Latino Parents' Reactions to and Engagement With a Facebook Group-Based COVID-19 Vaccine Promotion Intervention: Mixed Methods Pilot Study.

BACKGROUND: Misinformation in Spanish on social media platforms has contributed to COVID-19 vaccine hesitancy among Latino parents. Brigada Digital de Salud was established to disseminate credible, science-based information about COVID-19 in Spanish on social media. OBJECTIVE: This study aims to assess participants' reactions to and engagement with Brigada Digital content that sought to increase COVID-19 vaccine uptake among US Latino parents and their children. METHODS: We conducted a 5-week intervention in a private, moderator-led Facebook (Meta Platforms, Inc) group with Spanish-speaking Latino parents of children aged ≤18 years (N=55). The intervention participants received 3 to 4 daily Brigada Digital posts and were encouraged to discuss the covered topics through comments and polls. To assess participants' exposure, reactions, and engagement, we used participants' responses to a web-based survey administered at 2 time points (baseline and after 5 weeks) and Facebook analytics to calculate the average number of participant views, reactions, and comments. Descriptive statistics were assessed for quantitative survey items, qualitative responses were thematically analyzed, and quotes were selected to illustrate the themes. RESULTS: Overall, 101 posts were published. Most participants reported visiting the group 1 to 3 times (22/55, 40%) or 4 to 6 (18/55, 33%) times per week and viewing 1 to 2 (23/55, 42%) or 3 to 4 (16/55, 29%) posts per day. Facebook analytics validated this exposure, with 36 views per participant on average. The participants reacted positively to the intervention. Most participants found the content informative and trustworthy (49/55, 89%), easy to understand, and presented in an interesting manner. The participants thought that the moderators were well informed (51/55, 93%) and helpful (50/55, 91%) and praised them for being empathic and responsive. The participants viewed the group environment as welcoming and group members as friendly (45/55, 82%) and supportive (19/55, 35%). The 3 most useful topics for participants were the safety and efficacy of adult COVID-19 vaccines (29/55, 53%), understanding child risk levels (29/55, 53%), and the science behind COVID-19 (24/55, 44%). The preferred formats were educational posts that could be read (38/55, 69%) and videos, including expert (28/55, 51%) and instructional (26/55, 47%) interviews. Regarding engagement, most participants self-reported reacting to posts 1 to 2 (16/55, 29%) or 3 to 4 (15/55, 27%) times per week and commenting on posts 1 to 2 (16/55, 29%) or <1 (20/55, 36%) time per week. This engagement level was validated by analytics, with 10.6 reactions and 3 comments per participant, on average, during the 5 weeks. Participants recommended more opportunities for engagement, such as interacting with the moderators in real time. CONCLUSIONS: With adequate intervention exposure and engagement and overall positive participant reactions, the findings highlight the promise of this digital approach for COVID-19 vaccine-related health promotion.

Ensuring fidelity: key elements to consider in disseminating a diabetes telemanagement program for underserved Hispanic/Latinos living with type 2 diabetes.

Background: The Hispanic/Latino population has greater risk (estimated >50%) of developing type 2 diabetes (T2D) and developing it at a younger age. The American Diabetes Association estimates costs of diagnosed diabetes in 2017 was $327 billion; with medical costs 2.3x higher than patients without diabetes. The purpose of this manuscript is to describe the methodology utilized in a randomized controlled trial aimed at evaluating the efficacy of a diabetes telemanagement (DTM) program for Hispanic/Latino patients with T2D. The intent is to provide information for future investigators to ensure that this study can be accurately replicated. Methods: This study was a randomized controlled trial with 240 participants. Eligible patients (Hispanic/Latino, aged 18+, living with T2D) were randomized to Comprehensive Outpatient Management (COM) or DTM. DTM was comprised of usual care, including routine clinic visits every three months, as well as: Biometrics (a tablet, blood glucose meter, blood pressure monitor, and scale); Weekly Video Visits (facilitated in the patient's preferred language); and Educational Videos (including culturally congruent diabetes self-management education and quizzes). COM consisted of usual care including routine clinic visits every three months. For this study, COM patients received a glucometer, glucose test strips, and lancets. Establishing a therapeutic nurse-patient relationship was a fundamental component of our study for both groups. First contact (post-enrollment) centered on ensuring that patients and caregivers understood the program, building trust and rapport, creating a non-judgmental environment, determining language preference, and establishing scheduling availability (including evenings and weekends). DTM were provided with a tablet which allowed for self-paced education through videos and weekly video visits. The research team and Community Advisory Board identified appropriate educational video content, which was incorporated in diabetes educational topics. Video visits allowed us to assess patient involvement, motivation, and nonverbal communication. Communicating in Spanish, and awareness of diverse Hispanic/Latino backgrounds was critical, as using relevant and commonly-used terms can increase adherence and improve outcomes. Shared decision-making was encouraged to make realistic health care choices. Conclusion: Key elements discussed above provide a framework for future dissemination of an evidence-based DTM intervention to meet the needs of underserved Hispanic/Latino people living with T2D.

A New Species of Cosmocerca Diesing, 1861 (Nematoda: Cosmocercidae) in Elachistocleis haroi Pereyra, Akmentins, Laufer, and Vaira, 2013 (Amphibia: Microhylidae) from South American Chaco.

PURPOSE: Cosmocercids are common nematodes that parasitize the digestive tract and lungs of amphibians and reptiles around the world. They are commonly found in leptodactylid and bufonid anurans in South America, primarily in Brazil and Argentina. This paper describes a new species of genus Cosmocerca based on specimens collected in a microhylid from the Dry Chaco ecoregion. METHODS: A total of 18 specimens of Elachistocleis haroi were collected in October 2011 in Chaco province and in December 2021 and March 2022 in Formosa province, Argentina, both areas of the Dry Chaco ecoregion. The morphology of the nematodes was studied in detail using light microscopy and scanning electron microscopy. RESULTS: One hundred and fifty-one nematodes were collected from the large intestines of E. haroi. Based on the morphology of the caudal papillae (rosette papillae and plectanes), the presence of two spicules and the absence of caudal alae in males, and the presence of two prodelphic ovaries in females, these specimens were allocated to the genus Cosmocerca. However, they presented unique characteristics that differentiate them from all known species. Cosmocerca wichiorum sp. nov. is similar to C. archeyi, C. australis, C. sardiniae, C. zugi, and C. leytensis by having four pairs of plectanes, but can be easily distinguished from all of them by the type, number, and arrangement of the precloacal (non-plectanes), adcloacal and postcloacal papillae, by the length of the spicules and by its different zoogeographical distribution. CONCLUSION: This is the 14th species of the genus Cosmocerca described in South America and the first one for the microhylid E. haroi from the Dry Chaco ecoregion.

Assessing Changes in COVID-19 Vaccine Uptake and Intentions among the Brigada Digital Latino Social Media Audience: A Repeated Cross-Sectional Study.

Background: U.S. Latinos experienced disproportionate COVID-19 impacts in terms of morbidity and mortality. Vaccination against COVID-19 is an important strategy for mitigating health impacts, and yet, vaccine uptake was slower among U.S. Latino adults compared to other racial/ethnic groups. Vaccine hesitancy has been a significant barrier within Latino communities, and exposure to misinformation has been associated with negative attitudes toward vaccination. While some COVID-19 mitigation efforts have included community-based outreach, few studies have explored the impact of community-based digital messaging in Spanish to counter COVID-19 misinformation, build trust, and promote vaccination. Methods: To address this gap, we conducted a one-year repeated cross-sectional study to assess changes in COVID-19 vaccine uptake, intentions, and perceived norms, as well as barriers to accessing reliable information and levels of trust in COVID-19 information sources among Latino adults exposed to Brigada Digital de Salud social media content. This culturally-tailored content disseminated on Facebook, Instagram, and X platforms was amplified by community health workers and partners, and focused on COVID-19 risk and prevention, vaccine safety and efficacy, and correcting related misinformation. Results: Statistically significant increases in COVID-19 vaccination, intentions to vaccinate children, and vaccination subjective norms were observed from May 2022 (wave 1) to April 2023 (wave 2). Among perceived difficulties accessing information, respondents indicated the most difficulty in judging the reliability of COVID-19 information in the media; however, a statistically significant decrease in perceived difficulty was observed between waves. With regard to trust in COVID-19 information sources, levels of trust were highest for healthcare providers in both waves. From wave 1 to wave 2, there were statistically significant increases in trust in the FDA to ensure COVID-19 vaccine safety and trust in the federal government to ensure child COVID-19 vaccine safety. Conclusions: Social media messaging by trusted community-based sources shows promise as a strategy for combating health misinformation and ameliorating information access gaps for language minority populations. This digital approach represents an important tool for deploying critical information to underserved populations in public health emergency and crisis contexts, and for supporting changes in attitudes, trust, and behaviors to improve health outcomes.

Memory, Emotion, and Quality of Life in Patients with Long COVID-19.

(1) Background: Persistent COVID is characterized by the presence of fatigue, mental fog, and sleep problems, among others. We aimed to study cognitive abilities (attention, executive functions, memory, language) and psychological and emotional factors in a group of participants of the population with persistent COVID-19 and asymptomatic or non-COVID-19-infected patients; (2) Methods: A total of 86 participants aged 18 to 66 years (X = 46.76) took part in the study, with 57 individuals (66.27%) in the experimental group and 29 (33.73%) in the control group. A comprehensive assessment included neuropsychological evaluations, evaluations of anxious and depressive symptomatology, assessments of the impact of fatigue, sleep quality, memory failures in daily life, and the perceived general health status of the participants; (3) Results: significant differences between groups were found in incidental learning within the Key Numbers task (U = 462.5; p = 0.001; p = 0.022) and in the Direct Digit Span (U = 562; p = 0.022), but not in the Inverse Digit Span (U = 632.5; p = 0.105). Differences were also observed in the prospective memory task of the Rivermead Prospective Memory Tasks (from the Rivermead Behavioural Memory Test) in the recall of quotations (U = 610; p = 0.020) as well as in the recall of objects (U = 681.5; p = 0.032). Concerning the task of verbal fluency, significant differences were found for both phonological cues (p- and s-) (t = -2.190; p = 0.031) and semantic cues (animals) (t = -2.277; p = 0.025). In terms of the psychological impact assessment, significant differences were found in the emotional impact across all variables studied (fatigue, quality of sleep, memory lapses, and the perceived general health status), except for quality of life; (4) Conclusions: Our results suggest that the sequelae derived from persistent COVID may have an impact on people's lives, with higher levels of anxiety and depression, worse sleep quality, a greater number of subjective memory complaints, and a greater feeling of fatigue and impact on quality of life. Furthermore, poorer performance was observed in memory and verbal fluency.

Assessing Brigada Digital de Salud Audience Reach and Engagement: A Digital Community Health Worker Model to Address COVID-19 Misinformation in Spanish on Social Media.

U.S. Spanish-speaking populations experienced gaps in timely COVID-19 information during the pandemic and disproportionate misinformation exposure. Brigada Digital de Salud was established to address these gaps with culturally tailored, Spanish-language COVID-19 information on social media. From 1 May 2021 to 30 April 2023, 495 Twitter, 275 Facebook, and 254 Instagram posts were published and amplified by 10 trained community health workers. A qualitative content analysis was performed to characterize the topics and formats of 251 posts. To assess reach and engagement, page analytics and advertising metrics for 287 posts were examined. Posts predominantly addressed vaccination (49.45%), infection risks (19.12%), and COVID-related scientific concepts (12.84%). Posts were educational (48.14%) and aimed to engage audiences (23.67%), promote resources (12.76%), and debunk misinformation (9.04%). Formats included images/text (55.40%), carousels (27.50%), and videos (17.10%). By 9 June 2023, 394 Facebook, 419 Instagram, and 228 Twitter followers included mainly women ages 24-54. Brigada Digital reached 386,910 people with 552,037 impressions and 96,868 engagements, including 11,292 likes, 15,240 comments/replies, 9718 shares/retweets, and 45,381 video play-throughs. The most engaging posts included videos with audio narration, healthcare providers, influencers, or music artists. This community-based model to engage Spanish-speaking audiences on social media with culturally aligned content to counter misinformation shows promise for addressing public health threats.

COVID-19 stressors for Hispanic/Latino patients living with type 2 diabetes: a qualitative study.

Background and aim: During the early stages of the COVID-19 pandemic, nationwide lockdowns caused disruption in the diets, physical activities, and lifestyles of patients with type 2 diabetes. Previous reports on the possible association between race/ethnicity, COVID-19, and mortality have shown that Hispanic/Latino patients with type 2 diabetes who are socioeconomically disadvantaged are disproportionately affected by this novel virus. The aim of this study was to explore stressors associated with changes in diabetes self-management behaviors. Our goal was to highlight the health disparities in these vulnerable racial/ethnic minority communities and underscore the need for effective interventions. Methods and participants: Participants were enrolled in part of a larger randomized controlled trial to compare diabetes telehealth management (DTM) with comprehensive outpatient management (COM) in terms of critical patient-centered outcomes among Hispanic/Latino patients with type 2 diabetes. We conducted a thematic analysis using patient notes collected from two research nurses between March 2020 and March 2021. Two authors read through the transcripts independently to identify overarching themes. Once the themes had been identified, both authors convened to compare themes and ensure that similar themes were identified within the transcripts. Any discrepancies were discussed by the larger study team until a consensus was reached. Results: Six themes emerged, each of which can be categorized as either a source or an outcome of stress. Sources of stress associated with the COVID-19 pandemic were (1) fear of contracting COVID-19, (2) disruptions from lockdowns, and (3) financial stressors (e.g., loss of income). Outcomes of COVID-19 stressors were (1) reduced diabetes management (e.g., reduced diabetes monitoring and physical activity), (2) suboptimal mental health outcomes (e.g., anxiety and depression), and (3) outcomes of financial stressors. Conclusion: The findings indicated that underserved Hispanic/Latino patients with type 2 diabetes encountered a number of stressors that led to the deterioration of diabetes self-management behaviors during the pandemic.

Association of rs662799 and rs5070 genetic polymorphisms with hypertriglyceridemia and atherogenic dyslipidemia in pediatric patients in Southeast Mexico / Asociación de los polimorfismos genéticos rs662799 y rs5070 con hipertrigliceridemia y dislipidemia aterogénica en pacientes pediátricos del sureste de México

Background and aims: Triglycerides are the initiators of the metabolic changes that lead to atherogenic dyslipidemia (AD). The APOA5 and APOA1 genes are involved in the response and metabolism of serum lipids and lipoproteins, where single nucleotide polymorphisms (SNP) rs662799 (promoter region) and rs5070 (intronic region) have been associated with the susceptibility to dyslipidemia. Until now, few studies evaluate the association of these polymorphisms with the presentation of hypertriglyceridemia and AD among Mexican children. Therefore, the objective was to determine the association between rs662799 and rs5070 with hypertriglyceridemia and AD in a pediatric population of southeastern Mexico. Materials and methods: A case–control analysis was performed including 268 infants aged 2–16 years, anthropometric, clinical variables, and serum lipid profiles were analyzed. DNA was extracted from blood samples and genotyping of polymorphisms was executed with the TaqMan SNP genotyping assay. Allele and genotypic frequencies were calculated. For genetic association analysis, logistic regression models were fitted according to models of inheritance. Results: The SNP rs662799 (C) was significantly associated with hypertriglyceridemia in the overdominant model (OR=3.89, p=0.001) and AD in the dominant model (OR=4.01, p=0.001). The SNP rs5070 (T) has a protective effect against hypertriglyceridemia in the additive risk model (OR=0.68, p=0.03). Conclusion: Polymorphism rs662799 was significantly associated with cases of hypertriglyceridemia and AD in minors in southeastern Mexico. On the other hand, rs5070 polymorphism was not associated with cases of hypertriglyceridemia or AD.(AU)

Antecedentes y objetivos: Los triglicéridos son los iniciadores de los cambios metabólicos que conducen a la dislipidemia aterogénica (DA). Los genes APOA5 y APOA1 están implicados en la respuesta y metabolismo de lípidos séricos y lipoproteínas, donde los polimorfismos de nucleótido único (SNP) rs662799 (región promotora) y rs5070 (región intrónica) se han asociado con la susceptibilidad a la dislipidemia. Hasta ahora, pocos estudios evalúan la relación de estos polimorfismos con la presentación de hipertrigliceridemia y DA entre los niños mexicanos. Por lo tanto, el objetivo fue determinar la asociación entre rs662799 y rs5070 con hipertrigliceridemia y DA en una población pediátrica del sureste de México. Materiales y métodos: Se realizó un análisis de casos y controles con 268 niños de 2 a 16 años, se analizaron variables antropométricas, clínicas y perfiles de lípidos séricos. Se extrajo ADN de muestras de sangre y se realizó genotipado de polimorfismos con el ensayo de genotipado TaqMan SNP. Se calcularon las frecuencias alélicas y genotípicas. Para el análisis de asociación genética, los modelos de regresión logística se ajustaron según los modelos de herencia. Resultados: El SNP rs662799 se asoció significativamente con hipertrigliceridemia en el modelo sobredosis (OR=3,89, p=0,001) y DA en el modelo dominante (OR=4,01, p=0,001). El SNP rs5070 tiene un efecto protector contra la hipertrigliceridemia en el modelo de riesgo aditivo (OR=0,68, p=0,03). Conclusión: El polimorfismo rs662799 se asoció significativamente con casos de hipertrigliceridemia y DA en menores del sureste de México. Por otro lado, el polimorfismo rs5070 no se asoció con casos de hipertrigliceridemia o DA en esta población.(AU)

Association of rs662799 and rs5070 genetic polymorphisms with hypertriglyceridemia and atherogenic dyslipidemia in pediatric patients in Southeast Mexico.

BACKGROUND AND AIMS: Triglycerides are the initiators of the metabolic changes that lead to atherogenic dyslipidemia (AD). The APOA5 and APOA1 genes are involved in the response and metabolism of serum lipids and lipoproteins, where single nucleotide polymorphisms (SNP) rs662799 (promoter region) and rs5070 (intronic region) have been associated with the susceptibility to dyslipidemia. Until now, few studies evaluate the association of these polymorphisms with the presentation of hypertriglyceridemia and AD among Mexican children. Therefore, the objective was to determine the association between rs662799 and rs5070 with hypertriglyceridemia and AD in a pediatric population of southeastern Mexico. MATERIALS AND METHODS: A case-control analysis was performed including 268 infants aged 2-16 years, anthropometric, clinical variables, and serum lipid profiles were analyzed. DNA was extracted from blood samples and genotyping of polymorphisms was executed with the TaqMan SNP genotyping assay. Allele and genotypic frequencies were calculated. For genetic association analysis, logistic regression models were fitted according to models of inheritance. RESULTS: The SNP rs662799 (C) was significantly associated with hypertriglyceridemia in the overdominant model (OR=3.89, p=0.001) and AD in the dominant model (OR=4.01, p=0.001). The SNP rs5070 (T) has a protective effect against hypertriglyceridemia in the additive risk model (OR=0.68, p=0.03). CONCLUSION: Polymorphism rs662799 was significantly associated with cases of hypertriglyceridemia and AD in minors in southeastern Mexico. On the other hand, rs5070 polymorphism was not associated with cases of hypertriglyceridemia or AD.

Atherogenic indices in pediatric population in South-Southeast region of Mexico.

BACKGROUND: Atherosclerosis is a cardiovascular disease, highly predictable, and associated with different atherogenic indices (AI) in adults. However, such indexes in the pediatric population are far less explored. The objective of this study was to evaluate the AI and the cardiovascular factors in the pediatric population in the South-Southeast of México. METHODS: A total of 481 children between 2 and 17 years old were recruited. Anthropometric evaluation, blood pressure (BP), lipid profile, apolipoprotein A-I (ApoA-I) and apolipoprotein B (ApoB) were measured, and AI were calculated. The population was grouped by age, binary logistic regression analysis was performed to analysis for associations of AI and cardiovascular risk factors. Sensibility and specificity of AI to detect metabolic alteration were evaluated for curve ROC. RESULTS: The atherogenic risk presented a high prevalence in the pediatric population, such as LDL-c/ApoB (86.9%), AIP (78%) and AC (36.6%). Preschoolers showed a higher risk of ApoB/ApoA-I and ApoB/LDL-c, while adolescents have a high risk of AIP. CRI-I and AC were associated with elements of lipid profile and body mass index (BMI). ROC curves analysis shows that AIP is the best index evaluating metabolic syndrome (MS) (0.87) and dyslipidemia (0.91). CONCLUSION: Such pediatric population showed a high risk of AI, mainly by LDL-c/ApoB and AIP. The BMI was the cardiovascular risk factors most frequently related to AI, AIP is the best index for detecting cases of MS and dyslipidemia. This is the first study carried out in the pediatric population from the South-Southeast of Mexico that evaluated the AI.

A Saccharomyces cerevisiae model and screen to define the functional consequences of oncogenic histone missense mutations.

Somatic missense mutations in histone genes turn these essential proteins into oncohistones, which can drive oncogenesis. Understanding how missense mutations alter histone function is challenging in mammals as mutations occur in a single histone gene. For example, described oncohistone mutations predominantly occur in the histone H3.3 gene, despite the human genome encoding 15 H3 genes. To understand how oncogenic histone missense mutations alter histone function, we leveraged the budding yeast model, which contains only 2 H3 genes, to explore the functional consequences of oncohistones H3K36M, H3G34W, H3G34L, H3G34R, and H3G34V. Analysis of cells that express each of these variants as the sole copy of H3 reveals that H3K36 mutants show different drug sensitivities compared to H3G34 mutants. This finding suggests that changes to proximal amino acids in the H3 N-terminal tail alter distinct biological pathways. We exploited the caffeine-sensitive growth of H3K36-mutant cells to perform a high copy suppressor screen. This screen identified genes linked to histone function and transcriptional regulation, including Esa1, a histone H4/H2A acetyltransferase; Tos4, a forkhead-associated domain-containing gene expression regulator; Pho92, an N6-methyladenosine RNA-binding protein; and Sgv1/Bur1, a cyclin-dependent kinase. We show that the Esa1 lysine acetyltransferase activity is critical for suppression of the caffeine-sensitive growth of H3K36R-mutant cells while the previously characterized binding interactions of Tos4 and Pho92 are not required for suppression. This screen identifies pathways that could be altered by oncohistone mutations and highlights the value of yeast genetics to identify pathways altered by such mutations.

Time reversal focusing in the audible range using a tunable sonic crystal.

Time reversal (TR) focusing of acoustical waves is a widely studied phenomenon that usually requires a chaotic cavity or disordered scattering medium to achieve spatial and frequency decorrelation of the acoustic field when using a single channel. On the other hand, sonic crystals were disregarded as scattering media for the TR process because of their periodic structure and previous results showing poor spatial focusing when compared to a disordered medium. In this paper, an experimental realization of a tunable sonic crystal, which can achieve single-channel TR focusing amplitudes in the audible range comparable to those obtained in a disordered scattering medium, is presented. Furthermore, the tunable nature of the system allows it to switch the time-reversed pulse on and off by changing its geometrical configuration. A robustness analysis with respect to the perturbations in the sonic crystal configurations is also presented, showing that the time-reversed pulses with high temporal and spatial contrasts are preserved only for configurations that are close to the original one.

Understanding ADHD: Toward an Innovative Therapeutic Intervention.

Attention deficit hyperactivity disorder (ADHD) is a pervasive condition affecting persons across all age groups, although it is primarily diagnosed in children. This neurological condition affects behavior, learning, and social adjustment and requires specific symptomatic criteria to be fulfilled for diagnosis. ADHD may be treated with a combination of psychological or psychiatric therapeutic interventions, but it often goes unattended. People with ADHD face societal bias challenges that impact how they manage the disorder and how they view themselves. This paper summarizes the present state of understanding of this disorder, with particular attention to early diagnosis and innovative therapeutic intervention. Contemporary understanding of the mind-brain duality allows for innovative therapeutic interventions based on neurological stimulation. This paper introduces the concept of neurostimulation as a therapeutic intervention for ADHD and poses the question of the relationship between patient adherence to self-administered therapy and the aesthetic design features of the neurostimulation device. By fabricating devices that go beyond safety and efficacy to embrace the aesthetic preferences of the patient, it is proposed that there will be improvements in patient adherence to a device intended to address ADHD.

Effect of soil disturbance by agricultural activities on the life history traits of monkey frog (Pithecopus azureus).

We assessed whether soil disturbance by agricultural activity influences the growth, development, and survival of individuals in the larval, metamorphic, and postmetamorphic stages of amphibians. Tadpoles of Pithecopus azureus (Cope, 1862) were reared in microcosms assembled with soil from two sites, a pristine site and a rice field. For 5 weeks, we recorded tadpole growth and development as well as physicochemical variable of the water: temperature, conductivity, dissolved oxygen, and pH. The results show that rice field soil produced a level of acidification in the water that influenced the growth and development rates of tadpoles. Tadpoles reared in rice soil had a significantly lower growth rate and body length, and during a specified period, the development rate of the tadpole was significantly lower than that of tadpoles in pristine soil. Overall, tadpoles in rice soil took 3 days longer to reach metamorphosis and 1 additional day to complete metamorphosis compared with tadpoles exposed to pristine soil. Our study shows that disturbed soils modify the physicochemical conditions of temporary ponds, impacting on the initial life stage of the anurans.

Morphological variation of Aplectana hylambatis (Nematoda: Cosmocercidae) from different anuran hosts and localities in Argentina.

Aplectana hylambatis is a nematode with a wide geographic distribution and low host specificity. In spite of numerous reports, until this moment, the morphological variations between different hosts and localities have not been studied. We studied 401 specimens collected from five host species from seven localities in Argentina, and examined the following morphological characters: mamelon-like cuticular protuberances anterior to the vulva, structure of the gubernaculum and the spicules, number and arrangement of caudal papillae, and the measurements of twelve characters in females and eleven characters in males. The results showed that mamelon-like protuberances and caudal papillae varied in number and arrangement between different hosts and localities. The metrical study revealed that five characters in males and six in females contributed to variability; nine characters showed significant differences between host species and localities. Specimens of A. hylambatis collected from R. arenarum formed a group clearly differentiated from the rest of the specimens. The results from this study highlight the importance of examining as many specimens as possible from different host samples and from several localities to cover the intraspecific variations.

The Role of Dispositional Flow's Dimensions in the Prediction of Intention to be Physically Active in Adolescents / El rol de las dimensiones del flow disposicional en la predicción de la intención de ser físicamente activo en adolescentes

Abstract Within the flow theory framework, the aims of this study were a) to analyze differences in flow dimensions and future physical activity (FPA) practice intentions according to the level of current PA and b) to analyze the predictive role of flow dimensions for FPA practice intentions. The sample was composed by 1076 physical education students and segmented according to the current PA levels. Subjects reporting high levels of PA scored higher in all of the flow dimensions. Stepwise regression analyses indicated that autotelic experience was associated with FPA practice intentions among all of the participants. Furthermore, in the low-activity group the balance between challenge and skills also emerged as a predictor, while in the high-activity group both the sense of control and the perception of clear objectives resulted significant in the explanation of FPA practice intentions. The findings suggest that the implementation of different strategies to enhance dispositional flow in physical education settings may have the potential to increase FPA intentions, especially those oriented to enhance autotelic experience.

Resumen Enmarcado en la teoría del flow, este estudio pretende a) comprobar las diferencias en las dimensiones del flow disposicional y en la intención futura de realizar actividad física (IF) según el nivel de AF y b) estudiar el papel predictivo de dichas dimensiones sobre la IF. La muestra estuvo compuesta por 1076 estudiantes de educación física y se segmentó según el nivel actual de AF. Los sujetos que mostraron mayores niveles de AF presentaron valores más elevados en todas las dimensiones. Los análisis de regresión por pasos indicaron que la experiencia autotélica se asoció con IF en todos los participantes. Además, en el grupo de baja actividad el equilibrio percibido entre el reto y la habilidad emergió como predictor mientras que en el grupo de alta actividad, tanto la sensación de control como la percepción de objetivos claros resultaron significativos en la explicación de la IF. Los resultados sugieren que la implementación en clases de EF de diferentes estrategias para mejorar la disposición a experimentar el flow, puede aumentar la IF.

Abuso sexual infantil y el investimento: desinvestimento libidinal del cuerpo sexuado genitalmente / Child abuse and the libidinization: delibidinization of the genitally sexed body

La presente investigación se propone evaluar cuáles son los efectos del abuso sexual infantil en la apropiación subjetiva de la sexualidad genital de adolescentes que han sido abusados sexualmente en la infancia. Para ello, nos proponemos: explorar la relación entre el abuso sexual infantil y el investimento/desinvestimento libidinal del cuerpo sexuado genitalmente. En el marco de un diseño exploratorio, se ha trabajado con una muestra finalística conformada por siete adolescentes que han sido abusados sexualmente en la infancia y que realizan o han realizado tratamiento psicoterapéutico. La fuente de datos han sido los materiales clínicos elaborados por los psicoanalistas a cargo del tratamiento de cada adolescente. El procedimiento de análisis ha sido cualitativo, de tipo hermenéutico. En el análisis de estos materiales clínicos nos abocamos a analizar los trabajos psíquicos que realizaron los adolescentes para investir libidinalmente el cuerpo sexuado genitalmente, y las dificultades para que se desplegara dicho proceso.

This research has the goal of assessing the effects of child abuse in the subjective appropriation of genital sexuality in adolescents who have been sexually abused in their childhood. To accomplish this, we will: explore the link between child abuse and the libidinization/delibidinization of the genitally sexed body.Using an exploratory framework, we have worked with a sample of seven adolescents who have been sexually abused in their childhood and have undergone psychotherapeutic treatment. The source for our data were the clinical records kept by the psychoanalysts who lead each adolescent’s treatment.In the assessment of these clinical records we focused in the analysis of the psychic works done by the adolescents in order to libidinize the genitally sexed body, and the difficulties in deploying such process.

Abuso sexual infantil y el investimento: desinvestimento libidinal del cuerpo sexuado genitalmente / Child abuse and the libidinization: delibidinization of the genitally sexed body

La presente investigación se propone evaluar cuáles son los efectos del abuso sexual infantil en la apropiación subjetiva de la sexualidad genital de adolescentes que han sido abusados sexualmente en la infancia. Para ello, nos proponemos: explorar la relación entre el abuso sexual infantil y el investimento/desinvestimento libidinal del cuerpo sexuado genitalmente. En el marco de un diseño exploratorio, se ha trabajado con una muestra finalística conformada por siete adolescentes que han sido abusados sexualmente en la infancia y que realizan o han realizado tratamiento psicoterapéutico. La fuente de datos han sido los materiales clínicos elaborados por los psicoanalistas a cargo del tratamiento de cada adolescente. El procedimiento de análisis ha sido cualitativo, de tipo hermenéutico. En el análisis de estos materiales clínicos nos abocamos a analizar los trabajos psíquicos que realizaron los adolescentes para investir libidinalmente el cuerpo sexuado genitalmente, y las dificultades para que se desplegara dicho proceso.(AU)

This research has the goal of assessing the effects of child abuse in the subjective appropriation of genital sexuality in adolescents who have been sexually abused in their childhood. To accomplish this, we will: explore the link between child abuse and the libidinization/delibidinization of the genitally sexed body.Using an exploratory framework, we have worked with a sample of seven adolescents who have been sexually abused in their childhood and have undergone psychotherapeutic treatment. The source for our data were the clinical records kept by the psychoanalysts who lead each adolescentÆs treatment.In the assessment of these clinical records we focused in the analysis of the psychic works done by the adolescents in order to libidinize the genitally sexed body, and the difficulties in deploying such process. (AU)

Los modos de relatar/contar/narrar el abuso sexual sufrido en la infancia por adolescentes en tratamiento psicoanalítico / The ways of telling/relate/narrate the sexual abuse suffered in childhood by teenagers in psychoanalytic treatment

Este artículo se propone presentar algunas consideraciones clínicas acerca de los modos de relatar, contar, narrar el abuso sexual en el contexto de los tratamientos psicoanalíticos y la posición del analista ante ello. En el marco de un diseño exploratorio, se ha trabajado con una muestra finalística conformada por diez adolescentes que han sido abusados sexualmente en la infancia y que realizan o han realizado tratamiento psicoterapéutico. La fuente de datos han sido los materiales clínicos elaborados por los psicoanalistas a cargo del tratamiento de cada adolescente. El procedimiento de análisis ha sido cualitativo, de tipo hermenéutico. Se presenta el análisis de varios fragmentos clínicos a modo de ilustración del trabajo empírico y de interpretación teórica realizado. Como resultados se han categorizado diversas modalidades narrativas y distinguido algunas relaciones con las intervenciones del psicoanalista.

This paper proposes to presents some clinical considerations about the ways of telling, relate, narrate the sexual abuse in psychoanalytic context and the analyst's position to it. As part of an exploratory design, we worked with a finalistic sample composed by ten adolescents who has been sexually abused in childhood and realize or have realized psychoanalytic treatment. The data source has been the clinical materials elaborated by the psychoanalyst in charge of treating of each adolescent. The analysis method has been qualitative, of hermeneutic type. We present the analysis of several clinical fragments as an illustration of the empirical work and theoretical interpretation made. As results we have categorized various narrative modalities and distinguished some relations with the analyst's interventions.

Los modos de relatar/contar/narrar el abuso sexual sufrido en la infancia por adolescentes en tratamiento psicoanalítico / The ways of telling/relate/narrate the sexual abuse suffered in childhood by teenagers in psychoanalytic treatment

Este artículo se propone presentar algunas consideraciones clínicas acerca de los modos de relatar, contar, narrar el abuso sexual en el contexto de los tratamientos psicoanalíticos y la posición del analista ante ello. En el marco de un diseño exploratorio, se ha trabajado con una muestra finalística conformada por diez adolescentes que han sido abusados sexualmente en la infancia y que realizan o han realizado tratamiento psicoterapéutico. La fuente de datos han sido los materiales clínicos elaborados por los psicoanalistas a cargo del tratamiento de cada adolescente. El procedimiento de análisis ha sido cualitativo, de tipo hermenéutico. Se presenta el análisis de varios fragmentos clínicos a modo de ilustración del trabajo empírico y de interpretación teórica realizado. Como resultados se han categorizado diversas modalidades narrativas y distinguido algunas relaciones con las intervenciones del psicoanalista.(AU)

This paper proposes to presents some clinical considerations about the ways of telling, relate, narrate the sexual abuse in psychoanalytic context and the analysts position to it. As part of an exploratory design, we worked with a finalistic sample composed by ten adolescents who has been sexually abused in childhood and realize or have realized psychoanalytic treatment. The data source has been the clinical materials elaborated by the psychoanalyst in charge of treating of each adolescent. The analysis method has been qualitative, of hermeneutic type. We present the analysis of several clinical fragments as an illustration of the empirical work and theoretical interpretation made. As results we have categorized various narrative modalities and distinguished some relations with the analysts interventions.(AU)