Desenvolvimento de métodos analíticos ambientalmente mais amigáveis para a quantificação de bumetanida em medicamentos e urina

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo das características física do filme diamante CVD para utilização em coletores solares

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

The 2030 Agenda and the Sustainable Development Goals: An opportunity for Latin America and the Caribbean

The 2030 Agenda for Sustainable Development, adopted by the 193 Member States of the United Nations at the General Assembly in September 2015, outlines a transformative vision for economic, social and environmental development and will guide the work of the Organization towards this vision for the next 15 years. This new road map presents a historic opportunity for Latin America and the Caribbean, since it addresses some of the region’s most urgent priorities, such as reducing inequality in all its dimensions, promoting inclusive economic growth with decent work for all, creating sustainable cities and addressing climate change. The 17 Sustainable Development Goals (SDGs) associated with the Agenda help the region’s countries to gauge the starting point from which they set out towards this new, collective vision of sustainable development set forth in the 2030 Agenda and to analyse and craft the means of its implementation. The SDGs also represent a planning tool for the countries at the national and local levels. With their long-term approach, they offer support for each country on its path towards sustained, inclusive and environmentally friendly development, through the formulation of public policies and budget, monitoring and evaluation instruments. The 2030 Agenda is a civilizing agenda that places dignity and equality at the centre. At once far-sighted and ambitious, its implementation will require the engagement of all sectors of society and of the State. Accordingly, the representatives of governments, civil society, academic institutions and the private sector are invited to take ownership of this ambitious agenda, to discuss and embrace it as a tool for the creation of inclusive, fair societies that serve the citizens of today as well as future generations.

Análise termoeconômica da produção de biodiesel: aspectos técnicos, econômicos e ecológicos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação do efeito da inoculação de fungos termofílicos em pilhas de compostagem de lixo urbano

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Desenvolvimento de metodologia analítica ambientalmente mais amigável para a determinação de ureía em atrizes diversas

Pós-graduação em Química - IQ

Vanadium-doped TiO2 anatase nanostructures: the role of V in solid solution formation and its effect on the optical properties

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Treatment of polycarbonate by dielectric barrier discharge (DBD) at atmospheric pressure

Generally most plastic materials are intrinsically hydrophobic, low surface energy materials, and thus do not adhere well to other substances. Surface treatment of polymers by discharge plasmas is of great and increasing industrial application because it can uniformly modify the surface of sample without changing the material bulk properties and is environmentally friendly. The plasma processes that can be conducted under ambient pressure and temperature conditions have attracted special attention because of their easy implementation in industrial processing. Present work deals with surface modification of polycarbonate (PC) by a dielectric barrier discharge (DBD) at atmospheric pressure. The treatment was performed in a parallel plate reactor driven by a 60Hz power supply. The DBD plasmas at atmospheric pressure were generated in air and nitrogen. Material characterization was carried out by contact angle measurements, and X-ray photoelectron spectroscopy (XPS). The surface energy of the polymer surface was calculated from contact angle data by Owens-Wendt method using distilled water and diiodomethane as test liquids. The plasma-induced chemical modifications are associated with incorporation of polar oxygen and nitrogen containing groups on the polymer surface. Due to these surface modifications the DBD-treated polymers become more hydrophilic. Aging behavior of the treated samples revealed that the polymer surfaces were prone to hydrophobic recovery although they did not completely recover their original wetting properties.

Development and validation of a rapid turbidimetric assay to determine the potency of ampicillin sodium in powder for injectable solution

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Desenvolvimento de um método limpo para análise de 5-hidroximetil-2furfuraldeído em mel

Pós-graduação em Química - IQ

Multielemental evaluation of garbage bags by EDXRF

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Breves considerações sobre o conceito de natureza na genese da geografia moderna

From the twentieth century is witnessing a gradual increase in the debates and issues related to the degradation of nature, making the twenty-first century begins under the aegis of speeches linked to this concept as one of the axes of the concerns of humanity. There are several movements that are related to the degrading way of contemporary society and how we are called upon daily to save and defend nature, from the consumption of sustainable products through environmentally friendly lifestyles. While this may appear to be explicit that the current form of metabolic interaction man / nature in the current historical period of capitalism converges in a bleak scenario, however, there is an ideological and peacemaker convergence between productively and the systematic appeal to the consumption. Given these assumptions could be palpable the question that in the course of human history would be ideological conceptions of nature? Being a true statement what is the conflict present in the ideological struggle over nature with regard to the genesis of modern geography? Would it be overt or covert? These questions lead us to the present study, whose goal is to bring some notes about the ideological conceptions of the nature in human history, culminating in the possible influences upon the institutionalization of Modern Geography

Bioconversion of Cellulose to Hydrogen by dark fermentation

Hydrogen is known as a clean energy resource. The biological production of hydrogen has been attracting attention as an environmentally friendly processs that does not consume fossil fuels. Cellulosic plant and waste materials are potential resources for fermentative hydrogen production. Cellulose is a linear biopolymer of glucose molecules, connected by β-1,4-glycosidic bonds. Enzymatic hydrolysis of cellulose requires the presence of cellulase. The present study aimed to investigate the efficiency of acid pretreatment on ruminal fluid in order to enrich H2 producing bacteria consortia to enhance biohydrogen rate and substrate removal efficiency. In this study, fermentative hydrogen producers were enriched on cellulose (2g/L) in a modificated Del Nery medium (DNM) at 37ºC and initial pH 7.0 using rumen fluid (10% v/v) as inoculum. To increase the hydrogen production it was added cellulose (10mL) to the medium. The gas products (mainly H2 and CO2) was analyzed by gas chromatography (Shimadzu GC 2010) using a thermal conductivity detector. The volatile fatty acids and ethanol were also detected by GC using a flame ionization detector. Cellulose degradation was quantified by using the phenolsulfuric acid method. Analysis showed that the biogas produced from the anaerobic fermentation contained only hydrogen and carbon dioxide, without detectable methane after acid pretreatment test. On DNM the hydrogen production started with 4 h (5,3 x 105 mmol H2/L) of incubation, and the maximum H2 concentration was observed with 34 h (7,1 x 106 mmol H2/L) of incubation. During the process, it was observed a predominance of acetic acid and butyric acid as well as a low production of acetone, ethanol and nbutanol in all experimental phases. Butyrate accounted for more than 77% of total. As a result of the accumulation of volatile fatty acids (VFAs), the pH value in anaerobic digestion system was reduced to 4,0. On microscopy analyses there were observed rods with endospores. The batch anaerobic fermentation assays performed on anaerobic mixed inoculum from rumen fluid demonstrated the feasibility of H2 generation utilizing cellulose as substrate. Based on the results, it can be concluded that the acid treatment was efficient to inhibit the methanogenic archaea cells present in rumen fluid. The rumen fluid cells present a potential route in converting renewable biomass such as cellulose into hydrogen energy.

Consumo da sustentabilidade: a mercantilização da crise ambiental e a apropriação do discurso ecológico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise quimico-farmacêutica de Darunavir etanolato em comprimidos e de seu complexo de inclusão

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)