Time-scales of viral evolution and emergence have been studied widely, but are often poorly understood. Molecular analyses of viral evolutionary time-scales generally rely on estimates of rates of nucleotide substitution, which vary by several orders of magnitude depending on the timeframe of measurement. We analysed data from all major groups of viruses and found a strong negative relationship...

Ambient occlusion is a cheap but effective approximation of global illumination. Recently, screen-space ambient occlusion (SSAO) methods, which sample the frame buffer as a discretization of the scene geometry, have become very popular for real-time rendering. We present temporal SSAO (TSSAO), a new algorithm which exploits temporal coherence to produce high-quality ambient occlusion in real ti...

Primates, wild animals often experience co-existence with humans; in this case, they share habitats. This certainly raises the potential for human-primate interactions, including positive or negative interactions. One example of interaction presents phenomenon conflict. In comparison, one can be found ethnoprimatology role a particular ethnic community. study briefly reviews how primate-human i...

Ambient occlusion is a cheap but effective approximation of global illumination. Recently, screen-space ambient occlusion (SSAO) methods, which sample the frame buffer as a discretization of the scene geometry, have become very popular for real-time rendering. We present temporal SSAO (TSSAO), a new algorithm which exploits temporal coherence to produce high-quality ambient occlusion in real ti...

objectives in this study, we aimed to investigate the changes in brain lipidomics following prolonged and intermittent ischemic preconditioning. materials and methods two groups underwent bilateral common carotid artery occlusion either intermittently (for 3 continuous periods within a timeframe of 20 minutes, releasing 3 consecutive times, yielding a total of 9 minutes (intermittent bilateral ...

Adult neurogenesis is modulated by growth factors, physical conditions, and other alterations in the physical microenvironment. We studied the effects of focal ischemia on neurogenesis in the subventricular zone (SVZ), olfactory bulb (OB), and hippocampal dentate gyrus (DG) (known to be persistent neurogenic regions) in the adult non-human primate, the cynomolgus monkey. Three monkeys underwent...

Artificial embolization of the middle cerebral artery (MCA) was produced in the primate, with a technique similar to that described by Luessenhop and Spence (1960) for the treatment of an inoperable arteriovenous malformation in the territory of the MCA. Silicone spheres (1 to 1.5 mm in diameter) were introduced into the internal carotid artery (ICA) via the external carotid artery (ECA). Embol...

chronic total occlusion (cto) intervention is still a challenging problem. the aim of this study is to determine factors that affect pci results.the study was conducted on 72 patients in two centers. cto angioplasty was done by the antegrade approach from the femoral and/or radial approach. the role of age, gender, anatomical variations such as calcification, length of the lesion, proximal bend...

background: in vitro fertilization and embryo transfer (ivf-et) is the best option for patients with hydrosalpinx. however, if hydrosalpinges is not pre-treated, the therapeutic outcomes of ivf-et would be compromised. objective: this study aims to investigate the safety and effects of operative hysteroscopy in the treatment of patients with hydrosalpinx prior to ivf-et, who were not indicated ...