Results 61 to 70 of about 3,138,101 (337)

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Wide-scale geographical analysis of genetic ancestry in the South African Coloured population

open access: yesBMC Biology
Background The South African Coloured (SAC) population, a prominent admixed population in South Africa, reflects centuries of migration, admixture, and historical segregation.
Imke Lankheet   +8 more
doaj   +1 more source

Blogs as Elusive Ethnographic Texts

open access: yesInternational Journal of Qualitative Methods, 2017
Burgeoning online environments offer completely new opportunities for ethnographic and other forms of qualitative research. Yet there are no clear standards for how we study online texts from an ethnographic perspective.
Liza C. Kurtz   +4 more
doaj   +1 more source

A need for an update of Polish birth weight reference norms

open access: yesAnthropological Review, 2020
The indicators of perinatal outcome are birth weight and gestational age. The standard method of assessing the outcome is comparing the newborn’s birth weight with the reference system, presented in the form of percentile charts. Acceleration or delay in
Hadada Tomasz, Kosińska Magdalena
doaj   +1 more source

Evolution and Mirror Neurons. An Introduction to the Nature of Self-Consciousness [PDF]

open access: yes, 2005
Self-consciousness is a product of evolution. Few people today disagree with the evolutionary history of humans. But the nature of self-consciousness is still to be explained, and the story of evolution has rarely been used as a framework for studies on ...
Menant, Christophe
core  

Quadruple context-free L-System mathematical tools as origin of biological evolution [PDF]

open access: yes, 2010
It is well known that A, T, G, C annealed together early in evolution and the long stretch of DNA was found which ultimately resulted into chromosomes of different organisms.
Arunava Goswami   +4 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

3D techniques and fossil identification: An elephant shrew hemi-mandible from the Malapa site

open access: yesSouth African Journal of Science, 2011
Conventional methods for extracting fossilised bones from calcified clastic sediments, using air drills or chemical preparations, can damage specimens to the point of rendering them unidentifiable.
Aurore Val   +6 more
doaj  

Mechanism of expression regulation of head-to-head overlapping protein-coding genes INO80E and HIRIP3

open access: yesCommunications Biology
Although the existence of overlapping protein-coding genes in eukaryotic genomes is known for decades, their role in regulating expression remains far from fully understood. Here, the mechanism regulating the expression of head-to-head overlapping genes,
Natalia Ryczek   +4 more
doaj   +1 more source

Hard paths, soft paths or no paths? Cross-cultural perceptions of water solutions [PDF]

open access: yesHydrology and Earth System Sciences, 2014
In this study, we examine how development status and water scarcity shape people's perceptions of "hard path" and "soft path" water solutions. Based on ethnographic research conducted in four semi-rural/peri-urban sites (in Bolivia, Fiji, New Zealand ...
A. Wutich   +5 more
doaj   +1 more source

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