Some photographs leave us in no doubt. All photos of grand natural vistas undisturbed by any signs of human presence are indisputably ‘landscape photographs.’ When these scenes are bathed in the right light, they often evoke strong emotional responses. Mostly they make us wish we were there t...
mediate, and interpret a society's cultural patterns and provide the sense of oneness so critical for social solidarity. 社会学家通过对主要群组的观察将其比喻为独立的个体与整个社会之间的桥梁,因为他能转换,能调节,能解释一个社会文化符号并且能够表达个体的感情并最终将二者合而为...
IEEE 754 allows multiple distinct NaN values for each of its single and double floating-point formats. While each hardware architecture returns a particular bit pattern for NaN when a new NaN is generated, a programmer can also create NaNs with different bit patterns to encode, for example, re...
Why mushrooms have evolved to be so promiscuous: insights from evolutionary and ecological patterns. Fungal Biol. Rev. 29, 167–178 (2015). Google Scholar Hoekstra, R. F. On the asymmetry of sex: evolution of mating types in isogamous populations. J. Theor. Biol. 98, 427–451 (1982)...
RO Compton1, TD Williams-Coplin1, V Goff1, PW Chee4 and AH Paterson1 To explore types, levels and patterns of genetic divergence among diploid Gossypium (cotton) genomes, 780 cDNA, genomic DNA and simple sequence repeat (SSR) loci were re-sequenced in Gossypium herbaceum (A1 genome), G....
TYPES OF NATURAL SELCTION How Evolution Happens NATURAL SELECTION: RECALL: Result of the environment selecting for individuals with certain traits makes them better suited to survive and reproduce Over many generations, frequency of alleles of many different genes may change, resulting in significan...
The three most common types of cataracts are nuclear, cortical and posterior subcapsular cataracts. Each one affects a different part of your eye's lens. They're usually caused by natural changes inside your lens as you get older. There are other types of cataracts, too. Some develop after ...
A cultural type such as Beethoven's Fifth Symphony is a sound pattern that has the essential property of being used in the way specified by Beethoven's singling out of that pattern. (Natural types, such as bird songs or biological species, are patterns having places in actual causal chains ...
True experimental researchrelies on statistical analysis to prove or reject a hypothesis, which makes it the most accurate form of research. Quasi-experimental researchis also known as natural experiments because researchers don’t have complete control over the independent variables. For instance, resea...
For example, there was a positive relationship between plagiotropic forms and coniferous forests and between cushion- turf forms and natural grasslands. Anthropogenic habitats like vineyards and urban areas showed a high proportion of dendroid and thallose forms whereas plagiotropic species were ...