57 research outputs found
The Prospective Co-Parenting Relationship Scale (PCRS) for sexual minority and heterosexual people: preliminary validation
The coparenting relationship begins with a process of planning and negotiation about having children. Available psychological instruments have not been adapted to sexual minority people, which compromises their ecological validity. This mixed method study aimed to adapt and validate a prospective version of the Co-Parenting Relationship Scale in a Portuguese sample of sexual minority and heterosexual adults who did not have children and who were in a dyadic relationship. In study 1, cognitive interviews were used to gather participants’ reflections about the original items and the role played by the family of origin and anticipated stigma in coparenting (n = 6). In study 2, using a sample of individuals from 18 to 45 years old, two Exploratory Factor Analyses (EFA) were conducted separately for sexual minority (n = 167) and heterosexual persons (n = 198), and a Confirmatory Factor Analysis (CFA) was conducted for heterosexual persons (n = 176). Results showed underscored the importance of families of origin independent of sexual orientation. Different factorial structures for sexual minority and heterosexual persons were observed. Among sexual minority persons, the role of stigma was also highlighted. Implications for practice and research are discussed
A V2G Integrated Battery Charger Based on an Open End Winding Multilevel Configuration
A new approach to obtain an integrated battery charger is described in this paper, based on the Asymmetrical Hybrid Multilevel Converter topology. Such a particular open-end winding motor configuration, which has proved to be more efficient than conventional inverter topologies in EV motor drive applications, can be turned in an on-board battery charger only by acting on the control system. Thus, no circuit reconfiguration through electro-mechanical switches is required. Moreover, by introducing a single extra power switch, a bilateral power flow can be managed enabling vehicle to grid operations. The obtained integrated battery charger can be supplied either by a standard ac single-phase grid, either by a dc power source for direct connection to domestic energy resources. The proposed approach enables a new remarkable function to the asymmetrical hybrid multilevel converter at a marginal extra cost, thus mitigating the larger complexity and cost of such an inverter if compared with conventional topologies
Dispersion and release of embelin from electrospun biodegradable, polymeric, membranes
In this work, microfiber meshes containing embelin, a poorly water-soluble bioactive agent, were prepared by solubilizing embelin in a biodegradable and biocompatible polymer matrix of poly(ε-caprolactone) (PCL). Plain or drug-loaded, highly porous, fibrous membranes with a high area-to-volume ratio were obtained by electrospinning. Non-woven microfibrous meshes were formed by uniform bead-free fibers with a mean diameter of 1.2 μm. Non-porous films were obtained by solution casting, and were used for comparison. The drug-loading content of the prepared systems was appropriate for topical applications. The thermal properties revealed that the crystallinity of embelin significantly decreased, the drug having almost completely dissolved in the PCL fibers. The in situ bioavailability of embelin, an antimycotic agent, is an important aspect to consider in topical drug applications. The drug-loaded systems presented different contact areas with the biological environment. When comparing the ability to expose embelin with the biological environment of the prepared systems, drug-loaded fibrous scaffolds showed a higher bioavailability of the bioactive agent because of an increase by 86% in the area-to-volume ratio, providing an effective area per unit mass that was 5.8-fold higher than that of the film. For the meshes, 90% embelin release was observed after 12h of exposure to phosphate-buffered saline, whereas for the films a comparable level of release occurred only after 72h.Fil: Cortez Tornello, Pablo Roberto. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Mar del Plata. Instituto de InvestigaciĂłn En Ciencia y TecnologĂa de Materiales (i); Argentina. Universidad Nacional de San Juan. Facultad de IngenierĂa. Instituto de BiotecnologĂa; ArgentinaFil: Feresin, Gabriela Egly. Universidad Nacional de San Juan. Facultad de IngenierĂa. Instituto de BiotecnologĂa; ArgentinaFil: Tapia, Alejandro. Universidad Nacional de San Juan. Facultad de IngenierĂa. Instituto de BiotecnologĂa; ArgentinaFil: Veiga, Itiara G.. Universidade Estadual de Campinas; BrasilFil: Moraes, Ă‚ngela M.. Universidade Estadual de Campinas; BrasilFil: Abraham, Gustavo Abel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Mar del Plata. Instituto de InvestigaciĂłn En Ciencia y TecnologĂa de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de IngenierĂa; ArgentinaFil: Cuadrado, Teresita Raquel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Mar del Plata. Instituto de InvestigaciĂłn En Ciencia y TecnologĂa de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de IngenierĂa; Argentin
Can psychosocial and socio-demographic questions help identify sexual risk among heterosexually-active women of reproductive age? Evidence from Britain’s third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)
Background: Contraceptive advice and supply (CAS) and sexually transmitted infection (STI) testing are increasingly provided in primary care. Most risk assessment tools are based on sexual risk behaviours and socio-demographics, for use online or in specialist services. Combining socio-demographic and psychosocial questions (e.g. religious belief and formative experience) may generate an acceptable tool for targeting women in primary care who would benefit from intervention. We aimed to identify psychosocial and socio-demographic factors associated with reporting key sexual risk behaviours among women in the British general population.
Methods: We undertook complex survey analysis of data from 4,911 hetero-sexually active women aged 16-44 years, who participated in Britain’s third National Survey of Sexual Attitudes and Lifestyles (Natsal-3), a national probability sample survey undertaken 2010-2012. We used multivariable regression to examine associations between the available psychosocial and socio-demographic variables in Natsal-3 and reports of 3 key sexual behaviours: a) 2+ partners in the last year (2PP); b) non-use of condoms with 2+ partners in the last year (2PPNC); c) non-use of condoms at first sex with most recent sexual partner (FSNC). We adjusted for key socio-demographic factors: age, ethnicity and socio-economic status (measured by housing tenure).
Results: Weekly binge drinking (6+ units on one occasion), and first sex before age 16 were each positively associated with all three sexual behaviours after adjustment. Current relationship status, reporting drug use (ever), younger age and living in rented accommodation were also associated with 2+ partners and 2+partners without condoms after adjustment. Currently being a smoker, older age and respondent ethnicity were associated with FSNC after adjustment for all other variables. Current smoking status, treatment for depression (last year), and living at home with both parents until the age of 14 were each associated with 1 or more of the behaviours.
Conclusions: Reported weekly binge drinking, early sexual debut, and age group may help target STI testing and/or CAS among women. Further research is needed to examine the proportion of sexual risk explained by these factors, the acceptability of these questions to women in primary care and the need to customise them for community and other settings
LGBTQ parenting post heterosexual relationship dissolution
The chapter examines parenting among sexual and gender minorities post heterosexual relationship dissolution (PHRD). Reviewing the literature around intersecting identities of LGBTQ parents, we consider how religion, race, and socioeconomic status are associated with routes into and out of heterosexual relationships and variation in the lived experience of sexual and gender identity minorities, in particular how LGBTQ parents PHRD feel about being out. Further consideration is given to examining how family relationships change and develop as parental sexual and/or gender identity changes. We also explore the impact of PHRD identity and parenthood on new partnerships and stepfamily experiences. The chapter addresses the reciprocal relationship between research on LGBTQ parenting and policy and legal influences that impact upon the experience of LGBTQ parenting PHRD when custody and access are disputed. Finally, the chapter includes future research directions and implications for practice in an area that has been revitalized in recent years
Technical-tactical analysis of youth Olympic taekwondo combat
The purpose of this study was to define the technical and tactical profiles of official youth taekwondo competitions played under the most recent rules of the International Taekwondo Federation. Tactical actions (i.e., attack, defense, and block), technical executions (from 1- to 4-point scores), kicking legs (i.e., front/rear and right/left), and overall technical effectiveness were investigated in relation to match outcome of semifinal and final competitions (n = 50) of youth (aged 13-14 years) black belt athletes during the Italian Taekwondo Cadet Championship. Differences (p < 0.001) were found among all action typologies (Attack: 50.9 ± 2.2%; Defense: 27.7 ± 1.5%; Block: 21.3 ± 1.6%), with winners showing fewer (p = 0.005) offensive actions and more (p = 0.001) defensive actions with respect to non-winners. Independently from match outcome, technical exchanges showed differences (p < 0.001) for technical executions. Winners resulted more efficient (p < 0.001) for both technical and tactical variables. In general, these findings showed that Cadets tend to adopt an offensive strategy. In considering that the adoption of the new electronic system requires athletes to execute correct technical actions to have a score assigned, coaches should emphasize the effectiveness of scoring techniques and help athletes to effectively improve their defense and counterattack capabilities
Indoor and outdoor education: The role of body representations on sport practice
Background: Body representation is a complex process determined by the interaction of information coming from many different stimuli inside and outside the body and is a fundamental construct that reflects our knowledge of self. However, the way in which we perceive our bodies and how the body is represented in the brain during development, particularly during outdoor or indoor physical activity, is not yet fully understood. The aim of this study was to examine the development of different body representations (i.e., body semantics, body structural representation, and body schema) in school-aged children who practice indoor or outdoor sports. The role of motor coordination was considered as well. Methods:One hundred twelve school aged-children (age range: 8-10 years) completed a computerized battery that included three tasks, the Hand Laterality Task (HLT), Object-Body-Part Association (OBP), and Frontal Body Evocation task(FBE)involving body representation processing as well as control tasks. These control tasks included the Object Laterality Task (OLT), the Christmas Tree Task (CTT), and the Object-Room Association Task (ORT).Theparticipants also performed a foot-tapping performance test (FTap). Results: The effect of indoor or outdoor physical activity on body representations and the associations between age,performance on body representation tasks, and performance on the FTap were all analyzed.When we compared the performance of the two groups on the different body representation and control tasks, we found significant differences only on the FBE, whereas the outdoor physical activity group showed a better performance than the indoor physical activity group. Among the outdoor athletes, significant correlations were foundbetween age and errors made in the FTap, but there were no significant associations between the FTap and the body representation measures. Instead, in the indoor physical activity group, we found significant correlations between the FTap measures and body representation tasks. Discussion: Participants engaging in outdoor physical activities (i.e., soccer, baseball, tennis, cross-country) had better performance on the task assessing the body structural representation (FBE), suggesting that in addition to a significant improvement of physical and mental wellbeing, outdoor physical activity significantly improves the visuo-spatial body map during development.Conclusion:In conclusion,for the first time, we have demonstrated that in school-aged children outdoor physical activity as compared toindoor physical activity improves the structural body representation. These findings are discussed for a better understanding of body representation development and physical activity in indoor and outdoor environments.Also, considering the possible impact of body processing on cognition, this data is discussed in the light of the role of the practice of sportin the educational context
Levantamento de fungos associados ao declĂnio e morte de videiras em mudas comerciais.
O declĂnio e morte de videiras Ă© um problema em nĂvel mundial e que vem se agravando tambĂ©m no Brasil. No Rio Grande do Sul, muitos vinhedos já foram eliminados e renovados com mudas feitas na prĂłpria propriedade ou adquiridas em viveiros. No entanto, essas mudas apesar de aparente qualidade fisiolĂłgica e fitossanitária, podem ser mais uma forma de dispersĂŁo desses fungos, visto que, sintomas da presença dos fungos causadores de doenças de tronco podem nĂŁo ser perceptĂveis externa e internamente na muda.(Embrapa Uva e Vinho. Documentos, 99
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