistently or recurrently deficient (or absent) sexual fantasies
and desire for sexual activity. The judgment of deficiency or absence is made by the clinician, taking into account fa ...
... dependence on her but by his dependence on her
love, that is to say, by the desire for her
desire,. . .identifies himself with the imaginary
object of this desire in so far as the mother
herself symbolizes it in the phallus.
Asexuality (or nonsexuality) is the lack of sexual attraction to anyone, or low or absent interest in sexual activity. It may be considered the lack of a sexual orientation, or one of the variations thereof, alongside heterosexuality, homosexuality, and bisexuality. A study in 2004 placed the prevalence of asexuality at 1% in the British population.Asexuality is distinct from abstention from sexual activity and from celibacy, which are behavioral and generally motivated by factors such as an individual's personal or religious beliefs. Sexual orientation, unlike sexual behavior, is believed to be ""enduring."" Some asexual people engage in sexual activity despite lacking a desire for sex or sexual attraction, due to a variety of reasons, such as a desire to pleasure themselves or romantic partners, or a desire to have children.Acceptance of asexuality as a sexual orientation and field of scientific research is still relatively new, as a growing body of research from both sociological and psychological perspectives has begun to develop. While some researchers assert that asexuality is a sexual orientation, other researchers disagree.Various asexual communities have started to form since the advent of the World Wide Web and social media. The most prolific and well-known of these communities is the Asexual Visibility and Education Network (AVEN), which was founded in 2001 by David Jay.