bluuebunny/crossref_metadata_2025 huggingface dataset:
Yield, composition and toxicity of piperaceae volatiles to pest insects
Authors: Mendonça Jamila F. , Sousa Adalberto H. De , Faroni Lêda R. A. , Fernandes Carromberth C. , Santos Ana C. V. dos , Lopes Lucas M. , Ferraz Maria S. S. , Prates Lucas H. F.
Published: September 2024

ABSTRACT The objective of this study was to investigate the influence of leaf drying techniques (bench and oven at 35 and 45 °C) on the essential oil (EO) yield of Piper aduncum L., Piper anonifolium Kunth, Piper crassinervium Kunth and Piper hispidinervum C. DC., and to analyze the chemical profile of EOs and the insecticidal potential of these oils against Ascia monuste orseis (Godart), Atta sexdens L., Zabrotes subfasciatus (Boheman), Cryptolestes ferrugineus (Stephens) and Sitophilus zeamais Motschulsky. EO yield was evaluated using four replicates of 100g of dry leaves. The EOs were obtained by hydrodistillation and subjected to GC-MS analysis to assess the chemical composition. Concentrations of 2.60 and 157.25 nL/cm2 were used in the oil toxicity bioassays. EO yield was higher in the species P. aduncum and P. hispidinervum using leaves dried in oven at 45 °C, with average yields of 4.72±0.04% and 2.61±0.26%, respectively. The major constituents present in the EOs of P. hispidinervum and P. aduncum were Safrole (98.80%) and Apiole (90.00%). For P. anonifolium, the major constituents were α-Muurolene (23.11%), y-Muurolene (16.60%) and Cadina-1(10), while for P. crassinervium, they were Viridiflorol (27.70%) and Sabinene (15.50%). It was found that the EOs of P. aduncum, P. anonifolium, P. crassinervium and P. hispidinervum had a toxic effect on insects, except for P. anonifolium and P. crassinervium for S. zeamais. EO yield was higher in the species P. aduncum and P. hispidinervum, and these oils caused a higher mortality rate for the investigated insects.
Production of Mimosa caesalpiniifolia benth seedlings using a water-absorbing polymer and different water regimes
Authors: Antas Renato N. , Mendonça Luciana F. de M. , Silva Jodiene do N. , Guimarães Alisson G. C. , Araújo Larissa de M. , Freire Antonio L. de O. , Medeiros José C. G. de , Lucena João V. P. de
Published: September 2024

ABSTRACT Mimosa caesalpiniifolia Benth is an arboreous species native to the Caatinga commonly utilized for restoration of degraded areas. One factor that can affect its development is water shortage. This denotes the importance of searching for alternatives for improving these plant's tolerance to water shortage, such as the use of water-absorbing polymers known as hydrogels. In this context, the objective of this study was to evaluate the production of M. caesalpiniifolia seedlings under different hydrogel rates and water regimes. The experiment was conducted at the Forest Nursery of the Federal University of Campina Grande, Patos, PB, Brazil. Seeds were sown in 2-liter pots made from halved polyethylene terephthalate bottles, containing a substrate consisted of soil and cattle manure (2:1 v v-1). A completely randomized design with four replications was used, in a 4×2 factorial arrangement consisted of four hydrogel rates in the substrate (0, 1, 2, and 3 g L-1) and two water regimes (daily irrigation and irrigation every 2 days). The following parameters were evaluated at the end of the experiment (75 days after sowing): number of leaves per plant, stem base diameter, plant height, root length, shoot and root dry weights, water relative content, chlorophyll content, gas exchanges, and Dickson quality index. Most of parameters presented no statistically significant difference; however, the hydrogel rate of 2 g L-1 resulted in increased production of M. caesalpiniifolia seedlings, whereas the absence of hydrogel resulted in longer roots, regardless of the water regime.
Growth and nutrient accumulation in elephant grass crop
Authors: Morais Éric G. , Oliveira Fábio H. T. de , Silva Gualter G. C. da , Bezerra Márcio G. da S. , Sá Francisco V. da S. , Grangeiro Leilson C. , Danino Giovana S. , Costa Romualdo M. C.
Published: September 2024

ABSTRACT Elephant grass fertilization is performed more efficiently by analyzing growth curves and nutrient accumulation. This study evaluated elephant grass's growth, dry matter production, and nutrient accumulation. A sampling design was used, with plant collections over time. Elephant grass was cultivated in four plots of 27 m2 during two cultivation cycles. Destructive sampling of four plants was carried out per collection to evaluate dry matter production and nutrient accumulations. In the first cycle, plants were collected at 21, 35, 49, 63, 77, 91, 105 and 119 days after planting. After the last collection of the first cycle, a standardization cut was made, eliminating the remaining plants in the experimental plots. The second cycle of collections was carried out at 21, 35, 49, 63, 77, 91, and 105 days after the uniformity cut. In all collections, the number of tillers per linear meter was counted, and the height of the plants was evaluated. The data were subjected to nonlinear regression analysis. The accumulation of nutrients by elephant grass accompanied the production of dry matter. The highest rates of dry matter production occurred around 70 days. The greatest height growth occurred from 18 to 102 days in the 1st cycle and 8 to 61 days in the 2nd cycle. Nutrient accumulation showed the following decreasing order: K>N>Mg>Ca>P>S>Fe>Mn>Zn>Cu (1st cycle); and K>N>Mg>Ca>P>S>Fe>Zn>Mn>Cu (2nd cycle).
Gas exchange and growth of colored cotton under salt stress and application of salicylic acid
Authors: Silva Smyth T. de A. , Soares Lauriane A. dos A. , Lima Geovani S. de , Silva Saulo S. da , Fátima Reynaldo T. de , Gheyi Hans R. , Silva André A. R. da , Nóbrega Jackson S.
Published: September 2024

ABSTRACT The occurrence of water sources with high salt content stands out as a limiting factor for the expansion of irrigated agriculture in the semi-arid region. In this context, it is essential to look for strategies to mitigate the effects of salt stress, and the application of salicylic acid stands out. The objective of this study was to evaluate gas exchange and growth of the naturally colored cotton cv. BRS Jade under saline water irrigation and foliar application of salicylic acid under semi-arid conditions. The experiment was carried out in containers adapted as drainage lysimeters, under open air conditions at the Center of Science and Agri-Food Technology of the Federal University of Campina Grande in Pombal, Paraíba, Brazil. A randomized block design was adopted, in a 5 × 5 factorial scheme, with treatments resulting from the combination of five levels of electrical conductivity of irrigation water - ECw (0.3, 1.8, 3.3, 4.8, and 6.3 dS m-1) associated with five concentrations of salicylic acid - SA (0, 1.5, 3.0, 4.5, and 6.0 mM), with three replicates. Water salinity from 0.3 dS m-1 limited the photosynthetic efficiency and therefore the growth of cotton cv. BRS Jade. Foliar application of SA at concentration of 6.0 mM mitigated the effects of salt stress on the stomatal conductance and leaf transpiration of these plants. However, SA concentrations ranging from 0 to 6.0 mM reduce the internal CO2 concentration, growth in stem diameter and plant height, and root and stem dry mass accumulation of cotton plants cv. BRS Jade.
Cultivation of yellow melon subjected to different irrigation levels and application of arbolina® biostimulant
Authors: Vieira Nicolly Q. B. , Simões Welson L. , Silva José A. B. da , Salviano Alessandra M. , Silva Jucicléia S. da , Braga Marcos B. , Guimarães Miguel J. M. , Martins Marcelo da S.
Published: September 2024

ABSTRACT The objective was to evaluate the physiological and biochemical characteristics during flowering, and the total and marketable fruit yield of yellow melon subjected to different irrigation depths and application of the biostimulant Arbolina®. The experimental design was randomized blocks, in a 2×2×5 factorial arrangement of split-split plots, with four replicates. Plots consisted of 2 forms of biostimulant application (fertigation and spraying), subplots consisted of 2 irrigation depths (40% and 100% of crop evapotranspiration - ETc) and sub-subplots consisted of 5 doses of the biostimulant Arbolina® (0; 0.1; 0.2; 0.4; and 0.8 L ha-1). Melon seedlings were transplanted into the soil at a spacing of 2.0 × 0.3 m, with drip irrigation. Basal and topdressing fertilization was performed via fertigation. The variables evaluated were: for total yield and marketable yield, photosynthetic rate, stomatal conductance, internal CO2 concentration, transpiration and leaf temperature, chlorophyll a and b contents, water use efficiency and relative water content. The biostimulant application by spraying had a better effect on the production process of yellow melon plants, promoting better metabolic efficiency in organ-forming cells, including the process of morphological formation and biochemical constitution of the fruits. It is recommended to use of the biostimulant doses of 0.446 and 0.443 L ha-1 combined with the use of 100% of ETc to achieve the highest total and marketable productivity.
Evaluation of fungicides and Trichoderma spp. for controlling soil-borne fungal pathogens in melon crops
Authors: Almeida Breno de H. , Negreiros Andréia M. P. , Melo Naama J. de A. , Ambrósio Márcia M. de Q. , Armengol Josep , Silva Washington da , Sales Júnior Rui
Published: September 2024

ABSTRACT Soil-borne fungal pathogens pose an increasing challenge to melon cultivation globally. The demand for reduced agrochemical use in melon farming, driven by limitations on chemical residues in the fruit, underscores the need for alternative control strategies. This study assesses the effectiveness of various fungicides-difenoconazole, fluazinam, fludioxonil, and procymidone -and Trichoderma spp. strains (T. asperellum, T. harzianum, and two strains of T. longibrachiatum) in combatting Ceratobasidium sp., Fusarium falciforme, Macrophomina phaseolina, and Monosporascus cannonballus. Fluazinam (EC50 from 0.01 to 0.88 mg/L) and fludioxonil (EC50 from 0.01 to 0.07 mg/L) emerged as the most effective fungicides in suppressing the mycelial growth of the pathogens in vitro, whereas procymidone (EC50 from 2.31 to 9.77 mg/L) was the least effective. Fludioxonil demonstrated significant efficacy against Ceratobasidium sp., F. falciforme, M. phaseolina, and M. cannonballus. In vitro assays revealed that all tested Trichoderma spp. strains significantly inhibited mycelial growth, with over 70% reduction for all pathogens examined. Field trials indicated that Trichoderma treatments could decrease disease incidence (28.00 to 69.33%) and severity (0.95 to 2.25) in melon crops. These findings illuminate the potential of various fungicides and Trichoderma spp. in managing soil-borne pathogens in melon cultivation. Such control methods might be employed independently or synergistically with other strategies like grafting onto resistant rootstocks or breeding for resistance to mitigate the threats these pathogens pose to global melon production.
Agronomic performance of sorghum crop under salt stress in soil with plant mulch
Authors: Oliveira Girna dos S. , Sousa Geocleber G. de , Viana Thales V. de A. , Pereira Maria J. L. , Leite Kelly N. , Sousa Leonardo V. de , Mendonça Andreza de M. , Santos Samuel de O.
Published: September 2024

ABSTRACT Excess salts in irrigation water affect the production potential of agricultural crops; however, the use of plant mulch can mitigate salt stress. In this context, the objective was to evaluate the yield of sorghum crop under salt stress and different strategies for using plant mulch. The experiment was conducted under field conditions from July to October 2021, in the municipality of Redenção, Ceará, in the Baturité Massif region, Brazil. The experimental design used was randomized blocks, in a 5 x 2 factorial scheme, referring to the mulching strategies (MS1: with mulch throughout the cycle; MS2: without mulch throughout the cycle; MS3: with mulch during stage 1 = germination until panicle initiation; MS4: with mulch during stage 2 = panicle initiation until flowering; MS5: with mulch during stage 3 = flowering until physiological maturity) and two levels of electrical conductivity of water - ECw (0.8 dS m-1 and 6.0 dS m-1), with 4 repetitions. Using plant mulch throughout the cycle and the control treatment are more efficient for panicle weight. Using plant mulch throughout the cycle under irrigation mitigates salt stress and promotes greater yield in sorghum. From the beginning of panicle appearance until flowering, irrigation with water of lower salinity led to higher yield.
Estudio normativo de las transformaciones del continuo urbano patrimonial derivadas del modelo inmobiliario en altura en el barrio La Pola de Ibagué, Colombia
Authors: Varón Liseth Andrea Bermúdez , Rodríguez Angel Stive Castañeda
Published: September 2024

Resumen El barrio La Pola de Ibagué, es un referente histórico y patrimonial por su componente arquitectónico y urbanístico. Sin embargo, durante las últimas tres décadas estos vestigios urbanos de la primera población de la ciudad están siendo objeto de modificaciones. Es así, que se plantea como propósito central el análisis de los vacíos normativos que permitieron el desarrollo del modelo inmobiliario de promoción privada en altura en el barrio La Pola de la ciudad de Ibagué, desde el año 1980 al 2022. Se usó una metodología de enfoque cualitativo de tipo explicativo bajo el método analítico y sintético, partiendo con la recolección de información, revisión documental e indagación de normas, publicaciones y licencias de construcción, además de la aplicación de entrevistas a expertos y residentes. Toda la información documental se sistematizó bajo su evolución cronológica, y las entrevistas con la técnica de redes semánticas. Como principales hallazgos se destaca que, en La Pola, se han ejecutado diversas edificaciones bajo el modelo inmobiliario de promoción privada que han puesto en riesgo el continuo urbano patrimonial del sector; lo anterior debido a la falta de reglamentación, a una legislación ambigua, vacía e inconsistente, con contradicciones normativas e interpretaciones acomodadas a beneficios particulares.
Mosaico da desigualdade social intraurbana de Macapá, Amapá (2000-2010)
Authors: Bastos Ananda Brito , Ferreira José Francisco de Carvalho , Freitas Josimar da Silva
Published: September 2024

Resumo Este estudo avalia a dinâmica espacial de exclusão e inclusão social no território urbano de Macapá, Amapá, entre os anos de 2000 e 2010. Chama a atenção para o debate sobre os processos de exclusão social em diferentes escalas, sobretudo no contexto das cidades médias na Amazônia. Trata-se de uma pesquisa de associação com interferência entre variáveis, baseada em dados estatísticos e vetoriais. A partir do uso de métodos quantitativos e comparativos, a pesquisa agrega metodologias existentes do Índice de Exclusão/Inclusão Social e do sistema de Grade Estatística. Os resultados atestaram alterações significativas nos padrões espaciais da exclusão/inclusão social com o início do processo de descentralização dos indicadores de inclusão a partir de 2010. Conclui-se que houve diminuição da população macapaense que habitava territórios de exclusão social, apesar de baixos avanços de inclusão social ao longo das décadas em questão.
Fluctuating arch symmetry: a comparison of two methods of assessment - applicability and efficiency
Authors: PUCCIARELLI Maria Giulia Rezende , AMBROSIO Eloá Cristina Passucci , OLIVEIRA Thaís Marchini , SFORZA Chiarella , MENEZES Márcio de , SOARES Simone
Published: September 2024

ABSTRACT Introduction: Symmetry is balance, some correspondence in the size, form, and arrangements of parts on opposite sides of a plane, line, or point. The opposite of this concept is asymmetry, or imbalance. Objective: This retrospective study compared two methods for assessing arch symmetry with linear measurements based on triangles, to determine their applicability and efficiency. Methods: Two groups were enrolled: children (n=20) and adults (n=20), and the arch symmetry was assessed from linear measurements. Method 1: the incisor-canine (INC), canine-molar (CM), and incisor-molar (INM) distances (paired t-test and Pearson correlation). Method 2: a mathematical equation between the cusps measurements of the canines and the distobuccal of the first molars leading to result 1 (t-test for one sample and bootstrapping analysis). Dental casts were digitized and analyzed using a software program. The Bland-Altman test compared the methods (α=0.05). Results: The Bland-Altman test revealed concordance between the methods; however, separately the results were different: In method 1, the mandibular arch did not demonstrate correlation (children, INC r=0.33; CM r=0.45; INM r=0.51; adults, CM r=0.46; INM r=0.35), however, the maxilla revealed a strong correlation in children and a strong/moderate correlation in adults. In method 2, both arches were symmetrical (p>0.05). Conclusion: Method 1 may be appropriate during orthodontic treatment, and method 2 may be indicated for final treatment. These methods are useful; however, only method 1 identified the side of asymmetry. The methods can contribute to future studies in syndromic and non-syndromic patients, before and after orthognathic surgeries and orthodontic treatment, comparing results.
Root volume measurements of maxillary canines and lateral incisors in patients with unilateral maxillary canine impaction
Authors: SHAHABI Mostafa , ZARCH Hossein Hosseini , SHADMAN Zahra , AHRARI Farzaneh
Published: September 2024

ABSTRACT Objective: This study aimed to assess root volumes of maxillary canines and adjacent lateral incisors in patients with unilateral maxillary canine impaction. Methods: This cross-sectional study was performed on cone-beam computed tomography (CBCT) scans of 100 patients (49 females and 51 males) with unilateral maxillary canine impaction. The images were loaded in Planmeca Romexis Viewer, and root layers between the cementoenamel junction and apex were reconstructed at 600-µm intervals. At each layer, the root boundary was marked, and finally, the root volume was calculated by multiplying the layers’ area by the thickness of 600 µm. The root size of canines and lateral incisors was compared between the impaction and normal eruption sides. Results: Sixty-two patients showed buccal canine impaction, and 38 presented palatal impaction. The mean root volume of canines on the impaction side was significantly greater than that on the normal eruption side; either the tooth was buccally or palatally impacted (p<0.001). The lateral incisors on the side of buccally-impacted canines showed a significantly smaller root volume than that of the contralateral side (p<0.001). However, there was no significant difference in the root size of lateral incisors between the two sides in cases presenting palatal canine impaction (p=0.177). Conclusion: The difference in root volume of canines between the two sides can serve as an indicator of canine impaction. The reduction in the root size of the lateral incisor on the side of the buccally impacted canine may be due to root resorption created by pressure from the canine’s crown.
MARPE expander activation load with different configurations of extender arms heights: in-vitro evaluation
Authors: FARIA Staell Ribeiro de , ANDRADE Túlio Rodrigues de , ANDRÉ Cristiane Barros , MONTALLI Victor Angelo Martins , BARBOSA Jurandir Antonio , BASTING Roberta Tarkany
Published: September 2024

ABSTRACT Objective: Evaluate the load mini-implants exert on the artificial bone when expanding the MARPE EX in three different extension arm configurations. Methods: A device simulating the human palate was fabricated and attached to a universal testing machine, for conducting tests with different MARPE expanders (n=5): non-adjustable/control (MARPE SL, Peclab) or with low, intermediate, and high extender arms (MARPE EX, Peclab). The expanders were manually activated until failure of the device occurred, and maximum load values were recorded. Load averages were also calculated for every five activations until the twentieth activation. Results: The generalized linear mixed model for repeated measures over time showed that there was significant increase in load with activations for all expanders (p=0.0004). Up to the twentieth activation, the expander with low extender arms presented higher load than the others, while the expander with high extender arms showed lower load values (p<0.05). There was no significant difference among expanders regarding the number of activations (p=0.0586), although there was a trend towards fewer activations until fracture for the control expander. It was observed that the higher the configuration, the lower the force the mini-implants delivered to the bone. The control expander provided a force magnitude similar to that of the adjustable expander when positioned at the intermediate height. Conclusions: The activation load of MARPE expanders is influenced by the type of presentation of the extensor arms, with higher configurations resulting in lower force delivered by the mini-implants to the bone.
Do the methods for cleaning the base of brackets used in indirect bonding interfere with adhesion to tooth enamel?
Authors: SIMÃO Carlos Eduardo de Paiva Campos Nogueira , SILVA Ana Luiza Ferreira da , ARAÚJO Marcela Emílio de , CALDAS Sergei Godeiro Fernandes Rabelo
Published: September 2024

ABSTRACT Objective: The objective of this study was to evaluate the shear bond strength of metal brackets bonded with indirect bonding, under different surface treatment protocols. Material and Methods: 40 bovine teeth were randomly divided into four groups (n = 10), according to the type of surface treatment: G1 = 70% alcohol, G2 = air/water spray, G3 = 100-µm aluminum oxide blasting, G4 = direct boning. After drying, the standard Edgewise central incisor brackets were bonded with light-cured resin. The brackets were moved from the plaster models by means of a transfer tray made with condensation silicone, and bonded to the surface of the enamel with self-curing adhesive. The samples were submitted to shear tests by a universal test machine. Data were analyzed with SPSS 20.0 by the one-way ANOVA test and the Tukey post-test. Results: No statistically significant difference (p=0.174) was observed between the mean forces measured between the group for shear strength values of the groups during the test: G1 (5.33 MPa), G2 (3.52 MPa) and G3 (4.58 MPa). Conclusion: The bracket surface treatment protocols presented similarities in shear bond strength test. However, alcohol 70% and oxide blasting presented higher absolute values of resistance than the water group.
Associação entre limitação no trabalho por causa da voz, condições de trabalho e vulnerabilidade social de escolas metropolitanas no Brasil
Authors: Araújo Andrezza Maynara Vieira , Antunes Talisson Farley Evangelista , Rezende Bárbara Antunes , Medeiros Adriane Mesquita de
Published: September 2024

RESUMO Objetivo Verificar a prevalência de limitação no trabalho por causa da voz de professores brasileiros da educação básica das escolas metropolitanas e a associação com a jornada de trabalho, ruído autorreferido e Índice de Vulnerabilidade Social das escolas. Métodos Estudo observacional transversal com amostra probabilística de professores brasileiros. Participaram 4979 professores de escolas metropolitanas e foram analisadas as seguintes variáveis: idade, gênero, nível de ensino, jornada de trabalho por 40 horas semanais ou mais, percepção do ruído intenso com necessidade de elevar a voz e Índice de Vulnerabilidade Social do município. Foi realizada análise descritiva e modelo multivariado de regressão de Poisson, com variância robusta e nível de significância de 5%. Resultados A prevalência brasileira de limitação no trabalho por causa da voz foi de 20,37%. Verificou-se diferença estatisticamente significativa entre limitação no trabalho por causa da voz e ser do gênero feminino, nível de ensino fundamental ou níveis combinados, jornada de trabalho de 40 horas ou mais, percepção de elevar a voz na presença de ruído intenso no trabalho e Índice de Vulnerabilidade Social médio e alto/muito alto. Conclusão A cada 100 professores, aproximadamente 20 relataram limitação no trabalho por causa da voz no Brasil e, considerando as unidades federativas, observou-se maior prevalência nas Regiões Norte e Nordeste. Ser do gênero feminino, trabalhar 40 horas semanais ou mais, lecionar para o ensino fundamental ou em níveis combinados, perceber necessidade de elevar a voz devido ao ruído intenso e trabalhar em escolas localizadas em regiões com Índice de Vulnerabilidade Social médio, alto/muito alto foram aspectos que evidenciaram o aumento da prevalência de percepção de limitação no trabalho devido a problemas vocais.
Water quality and land use in Ipanema Stream Watershed (Doce River Basin/Brazil): effects of urbanization
Authors: von Rückert Gabriela , Figueredo Cleber Cunha , Barros John Ellis de Faria , Silva Raquel Ramos da
Published: September 2024

ABSTRACT We evaluated the water quality conditions and their relationships with the land cover/use throughout the entire Ipanema Stream Watershed (ISW), also considering temporal differences. Thirteen water quality variables were evaluated in fourteen sampling stations located in rural, peri-urban, and urban zones in both dry and rainy seasons from 2015 to 2018. A PCA was performed to detect which variables explain most of the data variability and to detect spatial and/or temporal trends in ISW water quality. The four PCs explained 74% of the data variability, but strong relationships with environmental variables were only observed in the two main components. PC1 was related to nutrients, alkalinity, BOD, electrical conductivity, DO, and pH, while PC2 was related to total suspended solids (TSS) and chlorophyll-a. A spatial pattern related to sampling stations and land uses was observed, but no temporal pattern was identified. Ammoniacal-N and TSS were most important variables (loading values >│0.75│), and showed higher values in urban zone probably due to inadequate sewage discharge. Ipanema Stream did not show a self-purification capacity, and the high TSS concentrations in rural mainstream ask for riparian zone restoration. These management actions for water quality improvement would even contribute to the recovery of Doce River.
Hydrogel and arduino system in the transplantation of Schinus terebinthifolia for urban afforestation
Authors: Pereira Thalita Maciel , Timóteo Caroline de Oliveira , Cunha Neto Antonio Rodrigues da , Pereira Matheus Henrique de Brito , Paiva Renato , Paiva Patrícia Duarte de Oliveira , Reis Michele Valquíria dos
Published: September 2024

Abstract Urban forest provide medium and large vegetation cover in urban areas. Planting native trees on sidewalks is a viable approach to reduce damages caused by extensive urbanization. The use of hydrogels seems to increase the success of seedling transplantation in urban environments. Thus, this study aims to evaluate the efficacy of Schinus terebinthifolia in urban afforestation, focusing on its adaptation and post-transplant survival using hydrogel and being monitored by an arduino system. The concentrations of the commercial hydrogel used were 0.75, 1.5, 3.0, and 6.0 g L-1, and two controls were also established: a control treatment without irrigation and without hydrogel, and a control with daily water irrigation. The evaluation was continuous for 14 days, and the parameters analyzed were substrate temperature and moisture, relative water content (RWC), electrolyte extravasation (EEE), chlorophyll content, and biochemical compound. A completely randomized design was adopted, consisting of 6 treatments with 9 replicates each. The results indicate that S. terebinthifolia is a highly resilient species suitable for urban afforestation, showing remarkable tolerance to transplantation and water restriction. It was observed that the use of hydrogels significantly contributes to maintaining substrate moisture, resulting in greater stability of the transplanted seedlings. The Arduino system allowed for continuous and precise evaluation of substrate conditions, optimizing the management of urban afforestation and validating the efficiency of the applied treatments. Positive responses were observed when using hydrogels in terms of relative water content, membrane stability, and antioxidant activity, even under water restriction. The viability of Schinus terebinthifolia for urban afforestation stands out, through the application of hydrogels and the use of the Arduino system to monitor parameters such as temperature and humidity.
Narrative review on the relationship between toxic stress and occupational performance in early childhood
Authors: Poblete Almendras María José , Contreras Vergara Catalina , Díaz Vargas Belén , Martínez Muñoz Belén , Pino Hueche Sebastián , Urzúa Riveros Nadia , Olivares Araya Pablo
Published: September 2024

Abstract Introduction Early childhood is a crucial stage for human development during which the environment significantly influences brain formation and functioning. Adverse experiences during this period can trigger toxic stress, which in turn may hinder the achievement of developmental milestones. Objective This study aims to describe the main adverse childhood experiences that lead to toxic stress in children aged 0 to 6 years, also considering their implications for mental health and occupational performance. Method A narrative review was conducted using the databases Web of Science, EBSCO, Scopus, and Psychology Database. Ten relevant articles were selected for analysis. Results The search revealed that poverty, child violence, and discrimination are the three most common adverse experiences generating toxic stress. Additionally, protective factors that can mitigate the impact of these adverse experiences, thereby strengthening childhood resilience, were identified. Among these factors, positive parenting characteristics stand out as the primary protective element. Conclusion Although a direct relationship between toxic stress and occupational performance was not found in the reviewed literature, it is concluded that the latter is indirectly affected because of its connection with mental health and child development – key aspects of participation in daily activities. This underscores the importance of expanding research in the field of occupational therapy, as it can significantly contribute to the promotion and prevention of mental health in childhood.
Contribuições interacionais de pessoas em situação de rua para a sustentabilidade urbana
Authors: Frehse Fraya , Reis Caio , Patitucci Giulia
Published: September 2024

Resumo Será que é possível vislumbrar, no socialmente controverso tema do morar nas ruas, qualquer contribuição para a agenda das Nações Unidas (ONU) em prol da sustentabilidade urbana? Enfrentamos tal questão interpretativamente com base em procedimentos investigativos que potencializam o emprego de métodos qualitativos das Ciências Sociais em projetos transdisciplinares – de colaboração entre pesquisadoras/es e agentes da prática profissional –, acerca dos chamados Objetivos de Desenvolvimento Sustentável (ODS’s) da ONU. Argumentamos que as contribuições compreendem padrões de interação face a face por e acerca de pessoas em situação de rua nos espaços públicos urbanos. Em relação particularmente ao ODS 11, isto é, “tornar as cidades e assentamentos humanos mais inclusivos, seguros, resilientes e sustentáveis”, na São Paulo pandêmica (2020-2022), as contribuições abrangem interações de três tipos, aquelas ambientalmente (i) sustentáveis e (ii) inclusivas por pessoas em situação de rua com objetos materiais, animais e plantas em ruas e praças; e aquelas (iii) socialmente inclusivas protagonizadas por profissionais que assistem quem mora nas ruas. Enquanto os dois primeiros tipos interacionais são contribuições já vigentes, atuais de pessoas em situação de rua para as metas 11.6 e 11.7 do ODS 11, o terceiro é possibilidade futura para a Meta 11.1 por parte de profissionais dedicadas/os a essas mesmas pessoas.
Influence of nitrogen on bell pepper yield in open field conditions during autumn-winter
Authors: Vidigal Sanzio M , Moreira Marialva A
Published: September 2024

ABSTRACT Nitrogen (N) deserves special attention in the fertilization recommendation for bell peppers, as it is the nutrient absorbed in greater quantity, standing out for the amount required and the functions it performs in the plant. The objective was to evaluate the influence of nitrogen applied as top dressing on bell pepper production in open field during the autumn/winter period. The experiment was conducted in Red-Yellow Argisol. A randomized complete block design with four replications was used. Treatments consisted of nitrogen rates applied as top dressing (0, 75; 150; 300; and 450 kg/ha). Nitrogen increased the number and fresh mass of fruits per plant. The SPAD Reading increased with the increment of nitrogen rates in the three evaluation periods and with the evaluation period. Bell peppers grown during the autumn/winter period showed high productive potential associated with nitrogen rates higher than currently recommended. The yield of marketable fruits increases until 214 kg/ha of N. The critical level for the SPAD reading varied with the age of the plants, with estimated critical values of 53.2, 66.5, and 61.9 at 35, 56, and 154 days after transplanting (DAT).
Estandarización de los criterios fundamentales para la internacionalización de la Educación Superior en México
Authors: Lara Sandy Elizabeth Martínez , González Gerardo Tamez
Published: September 2024

Resumen La internacionalización de la Educación Superior de alta relevancia dentro de las instituciones educativas. En efecto, el abordaje y fundamento radica dentro de los aspectos académicos e institucionales, para la creación de alianzas estratégicas que contribuyan al fortalecimiento del proceso. El objetivo fundamental es proponer un modelo teórico capaz de estandarizar las estrategias fundamentales para alcanzar la internacionalización en Instituciones públicas de Educación Superior, a partir de actividades claves que incorpora los compotentes de Educación en la globalización, investigación educativa, difusión de la movilidad académica y Educación inclusiva. El análisis de datos fue realizado bajo una metodología cuantitativa de carácter descriptivo-correlacional, mediante la aplicación de 86 encuestas a universidades públicas del norte de México. Es así como, el modelo muestra a la Educación inclusiva como el indicador significativo, mientras que el indicador con menor relevancia es difusión de la movilidad académica. En conclusión, se constata que la Educación inclusiva funciona a través de mecanismos encaminados hacia la promoción de la equidad de género, la convivencia cultural de paz y cohesión social, el respeto a la identidad de sexo, la inclusión de personas con capacidades diferentes y la diversidad cultural.
Incentivos para la formación inicial docente en Chile. Del estado docente a estado subsidiario en Educación
Authors: Rivas-Valenzuela Marcela
Published: September 2024

Resumen El ensayo presenta una línea argumentativa en torno al análisis de las políticas de incentivo para el ingreso a la FID en Chile. Se estructura en base a dos dimensiones reflexivas: a) Construcción de sujetos alternizados en las estrategias de incentivo. Apartado orientado a reflexionar en torno a la distinción de clases de estudiantes que subyacen en las estrategias dispuestas para el ingreso a pedagogía. La segunda dimensión b) Calidad como epíteto fundacional en la Educación de mercado; busca insistir en el análisis, incorporando la concepción de calidad como una dimensión relevante y de construcción advenediza en la política educativa. Se concluye señalando, que la implementación de estrategias, responde de manera desarticulada a las necesidades contextuales y profesionales, relegando las legítimas demandas provenientes de los contextos educativos locales.
Germination and development of passion fruit seedlings under saline and water stresses
Authors: Tártari Graziela Goulart , Schwarz Sergio Francisco , Strassburger André Samuel , Petry Henrique Belmonte , Schneider Leonardo André , Ebeling Luis Henrique dos Santos
Published: September 2024

Abstract The objective of this work was to evaluate the effects of saline and water stresses on the germination of seeds and of saline stress on the development of seedlings of 'SCS437 Catarina' Passiflora edulis. The seeds were germinated on paper moistened with NaCl and PEG 6,000 solutions, at the osmotic potentials of 0.00, −0.25, −0.50, −0.75, −1.00, and −2.00 MPa. The produced seedlings were exposed only to NaCl. The seeds show tolerance to saline stress up to an osmotic potential of −0.75 MPa, while the seedlings present tolerance up to an osmotic potential of −0.50 MPa (10.96 mS cm−1).
Hydrologic cycle influence on desmid abundance in a shallow floodplain lagoon in the Brazilian semiarid region
Authors: Santos Maria Aparecida dos , Ferragut Carla , Silva Daniela Mariano Lopes da , Moura Carlos Wallace do Nascimento
Published: September 2024

Abstract Aim Knowledge of hydrological characteristics is essential for understanding ecological processes in floodplains, which can support sustainable management. We evaluated environmental variations in a shallow floodplain lagoon located in the Chapada Diamantina, Andaraí, Bahia. We aim to identify phases of the hydrologic cycle and their influence on desmid density, which is a group of algae known for its potential as bioindicator of trophic changes. Methods Bimonthly samplings were performed at four points in the lagoon. Abiotic (temperature, conductivity, pH, transparency, depth, dissolved oxygen, total and dissolved nutrients) and biotic (macrophyte cover, phytoplankton chlorophyll-a, and desmid density) variables were determined. The Trophic State Index (TSI) was calculated based on phytoplankton chlorophyll-a, and total phosphorus concentration. Results The lagoon was characterized by well-oxygenated, slightly acidic waters with low electrical conductivity. According to the TSI, the lagoon varied from mesotrophic to hypereutrophic during the study period. The driest months (August and October) were marked by high water transparency, low depth, nitrogen concentration, and macrophyte coverage. The highest value of accumulated precipitation was registered in December, when there was an increase in depth and a decrease in electrical conductivity and PT concentration. Two phases of the hydrologic cycle were evidenced and determined by the depth and nutrient concentrations. The highest abundance of desmids occurred at the end of the rainy season when the nutrient availability and pH were higher, and the depth was reduced. Conclusions Our results suggest that the flood pulse was the determining factor of the local environmental conditions and that, together with the macrophyte morphological traits, it influenced desmid abundance and distribution in a floodplain lagoon in the semiarid region.
Are functional freshwater Nematode traits a good tool for view an early succession on hard artificial substrate in a reservoir of Brazilian semiarid?
Authors: Barros Fábio Lucas de Oliveira , Tilbert Sebastião , Pinto Taciana Kramer , Silva Maria Cristina da , Castro Francisco José Victor de , Nogueira Júnior Miodeli
Published: September 2024

Abstract Aim The Brazilian tropical semiarid is a biome with small freshwater ecosystems, often intermittent, acting as a mosaic in constant transformation between dry and rainy seasons. Meiobenthic communities play crucial roles in these environments, and understanding their colonization and succession processes is essential to comprehend how these organisms’ structure in a defaunated habitat. In addition to the traditional taxonomic approach, functional traits provide valuable insights into the dynamics of these processes. In this study, we tested the following hypotheses: i) although meiofauna consists of microscopic organisms with limited active dispersion, they quickly colonize new substrates, increasing in abundance, richness, and diversity; ii) functional traits of freshwater Nematoda are a good tool for view an early succession on hard artificial substrate in a lentic reservoir. Methods We placed 27 ceramic plates in a reservoir in the Brazilian semiarid and randomly sampled three replicates each week over nine weeks. Weekly differences in community abundance, richness, and diversity were tested with one-way ANOVA and pairwise PERMANOVA. Results Nematoda predominated in the first week, with Rotifera taking over from the second week of the experiment. No differences were observed in the Nematode taxonomic structure over the weeks. There was an increase in the functional complexity of the Nematoda community over time, as indicated by the maturity index and trophic structure. Colonizers/persistents emerged quickly in the first week. Deposit feeders dominated, but an increase in trophic diversity was observed with the growing presence of chewers over the weeks. Conclusions This study highlights that the functional traits of Nematoda represent a robust tool for assessing ecological succession in freshwater lentic environments in the tropical semiarid.
Algal Diversity and its Relationship with Seasonal Variation of Water Quality in Gajedi Lake, Rupandehi District, Nepal
Authors: Poudel Pushpa , Ghimire Narayan Prasad , Rai Shiva Kumar
Published: September 2024

The current study focuses on the algal diversity of Gajedi Lake in different seasons in connection to the lake's water quality indicators. Algae and water samples were collected from eight peripheral sites of the lake in summer, rainy, and winter seasons in 2021. The water temperature, conductivity, total dissolved solids, hardness, alkalinity, phosphorus, free CO2, and dissolved oxygen were recorded as high during the summer season while water pH was high during the rainy season. Altogether 93 species of algae were reported under 52 genera, 30 families, 7 classes and 6 phyla in this study. The largest phylum was Bacillariophyta (44.08%) followed by Chlorophyta (17.20%), Euglenozoa (10.97%), Cyanobacteria (12.90%), Charophyta (10.75%) and Miozoa (1.07%). The Shannon-Weiner diversity index indicated high abundance during the summer season, with more evenly distributed algal species. More algal species were recorded in the winter season. Trachelomonas, Navicula, and Nitzschia were dominant genera during summer; Anagostidinema, Desmodesmus, and Pinnularia were dominant during rainy; and Trachelomonas, Tetradesmus, and Gomphonema were dominant during winter. The redundancy analysis ordination showed that the algal composition varied along with the seasonal changes in physico-chemical parameters. Temperature, pH, and conductivity were thus identified as significant factors influencing species richness.
Machines in Flames: Computation, Destruction, and the Lure of Archives
Authors: Dekeyser Thomas , Culp Andrew
Published: September 2024

Machines in Flames is a secret history of destruction that follows the footsteps of a clandestine group of 1980s computer workers who bombed tech companies. The film combines archival traces, a viral desktop choreography, and late-night video recordings of the group’s targets into a meditation on computation, destruction, and the lure of archives.
Serious game for cognitive assessment. Validation of a psychometric embedded test
Authors: Quimbaya Jorge , Herrera Alejandra , Mejia Cesar
Published: August 2024

The evaluation of performance in serious video games is crucial when it comes to providing empirical evidence of the effectiveness of this type of educational tools. In turn, the design of psychometric tests demands specific procedures aimed at estimating validity levels. This paper presents the validation process of a psychometric test embedded in a video game, for the assessment of executive functions, understood as a set of cognitive processes associated with the functioning of the frontal lobes, including planning, inhibition, flexibility and monitoring. The sample consisted of 171 participants aged between 5 and 12 years (Mean=8.27; SD=1.589), students at elementary school. The analyses performed included Cronbach's Alpha and McDonald's Omega internal consistency indexes and an Exploratory Factor Analysis. The results indicate good levels of reliability and excellent fit indices for a two-factor model
Nuevos residentes, nuevos paladares: transformaciones espaciales y comerciales en Ciudad de México
Authors: Olmedo-Neri Raul Anthony
Published: September 2024

En el presente artículo se analiza la relación entre la gentrificación y el paisaje económico-gastronómico en dos colonias del centro de la Ciudad de México. El objetivo es reajustar conceptualmente dichos términos y reconocer las singularidades de su manifestación en América Latina. Con ese fin, se construye un marco teórico que esboza los tres núcleos epistemológicos para el análisis de la gentrificación en la región y que articula tal concepto con la mercantilización cultural y la gourmetización. Mediante un análisis cuantitativo de tipo descriptivo, se examina la transformación del paisaje alimentario a través de la presencia y la diversificación de comercios gastronómicos y comercios al por menor en las colonias Condesa y Santa María La Ribera. Los resultados muestran que existe una tendencia al incremento de la actividad comercial bajo el modelo de los minisúper y otros negocios que diversifican y, a la vez, homogenizan la oferta cultural y gastronómica en estas colonias. Sin embargo, la pandemia afectó de manera particular dichos barrios: mientras que en Condesa se ralentizó la proliferación de estos comercios, en Santa María La Ribera aumentaron su presencia. Se concluye que esta propuesta analítica ofrece una mirada que puede fortalecer el estudio cualitativo de los efectos desarrollados por la gentrificación y sus consecuencias en otras áreas de la cotidianidad urbana.
Organización del trabajo y protección social en cooperativas argentinas
Authors: Massera Maricel
Published: September 2024

Las cooperativas de trabajo en Argentina tuvieron un importante auge en los inicios del siglo XXI debido a las crisis económicas y sociales que afectaron al país. Esta situación supuso una reestructuración de la política social y de empleo que puso el énfasis en el trabajo como medio de inclusión social. El objetivo del presente artículo es describir y caracterizar el tipo de inserción laboral que las cooperativas de trabajo proponen a sus miembros en términos de ingresos, formalización, beneficios, garantías laborales y modos en que organizan la producción y los tiempos. Se presentan los hallazgos de una investigación descriptiva, basada en la aplicación de encuestas y entrevistas semiestructuradas a miembros de 27 cooperativas de trabajo del aglomerado Gran Santa Fe, ubicado en la pampa argentina. En el estudio, realizado entre los años 2019 y 2020, se reconoce la posibilidad de inserción laboral que ofrecen las cooperativas a muchas personas que han quedado excluidas del mercado de trabajo formal e incluso de convertirse en un espacio de contención, de encuentro y de formación para asociadas y asociados. Sin embargo, muestra situaciones de precariedad laboral de manera casi generalizada entre las personas que trabajan en las cooperativas, enmarcadas en la falta de condiciones de protección social y de regulación económica adecuadas para las organizaciones asociativas y autogestionadas.