Search

Copyright of Revista Española de Documentación Científica is the property of Consejo Superior de Investigaciones Cientificas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ciencias Psicológicas is the property of Universidad Catolica del Uruguay Damaso Antonio Larranaga and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Lonchophylla is a genus of currently 13 nectar-feeding bat species found throughout Central and South America, including Lonchophylla mordaxThomas, 1903, a species endemic to Brazil. Currently nationally categorized as 'Data Deficient', L. mordax has several knowledge gaps, including basic ones on its natural history. Here, we provide information on L. mordax's pattern of nocturnal activity, reproductive peak, sex and age ratios, its relationship with ectoparasites, as well as its distribution and taxonomy. Fieldwork was conducted in the Caatinga (seasonally dry tropical forest) in north-eastern Brazil between 2012 and 2015, during which we captured 110 L. mordax individuals. Our results showed that there was no significant difference in body mass or forearm length between males and females, with a sex ratio of 1:1. We obtained four adult individuals for every subadult captured. Lonchophylla mordax individuals were active throughout the entire sample night period but with a significant peak in activity in the first 30 min after sunset. The number of captures was strongly negatively correlated with minutes after sunset. Pregnant females were captured between July and February, and subadults were captured mainly in July and August, suggesting that the peak of births occurred at the end of the dry period and the beginning of the rainy period in the study area. Additionally, almost 70% of L. mordax individuals were parasitized by streblid flies, with no significant difference in parasite load observed across seasons, sexes, and ages. However, the individuals' body condition index was negatively correlated with the parasite load. Natural history research, such as that described here, helps to fill knowledge gaps on L. mordax, including providing data for the decision-making in conservation plans. Moreover, we add information for a species-rich genus with closely related, but poorly-studied, species globally listed as threatened or near-threatened. Lonchophylla es un género de 13 especies de murciélagos que se alimentan de néctar y se encuentran en toda América Central y del Sur, incluyendo Lonchophylla mordaxThomas, 1903, una especie endémica de Brasil. Actualmente categorizada a nivel nacional como 'Datos Insuficientes', L. mordax presenta varios vacíos de conocimiento, incluyendo información básica sobre su historia natural. Aquí, proporcionamos información sobre el patrón de actividad nocturna de L. mordax, su pico reproductivo, relaciones de género y edad, su relación con los ectoparásitos, así como su distribución y taxonomía. El trabajo de campo se llevó a cabo en el bioma Caatinga (bosque tropical estacionalmente seco) en el noreste de Brasil entre 2012 y 2015, durante el cual capturamos 110 individuos de L. mordax. Nuestros resultados mostraron que no había una diferencia significativa en la masa corporal o la longitud del antebrazo entre machos y hembras, con una proporción de sexos de 1:1. Se obtuvo cuatro individuos adultos por cada subadulto capturado. Los individuos de L. mordax estuvieron activos durante todo el período de muestreo nocturno, pero con un pico significativo de actividad en los primeros 30 min después de la puesta del sol. El número de capturas se correlacionó negativamente de manera significativa con los minutos después del atardecer. Las hembras preñadas fueron capturadas entre julio y febrero, y los subadultos fueron capturados principalmente en julio y agosto, lo que sugiere que el pico de nacimientos ocurrió al final del período seco y al comienzo del período lluvioso en el área de estudio. Además, casi el 70% de los individuos de L. mordax estaban parasitados por moscas Streblidae, sin diferencia significativa en la carga parasitaria observada entre estaciones, sexos y edades. Sin embargo, el índice de condición corporal de los individuos se correlacionó negativamente con la carga parasitaria. La investigación de la historia natural, como la descrita aquí, ayuda a llenar los vacíos de conocimiento sobre L. mordax, lo que incluye proporcionar datos para la toma de decisiones en los planes de conservación. Además, agregamos información para un género rico en especies con especies estrechamente relacionadas, pero poco estudiadas, globalmente listadas como amenazadas o casi amenazadas. [ABSTRACT FROM AUTHOR]

Copyright of Biota Neotropica (Edicao em Iingles) is the property of Biota Neotropica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Letras de Hoje is the property of EDIPUCRS - Editora Universitaria da PUCRS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Ciencias de la Salud is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Avances en PsicologÍa Latinoamericana is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This work evaluates the legacy left by the 2014 FIFA World-Cup held in Brazil, demonstrating the differences between the proposed and actual costs, construction projects and investments. This documentary study used statistical data provided by the Brazilian Government and the Fédération Internationale de Football Association (FIFA). The results were analysed through descriptive statistics. From the results, the magnitude of benefits was not fulfilled due to the failure to carry out all the projects and actions judged necessary and justified by the mega-event, even so, it brought some development for the country. [ABSTRACT FROM AUTHOR]

Copyright of Brazilian Journal of Biology is the property of Instituto Internacional de Ecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Scientia Medica is the property of EDIPUCRS - Editora Universitaria da PUCRS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The aim of this paper is to investigate the main practices of knowledge management (KM) employed by BRIC countries (Brazil, Russia, India, and China) from 2001 to 2014 in relation to their economic complexity (EC). The research is constructed by employing The Atlas of Economic Complexity database and gathering data related to the BRIC countries' EC ranking and the projected global growth throughout 2024. The country with the best outlook of ascension regarding EC is India, which has the largest number of KM practices. Russia, having the least amount of KM practices, has the worst EC projection. [ABSTRACT FROM AUTHOR]

Copyright of Pesquisa Veterinaria Brasileira is the property of Colegio Brasileiro de Patologia Animal - CBPA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Fossil fuels, e.g. gasoline and diesel oil, account for substantial share of the pollution that affects marine ecosystems. Environmental metabolomics is an emerging field that may help unravel the effect of these xenobiotics on seaweeds and provide methodologies for biomonitoring coastal ecosystems. In the present study, FTIR and multivariate analysis were used to discriminate metabolic profiles of Ulva lactuca after in vitro exposure to diesel oil and gasoline, in combinations of concentrations (0.001%, 0.01%, 0.1%, and 1.0% - v/v) and times of exposure (30 min, 1 h, 12 h, and 24 h). PCA and HCA performed on entire mid-infrared spectral window were able to discriminate diesel oil-exposed thalli from the gasoline-exposed ones. HCA performed on spectral window related to the protein absorbance (1700–1500 cm − 1 ) enabled the best discrimination between gasoline-exposed samples regarding the time of exposure, and between diesel oil-exposed samples according to the concentration. The results indicate that the combination of FTIR with multivariate analysis is a simple and efficient methodology for metabolic profiling with potential use for biomonitoring strategies. [ABSTRACT FROM AUTHOR]

Copyright of Avian Diseases is the property of American Association of Avian Pathologists, Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Salud Pública is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aim: To compare the use of etoricoxib and dexamethasone for postoperative pain prevention and control after mucogingival surgery. Methods: Fifty-eight patients with indication for mucogingival surgery took part in this randomized parallel double-blind clinical trial. They were divided into three groups (G): G1 -- placebo 1 h before surgery; G2 -- 8 mg dexamethasone 1 h before surgery; G3 -- 90 mg etoricoxib 1 h before surgery. Pain intensity was assessed in donor and recipient sites separately using the 101-point numerical rating scale NRS -- 101, every hour for the first 8 h after surgery and three times a day on the following 3 days. Results: there was a statistically significant difference in the postoperative pain intensity in the donor site between G1 and G3 after 1 h, 2 h, 3 h, 7 h, 8 h and on the second day -- in the evening after 32 h; between G1 and G2 after 2 h and 3 h, and between G2 and G3 only after the first hour. Pain intensity in the recipient site was statistically significant between G1 and G3 after 1 and 2 h (p<0.05). In addition, there was a lower ingestion of rescue medication in G2 and in G3 than in G1 (p=0.002). Conclusions: the use of a pre-emptive single dose of etoricoxib or dexamethasone may be considered an effective protocol for postoperative pain prevention and control after mucogingival surgery. [ABSTRACT FROM AUTHOR]

Copyright of RGO: Revista Gaúcha de Odontologia is the property of RGO: Revista Gaucha de Odontologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pesquisa Brasileira em Odontopediatria e Clinica Integrada is the property of Pesquisa Brasileira em Odontopediatria e Clinica Integrada Journal (Brazil) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective of this study was to analyze the effects of toothbrushing with desensitizing toothpastes on dentin permeability and dentinal tubule occlusion. Fifty rats provided two hundred incisor teeth divided into five groups: DW, brushed with distilled water (control); FT, brushed with fluoride toothpaste; SCT, brushed with strontium chloride toothpaste; PCT, brushed with potassium citrate toothpaste; and PNT, brushed with potassium nitrate toothpaste. Cavities were prepared to expose the dentinal tubules, and the incisor teeth were brushed using the experimental agents. After each treatment, Evans blue dye solution was applied to the teeth. Dentin permeability was analyzed using scanning electron microscopy and energy-dispersive X-rays (EDX). There were significant differences (p < 0.0001, ANOVA) among the groups regarding dentin permeability, number of dentinal tubules, diameter of dentinal tubules, and opened tubular area. In the SCT, PCT and PNT groups, opened and partially occluded tubules, deposits, and a few smear layers were observed. In the DW and FT groups, most of the dentinal tubules were open, with no deposits or smear layers on the dentin. EDX revealed peaks of calcium and phosphorus in all of the groups, as well as traces of strontium in the SCT group and of potassium in the PCT and PNT groups. Desensitizing toothpaste decreased dentin permeability, although it produced only partial dentin tubule occlusion. [ABSTRACT FROM AUTHOR]

Copyright of Avances en PsicologÍa Latinoamericana is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To compare in vitro shear bond strength (SBS) of different orthodontic adhesives in bonding and repeatedly rebonding metal brackets, and to evaluate the bond failure site with the adhesive remnant index (ARI). Methods: Specimens consisted of 90 extracted human first premolars, randomly divided into three groups (n=30). The adhesives Alpha Plast (AP), Concise™ (CO) and Transbond™ XT (TB) were used in each group. Three SBS tests were performed, i.e., one at T0 (initial) and the other two at T1 and T2 (first and second rebondings, respectively), observing a 24-hour interval. The tests were performed in a Shimadzu AG-I (10kN) SBS testing machine, at a speed of 0.5 mm/min. Results: SBS data were subjected to ANOVA, Tukey's test and Bonferroni test (p<0.05). For the ARI, the Kruskal Wallis test was performed, followed by the Dunn test. The results revealed that at To groups AP and CO showed SBS values that were near, but above TB values; and at T1 and T2, the highest SBS values were observed for the AP group, followed by the CO and TB groups. Conclusion: Statistically significant differences were found in SBS between groups AP, CO and TB during bonding and repeated rebondings of unused metal brackets, with group AP achieving the highest SBS value. Regarding ARI, adhesive AP exhibited bond failure at the enamel-adhesive interface, with a higher enamel fracture frequency. [ABSTRACT FROM AUTHOR]

Copyright of RGO: Revista Gaúcha de Odontologia is the property of RGO: Revista Gaucha de Odontologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aim: This in vitro study evaluated gap width formation and marginal microleakage in Class II composite restorations light-cured with three different light-curing units. Methods: Standardized cavities in the proximal surfaces of 36 human third molars were made with margins located below the cementoenamel junction. Cavities were restored with Filtek P60 (3M ESPE), inserted with a photocondenser tip and light-cured with three different methods: GI - Optilux401 (halogen); GII -- ColtoluxLED (LED) and GIII --UltraLumeLED5 (LED). After finishing the restorations, teeth were subjected to a thermal cycling regimen of 500 cycles (5°C ± 2°C and 55°C ± 2°C), totalizing 500 cycles. Thereafter, the teeth were sectioned in a buccolingual direction and in the center of the restorations. Half of the specimens (18) were used to evaluate marginal microleakage, by measuring of dye penetration in cross-sectioned specimens, and the other half was used to analyzed the gap formation width by SEM observations (1000X). Data were submitted to Kruskal-Wallis (α=0.05). Results: The mean values of gap width (µm) were: GI 3.28±3.34; GII 1.48±1.89 and GIII 3.11±3.45, and microleakage was not affected by the light-curing units. Conclusions: There were no differences between the light-curing methods in gap formation and marginal microleakage. [ABSTRACT FROM AUTHOR]

Background: Postoperative pain is an adverse effect of periodontal surgeries and may therefore be prevented or minimized. This study was conducted to evaluate the clinical efficacy of two selective cyclooxygenase-2 inhibitors, celecoxib and etoricoxib, on pain prevention after periodontal surgery. Methods: For this double-masked, parallel-group, placebo-controlled, and randomized clinical trial, 56 open-flap debridement surgeries were performed. The groups received three different protocols 1 hour before surgery: 1) 200 mg celecoxib (and another 200 mg 12 hours after the first dose); 2) 120 mg etoricoxib; or 3) placebo. Pain intensity and discomfort were assessed up to 2 days after surgery using the visual analog scale and the four-point verbal rating scale, respectively. Patients were instructed to take 750 mg acetaminophen as a rescue medication if necessary. Results: Pain intensity levels in the etoricoxib group were lower than in the placebo group at the 2-, 3-, 4-, 5-, 6-, and 7-hour periods after surgery (Kruskal-Wallis test; P <0.05). There was no statistically significant difference between celecoxib and etoricoxib. Discomfort in the celecoxib group was significantly lower than in the placebo group only at the 3-hour period (P= 0.03). Rescue medication intake was significantly less frequent in the etoricoxib group than in the placebo and celecoxib groups (analysis of variance; P = 0.009). Conclusion: it was concluded that a single etoricoxib dose is not superior to two split doses of celecoxib when used for pain prevention after open-flap debridement surgery. [ABSTRACT FROM AUTHOR]

Copyright of Revista Dental Press de Periodontia e Implantologia is the property of Dental Press International and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Dental Press de Periodontia e Implantologia is the property of Dental Press International and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Salud Pública is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Several anti-inflammatory drugs have been used to reduce pain and discomfort after periodontal surgeries. This study evaluates the efficacy of using etoricoxib and dexamethasone for pain prevention after open-flap debridement surgery. Methods: For this prospective, double-masked, crossover, placebo-controlled, randomized clinical trial, open-flap debridement surgeries were performed on 15 patients (eight males and seven females, age range 20 to 56 years: mean age ± SD: 40 ± 9.7 years) who presented with chronic periodontitis after nonsurgical periodontal therapy at three quadrants. Each patient underwent three surgical procedures at intervals of 30 days and received one of the following premedication protocols 1-hour before surgery: group 1 = placebo, group 2 = 8 mg dexamethasone, and group 3 = 120 mg etoricoxib. Rescue medication (750 mg acetaminophen) was given to each patient who was instructed to take it when necessary. Pain intensity and discomfort were evaluated by a 101-point numeric rate scale and a four-point verbal rate scale, respectively, hourly for the first 8 hours after surgery and three times a day on the following 3 days. Results: The results demonstrate that groups 2 and 3 present reduced postoperative pain-intensity levels compared to group 1. There were statistically significant differences at the 4, 5, 6, 7, and 8 hour-periods after surgery (Friedman test; P<0.05). Furthermore, rescue-medication intake was significantly lower for groups 2 and 3 than for group 1 (analysis of variance; P<0.02). Conclusion: The adoption of a preemptive medication protocol using etoricoxib or dexamethasone may be considered effective for pain and discomfort prevention after open-flap debridement surgeries. J Periodontal 2010;81:1153-1160. [ABSTRACT FROM AUTHOR]

This study was done to assess the influence of the topical application of two different desensitizing agents on dentin permeability and dentinal tubule occlusion. Twenty-one rats provided 84 teeth: 36 for the in vitro and 48 for the in vivo investigation. The following agents were tested: Group 1, 2% potassium nitrate plus 2% sodium fluoride gel; Group 2, 5% sodium fluoride varnish; Group 3, 3% hydroxyethylcellulose gel (control). Cervical cavities were prepared and EDTA was applied to expose the dentinal tubules. After each treatment, Evans blue dye was applied to the teeth. Dentin permeability, scanning electron microscope (SEM) sections, and energy dispersive X-ray (EDX) were analyzed. One-way ANOVA was used to compare the data. There were significant differences (P < 0.05) among groups for dentin permeability, number of tubules/mm2, tubule area and tubular diameter. Groups 1 and 2 (both in vitro and in vivo) showed open and partially occluded tubules. Group 3 had the most open tubules. EDX revealed similar composition for both experimental conditions. Within the limits of the study, 2% nitrate potassium plus 2% sodium fluoride gel and 5% fluoride varnish decreased the dentin permeability, resulting in partial tubular occlusion. [ABSTRACT FROM AUTHOR]