Biogas from aquatic plants: A bioenergetics incentive for constructed wetlands usage.

Our study demonstrated the energy gains when using biomass from three macrophyte, used commonly in constructed wetlands for wastewater treatment, the water hyacinth, cattail, and dwarf papyrus, as a substrate for biogas generation. The biochemical methane potential for the three biomass was evaluated in batch and at bench at 37 °C. A kinetic analysis of anaerobic digestion was also conducted for these substrates, evaluating the biogas composition and energy potential. Anaerobic digestion resulted in 94.27, and 25 mLCH4/gVSsubstrate of dry mass; and 19,569.65, 5617.88, and 6068.45 kJ/t of cattail, water hyacinth, and dwarf papyrus, respectively. Biomass from water hyacinth did sustain the fastest degradation, indicating that models considering the lag phase are more adequate to evaluate the anaerobic digestion of this type of substrate. Higher digestion speed resulted in the generation of 2901.88 kJ/t more energy with biomass from water hyacinth versus cattail, highlighting its value for use in constructed wetlands.

Effect of initial pH and substrate concentration on the lactic acid production from cassava wastewater fermentation by an enriched culture of acidogenic microorganisms.

Recently, cassava processing wastewater has been considered an alternative substrate for lactic acid production due to its appreciable carbohydrate levels. The authors carried out different batch reactor trials aiming to favor the production of lactic acid through the fermentation of non-sterilized cassava wastewater by an enriched culture of acidogenic microorganisms. To this end, the impact of different initial pHs (4.5, 5.0, 5.7, 6.5, and 7.0) and different initial substrate concentrations (10, 15.8, 30, 44.2, and 50 g/L) in terms of glucose on lactic acid production yield (Y) was evaluated by applying the design of experiment (DoE) known as central composite rotatable design (CCRD). The highest rate of lactic acid production (40 g/L) occurred with an initial pH of 6.5 and an initial substrate concentration of 50 g/L. The maximum yield was higher in trials T1, T2, T4, T5, and T8, reaching values of 0.80, 0.62, 0.60, 0.96, and 0.70 g/g, respectively. The maximum lactic acid productivity (P), of 0.60 and 0.73 g L-1  hr-1 , was observed in trials T5 and T8, respectively. The enriched culture of acidogenic microorganisms was shown to favor the production of lactic acid, since the production of other acids, such as acetic and propionic acid, did not exceed 3.5 and 4.5 g/L, respectively. © 2020 Water Environment Federation PRACTITIONER POINTS: Cassava wastewater presented potential to lactic acid production. The CCRD showed that highest lactic acid concentrations (40 g/L). The adoption of cassava wastewater or manipueira as a substrate resulted in important information on the tendency to obtain value-added products such as lactic acid.

Metal Contamination of Water and Sediments of the Vieira River, Montes Claros, Brazil.

Vieira River is the main recipient of domestic and industrial wastewater in the city of Montes Claros, MG, Brazil. Until 2010, domestic sewage was dumped in it without any kind of treatment. Concentrations of arsenic (As), chrome (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) were determined in water and sediment samples in eight locations along the Vieira River during the dry season of 2015. Concentrations of Cu, Ni, and Zn detected in the water at some sites along the Vieira River were superior to the reference limits for toxicity. The concentration of Cu and Ni restricts the use of water for irrigation in some sites of the river. The level of sediment contamination was assessed by five approaches, including contamination factor (CF), pollution load index (PLI), geo-accumulation index (Igeo), cluster analysis (CA), and principal component analysis/factor analysis (PCA/FA). The results showed that Cr and the downstream sampling site nearest to the Wastewater Treatment Plant of the city of Montes Claros had the highest values of PLI, Igeo, and CF, which reinforces the influence of domestic and industrial wastewater discharge in pollution of the Vieira River. In addition, CA and PCA/FA reinforced the assumption that Cr comes from anthropogenic pollution sources.

Temporo-mandibular disorders are an important comorbidity of migraine and may be clinically difficult to distinguish them from tension-type headache.

UNLABELLED: Clinical differentiation between the primary headaches and temporomandibular disorders (TMD) can be challenging. OBJECTIVES: To investigate the relationship between TMD and primary headaches by conducting face to face assessments in patients from an orofacial pain clinic and a headache tertiary center. METHOD: Sample consists of 289 individuals consecutively identified at a headache center and 78 individuals seen in an orofacial pain clinic because of symptoms suggestive of TMD. RESULTS: Migraine was diagnosed in 79.8% of headache sufferers, in headache tertiary center, and 25.6% of those in orofacial pain clinic (p<0.001). Tension-type headache was present in 20.4% and 46.1%, while the TMD painful occurred in 48.1% and 70.5% respectively (p<0.001). CONCLUSION: TMD is an important comorbidity of migraine and difficult to distinguish clinically from tension-type headache, and this headache was more frequent in the dental center than at the medical center.

Latin American consensus on guidelines for chronic migraine treatment.

Chronic migraine is a condition with significant prevalence all around the world and high socioeconomic impact, and its handling has been challenging neurologists. Developments for understanding its mechanisms and associated conditions, as well as that of new therapies, have been quick and important, a fact which has motivated the Latin American and Brazilian Headache Societies to prepare the present consensus. The treatment of chronic migraine should always be preceded by a careful diagnosis review; the detection of possible worsening factors and associated conditions; the stratification of seriousness/impossibility to treat; and monitoring establishment, with a pain diary. The present consensus deals with pharmacological and nonpharmacological forms of treatment to be used in chronic migraine.

Frequency of types of headache in the tertiary care center of the Hospital das Clínicas of the Universidade Federal de Minas Gerais, MG, Brazil.

OBJECTIVE: To assess the frequency of different diagnoses of headaches in the Headache Outpatient Clinic of the Hospital das Clínicas of the Universidade Federal de Minas Gerais (AmbCef-UFMG). METHODS: Cross sectional study with 289 patients consecutively attended to at AmbCef-UFMG. Headaches were diagnosed based on the criteria established by the International Classification of Headache Disorders (ICDH-2004). RESULTS: The average age of patients was 42.6 years, mostly women (86.9%) with less than nine years of education. Primary headaches were the most common type, with migraine found in 79.8% of cases, and tension-type headache (TTH) in 20.4%. Among the secondary types, the most common was headache caused by overuse of analgesics (16.6%), followed by less common types, such as idiopathic intracranial hypertension. Chronic daily headache (CDH) was found in 31.8% of cases. CONCLUSION: This study confirms literature data showing migraine as the most common headache in tertiary care centers. The expressive number of cases of CDH and headaches caused by overuse of analgesics indicates that, starting at the primary care level, patients should be advised to avoid the abuse of symptomatic drugs.

Avaliação da dispersão de efluente líquido de refinaria de petróleo / Evaluation of the dispersion of oil refinery liquid effluent

Neste trabalho são apresentadas duas técnicas para a avaliação da dispersão, num corpo d'água receptor, do efluente líquido de uma refinaria de petróleo. Assim, a pluma de dispersão foi caracterizada por medidas em campo de condutividade elétrica e por simulação computacional (simulador Cormix). Como caso de estudo, escolheu-se uma refinaria de petróleo cujo efluente é lançado no rio Atibaia (Paulínia/SP). O comportamento do efluente foi avaliado em um trecho de 1000 m após o ponto de lançamento. Os resultados demonstraram que a medição da condutividade elétrica é uma técnica adequada para a avaliação da dispersão de efluentes líquidos de refinaria de petróleo, pois apresentam alta condutividade elétrica e, com isso, há um forte contraste entre os valores do efluente e do rio. Além disso, outros parâmetros de qualidade da água do rio seguiram comportamento de dispersão semelhante ao da condutividade. A pluma de dispersão gerada pelo simulador computacional apresentou uma elevada concordância com os dados obtidos em campo. Nesse sentido, a simulação computacional pode ser uma ferramenta útil para a avaliação da dispersão do efluente considerando-se cenários hipotéticos, e para projetos de emissários.

In this paper, two techniques to evaluate the dispersion of the effluent of an oil refinery are presented. Thus, the dispersion plume was characterized by field measurements of electrical conductivity and by computational simulation (Cormix simulator). An oil refinery whose effluent is discharged on the Atibaia river (Paulínia/SP) is taken as study case. The behavior of the effluent was evaluated until 1000 m after the discharge. The results show that the measurement of electrical conductivity is a suitable technique to evaluate the dispersion of oil refinery wastewaters, since they have high conductivity and for this reason there is a strong contrast between the values of the wastewater and the ambient background. Furthermore, other water quality parameters had a dispersion behavior similar to that shown by the conductivity. The dispersion plume generated by the computational simulator showed high concordance with the field data. In this manner, computational simulation can be a useful tool to evaluate the dispersion of discharges considering hypothetic scenarios, as well as to design the discharge channel.

Effect of nutritional supplementation with milk whey proteins in amyotrophic lateral sclerosis patients.

OBJECTIVE: We evaluated the efficacy of oral supplementation with milk whey proteins and modified starch (70%WPI:30%MS), on nutritional and functional parameters of patients with ALS. METHOD: A prospective randomized double-blind study was performed with 16 ALS patients, divided in two groups, the treatment group received (70%WPI:30%MS) and the control group received (maltodextrin). They underwent prospective nutritional and functional assessment for 4 months. RESULTS: Patients in the treatment group presented weight gain, increased body mass index (BMI), increased arm muscle area and circumference, higher albumin, white blood cell and total lymphocyte counts, and reduced creatine-kinase, aspartate aminotransferase and alanine aminotransferase. In the control group, biochemical parameters did not change, but weight and BMI declined. CONCLUSION: Our results indicate that the agglomerate 70%WPI:30%MS may be useful in the nutritional therapy of patients with ALS.

Effect of nutritional supplementation with milk whey proteins in amyotrophic lateral sclerosis patients / Efeito da suplementação nutricional com proteínas do soro de leite em pacientes com esclerose lateral amiotrófica

OBJECTIVE: We evaluated the efficacy of oral supplementation with milk whey proteins and modified starch (70 percentWPI:30 percentMS), on nutritional and functional parameters of patients with ALS. METHOD: A prospective randomized double-blind study was performed with 16 ALS patients, divided in two groups, the treatment group received (70 percentWPI:30 percentMS) and the control group received (maltodextrin). They underwent prospective nutritional and functional assessment for 4 months. RESULTS: Patients in the treatment group presented weight gain, increased body mass index (BMI), increased arm muscle area and circumference, higher albumin, white blood cell and total lymphocyte counts, and reduced creatine-kinase, aspartate aminotransferase and alanine aminotransferase. In the control group, biochemical parameters did not change, but weight and BMI declined. CONCLUSION: Our results indicate that the agglomerate 70 percentWPI:30 percentMS may be useful in the nutritional therapy of patients with ALS.

OBJETIVO: Avaliar a eficácia da suplementação nutricional oral com proteínas do soro do leite e amido modificado (70 por centoWPI:30 por centoMS), nos parâmetros nutricionais e funcionais de pacientes com esclerose lateral amiotrófica (ELA). MÉTODO: Foi realizado estudo randomizado duplo-cego, com 16 pacientes com ELA, divididos em dois grupos, um que recebeu 70 por centoWPI:30 por centoMS e um controle que recebeu maltodextrina. Os pacientes foram submetidos a avaliação nutricional e funcional durante quatro meses. RESULTADOS: Nos pacientes que receberam o suplemento 70 por centoWPI:30 por centoMS, foi observado ganho de peso, aumento na contagem de linfócitos e redução de creatina kinase, aspartato aminotransferase and alanina aminotransferase. No grupo controle, os parâmetros bioquímicos não sofreram modificações; no entanto, peso e índice de massa corporal diminuíram. CONCLUSÃO: Nossos resultados indicam que o aglomerado 70 por centoWPI:30 por centoMS pode ser útil na terapia de pacientes com ALS.

Chronic headache and comorbidities: a two-phase, population-based, cross-sectional study.

BACKGROUND: Studies using resources of a public family health program to estimate the prevalence of chronic daily headaches (CDH) are lacking. OBJECTIVES: To estimate the 1-year prevalence of CDH, as well as the presence of associated psychiatric and temporomandibular disorders (TMD) comorbidities, on the entire population of a city representative of the rural area of Brazil. METHODS: This was a cross-sectional, population-based, 2-phase study. In the first phase, health agents interviewed all individuals older than 10 years, in a rural area of Brazil. In the second stage, all individuals who reported headaches on 4 or more days per week were then evaluated by a multidisciplinary team. CDH were classified according to the second edition of the International Classification of Headache Disorders (ICHD-2). Medication overuse headache was diagnosed, as per the ICHD-2, after detoxification trials. Psychiatric comorbidities and TMD were diagnosed based on the DSM-IV and on the Research Diagnostic Criteria for Temporomandibular Disorders criteria, respectively. RESULTS: A total of 1631 subjects participated in the direct interviews. Of them, 57 (3.6%) had CDH. Chronic migraine was the most common of the CDH (21, 36.8%). Chronic tension-type headache (10, 17.5%), medication overuse headache (13, 22.8%) and probable medication overuse headache (10, 17.5%) were also common. Psychiatric disorders were observed in 38 (67.3%) of the CDH subjects. TMD were seen in 33 (58.1)% of them. CONCLUSIONS: The prevalence of CDH in the rural area of Brazil is similar to what has been reported in previous studies. A significant proportion of them have psychiatric comorbidities and/or TMD. In this sample, comorbidities were as frequent as reported in convenience samples from tertiary headache centers.

Importância da interdisciplinaridade na avaliação das disfagias: avaliação clínica e videofluoroscópica da deglutição / Interdisciplinary evaluation of dysphagia: clinical swallowing evaluation and videoendoscopy of swallowing

O paciente disfágico apresenta prejuízos em diversos aspectos, sendo a atuação interdisciplinar fundamental para definição do diagnóstico e da conduta. A atuação em conjunto na avaliação clínica e videoendoscópica é de extrema importância. Objetivo: Estudar a correlação entre a avaliação clínica (ACD) e videoendoscópica da deglutição (VED) por meio da classificação do grau de severidade e a análise qualitativo/descritiva dos procedimentos. Forma de estudo: Estudo transversal, descritivo, comparativo. Material e método: Realizado no março a dezembro de 2006 no ambulatório de Otorrinolaringologia/Disfagia de um hospital do interior de São Paulo. Foram avaliados pela ACD e VED 30 pacientes disfágicos com diferentes doenças. Os dados foram classificados por meio de escalas de severidade e análise qualitativa/descritiva. Resultados: A correlação entre as escalas de severidade de ACD e VED apontou concordância baixa (KAPA = 0,4) de modo estatisticamente significante (p=0,006). A correlação entre a análise qualitativa/descritiva apontou concordância excelente (KAPA=0.962) estatisticamente significante (p<0.001) para a amostra total. Conclusão: A concordância baixa entre as escalas de severidade aponta a necessidade da realização de ambos os procedimentos, reforçando a VED como procedimento factível. A análise qualitativa descritiva apontou concordância excelente, dado que reforça a necessidade da compreensão da deglutição como um processo.

Patients with dysphagia have impairments in many aspects, and an interdisciplinary approach is fundamental to define diagnosis and treatment. A joint approach in the clinical and videoendoscopy evaluation is paramount. AIM: To study the correlation between the clinical assessment (ACD) and the videoendoscopic (VED) assessment of swallowing by classifying the degree of severity and the qualitative/descriptive analyses of the procedures. Study design: cross-sectional, descriptive and comparative. Materials and methods: held from March to December of 2006, at the Otolaryngology/Dysphagia ward of a hospital in the country side of São Paulo. 30 dysphagic patients with different disorders were assessed by ACD and VED. The data was classified by means of severity scales and qualitative/ descriptive analysis. Results: the correlation between severity ACD and VED scales pointed to a statistically significant low agreement (KAPA = 0.4) (p=0,006). The correlation between the qualitative/descriptive analysis pointed to an excellent and statistically significant agreement (KAPA=0.962) (p<0.001) concerning the entire sample. Conclusion: the low agreement between the severity scales point to a need to perform both procedures, reinforcing VED as a doable procedure. The descriptive qualitative analysis pointed to an excellent agreement, and such data reinforces our need to understand swallowing as a process.

Interdisciplinary evaluation of dysphagia: clinical swallowing evaluation and videoendoscopy of swallowing.

UNLABELLED: Patients with dysphagia have impairments in many aspects, and an interdisciplinary approach is fundamental to define diagnosis and treatment. A joint approach in the clinical and videoendoscopy evaluation is paramount. AIM: To study the correlation between the clinical assessment (ACD) and the videoendoscopic (VED) assessment of swallowing by classifying the degree of severity and the qualitative/descriptive analyses of the procedures. STUDY DESIGN: cross-sectional, descriptive and comparative. MATERIALS AND METHODS: held from March to December of 2006, at the Otolaryngology/Dysphagia ward of a hospital in the country side of São Paulo. 30 dysphagic patients with different disorders were assessed by ACD and VED. The data was classified by means of severity scales and qualitative/ descriptive analysis. RESULTS: the correlation between severity ACD and VED scales pointed to a statistically significant low agreement (KAPA = 0.4) (p=0,006). The correlation between the qualitative/descriptive analysis pointed to an excellent and statistically significant agreement (KAPA=0.962) (p<0.001) concerning the entire sample. CONCLUSION: the low agreement between the severity scales point to a need to perform both procedures, reinforcing VED as a doable procedure. The descriptive qualitative analysis pointed to an excellent agreement, and such data reinforces our need to understand swallowing as a process.

Correlation between migraine subtypes and depression.

This study has evaluated depression in patients with episodic migraine (n=98), chronic migraine without medication overuse (n=23), and chronic migraine with medication overuse (n=57). The Beck Depression Inventory (BDI) was used to evaluate depressive symptoms in these three groups. The mean BDI score obtained in all patients was higher than that observed in asymptomatic subjects (episodic migraine=16.09+/-11.79, chronic migraine with medication overuse=18.91+/-12.53, chronic migraine without medication overuse=19.83+/-14.79). This finding corroborates previous studies suggesting a co-morbid association between migraine and depression. Depression did not seem to be crucial in the transformation of migraine as the median BDI scores did not differ significantly between patients with episodic and chronic migraine. The median BDI scores of the patients with chronic migraine with medication overuse and that patients with chronic migraine without medication overuse were similar as well. Therefore, medication overuse behavior may not be related with depression.

Amyotrophic lateral sclerosis: combined nutritional, respiratory and functional assessment.

OBJECTIVE: To establish correlations between nutritional, functional and respiratory indices of patients with amyotrophic lateral sclerosis (ALS). METHOD: Twenty patients (13 appendicular-GA and 7 bulbar-GB) were included in the multidisciplinary study at the Neurological Clinic Ambulatory of the University of Campinas Hospital. RESULTS: Among the GA type significant correlation was observed between maximal inspiratory (MIP) and expiratory (MEP) pressure (r=-0.76), MEP and pulse oxymetry (r=0.58), MIP and percent weight loss (%WL; r=0.59), and between MIP, total and subscale respiratory scores (ALSFRS-R) with %WL. With regard to the GB, correlation was found between MEP and body mass index (BMI) (r=0.97). In both GA and GB correlations were noticed between the BMI and the variables mass (kg), fat (%), arm and wrist circumference (cm), and tricipital, subscapular and supra-iliac skinfolds (mm), as well as the arm muscle circumference (cm) and fatty arm muscular area (mm2). CONCLUSION: It is suggested that the application of simple anthropometric measurements could be useful in routine monitoring of patients with ALS.

Ophthalmoplegic migraine: a case with recurrent palsy of the abducens nerve.

Ophthalmoplegic migraine (OM) is a rare disorder characterized by recurrent episodes of migraine-like headaches associated with extrinsic ocular musculature palsy. In this article, we report a patient with OM that presented recurrent palsy of the abducens nerve and other atypical features. Case reports of OM with abducens nerve palsy were also reviewed.

Amyotrophic lateral sclerosis: combined nutritional, respiratory and functional assessment / Esclerose lateral amiotrófica: correlações dos indicadores da avaliação nutricional, funcional e respiratória

OBJECTIVE: To establish correlations between nutritional, functional and respiratory indices of patients with amyotrophic lateral sclerosis (ALS). METHOD: Twenty patients (13 appendicular - GA and 7 bulbar - GB) were included in the multidisciplinary study at the Neurological Clinic Ambulatory of the University of Campinas Hospital. RESULTS: Among the GA type significant correlation was observed between maximal inspiratory (MIP) and expiratory (MEP) pressure (r= -0.76), MEP and pulse oxymetry (r=0.58), MIP and percent weight loss ( percentWL; r=0.59), and between MIP, total and subscale respiratory scores (ALSFRS-R) with percentWL. With regard to the GB, correlation was found between MEP and body mass index (BMI) (r=0.97). In both GA and GB correlations were noticed between the BMI and the variables mass (kg), fat ( percent), arm and wrist circumference (cm), and tricipital, subscapular and supra-iliac skinfolds (mm), as well as the arm muscle circumference (cm) and fatty arm muscular area (mm²). CONCLUSION: It is suggested that the application of simple anthropometric measurements could be useful in routine monitoring of patients with ALS.

OBJETIVO: Correlacionar os indicadores utilizados na avaliação nutricional, funcional e respiratória de indivíduos com esclerose lateral amiotrófica (ELA). MÉTODO: Vinte pacientes (13 apendiculares - GA e 7 bulbares - GB) foram incluídos no estudo usando parâmetros nutricionais, respiratórios e escala funcional (ALSFRS-R). RESULTADOS: Entre os pacientes do GA, as correlações observadas foram: pressão inspiratória máxima (PImax) e expiratória máxima (PEmax) (r= -0,76); PEmax e oximetria de pulso (r=0,58); PImax e porcentagem de perda de peso ( por centoPP) (r=0,59); e entre PImax, escore ALSFRS-R com por centoPP. No GB, houve correlação entre MEP e índice de massa corporal (IMC) (r=0,97). Em GA e GB, observaram-se correlação entre IMC e as variáveis: massa, gordura ( por cento), circunferência braquial e punho, pregas cutâneas tricipital, subescapular e supra-ilíaca, circunferência muscular do braço (cm), área muscular gordurosa do braço (mm²). CONCLUSÃO: Sugere-se a aplicação deste conjunto de medidas durante a evolução clínica de indivíduos com ELA.

Avaliação da ingestão alimentar de indivíduos com esclerose lateral amiotrófica / Assessment of dietary intake of individuals with amyotrophic lateral sclerosis / Evaluación de la ingesta dietética de las personas con esclerosis lateral amiotrófica

A esclerose lateral amiotrófica (ELA) caracteriza-se por paralisia progressiva, secundária ao comprometimento de neurônios motores inferiores e superiores. Com a evolução da doença observa-se disfunção motora generalizada e insuficiência respiratória, perda progressiva de peso corporal e alterações na ingestão alimentar. O trabalho teve como objetivo avaliar o consumo alimentar, qualitativo e quantitativo, de pacientes com ELA, acompanhados no setor de Doenças Neuromusculares do HC-UNICAMP. Aplicou-se questionário de freqüência de consumo alimentar e o recordatório de 24 horas, em 23 pacientes. Os alimentos mais consumidos diariamente foram óleo (100%), arroz (96%), leite (96%), feijão (91%) e pão francês (74%). Todos os pacientes apresentaram inadequação para energia, fibras, cálcio e vitamina E. Considerando-se a predominância topográfica do comprometimento muscular na doença, foram observadas diferenças significativas entre pacientes predominantemente bulbares e de predomínio apendicular. Nos pacientes com maior envolvimento apendicular houve maior ingestão energética (p=0,02), de gordura saturada (p=0,03), monoinsaturada (p=0,04) e polinsaturada (p=0,001), além de colesterol (p=0,001) e fibras (p=0,001). Os resultados obtidos permitiram conhecer os hábitos alimentares desta população e estimar a ingestão alimentar. Os dados podem ser aplicados no atendimento nutricional, e orientações específicas poderão proporcionar uma alimentação mais adequada.

Amyotrophic lateral sclerosis (ALS) is characterized by progressive paralysis, secondary to the involvement of upper and lower motor neurons. With disease progression there is widespread motor dysfunction and respiratory failure, progressive loss of body weight and changes in food intake. The study aimed to assess food intake, quality and quantity of ALS patients, accompanied in the field of neuromuscular disorders of the HC-UNICAMP. Questionnaire was used for food frequency and recall of 24 hours in 23 patients. The daily food consumption were oil (100%), rice (96%), milk (96%), beans (91%) and French bread (74%). All patients had inadequate energy, fiber, calcium and vitamin E. Considering the prevalence of topographic affected muscle groups, significant differences were found between predominantly bulbar patients and predominantly appendicular. In patients with greater involvement appendicular energy intake was higher (p = 0.02), saturated fat (p = 0.03), monounsaturated (p = 0.04), polyunsaturated fat (p = 0.001), cholesterol (p = 0.001) and fiber (p = 0.001). The results helped to understand the eating habits of this population and to estimate the dietary intake. The data can be applied in the nutritional intervention, and specific guidelines may provide a more appropriate feeding.

La esclerosis lateral amiotrófica (ELA) se caracteriza por parálisis progresiva, secundaria a la implicación de la parte superior e inferior de las neuronas motoras. Con la progresión de la enfermedad existe disfunción motora generalizada e insuficiencia respiratoria, pérdida progresiva de peso corporal y cambios en la ingesta de alimentos. El objetivo del estudio fue evaluar la ingesta de alimentos, la calidad y la cantidad de pacientes de ELA, acompañado en el campo de los trastornos neuromusculares de la HC-UNICAMP. Se utilizó el cuestionario sobre la frecuencia de alimentos y recordatorio de 24 horas en 23 pacientes. El consumo diario de alimentos fueron aceite (100%), arroz (96%), leche (96%), frijol (91%) y pan francés (74%). Todos los pacientes tenían insuficiencia de energía, fibra, calcio y vitamina E. Teniendo en cuenta la prevalencia de la topográfico grupos musculares afectados, se encontraron diferencias significativas entre los pacientes predominantemente bulbar y predominantemente apendicular. En pacientes con afectación apendicular aumento fue mayor ingesta de energía (p = 0,02), grasa saturada (p = 0,03), monoinsaturados (p = 0,04), grasa poliinsaturada (p = 0,001), colesterol (p = 0,001) y fibra (p = 0,001). Los resultados ayudaron a comprender los hábitos alimentarios de esta población y para estimar la ingesta alimentaria. Los datos pueden ser aplicados en la intervención nutricional, y unas directrices específicas pueden proporcionar una alimentación más adecuada.

Remoção de sulfato de águas residuárias industriais em reator anaeróbio de leito fixo operado em bateladas sequenciais / Sulfate removal from industrial wastewaters in fixed film anaerobic sequential batch reactor

Avaliou-se o potencial de uso reator anaeróbio operado em bateladas seqüenciais com biomassa imobilizada (ASBBR), em escala piloto, no tratamento de água residuária industrial contendo elevadas concentrações de sulfato. O ASBBR, com volume total de 1.2 m³, foi preenchido com carvão mineral como meio suporte para imobilização da biomassa (leito fixo). Foram aplicadas cargas de 0,15; 0,30; 0,65; 1,30 e 1,90 kg SO4-2/ciclo (ou batelada) com duração de 48 h, correspondendo, respectivamente, às concentrações de sulfato no afluente de 0,25; 0,50; 1,0; 2,0 e 3,0 gSO4-2.l-1. Utilizou-se etanol como doador de elétrons para a redução do sulfato. O reator foi operado à temperatura ambiente (29±8ºC), tendo sido obtidas eficiências médias na redução de sulfato entre 88 e 92 por cento em 92 ciclos (275 dias). Os resultados obtidos permitem concluir que o uso de reatores ASBBR constitui-se em alternativa eficiente para a remoção de sulfatos de águas residuárias com características semelhantes às utilizadas neste trabalho.

The potential use of an anaerobic sequencing batch biofilm reactor (ASBBR) in pilot-scale for the treatment of a sulfate-rich industrial wastewater was evaluated. The pilot 1.2 m³ ASBBR reactor was filled with mineral coal for biomass immobilization (fixed film). The sulfate loading rates applied were 0.15; 0.30; 0.65; 1.30 and 1.90 kg SO4-2/cycle (or batch). Each cycle lasted 48 h. The influent concentrations were, respectively, 0.25; 0.50; 1.0; 2.0 and 3.0 gSO4-2.l-1. Ethanol was used as electron donor for sulfate reduction. The reactor operated at ambient temperature (29±8ºC), and the mean efficiencies of sulfate removal were in the range 88 to 92 percent in the 92 run cycles. The total operating period comprised 275 days. Based on the results obtained in this research, it could be concluded that the ASBBR can be an efficient alternative for the removal of sulfate from other industrial wastewaters with similar characteristics.

Environmental stress and temporomandibular disorder (TMD) among members of a public university in Brazil

Temporomandibular disorder (TMD) is one of several somatic manifestations of stress. Several studies have shown that some patients with TMD suffer more anxiety than individuals without this condition. The aim of this study was to identify individuals with TMD and correlate with environmental stress among members of a public university. A proportional stratified probabilistic procedure was used to select 455 subject’s age 17-63 yrs consisted of students, staff and professors. The subjects were enlisted after lunch. TMD were diagnosed using a screening questionnaire based on the American Academy of Orofacial Pain (AAOP). Presence of TMD was defined based on pain in chewing or speaking, tired maxillae and pain in the head, neck and/or teeth. Environmental stress was diagnosed by using the Social Readjustment Rating Scale (SRRS).Gender distribution was similar among undergraduate and graduate students, but there were significant differences in the sex ratio of university staff (66.7% were females) and professors (81.8% were males). Prevalence of TMD influenced by stress among women was significantly greater than in men of the same age group (p=0.0001), and almost all individuals (90.9%) with TMD had a high level of stress (p=0.0082). These findings suggest that there is positive association between TMD and environmental stress.