A liberal versus an entrepreneurial university? How universities communicate their values

This study explores the extent to which universities declare their orientation to liberal and neoliberal values and how it reflects in the university’s mission. The research analyses the values declared by universities in Lithuania and shows that institutes of higher education demonstrate a balance between liberal and neoliberal ideas. In the process of globalisation, universities have become homogeneous, which has alarming implications for higher educa-tion in Lithuania. Despite the existence of a third way, the danger is that liberal values will gradually disappear over time

MÉTODO PARA DETERMINAÇÃO DE HEPTACLORO, ALDRIN, DIELDRIN E ENDRIN EM PRÓPOLIS

Desenvolveu-se método para determinação de Heptacloro, Aldrin, Dieldrin e Endrin em própolis (sólida e solução). Após homogeneização da amostra com Celite, a extração dos pesticidas foi efetuada com hexano e o extrato purificado em cartucho de Florisil. A eluição dos pesticidas foi realizada com hexano:diclorometano (9:1 v/v) e o eluato concentrado e analisado por cromatografia em fase gasosa com detecção por captura de elétrons (CGDCE). A eficiência do método proposto foi demonstrada pelos valores médios de recuperação entre 79 e 100%, com valores de desvio padrão relativo entre 2,7 e 16,6%, obtidos nas análises de recuperação realizadas com amostras fortificadas nos níveis 0,6 e 1,2 µg/g. METHOD FOR THE DETERMINATION OF HEPTACHLOR, ALDRIN, DIELDRIN AND ENDRIN IN PROPOLIS Abstract A method for the determination of Heptachlor, Aldrin, Dieldrin and Endrin in propolis (solid and solution) was developed. After the samples homogenization with Celite the pesticides extraction was carried out with hexane and the extract was purified in Florisil cartridge. The pesticides elution was processed with hexane:dichloromethane (9:1 v/v) and the concentrated eluate was analysed using gas-liquid chromatography with electron capture detection (GCECD). The efficiency of the proposed method was demonstrated by mean recoveries, ranging from 79 to 100% with relative standard deviation values between 2.7 to 16.6%, obtained in the recovery analysis with fortified samples at levels of 0.6 and 1.2 µg/

MSPD procedure combined with GC-MS for the determination of procymidone, bifenthrin, malathion and pirimicarb in honey

A method based on matrix solid-phase dispersion and gas chromatography-mass spectrometry to determine procymidone, malathion, bifenthrin and pirimicarb in honey is described. The best results were obtained using 1.0 g of honey, 1.0 g of silica-gel as dispersant sorbent and acetonitrile as eluting solvent. The method was validated by fortified honey samples at three concentration levels (0.2, 0.5 to 1.0 mg kg-1). Average recoveries (n=7) ranged from 54 to 84%, with relative standard deviations between 3.7 and 8.5%. Detection and quantification limits attained by the developed method ranged from 0.02 to 0.08 mg kg-1 and 0.07 to 0.25 mg kg-1 for the honey, respectively

Tropical peat as a versatile material for solid-phase extraction of pesticides from medicinal plant Cordia salicifolia

Natural peat was tested for solid-phase extraction of acephate, chlorpropham, pirimicarb, bifenthrin, tetradifon and phosalone from the medicinal plant Cordia salicifolia, using gas chromatography-mass spectrometry with selected ion monitoring (GC/MS, SIM). Considering that there are no Brazilian regulations concerning maximum permissible pesticide residue concentrations in medicinal herbs, recovery experiments were carried out (three replicates) at two arbitrary fortification levels (0.5 and 1.0 mg kg-1), resulting in recoveries ranging from 64% to 118% and relative standard deviations between 5.6% and 26.4% for peat sorbent. Detection and quantification limits for herb ranged from 0.10 to 0.15 mg kg-1 and from 0.15 to 0.25 mg kg-1, respectively, for the different pesticides studied. The developed method was linear over the range assayed, 0.1-5.0 μg g-1, with correlation coefficients ranging from 0.9975 to 0.9986 for all pesticides. Comparison between natural peat and conventional sorbent (neutral alumina) showed similar performance of peat for the six pesticides tested

OVICIDAL EFFECT OF PIPERACEAE SPECIES ON Biomphalaria glabrata, Schistosoma mansoni HOST

SUMMARY Schistosomiasis is a neglected disease with public health importance in tropical and subtropical regions. An alternative to the disease control is the use of molluscicides to eliminate or reduce the intermediate host snail population causing a reduction of transmission in endemic regions. In this study nine extracts from eight Piperaceae species were evaluated against Biomphalaria glabrata embryos at blastula stage. The extracts were evaluated in concentrations ranging from 100 to 10 mg/L. Piper crassinervium and Piper tuberculatum extracts were the most active (100% of mortality at 20 mg/L and 30 mg/L respectively)