The structure and variance of the equatorial zonal circulation, as characterized by the atmospheric mass flux in the equatorial zonal plane, is examined and intercompared in simulations from 9 CMIP3 coupled climate models with multiple ensemble members and the NCEPNCAR and ERA-40 reanalyses. The climate model simulations analyzed here include twentieth century (20C3M) and twenty-first century (...

Biogenic emissions and secondary organic aerosols (SOA) are strongly dependent on climatic conditions. To understand the SOA levels and their sensitivity to future climate change in the United States (U.S.), we present amodelingworkwith the consideration of SOA formation from the oxidation of biogenic emissions with atmospheric oxidants (e.g., OH, O3, and NO3). The model simulation for the pres...

groundwater quality regarding major anions and cations in the birjand plain located in the largest desert in eastern iran was monitored in this study. fifteen boreholes were considered as sampling stations and the parameters ph, tds, ec and major anions and cations were measured in groundwater samples. the dominant groundwater types can be introduced as sodium-chloride and magnesium-sulphate. t...

BACKGROUND Various studies have indicated that dyslipidemia starts in childhood. There is a relationship between the concentration of blood lipids and atherosclerosis. In this study, we assessed the prevalence of dyslipidemia in elementary school children. METHODS This cross-sectional study was performed on 1,626 (882 girls and 744 boys) elementary school children aged between 6 and 11 years ...

BACKGROUND Infection with the hepatitis B virus (HBV) is an important global health problem. Knowledge of the geographic distribution pattern of HBV infection can help to control the spread of the disease. OBJECTIVES To determine the prevalence of HBV infections and risk factors for the disease for the first time in Birjand, Southeastern Iran. METHODS This was an analytical cross-sectional ...

Secretion of neurotransmitters is initiated by voltage-gated calcium influx through presynaptic, voltagegated N-type calcium channels. These channels interact with the SNARE proteins, which are core components of the exocytosis process, via the synaptic protein interaction (synprint) site in the intracellular loop connecting domains II and III of their a1B subunit. Interruption of this interact...

a-Adrenergic receptor (AR) activation enhances sodium retention in certain forms of hypertension. The objective of the present study was to understand the role of a-ARs in regulating sodium transport by distal tubules (DT). DT cells were isolated from kidneys of spontaneously hypertensive rats (SHR) and Wistar-Kyoto (WKY) rats at 6 weeks, when hypertension is developing, or at 12 weeks, when hy...

Jujube (Ziziphus jujuba Mill.) is an important medicinal plant in Iran. Jujube fruit contains amino acids, polysaccharides and microelements.Ripened jujube fruits were collected at fully mature stage from two research collection of jujube at Khaf and Birjand centers in south Khorasan province, Iran, early in September, 2015.The physicochemical properties and antioxidant capacity were i...