S INCE there is an enormous production of corn in the United States, a complete knowledge of its nutritive value is of scientific interest and may be of great economic importance. Yellow dent corn is too low in protein and its protein is too deficient in essential amino acids, especially lysine and tryptophane, to be fed most efficiently to growing pigs in drylot without a good protein suppleme...

With the evolution of social living came the problem of forming, maintaining, advertising, and repairing social bonds between individuals (e.g. de Waal 1986, 1993). Affiliative contact behaviors such as grooming and socio-sexual behavior play an important role in the expression and negotiation of social bonds. In rare cases an affiliative contact behavior may be restricted largely to one sex. P...

for the existence of an approximate system of numerical representation. Such a system, commonly referred to as the “analog magnitude system,” seems to have no upper limit but is subject to a ratio limit in accordance with Weber’s Law, which states that the capacity to discriminate between two quantities becomes more accurate as the ratio between the smaller and the larger quantity increases (Be...

The risk of predation by sharks is considered to have a strong influence on dolphin behavior, especially group formation and habitat use (Heithaus 2001a). Although evidence of shark attacks on dolphins abounds (in the form of shark bite scars, shark stomach contents, etc.), there have been no published reports in which researchers have directly observed a shark attack on a dolphin in the wild. ...

Fungi, bacteria, mycoplasma, Spiroplasma, virus, viroid, phanerogamic plant parasites, and other macro pests are all agents, which lead to suffering of plants, this effects the tropic levels above producers who feeding on them for survival. Science pathology shouldn’t be confined humans itself (I mean understanding human diseases), it’s equally important that science must given equal importance...

Freese, C. H. e Oppenheimer, J. R. 1981. The capuchin monkeys, genus Cebus, p. 331 – 389. Em: A. F. Coimbra-Filho e R.A. Mittermeier (Ed.). Ecology and behavior of Neotropical primates. Rio de Janeiro, Academia Brasileira de Ciências, 496pp. Garber, P. A. 1989. The role of spatial memory in primate foraging patterns: Saguinus mystax and Saguinus fuscicollis. Am. J. Primatol. 19: 203 – 216. Hube...

At the recent World Conference of Family Doctors (WONCA) meeting in Orlando, I attended a session of presented papers related to medical education. One examined the degree to which Swedish GPs felt that a holistic approach was important to their work. Curiously, this paper was labeled in the programme as not eligible for CME credit. During the questions period, one attendee suggested that CME w...

We have investigated any permanent impact on development stages of Drosophila melanogaster in this study. Thus F1 and F2 generations of Drosophila melanogaster, obtained from parents that were fed in bottles containing SDM with test compounds of Fumonisin B1 chronically, were checked in terms of developmental stages of Drosophila melanogaster. But any effect has not been found. In addition to t...

Grass undoubtedly constitutes the major source of protein for stock-feeding in this country, and it is a surprising fact that our knowledge of the quality of this protein is so limited as to be almost negligible. Crampton (1934) and Crampton & Finlayson (1935), in the course of investigations into the nutritive value of young pasture grass and of certain pure species, in which they used the rab...

the differences of organic production. However, the exclusion of synthetic pesticides and fertilizers from organic systems is fundamental. Given this, the authors asked, why did the magnitude of differences in species density and abundance vary so much between the different groups they looked at? One factor may be the differential impacts of timing and special scales on the colonization traits ...