Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

The effect of class observations on the personal, professional, and pedagogical development of teachers is a descriptive-qualitative study targeting 24 participants drawn from master teachers and teachers I-III in 12 public elementary schools. Both lowland and upland institutions were considered to include participants, and purposive sampling was applied. Data analysis was conducted using thematic analysis while utilizing an interview guide. It obtained the required permissions from the Department of Education (DepEd), where necessary approvals were obtained from key officials, and data gathering using FGDs captured in-depth insights. These findings include teachers' personal development: evolution of beliefs, ability to embrace different viewpoints, opportunity to shed unproductive habits, cultivation of productive habits, and development of resilience. Teachers' professional development: enabling teachers to develop research-based content, preparing teachers to create supportive learning environments, using diverse data to determine developmental priorities, application of multiple evaluation approaches to inform improvement impact, and enhancement of teachers' practice by learning from research and practices. Teachers' pedagogical development: ensuring students grasp whole-picture understanding, high standards in advanced complex student understanding, and clear feedback on student performance standards. It concludes class observations play an essential part in teacher development and recommends using structured frameworks in observations, collaborative feedback, and ongoing professional development to improve reflective practices and high teaching standards and that long-term and context-specific impacts of observations on teacher and student outcomes are also a suggested area of study.

This research examines the impact of mycorrhizae on the eco-physiological and nutritional aspects of Cynophalla flexuosa (L.) and Cratylia argentea in saline soil environments. Beginning with the challenges in semiarid regions, particularly drought and soil salinization, it aims to understand mycorrhizae’s role in plant adaptation and performance. Through a comprehensive literature review, the study explores plant-fungus interactions, emphasizing mycorrhizae’s benefits in nutrient absorption and eco-physiological resilience. The findings suggest that mycorrhizae enhance plant adaptation to saline stress, aiding nutrient uptake and supporting plant survival in harsh conditions. This adaptation is crucial for food security and sustainable development in semiarid areas. The research highlights the importance of mycorrhizae in supporting biodiversity and agricultural productivity under saline stress, calling for further research and practical applications to maximize their potential in agriculture and natural resource management. The study can improve plant adaptation to environmental stress, optimize resource use, and promote sustainable agricultural practices.

Rhizophagy is a biological process in which microorganisms are temporarily internalized by plant roots, facilitating the absorption of essential nutrients. This study aims to explore the mechanisms of rhizophagy and its potential to promote more sustainable agriculture. The methodology was based on a systematic review of scientific literature, examining articles addressing plant-microorganism interactions and their impacts on plant nutrition. The results show that rhizophagy significantly enhances the uptake of nutrients such as nitrogen, phosphorus, and other essential minerals, while reducing dependence on chemical fertilizers. This interaction promotes more efficient use of natural resources and contributes to sustainable agricultural practices. Moreover, integrating rhizophagy into agricultural systems can increase plants’ resilience to environmental stresses such as drought and salinity while improving soil fertility and supporting microbial biodiversity. These benefits are relevant for addressing challenges related to food security and environmental conservation. In summary, rhizophagy offers a promising pathway toward more ecological and efficient agricultural practices, aligning with global sustainable development goals. Future studies are recommended to explore practical applications of this phenomenon in different cropping systems, aiming at innovation and sustainability in agricultural production.  

Leucaena is a Fabaceae with environmental and economic importance. It can be used in the regeneration of degraded areas, animal feed, wood and crafts. Its seeds have tegumentary dormancy, which makes it difficult to propagate this species. Studies on overcoming seed dormancy are important to know which efficient way(s) to break dormancy. Therefore, this study aimed to evaluate the best treatment for overcoming dormancy in Leucaena leucocephala Lam. De Wit seeds from the State of Alagoas. The experimental design used was completely randomized, with four replicates of 25 seeds per treatment. Six treatments were tested, namely: (1) Control (intact seeds); Chemical scarification, performed by immersing the seeds in H2SO4 (concentrated sulfuric acid) for (2) 5 and (3) 10 minutes, followed by washing in running water; (4) Topping and (5) Sandpaper, performed on the side opposite to the micropyle; and (6) Soda immersion for 24 hours. It was concluded that the topping treatment was superior to the others, differing statistically, except for the dry mass variable in the sandpaper treatment. Thus, the topping treatment proved to be efficient and can be recommended for breaking dormancy in L. leucocephala seeds

The objective of this article is to produce an articulation between the themes of bisexuality(ies), from the queer perspective, to geographic experiences in urban spaces, based on the contributions of Angelo Serpa (2023). The research is qualitative and phenomenological, understood as bibliographic and has an exploratory purpose. There is a process of invisibilization and delegitimization in the experiences of bisexual people, both inside and outside the LGBTQIAPN+ community. There is also an obliteration within the scientific community, conferring the theoretical relevance of the study. Bisexuality(ies) describe experiences of non-monosexuality, composing singular and autonomous experiences, being biphobia the violence faced. Exclusion, as a psychosocial phenomenon, is analyzed through Sawaia's (2001) concept of ethical-political suffering. The city is made up of different spaces and places articulating debates about power, affections, symbolisms, segregations and representations, therefore, causing specific effects on non-heterosexual bodies. The heterosexual norm affects relationships, modifying the constructions of subjectivities, influencing perceptions about oneself and one's desires. The geographic experiences of bisexual people in urban spaces need to be analyzed in an intersectional way, due to the overlapping vectors of oppression that intersect and complicate the debate.

The study revisits the extent to which accreditation procedures are implemented, examines the problems encountered during the accreditation process, and identifies the best practices that contribute to effective program accreditation. In addition, it explores how these elements influence the development of the quality assurance management culture within a higher education institution. Key components, including strategic leadership, management support, the attitudes and commitment of task force members, efficient records/file storage management, and effective communication, are all vital in shaping the shared culture model of the quality assurance management system. This model emphasizes a collegial, collaborative, and inclusive approach to management, where stakeholders work together toward a unified goal. It fosters a positive, forward-moving vision of learning that aligns with the institution's growth and development objectives. Such a culture encourages continuous improvement, collective responsibility, and engagement in accreditation processes, ultimately contributing to the long-term success of the institution’s educational programs. The study aims to provide insights on how these factors interact to build a robust, sustainable quality assurance management framework that supports the overall mission and vision of the institution.

This study analyzes the nature of violence against Black women through the work "Nietsche – a History of Polygamy" (2004) by Mozambican writer Paulina Chiziane, represented here by the characters Rami, Julieta, Luísa, Saly, and Mauá Sualé. For this research, we seek theoretical support from questions about subalternity addressed by Spivak (2010), the coloniality of power by Quijano (2010), identity by Hall (2006), and other theorists who discuss the forms of violence and oppression suffered by the colonized, especially Black women. Based on theoretical and interpretative practice, we perceive through the analysis of this work that female subjugation was maintained for a long period, in which the characters themselves, victims of various forms of violence, both symbolic and physical, seek, through the subjectivation of memory and identity, a response to this situation, leading us to reflect on the role of the culture of gender violence.  

Salivary Gland Cancer (SGC) accounts for 2 to 6.5% of all head and neck neoplasms. Predisposing factors for its development include exposure to chemicals, radiation, genetic factors, viral etiology, smoking, and alcohol consumption. The complexity and biological and morphological diversity of SGC contribute to challenges in diagnosis, classification, and treatment. This study aims to evaluate the temporal trends and associated factors of SGC in the Northeast region of Brazil from 2014 to 2023, considering age groups and gender. This is a quantitative, exploratory, and analytical ecological time-series study conducted with data collected from 2014 to 2023 on SGC in the Northeast of Brazil. Data were extracted from the oncology panel of TabNet, from the Department of Informatics of the Unified Health System (DATASUS). The selected variables were sex and age group. The Joinpoint regression model was adopted to calculate temporal trends. Poisson Regression was used to verify the factors associated with gender and age groups, evaluating the influence of these variables on SGC. Data analysis revealed a significant increase in the prevalence of SGC between 2014 and 2019 (APC=31.14; p=0.02), followed by stabilization from 2020 (p=0.88). No significant influence of gender was identified in the progression of SGC (p=0.90). The age group analysis revealed a significant increase (p < 0.001) in SGC diagnosis in individuals aged 20 to 39 years (PR=2.954; 95% CI=1.90 - 4.77), 40 to 59 years (PR=5.470; 95% CI=3.646 - 8.62), and 60 years or older (PR=6.410; 95% CI=4.296 - 10.06), compared to the reference age group (0 to 19 years). There was a significant increase in the incidence of SGC from 2014 to 2019, followed by a stationary period from 2020 to 2023. Age group significantly impacted SGC prevalence, with the highest incidence in individuals aged 60 years or older. Gender did not significantly influence the results obtained.

This study investigated the occurrence and population dynamics of Ips calligraphus within remnant Pinus forest stands with varying floristic compositions on the northwestern slope of the Cordillera Central, Dominican Republic. The study aimed to assess the influence of floristic diversity and forest management on the abundance of I. calligraphus in these fragmented ecosystems. Sampling was conducted across multiple forest stands with varying management and floristic compositions. A total of 18 plots of 20 x 20 meters were established, and I. calligraphus abundance was monitored using pheromone-baited traps over a five-week period. Tree dimensions, species richness, and floristic diversity were measured in each plot. Data analysis included descriptive statistics, diversity indices, and multivariate techniques such as Principal Component Analysis (PCA) and hierarchical clustering. The results indicated that I. calligraphus populations were more abundant in forest stands with higher floristic diversity, particularly in unmanaged sites. Significant variability in beetle populations was observed between managed and unmanaged forests, with unmanaged sites showing greater beetle pressure. PCA and clustering analyses revealed distinct capture profiles, suggesting that site-specific factors such as microclimate, forest management, and tree species composition influenced I. calligraphus dynamics. The study highlighted the complexity of managing I. calligraphus populations in fragmented pine forests. Floristic diversity, while beneficial for overall ecosystem health, did not appear to mitigate beetle infestations. The findings suggested the need for adaptive, site-specific pest management strategies that considered both ecological and management variables.

The analysis of factors influencing water quality in the Yaque del Norte and Yaque del Sur rivers between 1990 and 2022 revealed significant findings. Through Multiple Regression models and the calculation of the Water Quality Index (WQI), important differences were identified between the two basins. The WQI showed a general average of 52, classifying the water quality as moderate, although with variability between the rivers. In the Yaque del Sur, higher concentrations of phosphates (PO₄) and nitrates (NO₃) were observed, related to intensive agriculture and the excessive use of fertilizers. These variables had a significant negative impact on the WQI, along with other contaminants such as nitrites (NO₂), ammonium (NH₄), and total dissolved solids (TDS). This reflects more uniform contamination, primarily associated with intensive agricultural and industrial activities. In contrast, in the Yaque del Norte, water quality was more influenced by variables such as fecal coliforms and TDS, linked to insufficient sanitation infrastructure. However, parameters such as pH and the diversity of water sources showed a positive effect on the WQI, suggesting that some local conditions favor poor water quality. The correlation analysis and econometric multiple regression models confirmed that anthropogenic factors such as urbanization and intensive agriculture, along with extreme climatic events, are the main drivers of water degradation in both basins. The lack of effective implementation of environmental policies also significantly contributed to this deterioration. Recommendations include implementing specific policies for each basin: in the Yaque del Sur, improving agricultural practices and controlling industrial discharges; in the Yaque del Norte, strengthening wastewater treatment infrastructure and waste management. Each result underscores the urgent need for differentiated and sustainable strategies to protect and restore water quality in these essential rivers for the Dominican Republic.