Search Results - "Velinov, N"

Activated carbons from used motor oil as catalyst support for sustainable environmental protection by Tsoncheva, T., Mileva, A., Marinov, S.P., Paneva, D., Velinov, N., Spassova, I., Kosateva, A., Kovacheva, D., Petrov, N.

“…Activated carbons obtained from used motor oil mixtures with furfural or coal tar pitch were prepared and tested as a host matrix of zinc and/or iron oxide…”
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Endovascular treatment with Onyx of arterio-venous fistula around the transverse sinus presenting with ocular symptoms. Case report by Velinov, N., Petrov, M., Sakelarova, T., Yordanov, P., Martinov, I., Gabrovsky, N.

“…•Transverse sinus DAVF rarely lead to ocular symptoms.•Transarterial embolization of DAVF with Onyx is safe, with high initial occlusion rate.•Ocular symptoms…”
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NO reduction by CO over gold catalysts supported on Fe-loaded ceria by Ilieva, L., Pantaleo, G., Velinov, N., Tabakova, T., Petrova, P., Ivanov, I., Avdeev, G., Paneva, D., Venezia, A.M.

“…[Display omitted] •Comparison of catalytic behavior in NO reduction by CO over gold on Fe-doped ceria.•Supports preparation by mechanical mixing (MM) or…”
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Synthesis, Mössbauer study and catalytic properties of Cu-Ni-Fe- oxide/nitride mixed-phase materials by Velinov, N., Petrova, T., Ivanova, R., Tsoncheva, T., Kovacheva, D., Eliyas, A., Mitov, I.

“…Materials with cation ratio Cu:Ni:Fe = 0.5:0.5:2 were prepared by sol-gel auto-combustion technique using corresponding metal nitrates and citric acid as…”
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Assessment of surgical time and clinician radiation exposure of navigated robotic assisted minimally invasive transpedicular screw fixation versus conventional percutaneous technique by Gabrovsky, N., Ilkov, P., Velinov, N.

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Robotic-assisted percutaneous vertebroplasty for the treatment of extreme codfish vertebrae by Gabrovsky, N., Ilkov, P., Velinov, N.

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Subjective workload measurement of the transition from a conventional operative microscope to a Robotic Digital Microscope. A pilot study by Gabrovsky, N., Petrov, M., Ilkov, P., Iordanova, I., Velinov, N.

“…•Evaluate the subjective workload for transition of an experienced neurosurgeon from a conventional operative microscope /OPMI/ to a Robotic Digital Microscope…”
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Bilateral posterior fracture - dislocation of the shoulders after epileptic seizure in patients with cerebral meningiomas. Triple E syndrome – Review of the literature by Petrov, M., Laleva, M., Fidanov, M., Gerganov, V., Velinov, N., Baltov, A., Gabrovsky, N.

“…Bilateral posterior fracture-dislocation of the shoulders is a very rare entity with an average rate of 0.6/100000 per year. It was first described in 1902 by…”
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Activated Carbon from Used Motor Oils: Synthesis and Application as Supports of Nanosized Fe–Cr Oxides by Issa, G., Dimitrov, M., Marinov, S. P., Velinov, N., Spasova, I., Kovacheva, D., Tsoncheva, T.

“…The activated carbons were produced from waste biomass using a mixture of used motor oil and diverse plastic residues, such as high-density polyethylene and…”
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A rare case of posttraumatic meningitis presenting with acute hydrocephalus by Petrov, M., Samuel, J., Jordanova, I., Ilkov, P., Velinov, N., Gabrovsky, N.

“…Posttraumatic meningitis is a severe complication of traumatic brain injury (TBI) that dramatically increases its mortality. Skull-base fractures increase the…”
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Endovascular treatment of distal anterior cerebral artery aneurysm presenting with acute subdural hematoma by Petrov, M., Velinov, N., Ilkov, P., Sakelarova, T., Martinov, I., Alioski, N., Gabrovsky, N.

“…•Endovascular treatment of distal anterior cerebral artery aneurysm.•Endovascular treatment of aneurysm in the presence of acute subdural hematoma.•Late…”
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Complications in endovascular neurosurgery by Velinov, N., Petrov, M., Aliosky, N., Ilkov, P., Martinov, I., Gabrovsky, N.

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Auto-combustion synthesis, Mössbauer study and catalytic properties of copper-manganese ferrites by Velinov, N., Petrova, T., Tsoncheva, T., Genova, I., Koleva, K., Kovacheva, D., Mitov, I.

“…Spinel ferrites with nominal composition Cu 0.5 Mn 0.5 Fe 2 O 4 and different distribution of the ions are obtained by auto-combustion method. Mössbauer…”
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A study of the pressure vessel steel of the WWER-440 unit 1 of the Kozloduy nuclear power plant by Kostadinova, E., Velinov, N., Avdjieva, T., Mitov, I., Rusanov, V.

“…A comparison between highly neutron irradiated samples from the region of weld № 4 and low irradiated samples from weld № 1 taken from the pressure vessel of…”
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Nano-gold catalysts on Fe-modified ceria for pure hydrogen production via WGS and PROX: Effect of preparation method and Fe-doping on the structural and catalytic properties by Ilieva, L., Tabakova, T., Pantaleo, G., Ivanov, I., Zanella, R., Paneva, D., Velinov, N., Sobczak, J.W., Lisowski, W., Avdeev, G., Venezia, A.M.

“…•Gold on Fe-doped ceria prepared by mechanical mixing (MM) or by impregnation (IM).•Significantly higher WGS activity of gold catalysts on MM compared to IM…”
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Prognostic significance of TERT promoter mutations and association with other common genomic aberrations in Bulgarian glioblastoma patients by Stancheva, G, Goranova, T, Laleva, M, Mitkova, A, Poptodorov, G, Velinov, N, Kamenova, M, Mitev, V, Gabrovsky, N, Kaneva, R

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Ruptured anterior communicating artery aneurysms – “Coil first policy”. Why and when? by Velinov, N., Alioski, N., Petrov, M., Martinov, I., Ilkov, P., Gabrovsky, N.

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Microvascular endowment in the developing chicken embryo lung by Makanya, A N, Hlushchuk, R, Baum, O, Velinov, N, Ochs, M, Djonov, V

“…In the current study, the contribution of the major angiogenic mechanisms, sprouting and intussusception, to vascular development in the avian lung has been…”
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Influence of gold presence and thermal treatment on recrystallization of copper-manganese ferrite catalysts by Velinov, N. I., Petrova, T. M., Ivanov, I. B., Tabakova, T. T., Idakiev, V. D., Mitov, I. G.

“…The present work aims to evaluate the influence of synthesis conditions and gold addition on structural and functional characteristics of copper-manganese…”
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698: Gene expression of SOX2, SOX6, SOX8 and SOX9 and their prognostic role in patients with gliomas by Stancheva, G, Goranova, T, Laleva, M, Kamenova, M, Mitkova, A, Velinov, N, Poptodorov, G, Kaneva, R, Mitev, V, Gabrovsky, N

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