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"Rebelo da Silva, N."
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A framework for stakeholder engagement during systematic reviews and maps in environmental management
2017
People have a stake in conservation and environmental management both for their own interests and the sake of the environment itself. Environmental decision-making has changed somewhat in recent decades to account for unintentional impacts on human wellbeing. The involvement of stakeholders in environmental projects has been recognised as critical for ensuring their success and equally for the syntheses of evidence of what works, where, and for whom, providing key benefits and challenges. As a result of increased interest in systematic reviews of complex management issues, there is a need for guidance in best practices for stakeholder engagement. Here, we propose a framework for stakeholder engagement in systematic reviews/systematic maps, highlighting recommendations and advice that are critical for effective, efficient and meaningful engagement of stakeholders. The discussion herein aims to provide a toolbox of stakeholder engagement activities, whilst also recommending approaches from stakeholder engagement research that may prove to be particularly useful for systematic reviews and systematic maps.
Journal Article
Effect of Extraction Methodology on the Phytochemical Composition for Camelia sinensis “Powdered Tea Extracts” from Different Provenances
by
Barreira, Sérgio
,
Hegazy, Mohamed-Elamir F.
,
Efferth, Thomas
in
Acids
,
Beverages
,
Bioavailability
2022
(1) Background: beverages based on extracts from Camellia sinensis are popular worldwide. Due to an increasing number of processed teas on the market, there is a need to develop unified classification standards based on chemical analysis. Meanwhile, phytochemical characterizations are mainly performed on tea samples from China (~80%). Hence, data on teas of other provenances is recommended. (2) Methods: in the present investigation, we characterized lyophilised extracts obtained by infusion, maceration and methanolic extraction derived from tea samples from China, Japan, Sri Lanka and Portugal by phytochemistry (catechins, oxyaromatic acids, flavonols, alkaloids and theanine). The real benefits of drinking the tea were analysed based on the bioavailability of the determined phytochemicals. (3) Results: the infusions revealed the highest total phenolic contents (TPC) amounts, while methanolic extracts yielded the lowest. The correlation matrix indicated that the levels of phenolic compounds were similar in the infusions and methanolic samples, while extractions made by maceration were significantly different. The differences could be partially explained by the different amounts of (-)-epigallocatechin gallate (EGCG), (-)-epicatechin gallate (ECG) and gallic acids (GA). The catechin percentages were significantly lower in the macerations, especially the quantity of EGCG decreases by 4- to 5-fold after this process. (4) Conclusions: the results highlight the importance of the processing methodology to obtain “instant tea”; the composition of the extracts obtained with the same methodology is not significantly affected by the provenance of the tea. However, attention should be drawn to the specificities of the Japanese samples (the tea analysed in the present work was of Sencha quality). In contrast, the extraction methodology significantly affects the phytochemical composition, especially concerning the content of polyphenols. As such, our results indicate that instant tea classification based on chemical composition is sensible, but there is a need for a standard extraction methodology, namely concerning the temperature and time of contact of the tea leaves with the extraction solvent.
Journal Article
Assessment of Subjective Perceived Exertion at the Anaerobic Threshold with the Borg CR-10 Scale
by
Graetz, Juliana P
,
Tamburús, Nayara Y
,
Rebelo, Ana C S
in
Anaerobic threshold
,
Biology
,
Cardiology
2011
The purpose of this study was to evaluate the anaerobic threshold (AT) with a graphic visual method for estimating the intensity of ventilatory and metabolic exertion and to determine the ratings of perceived exertion (RPE) on the Borg CR-10 scale during a continuous ramp type exercise test (CT-R). Forty healthy, physically active and sedentary young women (age 23.1 ± 3.52 years) were divided into two groups according to their fitness level: active group (AG) and sedentary group (SG) and were submitted to a CT-R on a cycloergometer with 20 to 25 W/min increments. Shortly before the end of each one-minute period, the subjects were asked to rate dyspnea (RPE-D) and leg fatigue (RPE-L) on the Borg CR-10 scale. After the AT was determined with the graphic visual method, the score that the volunteers gave on the Borg CR10 scale was verified. Data were analyzed using the Mann-Whitney and Spearman correlation tests with the significance level set at 5%. The mean ratings of RPE-L and RPE-D at the AT level were not significantly different between groups (p > 0.05). Significant correlations were found between VO2, heart rate (HR), power output and RPE for both groups. The muscular and respiratory RPE, according to the Borg CR-10 scale, were correlated with the AT, suggesting that scores close to 5, which correspond to a \"strong\" perception, may be used as parameters for quantifying aerobic exercise intensity for active and sedentary individuals. The similar perception of exercise intensity, which corresponded to the AT of different individuals, makes it possible to prescribe exercise at an intensity equivalent to the AT by means of the RPE. Key pointsInterest in quantitative and systematic determination of the AT is growing, however, qualitative studies measure the AT by perceived exertion, are still unsubstantial.Borg CR-10 scale is a category scale with ratio properties consisting of numbers related to verbal expressions, which allows rate comparison between intensities as well as a determination of intensity levels.Scores close to 5 expressed on the Borg CR-10 scale, which correspond to a \"strong\" perception, may be used as parameters for quantifying the aerobic exercise intensity of both active and sedentary women.
Journal Article
Biological activity of essential oil from Piper mikanianum leaves and its major compound against storage pests and fungi
by
Rebelo, Ricardo Andrade
,
Poitevin, Carolina Gracia
,
Duarte, Henrique da Silva Silveira
in
Animals
,
antifungal properties
,
Aquatic Pollution
2025
The use of synthetic insecticides and fungicides is the main method for controlling of coleopteran pests and fungal contamination during storage. However, intensive use of these products has caused several negative impacts. Thus, as an effective and safer alternative, essential oils (EOs) are a promising and efficient solution for integrated management in storage systems. The present study aimed to investigate the biological activity of
Piper mikanianum
EO against storage pests and fungi. The EO was extracted by hydro-distillation for 4 h, and the chemical composition was determined by gas chromatography coupled to mass spectrometry. A total of 29 compounds were identified in
P. mikanianum
EO, with safrole as the major compound, corresponding to 30.46%. This compound was later isolated by crystallization. The insecticidal effect of
P. mikanianum
EO and safrole was evaluated by fumigation, causing 100% mortality of
Sitophilus zeamais
,
Sitophilus oryzae
,
Cryptolestes ferrugineus
, and
Rhyzopertha dominica
at 138.38 μL L
−1
of air. The fungicidal activity was assessed by volatilization and direct contact against
Fusarium graminearum
.
Piper mikanianum
EO and safrole inhibited fungal growth by volatilization at 92% and 78.3%, respectively, at a 100% concentration; by contact, both treatments caused inhibition above 90% at a 1.5% concentration. Safrole showed a lower value (0.5%) of minimum inhibitory concentration compared to EO (1.5%) by contact. These results confirmed the potential of
P. mikanianum
EO and its main compound, safrole, as biopesticides in the combined management of storage pests and diseases, proving to be a promising alternative to synthetic pesticides.
Journal Article
Structural Study of N-(1,3-Benzothiazol-2-yl)-4-Halobenzenesulfonylhydrazides: Hirshfeld Surface Analysis and PIXEL Calculations
by
Pinheiro, Alessandra C.
,
Wardell, James L.
,
Low, John N.
in
1,3-benzothiazol
,
Asymmetry
,
Chloride
2024
Hydrazonylsulfones such as Bt-NHNHSO2R and their iminotautomers have been studied as optical materials and for their biological potential. In this work, a structural study has been carried out on N-(1,3-benzothiazol-2-yl)-4-(halogenobenzenesulfonyl)-hydrazides (1: X = F, Cl, Br). For (1: X = F), single-crystal X-ray diffraction, Hirshfeld surface analysis, and PIXEL calculations were conducted, while in (1: X = Cl) and (1: X = Br), only single-crystal X-ray diffraction studies were successfully conducted due to the disordering of the solvent. Each compound crystallises with two independent but similar amino tautomers in the asymmetric units: compound (1: X = F) crystallises in the monoclinic P21/c, and the isostructural pair (X: 1 = Cl and Br) crystallises in the tetragonal P-421c space group. In the most stable motif of the supramolecular arrangement, the molecules of the asymmetric unit are connected by classical N–H(hydrazinyl)···N(thiazoyl) hydrogen bonds and several face-to-face, offset π···π interactions. This motif has a very powerful influence on the crystal structure due to its direct links with the other weaker motifs. Other significant intermolecular interactions found in the structure include N–H(hydrazonyl)···O(sulfonate) bonds. Analogous intermolecular interactions were found in similar compounds, leading to the conclusion that those interactions are the most important instabilizing the solid state of hydrazonylsulfones.
Journal Article
A high quality chromosome-level genome assembly for the golden mussel (Limnoperna fortunei)
by
Juliana Alves Americo
,
The Darwin Tree Of Life Project Consortium
,
Mauro De Freitas Rebelo
in
Genomes
,
Genomics
,
Introduced species
2022
The golden mussel (Limnoperna fortunei) is a highly adaptive species that causes environmental and socioeconomic losses in invaded areas. Reference genomes have proven to be a valuable resource for studying the biology of invasive species. While the current golden mussel genome has been useful for identifying new genes, its high fragmentation hinders some applications. In this Data Note, we provide the first chromosome-level reference genome for the golden mussel. The genome was built using Hi-C, PacBio HiFi and 10X sequencing data. The final assembly contains 99.4% of its total length assembled to the 15 chromosomes of the species and a scaffold N50 of 97.05 Mb. Approximately 47% of the genome was annotated as repetitive sequences. A total of 34 862 protein-coding genes were predicted, of which 84.7% were functionally annotated. This new high quality genome is expected to support both basic and applied research on this invasive species. Competing Interest Statement The authors have declared no competing interest.
Comparative study of American tegumentary leishmaniasis between childhood and teenagers from the endemic areas Buriticupu, Maranhao and Corte de Pedra, Bahia, Brazil
1998
A comparative study on children aged 0-15 years, with American tegumentary leishmaniasis (ATL), in the endemic regions of Buriticupu (MA) and Corte de Pedra (BA), whereby 214 cases were detected between 1982 and 1993, 78 (36.4%) of them originated from Corte de Pedra and 136 (63.6%) from Buriticupu. In Corte de Pedra, most cases were observed in patients aged between 0-5 years. Twenty nine (37.2%) cases; 62% of those were male. In the Buriticupu region, 88 (64.7%) cases occurred in patients of 11-15 years of age, where in 73.8% consisted of male. In both researched regions, brunetts were predominant, with a ratio of 65.4% in Corte de Pedra and 75% in Buriticupu. Twenty six (33.3%) children in the village of Corte de Pedra were farmers, predominantly male (57.7%), generating statistical significance (chi 2 = 11.21). Twenty one (80.8%) farmers were aged 11-15 years. Thirty seven and a half per cent of the children from Buriticupu were students, however, 41 (30.2%) were farmers, representing 39 (44.3%) cases; all of them male. Both in Buriticupu and Corte de Pedra, the unique wound was predominant, corresponding to 57.7% and 53.7%, respectively. The wounding time stood out from one to three months, with 45 (69.2%) cases in Corte de Pedra and 73 (61%) in Buriticupu (chi 2 = 11.82). As to the wound locations, it has been observed that they were most constantly present on the lower limbs, with 77.2% in Corte de Pedra and 58.9% in Buriticupu (chi 2 = 27.9). The cutaneous case mostly found in Corte de Pedra was the ulcerous one (91%). IDRM was positive in 61 (78.2%) children originated from Corte de Pedra, wherein no statistical difference was detected between age ratio and positivity of the test (chi 2 = 0.0669).
Journal Article
Comparative study of american tegumentary leishmaniasis between childhood and teenagers from the endemics areas Buriticupu (Maranhão) and Corte de Pedra (Bahia), Brazil
by
Silva, Antonio Rafael da
,
Gama, Mônica Elinor A
,
Balby, Ivelise Theresa A
in
Children
,
Comparative studies
,
Farmers
1998
A comparative study on children aged 0-15 years, with American tegumentary leishmaniasis (ATL), in the endemic regions of Buriticupu (MA) and Corte de Pedra (BA), whereby 214 cases were detected between 1982 and 1993, 78 (36.4%) of them originated from Corte de Pedra and 136 (63.6%) from Buriticupu. In Corte de Pedra, most cases were observed in patients aged between 0-5 years. Twenty nine (37.2%) cases; 62% of those were male. In the Buriticupu region, 88 (64.7%) cases occured in patients of 11-15 years of age, where in 73.8% consisted of male. In both researched regions, brunetts were predominant, with a ratio of 65.4% in Corte de Pedra and 75% in Buriticupu. Twenty six (33.3%) children in the village of Corte de Pedra were farmers, predominantly male (57.7%), generating statistical significance (c2 = 11.21). Twenty one (80.8%) farmers were aged 11-15 years. Thirty seven and a half per cent of the children from Buriticupu were students, however, 41 (30.2%) were farmers, representing 39 (44.3%) cases; all of them male. Both in Buriticupu and Corte de Pedra, the unique wound was predominant, corresponding to 57.7% and 53.7%, respectively. The wounding time stood out from one to three months, with 45 (69.2%) cases in Corte de Pedra and 73 (61%) in Buriticupu (c2 = 11.82). As to the wound locations, it has been observed that they were most constantly present on the lower limbs, with 77.2% in Corte de Pedra and 58.9% in Buriticupu (c2 = 27.9). The cutaneous case mostly found in Corte de Pedra was the ulcerous one (91%). IDRM was positive in 61 (78.2%) children originated from Corte de Pedra, wherein no statistical difference was detected between age ratio and positivity of the test (c2 = 0.0669).
Journal Article
Estudo comparativo da leishmaniose tegumentar americana em crianças e adolescentes procedentes das áreas endêmicas de Buriticupu (Maranhão) e Corte de Pedra (Bahia), Brasil
by
Silva, Antonio Rafael da
,
Rebêlo, José Manuel M.
,
Costa, Jackson M.L.
in
Adolescentes
,
Buriticupu
,
Corte de Pedra
1998
Analisou-se o comportamento da LTA em crianças e adolescentes na faixa etária de 0-15 anos, provenientes das áreas endêmicas de Buriticupu (MA) e Corte de Pedra (BA). Nestas regiões, foram cadastrados 214 pacientes no periodo de 1982 a 1993, sendo 78 (36,4%) oriundos de Corte de Pedra e 136 (63,6%) de Buriticupu. Em Corte de Pedra a faixa etária predominante foi de 0-5 anos com 29 (37,2%) casos. Destes, 62% pertenciam ao sexo masculino. Na região de Buriticupu, 88 (64,7%) casos ocorreram na faixa etária de 11-15 anos, sendo 73,8% do sexo masculino. Nas regiões estudadas, houve predomínio da cor parda com 65,4% em Corte de Pedra, e 75% em Buriticupu. Vinte e seis (33,3%) crianças provenientes de Corte de Pedra eram lavradores, sendo o sexo masculino maioria (57,7%), existindo diferença estatística significante (c2 = 11,21 p = 0,05). Vinte e um (80,8%) casos da ocupação lavrador pertenciam a faixa etária de 11-15 anos. Em Buriticupu 37,5% das crianças eram estudantes, destes 30,2% foram lavradores, todos do sexo masculino (c2 = 32,3 p = 0,05). A maioria dos lavradores, 39 (44,3%) casos eram da faixa etária de 11-15 anos. Tanto em Buriticupu como Corte de Pedra houve predomínio da lesão única, 57,7% e 53,7% dos casos, respectivamente. A duração das lesões destacou-se no período de 1 a 3 meses, com 54 (69,2%) casos em Corte de Pedra e 83 (61%) em Buriticupu (c2 = 11,82 p = 0,05). Quanto a localização das lesões, observou-se que nas duas regiões estudadas os MMII foram predominantes com 58,9% em Corte de Pedra e 77,2% em Buriticupu (c2 = 27,9 p = 0,05), havendo maior ocorrência de lesão ulcerada nas duas regiões. IDRM foi positiva em 61 (78,2%) crianças provenientes de Corte de Pedra, não havendo diferença estatística significativa entre as faixas etárias e a positividade do teste (c2 = 0,0669 p = 0,05). A comparative study on children aged 0-15 years, with American tegumentary leishmaniasis (ATL), in the endemic regions of Buriticupu (MA) and Corte de Pedra (BA), whereby 214 cases were detected between 1982 and 1993, 78 (36.4%) of them originated from Corte de Pedra and 136 (63.6%) from Buriticupu. In Corte de Pedra, most cases were observed in patients aged between 0-5 years. Twenty nine (37.2%) cases; 62% of those were male. In the Buriticupu region, 88 (64.7%) cases occured in patients of 11-15 years of age, where in 73.8% consisted of male. In both researched regions, brunetts were predominant, with a ratio of 65.4% in Corte de Pedra and 75% in Buriticupu. Twenty six (33.3%) children in the village of Corte de Pedra were farmers, predominantly male (57.7%), generating statistical significance (c2 = 11.21). Twenty one (80.8%) farmers were aged 11-15 years. Thirty seven and a half per cent of the children from Buriticupu were students, however, 41 (30.2%) were farmers, representing 39 (44.3%) cases; all of them male. Both in Buriticupu and Corte de Pedra, the unique wound was predominant, corresponding to 57.7% and 53.7%, respectively. The wounding time stood out from one to three months, with 45 (69.2%) cases in Corte de Pedra and 73 (61%) in Buriticupu (c2 = 11.82). As to the wound locations, it has been observed that they were most constantly present on the lower limbs, with 77.2% in Corte de Pedra and 58.9% in Buriticupu (c2 = 27.9). The cutaneous case mostly found in Corte de Pedra was the ulcerous one (91%). IDRM was positive in 61 (78.2%) children originated from Corte de Pedra, wherein no statistical difference was detected between age ratio and positivity of the test (c2 = 0.0669).
Journal Article