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Query: "author" (Mirjana %C5%BDumer-Pregelj) .

41 - 44 / 44
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41.
Začetni tečaj enteralne in parenteralne prehrane
Mirjana Rajer, 2006, professional article

Published in DiRROS: 31.08.2018; Views: 2554; Downloads: 647
.pdf Full text (849,02 KB)

42.
Pljučni rak kot poklicna in socialna bolezen
Matjaž Zwitter, Mirjana Rajer, Borut Rajer, 2009, professional article

Abstract: Če izvzamemo jasno povezavo s kajenjem, so drugim dejavnikom, ki so pomembni za preventivo, diagnostiko in zdravljenje pljučnega raka, doslej namenjali malo pozornosti. Predstavljamo raziskavo, ki se je osredotočila na socialni položaj bolnikov. Anketo je izpolnilo 248 zaporednih bolnikov s pljučnim rakom, ki smo jih primerjali s kontrolno skupino 244 bolnikov z rakom debelega črevesa. Obe skupini sta bili primerljivi po spolu in starosti. Anketa je zajela podatke o rojstnem kraju, izobrazbi, kajenju, prehranjevalnih navadah, telesni teži in višini, poklicu, bivalnih razmerah in družinskih prihodkih. Kot smo lahko pričakovali, je bilo v skupini s pljučnim rakom značilno več sedanjih ali bivših kadilcev. Prav tako je bilo med bolniki s pljučnim rakom v primerjavi z rakom debelega črevesa statistično značilno več priseljencev iz drugih delov nekdanje Jugoslavije ter značilno večji odstotek delavcev v »umazanih«1 poklicih, še posebno pri obdelavi kovin. Študija potrjuje, da je pljučni rak pogostejši pri osebah iz nižjih socialnih slojev, in kaže, da je onesnaženo delovno okolje dejavnik, ki ob kajenju dodatno prispeva k nastanku bolezni.
Published in DiRROS: 31.08.2018; Views: 2825; Downloads: 765
.pdf Full text (252,33 KB)

43.
Annual cambial rhythm in Pinus halepensis and Pinus sylvestris as indicator for climate adaptation
Peter Prislan, Jožica Gričar, Martin De Luis, Klemen Novak, Edurne Martinez Del Castillo, Uwe Schmitt, Gerald Koch, Jasna Štrus, Polona Mrak, Magda Tušek-Žnidarič, Katarina Čufar, 2016, original scientific article

Abstract: To understand better the adaptation strategies of intra-annual radial growth in Pinus halepensis and Pinus sylvestris to local environmental conditions, we examined the seasonal rhythm of cambial activity and cell differentiation at tissue and cellular levels. Two contrasting sites differing in temperature and amount of precipitation were selected for each species, one typical for their growth and the other represented border climatic conditions, where the two species coexisted. Mature P. halepensis trees from Mediterranean (Spain) and sub-Mediterranean (Slovenia) sites, and P. sylvestris from sub-Mediterranean (Slovenia) and temperate (Slovenia) sites were selected. Repeated sampling was performed throughout the year and samples were prepared for examination with light and transmission electron microscopes. We hypothesized that cambial rhythm in trees growing at the sub-Mediterranean site where the two species co-exist will be similar as at typical sites for their growth. Cambium in P. halepensis at the Mediterranean site was active throughout the year and was never truly dormant, whereas at the sub-Mediterranean site it appeared to be dormant during the winter months. In contrast, cambium in P. sylvestris was clearly dormant at both sub-Mediterranean and temperate sites, although the dormant period seemed to be significantly longer at the temperate site. Thus, the hypothesis was only partly confirmed. Different cambial and cell differentiation rhythms of the two species at the site where both species co-exist and typical sites for their growth indicate their high but different adaptation strategies in terms of adjustment of radial growth to environmental heterogeneity, crucial for long-term tree performance and survival.
Keywords: Aleppo pine, Pinus halepensis, Scots pine, Pinus sylvestris, cambium, light microscopy, Mediterranean environment, temporate environment, transmission electron microscopy, xylem
Published in DiRROS: 12.07.2017; Views: 3128; Downloads: 1425
.pdf Full text (4,63 MB)
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