Search results for "VARIATION"
showing 10 items of 2124 documents
Genetic diversity for seed protein composition in Meticago truncatula
2005
International audience
La biodiversité microbienne des sols cartographiée
2009
Variations contemporaines autour des invariants anthropologiques : L'inceste, la production de l'enfant et le sacré
2012
"Dis poem is still not written." A Study of Diamesic Variation in Jamaican Dub Poetry
2020
International audience; This paper looks at diamesic variation in the works of Jamaican and Anglo-Jamaican dub poets such as Linton Kwesi Johnson, Benjamin Zephaniah and Mutabaruka. Dub poetry constitutes a turning point in the history of literature in Creole, since the genre achieved to establish Patwa as the legitimate medium for Caribbean writers, thereby effectively inverting (post)colonial linguistic hierarchies. Though closely associated with the reggae tradition, dub poets have always claimed to be doing “real” literature and published their work in written form as well as in audio or video recordings. The paper analyses various strategies to inscribe orality and orature in written t…
Identity Processes in Adulthood: Diverging Domains
2005
Patterns of identity formation were analyzed in a longitudinal framework, from ages 27 to 36 and then to 42 years of age. Information from all 3 ages was available for 197 participants (100 women, 97 men). A variation of Marcia’s (1966) Identity Status Interview included 5 domains: religious beliefs, political identity, occupational career, intimate relationships, and lifestyle. Great variability in identity status assessments was found across the domains at each age level. The domains representing work and family (occupation, relationships, and lifestyle) were more salient for middle- aged adults than were ideological domains (religion and politics). Development along the hypothesized sequ…
Management Practices and Allocation of Employment: Evidence from Finnish Manufacturing
2020
We analyse variation in the management practices across countries and across regions within a country. For cross-country comparisons we use the Finnish Management and Organizational Practices Survey (FMOP) to calculate a management score for Finnish manufacturing that is compared to corresponding measures obtained from similar data in the US and Germany. Scores measured by unweighted averages of the establishments in these countries show that Finland is only slightly behind the US and on par with those of Germany. With the FMOP data, we then perform an Olley-Pakes decomposition of the management score using a moment-based estimation procedure. Our decomposition shows no statistically signif…
Intraspecific variation in mating behaviour does not cause sexual isolation between Drosophila virilis strains
2005
There is increasing evidence that mate recognition systems vary within species. We studied the courtship rituals of five Drosophila virilis strains to investigate this intraspecific variation. Males that actively and persistently courted the female without paying much attention to the female's behaviour were the most successful at copulating. Intraspecific variation in mating rituals was high, but not as high as at the species level and it was not high enough to cause sexual isolation between the strains. The differences in courtship interactions of the strains reflected their geographical origin. Males from one of the strains did not produce audible song during their courtship, but still m…
Quantitative determination of casein genetic variants in goat milk: Application in Girgentana dairy goat breed
2016
The study was conducted to develop a high-performance liquid chromatographic (HPLC) method to quantify casein genetic variants (αs2-, β-, and κ-casein) in milk of homozygous individuals of Girgentana goat breed. For calibration experiments, pure genetic variants were extracted from individual milk samples of animals with known genotypes. The described HPLC approach was precise, accurate and highly suitable for quantification of goat casein genetic variants of homozygous individuals. The amount of each casein per allele was: αs2-casein A = 2.9 ± 0.8 g/L and F = 1.8 ± 0.4 g/L; β-casein C = 3.0 ± 0.8 g/L and C1 = 2.0 ± 0.7 g/L and κ-casein A = 1.6 ± 0.3 g/L and B = 1.1 ± 0.2 g/L. A good correl…
Epistatic interactions between pterin and carotenoid genes modulate intra-morph color variation in a lizard.
2021
Color polymorphisms have become a major topic in evolutionary biology and substantial efforts have been devoted to the understanding of the mechanisms responsible for originating such colorful systems. Within-morph continuous variation, on the other hand, has been neglected in most of the studies. Here, we combine spectrophotometric/visual modeling and genetic data to study the mechanisms promoting continuous variation within categorical color morphs of Podarcis muralis. Our results suggest that intra-morph variability in the pterin-based orange morph is greater compared to white and yellow morphs. We also show that continuous variation within the orange morph is partially discriminable by …