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Assessing the role of body mass and sex on apparent adult survival in polygynous passerines: a case study of cetti’s warblers in central Portugal

Monticelli, David; Araujo, Pedro M.; Hines, James E.; Tenreiro, Paulo Q.; Silva, Luis P.; Ramos, Jaime A.
Fonte: Nordic Society Oikos Publicador: Nordic Society Oikos
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.08%
Adult survival, an important fi tness component, is usually 1) lower in lighter individuals due to their reduced ability to survive winter conditions compared to heavier ones, especially in resident species at northern temperate latitudes and 2) lower in females compared with males due to higher reproductive costs incurred by females. In this paper, a capture – mark – recapture dataset of 649 cetti ’ s warblers Cettia cetti ringed seasonally at two wetlands in central Portugal over an 11-yr period (2000 – 2010) was modelled in a multi-state framework to examine the infl uence of these individual covariates on apparent adult survival, while controlling for the presence of transient individuals in our study area. Th e probability of change in mass state ( ψ Light → Heavy , ψ Heavy → Light ) during the annual cycle was also estimated. Overall, birds survived better during spring – summer (breeding/moulting periods) compared with autumn – winter, but there was no eff ect of body mass on apparent adult survival probability. Th e modelling detected a signifi cant interaction between sex and season, in which resident females survived better than resident males in spring – summer ( φ RF 0.857 0.117 and φ RM 0.698 0.181) while the opposite pattern was found in autumn – winter ( φ RM 0.440 0.086 and φ RF 0.339 0.084). In addition...

Survival, Causes of Death, and Prognostic Factors in Systemic Sclerosis: Analysis of 947 Brazilian Patients

Barros, Percival D. Sampaio; Bortoluzzo, Adriana B.; Marangoni, Roberta G.; Rocha, Luiza F.; Del Rio, Ana Paula T.; Samara, Adil M.; Yoshinari, Natalino H.; Marques-Neto, Joao Francisco
Fonte: J RHEUMATOL PUBL CO; TORONTO Publicador: J RHEUMATOL PUBL CO; TORONTO
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.13%
Objective. To analyze survival, prognostic factors, and causes of death in a large cohort of patients with systemic sclerosis (SSc). Methods. From 1991 to 2010, 947 patients with SSc were treated at 2 referral university centers in Brazil. Causes of death were considered SSc-related and non-SSc-related. Multiple logistic regression analysis was used to identify prognostic factors. Survival at 5 and 10 years was estimated using the Kaplan-Meier method. Results. One hundred sixty-eight patients died during the followup. Among the 110 deaths considered related to SSc, there was predominance of lung (48.1%) and heart (24.5%) involvement. Most of the 58 deaths not related to SSc were caused by infection, cardiovascular or cerebrovascular disease, and cancer. Male sex, modified Rodnan skin score (mRSS) > 20, osteoarticular involvement, lung involvement, and renal crisis were the main prognostic factors associated to death. Overall survival rate was 90% for 5 years and 84% for 10 years. Patients presented worse prognosis if they had diffuse SSc (85% vs 92% at 5 yrs, respectively, and 77% vs 87% at 10 yrs, compared to limited SSc), male sex (77% vs 90% at 5 yrs and 64% vs 86% at 10 yrs, compared to female sex), and mRSS > 20 (83% vs 90% at 5 yrs and 66% vs 86% at 10 yrs...

Sex ratio and dynamic behavior in populations of the exotic blowfly Chrysomya albiceps (Diptera, Calliphoridae)

Serra, H.; Godoy, W. A. C.; Von Zuben, F. J.; Von Zuben, C. J.; Reis, S. F.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: 347-353
ENG
Relevância na Pesquisa
36.11%
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); A razão sexual é um componente essencial da biologia de organismos a ser considerado em crescimento populacional. Chrysomya albiceps é uma espécie de mosca varejeira que exibe um desvio na razão sexual em relação à proporção 1:1. Neste estudo avaliamos o impacto de alterações na razão sexual sobre o comportamento dinâmico de C. albiceps utilizando um modelo matemático dependente da densidade que incorpora parâmetros demográficos como sobrevivência e fecundidade. Os parâmetros foram obtidos por regressão exponencial, com sobrevivência e fecundidade sendo estimadas experimentalmente em função da densidade larval. O diagrama de bifurcação gerado pelos resultados indicou a evolução de pontos de equilíbrio estável em função da razão sexual. A sucessão contínua dos valores da razão sexual resultou em uma hierarquia de pontos de equilíbrio estável produzida por bifurcações, resultando em regime caótico. Os parâmetros demográficos obtidos por regressão exponencial foram também mudados para valores máximos e mínimos, a fim de analisar a influência deles sobre o comportamento dinâmico da espécie, tendo a razão sexual como variável independente. Bifurcações com janelas de periodicidade intercaladas com o regime caótico também foram encontradas.; Sex ratio is an essential component of life history to be considered in population growth. Chrysomya albiceps is a blowfly species with a naturally biased sex ratio. In this study...

Morphology, sex ratio and gene expression of Day 14 in vivo and in vitro bovine embryos

MacHado, Grazieli M.; Ferreira, Allice R.; Guardieiro, Monique M.; Bastos, Michele R.; Carvalho, José O.; Lucci, Carolina M.; Diesel, Tiago O.; Sartori, Roberto; Rumpf, Rodolfo; Franco, Maurício M.; Dode, Margot A. N.
Fonte: Universidade Estadual Paulista Publicador: Universidade Estadual Paulista
Tipo: Artigo de Revista Científica Formato: 600-608
ENG
Relevância na Pesquisa
36.09%
The present study was designed to compare Day 14 bovine embryos that were produced entirely in vitro using the post-hatching development (PHD) system with in vivo-derived embryos without or with transient PHD culture from Day 7 to Day 14. Embryos on Day 14 were used for sex determination and gene expression analysis of PLAC8, KRT8, CD9, SLC2A1, SLC2A3, PGK1, HSF1, MNSOD, HSP70 and IFNT using real-time quantitative (q) polymerase chain reaction (PCR). First, Day 7 in vivo-and in vitro-produced embryos were subjected to the PHD system. A higher rate of survival was observed for in vitro embryos on Day 14. Comparing Day 14 embryos produced completely in vivo or completely in vitro revealed that the mean size of the former group was greater than that of the latter (10.29±1.83 vs 2.68±0.33mm, respectively). Expression of the HSP70 and SLC2A1 genes was down-and upregulated, respectively, in the in vitro embryos. The present study shows that in vitro embryos cultured in the PHD system are smaller than in vivo embryos and that of the 10 genes analysed, only two were differentially expressed between the two groups. These findings indicate that, owing to the poor survival rate, the PHD system is not reliable for evaluation of in vitro embryo quality. © 2013 CSIRO.

Survival, Causes of Death, and Prognostic Factors in Systemic Sclerosis: Analysis of 947 Brazilian Patients

Sampaio-Barros, Percival D.; Bortoluzzo, Adriana B.; Marangoni, Roberta G.; Rocha, Luiza F.; Del Rio, Ana Paula T.; Samara, Adil M.; Yoshinari, Natalino H.; Marques-Neto, Joao Francisco
Fonte: J Rheumatol Publ Co; Toronto Publicador: J Rheumatol Publ Co; Toronto
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.13%
Objective. To analyze survival, prognostic factors, and causes of death in a large cohort of patients with systemic sclerosis (SSc). Methods. From 1991 to 2010, 947 patients with SSc were treated at 2 referral university centers in Brazil. Causes of death were considered SSc-related and non-SSc-related. Multiple logistic regression analysis was used to identify prognostic factors. Survival at 5 and 10 years was estimated using the Kaplan-Meier method. Results. One hundred sixty-eight patients died during the followup. Among the 110 deaths considered related to SSc, there was predominance of lung (48.1%) and heart (24.5%) involvement. Most of the 58 deaths not related to SSc were caused by infection, cardiovascular or cerebrovascular disease, and cancer. Male sex, modified Rodnan skin score (mRSS) > 20, osteoarticular involvement, lung involvement, and renal crisis were the main prognostic factors associated to death. Overall survival rate was 90% for 5 years and 84% for 10 years. Patients presented worse prognosis if they had diffuse SSc (85% vs 92% at 5 yrs, respectively, and 77% vs 87% at 10 yrs, compared to limited SSc), male sex (77% vs 90% at 5 yrs and 64% vs 86% at 10 yrs, compared to female sex), and mRSS > 20 (83% vs 90% at 5 yrs and 66% vs 86% at 10 yrs...

Temperature and the progeny sex-ratio in Sciara ocellaris (Diptera, Sciaridae)

Nigro,Rogério G.; Campos,Maria Cristina C.; Perondini,André Luiz P.
Fonte: Sociedade Brasileira de Genética Publicador: Sociedade Brasileira de Genética
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2007 EN
Relevância na Pesquisa
36.14%
We found that the sex-ratio of an amphigenic strain of Sciara ocellaris varied widely from progenies with few males to progenies containing a larger proportion of males, with single-sex progenies being rare. The sex-ratio distributions were dependent on the temperature at which the stocks of flies were raised, with the sex-ratio distributions being symmetrical (i.e. about 50% males) at 18 °C and 20 °C while at the higher temperatures of 24 °C and 28 °C the distributions were skewed toward a high proportion of females with the mean proportion of males decreasing to about 30-37% per progeny. Temperature-shift experiments showed that high temperatures were effective only during the last stages of female pupal development plus a period after adult emergence, stages corresponding to oocyte maturation. When imagine females were exposed to temperatures as low as 12 °C the sex-ratio distributions of their progeny were skewed toward a high proportion of males per progeny. No differential fecundity was involved in these progeny sex-ratio modifications. Egg-to-adult survival was lower at 18 °C and 28 °C but no correlations with skewing in the sex ratio distributions were observed, indicating that modifications in progeny sex-ratio did not involve the differential survival of a particular sex.

Sex ratio and dynamic behavior in populations of the exotic blowfly Chrysomya albiceps (Diptera, Calliphoridae)

Serra,H.; Godoy,WAC.; Von Zuben,FJ.; Von Zuben,CJ.; Reis,SF.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/05/2007 EN
Relevância na Pesquisa
36.11%
Sex ratio is an essential component of life history to be considered in population growth. Chrysomya albiceps is a blowfly species with a naturally biased sex ratio. In this study, we evaluated the impact of changes in sex ratio on the dynamic behavior of C. albiceps using a density-dependent mathematical model that incorporated demographic parameters such as survival and fecundity. These parameters were obtained by exponential regression, with survival and fecundity being estimated experimentally as a function of larval density. Bifurcation diagram of the results indicated the evolution of stable equilibrium points as a function of sex ratio. A continually increasing sex ratio yielded a hierarchy of bifurcating stable equilibrium points that evolved into a chaotic regime. The demographic parameters obtained by exponential regression were also changed to maximum and minimum values in order to analyze their influence on dynamic behavior with sex ratio being considered as an independent variable. Bifurcations with periodicity windows between chaos regimes were also found.

Effect of estradiol-17β on the sex ratio, growth and survival of juvenile common snook (Centropomus undecimalis)

Carvalho,Cristina Vaz Avelar de; Passini,Gabriel; Costa,Wanessa de Melo; Vieira,Beatriz Nunes; Cerqueira,Vinicius Ronzani
Fonte: Editora da Universidade Estadual de Maringá - EDUEM Publicador: Editora da Universidade Estadual de Maringá - EDUEM
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2014 EN
Relevância na Pesquisa
36.12%
Sex control in fish is a promising technique for aquaculture, since it gives advantages associated with one sex. The aim of this study was to investigate the feminization of common snook (Centropomus undecimalis) by oral administration of two doses of estradiol-17β (50 and 100 mg E2 kg-1 feed) and control treatment for 45 days and to evaluate their effects on the sex ratio, growth and survival of common snook juveniles. After this period, fish were fed only with commercial feed without hormone supplementation. During the period of E2 administration, the control fish grew more than those in the other treatments. At the end of the experiment in the treatment with 50 mg E2 kg-1, 26.32% of the fish were male, 68.42% were female, and 5.26% were intersex. In the treatment with 100 mg E2 kg-1, 10% of the fish were male, and 90% were female. There was no difference in growth among the treatments after 11 months. This study showed that it is possible to obtain 90% common snook females using feeds with 100 mg E2 kg-1 for 45 days without impairing the fish growth or survival.

Stand Still, a Drosophila Gene Involved in the Female Germline for Proper Survival, Sex Determination and Differentiation

Pennetta, G.; Pauli, D.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /04/1997 EN
Relevância na Pesquisa
46.05%
We identified a new gene, stand still (stil), required in the female germline for proper survival, sex determination and differentiation. Three strong loss-of-function alleles were isolated. The strongest phenotype exhibited by ovaries dissected from adult females is the complete absence of germ cells. In other ovaries, the few surviving germ cells frequently show a morphology typical of primary spermatocytes. still is not required either for fly viability or for male germline development. The gene was cloned and found to encode a novel protein. still is strongly expressed in the female germ cells. Using P[stil(+)] transgenes, we show that stil and a closely localized gene are involved in the modification of the ovarian phenotypes of the dominant alleles of ovo caused by heterozygosity of region 49 A-D. The similarity of the mutant phenotypes of stil to that of otu and ovo suggests that the three genes function in a common or in parallel pathways necessary in the female germline for its survival, sex determination and differentiation.

Prevalence and correlates of survival sex among runaway and homeless youth.

Greene, J M; Ennett, S T; Ringwalt, C L
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /09/1999 EN
Relevância na Pesquisa
46.13%
OBJECTIVE: This study examined the prevalence and correlates of survival sex among runaway and homeless youths. METHODS: A nationally representative sample of shelter youths and a multicity sample of street youths were interviewed. RESULTS: Approximately 28% of street youths and 10% of shelter youths reported having participated in survival sex, which was associated with age, days away from home, victimization, criminal behaviors, substance use, suicide attempts, sexually transmitted disease, and pregnancy. CONCLUSIONS: Intensive and ongoing services are needed to provide resources and residential assistance to enable runaway and homeless youths to avoid survival sex, which is associated with many problem behaviors.

HIV risk profile of male street youth involved in survival sex

Haley, N; Roy, E; Leclerc, P; Boudreau, J; Boivin, J
Fonte: BMJ Group Publicador: BMJ Group
Tipo: Artigo de Revista Científica
Publicado em /12/2004 EN
Relevância na Pesquisa
55.99%
Objectives: To compare HIV risk factors of male street youth involved in survival sex with those of their never involved peers and to describe the sexual activities of the involved youths.

Community-based HIV prevention research among substance-using women in survival sex work: The Maka Project Partnership

Shannon, Kate; Bright, Vicki; Allinott, Shari; Alexson, Debbie; Gibson, Kate; Tyndall, Mark W;
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
Publicado em 08/12/2007 EN
Relevância na Pesquisa
46.2%
Substance-using women who exchange sex for money, drugs or shelter as a means of basic subsistence (ie. survival sex) have remained largely at the periphery of HIV and harm reduction policies and services across Canadian cities. This is notwithstanding global evidence of the multiple harms faced by this population, including high rates of violence and poverty, and enhanced vulnerabilities to HIV transmission among women who smoke or inject drugs. In response, a participatory-action research project was developed in partnership with a local sex work agency to examine the HIV-related vulnerabilities, barriers to accessing care, and impact of current prevention and harm reduction strategies among women in survival sex work. This paper provides a brief background of the health and drug-related harms among substance-using women in survival sex work, and outlines the development and methodology of a community-based HIV prevention research project partnership. In doing so, we discuss some of the strengths and challenges of community-based HIV prevention research, as well as some key ethical considerations, in the context of street-level sex work in an urban setting.

Sex Workers, Fem Queens, and Cross-Dressers: Differential Marginalizations and HIV Vulnerabilities Among Three Ethnocultural Male-to-Female Transgender Communities in New York City

Hwahng, Sel Julian; Nuttbrock, Larry
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /12/2007 EN
Relevância na Pesquisa
36.08%
This article describes 3 distinct ethnocultural male-to-female transgender communities in New York City: the low-income African American/Black1 and Latina(o) House Ball community; low-income, often undocumented immigrant Asian sex workers; and middle-class White cross-dressers. These communities are highly socially isolated from each other and are more connected to their ethnocultural contexts than to an abstract and shared transgender identity. Whereas previous research either has viewed male-to-female transgender people as one monolithic group or has separated them into abstract racial categories unconnected to their communities and lifestyles, this article positions them within specific social networks, cultures, neighborhoods, and lifestyles. With regard to HIV vulnerabilities, violence, and rape, House Ball community members seemed to engage in the riskiest form of survival sex work, whereas Asian sex workers seemed to engage in moderate-risk survival sex work. White cross-dressers seemed to engage in very low-risk recreational sex work.2

Estimating survival and capture probability of fur seal pups using multi-state mark-recapture models

Bradshaw, C.; Barker, R.; Harcourt, R.; Davis, L.
Fonte: American Society of Mammalogists Publicador: American Society of Mammalogists
Tipo: Artigo de Revista Científica
Publicado em //2003 EN
Relevância na Pesquisa
36.15%
We use a multistate mark–recapture model incorporating information on body mass, sex, time of capture, and natal colony to estimate the probabilities of survival, capture, and mass-state transition of New Zealand fur seal (Arctocephalus forsteri) pups from 3 sites (colonies) on Otago Peninsula, South Island, New Zealand. Apparent survival for a mean sampling interval of 47 days was high (≥0.850) after correcting for tag loss, and there was evidence that there were differences between sexes and among sites even after controlling for mass at capture. Survival did not differ among body-mass classes. Heavier pups had lower capture probabilities; however, differences in mass adequately explained any potential differences in capture probability due to sex. State-transition probabilities among mass classes also differed with time of capture, and between sexes and among sites. Although bias in estimates of survival probability is minimal when survival is high, heterogeneity in capture probabilities among different classes of individuals can bias estimates of pup growth rate and sex ratio. We recommend measuring mass of individuals and incorporating this and perhaps other pertinent information into multistate mark–recapture models when attempting to estimate survival and to determine the effect of capture probability on estimates of other life-history parameters.; Corey J. A. Bradshaw...

Review: Sex and the human placenta: Mediating differential strategies of fetal growth and survival

Clifton, V.
Fonte: W B Saunders Co Ltd Publicador: W B Saunders Co Ltd
Tipo: Artigo de Revista Científica
Publicado em //2010 EN
Relevância na Pesquisa
36.23%
There are known sex specific differences in fetal and neonatal morbidity and mortality. There are also known differences in birthweight centile with males generally being larger than females at birth. These differences are generally ignored when studying obstetric complications of pregnancy and the mechanisms that confer these differences between the sexes are unknown. Current evidence suggests sex specific adaptation of the placenta may be central to the differences in fetal growth and survival. Our research examining pregnancies complicated by asthma has reported sexually dimorphic differences in fetal growth and survival with males adapting placental function to allow for continued growth in an adverse maternal environment while females reduce growth in an attempt to survive further maternal insults. We have reported sex differences in placental cytokine expression, insulin-like growth factor pathways and the placental response to cortisol in relation to the complication of asthma during pregnancy. More recently we have identified sex specific alterations in placental function in pregnancies complicated by preterm delivery which were associated with neonatal outcome and survival. We propose the sexually dimorphic differences in growth and survival of the fetus are mediated by the sex specific function of the human placenta. This review will present evidence supporting this hypothesis and will argue that to ignore the sex of the placenta is no longer sound scientific practice.; V.L. Clifton

Climate and maternal effects modify sex ratios in a weakly dimorphic marsupial

Delean, J.; De'ath, G.; Marsh, H.
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica
Publicado em //2009 EN
Relevância na Pesquisa
36.28%
There is growing evidence that the sex ratios of wild vertebrate populations are determined by mechanisms that are directly influenced by environmental characteristics. The Trivers–Willard (TWH) and extrinsic modification (EMH) hypotheses postulate differing determinants of mammalian offspring sex ratios. TWH states that mothers allocate resources according to their current condition and sex-specific offspring costs. EMH states that environmental forces that affect maternal condition determine offspring sex ratios, independently of maternal tactics of sex-biased allocation. We statistically assessed support for each of these hypotheses using long-term life histories of the allied rock-wallaby, Petrogale assimilis; a continuously breeding, polygynous, weakly dimorphic marsupial. We showed that birth sex ratios were equal and independent of maternal and environmental conditions. However, secondary sex ratios were male-biased under good environmental conditions and for high quality mothers or mothers in good condition. Sex differences in offspring survival contributed to these biases: (1) environmental conditions strongly influenced survival to pouch emergence (in support of EMH) and (2) maternal quality affected survival to the end of maternal care (in support of TWH). Environmental effects on survival were more important than maternal factors over the entire period of maternal care and contributed most to male-biased sex ratios at pouch emergence. In contrast...

Antagonistic effect of helpers on breeding male and female survival in a cooperatively breeding bird

Paquet, Matthieu; Doutrelant, Claire; Hatchwell, Ben J.; Spottiswoode, Claire N.; Covas, Rita
Fonte: Wiley Publicador: Wiley
Tipo: Article; accepted version
EN
Relevância na Pesquisa
36.18%
This is the final version of the article. It first appeared from Wiley via http://dx.doi.org/10.1111/1365-2656.12377 Data are available from Dryad digital repository http://dx.doi.org/10.5061/dryad.mk44c; 1. Cooperatively breeding species are typically long-lived and hence, according to theory, are expected to maximise their lifetime reproductive success through maximising survival. Under these circumstances, the presence of helpers could be used to lighten the effort of current reproduction for parents to achieve higher survival. 2. In addition, individuals of different sexes and ages may follow different strategies, but whether male and female breeders and individuals of different ages benefit differently from the presence of helpers has often been overlooked. Moreover only one study that investigated the relationship between parental survival and the presence of helpers used Capture-Mark-Recaptures analyses (CMR). These methods are important since they allow us to account for the non-detection of individuals that are alive in the population but not detected, and thus the effects on survival and recapture probability to be disentangled. 3. Here we used multi-event CMR methods to investigate whether the number of helpers was associated with an increase in survival probability for male and female breeders of different ages in the sociable weaver Philetairus socius. In this species...

Estimating the potential survival gains by eliminating socioeconomic and sex inequalities in stage at diagnosis of melanoma

Rutherford, M. J.; Ironmonger, L.; Ormiston-Smith, N.; Abel, G. A.; Greenberg, D. C.; Lyratzopoulos, Georgios; Lambert, P. C.
Fonte: NPG Publicador: NPG
Tipo: Article; published version
EN
Relevância na Pesquisa
36.18%
This is the final published version. It first appeared at http://www.nature.com/bjc/journal/v112/n1s/full/bjc201550a.html.; BACKGROUND: Although inequalities in cancer survival are thought to reflect inequalities in stage at diagnosis, little evidence exists about the size of potential survival gains from eliminating inequalities in stage at diagnosis. METHODS: We used data on patients diagnosed with malignant melanoma in the East of England (2006-2010) to estimate the number of deaths that could be postponed by completely eliminating socioeconomic and sex differences in stage at diagnosis after fitting a flexible parametric excess mortality model. RESULTS: Stage was a strong predictor of survival. There were pronounced socioeconomic and sex inequalities in the proportion of patients diagnosed at stages III-IV (12 and 8% for least deprived men and women and 25 and 18% for most deprived men and women, respectively). For an annual cohort of 1025 incident cases in the East of England, eliminating sex and deprivation differences in stage at diagnosis would postpone approximately 24 deaths to beyond 5 years from diagnosis. Using appropriate weighting, the equivalent estimate for England would be around 215 deaths, representing 11% of all deaths observed within 5 years from diagnosis in this population. CONCLUSIONS: Reducing socioeconomic and sex inequalities in stage at diagnosis would result in substantial reductions in deaths within 5 years of a melanoma diagnosis.; This article is an independent research supported by different funding bodies...

Locked In. Interactions with the Criminal Justice and Child Welfare Systems for LGBTQ Youth, YMSM, and YWSW Who Engage in Survival Sex

Dank, Meredith; Yu, Lilly; Yahner, Jennifer; Pelletier, Elisabeth; Mora, Mitchyll; Conner, Brendan
Fonte: Universität Tübingen Publicador: Universität Tübingen
Tipo: Report (Bericht); info:eu-repo/semantics/other
EN
Relevância na Pesquisa
66.22%
In 2011, researchers from the Urban Institute launched a three-year study of lesbian, gay, bisexual, transgender, and queer or questioning (LGBTQ) youth; young men who have sex with men (YMSM); and young women who have sex with women (YWSW) engaged in survival sex in New York City. Working in partnership with the New York City–based organization Streetwise and Safe (SAS), researchers trained youth leaders to conduct in-depth interviews with a total of 283 youth who engaged in survival sex in New York City and self-identified as LGBTQ, YMSM, or YWSW. In February 2015, we released the first report in this series, which focused specifically on the experiences and needs of youth engaging in survival sex. In this report, we focus on the youths’ interactions with juvenile and criminal justice systems, in addition to the child welfare system, from the perspectives of both the youths and stakeholders involved in these systems. Locked In features data collected from youth respondents about their experiences of arrest and court involvement, in combination with in-depth interviews with 68 criminal justice, child welfare, and youth-serving professionals across 28 organizations.

Surviving the Streets of New York. Experiences of LGBTQ Youth, YMSM, and YWSW Engaged in Survival Sex

Dank, Meredith; Yahner, Jennifer; Madden, Kuniko; Bañuelos, Isela; Yu, Lilly; Ritchie, Andrea; Mora, Mitchyll; Conner, Brendan
Fonte: Universität Tübingen Publicador: Universität Tübingen
Tipo: Buch (Monographie); info:eu-repo/semantics/book
EN
Relevância na Pesquisa
66.18%
In 2011, researchers from the Urban Institute launched a three-year study of lesbian, gay, bisexual, transgender, and queer or questioning (LGBTQ) youth; young men who have sex with men (YMSM); and young women who have sex with women (YWSW) engaged in survival sex in New York City. Working in partnership with the New York City–based organization Streetwise and Safe (SAS), researchers trained youth leaders to conduct in-depth interviews with a total of 283 youths who engaged in survival sex in New York City and identified themselves as LGBTQ, YMSM, or YWSW. During these interviews, youth were asked a wide range of questions about their backgrounds and experiences. The information they shared paints a vivid picture of how they survive in the face of adversity, often dealing with issues rooted in poverty, homophobia, transphobia, racism, child abuse, and criminalization.