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Search Results: 1 - 10 of 30129 matches for " Krystyna Gourlach;Santos "
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Efeitos da adi??o de vagens de algaroba sobre a composi??o química e a microbiota fúngica de silagens de capim-elefante
Batista, ?ngela Maria Vieira;Guim, Adriana;Souza, Iraci Saraiva;Lira, Krystyna Gourlach;Santos, Mércia Virginia Ferreira dos;Dubeux Júnior, José Carlos Batista;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000100001
Abstract: the objective of this trial was to evaluate the chemical composition and fungal microbiota of different proportions of elephantgrass and mesquite pod silages: 100:0, 67:33, 34:66, and 0:100, respectively. a complete randomized design with four replications per treatment was used. the material was ensiled in pvc silos and remained sealed during a 120-days period. after opening the silos, silage samples were collected followed by fungi isolation and identification and determination of the chemical composition of the silages. addition of mesquite pod to elephantgrass silage decreased linearly the contents of ndf, adf, and ash while the opposite was observed for dm. a total of 490 colony forming units (cfu) was isolated per gram of material and showed the following distribution: 68, 101, 261, and 58 cfu/g of silage, respectively, on 100:0, 67:33, 34:66, and 0:100 treatments. increasing the proportions of mesquite pod in the silo changed the fungi microbiota of the silages. for instance, in the treatment containing only mesquite pod silage, a greater diversity of fungi species was observed despite the lower number of cfu/g of material. conversely, the treatment with 66% of mesquite pod showed greater fungi growth and lesser fungi species variety.
Efeitos da adi o de vagens de algaroba sobre a composi o química e a microbiota fúngica de silagens de capim-elefante
Batista ?ngela Maria Vieira,Guim Adriana,Souza Iraci Saraiva,Lira Krystyna Gourlach
Revista Brasileira de Zootecnia , 2006,
Abstract: Este trabalho foi conduzido com o objetivo de avaliar o efeito da adi o de vagens de algaroba ao capim-elefante sobre a composi o química e a microbiota fúngica das silagens. Os tratamentos constaram de silagens formadas pela associa o de capim-elefante e vagens de algaroba nas seguintes propor es: 100:0; 67:33; 34:66 e 0:100. O delineamento experimental foi o inteiramente casualizado, com quatro tratamentos e quatro repeti es. As silagens foram confeccionadas em mini-silos de PVC, mantidos lacrados por 120 dias. Após abertura dos silos, foram coletadas amostras das silagens para isolamento e identifica o dos fungos e avalia o da composi o química das silagens. A adi o de vagens ao capim-elefante reduziu linearmente os teores de FDN, FDA e cinzas (MM) e aumentou o de MS. Um total de 490 unidades formadoras de col nias (UFC) foi isolado por g de material e apresentou a seguinte distribui o: 68; 101; 261 e 58 UFC/g de silagens, respectivamente, nos tratamentos 100:0; 67:33; 34:66 e 0:100. A adi o de vagens aos silos alterou a microbiota fúngica das silagens. No tratamento contendo somente silagem de algaroba, houve maior diversidade de espécies fúngicas, apesar da menor contagem de UFC/g de amostra, enquanto, no tratamento com 66% de algaroba, observaram-se maior crescimento de fungos e menor diversidade de espécies fúngicas.
The Impact of High Temperature during Growing Season on Potato Cultivars with Different Response to Environmental Stresses  [PDF]
Krystyna Rykaczewska
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.412295
Abstract: Potato crop is the fourth main food crops in the world after maize, rice and wheat. It is characterized by specific temperature requirements and develops best at about 20°C. Forecasts of global warming prompt us to study the tolerance of potato genotypes to heat during the growing season. The aim of this work was to assess the response of chosen potato cultivars to high temperature during the different stages of plant growth under conditions of good soil moisture and drought. The impact of high temperature 32°C/25°C on potato plants was determined in pot experiment in three growth stages. A main measure of tolerance of the potato cultivars to high temperature during the growing season was an evaluation of the yield in relation to the Control combination. Here we demonstrated that tested potato cultivar’s response to high temperature during the growing season is dependent on the growth stage. The earlier it occurs, the more negative its impact on the growth and yield of potatoes is.
Ultrastructural changes in chloroplasts of mesophyll cells of chlorotic and prematurely yellowed leaves of Betula pendula Rothr
Krystyna Przyby?,Krystyna Idzikowska
Acta Societatis Botanicorum Poloniae , 2003, DOI: 10.5586/asbp.2003.037
Abstract: The ultrastructure of chloroplasts was studied in mesophyll cells of the leaves of silver birch (Betula pendula) showing interveinal chlorosis or premature yellowing, in comparison with leaves without symptoms or exhibiting symptoms of natural senescence. The leaves were collected between May 26 to June 7 and additionally in the September 10-12 from the upper part of the crown, from increments of the past four years. No major difference in ultrastructure of chloroplasts was found between spongy and palisade mesophyll cells. The following senescencerelated changes were observed in chloroplasts of prematurely yellowed leaves and showing inteveinal chlorosis: reduced chloroplast size, degeneration of the membrane systems of thylakoids and increased electron density of plastoglobuli. The most electron dark globules (lipid droplets) were found together with starch grains in cells of spongy mesophyll of leaves showing interveinal chlorosis. Abnormal, spherical and rounded chloroplasts with electron-dark inside of thylakoids or the electron-dark stroma between thylakoids were found only in yellowed and chlorotic leaves in spring.
Participatory System Dynamics Modeling for Sustainable Environmental Management: Observations from Four Cases
Krystyna Stave
Sustainability , 2010, DOI: 10.3390/su2092762
Abstract: Sustainable environmental management requires a decision support approach that accounts for dynamic connections between social and ecological systems, integrates stakeholder deliberation with scientific analysis, incorporates diverse stakeholder knowledge, and fosters relationships among stakeholders that can accommodate changing information and changing social and environmental conditions. Participatory system dynamics modeling provides such a framework. It supports stakeholder learning about the system and the perspectives of other stakeholders, and can help build social capital among stakeholders. Four cases of participatory system dynamics modeling, which range from no to full participant involvement in model development, support the idea that greater social capital development results from greater participation in model development, but also suggest that even the simplest use of simulation models in a group fosters stakeholder learning about the system through surprise and discovery. To maximize the learning value of simulation models, it is important to allow enough time for debriefing the “aha!” moments that lead to curiosity about system behavior. To maximize social capital development, it is important to build enough time into the problem structuring and model conceptualization phases for stakeholders to articulate their mental models and examine those of other participants.
A New Locality of Macrogastra ventricosa (Draparnaud, 1801) (Gastropoda: Pulmonata: Clausiliidae) in Wielkopolska (Poland)
Krystyna Szybiak
Folia Malacologica , 2009, DOI: 10.2478/v10125-009-0004-1
Abstract: Macrogastra ventricosa, previously known only as subfossil in central Poland, was found in an alder forest in the erkowsko-Czeszewski Landscape Park.
An Unusual Preferences Among Regression Designs
Krystyna Maciagxxn'
The Open Statistics & Probability Journal , 2009, DOI: 10.2174/1876527000901010001]
Abstract: Consider the classical regression design with one explanatory variable taking values x = (x1 ,…, xn )' and an alternative design based on Tx, where We reveal an interesting phenomenon that the second design is better, from many reasonable points of view, than the initial one.
The Course and Didactic Results of Master's Studies in Physical Education
Krystyna Buchta
Polish Journal of Sport and Tourism , 2011, DOI: 10.2478/v10197-011-0006-6
Abstract: Introduction. The aim of the study was to analyse the effect of Physical Education (PE) studies at the Faculty of Physical Education and Sport (FPE&S) of the University of Physical Education (UPE) in Warsaw. Material and methods. The study was carried out among the students and graduates of two unified education cycles by means of the documents analysis and the diagnostic poll method with the use of a posted questionnaire. The analysis encompassed the level of preparation for undertaking the studies, academic merits, sport achievements, other experience gained by the examined in the course of the studies and the "output effect" in the form of gained competences. Results. As a result of the study, it was established that the PE studies were undertaken mostly by physically well-prepared graduates of secondary schools whose level of theoretical knowledge was quite low. In the course of the studies, the examined scored average academic merits. The studies constituted for them an opportunity to gain new competences, mainly in the field of physical education. Sporadically, students' activities were directed at educational, organisational and social spheres. Conclusions. In the light of the obtained results, amendments in the national curriculum and changes in physical education teaching methodology seem crucial. Apart from gaining competences pertaining to a particular graduate's profile, development of creative skills, and shaping the proper attitude and behaviour seem vital.
Choroba trzewna, wspó czesny obraz kliniczny i diagnostyka
Krystyna Karczewska
Pediatria Wspó?czesna , 2006,
Abstract: Celiakia jest chorob uwarunkowan genetycznie, wywo an nieprawid ow odpowiedzi immunologiczn na spo ywany gluten, zawart w nim gliadyn i inne prolaminy.
Leczenie ywieniowe w nieswoistych zapaleniach jelit u dzieci
Krystyna Grzybowska
Pediatria Wspó?czesna , 2007,
Abstract: Nieswoiste zapalenia jelit (n.z.j.) to grupa chorób o przewlek ym procesie zapalnym, w ród których najcz ciej mamy do czynienia z wrzo-dziej cym zapaleniem jelita grubego (w.z.j.g.) i chorob Le niowskiego-Crohna (ch. L-C). Obydwie choroby o nieustalonej etiopatogene-zie. Udzia czynnika ywieniowego wskazywany jest w patomechanizmie tych chorób. W leczeniu n.z.j. prócz post powania farmakologicznego wa n rol odgrywa leczenie ywieniowe, którego mo liwo ci w zale no ci od przebiegu klinicznego chorób przedstawiono w pracy.
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