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Rezultatele pentru genomic template instabil

Rezultate gasite: 19

Environmental Engineering and Management Journal, Vol. 7 Nr. 2
Environmental Engineering and Management JournalVol. 7Nr. 2
Include urmatoarele articole:� Synthesis of Ferrierite/ZSM-35 type zeolite with ethylenediamine as template� Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factors� Relationships between metals extent and cytological characteristics at Prunus persica L. pollen� Smoke Emissions From Diesel Vehicles: A Case Study� Carbon dioxide generation - implications for romanian pulp and paper industry � Enhanced decolorization of ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25208

Synthesis of Ferrierite/ZSM-35 type zeolite with ethylenediamine as template
Environmental Engineering and Management JournalVol. 7Nr. 2
AbstractThe crystallization of ferrierite/ZSM-35 zeolite at 180 ± 50C in the presence of ethylenediamine as a structure-directing agent from reaction mixtures containing various active NaOH/SiO2 ratios has been studied. X-ray diffraction, scanning electron microscopy, TG/DTG/DSC analysis, nitrogen sorption measurements and temperature-programmed ammonia desorption were used to characterize the ferrierite/ZSM-35 solids. The XRD data reveal that the samples synthesized in optimized conditions are...
Autori: Ioana Droahna, Iuliean Asaftei, Nicolae Bilba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25251

New ecomaterials for wood preservation
Environmental Engineering and Management JournalVol. 8Nr. 4
Abstract Wood has been used as an engineering material because it is low in cost, renewable and strong and it requires low processing energy. Wood has many excellent properties that result from its exceptional combination of microstructural, ultrastructural and molecular features. The main drawback is its dimensional instability in the presence of moisture, which can affects also the biological stability. Wood is susceptible to degradation in a number of ways, including rot or decay, insect a...
Autori: Lucia Dumitrescu, Ileana Manciulea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25473

Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic acid from aqueous solutions
Environmental Engineering and Management JournalVol. 8Nr. 4
Abstract Molecular imprinting is a versatile and ecological method for obtaining polymeric materials with a lot of applications in the field of pharmacy, medicine and biosensor assays. In this work, a new method of alternative molecular imprinting to design imprinted poly (vinyl alcohol) films has been proposed. Glycyrrhizinic acid has been used as template molecule. To demonstrate the obtaining of the molecular imprinted poly (vinyl alcohol) and its selectivity, studies of glycyrrhizinic and...
Autori: , Catalin Croitoru, Georgeta Moise
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25495

A green route to synthesize CeO2 nanoparticles
Environmental Engineering and Management JournalVol. 8Nr. 5
Abstract The paper presents the surfactant-assisted solvo-thermal route to synthesize nanoparticles of cerium oxide with different shape and morphology. The precursor was calcined at 400°C for 4 h in order to obtain CeO2 nanoparticles. The obtained samples were characterized by means of thermal analysis and FTIR spectroscopy. The UV-Vis analysis was used to study the optical properties. The morphologies and nano-structures were characterized by scanning electron microscopy (SEM) and XRD. It...
Autori: Nicolae Apostolescu, Gabriela Carja, Gabriela Apostolescu, Elena Husanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25541

SAFETY LEVELS REACHED BY REINFORCED SOIL STRUCTURES
Environmental Engineering and Management JournalVol. 12Nr. 2
Abstract The paper deals with reinforced soil structures used in critical infrastructures for ecological landfills. During the last 17 years in Romania 28 such landfills were completed. Romania is however a country where strong earthquakes often occur. About 60% of its territory feels the seismic actions which combine with the existing ones. During earthquakes in the massive structures of landfills, huge inertial forces are developing. Due to uncontrolled movements and deformations...
Autori: Cristina Feodorov
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26118

NEW TECHNOLOGIES - BETWEEN BUSINESS AND ENVIRONMENTAL PROTECTION IN ROMANIA
Environmental Engineering and Management JournalVol. 13Nr. 8
AbstractRomania has implemented the most generous program of renewable energy development from the entire European Union. Thiswork studies the implications of the accelerated development of renewable energy and especially wind energy. Because of theinstability of this energy, the need to resort to more than what was recommended for the classic energy was inevitable. That iswhy the favorable impact on the environment was below expectations. Also, important unfavorable economic effects haveemerged...
Autori: Eugenia Grecu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26458

AGRICULTURAL GREEN GAS DEMONSTRATION PROJECTS IN THE NETHERLANDS. A STAKEHOLDER ANALYSIS
Environmental Engineering and Management JournalVol. 13Nr. 12
Abstract In the Netherlands green gas is seen as a sustainable alternative to natural gas. However, green gas is still not competitive to natural gas in terms of pricing, and production volumes are remarkably low. Currently, there is a lot of attention to green gas which stems from upgraded biogas, which is produced by manure-based anaerobic co-digestion by livestock farmers. In this article the central question is to understand green gas demonstration projects from stakeholders’ persp...
Autori: Thomas Hoppe
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26603

OPTIMIZATION OF THERMOPHILIC ANAEROBIC DIGESTION OF WINERY BIO-WASTE BY MICRO-NUTRIENTS AUGMENTATION
Environmental Engineering and Management JournalVol. 14Nr. 7
Abstract Thermophilic anaerobic digestion is a suitable technology to treat agricultural waste because of its higher biogas production, hygienisation effect and solids removal efficiency. Although these benefits, poor effluent quality and instability are encountered in some cases. The anaerobic co-digestion of winery waste and waste activated sludge at 55°C, operating at 23 days HRT and with an organic loading rate of 3.2 kg COD/m3d, was characterized by accumulation of volatile fatty ac...
Autori: Cinzia Da Ros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26775

GENOMICS AND PROTEOMICS TECHNIQUES IN NANOPARTICLES STUDIES – NEW APPROACH IN ENVIRONMENTAL RESEARCH
Environmental Engineering and Management JournalVol. 14Nr. 10
Abstract Environmental research has been significantly enriched by genomic and proteomic methodologies. Particularly in the atmospheric pollution studies, where a variety of environmental hazards act simultaneously and frequently in close interrelationship, only such integrative methods can provide a comprehensive analysis. Nanoparticles are a heterogeneous class of particles, but their health effects have also common aspects. The scope of the article is to present the contribution of genomi...
Autori: Marina Otelea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26852

ROLE OF ENVIRONMENTAL RISK FACTORS IN PARKINSON’S DISEASE: BUCOVINA REGION CASE STUDY
Environmental Engineering and Management JournalVol. 14Nr. 10
Abstract Parkinson's disease (PD) is a neurodegenerative disorder that occurs due to a progressive degeneration of dopaminergic (DA) neurons. Brain area affected by progressive destruction of neurons controls movements, and patients with PD reveal rigid and uncontrollable gestures, postural instability, small handwriting and tremor. There are some risk factors that have been proven to trigger PD with a certain probability (for example insecticides exposure, and genetic and environmental ...
Autori: Oana Geman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26868

PHYSICAL AND MECHANICAL PROPERTIES OF WOOD FROM THIN LOGS OF Quercus petraea spp.
Environmental Engineering and Management JournalVol. 15Nr. 12
This paper examined some physical and mechanical properties of wood from thin trees of sessile oak collected from thinning operations, in order to recommend this secondary wood resource for potential superior applications (as solid wood panels and furniture components). Swelling, shrinkage, modulus of rupture (MOR) and modulus of elasticity (MOE) and compression strength parallel to the grain were examined and compared with data from literature reported for mature trees. The variation of the abo...
Autori: Alin M. Olărescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27210

NEW MESOPOROUS TITANIUM OXIDE-BASED PHOTOACTIVE MATERIALS FOR THE REMOVAL OF DYES FROM WASTEWATERS
Environmental Engineering and Management JournalVol. 16Nr. 4
The remarkable photocatalytic properties of titanium dioxide and the high adsorption capacity of the mesoporous materials were combined to obtain active photocatalysts for the decomposition of Rhodamine 6G dye. The mesoporous TiO2 was obtained by the controlled hydrolysis-condensation of titanium isopropoxide, using hexadecyl-trimethyl-ammonium bromide as template, followed by calcination to remove the organic matter. Subsequently, this sample was doped with sodium wolframate and platinum. T...
Autori: Doina Lutic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27325

ANAEROBIC-AEROBIC BAFFLED REACTOR TREATING REAL MUNICIPAL WASTEWATER IN A LOW INCOME COMMUNITY
Environmental Engineering and Management JournalVol. 17Nr. 3
Inadequate sanitation and poor infrastructure for waterborne sanitation are common in many developing countries. The anaerobic/aerobic baffled reactor (AABR) is a sustainable option for water sanitation in developing countries. In the present study, a 2.50 m3 AABR reactor working with real municipal wastewater was monitored. Four sequenced chambers, the first three being anaerobic and the fourth aerobic composed the AABR reactor. AABR efficiency and performance were examined during four diff...
Autori: Gustavo Henrique Ribeiro da Silva
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27656

EFFECT OF SYNTHESIS PARAMETERS ON SORPTIVE PROPERTIES OF GLYCEROL-DERIVED MESOPOROUS CARBON
Environmental Engineering and Management JournalVol. 18Nr. 1
The effect of synthesis conditions on sorptive properties of glycerol-derived mesoporous carbon materials were studied. Sorption properties of the synthesized carbon-based materials regarding to different adsorbate molecules, as well as water vapors, phenol and methylene blue molecules were analyzed. The sorption capacity of the synthesized mesoporous carbons depends upon synthesis conditions, namely upon pyrolyzing temperature and carbon precursor to silica weight ratio, being determined by ...
Autori: Maria Ignat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27880

PHOTOCATALYTIC DEGRADATION OF ATRAZINE USING ZINC OXIDE TEXTURALLY MODIFIED WITH STICKY RICE STARCH TEMPLATE AND DOPED WITH TRANSITION METALS
Environmental Engineering and Management JournalVol. 17Nr. 12
Atrazine is a herbicide used widely with a large quantity in Thailand and can contaminate in surface and groundwater. This work investigated atrazine removal from an aqueous solution by catalytic photodegradation using oxides of metal-cerium-zinc (M-Ce-ZnO, M = Ag, Fe, and Cu). ZnO is texturally modified with sticky rice starch template, doped with cerium (Ce) and either Ag, Fe, or Cu with the M:Ce:Zn molar ratio of 0.005:0.005:1. The catalysts were characterized by XRD, UV-Vis-DRS, and N2 adsor...
Autori: Pummarin Khamdahsag
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27974

STUDY OF BATCH ADSORPTION OF URANIUM IONS BY MCM-48 MATERIALS SYNTHESIZED AT ROOM TEMPERATURE
Environmental Engineering and Management JournalVol. 19Nr. 1
The mesoporous MCM-48 was synthesized at room temperature with different templates such as hexadecytrimethylammonium bromide (C16TABr), hexadecytrimethylammonium chloride (C16TACl) and dodecyltrimethlammonium chloride (C12TACl). The obtained materials were characterized by XRD, N2 adsorption/desorption, FTIR and SEM techniques, and their performance as uranium adsorbent were investigated. In this framework, the effect of contact time, pH of solution, initial uranium concentration and temperat...
Autori: Meriem Chabane Sari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28131

GLOBAL TRENDS AND PERFORMANCES OF STUDIES ON ANTIBIOTIC RESISTANCE GENES
Environmental Engineering and Management JournalVol. 19Nr. 3
There are substantial publications about the research of antibiotic resistance genes (ARGs). The purpose of this paper is to identify the global trends and performances of ARGs research. Literatures of ARGs that published between 1974 and 2016 from Web of Science Core Collection were used to create the bibliometric database for the present study in which we coupled cluster analysis and network analysis to visualize research trends of ARGs with international collaborations and trans-disciplinary ...
Autori: Chun-Li Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28176

EFFECTS OF CARBENDAZIM ON DNA DAMAGE AND RETROTRANSPOSON POLYMORPHISM IN Zea mays
Environmental Engineering and Management JournalVol. 19Nr. 8
Carbendazim (CBZ, methyl 2-benzimidazolecarbamate) is used widely in agriculture against fungal diseases. We aimed to determine the effects of CBZ (0, 0.1, 0.2 and 0.4 mM) on long terminal repeat (LTR) retrotransposon polymorphism and genomic template stability (GTS), DNA damage using ınter-simple sequence repeats (ISSR) and inter-retrotransposon amplified polymorphisms (IRAP) marker techniques. Our results showed that all doses of CBZ compose retrotransposition polymorphism. In additional, ou...
Autori: Nalan Yildirim
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28250

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