Quantitative determination of aflatoxin by high performance liquid chromatography in wheat silos in Golestan province, north of Iran

Background: Aflatoxins are the most common mycotoxins that contaminate crops. They are produced by fungi such as Aspergillus flavus and Aspergillus parasiticus. Wheat (Tricitumaestivum) is one of the most important staple foods used in Iran, and the environmental conditions in the north of Iran are favorable to fungal growth. This study was designed in order to determine the aflatoxin concentration in wheat samples from silos in Golestan Province north of Iran. Methods: Samples were collected from three silos of Golestan province. First, aflatoxins were isolated using immu-noaffinity chromatography. Then the aflatoxin concentrations were determined by High performance liquid chroma-tography (HPLC) method and fluorescence detector. Results: Ten out of 34 samples (29.4 of samples) were contaminated by aflatoxins.No concentration was found above permitted aflatoxin levels in Iran (15 ng/g). In one sample (2.9), aflatoxin B1 was seen over the permissible limits in Iran. The highest level found in samples for total aflatoxin, aflatoxin B1, aflatoxin B2, aflatoxin G1 and aflatox-in G2 were 7.08 ng/g, 6.91 ng/g, 0.29 ng/g, 1.37 ng/g and 0.23 ng/g, respectively. No correlation was found between humidity levels in wheat samples contained aflatoxin and wheat samples without aflatoxin. Conclusion: Despite the total aflatoxins determined in samples were below the permissible limits in Iran, the 29 aflatoxin contamination rate can negatively affect health factors and it should not be neglected. So, it is predictable that if the storage duration of samples increases, the aflatoxin contamination levels will increase. © 2015, Iranian Journal of Public Health. All rights reserved

Consideracoes gerais sobre as principais pragas dos produtos armazenados e seu controle.

Consideracoes das principais pragas dos produtos armazenados e seu controle.bitstream/item/140489/1/ID-7312.pd

Predicting and changing attitudes toward same-gender parenting: Informational influence, parasocial contact, and religious fundamentalism

Attitudes toward same-gender parenting are of timely relevance, given increasing recognition of LGBTQ+ rights around the world. Two studies examined the influence of 2 predictors of attitudes toward same-gender parenting. The first was informational influence, which was manipulated via a newspaper-style article dispelling misconceptions about gender identity of children reared by same-gender parents. The second was social influence via parasocial contact measured as prior exposure to a same-gender adoptive parents TV show. Religious fundamentalism (RF) was assessed as an individual difference moderator of informational or social influence. Outcome variables were beliefs about same-gender parenting, perceived problems with same-gender parenting, and social distance from same-gender adoptive parents. We studied these relationships in Canada (Study 1, where same-gender couples’ adoption is legal) and in Italy (Study 2, where same-gender couples’ adoption is not legal). RF moderated the results of informational and social influence in the Canadian context, such that those high in RF tended to be favorably influenced. In Italy, results of informational influence were typically observed among those low in RF, and social influence directly predicted favorable attitudes toward same-gender parenting. Informational and social influence can improve attitudes toward same-gender parenting, but RF and legal/cultural context are also important to considerinfo:eu-repo/semantics/publishedVersio

Performance of Prefabricated Vertical Drains in Improvement of Malaysian Soft Marine Clay

In Malaysia, an increasing need has developed for various types of construction on sites underlain by soft cohesive soil. The use of vertical drains in conjunction with preloading is one of widely used methods to improve the geotechnical properties of the soft soil. This is due to its relatively cheap cost and availability of drains as well as the practical ease of application. This paper presents a number of high quality case studies which had been carried out to study the effectiveness of the vertical drains. The results of the studies are presented and discussed. The performance as well as the effectiveness of the soil improvement method are evaluated

Principais pragas do coqueiro e alternativas de controle.

Pragas de importância econômica para a cultura do coqueiro sem ocorrência no Submédio do Vale do São Francisco; Pragas de importância econômica para a cultura do coqueiro no Submédio do Vale do São Francisco; Pragas potenciais para a cultura do coqueiro Vale do São Francisco.bitstream/item/133821/1/ID-31376.pd

Avaliacao do grau de infestacao de mosca branca (Bemisia spp.)em plantas invasoras em areas de fruteiras irrigadas.

O presente trabalho teve como objetivo levantar plantas invasoras hospedeiras de mosca branca em fruteiras irrigadas, nos municípios de Petrolina e Lagoa Grande, em Pernambuco.No CD-ROM 28, contem o resumo expandido