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761 - 770 / 2000
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761.
Fate and effects of cytostatic pharmaceuticals in the environment and the identification of biomarkers for and improved risk assessment on environmental exposure
Metka Filipič, 2014, treatise, preliminary study, study

Abstract: CytoThreat (www.cytothreat.eu) project addresses the needs of the European society for assessing the risks associated with the release of pharmaceuticals into environment focusing on cytostatic pharmaceuticals. The mechanisms of action of most of the anticancer drugs are by interference with genetic material and cell signalling, which are very similar in all organisms and theoretically exposure to anticancer drug residues may affect also nontarget organisms. The aims are to provide new analytical methods needed for to determine the actual environmental exposure of these drugs, their metabolites and transformation products detection, to provide missing ecotoxicity data needed for accurate environmental risk assessment and identify biomarkers of delayed effects that may be used for development of early warning systems.
Keywords: health risks, cytostatics
Published in DiRROS: 03.09.2024; Views: 208; Downloads: 136
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762.
Prepelica (Coturnix coturnix), kobiličar (Locustella naevia), bičja trstnica (Acrocephalus schoenobaenus) na Ljubljanskem barju
Davorin Tome, Al Vrezec, Špela Ambrožič Ergaver, Andrej Kapla, 2015, treatise, preliminary study, study

Abstract: V okviru projekta Ljudje za barje, ohranjanje biotske pestrosti na Ljubljanskem barju (LJUBA), Program Norveškega finančnega mehanizma 2009-2014 in Program finančnega mehanizma EGP 2009-2014 smo v letu 2015 za naročnika Zavod republike Slovenije za varstvo narave kvantitativno popisali (izhodiščni monitoring) prepelico (Coturnix coturnix), kobiličarja (Locustella naevia) in bičjo trstnico (Acrocephalus schoenobaenus) na območju Ljubljanskega barja. Terensko delo je potekalo po metodi, ki nam je omogočila neposredno primerjavo rezultatov s podatki dobljenimi pred 20 leti v obdobju 1989 do 1996. Na izbrani površini 67 kvadratov smo prešteli 39 kličočih samcev prepelice, kar je za 87% manj kakor na primerljivi površini pred 20 leti. Vrsto smo odkrili na 23 kvadratih, kar je za 57% manj kakor pred 20 leti. Ob upoštevanju vseh možnih objektivnih in subjektivnih dejavnikov, ki vplivajo na rezultat štetja ocenjujemo, da se je velikost in razširjenost populacije prepelice v zadnjih 20 letih zmanjšala za več kakor za polovico. Vrsta je na Ljubljanskem barju zelo ogrožena in lahko v kratkem izgine kot gnezdilka. Na izbrani površini 67 kvadratov smo prešteli 31 pojočih kobiličarjev, kar je za 31% manj kakor na primerljivi površini pred 20 leti. Vrsto smo odkrili na 16 kvadratih, kar je za 16% manj kakor pred 20 leti. Ob upoštevanju vseh možnih objektivnih in subjektivnih dejavnikov, ki vplivajo na rezultat štetja ocenjujemo, da se velikost populacije kobiličarja v zadnjih 20 letih verjetno ni spremenila, nekoliko se je spremenilo območje njegovega pojavljanja. Kljub temu, zaradi relativno majhne površine kjer se pojavlja, ocenjujemo, da je kobiličar na Ljubljanskem barju ogrožena vrsta. Na izbrani površini 67 kvadratov smo prešteli 52 pojočih bičjih trstnic, kar je za 8% več kakor na primerljivi površini pred 20 leti. Vrsto smo odkrili na 20 kvadratih, kar je za 18% več kakor pred 20 leti. Ob upoštevanju vseh možnih objektivnih in subjektivnih dejavnikov, ki vplivajo na rezultat štetja ocenjujemo, da se velikost populacije bičje trstnice v zadnjih 20 letih verjetno ni spremenila, nekoliko se je spremenilo območje njenega pojavljanja. Kljub temu, zaradi relativno majhne površine kjer se pojavlja, ocenjujemo, da je bičja trstnica na Ljubljanskem barju ogrožena vrsta. Največja vokalna aktivnost prepelic je bila zvečer, le malo manjša zgodaj zjutraj. Po sedmi uri zjutraj je aktivnost opazno manjša in lahko vpliva na rezultate monitoringa. Prepelice so pogosto spreminjale položaj od koder pojejo, kar ima prav tako lahko vpliv na rezultate monitoringa. Za bolj natančen nadzor populacij vseh treh vrst predlagamo, da se obstoječi monitoring ptic kmetijske krajine na območju Ljubljanskega barja razširi z desetimi transekti. Metoda popisovanja in obdelave podatkov v obstoječem monitoringu sta ustrezni za kobiličarja in bičjo trstnico, za prepelico predlagamo nekaj sprememb.
Keywords: ptice, zavarovana območja, varstvo narave
Published in DiRROS: 03.09.2024; Views: 219; Downloads: 2265
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763.
Development of LAMP based protocol for accurate, reliable, fast and affordable diagnostics of Candidatus Phytoplasma solani : Euphresco success strory
Marina Dermastia, treatise, preliminary study, study

Abstract: Phytoplasmas are cell-wall-free plant pathogenic bacteria; they have a broad range of plant hosts and diseases of many important crops are associated with these pathogens. At least ten phytoplasma ribosomal subgroups have been associated with grapevine yellows diseases, which have great economic impact on viticulture. In Europe, the main phytoplasmas associated with grapevine yellows are the causal agent of flavescence dorée and ‘Candidatus Phytoplasma solani’, which cause bois noir.
Keywords: phytoplasmas, grapevine yellows diseases, LAMP, real-time PCR
Published in DiRROS: 03.09.2024; Views: 255; Downloads: 161
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764.
Monitoring populacij izbranih ciljnih vrst hroščev v letih 2016 in 2017 : prvo delno poročilo
Al Vrezec, Špela Ambrožič Ergaver, Andrej Kapla, treatise, preliminary study, study

Abstract: V končnem poročilu so predstavljeni rezultati terenskih raziskav štirih varstveno pomembnih vrst hroščev v Sloveniji v letu 2016. Za močvirskega krešiča (Carabus variolosus), rogača (Lucanus cervus), alpskega kozlička (Rosalia alpina) in bukovega kozlička (Morimus funereus) je v Sloveniji že vzpostavljena shema populacijskega in distribucijskega monitoringa. V tem poročilu so podani rezultati popisov populacijskega in distribucijskega monitoringa v letu 2016. V tem letu smo izvedli vzorčenja za populacijski monitoring za močvirskega krešiča (deseto snemanje), rogača (deseto snemanje), alpskega (deveto snemanje) in bukovega kozlička (osmo snemanje) ter vzorčenja za distribucijski monitoring za močvirskega krešiča in rogača (četrto leto v tretjem petletnem ciklusu). Dodatno so glede na najnovejše raziskave podani predlogi izboljšanja sheme monitoringa za rogača in alpskega kozlička. V poročilu so predstavljeni rezultati popisa v letih 2016 in 2017 za dopolnitev strokovnih podlag za puščavnika (Osmoderma eremita) in škrlatnega kukuja (Cucujus cinnaberinus). Za obe vrsti sta podani tudi predlogi sheme monitoringa. V okviru naloge smo opravili pregled vodnega telesa v Spodnjem Krapju in pet vodnih teles ob reki Muri za namene ugotavljanja prisotnosti ovratniškega plavača (Graphoderus bilineatus). Vrsto smo v letu 2017 zopet potrdili ob reki Muri in sicer v Murski šumi, kar je nova lokacija za vrsto v Sloveniji, ne pa tudi v mrtvici pri Spodnjem Krapju, ki je bila do nedavna edina recentna lokaliteta za vrsto pri nas, kjer je bil ovratniški plavač potrjen v letu 2011.
Keywords: hrošči, monitoring, ekologija
Published in DiRROS: 03.09.2024; Views: 293; Downloads: 727
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765.
Transformacijska matrika za statično korekcijo anemometra na boji Vidi : študija
Vlado Malačič, treatise, preliminary study, study

Keywords: morje, Tržaški zaliv, umetni podvodni grebeni, podvodni grebeni, študije, ekološki parametri, resuspenzija, numerična analiza, tokovanje
Published in DiRROS: 03.09.2024; Views: 220; Downloads: 1817
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766.
Effect of Ti and S content on the properties and machinability of low-carbon ferritic–pearlitic steel
Boštjan Arh, Franc Tehovnik, Franci Vode, Bojan Podgornik, 2024, original scientific article

Abstract: This research was focused on the effect of Ti and S content on the formation of non-metallic inclusions and their influence on the mechanical properties and machinability of low-carbon ferritic– pearlitic steels. An analysis and classification of the non-metallic inclusions were carried out. The tensile strength and impact toughness were determined from samples taken in the rolling direction. Machinability investigations were carried out on a CNC turning machine and by analyzing the surface roughness. TiO-TiN inclusions are present in steels with an increased Ti content. In these steels, the hardness, tensile strength, and cutting forces increase with a higher proportion of Ti. In the second group of steels with increased contents of S, Al, and Ca, MnS and CaO-Al2O3-MnS non-metallic inclusions are formed. As the S content increases, the tensile strength and cutting forces decrease, while the impact toughness increases. In steels with added Ti, the This research was focused on the effect of Ti and S content on the formation of non-metallic inclusions and their influence on the mechanical properties and machinability of low-carbon ferritic– pearlitic steels. An analysis and classification of the non-metallic inclusions were carried out. The tensile strength and impact toughness were determined from samples taken in the rolling direction. Machinability investigations were carried out on a CNC turning machine and by analyzing the surface roughness. TiO-TiN inclusions are present in steels with an increased Ti content. In these steels, the hardness, tensile strength, and cutting forces increase with a higher proportion of Ti. In the second group of steels with increased contents of S, Al, and Ca, MnS and CaO-Al2O3-MnS non-metallic inclusions are formed. As the S content increases, the tensile strength and cutting forces decrease, while the impact toughness increases. In steels with added Ti, the machining is more difficult, but a finer surface is achieved after turning, while a higher S content results in an increased fraction of softer sulfide inclusions, which reduce the cutting forces but also result in a reduced surface quality. turning, while a higher S content results in an increased fraction of softer sulfide inclusions, which reduce the cutting forces but also result in a reduced surface quality.
Keywords: non-metallic inclusions, mechanical properties, machinability, surface roughness
Published in DiRROS: 03.09.2024; Views: 308; Downloads: 472
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767.
Dissemination, communication, exploitation - update : Deliverable 9.4
Ana Rotter, Nicole Aberle-Malzahn, Antonella Leone, 2018, treatise, preliminary study, study

Abstract: The objective of the GoJelly project is to develop, test and promote a gelatinous solution to microplastic pollution by developing a TRL 5-6 prototype microplastics filter using jellyfish mucus as the raw material. In doing so, the consortium addresses two environmental issues - coastal pollution of both jellyfish and microplastics. This innovative approach will ultimately lead to less plastic in the ocean, higher demand (and thereby competitive prices) for jellyfish raw material to fill the "mucus-need" by filter developers, and in turn more jobs for commercial fishers in off-seasons. The byproducts of the GoJelly biomass have other uses as well, ensuring that GoJelly also delivers a green innovation, resulting in novel, valuable resource for the food and feed industry, in cosmetics as well as agro-biological fertilizer for organic farming. The GoJelly prototype products will be tested and demonstrated in three different European seas (Norwegian, Baltic and Mediterranean), by a range of stakeholders, including commercial fishers and industry partners. Tying it together, the project will also ensure the possibilities for broader European promotion and utilization of GoJelly at the local, regional and global level by delivering a socio-ecological methodological toolbox for forming and implementing policies. An interdisciplinary and international consortium consisting of technology developers, business analysts, fishing companies, research institutes, and both natural and social scientists will realize GoJelly, and will ensure the uptake of GoJelly products by industry and policy makers.
Published in DiRROS: 03.09.2024; Views: 256; Downloads: 743
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768.
Redčenje onesnaženih meteornih voda s podmorskimi prelivnimi izpusti v Piranskem zalivu : elaborat
Vlado Malačič, 2019, treatise, preliminary study, study

Abstract: Javno podjetje Okolje Piran, d.o.o je soočeno s fekalno onesnaženimi meteornimi vodami. Ta pojav je prisoten ob izrazitejših nalivih v vseh letnih časih, do izraza pa seveda pride v poletnem obdobju, ko so v Piranskem zalivu prisotni kopalci in se izvajajo številne druge rekreativne dejavnosti. Na predlog direktorja podjetja je enota Morske biološke postaje Nacionalnega inštituta za biologijo sestavila ta elaborat, ki je v pomoč pri sprejemanju odločitve, ali bi npr. s podmorskimi izpusti uspeli v zadostni meri zmanjšati onesnaženje (registriranih) kopališč zaradi onesnaženih meteornih voda. V obravnavi je predvsem del severne obale Piranskega zaliva, to je območje med vzhodno stranjo nekdanjega skladišča soli (pred poslopjem nekdanje uprave podjetja Droga) in kopališčem pred hotelom Emona kompleksa Bernardin). Smiselna je proučitev postavitev podmorskih prelivnih cevi na treh obrežnih lokacijah obstoječih izpustov meteornih voda. Cevi bi naj peljale onesnaženo meteorno vodo po morskem dnu (malo nad njim) dovolj daleč proč od obale. Po možnosti bi se naj cevi zaključite z difuzorjem. Slednji je lahko zelo enostavno izveden, lahko pomeni zgolj bočno navrtan poslednji del/segment izpustne cevi in zaprt konec cevi. Bočne odprtine, ki so navrtane izmenično na eni in drugi strani izpustne cevi, naj bodo bistveno manjše od premera cevi, a hkrati ne premajhne. Izkušnje in izračuni kažejo, da je za difuzor smiselno navrtati izpustno cev premera 0,5 – 0,6 m z odprtinami premera 0,1 m. Njihovo število in razmak se natančneje določijo s hidravličnim izračunom izpusta (Malačič, 2001), ki smo ga pred desetletji naredili za piranski komunalni izpust, pa tudi z oceno začetnega (inicialnega) redčenja (=mešanja) izpuščene vode z morsko vodo. Podobne izračune inicialnega redčenja smo pred desetletji naredili tudi za Koprski zaliv (Malačič in Potočnik, 1998; Malačič, 1999a; Malačič, 1999b), ko so bile proučevane možnosti za podmorski izpust odplak.
Keywords: poročila, morje, meteorna voda, onesnaženje, Piranski zaliv
Published in DiRROS: 03.09.2024; Views: 254; Downloads: 2802
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769.
Preparation of reference material for phytoplasma molecular testing ʼCandidatus Phytoplasma solaniʼ : technical innovation factsheet
Tanja Dreo, Špela Alič, Marina Dermastia, treatise, preliminary study, study

Abstract: The important economic sector of world grapevine production of 74 million tons is threatened by several grapevine yellows diseases associated with the presence of phytoplasmas. There is a lack of availability of well-characterized and certified material suitable for use as reference positive controls in different diagnostic schemes, validation studies, performance studies and proficiency tests, which are all part of the management programs for fast and accurate detection of grapevine yellows phytoplasmas.
Keywords: reference material, detection, plant pathogen, digital droplet PCR
Published in DiRROS: 03.09.2024; Views: 244; Downloads: 117
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770.
Obvladovanje hruševega ožiga (Erwinia amylovora (Burrill) Winslow et al.)
Janja Lamovšek, Alenka Ferlež Rus, Jože Miklavc, Tanja Dreo, Primož Pajk, treatise, preliminary study, study

Abstract: Prvi pojav hruševega ožiga pri nas je uradno zabeležen leta 2001. Prvi večji izbruh bolezni v Sloveniji je bil v letu 2003, ko se je hrušev ožig razširil po celotni Gorenjski in v okolici Maribora. Ob drugem večjem izbruhu, ki se je zgodil leta 2007, se je bolezen razširila tudi proti jugu in vzhodu države. Hrušev ožig se je ustalil na Gorenjskem, Koroškem, na območju Maribora in na Notranjskem. Kasneje sta bili iz varovanega (neokuženega) območja izločeni še občini Lendava ter Renče-Vogrsko (južno od avtoceste H4).
Keywords: hrušev ožig
Published in DiRROS: 03.09.2024; Views: 264; Downloads: 705
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