scholarly journals “The African family is large, very large” mobility and the flexibility of kinship – examples from Cameroon

Ethnography ◽  
2020 ◽  
Vol 21 (3) ◽  
pp. 335-354
Author(s):  
Peter Geschiere
Keyword(s):  
Talcott Parsons ◽  
Fixed Position ◽  
Subsequent Research ◽  
Dynamic View ◽  
Kinship Theory ◽  
Over Time

When I started fieldwork among the Maka in SE Cameroon in 1971 I was suprised that for them kinship was hardly about ascribing people a fixed position. In retrospect this makes me realize how deeply Talcott Parsons’ famous pattern variables – notably ‘ascription’ versus ‘achievement’ influenced our perspective. But Maka people turned out to be true masters in ‘working’-with kinship, constantly ‘discovering’ kin in unexpected contexts, making creative equations and switch-es. My subsequent research in the area (up till now) highlighted how over time this plasticity of their kinship arrangements increased with growing urbanization and even more with transcontinental migration. Cameroon’s famous ‘bush-fallers’ have developed their own ways for ‘working’ with kinship. However, this plasticity should not only be studied as stemming from new and shifting conditions. I hope to show as well that such a more dynamic view on kinship is valuable for re-evaluating classical kinship theory.

Europa Postmediaevalis 2020: Post-medieval pottery in the spare time

2021 ◽  
Author(s):  
◽  
Kristýna Matějková
Keyword(s):  
Early Modern ◽  
United Arab Emirates ◽  
Leisure Activities ◽  
Early Modern Period ◽  
Pottery Production ◽  
Subsequent Research ◽  
Modern Period ◽  
Spare Time ◽  
Medieval Pottery ◽  
Over Time

'Post-medieval pottery in the spare time' is a collection of papers planned for what would have been the second Europa Postmediaevalis conference. The focus is on the Early Modern period (15th to 18th centuries) and the growing use of new ceramic forms for leisure activities. Although the conference itself could not be held, due to the COVID-19 pandemic, the volume nevertheless brings together 28 contributions from authors from nine countries, from Portugal to Russia, from Italian Sardinia to Polish Stargard. A finds assemblage from the United Arab Emirates published by Portuguese colleagues, represents the tenth country. The volume comprises several subtopics which at first glance seem diverse. And yet, be they smoking, drinking coffee or alcohol, garden strolls or games, they share one thing in common: they are hobbies and vices enjoyed mainly in one’s free time. In the Early Modern period, these were typically activities of a rather luxurious nature, initially reserved for those with loftier positions in society but which, over time, gradually filtered down to the lower economic classes. It is therefore not surprising that the greater demand for new activities was also reflected in pottery production. As such, new ceramic forms such as cups, pipes and flowerpots began to appear in Early Modern archaeological assemblages and form the basis of this anthology. The volume will provide readers with useful comparison assemblages and serve as a source of inspiration for subsequent research.

scholarly journals Optimal inaccuracy: estimating male fitness in the movement-assisted dichogamous species Clerodendrum infortunatum

2020 ◽  
Author(s):  
Amritendu Mukhopadhyay ◽  
Suhel Quader
Keyword(s):  
General Characteristic ◽  
Male Fitness ◽  
Fixed Position ◽  
Dynamic Strategy ◽  
Exact Position ◽  
Male Phase ◽  
Total Pollen ◽  
Sexual Interference ◽  
Entire Male ◽  
Over Time

AbstractIn hermaphroditic species, sexual interference can drive the evolution of dichogamy, where sporophylls (reproductive parts) are separated in time. However, the separation of sporophylls can lead to pollination inaccuracy, especially in movement-assisted dichogamy, where sporophylls alter their position over time. Is pollination inaccuracy minimised by the second sporophyll taking the exact position of the first? Are the sporophylls optimally positioned and stable in their respective active phases? We address these questions in Clerodendrum infortunatum, a protandrous, movement-assisted dichogamous species. We made predictions from optimality arguments, and tested these by measuring sporophyll angles over time, by experimentally manipulating flowers, and by estimating correlates of the resultant fitness, taking into account pollen export, pollination inaccuracy and the resultant total pollen delivered. Contrary to expectation, anthers do not have a fixed position in the male phase, and pollination inaccuracy is high. Further, when pollen load is highest, anthers are paradoxically not positioned at the pollen export peak. Also, pollen export and pollination accuracy peaks do not align. This seeming maladaptiveness of anther positioning nevertheless results in highest overall male fitness, measured as the total pollen delivered over the entire male phase. Instead of a simple positional exchange of sporophylls, stamens display a more complicated dynamic strategy which appears close to optimal even though naive measures of pollination inaccuracy are high. Such a strategy of maximising overall male fitness, integrating over the dynamics of stamen trajectory, could well be a general characteristic of protandrous movement-assisted dichogamy.

scholarly journals Dynamic View Selection for OLAP

2011 ◽  
pp. 91-106
Author(s):  
Lawrence Michael ◽  
Rau-Chaplin Andrew
Keyword(s):  
Data Warehousing ◽  
Materialized Views ◽  
Challenging Problem ◽  
View Selection ◽  
Dynamic View ◽  
Aggregate Queries ◽  
Speed Up ◽  
Analytical Processing ◽  
Changes Over Time ◽  
Over Time

In a data warehousing environment, aggregate views are often materialized in order to speed up aggregate queries of online analytical processing (OLAP). Due to the increasing size of data warehouses, it is often infeasible to materialize all views. View selection, the task of selecting a subset of views to materialize based on updates and expectations of the query load, is an important and challenging problem. In this article, we explore dynamic view selection in which the distribution of queries changes over time and the set of materialized views must be tuned by replacing some of the previously materialized views with new ones.

Social transmission bias and the cultural evolution of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
David Hirshleifer ◽  
Siew Hong Teoh
Keyword(s):  
Cultural Evolution ◽  
Social Transmission ◽  
Cognitive Approach ◽  
Economic Problems ◽  
Economic Attitudes ◽  
The Social ◽  
Economic Beliefs ◽  
Over Time

AbstractEvolved dispositions influence, but do not determine, how people think about economic problems. The evolutionary cognitive approach offers important insights but underweights the social transmission of ideas as a level of explanation. The need for asocialexplanation for the evolution of economic attitudes is evidenced, for example, by immense variations in folk-economic beliefs over time and across individuals.

Articulatory Generalization in Two Word-Medial, Ambisyllabic Contexts

1988 ◽  
Vol 19 (3) ◽  
pp. 251-258 ◽  
Author(s):  
Virginia I. Wolfe ◽  
Suzanne D. Blocker ◽  
Norma J. Prater
Keyword(s):  
Common View ◽  
Perceptual Salience ◽  
The Common ◽  
Unitary Concept ◽  
Over Time

Articulatory generalization of velar cognates /k/, /g/ in two phonologically disordered children was studied over time as a function of sequential word-morpheme position training. Although patterns of contextual acquisition differed, correct responses to the word-medial, inflected context (e.g., "picking," "hugging") occurred earlier and exceeded those to the word-medial, noninflected context (e.g., "bacon," "wagon"). This finding indicates that the common view of the word-medial position as a unitary concept is an oversimplification. Possible explanations for superior generalization to the word-medial, inflected position are discussed in terms of coarticulation, perceptual salience, and the representational integrity of the word.

Treatment Fidelity Procedures for an Aphasia Intervention Within a Randomized Controlled Trial: Design, Feasibility, and Results

2020 ◽  
Vol 29 (1S) ◽  
pp. 412-424
Author(s):  
Elissa L. Conlon ◽  
Emily J. Braun ◽  
Edna M. Babbitt ◽  
Leora R. Cherney
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Treatment Protocol ◽  
Treatment Fidelity ◽  
Protocol Adherence ◽  
Study Condition ◽  
Randomized Controlled ◽  
Aphasia Therapy ◽  
Percent Accuracy ◽  
Over Time

Purpose This study reports on the treatment fidelity procedures implemented during a 5-year randomized controlled trial comparing intensive and distributed comprehensive aphasia therapy. Specifically, the results of 1 treatment, verb network strengthening treatment (VNeST), are examined. Method Eight participants were recruited for each of 7 consecutive cohorts for a total of 56 participants. Participants completed 60 hr of aphasia therapy, including 15 hr of VNeST. Two experienced speech-language pathologists delivered the treatment. To promote treatment fidelity, the study team developed a detailed manual of procedures and fidelity checklists, completed role plays to standardize treatment administration, and video-recorded all treatment sessions for review. To assess protocol adherence during treatment delivery, trained research assistants not involved in the treatment reviewed video recordings of a subset of randomly selected VNeST treatment sessions and completed the fidelity checklists. This process was completed for 32 participants representing 2 early cohorts and 2 later cohorts, which allowed for measurement of protocol adherence over time. Percent accuracy of protocol adherence was calculated across clinicians, cohorts, and study condition (intensive vs. distributed therapy). Results The fidelity procedures were sufficient to promote and verify a high level of adherence to the treatment protocol across clinicians, cohorts, and study condition. Conclusion Treatment fidelity strategies and monitoring are feasible when incorporated into the study design. Treatment fidelity monitoring should be completed at regular intervals during the course of a study to ensure that high levels of protocol adherence are maintained over time and across conditions.

Percutaneous Tracheostomy: A Multidisciplinary Approach

2008 ◽  
Vol 18 (2) ◽  
pp. 87-98 ◽  
Author(s):  
Vinciya Pandian ◽  
Thai Tran Nguyen ◽  
Marek Mirski ◽  
Nasir Islam Bhatti
Keyword(s):  
Health Care ◽  
Quality Assurance ◽  
Data Collection ◽  
Health Care Professionals ◽  
Multidisciplinary Approach ◽  
Percutaneous Tracheostomy ◽  
Johns Hopkins Hospital ◽  
Prospective Data ◽  
Comprehensive Service ◽  
Over Time

Abstract The techniques of performing a tracheostomy has transformed over time. Percutaneous tracheostomy is gaining popularity over open tracheostomy given its advantages and as a result the number of bedside tracheostomies has increased necessitating the need for a Percutaneous Tracheostomy Program. The Percutaneous Tracheostomy Program at the Johns Hopkins Hospital is a comprehensive service that provides care to patients before, during, and after a tracheostomy with a multidisciplinary approach aimed at decreasing complications. Education is provided to patients, families, and health-care professionals who are involved in the management of a tracheostomy. Ongoing prospective data collection serves as a tool for Quality Assurance.

High-Risk Youth Behaviors Decreasing Over Time

2008 ◽  
Vol 42 (7) ◽  
pp. 26-27
Author(s):  
MARY ELLEN SCHNEIDER
Keyword(s):  
High Risk ◽  
High Risk Youth ◽  
Over Time ◽  
Youth Behaviors
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