Entre a Fome-tabu e o Trauma Intencional: Implicações Políticas e Metapsicológicas da Fome / Between Famine-taboo and Intentional Trauma: Political and Metapsychological Implications of Famine / Entre el Tabú del Hambre y el Trauma Intencional: Implicaciones Políticas y Metapsicológicas del Hambre

A partir do reconhecimento de uma situação original de desamparo e dependência do outro a qual a criança está estruturalmente submetida, pontua-se que o apaziguamento da fome - considerado uma necessidade fundamental - culmina na consolidação da alteridade como lugar de referência e endereçamento, na erogeneização do corpo próprio, na constituição do Eu e na potencialização do devir do desejo. Logo, a fome e o fracasso do apelo ao outro são experiências potencialmente traumáticas, que produzem vulnerabilidades sociais e psíquicas graves e duradouras. Entende-se que as frustrações das expectativas de saciedade da fome, sobretudo na infância, produzem uma espécie de dor moral, correlata à fragilização da confiança no outro. Com Josué de Castro, reforça-se o aspecto político inarredável da fome, que se amalgama a suas implicações psíquicas e físicas. Com o médico e escritor pernambucano, sublinha-se a existência de uma intenção histórica do Estado brasileiro de ignorar, desmentir e até mesmo provocar a fome. É lembrado que, como um arguto leitor de Freud, o autor faz uso da teoria pulsional psicanalítica como operador conceitual para pensar a fome. Na esteira da contribuição de Castro, Ferenczi é trazido à baila a fim de fundamentar o caráter intencional e político do trauma da fome.

From the recognition of an original situation of helplessness and dependence on the other to which the child is structurally subjected, it is pointed out that the appeasement of hunger - considered a fundamental need - culminates in the consolidation of alterity as a place of reference and addressing, in the erogenization of the own body, the constitution of the Self, and the potentialization of desire's becoming. Therefore, hunger and the failure of the appeal to the other are potentially traumatic experiences that produce serious and lasting social and psychological vulnerabilities. Thence, frustrating the expectations of hunger's satiety, especially in childhood, produce a kind of moral pain, which is correlated to the weakening of trust the other. With Josué de Castro, the inescapable political aspect of hunger, which is merged with its psychological and physical implications, is reinforced. From his ideas, the existence of a historical intention of the Brazilian state to ignore, deny, and even provoke hunger is emphasized. As a keen reader of Freud, the author uses psychoanalytic drive theory as a conceptual operator to think about hunger. Following Castro's contribution, Ferenczi is brought up to support the intentional and political nature of hunger trauma.

A partir del reconocimiento de una situación original de desamparo y dependencia del otro a la que el niño está estructuralmente sometido, se señala que el apaciguamiento del hambre - considerada una necesidad fundamental - culmina en la consolidación de la alteridad como lugar de referencia y direccionamiento, la erogeneización del cuerpo propio, la constitución del Yo y la potencialización del devenir del deseo. Entonces, el hambre y el fracaso del llamado al otro son experiencias potencialmente traumáticas que producen vulnerabilidades sociales y psicológicas graves y duraderas. Las frustraciones de las expectativas de saciedad del hambre, especialmente en la infancia, origina un dolor moral, correlacionado con el debilitamiento de la confianza en el otro. Con Josué de Castro, se refuerza el aspecto político ineludible del hambre, que se amalgama a sus implicaciones psicológicas y físicas. Con el escritor brasileño, se enfatiza la existencia de una intención histórica del Estado brasileño de ignorar, negar e incluso provocar el hambre. Se recuerda que, como lector perspicaz de Freud, el autor utiliza la teoría pulsional psicoanalítica como operador conceptual para pensar en el hambre. Siguiendo la contribución de Castro, Ferenczi se pone de relieve para respaldar la naturaleza intencional y política del trauma del hambre.

Toward the use of mixed microbial cultures for the biological production of adipic and levulinic acid.

Biological synthesis of high added-value compounds like adipic acid (AA), levulinic acid (LA), or polyhydroxybutyrate (PHB) using pure culture has been separately reported. However, pure culture requires sterile conditions and the use of specific carbon sources resulting in high operating costs. Different alternatives based on the use of mixed microbial cultures (MMC) have been explored to resolve this problem. MMC have been widely reported for the production of PHB, but scarcely reported for LA production and never for AA synthesis. This work presents a novel strategy for the co-production of AA LA, and PHB using MMC. The strategy consists in selecting an MMC producer of AA, LA and PHB from an inoculum obtained from a wastewater treatment plant, which is then subjected to the feast and famine culture strategy in a sequential batch reactor, coupled with a batch reactor step to enhance the accumulation of AA and LA. The results showed that the MMC could produce a 16 ± 2, 23 ± 1 and 5 ± %1 (g compound/g volatile solids) of AA, LA and PHB, respectively, using a non-fermented residual biomass rich in pentose, namely synthetic hemicellulose hydrolysate (SHH) as the carbon source. These results contribute to generating future research to better understand and optimise the biosynthesis of these compounds by MMC.

On-Line Control of Feast/Famine Cycles to Improve PHB Accumulation during Cultivation of Mixed Microbial Cultures in Sequential Batch Reactors.

Production of polyhydroxyalkanoates (PHA) has generated great interest as building blocks for bioplastic production. Their production using mixed microbial cultures represents an interesting alternative, since it enables the use of organic wastes as a carbon source. Feast/famine strategy is a common way to promote selection of microorganisms with PHA accumulation capacity. However, when using waste sources, changes in substrate concentration are expected, that may affect performance and efficiency of the process. This study showed how the dissolved oxygen level can be used for online control of the cycle time, ensuring that the desired feast/famine ratio is effectively applied. An operation strategy is presented and validated, using sequential batch reactors fed with acetate as the carbon source. Production of polyhydroxybutyrate (PHB) was studied, which is the expected type of PHA to be synthetized when using acetate as substrate. Two reactors were operated by applying the proposed control strategy, to provide F/F ratios of 0.2 and 0.6, respectively. A third reactor was operated with a fixed cycle time, for comparison purposes. Results showed that the reactor that operated at an F/F ratio of 0.6 promoted higher biomass productivity and PHB content, as a result of a better use of available time, preventing unnecessary long famine times. The application of the tested strategy is a simple a reliable way to promote a better performance of feast/famine-based bioreactors involving mixed microbial cultures for PHB production.

Beyond PHA: Stimulating intracellular accumulation of added-value compounds in mixed microbial cultures.

This review compiled and analyzed the operational conditions (dissolved oxygen, feast and famine ratio, sequential batch reactor cycle length, organic loading rate (OLR), pH, C/N, and temperature) established during the feast and famine culture strategy for the mixed microbial cultures (MMC) selection to understand how these variables could affect the synthesis of polyhydroxyalkanoates, polyglucose, triacylglycerides, levulinic acid and adipic acid from non-fermented substrates. According to the reported information, the dissolved oxygen has a greater impact on the type and amount of produced compound. In a lesser extent, the OLR and the cycle length were identified to have an impact on the accumulation of polyhydroxyalkanoates, whose accumulation was favored at lower OLR and longer cycle lengths. Thereby, the information of this work will allow the design of future strategies for the simultaneous accumulation of compounds of interest other than the polyhydroxyalkanoates or understand the operational conditions that would optimize the polyhydroxyalkanoates production.

La falacia de los niños gordos anémicos / The fallacy of the fat anemic child

Fundamento: los estudios sugieren la presencia de deficiencia de hierro en niños obesos, lo que conduciría a una mayor incidencia de anemia en este grupo. Objetivo: evaluar la prevalencia de anemia entre niños con sobrepeso y obesidad de dos niveles socioeconómicos y dos regiones diferentes en Brasil. Métodos: se obtuvieron datos de hemoglobina y antropometría de 598 niños y adolescentes con sobrepeso y obesidad de dos servicios especializados en la atención de estos niños. Resultados: la prevalencia global de anemia fue del 5,8% y el nivel medio de hemoglobina fue de 13,2 mg / dL, sin diferencia estadística para los dos indicadores según sobrepeso u obesidad y grupo de edad. Sin embargo, la hemoglobina media fue mayor entre los varones y, en el servicio con atención prestada a una población de menor nivel socioeconómico, la prevalencia de anemia fue mayor. Conclusión: la prevalencia de anemia encontrada en niños y adolescentes con sobrepeso y obesidad fue bastante baja, siendo mayor en la población más pobre. Para los niños y adolescentes con sobrepeso, la anemia parece estar más relacionada con el nivel socioeconómico que con la presencia de exceso de peso.

Background: studies suggest the presence of iron deficiency among obese children, which would lead to a higher incidence of anemia in this group. Aim: to assess the prevalence of anemia among overweight and obese children from two socioeconomic levels and two different regions in Brazil. Methods: hemoglobin and anthropometric data on 598 overweight and obese children and adolescents were obtained from two services specialized in the care of these children. Results: the overall prevalence of anemia was 5.8% and mean hemoglobin level was 13.2 mg/dL, with no statistical difference for the two indicators according to overweight or obesity and age group. However, the mean hemoglobin was higher among boys and, in the service with care provided to a population of lower socioeconomic status, the prevalence of anemia was higher. Conclusion: the prevalence of anemia found among overweight and obese children and adolescents was quite low, being higher in the poorest population. For overweight children and adolescents, anemia seems to be more related to socioeconomic status than to the presence of excess weight.

Effect of Operational Conditions on the Behaviour and Associated Costs of Mixed Microbial Cultures for PHA Production.

Massive production and disposal of petrochemical derived plastics represent relevant environmental problems. Polyhydroxyalkanoates (PHA) are a renewable alternative that can even be produced from wastes. The production of PHA from acetate using mixed microbial cultures was studied. The effect of two key operational conditions was evaluated, i.e., substrate concentration and cycle length. The effects of these factors on several responses were studied using a surface response methodology. Several reactors were operated under selected conditions for at least 10 solids retention times to ensure stable operation. Results show that conditions providing higher PHA content involve lower biomass productivities. This has a great impact on biomass production costs. Results suggest then that PHA content alone may not be a reasonable criterion for determining optimal conditions for PHB production. If production costs need to be reduced, conditions that provide a lower PHA content in the selection reactor, but a higher biomass productivity may be of interest.

El plátano: indicador de hambre y escasez de alimentos en familias beneficiarias de programas alimentarios en Vigía del Fuerte, Colombia / Plantain: indicator of hunger and food shortage in families benefiting from food programs in Vigia del Fuerte, Colombia

RESUMEN Objetivo Interpretar la percepción de hambre y escasez de alimentos en familias beneficiarias de Programas alimentarios MANA (Mejoramiento Alimentario y Nutricional de Antioquia) en Vigía del Fuerte. Método La investigación se orientó desde el enfoque cualitativo, usando la Etnografía Focalizada como método, para la recolección de la información se utilizaron entrevistas individuales y grupos de discusión. Resultados Las comunidades de la cuenca del río Murrí están protegidas del hambre física por la disponibilidad permanente del plátano; el hambre está asociada a la ausencia de carne o "liga" y al hecho de comer "plátano vacío"; así mismo se refieren al hambre como la sensación de desasosiego, debido al dolor de cabeza y de estómago que experimentan de manera permanente e intensa. Conclusiones A pesar de que las comunidades vigieñas disponen durante todo el tiempo de plátano, protegiéndolas del hambre física; estas no lo aprecian así, como alimento que calma su hambre y los libera, de cierta manera, de la escasez, porque su presencia como único alimento disponible, les recuerda, precisamente, que tienen carencia y hambre.(AU)

ABSTRACT Objective To analyze the perception of hunger and food shortage in families benefiting from MANA (Food and Nutritional Improvement) food programs in Vigía del Fuerte, Colombia. Methods Qualitative research, using focused ethnography as a method for collecting information. Individual interviews and discussion groups were used. Results Even though the communities that live by the Murrí River basin are protected from physical hunger due to the constant availability of plantain or musa, hunger is associated with the absence of meat or liga and the fact that they feel forced to eat empty musa. They also refer to hunger as the feeling of uneasiness caused by headache and stomachache. Conclusions Despite the fact that the communities of Vigía del Fuerte have access to plantain throughout the year, thus protecting them from physical hunger, they do not consider it as food that could calm their hunger and free them from scarcity. This happens because its presence as the only food available reminds them, precisely, that they lack certain conditions and feel hunger.(AU)

Novel system configuration with activated sludge like-geometry to develop aerobic granular biomass under continuous flow.

A novel continuous flow system with "flat geometry" composed by two completely mixed aerobic tanks in series and a settler was used to promote the formation of aerobic granular sludge. Making similarities of this system with a typical sequencing batch reactor (SBR), for aerobic granules cultivation, the value of the tank 1/tank 2 vol ratio and the biomass recirculation rate would correspond with the feast/famine length ratio and the length of the operational cycle, respectively, while the settler upflow liquid velocity imposed would be related to the settling time. From the three experiments performed the best results were obtained when the tank 1/tank 2 vol ratio was of 0.28, the sludge recycling ratio of 0.25 and the settler upflow velocity of 2.5 m/h. At these conditions the aggregates had settling velocities between 29 and 113 m/h, sludge volume index at 10 min (SVI10) of 70 mL/g TSS and diameters between 1.0 and 5.0 mm.

[The population of a Mexican parish in the eighteenth century: Santa Maria de la Presentation de Chilapa]. / La poblacion de una parroquia novohispana del siglo XVIII: Santa Maria de la Presentacion de Chilapa.

PIP: The author analyzes parish registers and census data for Santa Maria de la Presentacion de Chilapa, Mexico, to determine the characteristics of the parish population during the final quarter of the eighteenth century. He provides estimates of age and sex distribution and marital status, and considers the demographic impact of epidemics and famines brought about by colonization.^ieng