Dissonance-Based Eating Disorder Prevention for Body-Dissatisfied Brazilian Cisgender Gay and Bisexual Men: A Randomized Controlled Trial With a 1-Year Follow-Up.

OBJECTIVE: Gay and bisexual men are at an increased risk for eating disorders (EDs) and muscle dysmorphia (MD) compared with their heterosexual counterparts. Existing dissonance-based (DB) EDs prevention programs for this population have been evaluated in the United States; however, these programs have not been evaluated in the Brazilian context. Thus, we investigated the feasibility, acceptability, and efficacy of a DB ED prevention program (i.e., the PRIDE Body Project) among Brazilian cisgender gay and bisexual men. METHOD: Eligible men were randomly assigned to either a DB intervention (n = 74) condition or an assessment-only control (AOC) condition (n = 75). Participants completed measures assessing ED and MD risk and protective factors at baseline, post-intervention, 1-month, 6-month, and 1-year follow-up. Those in the intervention condition also completed acceptability measures. RESULTS: Feasibility and acceptability ratings were highly favorable. Regarding efficacy, post-intervention results were not significant, except for self-objectification, which showed a significantly greater decrease in the DB condition compared with the AOC condition at all time-points of follow-ups (Cohen's d = -0.31 to -0.76). At follow-up, the DB condition showed significantly greater decreases in appearance-ideal internalization, drive for muscularity, self-objectification, ED and MD symptoms at 1-month, 6-month, and 1-year follow-ups (d = -0.33 to -0.92) compared with the AOC condition. Significant increases were observed in the DB compared with the AOC condition for body appreciation at 1-month, 6-month, and 1-year follow-ups (d = 0.31-0.81). DISCUSSION: Results support the feasibility, acceptability, and efficacy of the PRIDE Body Project up to 1-year in Brazilian cisgender gay and bisexual men. TRIAL REGISTRATION: Brazilian Registry of Clinical Trials (ReBEC; available at http://www.ensaiosclinicos.gov.br/) number of registration: RBR-62fctqz.

Intraguild processes drive space-use patterns in a large-bodied marine predator community.

Interspecific interactions, including predator-prey, intraguild predation (IGP) and competition, may drive distribution and habitat use of predator communities. However, elucidating the relative importance of these interactions in shaping predator distributions is challenging, especially in marine communities comprising highly mobile species. We used individual-based models (IBMs) to predict the habitat distributions of apex predators, intraguild (IG) prey and prey. We then used passive acoustic telemetry to test these predictions in a subtropical marine predator community consisting of eight elasmobranch (i.e. shark and ray) species in Bimini, The Bahamas. IBMs predicted that prey and IG prey will preferentially select habitats based on safety over resources (food), with stronger selection for safe habitat by smaller prey. Elasmobranch space-use patterns matched these predictions. Species with predator-prey and asymmetrical IGP (between apex and small mesopredators) interactions showed the clearest spatial separation, followed by asymmetrical IGP among apex and large mesopredators. Competitors showed greater spatial overlap although with finer-scale differences in microhabitat use. Our study suggests space-use patterns in elasmobranchs are at least partially driven by interspecific interactions, with stronger spatial separation occurring where interactions include predator-prey relationships or IGP.

Relationship between Smoking and Vocal Self-perception of Trans Women

Objective: To verify the relationship between smoking, age, schooling, and the vocal self-perception of trans women. Methods: Cross-sectional observational quantitative study conducted with 24 trans women over 18 years old, living in their affirmed gender for a minimum of 6 months. Data collection involved selected questions from the translated and authorized Portuguese version of the Trans Woman Voice Questionnaire (TWVQ) and information regarding age, education, occupation, and smoking status. All variables were analyzed descriptively, and the association with smoking was assessed using Pearson's Chi-square, Fisher's Exact, Student's T, and Mann-Whitney tests, with a significance level of 5%. Results: The mean age of trans women was 28.2 +/- 6.5 years (range: 21 - 48). Most participants (41.6%) had completed their high school education and pursued diverse careers. Regarding smoking habits, 58.3% of women were either current smokers or had smoked at least 100 cigarettes in their lifetime. A statistically significant association was found between smoking and age (p = 0.001), with smokers having a lower average age (24.9 years) compared to nonsmokers (32.9 years). However, no statistical significance was observed between smoking, education, and self-perception of vocal femininity. Only 9 (37.5%) trans women perceived their voices as feminine, while 17 (70.7%) desired a more feminine-sounding voice. Limitation: The limited sample size in this study may have constrained the ability to detect significant differences between the analyzed groups using statistical tests. Conclusion: The smoking prevalence was notably high among younger trans women. However, there was no statistically significant difference in vocal self-perception between those who smoked and those who did not. The majority of trans women expressed a desire for their voices to sound more feminine, particularly among smokers.

Objetivo: Verificar la relación entre el tabaquismo, edad, escolaridad y la autopercepción vocal de mujeres trans. Métodos: Estudio observacional transversal cuantitativo realizado con 24 mujeres trans mayores de 18 años, que viven en su género afirmado durante 6 meses. Para la recolección de datos se utilizaron preguntas seleccionadas de la versión portuguesa traducida y autorizada del Trans Woman Voice Questionnaire (TWVQ) y datos sobre edad, educación, ocupación y tabaquismo. Todas las variables se analizaron descriptivamente y la asociación con el tabaquismo se realizó mediante las pruebas Chi-cuadrado de Pearson, Exacta de Fisher, T de Student y Mann Whitney, con un nivel de significación del 5%. Resultados: La edad promedio de las mujeres trans fue de 28,2 +/- 6,5 (rango 21 - 48). La mayoría de las participantes (41,6%) había terminado la escuela secundaria con carreras muy diversas. Respecto al tabaquismo, el 58,3% de las mujeres fuman actualmente o han fumado al menos 100 cigarrillos en su vida. Hubo una asociación estadísticamente significativa entre el tabaquismo y la edad (p = 0,001), en la que la edad promedio entre los fumadores (24,9 años) fue menor que la de los no fumadores (32,9 años). No hubo significación estadística entre el tabaquismo, la educación y la autopercepción vocal. Solo 9 (37,5%) mujeres trans actualmente consideran su voz femenina y 17 (70,7%) dijeron que la voz ideal podría sonar más femenina. Limitación: La pequeña casuística puede haber limitado la identificación de diferencias entre los grupos analizados a través de pruebas estadísticas. Conclusión: El tabaquismo fue alto entre las mujeres trans, especialmente las más jóvenes. La autopercepción vocal no fue estadísticamente diferente entre los grupos de fumadores y no fumadores. La mayoría de las mujeres trans dijeron que sus voces podrían sonar más femeninas, especialmente las fumadoras.

A Bayesian spatial voting model to characterize the legislative behavior of the Colombian Senate 2010-2014.

This paper characterizes the legislators voting behavior in the Colombian Senate 2010-2014, by implementing a one-dimensional standard Bayesian ideal point estimator via Markov chain Monte Carlo algorithms. Our main goal is to retrieve the political preferences of legislators from their roll-call voting records, which individualizes the electoral behavior of the legislative chamber. Furthermore, we conclude about the nature of the latent trait underlying the deputies voting decisions and the legislators locations in political space. Finally, we also offer several methodological and theoretical tools to guide the analysis of nominal voting data in the context of unbalanced parliaments (multi-party systems), taking as reference the particular case of the Colombian Senate.

Sex and Body Mass Index differences after one-year follow-up of an eating disorders risk factors universal prevention intervention in university students in Mexico City / Diferencias por sexo e índice de masa corporal a un año de seguimiento de una intervención de prevención universal para disminuir factores de riesgo para los trastornos de la conducta alimentaria en estudiantes universitarios de la Ciudad de México

Abstract Introduction Interventions based on cognitive dissonance theory are the most effective for preventing eating disorders. Objective To identify the changes at one year follow-up of a universal prevention intervention in disordered eating behaviors (DEB), thin-ideal internalization (TII), and drive for muscularity (DM). Method A pre-experimental, pretest-posttest study was conducted on 602 university student subjects (76.1% women and 23.9% men) with an average age of 20.74 years at a public (30.6%) and a private university (69.4%) in Mexico City. A Split Plot ANOVA was performed with the intrasubject variable equal to each measurement (pretest, posttest, and follow-up), as well as the sex and body mass index (BMI) intersubject variables to analyze whether there was a significant interaction between these variables and the changes in dependent variables, as well as the changes through each measurement by group. Results In the intrasubject analyses, statistically significant differences were found for DEB through the various measurements, without taking the interactions into account. Statistically significant interactions were observed between each measurement and BMI, and between each measurement and sex and BMI for the DM variable. Discussion and conclusion Since a reduction of TII in women and DM in men was achieved, together with a decrease in DEB in women, the workshop can be said to have fully achieved its objectives for women and partly so for men.

Resumen Introducción Las intervenciones basadas en la teoría de la disonancia cognoscitiva son las más efectivas para la prevención de los trastornos de la conducta alimentaria. Objetivo Conocer los cambios a un año de seguimiento de una intervención de prevención universal en las conductas alimentarias de riesgo (CAR), interiorización del ideal estético de la delgadez (IED) y la motivación por la musculatura (MM). Método Se llevó a cabo un estudio pre-experimental pretest-postest en 602 (76.1% mujeres y 23.9% hombres) sujetos estudiantes universitarios con una edad promedio de 20.74 años en una universidad pública (30.6%) y una privada (69.4%) de la Ciudad de México. Se realizó un ANOVA split plot con la variable intrasujetos igual a cada medición (pretest, postest y seguimiento) así como el sexo y el índice de masa corporal (IMC) variables intersujetos, para analizar si existía una interacción significativa entre dichas variables y los cambios sobre las variables dependientes, así como los cambios a través de cada medición por grupo. Resultados en los análisis intrasujetos se encontraron diferencias estadísticamente significativas para las CAR a través de las distintas mediciones, sin tomar en cuenta las interacciones. Se observaron interacciones estadísticamente significativas entre cada medición y el IMC, y entre cada medición con el sexo y el IMC para la variable MM. Discusión y conclusión Se logró la reducción de la IED en las mujeres y de la MM en los hombres, así como la disminución de las CAR en las mujeres por lo que se considera que el taller logra sus objetivos para las mujeres y parcialmente para los varones.

Uma leitura psicanalítica sobre o consumo de manipulações corporais na contemporaneidade / Une lecture psychanalytique sur la consommation des manipulations corporelles à l'époque contemporaine / A psychoanalytical reading on the consumption of body manipulations in contemporary times

O presente artigo visa abordar o fenômeno contemporâneo do consumo de manipulações corporais do tipo estético a partir da teoria e da clínica psicanalíticas. Nossa hipótese de pesquisa é que a menor potência do ideal do eu em sua vertente de interdito afeta a consistência da imagem corporal, culminando em um sofrimento psíquico provocado pelo desregramento pulsional. Indagamos se a intervenção no corpo poderia apaziguar a relação imaginária através de uma idealização do corpo vendida como mercadoria

Cet article vise à aborder le phénomène contemporain de consommation de manipulations corporelles de type esthétique en s'appuyant sur la théorie et la clinique psychanalytiques. Notre hypothèse de recherche est que la puissance inférieure de l'Idéal du Moi dans son aspect d'interdit affecte la cohérence de l'imagecorporelle, culminant dans la souffrance psychique causée par le trouble instinctif. Nous nous sommes demandé si l'intervention sur le corps pouvait apaiser la relation imaginaire par une idéalisation du corps vendu comme une marchandise

This article aims to address the contemporary phenomenon of consumption of body manipulations of the aesthetic type based on psychoanalytic theory and clinics. Our research hypothesis is that the lower power of the ego ideal in its interdict aspect affects the consistency of the body image, culminating in psychic suffering caused by instinctual disorder. We asked whether intervention in the body could appease the imaginary relationship through an idealization of the body sold as a merchandise.

Amino Acid Requirements for Nile Tilapia: An Update.

This review aims to consolidate the relevant published data exploring the amino acid (AA) requirements of Nile tilapia, Oreochromis niloticus, and to reach a new set of recommendations based on those data. There are still inconsistencies in lysine, sulfur-containing AA, threonine, tryptophan, branched-chain AA, and total aromatic AA recommendations in data that have appeared since 1988. This review finds that strain, size, basal diet composition, and assessment method may have contributed to the inconsistencies in AA recommendations. Currently, the expansion of precision AA nutrition diets for Nile tilapia is receiving more attention because of the demand for flexibility in widespread ingredient substitutions which will allow compliance with environmentally sustainable principles. Such approaches involve changes in diet ingredient composition with possible inclusions of non-bound essential and non-essential AAs. Increasing the inclusion of non-bound AAs into Nile tilapia diets may modify protein dynamics and influence AA requirements. Emerging evidence indicates that not only essential but also some non-essential amino acids regulate growth performance, fillet yield, and flesh quality, as well as reproductive performance, gut morphology, intestinal microbiota, and immune responses. Thus, this review considers current AA recommendations for Nile tilapia and proposes refinements that may better serve the needs of the tilapia industry.

What Makes a Beautiful Buttock Beautiful? A Case-Control Study Comparing Buttocks Models versus Normal Women by Magnetic Resonance Imaging, Photography and Anthropometry.

OBJECTIVES: To describe characteristics of women with aesthetically ideal buttocks and differentiate them from women with normal buttocks. METHODS: Case-control study comparing anatomy of women with ideal buttocks (buttocks models) to women with normal buttocks using magnetic resonance images, anthropometric measurements and photography. RESULTS: Comparing to normal women, buttocks models have a narrower waist, narrower iliac crest, wider C point, wider hips and bigger and thicker gluteus maximus muscle (GMM). A bigger GMM adds more projection to the C point, point of maximum projection in the lateral view is 2.7 cm higher than the pubic bone. The amount of subcutaneous fat was equal in models and controls. CONCLUSIONS: Our study provides new knowledge regarding the tridimensional aspects of the beauty of the buttocks area. A beautiful buttock is a conjunction of adequate bony shape, muscle development, subcutaneous fat layer, and tight skin. Comparing to normal women, buttocks models have a narrower waist, narrower iliac crest, wider C point, wider hips and bigger and thicker Gluteus Maximus Muscle. Accurate understanding of the aesthetic goals in a given patient can guide surgical technique. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Chemotherapy and Anticancer Drugs Adjustment in Obesity: A Narrative Review.

BACKGROUND: Obese individuals have higher rates of cancer incidence and cancer- related mortality. The worse chemotherapy outcomes observed in this subset of patients are multifactorial, including the altered physiology in obesity and its impact on pharmacokinetics, the possible increased risk of underdosing, and treatment-related toxicity. AIMS: The present review aimed to discuss recent data on physiology, providing just an overall perspective and pharmacokinetic alterations in obesity concerning chemotherapy. We also reviewed the controversies of dosing adjustment strategies in adult and pediatric patients, mainly addressing the use of actual total body weight and ideal body weight. METHODS: This narrative review tried to provide the best evidence to support antineoplastic drug dosing strategies in children, adolescents, and adults. RESULTS: Cardiovascular, hepatic, and renal alterations of obesity can affect the distribution, metabolism, and clearance of drugs. Anticancer drugs have a narrow therapeutic range, and variations in dosing may result in either toxicity or underdosing. Obese patients are underrepresented in clinical trials that focus on determining recommendations for chemotherapy dosing and administration in clinical practice. After considering associated comorbidities, the guidelines recommend that chemotherapy should be dosed according to body surface area (BSA) calculated with actual total body weight, not an estimate or ideal weight, especially when the intention of therapy is the cure. CONCLUSION: The actual total body weight dosing appears to be a better approach to dosing anticancer drugs in both adults and children when aiming for curative results, showing no difference in toxicity and no limitation in treatment outcomes compared to adjusted doses.

Threonine-to-lysine ratio in laying hens: physiological parameters and organ weight

The objective of this study was to evaluate the effect of threonine:digestible lysine ratio in the diet on the physiological variablesand weight of organs of light laying hens. Two hundred and ten 47 week-old Dekalb White laying henswere distributed in a completely randomized design, with five levels of threonine (0.507; 0.552; 0.597; 0.642 and 0.677%) and seven replicates of six birds each. The experimental period was 10 weeks, totaling 62 days and more eight days for the animals to adapt. The physiological parameters of cloacal temperature (CT), respiratory rate (RR) and average surface temperature (AST) were recorded weekly (7:00 am, 10:00 am, 1:00 pm, 4:00 pm, and 7:00 pm); after solid and water fasting,the birds were slaughtered to assess the absolute weight of the organs. The time of day influenced (p < 0.05) the physiological parameters RR and AST, and CT showed a significant effect (p < 0.05) of increasing levels of digestible threonine. The total weight of the pancreas, proventriculus and lung showed a significant effect (p < 0.05) of the increase in the levels of digestible threonine. The respiratory rate is affected by the levels of threoninein the diet. The 0.687% level promoted hypertrophy of the pancreas, proventriculus and lung, promoting more significant activity of these organs.(AU)

O luto da ciência ideal / The mourning of ideal science / Le deuil de la science idéale / El duelo de la ciencia ideal

Resumo A ciência moderna tem sido objeto de idealizações desde sua emergência, as quais parecem perdurar mesmo após revisões e críticas presentes na filosofia da ciência contemporânea. Isso indica que parte das tentativas de readequação da imagem que se constrói sobre a ciência - e dos discursos que circulam sobre ela - não parece ter efeito. Propomos, neste artigo, que essas dificuldades resultam, em parte, da complexidade em lidar com os investimentos libidinais dos processos de idealização. Isso é indicado com base na teoria psicanalítica e na filosofia da ciência, sendo seguido por um trabalho conceitual sobre os mecanismos atuantes em processos identificatórios e nos possíveis efeitos da perda de um ideal, sustentando a necessidade de realização de um luto. Assim, afirmamos que desidealizar a ciência é, sobretudo, uma maneira de fortalecê-la.

Abstract Modern science has been object of idealizations since its appearance, which persist even after revisions and criticisms present in the contemporary philosophy of science. This indicates that many attempts of readjusting the image constructed about science - and the discourses about it - seem to have no effect. Thus, we propose in this article that these difficulties result, in part, from the complexity of dealing with libidinal investments of the idealization processes. This is indicated based on psychoanalytic theory and philosophy of science, being followed by a conceptual work on the mechanisms that act in identification processes and on the possible effects of the loss of an ideal, sustaining the need for mourning. Therefore, we affirm that "de-idealizing" science is, above all, a way to strengthen it.

Résumé La science moderne a fait l'objet d'idéalisations depuis son émergence, qui semblent perdurer même après les révisions et les critiques présentes dans la philosophie de la science contemporaine. Cela indique qu'une partie des tentatives de réajustement de l'image que l'on se fait de la science - et des discours qui circulent à son sujet - ne semblent pas avoir d'effet. Par conséquent, nous proposons dans cet article que ces difficultés résultent, en partie, de la complexité à traiter les investissements libidinaux des processus d'idéalisation. Ceci s'appuie sur la théorie psychanalytique et la philosophie des sciences, suivi d'un travail conceptuel sur les mécanismes agissant dans les processus d'identification et sur les effets possibles de la perte d'un idéal, soutenant le besoin de deuil. Ainsi, nous affirmons que la désidéalisation de la science est, avant tout, une manière de la renforcer.

Resumen Desde su surgimiento, la ciencia moderna viene siendo objeto de idealizaciones, las cuales parecen persistir, incluso, después de revisiones y críticas presentes en la filosofía de la ciencia contemporánea. Esto indica que parte de los intentos de reajustar la imagen que se construye sobre la ciencia - y los discursos sobre ella - parecen no surtir efecto. Este artículo plantea que estas dificultades provienen, en parte, de la complejidad de lidiar con las inversiones libidinales de los procesos de idealización. Esto se fundamenta en la teoría psicoanalítica y la filosofía de la ciencia, y sigue de un trabajo conceptual sobre los mecanismos que actúan en los procesos de identificación y sobre los posibles efectos de la pérdida de un ideal, que sostiene la necesidad del duelo. Por tanto, se defiende que desidealizar la ciencia es una forma de fortalecerla.

Primary health care, access to legal abortion and the notion of ideal victim among medical practitioners: The case of Chile.

In 2017, Chile enacted new legislation allowing access to legal abortion on three grounds, including rape. This article summarizes a qualitative, exploratory study that examined the role of primary healthcare services in the treatment of rape survivors in order to identify challenges and strengths in accessing legal abortion. The relevant data was collected through 19 semi-structured interviews conducted with key informants. The angry legislative debate that preceded enactment of the 2017 abortion bill evidenced the presence of strong biases against survivors of sexual violence. At the time, abortion opponents sought, inter alia, to discredit women who report rape, arguing that such claims would be misused to secure illicit abortions. In actual fact, however, rape has turned out to be the least used of all grounds for abortion, with girls and teens making up the smallest group of seekers. This article presents our findings on rape-related issues, notably the biases and shortcomings of medical practitioners regarding the new abortion law. We noted with concern their failure to screen for sexual violence and propensity to stigmatize the victims, a phenomenon that becomes exacerbated when it involves particularly vulnerable populations, such as girls and women who are poor, homeless, migrant, or who abuse alcohol or drugs. We further noted that prevalent stereotypes based on the notion of the ideal victim can revictimize girls and women and work to defeat the intent of the law. In Chile, the primary healthcare system is a key point of entry for abortion. In this highly charged arena, however, lack of political will, compounded by the COVID-19 pandemic, have kept health care practitioners from undergoing timely, gender-sensitive training on the new law, a key requirement for ensuring dignified care and respect for women's rights. We conclude that if government policy is to prevent multiple, intersectional discrimination, it must recognize the diversity of women and adapt to their specific contexts and singularities.

Effects of disordered eating behaviors and sedentary lifestyle prevention program in male and female Mexican adolescents / Efectos de un programa de prevención de conductas alimentarias de riesgo y sedentarismo en adolescentes mexicanos, hombres y mujeres

Abstract Introduction Adolescents are the group with the highest risk of developing disordered eating behaviors (DEB). Preventing this problem is of the utmost importance due to the physical and psychological consequences. Objective To evaluate the effects of a universal prevention program for disordered eating behaviors (DEB), thin ideal internalization (TII), drive for muscularity (DM), and sedentary lifestyle among Mexican adolescents. Method A quasi-experimental study with repeated measures (pre-test, post-test, six-month, and one-year follow-up) was carried out in a non-probabilistic sample of 523 adolescents (46.7% of females) aged 15-19 years (Mage = 16.07). We worked in two private high schools, one of them was designed as control group (CG), and the other as intervention group (IG). For both, female and male adolescents', data were collected using the Brief Questionnaire for Disordered Eating Behaviors (BQDEB) and the short form of the International Physical Activity Questionnaire (IPAQ). To evaluate TII the Attitudes toward Body Figure Questionnaire was applied in females, while in males Drive for Muscularity Scale (DMS) was used. Results After one-year, repeated measures analyses of variance (ANOVAs) revealed a significant reduction of the mean DEBs scores both in female (p = .01) and male (p = .03) adolescents of the IG with respect to CG. In IG, females decreased significantly the mean TII score as well as the mean DM score in males. Physical Activity increased in IG females from pre-test to posttest; however, the effect was not maintained over time. Discussion and conclusion These findings have important implications for future interventions with Mexican adolescents. We must take sex differences into account to choose activities and strategies that will enhance the effects of the program.

Resumen Introducción Los adolescentes constituyen el grupo con mayor riesgo de desarrollar conductas alimentarias de riesgo (CAR). Prevenirlas es de suma importancia debido a las consecuencias físicas y psicosociales. Objetivo Evaluar los efectos de un programa de prevención universal en conductas alimentarias de riesgo (CAR), interiorización del ideal de delgadez (IID), obsesión por la musculatura (OM) y sedentarismo en adolescentes mexicanos. Método Estudio cuasi-experimental con medidas repetidas (pre-test, post-test, seguimiento a seis meses y un año) en una muestra no probabilística de 523 adolescentes (46.7% mujeres) de 15-19 años de edad (Medad = 16.07). Se trabajó en dos escuelas preparatorias privadas, una como grupo control (GC) y otra como grupo intervenido (GI). Para mujeres y hombres, los datos se recolectaron usando el Cuestionario Breve para Conductas Alimentarias de Riesgo (CBCAR) y la versión corta del Cuestionario Internacional de Actividad Física (IPAQ). Para evaluar el IID en mujeres, se utilizó el Cuestionario de Actitudes hacia la Figura Corporal (CAFC) y en hombres la Escala para Obsesión por la Musculatura (DMS). Resultados Después de un año, el ANOVA de medidas repetidas mostró una reducción significativa en la media de CAR, tanto en mujeres (p = .01) como en hombres (p = .03) del GI respecto al GC. En el GI, la media de IID en mujeres disminuyó significativamente, así como la media de OM en hombres. La actividad física aumentó en las mujeres del GI desde el pre-test hasta el post-test; sin embargo, el efecto no se mantuvo en el tiempo. Discusión y conclusión Estos hallazgos tienen implicaciones para futuras intervenciones con adolescentes mexicanos. Se deben tomar en cuenta las diferencias por sexo para elegir las actividades y las estrategias que potenciarían los efectos del programa.

Concepções e práticas sobre uma sociedade ideal: uma análise sobre representações sociais / Conceptions and practices about an ideal society: an analysis of social representations / Concepciones y prácticas sobre una sociedad ideal: un análisis de las representaciones sociales

As representações sociais consistem em princípios organizadores do pensamento social e, portanto, compreendem o conhecimento construído e compartilhado nas interações sociais. Este conhecimento possibilita a construção de posicionamentos e julgamentos direcionados a fatos sociais. A partir desta perspectiva, o objetivo da presente pesquisa foi conhecer as representações sociais de brasileiros sobre a sociedade ideal e sobre as ações a nível individual e governamental que esse grupo acreditam ser necessárias para a construção dessa sociedade. Os resultados indicaram que o posicionamento ideológico dos participantes se caracterizou, sobretudo, a partir da presença de valores igualitários, e que estes valores foram o ponto de ancoragem das representações sociais sobre a sociedade ideal e sobre as ações necessárias para obtê-la. (AU)

Social representations consist of organizing principles of social thinking and, therefore, comprise knowledge constructed and shared in social interactions. This knowledge enables the construction of positions and judgments directed to social facts. From this perspective, the objective of this research was to know the social representations of Brazilians about the ideal society and about the actions at individual and governmental level that this group believe are necessary for the construction of this society. The results indicated that the ideological positioning of the participants was characterized, above all, by the presence of egalitarian values and that these values were the anchor point of social representations about the ideal society and about the actions necessary to obtain it. (AU)

Las representaciones sociales consisten en principios ordenadores del pensa-miento social, y por lo tanto, comprenden el conocimiento construidoy compartido en las interacciones sociales. Este conocimiento torna posible la construcción de posiciones y juicios direccionados a factos sociales. Desde esta perspectiva, el objetivo de esta investigación fue conocer las representaciones sociales de brasileños acerca de la sociedad ideal y que acciones, a nivel indivi-dual y gubernamental, estos individuos piensan que pueden contribuir para la construcción de esta sociedad. Se verificó que el posicionamiento ideológico de los participantes se caracteriza sobre todo por la presencia de valores iguali-tarios y que estos valores fueron el punto de encorajen de las representaciones acerca de la sociedad ideal de las acciones necesarias para obtenerla. (AU)

Prevalencia de sobrepeso y obesidad. Problema de salud en la comunidad universitaria y politécnica ecuatoriana / Prevalence of overweight and obesity. Health problem in the Ecuadorian university and polytechnic community

RESUMEN Objetivo: Analizar investigaciones relacionados con la prevalencia de bajo peso, sobrepeso y obesidad en el ámbito universitario para determinar los indicadores de la determinación de este problema de salud. Método: Revisión descriptiva, la búsqueda bibliográfica se realizó a partir de las bases de datos como Scielo, Dialnet, Lilacs, Scopus. PubMed y Portal Regional de la BVS. Que permitió seleccionar 33 artículos científicos. Resultados y conclusiónes: A partir de las investigaciones consultadas los investigadores determinar que, en la mayoría de estas, se da a conocer resultados sobre la prevalencia de obesidad y sobrepeso, sin tener en cuenta el bajo peso y normopeso. Además, en las investigaciones abordadas para determinar la prevalencia de la obesidad y sobrepeso, se realiza a partir del IMC con los datos de la talla y peso corporal de los sujetos investigados y factores los factores sociodemográficos de la población investigada.

ABSTRACT Objective: To analyze research related to the prevalence of underweight, overweight and obesity in the university setting in order to determine the indicators of the determination of this health problem. Method: Descriptive review, the bibliographic search was carried out using databases such as Scielo, Dialnet, Lilacs, Scopus. PubMed and Regional Portal of the VHL. Which allowed the selection of 33 scientific articles. Results and conclusions: From the researches consulted, the researchers determined that, in most of these, results on the prevalence of obesity and overweight are reported, without taking into account underweight and normal weight. In addition, in the researches approached to determine the prevalence of obesity and overweight, it is done from the BMI with the data of the height and body weight of the investigated subjects and the sociodemographic factors of the investigated population.

Response of Laying Hens to Repletion and Depletion in Dietary Balanced Protein.

This study was carried out to investigate the response of laying hens given a repletion or depletion in dietary balanced protein (BP) during the laying phase period. At the beginning of the rearing period (eight w-old), four-hundred pullets were equally distributed and received one of two experimental feeds: 1-Low BP (L) and 2-High BP (H). For the laying period (19 to 102 w-old), four feeding programs were designed based on the same treatments for rearing phases (LL, HH, LH, HL), where subsequent letters indicate the feed received during the rearing and laying period, respectively. The performance responses, egg quality, and body composition were periodically collected during the laying period. Two-way ANOVA repeated measures analysis was applied to evaluate the data. Nonlinear regression models with groups were used to compare treatments in the laying phase, with the treatments being the group evaluated. All performance traits were somehow influenced by the level of BP in the feed (p < 0.050). Hens subjected to the repletion treatment (LH) demonstrated a recovery in performance after 38 w-old. The opposite result was observed for hens on the depletion treatment (HL). All egg components were affected by dietary BP (p < 0.050). Laying hens demonstrated a limited capacity to overcome a reduction in dietary BP during production, but they were able to recover from a previous deficient feed once they were given an opportunity to do so.

Sociocultural drivers of body image and eating disorder risk in rural Nicaraguan women.

OBJECTIVE: Technological and economic globalisation has been suggested as a cause of increasing rates of body dissatisfaction and eating disorders globally, especially as regards the impact of mass media on internalised body ideals. This process is rarely observed in action, however. The current work investigates multiple aspects of body ideals, body image, sociocultural attitudes and eating attitudes in 62 Creole and Mestizo women living in communities at differing stages of technological development on the Caribbean coast of Nicaragua METHOD/RESULTS: In Study 1, women used 3D avatar software to create their own 'ideal' body without the constraints of ready-made stimuli. Analyses of resulting avatars showed that components of the ideal body shape (upper and lower body curvaceousness) but not body size (body mass) were associated with levels of film and television consumption. In Study 2, women completed measures of variables in the sociocultural model of eating disorder risk. As expected, body dissatisfaction mediated the relationship between internalisation of sociocultural body ideals and pathological eating attitudes. In contrast, body appreciation reduced pathological eating attitudes, via reduced body dissatisfaction. Finally, Study 3 measured sociocultural influences, body image and eating attitudes at 2 or 3 timepoints per woman; body dissatisfaction covaried with pathological eating attitudes across time. Ethnicity varied in its effects across studies. DISCUSSION: Together these data show that even at early stages of media acculturation, women may show similar patterns of association between sociocultural internalisation, body dissatisfaction and eating disorder risk as in high income nations. However, they also demonstrate unique aspects of this population's body shape ideals, and the independent protective effect of body appreciation.

Body dissatisfaction and eating disorders are increasing on a global scale. It has been suggested that increasing access to globalised media maybe one factor in rising risk of eating disorders in low- and middle-income countries. We examined 3-dimensional body ideals, body satisfaction, and eating disorder risk in a population with relatively recent access to mass media. We find that although women in these communities maintain higher body weight ideals, and greater body appreciation, than Western women, those women who are internalising globalised cultural messaging about appearance are at greater risk of body dissatisfaction and, in turn, increased risk of eating disorders. This was true both when comparing between women and looking at how individual women's attitudes varied over time. These data show that cultural messaging about appearance has implications for body image and eating disorder risk even in populations which do not have a long history of promoting thin ideals.

Ideal Cardiovascular Health in adolescents: Findings from Study of Cardiovascular Risks in Adolescents.

BACKGROUND AND AIM: We assessed the Ideal Cardiovascular Health (CVH) in Brazilian adolescents according to demographics and socioeconomic characteristics. METHODS AND RESULTS: This is a cross-sectional study with data from the Study of Cardiovascular Risks in Adolescents (ERICA), with a nationwide representative sample of 36,956 Brazilian adolescents, aged 12-17 years, enrolled in public and private schools. The CVH metrics considered were body mass index (BMI), physical activity, smoking, healthy diet score, blood pressure, fasting plasma glucose, and total cholesterol. The demographics and socioeconomic characteristics analyzed were sex, age, race/skin color, and type of school attended. The study design was considered, and the significant difference determined by the non-overlapping of 95% Confidence Interval. The mean ideal CVH score was 4.0, higher for females, adolescents aged 15-17 years, and students from private schools. The prevalence of ideal fasting plasma glucose was 96%, of non-smoking 95.6%, of ideal blood pressure 75.5%, of ideal BMI 73.2%, of ideal total cholesterol 55.4%, of ideal physical activity 45.2%, and only 0.5% had an ideal diet. The prevalence of ideal CVH metrics varied according to demographics and socioeconomic characteristics. CONCLUSION: Females, older adolescents, and students who attended private school had a better CVH. Demographics and socioeconomic characteristics were associated with CVH metrics. The low ideal proportions found for diet and physical activity are of concern and reinforce the need for food and nutritional educational actions designed to promote healthy behaviors in adolescence to prevent the development of cardiovascular diseases.

Current Medical Treatment for Alcohol-Associated Liver Disease.

Alcohol-associated liver disease is one of the main causes of chronic liver disease. It comprises a clinical-histologic spectrum of presentations, from steatosis, steatohepatitis, to different degrees of fibrosis, including cirrhosis and severe necroinflammatory disease, called alcohol-associated hepatitis. In this focused update, we aim to present specific therapeutic interventions and strategies for the management of alcohol-associated liver disease. Current evidence for management in all spectra of manifestations is derived from general chronic liver disease recommendations, but with a higher emphasis on abstinence and nutritional support. Abstinence should comprise the treatment of alcohol use disorder as well as withdrawal syndrome. Nutritional assessment should also consider the presence of sarcopenia and its clinical manifestation, frailty. The degree of compensation of the disease should be evaluated, and complications, actively sought. The most severe acute form of this disease is alcohol-associated hepatitis, which has high mortality and morbidity. Current treatment is based on corticosteroids that act by reducing immune activation and blocking cytotoxicity and inflammation pathways. Other aspects of treatment include preventing and treating hepatorenal syndrome as well as preventing infections although there is no clear evidence as to the benefit of probiotics and antibiotics in prophylaxis. Novel therapies for alcohol-associated hepatitis include metadoxine, interleukin-22 analogs, and interleukin-1-beta antagonists. Finally, granulocyte colony-stimulating factor, microbiota transplantation, and gut-liver axis modulation have shown promising results. We also discuss palliative care in advanced alcohol-associated liver disease.

Modeling Human Visual Search in Natural Scenes: A Combined Bayesian Searcher and Saliency Map Approach.

Finding objects is essential for almost any daily-life visual task. Saliency models have been useful to predict fixation locations in natural images during a free-exploring task. However, it is still challenging to predict the sequence of fixations during visual search. Bayesian observer models are particularly suited for this task because they represent visual search as an active sampling process. Nevertheless, how they adapt to natural images remains largely unexplored. Here, we propose a unified Bayesian model for visual search guided by saliency maps as prior information. We validated our model with a visual search experiment in natural scenes. We showed that, although state-of-the-art saliency models performed well in predicting the first two fixations in a visual search task ( 90% of the performance achieved by humans), their performance degraded to chance afterward. Therefore, saliency maps alone could model bottom-up first impressions but they were not enough to explain scanpaths when top-down task information was critical. In contrast, our model led to human-like performance and scanpaths as revealed by: first, the agreement between targets found by the model and the humans on a trial-by-trial basis; and second, the scanpath similarity between the model and the humans, that makes the behavior of the model indistinguishable from that of humans. Altogether, the combination of deep neural networks based saliency models for image processing and a Bayesian framework for scanpath integration probes to be a powerful and flexible approach to model human behavior in natural scenarios.