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83. Naša iskustva sa 99 MTC- glukoheptonatom kao markerom plučnog karcinomaFranc Fazarinc, Peter Predič, 1984, professional article Abstract: Akumulacija 99 mTc-glukoheptonata u plućima analizirana je kod 30 bolesnika, starih od 47-85 godina. Aplicirano je 15-20 mCi Tc-glukoheptonata. Scintigrafija je napravljena 1 sat (rani scintigram) i 5 sati (kasni scintigram) nakon injekcije pomoću gama kamere. Pretraga je izvršena kod 14 bolesnika sa malignomom pluća, kod 9 bolesnika sa akutnom bakterijalnom pneumonijom, kod 6 bolesnika sa Tbc. pulm. chron. i kod 5 osoba bez plućne bolesti. Akumulacija Tc-glukoheptonata je izražena kao kvocijent između aficiranog i neaficiranog ekvilociranog parenhima na kontralateralnoj strani. Srednja vrijednost kvocijenata, nađena kod primarnog plućnog raka, signifikantno je viša (1,28 +/- 0,21) od one kod kronične Tbc (0,85 +/- 0,18) i kod bakterijalne pneumonije (1,08 +/- 0,29). Rasip reyultata kvocijenta kasnijih scintigrama je manji. Rezultat t-testa karcinomske grupe prema grupi sa Tbc. pulm. chron. (t=4,23, p<0,0001) impresivniji je od onoga prema bakterijalnoj pneumoniji (t=2,035, p - 0,05). Zaključujemo da scintigrami pluća, napravljeni sa 99m Tc-glukoheptonatom ukazuju na mogučnost upotrebe tog agensa kao screening metode za otkrivanje primarnog plućnog karcinoma.
Published in DiRROS: 14.09.2023; Views: 214; Downloads: 55
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87. Colorimetric cutoff indication of relative humidity based on selectively functionalized mesoporous silicaErika Švara Fabjan, Peter Nadrah, Anja Ajdovec, Matija Tomšič, Goran Dražić, Matjaž Mazaj, Nataša Zabukovec Logar, Andrijana Sever Škapin, 2020, original scientific article Abstract: We present a novel % cutoff concept of colorimetric indication of relative humidity based on dye dissolution in condensed water in capillaries of selectively functionalized mesoporours host SiO2 material. Consistently high levels of indoor air humidity induces mold and algae growth which represent a potential risks for human health and have deteriorating effect on walls as well. Simple localized humidity detection of high humidity with naked eye especially at places with low air circulation, where growth of mold usually starts first, is therefore highly desirable. The reporting dye was integrated in the non-functionalized mesoporous silica matrix with different pore diameters and selective-functionalized mesoporous silica material. After exposure to the environment of different air humidities the dye dissolved in water causing color change of adsorbent. With the use of adsorbents with different mesopore diameters high ability to tune the value of relative humidity when complete capillary condensation occurred was achieved. Materials with pore diameters of 3.0%nm, 3.5%nm and 7.0%nm exhibit gradual color change when reaching relative humidity up to 55, 79 and 88 RH% respectively. After selective methylation of the material with 7.0%nm pore diameter, non-gradual cutoff color change was achieved. Sample exhibited color change at narrow range of relative humidity (cutoff color change). Due to selective functionalized outer surface the dye dissolution occur only in condensed water in pores and therefore provide colorimetric indication only in this range. Selectively modified silica material has a great potential for a straightforward detection of high humid environment.
Keywords: turn-on colorimetric probe, selective functionalization, mesoporous silica, relative humidity, capillary condensation
Published in DiRROS: 05.09.2023; Views: 302; Downloads: 223
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88. Monitoring and control of forest seedling quality in EuropeMilan Mataruga, Branislav Cvjetković, Bart De Cuyper, Ina Aneva, Petr Zhelev, Pavel Cudlin, Marek Metslaid, Ville Kankaanhuhta, Catherine Collet, Peter Annighöfer, Gregor Božič, Hojka Kraigher, 2023, original scientific article Abstract: The relationship between the quality of forest seedlings and their outplanting survival and growth has long been recognized. Various attributes have been proposed to measure the quality of planted seedlings in forest regeneration projects, ranging from simple morphological traits to more complex physiological and performance attributes, or a combination thereof. However, the utility and meaning of seedling quality attributes can differ significantly among regions, nursery practices, site planting conditions, species and the establishment purpose. Here, forest scientists compiled information using a common agreed questionnaire to provide a review of current practices, experiences, legislation and standards for seedling quality across 23 European countries.
Large differences exist in measuring seedling quality across countries. The control of the origin of seed and vegetative material (genetic component of plant quality), and control of pests and diseases are common practices in all countries. Morphological attributes are widely used and mandatory in most cases. However, physiological attributes are hardly used at the operative level and mainly concentrated to Fennoscandia. Quality control legislation and seedling quality standards are less strict in northern European countries where seedling production is high, and quality control relies more on the agreements between producers and local plant material users. In contrast, quality standards are stricter in Southern Europe, especially in the Mediterranean countries.
The control of seedling quality based on plantation and reforestation success is uncommon and depends on the conditions of the planting site, the traditional practices and the financial support provided by each country. Overall, European countries do not apply the “target seedling concept” for seedling production except for seed origin. Seedling production in many countries is still driven by traditional “know-how” and much less by scientific knowledge progress, which is not adequately disseminated and transferred to the end-users.
Our review highlights the need for greater harmonization of seedling quality practices across Europe and the increased dissemination of scientific knowledge to improve seedling quality in forest regeneration activities.
Keywords: forest nursery, forestation, legislation, morphological and physiological quality, standards, forest reproductive material, FRM
Published in DiRROS: 04.09.2023; Views: 307; Downloads: 161
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89. DynamoRep : trajectory-based population dynamics for classification of black-box optimization problemsGjorgjina Cenikj, Gašper Petelin, Carola Doerr, Peter Korošec, Tome Eftimov, 2023, published scientific conference contribution Keywords: black-box single-objective optimization, optimization problem classification, problem representation, meta-learning
Published in DiRROS: 30.08.2023; Views: 328; Downloads: 224
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