1,354,137 research outputs found
Aflatoxin occurrence in goat milk and supplied concentrate feed in farms of Veneto, Trentino and Friuli Venezia Giulia
No full textAflatoxin M1 (AFM1) is a probable human hepatocarcinogen (IARC, monographs on the evaluation of carcinogenic risks to human. Vol. 56, 1993) found in milk of animals that consume feeds contaminated with aflatoxin B1 (AFB1), produced by fungi of genus Aspergillus. There is little information about goat milk: the aim of this study was to
examine the level of contamination of milk, and related concentrate feed, in goat farms of Veneto, Trentino and Friuli Venezia Giulia. In 2005 and 2006, during the lactation period, 79 samples of total daily milk and 125 concentrate feed samples
(principally maize and concentrate feeds), collected in 17 goat farms of Triveneto, were analysed for the content of AFM1 and AFB1 respectively, by HPLC technique. Concerning the milk samples, only one-third of total samples exceed the analytical reliability level (3 ppt), 14 of which
were positioned under the value of 9 ppt and only 1 sample was over the value of 27 ppt.With regard to the feed samples,
the two-thirds of total samples exceed the analytical reliability level (0.1 ppb), 54 of which had a value lower than 1 ppb and only 1 had a value higher than 10 ppb. The relation between levels of aflatoxin in milk and feeds was also considered: there is a significant correlation that confirms the role of feeds in the contamination of milk.
All the samples had values lower than the maximum limit established by Italian law concerning the content of aflatoxins
in milk for human diet and the content of aflatoxin in the concentrates for the goat diet (AFM1: 50 ppt; AFB1: 20 ppb), showing a general situation of absence of risk for animal and human health, with only few cases to keep under control. The results are in accordance with the situation found in other regions of North Italy (Regione Lombardia, 2003-2005), where, also in the dairy cow sector, there was a reduction of aflatoxin contamination risk in 2005 after two years of high levels of contamination of the maize and of the milk
The second European Regional Assembly ofthe ICCA Consortium envisions expanding membership and establishing a regional technical unit
No full textEffetto delle incertezze sulla sicurezza a stato limite ultimo nei solai composti acciaio-calcestruzzo
No full textLa Sicurezza a Stato Limite Ultimo nelleSolette Composte Acciaio-Calcestruzzo
No full textlegalmnete depositato ai sensi dl D.P.R. 3 maggio 2006 n. 25
EVALUASI STATUS KESUBURAN KIMIA TANAH PADA KAWASAN PERBUKITAN MENOREH DI DESA BIGARAN KECAMATAN BOROBUDUR KABUPATEN MAGELANG JAWA TENGAH
No full textBigaran Village, which is located in the Menoreh Hills, has a hilly topography and is dominated by dry land which is thought to be lacking in nutrients. Evaluation of soil fertility is required to diagnose nutrient problems in the soil. This research was conducted with the aim of identifying soil chemical properties, determining soil chemical fertility status, and making a map of soil chemical fertility status in Bigaran Village Research management includes field surveys, determination of sample point locations, soil sampling, laboratory analysis of soil chemical properties, and evaluation of soil chemical fertility. The research was conducted from February to March 2023. Assessment of soil fertility status based on the 1995 soil fertility technical guidelines. Representative sample points were determined purposively based on the results of overlaying thematic maps (Slope Slope Map, Land Use Map, and Soil Type Map) and obtained 13 land units. The research of results showed that the Cation Exchange Capacity (CEC) values at the study sites ranged from 12.61-27.76 me/100g, Base Saturation values (KB) from 34.96-67.88%, P2O5 HCl content 25% 20.24 -105.53 mg/100g, K2O content between 15.26-128.12 mg/100g, C-Organic content ranging from 0.48-1.35%, N-Total content 0.10-0.17%, pH content 5.78-6.49%. Of the 13 sample points tested, all showed low soil fertility status. Map of Soil Chemical Fertility Status in Bigaran Village presented at a scale of 1:12,000. Low soil fertility status is symbolized in yellow. Keywords : Fertility Status, Menoreh Hills, Bigaran Village, Map INTISARIDesa Bigaran yang berada di Perbukitan Menoreh memiliki topografi berbukit serta didominasi oleh lahan kering yang diduga minim akan unsur hara. Diperlukan evaluasi kesuburan tanah untuk mendiagnosa masalah-masalah keharaan dalam tanah. Penelitian ini dilakukan dengan tujuan untuk mengidentifikasi sifat kimia tanah, menentukan status kesuburan kimia tanah, dan membuat peta status kesuburan kimia tanah Desa Bigaran. Tata laksana penelitian meliputi survey lapangan, penentuan lokasi titik sampel, pengambilan sampel tanah, analisis laboratorium sifat kimia tanah, dan evaluasi kesuburan kimia tanah. Penelitian dilakukan pada bulan Februari sampai Maret 2023. Penilaian status kesuburan tanah berdasarkan petunjuk teknis kesuburan tanah 1995. Titik sampel pewakil ditentukan secara purposive berdasarkan hasil overlay peta tematik (Peta Kemiringan Lereng, Peta Penggunaan Lahan, dan Peta Jenis Tanah) dan didapatkan 13 satuan lahan. Hasil penelitian menunjukkan nilai Kapasitas Tukar Kation (KTK) pada lokasi penelitian berkisar antara 12,61-27,76 me/100g, nilai Kejenuhan Basa (KB) dari 34,96-67,88%, kandungan P2O5 HCl 25% 20,24-105,53 mg/100g, kandungan K2O antara 15,26-128,12 mg/100g, kandungan C-Organik berkisar antara 0,48-1,35%, kandungan N-Total 0,10-0,17%, kandungan pH 5,78-6,49% Dari 13 titik sampel yang diuji, semua menunjukan status harkat kesuburan tanah rendah. Peta Status Kesuburan Kimia Tanah Desa Bigaran disajikan dengan skala 1:12.000. Status kesuburan tanah rendah disimbolkan dengan warna kuning. Kata kunci : Status Kesuburan, Perbukitan Menoreh, Desa Bigaran, Pet
Aflatoxin occurrence in milk and supplied concentrates of goat farms of north- eastern Italy
No full textBACKGROUND: There is little information about the occurrence of aflatoxin M-1 in goat milk. A survey involving 17 dairy goat farms of north-eastern Italy was completed during 2005 and 2006, in order to evaluate the prevalence of milk contamination and its relationship with type and level of concentrate supplied.RESULTS: 132 concentrate and 85 milk samples were collected during five farm visits and analysed for aflatoxins. Aflatoxin B-1 (AFB(1)) was >0.1 mu g kg(-1) in two-thirds of the feeds and >5 mu g kg(-1) in nine. Contamination was higher in maize than in other pure feeds (median: 0.8 versus 0.1 mu g kg(-1)); complementary feeds showed intermediate values. Aflatoxin M-1 (AFM(1)) was >3 ng kg(-1) in one-third of milks and >25 ng kg(-1) in three. All the milk samples were below EU statutory limits. The farm ranks for milk AFM(1) level and the peak of concentrate AFB(1) contamination were significantly correlated (0.642).CONCLUSIONS: Risk to human health was generally found to be absent, with only a few cases involving feed contamination to be monitored. The main aflatoxin risk for goat milk could arise from maize and maize-based concentrates in the more intensive breeding conditions
Numerical Approach to Viscoelastic Analysis of Concrete Structures Using Equilibrium and FEM
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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