Prácticas de comercialización y consumo en Tandil : El circuito del salame y queso

Este trabajo explora los circuitos cortos de comercialización en la ciudad de Tandil (sudeste de la provincia de Buenos Aires), teniendo en cuenta la valorización y las prácticas de compra de los consumidores de productos regionales, particularmente salame y queso. El término circuito corto se relaciona con un consumidor que conoce la procedencia del producto que va a comprar (ya sea por su etiqueta o porque el vendedor se lo comunica o por estar visitando una localidad con trayectoria en productos regionales). Por ello, en este trabajo se caracterizan los comercios especializados en ventas de productos regionales de Tandil y se observan las prácticas de compra venta. En esa interacción del mundo de la compra y la venta, se analizan las percepciones de los consumidores y su construcción de imaginarios y calidad de los quesos y chacinados, en particular, el salame con Denominación de Origen (DO). Si bien, más de la mitad de los consumidores analizados son turistas, todos asocian la calidad de los productos regionales con la producción artesanal y local. La observación en los locales comerciales permitió constatar que co-existen múltiples valorizaciones de productos y formas de comprar.Mesa 25: Economía social solidaria y tercer sector. De la emergencia a la estrategia: más allá del “alivio a la pobreza”Facultad de Humanidades y Ciencias de la Educació

Prácticas de comercialización y consumo en Tandil : El circuito del salame y queso

Este trabajo explora los circuitos cortos de comercialización en la ciudad de Tandil (sudeste de la provincia de Buenos Aires), teniendo en cuenta la valorización y las prácticas de compra de los consumidores de productos regionales, particularmente salame y queso. El término circuito corto se relaciona con un consumidor que conoce la procedencia del producto que va a comprar (ya sea por su etiqueta o porque el vendedor se lo comunica o por estar visitando una localidad con trayectoria en productos regionales). Por ello, en este trabajo se caracterizan los comercios especializados en ventas de productos regionales de Tandil y se observan las prácticas de compra venta. En esa interacción del mundo de la compra y la venta, se analizan las percepciones de los consumidores y su construcción de imaginarios y calidad de los quesos y chacinados, en particular, el salame con Denominación de Origen (DO). Si bien, más de la mitad de los consumidores analizados son turistas, todos asocian la calidad de los productos regionales con la producción artesanal y local. La observación en los locales comerciales permitió constatar que co-existen múltiples valorizaciones de productos y formas de comprar.Mesa 25: Economía social solidaria y tercer sector. De la emergencia a la estrategia: más allá del “alivio a la pobreza”Facultad de Humanidades y Ciencias de la Educació

Local Development Applied to Energy Scheme

Manabí is a province with great potential, either in the agri-food sector or in the renewable generation of energy. However, the limitations inherited from traditional development models prevent achieving the sustainable development of this territory. This paper proposes a development model at the local level, aimed at achieving equity and, through the use of renewable energy sources and other potentials present in specific territories, to improve the quality of life and reduce the risks of societies present there. Through geographic information systems, it was possible to generate and display on maps information related to the energy demand at the provincial and cantonal levels, as well as the province's energy behavior considering the population density

Aniline incorporated silica nanobubbles

We report the synthesis of stearate functionalized nanobubbles of SiO2 with a few aniline molecules inside, represented as C6H5NH2@SiO2@stearate, exhibiting fluorescence with red-shifted emission. Stearic acid functionalization allows the materials to be handled just as free molecules, for dissolution, precipitation, storage etc. The methodology adopted involves adsorption of aniline on the surface of gold nanoparticles with subsequent growth of a silica shell through monolayers, followed by the selective removal of the metal core either using sodium cyanide or by a new reaction involving halocarbons. The material is stable and can be stored for extended periods without loss of fluorescence. Spectroscopic and voltammetric properties of the system were studied in order to understand the interaction of aniline with the shell as well as the monolayer, whilst transmission electron microscopy has been used to study the silica shell

A higher proportion of eicosapentaenoic acid (EPA) when combined with docosahexaenoic acid (DHA) in omega-3 dietary supplements provides higher antioxidant effects in human retinal cells

Retinal pigment epithelium (RPE) is a key regulator of retinal function and is directly related to the transport, delivery, and metabolism of long-chain n-3 polyunsaturated fatty acids (n3-PUFA), in the retina. Due to their functions and location, RPE cells are constantly exposed to oxidative stress. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have shown to have antioxidant effects by different mechanisms. For this reason, we designed an in vitro study to compare 10 formulations of DHA and EPA supplements from different origins and combined in different proportions, evaluating their effect on cell viability, cell proliferation, reactive oxygen species production, and cell migration using ARPE-19 cells. Furthermore, we assessed their ability to rescue RPE cells from the oxidative conditions seen in diabetic retinopathy. Our results showed that the different formulations of n3-PUFAs have a beneficial effect on cell viability and proliferation and are able to restore oxidative induced RPE damage. We observed that the n3-PUFA provided different results alone or combined in the same supplement. When combined, the best results were obtained in formulations that included a higher proportion of EPA than DHA. Moreover, n3-PUFA in the form of ethyl-esters had a worse performance when compared with triglycerides or phospholipid based formulations

The Searsville Lake Site (California, USA) as a candidate Global Boundary Stratotype Section and Point for the Anthropocene Series

Cores from Searsville Lake within Stanford University’s Jasper Ridge Biological Preserve, California, USA, are examined to identify a potential GSSP for the Anthropocene: core JRBP2018-VC01B (944.5 cm-long) and tightly correlated JRBP2018-VC01A (852.5 cm-long). Spanning from 1900 CE ± 3 years to 2018 CE, a secure chronology resolved to the sub-annual level allows detailed exploration of the Holocene-Anthropocene transition. We identify the primary GSSP marker as first appearance of 239,240Pu (372–374 cm) in JRBP2018-VC01B and designate the GSSP depth as the distinct boundary between wet and dry season at 366 cm (6 cm above the first sample containing 239,240Pu) and corresponding to October-December 1948 CE. This is consistent with a lag of 1–2 years between ejection of 239,240Pu into the atmosphere and deposition. Auxiliary markers include: first appearance of 137Cs in 1958; late 20th-century decreases in δ15N; late 20th-century elevation in SCPs, Hg, Pb, and other heavy metals; and changes in abundance and presence of ostracod, algae, rotifer, and protozoan microfossils. Fossil pollen document anthropogenic landscape changes related to logging and agriculture. As part of a major university, the Searsville site has long been used for research and education, serves users locally to internationally, and is protected yet accessible for future studies and communication about the Anthropocene. PLAIN WORD SUMMARY: The Global Boundary Stratotype Section and Point (GSSP) for the proposed Anthropocene Series/Epoch is suggested to lie in sediments accumulated over the last ~120 years in Searsville Lake, Woodside, California, USA. The site fulfills all of the ideal criteria for defining and placing a GSSP. In addition, the Searsville site is particularly appropriate to mark the onset of the Anthropocene, because it was anthropogenic activities–the damming of a watershed–that created a geologic record that now preserves the very signals that can be used to recognize the Anthropocene worldwide

Risk Factors for Recurrent Urinary Tract Infection and Renal Scarring

To identify risk factors for recurrent urinary tract infection (UTI) and renal scarring in children who have had 1 or 2 febrile or symptomatic UTIs and received no antimicrobial prophylaxis

Efficacy of iron fortification compared to iron supplementation among Vietnamese schoolchildren

The effect of iron fortification is generally assumed to be less than iron supplementation; however, the magnitude of difference in effects is not known. The present study aims to compare the efficacy of these two strategies on anaemia and iron status. After screening on low Hb, 425 anaemic children in six primary schools in Tam Nong district of Phu Tho province were included in a randomized, placebo-controlled trial comparing two groups receiving iron fortified instant noodles or iron supplementation for 6 months and a control group, with children in all groups having been dewormed. Blood samples were collected before and after intervention for haemoglobin, serum ferritin (SF), serum transferrin receptor (TfR), C-reactive protein (CRP), and haemoglobinopathies analysis. Regression analysis was used to assess the effect of iron fortification and iron supplementation on haemoglobin concentration, SF, TfR, body iron, and anaemic status as outcome variables. The improvement of haemoglobin, SF, and body iron level in the group receiving iron fortification was 42% (2.6 g/L versus 6.2 g/L), 20% (23.5 μg/L versus 117.3 μg/L), and 31.3% (1.4 mg/kg versus 4.4 mg/kg) of that in the iron supplementation group. The prevalence of anaemia dropped to 15.1% in the control group, with an additional reduction of anaemia of 8.5% in the iron supplementation group. The additional reduction due to iron fortification was 5.4%, which amounts to well over 50% of the impact of supplementation. In conclusion, the efficacy of iron fortification based on reduction of prevalence of anaemia, and on the change in haemoglobin level, is about half of the maximum impact of supplementation in case of optimal compliance. Thus, in a population of anaemic children with mild iron deficiency, iron fortification should be the preferred strategy to combat anaemia

Association of Polygenic Liability for Alcohol Dependence and EEG Connectivity in Adolescence and Young Adulthood

Differences in the connectivity of large-scale functional brain networks among individuals with alcohol use disorders (AUD), as well as those at risk for AUD, point to dysfunctional neural communication and related cognitive impairments. In this study, we examined how polygenic risk scores (PRS), derived from a recent GWAS of DSM-IV Alcohol Dependence (AD) conducted by the Psychiatric Genomics Consortium, relate to longitudinal measures of interhemispheric and intrahemispheric EEG connectivity (alpha, theta, and beta frequencies) in adolescent and young adult offspring from the Collaborative Study on the Genetics of Alcoholism (COGA) assessed between ages 12 and 31. Our findings indicate that AD PRS (p-threshold < 0.001) was associated with increased fronto-central, tempo-parietal, centro-parietal, and parietal-occipital interhemispheric theta and alpha connectivity in males only from ages 18-31 (beta coefficients ranged from 0.02-0.06, p-values ranged from 10-6-10-12), but not in females. Individuals with higher AD PRS also demonstrated more performance deficits on neuropsychological tasks (Tower of London task, visual span test) as well as increased risk for lifetime DSM-5 alcohol and opioid use disorders. We conclude that measures of neural connectivity, together with neurocognitive performance and substance use behavior, can be used to further understanding of how genetic risk variants from large GWAS of AUD may influence brain function. In addition, these data indicate the importance of examining sex and developmental effects, which otherwise may be masked. Understanding of neural mechanisms linking genetic variants emerging from GWAS to risk for AUD throughout development may help to identify specific points when neurocognitive prevention and intervention efforts may be most effective