ABSTRACT
Arabica coffee is one of the most consumed beverages in the world. The chemical components present in raw Arabica coffee beans (RACB) are directly related to the cup quality of the beverage. Environmental and genetic factors influence the content and profile of these components. Then, this work aimed to evaluate different chemical parameters of RACB from 3 varieties planted in 3 different experimental farms located within the "Alta Mogiana" terroir harvested in 2021 and 2022 to identify a better variety for each farm to produce a high cup quality Arabica coffee. The harvest period had a strong influence on most of the studied parameters because atypical weather conditions occurred in the 2021 harvest. The RACB harvested in 2022 yielded better results and supposedly will produce a beverage of high cup quality. Samples harvested in this period presented mainly average moisture levels closer to optimum (11.02 against 8.56 % in 2021); low total titratable acidity (98.00 against 169.75 mL 0.1 M NaOH/100 g in 2021); high amounts of free amino acids (0.96 against 0.93 g GAE/100 g in 2021), low amounts of CGA (4.27 against 4.85 g/100 g in 2021) and caffeine (1.08 against 1.76 g/100 g in 2021) and high amounts of trigonelline (1.12 against 0.96 g/100 g in 2021). The Rome Sudan variety had the best combination of chemical results, mainly when cultivated in Farm 2 in 2022, presenting high amounts of protein content (15.24 %) and free amino acids (0.96 g GAE/100 g), low total titratable acidity (98.3 mL 0.1 M NaOH/100 g), low amounts of CGA (4.55 g/100 g) and caffeine (1.29 g/100 g) and high amounts of trigonelline (1.11 g/100 g). The analysis of chemical compounds could predict the best farm to cultivate each variety studied and was a guide to foresee a higher cup quality of RACB beverages.
Subject(s)
Coffea , Coffee , Seeds , Coffea/chemistry , Seeds/chemistry , Coffee/chemistry , Caffeine/analysis , Brazil , Alkaloids/analysis , Amino Acids/analysisABSTRACT
BACKGROUND/PURPOSE: Anteriorly convex sternum in pectus excavatum, also known as banana sternum (BS), influences decision-making during repair and, especially, the need to cross bars. However, the definition of BS remains subjective. Thus, we aim to propose the retrosternal angle (RSA) as a diagnostic measure for the discrimination of BS. MATERIAL AND METHODS: Retrospective analysis of a cohort of patients who underwent a minimally invasive repair of pectus excavatum (MIRPE) between October 2016 and October 2023 at our Pectus Clinic. Five expert thoracic surgeons individually reviewed their medical photographs and chest CT scans assigning patients to BS or non-BS groups based on consensus (≥4 surgeons). RSA measurements were obtained by an independent thoracic surgeon. RESULTS: Among 283 cases analyzed, 50 (18%) were classified as BS and 233 (82%) as non-BS. No significant differences were found between groups in age (p = 0.62), Haller index (p = 0.11), or Correction index (p = 0.58). However, RSA was significantly lower in the BS group (141.2 ± 8.4° vs. 154.5 ± 10.3°, p < 0.0001). Receiver operating characteristic curve analysis revealed RSA as a reliable predictor of BS (AUC 0.85, p < 0.0001), with a threshold of 148.5° demonstrating 80% sensitivity and 77% specificity. Regarding potential clinical implications, 26/50 (52%) of patients defined as BS underwent bar crossing, compared with 45/232 (19%) of those not considered a BS (p < 0.0001). CONCLUSION: This study proposes an objective metric, the Retrosternal Angle, to assess BS in chest CT scans, with a threshold of 148.5° showing high sensitivity and specificity. External validation of this angle and threshold is warranted in future investigations. TYPE OF STUDY: Retrospective comparative study. LEVEL OF EVIDENCE: III.
ABSTRACT
For the first time, the dual effect of coffee cherry sanitization methods to control the microbial load in processing and the influence of fermentation time on coffee quality parameters was evaluated. Two assays were carried out by wet processing: I) Sanitization of the coffee cherry (ST1: Unclassified processed cherries; ST2: Classified and sanitized cherries with drinking water; ST3: Classified and sanitized cherries with a chemical agents and II) Fermentation times (FT1: 12 h; FT2: 24 h; FT3: 48 h; FT4: 72 h and FT5: 96 h). pH, temperature, and dissolved oxygen were monitored during fermentation. Counts of Lactic Acid Bacteria - LAB, mesophiles, and yeasts were carried out on the coffee mass before and after fermentation. Caffeine and chlorogenic acid contents were determined by HPLC-DAD and the sensory profile by methodology for specialty coffees (SCA). The main findings showed that: sanitization with Timsen® did not significantly influence the evolution of pH during fermentation (p > 0.05), but it can reduce to a small extent the action of LAB at the end of the process. It was observed that the temperature of the coffee mass tends to balance with the ambient temperature, with significant effects (p < 0.05) of sanitization (ST2 and ST3) on the stability of this variable during fermentation. Timsen® as a disinfectant affected microbial populations and improved the sensory profile in the cup. In prolonged coffee fermentations (FT3, FT4 and FT5), the pH of the coffee mass tended to stabilize after 36 h, regardless of the process time. Likewise, a correlation was evident between a higher microbial load correlated with better sensory profiles in FT4 and FT5. Neither the sanitization process nor the fermentation time significantly affected the caffeine and chlorogenic acid contents of the coffee, both in its green and roasted states. Consequently, the sanitization of cherry coffee with Timsen® and prolonged fermentation times favor the safety and coffee final quality in the cup.
ABSTRACT
Research into microbial interactions during coffee processing is essential for developing new methods that adapt to climate change and improve flavor, thus enhancing the resilience and quality of global coffee production. This study aimed to investigate how microbial communities interact and contribute to flavor development in coffee processing within humid subtropical climates. Employing Illumina sequencing for microbial dynamics analysis, and high-performance liquid chromatography (HPLC) integrated with gas chromatography-mass spectrometry (GC-MS) for metabolite assessment, the study revealed intricate microbial diversity and associated metabolic activities. Throughout the fermentation process, dominant microbial species included Enterobacter, Erwinia, Kluyvera, and Pantoea from the prokaryotic group, and Fusarium, Cladosporium, Kurtzmaniella, Leptosphaerulina, Neonectria, and Penicillium from the eukaryotic group. The key metabolites identified were ethanol, and lactic, acetic, and citric acids. Notably, the bacterial community plays a crucial role in flavor development by utilizing metabolic versatility to produce esters and alcohols, while plant-derived metabolites such as caffeine and linalool remain stable throughout the fermentation process. The undirected network analysis revealed 321 interactions among microbial species and key substances during the fermentation process, with Enterobacter, Kluyvera, and Serratia showing strong connections with sugar and various volatile compounds, such as hexanal, benzaldehyde, 3-methylbenzaldehyde, 2-butenal, and 4-heptenal. These interactions, including inhibitory effects by Fusarium and Cladosporium, suggest microbial adaptability to subtropical conditions, potentially influencing fermentation and coffee quality. The sensory analysis showed that the final beverage obtained a score of 80.83 ± 0.39, being classified as a specialty coffee by the Specialty Coffee Association (SCA) metrics. Nonetheless, further enhancements in acidity, body, and aftertaste could lead to a more balanced flavor profile. The findings of this research hold substantial implications for the coffee industry in humid subtropical regions, offering potential strategies to enhance flavor quality and consistency through controlled fermentation practices. Furthermore, this study contributes to the broader understanding of how microbial ecology interplays with environmental factors to influence food and beverage fermentation, a topic of growing interest in the context of climate change and sustainable agriculture.
ABSTRACT
Along with the United States Pharmacopeia (USP) chapters 232 and 233 regarding elemental impurities in pharmaceutical products, new challenges have been imposed in terms of sample preparation procedures prior to inductively coupled plasma mass spectrometry analysis, considering the matrix complexities. As so, a new microextraction procedure assisted by ultrasound using a cup-horn sonoreactor, minimal reactants, and sample was proposed and validated according to USP. The procedure was optimized with samples of milled tablets and 3 different acid mixtures (HNO3, 3HNO3:1HCl, and 9HNO3:1HF) and it was compared with microwave-assisted acid digestion. In the validation step, recoveries ranging from 85 to 120 % and RSD below 10 % were obtained for 22 analytes (except Ag and Pt) with satisfactory linearity and good sensitivity. The method was then applied for 37 samples of antidepressants, which presented trace levels of As, Ba, Cd, Co, Cr, Cu, Ni, Pb, Pd, Sn, and V.
Subject(s)
Drug Contamination , Trace Elements , Mass Spectrometry/methods , Drug Contamination/prevention & control , Spectrum Analysis , Tablets , Microwaves , Trace Elements/analysisABSTRACT
Resumen: Introducción: la cirugía de revisión protésica de cadera constituye una indicación quirúrgica que se encuentra en crecimiento en los últimos años. La artroplastía total de cadera de revisión (ATCr) se trata de un reto quirúrgico destacado debido a la dificultad técnica de la propia cirugía. Entre las complicaciones de la cirugía de revisión des-tacan las luxaciones, el aflojamiento aséptico y la infección. Objetivo: comparar los resultados clínico-radiológicos, así como la incidencia de complicaciones, de dos muestras independientes de pacientes intervenidos de artroplastía total de cadera de revisión (ATCr) con defectos acetabulares leves-moderados utilizando implantes de doble movilidad respecto a implantes monopolares. Material y métodos: estudio retrospectivo comparativo de dos cohortes de 30 pacientes intervenidos de cirugía de revisión acetabular mediante cabezas monopolares de 36 mm o doble movilidad, respectivamente. Todos los pacientes presentaban defectos acetabulares tipo I o II de Paprosky. Se evaluaron los resultados con las escalas EVA, WOMAC y Harry hip score (HHS) pre y postoperatorios en ambas cohortes. Asimismo, se analizaron la incidencia de complicaciones postoperatorias y la tasa de supervivencia entre ambos grupos. Resultados: el seguimiento medio fue de 5.8 años (1-10.3 años). La diferencia entre los resultados pre y postoperatorios en cada cohorte fue significativa para la escala EVA, WOMAC y HHS. Las diferencias obtenidas en dichas escalas entre los distintos grupos de estudio no hallaron diferencias significativas. La incidencia de complicaciones postoperatorias entre ambas cohortes fue similar, sin encontrar diferencias significativas. Conclusiones: consideramos que la doble movilidad no aporta superioridad en cuanto a resultados clínico-funcionales e incidencia de complicaciones postoperatorias respecto a los montajes monopolares en cirugía de revisión acetabular con defectos leves-moderados.
Abstract: Introduction: hip revision arthroplasty surgery is a surgical procedure that has been growing in recent years. Revision total hip arthroplasty (THA) is a notable surgical challenge due to the technical difficulty of the surgery itself. Complications of revision surgery includes dislocation, aseptic loosening, and infection. Objective: to compare the clinical-radiological results, as well as the incidence of complications, of two independent samples of patients who underwent revision total hip arthroplasty (rTHA) with mild-moderate acetabular defects using dual mobility implants compared to monopolar implants. Material and methods: retrospective comparative study of two cohorts of 30 patients who underwent acetabular revision surgery using large 36 mm monopolar heads or dual mobility respectively. All patients had Paprosky type I or II acetabular defects. The results on the VAS scale, WOMAC, and Harry hip score (HHS) were evaluated pre and postoperatively in both cohorts. Likewise, the incidence of postoperative complications and the survival rate between both groups were analyzed. Results: mean follow-up was 5.8 years (1-10.3 years). The difference between the pre and postoperative results in each cohort was significant for the VAS, WOMAC and HHS scale. The differences obtained in these scales between the different study groups did not find significant differences. The incidence of postoperative complications between both cohorts was similar, without finding significant differences. Conclusions: we consider that dual mobility does not provide superiority in terms of clinical-functional results and incidence of postoperative complications with respect to monopolar assemblies in acetabular revision surgery with mild-moderate defects.
ABSTRACT
O presente estudo busca analisar o papel dos eventos esportivos promovidos pelas Associações Atléticas Acadêmicas no impulsionamento do turismo de esportes, especificamente o caso da Copa Inter Atléticas (CIA). A pesquisa foi realizada por meio de levantamento bibliográfico e a aplicação de questionários com amostra não probabilística, visando coletar informações sobre as características, percepções e atitudes de jovens universitários. Identificou-se que às Atléticas se tornaram as principais responsáveis pela disseminação de práticas de sociabilidade e da cultura do lazer universitário no Brasil. Ao analisar a CIA, foi possível verificar que o turismo esportivo possui a capacidade de gerar renovados usos sociais dos espaços urbanos e que o turismo de eventos esportivos pode ser utilizado como um instrumento de apoio ao desenvolvimento de uma região, além de influenciar positivamente a imagem de um destino turístico.
The present study aims to analyze the role of sporting events promoted by Academic Athletic Associations in boosting sports tourism, specifically the case of the Inter Atléticas Cup (CIA). The research was carried out through a bibliographical survey and the application of questionnaires with a non-probabilistic sample, aiming to collect information about the characteristics, perceptions and attitudes of university students. It was identified that Atéticas became the main responsible for the dissemination of sociability practices and university leisure culture in Brazil. By analyzing the CIA, it was possible to verify that sports tourism has the capacity to generate renewed social uses of urban spaces and that sports events tourism can be used as an instrument to support the development of a region, in addition to positively influencing the image of a tourist destination.
ABSTRACT
La preparación psicológica para las competencias es un proceso que potencia las capacidades y cualidades del deportista durante la preparación para alcanzar el estado óptimo de predisposición psíquica. Son escasas las investigaciones que ofrecen evidencias empíricas de la relación existente entre el estado de predisposición psíquica y el rendimiento competitivo de atletas de pruebas combinadas. El objetivo de este trabajo fue determinar cómo se relacionan el estado de predisposición psicológica y el rendimiento competitivo de los atletas cubanos de pruebas combinadas. La investigación fue no experimental y transversal. La muestra la integraron ocho atletas de pruebas combinadas de la selección nacional cubana de atletismo. Se emplearon el Cuestionario de Predisposición Psicológica para la Competencia y la Escala de rendimiento en la competencia de pruebas combinadas. La claridad de objetivos correlacionó de manera positiva y directa con el rendimiento competitivo en las carreras con vallas (,793 sig. = ,019). La significación de la competencia percibida por los atletas correlacionó de manera positiva y directa con las carreras con vallas y el salto de altura (,826 sig. = ,012 y ,717 sig. = ,045). A medida que aumentó la claridad de objetivos en los atletas estudiados también lo hizo el rendimiento percibido por sus entrenadores en las carreras con vallas que realizaron en la Copa Cuba 2020. A medida que fue mayor la significación de la competencia, también lo fue el rendimiento en carreras con vallas y salto de altura.
SÍNTESE A preparação psicológica para as competições é um processo que aumenta as habilidades e qualidades do atleta durante a preparação para alcançar o estado ideal de predisposição psíquica. Há poucas pesquisas que ofereçam evidências empíricas da relação entre o estado de predisposição psicológica e o desempenho competitivo dos atletas em eventos combinados. O objetivo deste trabalho foi determinar como o estado de predisposição psicológica e o desempenho competitivo dos atletas cubanos em eventos combinados estão relacionados. A pesquisa foi não-experimental e transversal. A amostra consistiu de oito atletas de eventos combinados da equipe nacional de atletismo de Cuba. Foram utilizados o Questionário de Predisposição Psicológica para Competição e a Escala de Desempenho em Competição de Julgamentos Combinados. Clareza de propósito correlacionada positivamente e diretamente com o desempenho competitivo em obstáculos (.793 sig. = .019). A percepção do significado da competência dos atletas se correlacionou positiva e diretamente com obstáculos e saltos em altura (.826 sig. = .012 e .717 sig. = .045). medida que a clareza das metas aumentava nos atletas estudados, também aumentava o desempenho percebido por seus treinadores nas corridas de obstáculos que realizaram na Copa Cuba 2020. medida que a importância da concorrência aumentava, aumentava também o desempenho em obstáculos e saltos altos.
Psychological preparation for competitions is a process that enhances the capacities and qualities of the athlete during the preparation to reach the optimal state of mental predisposition. There are few researches that offer empirical evidence of the relationship between the state of mental predisposition and the competitive performance of athletes in combined events. The objective of this work was to determine how the state of psychological predisposition and the competitive performance of Cuban athletes in combined events are related. The research was non-experimental and cross-sectional. The sample was made up of eight athletes from the combined events of the Cuban national athletics team. The Questionnaire of Psychological Predisposition for Competition and the Performance Scale in the competition of combined tests were used. Goal clarity was positively and directly correlated with competitive performance in hurdles (.793 sig. = .019). The significance of the athletes' perceived competition was positively and directly correlated with hurdles and high jump (.826 sig. = .012 and .717 sig. = .045). As the clarity of objectives increased in the athletes studied, so did the performance perceived by their coaches in the hurdles races they carried out in the 2020 Cuba Cup. As the significance of the competition was greater, so was the performance in hurdle races and high jump.
ABSTRACT
As both coffee quality and sustainability become increasingly important, there is growing interest in understanding how ecological quality affects coffee quality. Here we analyze, for the first time, the state of evidence that ecological quality, in terms of biodiversity and ecosystem functions, impacts the quality of Coffea arabica and C. canephora, based on 78 studies. The following ecosystem functions were included: pollination; weed, disease, and pest control; water and soil fertility regulation. Biodiversity was described by the presence, percentage, and diversity of shade trees. Coffee quality was described by the green bean physical characteristics, biochemical compounds, and organoleptic characteristics. The presence and diversity of shade trees positively impacted bean size and weight and reduced the percentage of rejected beans, but these observations were not consistent over different altitudes. In fact, little is known about the diversity of shade trees and their influence on biochemical compounds. All biochemical compounds varied with the presence of shade, percentage of shade, and elevation. Coffee beans from more diverse tree shade plantations obtained higher scores for final total organoleptic quality than simplified tree shade and unshaded plantations. Decreasing ecological quality diminished ecosystem functions such as pollination, which in turn negatively affected bean quality. Shade affected pests and diseases in different ways, but weeds were reduced. High soil quality positively affected coffee quality. Shade improved the water use efficiency, such that coffee plants were not water stressed and coffee quality was improved. While knowledge on the influence of shade trees on overall coffee quality remains scarce, there is evidence that agroecosystem simplification is negatively correlated with coffee quality. Given global concerns about biodiversity and habitat loss, we recommend that the overall definition of coffee quality include measures of ecological quality, although these aspects are not always detectable in certain coffee quality characteristics or the final cup.
ABSTRACT
The present study had the objective to evaluate the effect of blends of KCl and K2SO4 fertilizers and their influence on the yield and the nutritional state of coffee plants, as well as on the chemical composition and quality of the coffee beverage. The experimental design was in randomized blocks with four repetitions and six treatments (T1: 100% KCl; T2: 75% KCl + 25% K2SO4; T3: 50% KCl + 50% K2SO4; T4: 25% KCl + 75% K2SO4; T5: 100% K2SO4; and a control, without application of K). The following analyses were performed: K and Cl content in the leaves and the soil, stocks of Cl in soil, yield, removal of K and Cl with the beans, cup quality of the beverage, polyphenol oxidase activity (PPO), electric conductivity (EC), potassium leaching (KL), the content of phenolic compounds, the content of total sugars (TS), and total titratable acidity (TTA). The stocks of Cl in the soil decreased as the proportion of KCl in the fertilizer was reduced. The fertilization with KCl reduces the cup quality and the activity of the polyphenol oxidase, probably due to the ion Cl. The increase in the application of Cl directly relates to the increase in potassium leaching, electric conductivity, and titratable acidity. Indirectly, these variables indicate damages to the cells by the use of Cl in the fertilizer. The activity of the polyphenol oxidase enzyme and the cup quality indicate that the ion Cl- reduces the quality of the coffee beverage. K content in the leaves was not influenced by the application of blends of K fertilizer while Cl content increased linearly with KCl applied. The application of KCl and K2SO4 blends influenced coffee yield and the optimum proportion was 25% of KCl and 75% of K2SO4. The highest score in the cup quality test was observed with 100% K2SO4.
ABSTRACT
This study reviews newly discovered insect peptide point mutations as new possible cancer research targets. To interpret newly discovered peptide point mutations in insects as new possible cancer research targets, we focused on the numerous peptide changes found in the 'CSP' family on the sex pheromone gland of the female silkworm moth Bombyx mori. We predict that the Bombyx peptide modifications will have a significant effect on cancer CUP (cancers of unknown primary) therapy and that bacterial peptide editing techniques, specifically Lactobacillus combined to CRISPR, will be used to regulate ribosomes and treat cancer in humans.
Subject(s)
Bombyx , Neoplasms , Animals , Female , Humans , Bombyx/genetics , Peptides , Ribosomes/genetics , Neoplasms/genetics , Neoplasms/therapyABSTRACT
The aim was to assess and report the effects of menstrual cup on pelvic floor muscles (PFM) function and tone, as well as check the acceptability after a period of three menstrual cycles in healthy young women. The data collected in assessments and reassessments included the International Consultation on Incontinence Questionnaire - Vaginal Symptoms (ICIQ-VS) questionnaire, evaluation of PFM function through PERFECT Scheme, PFM muscle tone, and PFM manometry (Peritron 9300®). A diary regarding the overall colletor acceptability and satisfaction was collected. Ten healthy young women completed the study. There was an improvement in the mean values of maximal voluntary contraction (MVC) (p = 0.032), a decrease in the vaginal resting pressure (VRP) (p = 0.05), and an increase in the number of repetitions of sustained muscle contractions (p = 0.042). Seven women reported some discomfort while using the vaginal cup only in the first cycle while three revealed discomfort during the whole experiment. This study provides preliminary case-based evidence that the use of the vaginal cup for a period of three menstrual cycles changes the VRP, MVC, and PFM tone, as well as improves the repetitions of PFM assessed by digital palpation. Moreover, the women reported the use of vaginal cup as a positive experience.
Subject(s)
Muscle Strength , Pelvic Floor , Female , Humans , Pelvic Floor/physiology , Muscle Strength/physiology , Menstrual Hygiene Products , Muscle Contraction/physiology , ManometryABSTRACT
OBJECTIVE: To identify the determinants of menstrual cup use among medical students in Brazil. METHODS: A cross-sectional study with an online survey regularly applied to matriculate women from Medical School in January 2021. RESULTS: Of 277 women, 164 participated. The mean age was 22.26 ± 3.21 years. In all 136 women preferred external pads, 60 internal pads, 28 menstrual cups, and 11 did not use. Using a 1-10 scale, price, efficacy, sustainability, practice, vaginal health status, hygiene, and importance of internal genital integrity were investigated. Thirty-seven (22.56%) women related the use of menstrual cups in the last year. Using any method to reduce menstruation had an adjusted odds ratio (aOR) of 0.310 (95% confidence interval [CI] 0.122-0.787). Concern about the environmental biodegradation had an aOR of 6.369 (95% CI 1.372-29.562); concern about intimal health had an aOR 1.996 (95% CI 1.183-3.368); and concern about internal genital integrity had an aOR of 0.824 (95% CI 0.682-0.995) for menstrual cup use. CONCLUSION: The significant independent factors for the use or adherence to menstrual cups were: women using a method to reduce their menstrual flow; concerning biodegradation; concerning vaginal health; with no concerns about manipulating their genitalia. The menstrual cup was used by 22.56% of a medical school in Brazil among undergraduate women.
Subject(s)
Menstrual Hygiene Products , Students, Medical , Humans , Female , Young Adult , Adult , Male , Cross-Sectional Studies , Menstruation , Surveys and Questionnaires , Health Knowledge, Attitudes, PracticeABSTRACT
INTRODUCTION: hip revision arthroplasty surgery is a surgical procedure that has been growing in recent years. Revision total hip arthroplasty (THA) is a notable surgical challenge due to the technical difficulty of the surgery itself. Complications of revision surgery includes dislocation, aseptic loosening, and infection. OBJECTIVE: to compare the clinical-radiological results, as well as the incidence of complications, of two independent samples of patients who underwent revision total hip arthroplasty (rTHA) with mild-moderate acetabular defects using dual mobility implants compared to monopolar implants. MATERIAL AND METHODS: retrospective comparative study of two cohorts of 30 patients who underwent acetabular revision surgery using large 36 mm monopolar heads or dual mobility respectively. All patients had Paprosky type I or II acetabular defects. The results on the VAS scale, WOMAC, and Harry hip score (HHS) were evaluated pre and postoperatively in both cohorts. Likewise, the incidence of postoperative complications and the survival rate between both groups were analyzed. RESULTS: mean follow-up was 5.8 years (1-10.3 years). The difference between the pre and postoperative results in each cohort was significant for the VAS, WOMAC and HHS scale. The differences obtained in these scales between the different study groups did not find significant differences. The incidence of postoperative complications between both cohorts was similar, without finding significant differences. CONCLUSIONS: we consider that dual mobility does not provide superiority in terms of clinical-functional results and incidence of postoperative complications with respect to monopolar assemblies in acetabular revision surgery with mild-moderate defects.
INTRODUCCIÓN: la cirugía de revisión protésica de cadera constituye una indicación quirúrgica que se encuentra en crecimiento en los últimos años. La artroplastía total de cadera de revisión (ATCr) se trata de un reto quirúrgico destacado debido a la dificultad técnica de la propia cirugía. Entre las complicaciones de la cirugía de revisión destacan las luxaciones, el aflojamiento aséptico y la infección. OBJETIVO: comparar los resultados clínico-radiológicos, así como la incidencia de complicaciones, de dos muestras independientes de pacientes intervenidos de artroplastía total de cadera de revisión (ATCr) con defectos acetabulares leves-moderados utilizando implantes de doble movilidad respecto a implantes monopolares. MATERIAL Y MÉTODOS: estudio retrospectivo comparativo de dos cohortes de 30 pacientes intervenidos de cirugía de revisión acetabular mediante cabezas monopolares de 36 mm o doble movilidad, respectivamente. Todos los pacientes presentaban defectos acetabulares tipo I o II de Paprosky. Se evaluaron los resultados con las escalas EVA, WOMAC y Harry hip score (HHS) pre y postoperatorios en ambas cohortes. Asimismo, se analizaron la incidencia de complicaciones postoperatorias y la tasa de supervivencia entre ambos grupos. RESULTADOS: el seguimiento medio fue de 5.8 años (1-10.3 años). La diferencia entre los resultados pre y postoperatorios en cada cohorte fue significativa para la escala EVA, WOMAC y HHS. Las diferencias obtenidas en dichas escalas entre los distintos grupos de estudio no hallaron diferencias significativas. La incidencia de complicaciones postoperatorias entre ambas cohortes fue similar, sin encontrar diferencias significativas. CONCLUSIONES: consideramos que la doble movilidad no aporta superioridad en cuanto a resultados clínico-funcionales e incidencia de complicaciones postoperatorias respecto a los montajes monopolares en cirugía de revisión acetabular con defectos leves-moderados.
Subject(s)
Arthroplasty, Replacement, Hip , Hip Prosthesis , Humans , Arthroplasty, Replacement, Hip/adverse effects , Hip Prosthesis/adverse effects , Retrospective Studies , Prosthesis Failure , Prosthesis Design , Acetabulum/surgery , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Postoperative Complications/surgery , Reoperation/adverse effects , Reoperation/methods , Follow-Up StudiesABSTRACT
Rust is the main disease affecting Coffea arabica, the most economically important coffee species. The objective of this study was to analyze C. arabicacultivars with different levels of rust resistance, including bean size, raw bean appearance, finalsensory scores (FSS), and aromaand taste nuances of the coffee cup. The experiment was designed in randomized blocks (RBD) with three replications and 20 treatments (cultivars), totaling 60 experimental plots. The rust-susceptible cultivars IPR 100, Rubi MG 1192, and Topázio MG 1190 were compared with 17 rust-resistant cultivars.Cultivars IPR 103, MGS Aranãs, and SaíraII presented the highest percentages of high sieves, highest scores of raw bean appearance, and low percentages of mocha-type beans. All cultivars had FSS above 82 and were classified as specialty coffees. The cultivars with the highest FSS (Arara and Catiguá MG2) showed a greater diversity of coffee cup aroma and flavor nuances. Rust-resistant Arabica coffee cultivars are promising for the physical quality of beans and have potential for the specialty coffee market.
ABSTRACT
This work characterizes two alternative materials to substitute the most expensive microbial fuel cells (MFCs) components: proton exchange membrane (PEM) and cathode. Crude glycerol biodegradation was studied in MFCs using a clay cup as a PEM and activated carbon and camphor carbon mixture (CAC) as a cathode. The cathode performance was compared with Platinum on carbon cloth. Two clay cup single-chamber MFCs were operated with each cathode and fed with 2000 mg/L of crude glycerol. Electrochemical properties were characterized by linear sweep voltammetry, electrochemical impedance spectroscopy, and chronoamperometry. Biodegradation efficiencies were estimated with the chemical oxygen demand (COD) removal percentage. MFCs with CAC showed a maximum power density of 100 mW/m2. This result was a 43.47% power response regarding MFCs with Platinum. COD removal efficiencies of 94% were achieved in 37 days for both cells. The Columbic efficiencies were 24.04% and 22.78% for the MFCs with Platinum and CAC. The economic analysis showed a cost of USD 9.97 for MFCs with CAC. This cost is five times lower than when using Platinum. MFCs utilizing clay cups and CAC showed an acceptable performance for the bioenergy production from crude glycerol biodegradation above all economic advantage in the cell cost.
Subject(s)
Bioelectric Energy Sources , Protons , Glycerol , Charcoal , Clay , Camphor , Platinum , Electricity , ElectrodesABSTRACT
Esta investigação teve como objetivo prospectar o movimento de construção do estádio Independência, localizado em Belo Horizonte, MG. Neste sentido, investimos metodologicamente em uma análise de periódicos locais que circularam na cidade entre os anos de edificação deste espaço (1948/1950), disponibilizados em acervos físicos e digitalizados. Como destaque, dois personagens se sobressaem: o presidente do clube Sete de Setembro e o prefeito belorizontino. Ambos se configuram como peças determinantes para a consecução do projeto, assumindo o jogo político nas diversas instâncias (CBD, FIFA, clubes esportivos e agentes políticos institucionais). Contrariamente ao que se consolidou no discurso do imaginário social (e até mesmo no campo acadêmico), constatamos que o estádio Independência não teve originalmente a sua concepção voltada para a ocorrência de sediar jogos da Copa do Mundo de 1950, mas sim como um investimento do clube de futebol Sete de Setembro, que almejava ter uma imponente praça esportiva na cidade, para rivalizar com seus principais oponentes.
This manuscript highlights the construction of Independência stadium, in Belo Horizonte, MG. In this sense, we analyses methodologically local newspapers that circulated in the city between the years of construction of this stadium (1948/1950), available in physical and digitized collections. As key figures in this process, two characters are crucial: the president of the Sete de Setembro Football Club and the mayor of Belo Horizonte. We argue that both were essential characters for the achievement for the project as they played strategical political deal in different scenarios (CBD, FIFA, sports clubs and also with institutional political agents). Contrary to popular belief (and even in the academic field), this paper reveals that the Independência stadium was not originally designed for hosting the 1950 World Cup. It was rather an investment made by the Sete de Setembro Football Club, which aimed to have an imposing sports complex in the city, and so compete against its main opponents.
Esta investigación tuvo como objetivo analizar el movimiento de construcción del estadio Independência, ubicado en Belo Horizonte, MG. En este sentido, fue realizada metodológicamente un análisis de las publicaciones periódicas locales que circularon por la ciudad entre los años de construcción de este espacio (1948/1950), disponible en colecciones físicas y digitalizadas. Destacamos dos personajes: el presidente del club Sete de Setembro y el alcalde de Belo Horizonte. Ambos se configuran como piezas cruciales para la consecución del proyecto, asumiendo el juego político en distintas instancias (CBD, FIFA, clubes deportivos y agentes políticos institucionales). Al contrario de lo que se ha consolidado en el discurso del imaginario social (e incluso en el ámbito académico), concluimos que el estadio Independência no fue diseñado originalmente para albergar partidos del Mundial de 1950, sino como una inversión del club Sete de Setembro, que pretendía tener una imponente plaza deportiva en la ciudad, para disputar con sus principales rivales.
ABSTRACT
Metallothionein-like protein concentrations (MT) and three functionally defined fractions of cholinesterase activity (ChE) were quantified in gill and digestive gland homogenates of tropical cup oysters from 5 nearshore locations in the Colombian Caribbean and correlated with sediment and tissue metal (9 metals) and pesticide (22 organophosphates, OPs, and 20 organochlorines-OCPs), as well as water physical-chemical parameters (salinity, pH, temperature, and dissolved oxygen). Tissue and sediment pesticide concentrations were below detection limits in all samples, whereas sediment and tissue metal concentrations exceeded environmental thresholds at several locations. Tissue MT and ChE biomarkers varied by a factor of 5-6 between locations. Inhibition of cholinesterase activity was negligible for all 5 sites, despite spatial-temporal variation in ChE activity, consistent with below-detection OP concentrations. Tissue MT and ChE biomarkers correlated with tissue and metal sediment concentrations, yet, statistically significant covariance between biomarkers and water chemistry parameters was also observed, indicating that both, metal concentrations and physical-chemical variables, are likely to be responsible for generating the observed spatial-temporal variations in biomarker patterns.
Subject(s)
Ostreidae , Pesticides , Water Pollutants, Chemical , Animals , Biomarkers/metabolism , Cholinesterases , Colombia , Environmental Monitoring , Metallothionein/metabolism , Metals , Pesticides/analysis , Water , Water Pollutants, Chemical/analysisABSTRACT
Objetivo: Este trabajo desarrolla una lectura del Campeonato Mundialde Fútbol 1978. Universo do futebol deRoberto DaMatta oficia como su guía para desandar um conjunto de problemas. Método:A partir de una relectura de testimonios conservados en distintos formatos (prensa periódica, documentos oficiales, registros audiovisuales e imágenes) se reconstruye la organización y los rituales que delimitaron al Campeonato Mundialde Fútbol Mundial 1978. Resultados y discussión:El artículo muestra cómo la preparación del gobierno militar trató de borrar la herencia popular del Campeonato Mundial de Fútbol 1978 puesta en juego por los gobiernos peronistas y cómo desplegó a través de la ceremonia inaugural su imaginación política y su proyecto de gobierno para la sociedad Argentina. Conclusión:Al abordar los festejos de la victoria argentina en la final, analizamos los desajustes evidenciados por ese proyecto a partir de unas celebraciones capaces de suspender, al menos momentáneamente, el sentido y las jerarquías imaginadas por las autoridades militares. La propuesta de Roberto DaMatta acerca de la relación entre deporte y sociedad y su enfoque sobre los rituales y las liminaridades continúa siendo una poderosa inspiración para leer un evento extraordinario como el Campeonato Mundial de Fútbol Argentina 78.
Objetivo: Este trabalho desenvolve uma leitura do Campeonato do Mundo de 78. O Universo do futebol de Roberto DaMatta serve como um guia para retraçar um conjunto de problemas. Método:A partir de uma releitura de testemunhos preservados em diferentes formatos (imprensa periódica, documentos oficiais, registos audiovisuais e imagens) reconstrói a organização e os rituais que delimitaram o Campeonato do Mundo de 78. Resultados e discussão:O artigo mostra como a preparação do governo militar tentou apagar a herança popular da Taça do Mundo posta em jogo pelos governos peronistas e como empregou a sua imaginação política e o seu projeto de governo para a sociedade argentina através da cerimónia de abertura. Conclusão:Ao tratarmos das celebrações da vitória da Argentina na final, analisamos os desajustes revelados por este projeto através de celebrações capazes de suspender, pelo menos momentaneamente, o significado e as hierarquias imaginadaspelas autoridades militares. A abordagem de Roberto DaMatta à relação entre desporto e sociedade e o seu foco em rituais e liminaridades continua a ser uma poderosa inspiração para a leitura de um evento extraordinário como o Campeonato do Mundo Argentina 78.
Objective: This work develops a reading of the 78 World Cup. Universo do futebolby Roberto DaMatta is guide to retrace a set of problems. Method:From a re-reading of testimonies preserved in different formats (periodical press, official documents, audiovisual records and images), the organization and rituals that delimited the 78 World Cup are reconstructed. Results and discussion:The article shows how the preparation of the military government tried to erase the popular heritage of the World Cup put into play by the Peronist governments and how it deployed through the opening ceremony its political imagination and its government project for the Argentine society. Conclusion:By approaching the celebrations of the Argentinean victory in the final, we analyze the mismatches evidenced by that project from celebrations capable of suspending, at least momentarily, the meaning and hierarchies imagined bythe military authorities. Roberto DaMatta's proposal about the relationship between sport and society and his focus on rituals and liminarities continues to be a powerful inspiration to read an extraordinary event such as the World Cup Argentina 78.
Subject(s)
Humans , Politics , Soccer , Soccer/history , Argentina , Sports , Ceremonial Behavior , Organizations , Civil Society , Mass Media , Military PersonnelABSTRACT
Este artigo objetiva identificar as representações das identidades de mulheres praticantes de futebol profissional a partir de comentários em site esportivo. Articulamos os discursos midiáticos às relações de poder e, por meio da análise cultural, identificamos limitações de gênero na área da Educação Física. Os principais pontos analisados apontam as várias ofensas sofridas pelas mulheres, entre elas os imperativos da feminilidade, fragilidade, maternidade e ataques em relação à orientação sexual. Conclui-se que esses espaços colaboram na construção do que é ser mulher dentro da cultura e buscam normalizar um ideal desejado, que confronta a conquista de visibilidade e aceitação das mulheres praticantes de futebol (AU).
This article aims to identify the representations of the identities of women in professional soccer, based on comments on a sport website. We attempt to articulate media discourses with power relations and, through cultural analysis, identify gender limitations in the area of Physical Education. The main points analyzed indicate to the various offenses suffered by women, among them the imperatives of femininity, fragility, motherhood and attacks in relation to sexual orientation. It is concluded that these spaces collaborate in the construction of what it means to be a woman within the culture and seek to normalize a desired ideal, which confronts the achievement of visibility and acceptance of women who play football (AU).
Este artículo tiene como objetivo identificar las representaciones de las identidades de las mujeres practicantes del fútbol profesional, basándose en los comentarios de un sitio web deportivo. Articulamos los discursos mediáticos con las relaciones de poder y, a través del análisis cultural, identificar las limitaciones de género en el ámbito de la Educación Física. Los principales puntos analizados apuntan a los diversos delitos que sufren las mujeres, entre ellos los imperativos de feminidad, fragilidad, maternidad y agresiones en relación con la orientación sexual. Se concluye que estos espacios colaboran en la construcción de lo que significa ser mujer dentro de la cultura y buscan normalizar un ideal deseado, que enfrente el logro de visibilidad y aceptación de las futbolistas (AU).