Sea surface temperatures (SSTs) in the cold tongue of the eastern equatorial Pacific exert powerful controls on global atmospheric circulation patterns. We examined climate variability in this region from the Last Glacial Maximum (LGM) to the present, using a SST record reconstructed from magnesium/calcium ratios in foraminifera from sea-floor sediments near the Galápagos Islands. Cold-tongue S...

This study aim is to provide a feasible and effective way for the government supervision, agricultural enterprises and consumers to obtain traceability information. This study researches traceability of agricultural products. Through the analysis of the participators, the influence of the agricultural products circulation pattern of supply chain, traceability security system and tracing process...

Based on the definition of potential vorticity substance (W) and its equation, an index “iPV” representing leading mode surface circulation (PVC) over Tibetan Plateau is defined to characterize orographic (PV) forcing atmospheric general circulation. The relationships between iPV East Asian monsoon in July, as well Silk Road pattern Eurasia, are investigated interannual time scale. Results show...

We report a case of geographic or mosaic pattern yellowish opaque foci in the left eye of a 36-year-old woman who suffered from severe pre-eclampsia. Though the geographic lesions resulted in chorioretinal atrophy, the mosaic lesion led to no significant atrophy. These two findings were both diagnosed as manifestations of choroidal ischaemia, the former due to choroidal artery occlusion, the la...

A 44-year-old woman who showed recurrent vitreous hemorrhages with vascular tortuosity received CT angiography which revealed an internal carotid artery aneurysm. A case of internal carotid aneurysm was associated with a pattern of retinal arteriolar tortuosity pathognomic for familial retinal arterial tortuosity (fRAT), suggesting possible involvement of the cerebral circulation. We present a ...

Since the early 1990s Pacific Walker circulation shows a multi-decadal strengthening, which contradicts future model projections. Whether this trend, evident in many climate indices especially before 2015 El Niño, reflects coupled ocean-atmosphere response to global warming or negative phase of Decadal Oscillation (PDO) remains debated. Here we show that sea surface temperature trends during 19...

Abstract This study examines coupled relationships among clouds, atmospheric circulation, and sea ice in Antarctic winter. We find that the wave-3 pattern dominates leading covariability mode cloud, ice. Both horizontal transport vertical motion contribute to cloud formation, resulting maximum anomalies spatially between meridional wind pressure system. The radiative effect of clouds related ca...

background and objectives: human bocavirus (hbov) is a newly discovered parvovirus. it has been detected primarily in children with acute respiratory tract infections. this study was conducted to clarify the frequency and genotype circulation pattern of hbov in iran. materials and methods: conventional pcr was performed on throat swabs of patients less than two years of age with respiratory ill...