|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Assessment of pollution levels and human health risk of heavy metals in dust deposited on Yerevan's tree leaves (Armenia)显示文摘The total concentrations of Cd,As,Pb,Cr,Ni,Co,Zn,Cu,Ag,Hg,and Mo were determined in the atmospheric dust of the city of Yerevan by atomic absorption spectrometry(AAnalyst PE 800).Heavy metal pollution levels were evaluated by calculating geo-accumulation(I_(geo)) and summary pollution(Z_c) indices.Potential human health risk was assessed using the United States Environmental Protection agency's human health risk assessment model.The results show that mean contents of all elements tested except Ni and Cr were substantially higher than local geochemical background values.According to the I_(geo),Yerevan territory is strongly-to-extremely polluted by As,Ag,Hg,Mo,and Cd.The Z_c assessment indicated that very high pollution was detected in 36%of samples,high in 32%,average in 12%,and low in 20%.The health risk assessment revealed a noncarcinogenic risk(HI >1) for children at 13 samplings sites and for adults at one sampling site.For children the risk was due to elevated levels of Mo,Cd,Co,and As,while for adults,only Mo.Carcinogenic risk(>1:1,000,000) of As and Cr via ingestion pathway was observed in 25 and 14 samples,respectively.This study,therefore,is the base for further detailed investigations to organize problematic site remediation and risk reduction measures. | N. Maghakyan G. Tepanosyan O. Belyaeva L. Sahakyan A. Saghatelyan | 2017 | Acta Geochimica2017，36，1： | 6 |
| 2 | Astrocytes control the development of the migration-promoting vasculature scaffold in the postnatal brain via VEGF signaling 显示文摘 | Bozoyan L Khlghatyan J Saghatelyan A | 2012 | J Neurosci2012，32，5： | 1 |
| 3 | Nicotinic receptors regulate the survival of newborn neurons in the adult olfactory bulb显示文摘 | Mechawar N Saghatelyan A Grailhe R | 2004 | Proc Natl Acad Sci USA2004，101，26： | 1 |
| 4 | Tenascin-R mediates activity-dependent recruitment of neuroblasts in the adult mouse forebrain显示文摘 | Saghatelyan A De Chevigny A Schachner M | 2004 | Nat Neurosci2004，7，4： | 1 |
| 5 | Integrating new neurons into the adult olfactory bulb:joining the network,life-death decisions,and the effects of sensory experience显示文摘 | Lledo PM Saghatelyan A | 2005 | Trends Neurosci2005，28，5： | 1 |
| 6 | Integrating new neurons into the adult olfactory bulb: joining the network, life-death decisions, and the effects of sensory experience显示文摘 | Lledo PM Saghatelyan A | 2005 | Trends Neurosci2005，28，5： | 1 |
| 7 | Activity-dependent adjustments of the inhibitory network in the olfactory bulb following early postnatal deprivation显示文摘 | Saghatelyan A Roux P Migliore M | 2005 | Neuron2005，46，1： | 1 |
| 8 | Inhibitory interneurons in the olfactory bulb:from development to function显示文摘 | Lledo PM Saghatelyan A Lemasson M | 2004 | Neuroscien tist2004，10，4： | 1 |
| 9 | Integrating new neurons into the adult olfactory bulb: joining the network, life-death decisions, and the effects of sensory experience 显示文摘 | Lledo PM Saghatelyan A | 2005 | Trends Neurosci2005，28，5： | 1 |
| 10 | The extracellular matrix molecule tenascin-R and its HNK-1 carbohydrate modulate perlsornatic inhibition and long-term potentiation in the CA1 region of the hippocampus 显示文摘 | Saghatelyan A K Gorissen S Albert M | 2000 | Eur J Neurosci2000，12，9： | 1 |
| 11 | Activitydependent adjustments of the inhibitory network in the olfactory bulb following early postnatal deprivation显示文摘 | Saghatelyan A Roux P Migliore M | 2005 | Neuron2005，46，6： | 1 |
| 12 | De-routing neuronal precursors in the adult brain to sites of injury:role of the vasculature显示文摘 | Massouh M Saghatelyan A | 2010 | Neuropharmacology2010，58，6： | 1 |
| 13 | The extracellular matrix molecule tenascin-R and its HNK-1 carbohydrate modulate perisomatic inhibition and long-term potentiation in the CA1 region of the hippocampus显示文摘 | Saghatelyan AK Gorissen S Albert M | | 0，，09： | 1 |
| 14 | Reduced perisomatic inhibition,increased excitatory transmission,and impaired long-term potentiation in mice deficient for the extracellular matrix glycoprotein tenascin-R显示文摘 | Saghatelyan AK Dityatev A Schmidt S | 2001 | Mol Cell Neurosci2001，17，1： | 1 |
| 15 | Tenascin-R mediates activity-dependent recruitment of neuroblasts in the adult mouse forebrain显示文摘 | Saghatelyan A de Chevigny A Schachner M | 2004 | Nat Neurosci2004，7，4： | 1 |
| 16 | Tenascin-R mediates activity-dependent recruitment of neuroblasts in the adult mouse forebrain显示文摘 | Saghatelyan A de Chevigny A Schachner M | 2004 | Nat Neurosci2004，7，： | 1 |
| 17 | Activity-dependent adjustments of the inhibitory network in the olfactory bulb following early postnatal deprivation 显示文摘 | Saghatelyan A Roux P Migliore M | 2005 | Neuron2005，46，1： | 1 |
| 18 | Altitude-dependent distribution of 137Cs in the environment:a case study of Aragats massif, Armenia显示文摘This paper considers the distribution of technogenic 137Cs and naturally occurring radionuclides:238 U,232 Th and40 R concentrations in soils and 137Cs in atmospheric dry depositions by altitudinal belts of the Aragats mountain massif,Republic of Armenia.Undisturbed soil samples were collected at altitudes from 1000 to 3200 m.For the determination of geochemical variability,two soil sampling campaigns were undertaken.Atmospheric dry depositions were sampled from five stations at1100-3200 m collected onto organic fiber filters between June and December 2016.137Cs activity was measured using a high-purity Germanium detector coupled to a multichannel analyzer(Canberra).Results indicated that specific activity of 137Cs in soils at 1000 m is495-528 Bq m^-2,andat3200 mis10,500-11,470 Bq m^-2.No correlation observed for 137Cs versus naturally occurring radionuclides,which varies in distribution by altitude.Specific activities of 137Cs in dry atmospheric depositions varies from 1.06 at 846 m to2.37 Bq m^-2 per quarter at 3200 m and increases as the altitude increases.Activities of 137Cs in soil and dry atmospheric deposition correlated significantly,and 137Cs activity in soils and atmospheric dry depositions decrease as the absolute altitude decreases.The 50-year effective dose from exposure to 137Cs fallout varies with altitude from 0.007 to 1.42 m Sv. | Konstantin Pyuskyulyan Stephen P.LaMont Vovik Atoyan Olga Belyaeva Nona Movsisyan Armen Saghatelyan | 2020 | Acta Geochimica2020，39，1： | 0 |
| 19 | The Utility of GIS for Assessing the Ecological State and Managing Armenian's Farmlands显示文摘 | Armen Saghatelyan Shushanik Asmaryan Vahagn Muradyan Garegin Tepanosyan | 2014 | Journal of Geological Resource and Engineering2014，2，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员