scholarly journals Seriation, Superposition, and Interdigitation: A History of Americanist Graphic Depictions of Culture Change

1998 ◽  
Vol 63 (2) ◽  
pp. 239-261 ◽  
Author(s):  
R. Lee Lyman ◽  
Steve Wolverton ◽  
Michael J. O’Brien

Histories of Americanist archaeology regularly confuse frequency seriation with a technique for measuring the passage of time based on superposition—percentage stratigraphy—and fail to mention interdigitation as an important component of some percentage-stratigraphic studies. Frequency seriation involves the arrangement of collections so that each artifact type displays a unimodal frequency distribution, but the direction of time's flow must be determined from independent evidence. Percentage stratigraphy plots the fluctuating frequencies of types, but the order of collections is based on their superposition, which in turn illustrates the direction of time's flow. Interdigitation involves the integration of sets of percentage-stratigraphy data from different horizontal proveniences under the rules that (1) the order of superposed collections cannot be reversed and (2) each type must display a unimodal frequency distribution. Ceramic stratigraphy is similar to occurrence seriation, as both focus on the presence-absence of types with limited temporal distributions—index fossils—but the former uses the superposed positions of types to indicate the direction of time"s flow, whereas occurrence seriation does not.

2020 ◽  
Vol 9 (2) ◽  
pp. 1017-1026
Author(s):  
Desi Natalia Trijayanti Idris ◽  
Dian Taviyanda ◽  
Srinalesti Mahanani

Acute myocardial infarction (AMI) is a disease that has a high mortality. Usually happens to anyone and regardless of age, both male and female. The purpose of this study was to describe the characteristics of acute myocardial infarction patients hospitalized. This study uses a descriptive design. The variables used in this study were the characteristics of acute myocardial infarction patients consisting of gender, age, education, history of hypertension, history of diabetes mellitus, family history of acute myocardial infarction, blood pressure and pulse frequency. The number of samples used was 35 respondents who analyzed the data using a frequency distribution. The results showed that the characteristics of 35 respondents showed that the majority of AMI patients occurred in men, namely 60%, the majority were aged 56-60, namely 34.3%, the majority had a history of hypertension, diabetes mellitus and also a family history of having AMI. 


2007 ◽  
Vol 36 (1) ◽  
pp. 6-20 ◽  
Author(s):  
Robyn Hewitson

AbstractThe history of remote school education in the Northern Territory can best be summarised as years of lost opportunities, pedagogies of discrimination, and diminished lives for those parents and children who trusted and responded to the government’s invitation to come to school. From late 2001 to 2005 historic educational change occurred in the remote Community Education Centre of Kalkaringi and Daguragu in the Northern Territory, the site for the delivery of the Northern Territory’s first Year 12 Indigenous graduates studying in their own community school. At the heart of the historic achievement was a radical change in thinking about education for Indigenous students. This paper discusses some of the policy parameters and educational circumstances that prevented significant change in the delivery model of education for the Community Education Centres in addition to a conceptualisation of how that school circumvented the policy parameters and instituted real change from the ground up. The paper examines, through a critical lens, the nature of the culture change that was crafted and built upon within Kalkaringi School and its communities, despite an initial and significant sense of powerlessness felt by families and to some extent the teachers and principal within the school. Through the development and embrace of a metaphor of possibility and hope - the challenge of climbing the educational mountain formed the foundation for a dedicated and committed enactment of an equitable educational entitlement for remote Indigenous students.


2008 ◽  
Vol 73 (2) ◽  
pp. 361-370
Author(s):  
Donna C. Roper

Lyman et al.’s recent history of graphic depictions of culture change attributes the first use of bar graphs to James Ford in 1935. Ford, though, was anticipated in 1915 by Frederick Sterns, working with pottery from 27 late prehistoric Nebraska phase lodge sites in eastern Nebraska. Sterns used both tabular data summaries and divided bar graphs to show ordered variation over space in vessel neck diameter, types of appendages, and type of decoration. Underlying this analysis was a conception of these dimensions as varying independently of one another. Geographic groups within the Nebraska phase therefore exhibit clinal variation and can be characterized by differing proportions of attributes. Sterns’s work never became very well-known as archaeologists on the Central Plains turned to typological analysis for organizing pottery assemblages.


2014 ◽  
Vol 3 (3) ◽  
Author(s):  
Intan Irfa ◽  
Irvan Medison ◽  
Detty Iryani

AbstrakHemoptisis adalah ekspektorasi darah yang berasal dari saluran pernafasan bagian bawah dengan jumlah minimal hingga masif yang dapat membahayakan jiwa. Etiologi hemoptisis seperti infeksi, neoplasma dan kelainan kardiovaskular berbeda kekerapannya di berbagai negara. Di Indonesia dan negara berkembang lainnya, tuberkulosis paru merupakan penyebab utama hemoptisis. Tujuan penelitian ini adalah untuk mengetahui gambaran kejadian hemoptisis pada pasien di bangsal paru RSUP Dr. M. Djamil Padang periode Januari 2011 – Desember 2012. Metode yang digunakan adalah deskriptif secara retrospektif menggunakan data rekam medis pasien rawat inap dengan hemoptisis di bangsal paru RSUP Dr. M. Djamil Padang periode Januari 2011 – Desember 2012. Hasil penelitian menunjukkan bahwa sejak Januari 2011 – Desember 2012 terdapat 103 kejadian hemoptisis dan prevalensi kejadiannya sebesar 3,6%. Sebagian besar pasien dengan hemoptisis adalah laki-laki (65%) dengan kelompok usia terbanyak yaitu 31 – 40 tahun. Sementara distribusi frekuensi pasien dengan hemoptisis berdasarkan riwayat pendidikan terbanyak yaitu tamat SLTA (32%), berdasarkan pekerjaan adalah ibu rumah tangga (29,1%) dan sebagian besar berdomisili di Kota Padang. Klasifikasi hemoptisis terbanyak adalah hemoptisis sedang (34%) dengan etiologi utama tuberkulosis paru (47,6%). Pada penelitian ini didapat angka kematian pasien sebesar 6,8% dari total kejadian hemoptisis.Kata kunci: hemoptisis, prevalensi, tuberkulosis AbstractHemoptysis is expectoration of blood from the lower respiratory tract that varies in amount of blood from small amount to the massive amount and can become threaten of life. The etiology of hemoptysis such as infection, neoplasm and cardiovascular disorder are vary over the world. In Indonesia and other developed countries, pulmonary tuberculosis is a main etiology of hemoptysis. The purpose of this study is to determine the profile of hemoptysis among patients admitted in Pulmonary Department of Dr. M. Djamil Hospital Padang period January 2011 – December 2012. This research was a descriptive survey based on retrospective study design that reviewed the medical record of hospitalized patients with hemoptysis in Pulmonary Department of Dr. M. Djamil Hospital period January 2011 – December 2012. The result has shown that since January 2011 – December 2012 there were 103 patients with hemoptysis, and the prevalence of hemoptysis is 3.6%. Most of patients with hemoptysis are male (65%) with highest frequency distribution based on age group of patients is 31 – 40 years old. While the highest frequency distribution based on patients’ history of education is high school diploma (32%), based on patients’ profession is housewife (29.1%) and most of patients live in Padang. Moderate hemoptysis (34%) were the highest frequency distribution based on classification of hemoptysis, with pulmonary tuberculosis as the main etiology (47.6%). Mortality rate of patients with hemoptysis in this study was 6,8% of all hemoptysis cases.Keywords: hemoptysis, prevalence, tuberculosis


2021 ◽  
Vol 5 (2) ◽  
pp. 148-151
Author(s):  
Адалат Бахтияр Пашаев ◽  
Ельхан Наріман оглу Сабзієв ◽  
Аріф Гасан огли Гасанов

The problem of radio frequency distribution is considered in the article, taking into account the regulations and geographical location of the operating units. The problem of assigning radio frequencies from among those assigned for corporate use is studied. Using conformal mapping, it was substantiated that any territory can be divided into zones, each of which will have a border with only three other zones. In this case, in each zone, you can assign frequencies in the amount of one quarter of the total number of available frequencies that do not overlap with frequencies assigned to adjacent zones. A mathematical model of the problem of radio frequency redistribution has been built, taking into account the regulations and the geographical location of the units. The implementation of algorithm allows taking into account the history of frequency distribution by zones, which allows you to completely update the used radio frequencies for a new period of operation. A software module has been compiled that generates frequencies at random from those available for assigning corporate use for each zone. The software module allows fast and frequent reallocation of frequencies by zones, thereby ensuring the safety, reliability and stability of communication between organizational units.


2020 ◽  
Author(s):  
Nouh Saad Mohamed ◽  
Emmanuel E. Siddig ◽  
Abdallah E. Ahmed ◽  
Musab MA. Albsheer ◽  
Hanadi Abdelbagi ◽  
...  

Abstract Objectives: IL-17A G197A and IL-17F A7488G polymorphisms has been identified to be associated with the susceptibility to many diseases. This study aimed to investigate the frequency distribution of IL-17A G197A and IL-17F A7488G polymorphisms among healthy Sudanese population. A descriptive cross-sectional hospital-based molecular study conducted in different sites throughout Sudan. Two ml blood samples were collected from 717 healthy participants. Demographic data and the medical history of the participants were collected.Results: Of the 717 participants, 355 (49.5%) were males and 362 (50.5%) were females, their mean age was 30.2±17.2 and 32.2±16.5, respectively. For IL-17A, the most frequent genotype detected among males and females was IL-17A heterozygote allele (AG); 215 (60.6%) and 194 (53.6%), respectively. Whereas, for IL-17F, the most frequent allele among males and females was the homozygote allele (AA); 298 (83.9%) for males and 322 (89.0%) for females. HWE for genotype distributions of IL-17A was showing statistical insignificance for IL-17A among males and females, P value 0.614. While HWE for IL-17F reached the equilibrium level, P value 0.048. The most frequent age group was those aged between 21 to 40 years; 281 (39.2%). Arab constituted the major ethnicity of the study participants; 418 (58.3%), P value 0.034.


2020 ◽  
Author(s):  
Nouh Saad Mohamed ◽  
Emmanuel E. Siddig ◽  
Abdallah E. Ahmed ◽  
Musab MA. Albsheer ◽  
Hanadi Abdelbagi ◽  
...  

Abstract Objectives: IL-17A G197A and IL-17F A7488G polymorphisms has been identified to be associated with the susceptibility to many diseases. This study aimed to investigate the frequency distribution of IL-17A G197A and IL-17F A7488G polymorphisms among healthy Sudanese population. A descriptive cross-sectional hospital-based molecular study conducted in different sites throughout Sudan. Two ml blood samples were collected from 717 healthy participants. Demographic data and the medical history of the participants were collected.Results: Of the 717 participants, 355 (49.5%) were males and 362 (50.5%) were females, their mean age was 30.2±17.2 and 32.2±16.5, respectively. For IL-17A, the most frequent genotype detected among males and females was IL-17A heterozygote allele (AG); 215 (60.6%) and 194 (53.6%), respectively. Whereas, for IL-17F, the most frequent allele among males and females was the homozygote allele (AA); 298 (83.9%) for males and 322 (89.0%) for females. HWE for genotype distributions of IL-17A was showing statistical insignificance for IL-17A among males and females, P value 0.614. While HWE for IL-17F reached the equilibrium level, P value 0.048. The most frequent age group was those aged between 21 to 40 years; 281 (39.2%). Arab constituted the major ethnicity of the study participants; 418 (58.3%), P value 0.034.


2017 ◽  
Author(s):  
Mario E. Muscarella ◽  
James P. O’Dwyer

Bacteria and Archaea represent the base of the evolutionary tree of life and contain the vast majority of phylogenetic and functional diversity. Because these organisms and their traits directly impact ecosystems and human health, a focus on functional traits has become increasingly common in microbial ecology. These trait-based approaches have the potential to link microbial communities and their ecological function. But an open question is how, why, and in what order microorganisms acquired the traits we observe in the present day. To address this, we reconstructed the evolutionary history of microbial traits using genomic data to understand the evolution, selective advantage, and similarity of traits in extant organisms and provide insights into the composition of genomes and communities. We used the geological timeline and physiological expectations to provide independent evidence in support of this evolutionary history. Using this reconstructed evolutionary history, we explored hypotheses related to the composition of genomes. We showed that gene transition rates can be used to make predictions about the size and type of genes in a genome: generalist genomes comprise many evolutionarily labile genes while specialist genomes comprise more highly conserved functional genes. These findings suggest that generalist organisms do not build up and hoard an array of functions, but rather tend to experiment with functions related to environmental sensing, transport, and complex resource degradation. Our results provide a framework for understanding the evolutionary history of extant microorganisms, the origin and maintenanceof traits, and linking evolutionary relatedness and ecological function.


2020 ◽  
Author(s):  
Nouh Saad Mohamed ◽  
Emmanuel E. Siddig ◽  
Abdallah E. Ahmed ◽  
Musab MA. Albsheer ◽  
Hanadi Abdelbagi ◽  
...  

Abstract Objectives IL-17A G197A and IL-17F A7488G polymorphisms has been identified to be associated with the susceptibility to many diseases. This study aimed to investigate the frequency distribution of IL-17A G197A and IL-17F A7488G polymorphisms among healthy Sudanese population. A descriptive cross-sectional hospital-based molecular study conducted in different sites throughout Sudan. Two ml blood samples were collected from 717 healthy participants. Demographic data and the medical history of the participants were collected.Results Of the 717 participants, 355 (49.5%) were males and 362 (50.5%) were females, their mean age was 30.2 ± 17.2 and 32.2 ± 16.5, respectively. For IL-17A, the most frequent genotype detected among males and females was IL-17A heterozygote allele (AG); 215 (60.6%) and 194 (53.6%), respectively. Whereas, for IL-17F, the most frequent allele among males and females was the homozygote allele (AA); 298 (83.9%) for males and 322 (89.0%) for females. HWE for genotype distributions of IL-17A was showing statistical insignificance for IL-17A among males and females, P value 0.614. While HWE for IL-17F reached the equilibrium level, P value 0.048. The most frequent age group was those aged between 21 to 40 years; 281 (39.2%). Arab constituted the major ethnicity of the study participants; 418 (58.3%), P value 0.034.


2020 ◽  
Author(s):  
Mark Brandon ◽  
Lucas Fennell ◽  
Michael Hren ◽  
Jiashun Hu ◽  
Lijun Liu

<p>We report new results for the topographic evolution of the eastern flank of the South-Central Andes at ~35 S latitude. Our work is based on a piggy-back basin near Malargüe, Argentina, which provides a continuous stratigraphic record from 55 to 10 Ma. We have separated volcanic glass and measured hydrogen isotopes (δD) from 107 samples. Studies over the last several decades show that volcanic glass will take up precipitation water by hydration on a 1 to 10 ka time scale. This reaction is irreversible, and later diffusive exchange is too slow to alter the initial isotopic composition. Thus, we conclude that our data provide a record of the isotopic composition of precipitation for most of the Cenozoic. Empirical and theoretical work indicate that the isotopic composition of precipitation decreases in a linear fashion with increasing orographic lifting. We have calibrated this relationship by isotopic modeling of modern water isotopes (152 samples) at 35 S across Chile and Argentina, and that work indicates a lifting relationship for precipitation δD ~20‰/km.</p><p>Our glass isotope record shows a steady decrease in δD through the Cenozoic, which matches well with the isotopic response predicted for global cooling at that time. After correction for this climate effect, our glass isotope record indicates that the Marlargüe region had a steady elevation from 55 to 20 Ma, and then was subjected to a cycle of 1 km of subsidence and an equivalent amount of rebound, between 20 to 0 Ma. </p><p>Ongoing geodynamic modeling provides independent evidence of a large subsidence event in this region of South America as determined from the history of slab age and subduction velocity, both constrained by plate kinematics. This dynamic subsidence would have affected both the Andes and the eastern “retroarc” basin. Previous workers have viewed the subsidence history of the retroarc basin as providing a diagnostic record of the growth and decay of orogenic topography, but our work shows that subduction-induced dynamic topography can produce effects of similar magnitude.</p>


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