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  • Akademiai Kiado Zrt.  (4)
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  • 1
    Online Resource
    Online Resource
    Optimization of triacetylfusarinine C and ferricrocin productions in Aspergillus fumigatus
    Akademiai Kiado Zrt. ; 2014
    In:  Acta Microbiologica et Immunologica Hungarica Vol. 61, No. 2 ( 2014-06-1), p. 107-119
    Details
    In: Acta Microbiologica et Immunologica Hungarica, Akademiai Kiado Zrt., Vol. 61, No. 2 ( 2014-06-1), p. 107-119
    Abstract: Iron is an essential element for all microorganisms. Bacteria and fungi produce versatile siderophores for binding and storing this essential transition metal when its availability is limited in the environment. The aim of the study was to optimize the fermentation medium of Aspergillus fumigatus for siderophore production. Triacetyl-fusarinine C and ferricrocin yields were dependent on glucose and glycine supplementations as well as the initial pH of the culture media. The optimal fermentation medium for triacetylfusarinine C production contained 8% glucose, 0.4% glycine and the initial pH was set to 5.9. Meanwhile, maximal ferricrocin yields were recorded in the presence of 10% glucose, 0.5% glycine and at an initial pH of 7.4. Under optimized fermentation conditions, the yields for triacetylfusarinine C and ferricrocin increased up to 2.9 g/l culture medium and 18.9 mg/g mycelium, respectively.
    Type of Medium: Online Resource
    ISSN: 1217-8950 , 1588-2640
    URL: Article
    DOI: 10.1556/amicr.61.2014.2.2
    Language: Unknown
    Publisher: Akademiai Kiado Zrt.
    Publication Date: 2014
    detail.hit.zdb_id: 2110470-0
    SSG: 12
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Pediatric myocarditis: A sentinel of non-cardiac chronic diseases?
    Akademiai Kiado Zrt. ; 2014
    In:  Interventional Medicine and Applied Science Vol. 6, No. 4 ( 2014-12-1), p. 154-159
    Details
    In: Interventional Medicine and Applied Science, Akademiai Kiado Zrt., Vol. 6, No. 4 ( 2014-12-1), p. 154-159
    Type of Medium: Online Resource
    ISSN: 2061-1617 , 2061-5094
    URL: Article
    DOI: 10.1556/imas.6.2014.4.3
    Language: Unknown
    Publisher: Akademiai Kiado Zrt.
    Publication Date: 2014
    detail.hit.zdb_id: 2573851-3
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  • 3
    Online Resource
    Online Resource
    A talaj fixált ammónium-ion tartalmának hatása a talajvíz tisztulási folyamataira a szennyezőforrás felszámolását követően települési környezetben
    Akademiai Kiado Zrt. ; 2020
    In:  Agrokémia és Talajtan Vol. 69, No. 1-2 ( 2020-11-28), p. 55-71
    Details
    In: Agrokémia és Talajtan, Akademiai Kiado Zrt., Vol. 69, No. 1-2 ( 2020-11-28), p. 55-71
    Abstract: Growing NH 4 + content of groundwater results in increasing exchangeable and fixed ammonium ion content of the soil. NH 4 + bond in the soil may go again into solution parallel with the dilution of the soil solution but at a slower rate than fixing. This process influences significantly the NH 4 + content of the soil. In settlements with no sewerage system the high NH 4 + content of sewage flowing out of uninsulated septic tanks may increase the fixed NH 4 -N content of the soil that could have a significant effect on the quality of groundwater even after the potential disappearance of pollution sources. In this study the effects of the fixed NH 4 -N content of the soil around an uninsulated residential septic tank on the purification processes of the groundwater were investigated. The septic tank in the study area was dismantled in 2014 after 27 years of operation as a sewerage system was constructed. When the tank was still in operation in 2012 and 2013, very high, 55–75 mg l - 1 NH 4 + content was measured in the water of the monitoring well 1 metre from the tank in the course of seasonal sampling. When sewage outflow was terminated in 2014 concentrations decreased right away but even 5 years after pollutant supply was stopped, concentrations (35–57 mg l - 1) highly exceeding the pollution limit (0.5 mg l - 1) were measured. Considering this very high concentration, it can be assumed that great amount of NH 4 + is still released into the groundwater. In order to prove this, the exchangeable and fixed NH 4 -N and NO 3 -N contents of the soil were determined by 20 cm down to a depth of 4 metres (2019). The measurements indicated the significant accumulation of exchangeable and fixed NH 4 -N in the zone between 220 and 400 cm. Highest fixed NH 4 -N concentrations of 457 mg l - 1 were found between 220 and 240 cm suggesting that sewage outflow was most intense at this depth. Slow decrease in concentrations can be observed in deeper zones but concentrations higher than 350 mg l - 1 were measured between 220 and 380 cm. Based on correlation analyses, the quantity of fixed NH 4 -N shows no correlation with the soil texture thus it can be stated that the vertical pattern of NH 4 -N content is determined dominantly by sewage outflow and its depth. In the unsaturated zone of the borehole a significant accumulation of NO 3 -N was also identified. The maximum of NO 3 -N was found in the zone between 100 and 140 cm. The peak nitrate calculated for NO 3 - ion with a value 〉 1300 mg kg - 1 is 2.5 times the limit set for the nitrate content of the geological medium. Based on the results, exchangeable and fixed NH 4 -N contents in the soil are still very high, 5 years after sewage outflow was stopped. The continuous solution of this component still contributes to the high NH 4 + content of the groundwater. As a result, the contaminated soil in the immediate environment of the septic tank is still a pollution source.
    Type of Medium: Online Resource
    ISSN: 0002-1873 , 1588-2713
    URL: Article
    DOI: 10.1556/0088.2020.00065
    Language: Unknown
    Publisher: Akademiai Kiado Zrt.
    Publication Date: 2020
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  • 4
    Online Resource
    Online Resource
    Korábban SARS-CoV-2-fertőzésen átesett betegek műtéti érzéstelenítése és perioperatív ellátása
    Akademiai Kiado Zrt. ; 2022
    In:  Orvosi Hetilap Vol. 163, No. 18 ( 2022-05-01), p. 695-701
    Details
    In: Orvosi Hetilap, Akademiai Kiado Zrt., Vol. 163, No. 18 ( 2022-05-01), p. 695-701
    Abstract: Összefoglaló. A korábban SARS-CoV-2-vírusfertőzésen átesett betegeknél különösen fontos az elektív műtét időpontjának megválasztása. Egy több, mint százezer beteget felölelő tanulmány szerint átlagosan 7 hét szükséges az elektív műtétre bocsátáshoz. Sürgős műtétek esetében a beteg általános állapota és a műtéttől várt javulás alapján mérlegelendő a műtét időpontja. A vitális indikációjú műtétek képezik a legnagyobb rizikót, hiszen ezen esetekben igen csekély idő és lehetőség van a preoperatív betegelőkészítésre. A SARS-CoV-2-vírusfertőzés nem minden esetben múlik el nyomtalanul. Szövődményeként felléphetnek cardiopulmonalis, véralvadási, központi idegrendszeri, mozgásszervi problémák, akut veseelégtelenség, ion- és vércukorháztartás felborulása, valamint gastrointestinalis eltérések is, melyek lehetnek rövid vagy hosszú távúak, illetve egyes esetekben maradandó károsodások is. A preoperatív kivizsgálási stratégiát, a műtéti érzéstelenítés módszerét (általános vagy regionális), valamint az intraoperatív monitorozást ezen szövődmények súlyosságának, valamint a műtét típusához megfelelően kell megválasztani. A posztoperatív időszakban a SARS-CoV-2-vírusfertőzésen átesett betegek körében gyakrabban lehet szükség emelt szintű monitorozásra vagy intenzív osztályos megfigyelésre. Orv Hetil. 2022; 163(18): 695–701. Summary. The timing of elective surgery is very important in patients, who suffered SARS-CoV-2 virus infection. According to a study of more than 100,000 patients, it takes approximately seven weeks to be safely admitted to elective surgery. In the case of emergency surgeries, the date of the surgery should be considered based on the patient’s general condition and the expected improvement from the surgery. Surgery with a vital indication takes the greatest risk, as there is very little time and opportunity for preoperative examination in these cases. SARS-CoV-2 virus infection does not go away without a trace. Complications may include cardiopulmonary, coagulation, central nervous system, locomotor problems, acute renal failure, ionic and diabetic disorders, and gastrointestinal abnormalities, which may be short-term or long-term, and in some cases permanent. The preoperative examination strategy, the method of anesthesia (general or regional) and the intraoperative monitoring should be chosen according to the severity of these complications and the type of surgery. In the postoperative period, patients suffered with SARS-CoV-2 virus infection may require more frequent monitoring or intensive ward monitoring. Orv Hetil. 2022; 163(18): 695–701.
    Type of Medium: Online Resource
    ISSN: 0030-6002 , 1788-6120
    URL: Article
    DOI: 10.1556/650.2022.32506
    Language: Unknown
    Publisher: Akademiai Kiado Zrt.
    Publication Date: 2022
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