there are different methods used for threshing of grain crops. usual threshers operate based on the impact force (in threshing unit) that may damage the grains. in another method named axial-flow, grain damage is less so these types of the harvesting machines are being used more than before. in this study one of the common rice threshers (model t30) locally made in ashtad company was modified t...

We examined habitat disturbance, species richness, equitability, and abundance of ants in the Fall-Line Sandhills, at Fort Benning, Georgia. We collected ants with pitfall traps, sweep nets, and by searching tree trunks. Disturbed areas were used for military training; tracked and wheeled vehicles damaged vegetation and soils. Highly disturbed sites had fewer trees, diminished ground cover, war...

Two areas in the human occipito-temporal cortex respond preferentially to faces: 'the fusiform face area' ('FFA') and the 'occipital face area' ('OFA'). However, it is unclear whether these areas have an exclusive role in processing faces, or if sub-maximal responses in other visual areas such as the lateral occipital complex (LOC) are also involved. To clarify this issue, we tested a brain-dam...

Brain-damaged patients experience difficulties in recognizing a face (prosopagnosics), but they can still recognize its expression. The dissociation between these two face-related skills has served as a keystone of models of face processing. We now report that the presence of a facial expression can influence face identification. For normal viewers, the presence of a facial expression influence...

Three-dimensional surface geometry of rock discontinuities and its evolution with shearing are of great importance in understanding the deformability and hydro-mechanical behavior of rock masses. In the present research, surfaces of three natural rock fractures were digitized and studied before and after the direct shear test. The variography analysis of the surfaces indicated a strong non-line...

Abstract: Companies with market power occasionally engage in intentional quality reduction of a portion of their output as a means of offering two qualities of goods for the purpose of price discrimination, even absent a cost saving. This paper provides an exact characterization in terms of marginal revenues of when such a strategy is profitable, which, remarkably, does not depend on the distri...

Summan Previous cross-sectional data suggest a positive association between serum cholesterol and brain neoplasms. but the results of cohort studies are inconclusive. There is evidence that in women the growth of meningiomas and astrocytomas depends on the hormonal status. The present investigation comprised data on serum cholesterol and P-lipoprotein concentration among 229 participants in a h...

An in ter est ing di a logue about the is sues raised by Gray and Salzman sur faced in the first round of re views, and it oc curred to us that this di a logue could be of value to the read ers of Hu man–Com puter In ter ac tion. We in vited a num ber of peo ple in the field to sub mit com men tar ies on the ar ti cle. These were re viewed and re vised, with all com men ta tors see ing each oth...

This paper describes a utility named ruf that reads files from an unmounted file system. The files are accessed by reading disk structures directly so the program is peculiar to the specific file system employed. The current implementation supports the *BSD FFS, SunOS/Solaris UFS, HPUX HFS, and Linux ext2fs file systems. All these file systems derive from the original FFS, but have peculiar dif...