925 research outputs found

    Histological type and typing of breast carcinomas and the WHO classification changes over time.

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    The World Health Organization's new classification of breast tumors has just been published. This review aims to examine the morphological categorization of breast carcinomas which is still principally based on histological features and follows the traditions of histological typing. It gives a subjective and critical view on the WHO classifications and their changes over time, and describes the changes related to some of the most common or challenging breast carcinomas: in situ carcinomas, invasive breast carcinomas of no special type, lobular, cribriform, tubular, mucinous, papillary, metaplastic carcinomas and carcinomas with medullary pattern and those with apocrine differentiation are discussed in more details. Although the 5th edition of the classification is not perfect, it has advantages which are mentioned along with problematic issues of classifications

    Effects of soil types and nitrogen fertilizer doses on some chemical characteristics of tomato, sweet corn and pepper

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    Our research project was aimed at the description of the nitrogen and carbon flows in soils and vegetable cultures. As a part of this project we made our experiments in the nursery garden of our Institute (Kecskemét College, Faculty of Horticulture), using irrigated and fertilized lysimeters. Three different soil types (sandy, alluvial and chernozem soils) were studied. At constant phosphorus and potassium fertilizer doses (P6o:K]2o), four different nitrogen doses (0, 60, 120 and 180 kg.ha-1 N) were used. Total N levels and other parameters were determined in two harvesting times in tomato (type K-549) and sweet corn (variety 'Spirit') as well. According to other parameters of the tested vegetables, organic acid contents increased in tomato berry on sandy and alluvial soils at higher nitrogen fertilizer doses. Sugar content was higher in tomato grown on alluvial and chernozem soils. Nitrogen doses decreased sugar contents in chernozem in the case of both vegetables. The increase in vitamin C levels of tomato in sandy soil was slight due to higher nitrogen doses. The highest sugar content in sweet corn was measured due to farmyard manure treatment. According to green and red pepper test plants, the effect of nitrogen fertilizer (ammonium-nitrate) and barnyard manure on crop mass seemed to be highly positive in our experiments

    Effects of soil types and nitrogen fertilizer doses on some chemical characteristics of tomato, sweet corn and pepper

    Get PDF
    Our research project was aimed at the description of the nitrogen and carbon flows in soils and vegetable cultures. As a part of this project we made our experiments in the nursery garden of our Institute (Kecskemét College, Faculty of Horticulture), using irrigated and fertilized lysimeters. Three different soil types (sandy, alluvial and chernozem soils) were studied. At constant phosphorus and potassium fertilizer doses (P6o:K]2o), four different nitrogen doses (0, 60, 120 and 180 kg.ha-1 N) were used. Total N levels and other parameters were determined in two harvesting times in tomato (type K-549) and sweet corn (variety 'Spirit') as well. According to other parameters of the tested vegetables, organic acid contents increased in tomato berry on sandy and alluvial soils at higher nitrogen fertilizer doses. Sugar content was higher in tomato grown on alluvial and chernozem soils. Nitrogen doses decreased sugar contents in chernozem in the case of both vegetables. The increase in vitamin C levels of tomato in sandy soil was slight due to higher nitrogen doses. The highest sugar content in sweet corn was measured due to farmyard manure treatment. According to green and red pepper test plants, the effect of nitrogen fertilizer (ammonium-nitrate) and barnyard manure on crop mass seemed to be highly positive in our experiments

    The impact of potassium fertilization on development and magnesium content of celery

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    Our experiments were carried out in 2017, in our study garden. Celery test plant was used, in lysimeter-type, large-sized breeding pots, in four series. Four different treatments of potassium fertilizer and manure was used. The results show that potassium fertilization in celery test plants increased potassium in a dose-dependent manner. Potassium fertilizer decreased magnesium nutrient content in the leaves and roots. Our results call attention for magnesium supplementation in parallel with potassium fertilization. Positive effect of potassium on tuber growing was also shown. Total plant weight was the highest after the organic manure treatment

    Results analysis of irrigation water located mainly in county Bács-Kiskun

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    Ground water samples, collected mainly in Kecskemét and its outskirts, were analysed in the laboratory of Faculty of Horticulture (Kecskemét College). Depending on the depth three categories of the sprinkling water samples were formed: 10-30, 31-70 and 71-275 m, respectively. Chemical analysis of 103 water samples showed the decrease in the salt content with deepness (conductivity (EC) decreased from 1116 to 682 pS.cm' 1 in the deepest groundwater samples). It was the result of the decrease primarily in sodium, hydro-carbonate and chloride contents in the samples. Acidity and alkalinity of the samples didn't change with deepness considerably in our samples. The levels of nitrogenous and phosphorous ions were low in almost all water samples. Ferrous, manganese and arsenic content was the highest in the middle deep water region (31-70 m depth). These results may reveal problems in the application of these water sources in agriculture, mainly in growing and irrigation because of high salt concentration, principally thanks to hydro carbonate and metallic ions. Acidic pre-treatment of these irrigation waters seems to be crucial

    Investigation of Humus and Nitrate Content of Soil with Special Reference to the Nitrate Sensitivity

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    Horticultural production is of major importance in our region, as it contributes significantly to the supply of fruit and vegetables consumption of the population of the country. On soils with lower fertility and lower organic matter content, repeated nitrogen supplementation is essential during vegetation. However, the application of nitrogen in many areas is regulated. Among the most important physical and chemical properties of the soil, we investigated the organic matter and nitrate contents and followed their correlation, especially in the case of vineyards and fruit plantations. In three consecutive years, we determined the distribution of nitrate content and analyzed the risk of high nitrate levels in the surrounding soils. We suggest, that organic fertilization is extremely important in sandy soils to balance nitrate and other nutrient levels in the soil

    Results analysis of irrigation water located mainly in county Bács-Kiskun

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    Ground water samples, collected mainly in Kecskemét and its outskirts, were analysed in the laboratory of Faculty of Horticulture (Kecskemét College). Depending on the depth three categories of the sprinkling water samples were formed: 10-30, 31-70 and 71-275 m, respectively. Chemical analysis of 103 water samples showed the decrease in the salt content with deepness (conductivity (EC) decreased from 1116 to 682 pS.cm' 1 in the deepest groundwater samples). It was the result of the decrease primarily in sodium, hydro-carbonate and chloride contents in the samples. Acidity and alkalinity of the samples didn't change with deepness considerably in our samples. The levels of nitrogenous and phosphorous ions were low in almost all water samples. Ferrous, manganese and arsenic content was the highest in the middle deep water region (31-70 m depth). These results may reveal problems in the application of these water sources in agriculture, mainly in growing and irrigation because of high salt concentration, principally thanks to hydro carbonate and metallic ions. Acidic pre-treatment of these irrigation waters seems to be crucial
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