scholarly journals Comparing Timeline Rhythms in Pygmy and Bushmen Music

2018 ◽  
Vol 12 (3-4) ◽  
pp. 172 ◽  
Author(s):  
Adrian Poole
Keyword(s):  
Population Genetics ◽  
Phylogenetic Analysis ◽  
Radical Change ◽  
Social Contexts ◽  
Structural Basis ◽  
Ancestral Group ◽  
Generative Theory ◽  
Musical Cultures ◽  
Anthropological Research ◽  
Musical Analyses

Combining theories of African rhythm from ethno/musicology and findings from anthropological research and population genetics with musical analyses based on transcriptions and computational phylogenetic techniques, this article compares rhythms used in Pygmy and Bushmen music in an attempt to provide new perspectives on an old debate that these musical cultures may share a common heritage. To do this, the comparative analyses focus on timelines: foundational rhythmic features that provide the structural basis of the music. The findings suggest that Pygmy and Bushmen timelines are interrelated and that most are organised according to the principles of 'rhythmic oddity' and maximal evenness. Generative theory suggests that commonly used rhythmic cells, in particular the 3:2 pattern, form the structural basis of many Pygmy/Bushmen timelines as well as many other timelines featured in African and African-derived musics. Timelines are also multi-purpose musical devices used in various different social contexts and their structure appears to be resilient to radical change. Phylogenetic analysis of timelines provides no clear Pygmy/Bushmen ancestral timeline, although it is possible that foundational rhythms such as the 3:2 pattern may have featured in the music of a common ancestral group.

Generics in society

2021 ◽  
Vol 50 (4) ◽  
pp. 517-532
Author(s):  
Susan A. Gelman
Keyword(s):  
Academic Writing ◽  
Social Life ◽  
Meaning Making ◽  
Social Contexts ◽  
Anthropological Research ◽  
Generic Language ◽  
Contemporary Work ◽  
Positive Functions ◽  
Context Free

ABSTRACTThis article examines two interrelated issues: (i) how considering generics within their social contexts of use contributes to theories of generics, and (ii) how contemporary work on generics provides promising directions for the study of language as an aspect of social life. Examining the function of generics in meaningful interactions stands in contrast to standard treatments, which consider generics as isolated, context-free propositions. Additionally, recent psychological approaches suggest new questions that can enrich sociolinguistic and linguistic anthropological research. These include, for example, when and why generics serve not just negative functions (such as stereotyping) but also positive functions (such as meaning-making), how generics gain their power from what is unstated as opposed to stated, and how generic language distorts academic writing. Ultimately, the study of language in society has the potential to enrich the study of generics beyond what has been learned from their study in linguistics, philosophy, and psychology. (Generics, concepts, categories, stereotyping, induction)*

Terminology Used to Describe Human Variation in Forensic Anthropology

2021 ◽  
Author(s):  
Marin Pilloud ◽  
Cassie Skipper ◽  
SaMoura Horsley ◽  
Alba Craig ◽  
Krista Latham ◽  
...  
Keyword(s):  
Forensic Anthropology ◽  
Social Contexts ◽  
Forensic Sciences ◽  
Research Approach ◽  
Human Variation ◽  
Systemic Racism ◽  
Ancestry Estimation ◽  
Anthropological Research ◽  
Continued Use ◽  
The U.S

To understand the implications of the forensic anthropological practice of “ancestry” estimation, we explore terminology that has been employed in forensic anthropological research. The goal is to evaluate how such terms can often circulate within social contexts as a result, which may center forensic anthropologists as constituting “race” itself through analysis and categorization. This research evaluates terminology used in anthropological articles of the Journal of Forensic Sciences between 1972 and 2020 (n = 314). Terminology was placed into two categories: classifiers and descriptors. Classifiers were standardized into one of five options: “race,” “ancestry,” “population,” “ethnic,” or “other.” Descriptors included terms used to describe individuals within these classificatory systems. We also compared these terms to those in the NamUs database and the U.S. census. Our results found that the terms “ancestry” and “race” are often conflated and “ancestry” largely supplanted “race” in the 1990s without a similar change in research approach. The NamUs and census terminology are not the same as that used in forensic anthropological research; illustrating a disconnect in the terms used to identify the missing, unidentified, and in social contexts with those used in anthropological research. We provide histories of all of these terms and conclude with suggestions for how to use terminology in the future. It is important for forensic anthropologists to be cognizant of the terms they use in medicolegal contexts, publications, and in public and/or professional spaces. The continued use of misrepresentative and improper language further marginalizes groups and perpetuates oppression rooted in systemic racism.

Population genetics and phylogenetic analysis of the vrs1 nucleotide sequence in wild and cultivated barley

Genome ◽  
2014 ◽  
Vol 57 (4) ◽  
pp. 239-244 ◽  
Author(s):  
Xifeng Ren ◽  
Yonggang Wang ◽  
Songxian Yan ◽  
Dongfa Sun ◽  
Genlou Sun
Keyword(s):  
Population Genetics ◽  
Phylogenetic Analysis ◽  
Genetic Variation ◽  
Hordeum Vulgare ◽  
Nucleotide Diversity ◽  
Wild Barley ◽  
Haplotype Diversity ◽  
Lateral Spikelet ◽  
Cultivated Barley ◽  
Barley Population

Spike morphology is a key characteristic in the study of barley genetics, breeding, and domestication. Variation at the six-rowed spike 1 (vrs1) locus is sufficient to control the development and fertility of the lateral spikelet of barley. To study the genetic variation of vrs1 in wild barley (Hordeum vulgare subsp. spontaneum) and cultivated barley (Hordeum vulgare subsp. vulgare), nucleotide sequences of vrs1 were examined in 84 wild barleys (including 10 six-rowed) and 20 cultivated barleys (including 10 six-rowed) from four populations. The length of the vrs1 sequence amplified was 1536 bp. A total of 40 haplotypes were identified in the four populations. The highest nucleotide diversity, haplotype diversity, and per-site nucleotide diversity were observed in the Southwest Asian wild barley population. The nucleotide diversity, number of haplotypes, haplotype diversity, and per-site nucleotide diversity in two-rowed barley were higher than those in six-rowed barley. The phylogenetic analysis of the vrs1 sequences partially separated the six-rowed and the two-rowed barley. The six-rowed barleys were divided into four groups.

scholarly journals Influence of Long-Term Communist Confrontation on Inducing Changes in Society and Musical Culture of Hmong Ethnic Group in Thailand

2019 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Komphorn Prachumwan ◽  
Chalermpol Ataso
Keyword(s):  
Ethnic Group ◽  
Social Contexts ◽  
Social Changes ◽  
Contributing Factors ◽  
Musical Culture ◽  
The Social ◽  
Musical Cultures ◽  
Original Musical ◽  
Culture Tradition

The ethnic group ‘Hmong’, the descendants of Chinese ‘Miao’ group who migrated south to reside in Northern Thailand, is known to possess their own unique arts, culture, tradition, and music. However, the influence of social change seemed to largely affect the musical culture of Hmong ethnic, Khao Kho District, Phetchabun Province, in a multifactorial manner. Through different phases of a series of communist wars, the original musical cultures were subjected to the cumulative changes of social contexts, evolving toward modernization, at a great extent. In addition, not only the social changes have had a large impact on the Hmong ethnic’s musical cultures, but also on their ritual performances that require music as its core. This study aimed to elucidate the effect of social changes on musical culture by identifying the key contributing factors that determined Hmong’s musical performances and appreciation based on their historical features.

scholarly journals Czysto ludzka sprawa? Archeologiczne przywracanie pamięci o trudnej przeszłości przez tropienie naturo-kulturowych przemian cmentarzy wojennych

2019 ◽  
Vol 23 ◽  
pp. 189-229
Author(s):  
Anna Zalewska ◽  
Dorota Cyngot ◽  
Jacek Czarnecki ◽  
Grzegorz Kiarszys
Keyword(s):  
Remote Sensing ◽  
Social Contexts ◽  
Great War ◽  
Cultural Transformations ◽  
Material Condition ◽  
Archaeological Methods ◽  
Natural Factors ◽  
Anthropological Research ◽  
The Great War ◽  
Future Condition

In this article the outcomes of historical, archaeological, spatial and anthropological research concerning material remnants of the war cemeteries left by the Great War in Central Poland, in the area of Rawka and Bzura are presented. On the example of one of the four communes (Nowa Sucha) subjected to research under the project Archaeological Revival of Memory of the Great War (ARM), the processes of creation, transformation, decay, destruction and re-making present the resting places of the soldiers fallen between December 1914 and July 1915 are shown. In the first part, we sketch the output atmosphere that accompanied the primary context in which war cemeteries were established and place the war cemeteries in the network of social, formal and legal determinants. In the second part, we frame the historical and social contexts in which the resting places of the fallen soldiers of the German and Russian armies were massively created. Than, we show the difficulties associated with locating particular war cemeteries and signal strengths and obstacles in correlating results of archival research and use of remote sensing and archaeological methods in order to restore the memory of war cemeteries and establish their current and future condition as material warnings. Also we stress the looping of cultural and natural factors both in the process of protecting and destroying material condition of war cemeteries. Finally, on the example of one of the cemeteries we show how slow and arduous but at the same time promising can be the process of transformation from a forgotten/plowed cemetery into a place of/in memory, and as an agent struggling with the continuous nature-cultural transformations.

scholarly journals Analysis of 46,046 SARS-CoV-2 whole-genomes leveraging principal component analysis (PCA)

2020 ◽  
Author(s):  
Christiane Scherer ◽  
James Grover ◽  
Darby Kammeraad ◽  
Gabe Rudy ◽  
Andreas Scherer
Keyword(s):  
Principal Component Analysis ◽  
Population Genetics ◽  
Phylogenetic Analysis ◽  
Principal Component ◽  
Large Data ◽  
Component Analysis ◽  
Comprehensive Analysis ◽  
Large Data Sets ◽  
Data Sets ◽  
Whole Genomes

AbstractSince the beginning of the global SARS-CoV-2 pandemic, there have been a number of efforts to understand the mutations and clusters of genetic lines of the SARS-CoV-2 virus. Until now, phylogenetic analysis methods have been used for this purpose. Here we show that Principal Component Analysis (PCA), which is widely used in population genetics, can not only help us to understand existing findings about the mutation processes of the virus, but can also provide even deeper insights into these processes while being less sensitive to sequencing gaps. Here we describe a comprehensive analysis of a 46,046 SARS-CoV-2 genome sequence dataset downloaded from the GISAID database in June of this year.SummaryPCA provides deep insights into the analysis of large data sets of SARS-CoV-2 genomes, revealing virus lineages that have thus far been unnoticed.

scholarly journals Abstract P-33: Structural Basis for the Growing Microtubule End Recognition by End Binding Proteins

2021 ◽  
Vol 11 (Suppl_1) ◽  
pp. S26-S26
Author(s):  
Alena Korshunova
Keyword(s):  
Amino Acids ◽  
Phylogenetic Analysis ◽  
Amino Acid ◽  
Molecular Mechanism ◽  
Binding Proteins ◽  
Dynamic Instability ◽  
3D Structure ◽  
Structural Basis ◽  
Microtubule Dynamic ◽  
Gtp Hydrolysis

Background: Eukaryotic end binding proteins (EBs) can follow the growing microtubule end. EBs play a crucial role in microtubule dynamic instability and promote simultaneously growth rate and catastrophe frequency. It makes EB-like proteins perspective drag targets for a wide number of diseases. But the molecular mechanism of tip tracking by EB-like proteins remains unknown. Studies of mutants have revealed that the conservative amino acid Q102 (numbering relative to the human EB1 protein) plays a key role in the recognition of the growing microtubule end. However, the 3D structure studies revealed that this amino acid has no bonds with tubulin. In this work, we performed structural and phylogenetic analysis of EBs proteins to identify a possible molecular mechanism behind the plus end tracking. Methods: UCSF Chimera10 was used for structural analysis. Phylogenetic analysis was performed with MEGA X software. 3D structures of EBs and microtubules with different states of GTP hydrolysis were used (pdb 3JAK, 3JAS, 3JAT, 3JAW, 3JAL, 3JAR, 6DPU, 6DPV, 6DPW). Results: We have shown that two conservative amino acids (K100, E106) should play an important role in the recognition of the microtubule plus end in addition to Q102. It was concluded that these amino acids together form the plus-end «navigation site» of EBs. Analysis of possible interaction of the «navigation site» amino acids with microtubules in different conformational states suggested that the main mechanism of growing microtubule end recognition is not due to an affinity increase for a certain state of tubulin in microtubules at their end, but it due to a significant affinity decrease in other parts of the microtubule as a result of steric clashes. Conclusion: Thus, the results of the analysis suggested the possible molecular mechanism that provides the tip tracking by EB-like proteins and allowed us to identify the key amino acids of this mechanism.

Population genetics and phylogenetic analysis of Colorado Borrelia burgdorferi.

1999 ◽  
Vol 60 (4) ◽  
pp. 699-707 ◽  
Author(s):  
D E Norris ◽  
J L Clark ◽  
W C Black ◽  
B J Johnson ◽  
G O Maupin ◽  
...  
Keyword(s):  
Population Genetics ◽  
Phylogenetic Analysis ◽  
Borrelia Burgdorferi

scholarly journals Analogy, Homology, and Rhythmic Phylogeny: Commentary on Adrian Poole's "Comparing Timeline Rhythms in Pygmy and Bushmen Music"

2018 ◽  
Vol 12 (3-4) ◽  
pp. 194
Author(s):  
Justin London
Keyword(s):  
Phylogenetic Analysis ◽  
Convergent Evolution ◽  
Common Origin ◽  
Musical Cultures ◽  
Musical Practices

In his article "Comparing Timeline Rhythms in Pygmy and Bushmen Music," Adrian Poole uses computational phylogenetic analysis to assess the similarity between canonical rhythmic patterns from two African musical cultures. He then uses these analyses to evaluate previous claims of a common origin for their (now) distinct musical practices. Poole was unable to find clear evidence of a common origin, and here I provide additional analyses of these timelines casting further doubt on such claims. Instead, I offer a perspective from convergent evolution/sociobiology which can account for the broad similarities that exist between these two sets of timelines. I conclude with a critique of the claim of Poole and others that African timelines and the musical cultures in which they appear are especially resistant to change.

Organization of tight junctions in the choroid plexus epithelium

1978 ◽  
Vol 36 (2) ◽  
pp. 336-337
Author(s):  
B. Van Deurs ◽  
J. K. Koehler
Keyword(s):  
Choroid Plexus ◽  
Present Report ◽  
Freeze Fracture ◽  
Barrier Properties ◽  
Cell Junctions ◽  
Structural Basis ◽  
Apical Surface ◽  
Choroid Plexus Epithelium ◽  
Solid Nitrogen ◽  
Special Composition

The choroid plexus epithelium constitutes a blood-cerebrospinal fluid (CSF) barrier, and is involved in regulation of the special composition of the CSF. The epithelium is provided with an ouabain-sensitive Na/K-pump located at the apical surface, actively pumping ions into the CSF. The choroid plexus epithelium has been described as “leaky” with a low transepithelial resistance, and a passive transepithelial flux following a paracellular route (intercellular spaces and cell junctions) also takes place. The present report describes the structural basis for these “barrier” properties of the choroid plexus epithelium as revealed by freeze fracture.Choroid plexus from the lateral, third and fourth ventricles of rats were used. The tissue was fixed in glutaraldehyde and stored in 30% glycerol. Freezing was performed either in liquid nitrogen-cooled Freon 22, or directly in a mixture of liquid and solid nitrogen prepared in a special vacuum chamber. The latter method was always used, and considered necessary, when preparations of complementary (double) replicas were made.

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