Marriage of Near Kin among the Tswana

Africa ◽  
1957 ◽  
Vol 27 (2) ◽  
pp. 139-159 ◽  
Author(s):  
I. Schapera
Keyword(s):  
Detailed Analysis ◽  
The Past ◽  
New Material

IntroductionIn a paper written at the end of 1946 (but not published until 1950), I discussed incidentally the types and frequency of marriages with kin among the Tswana tribes of the Bechuanaland Protectorate. I showed there that such marriages are more usual among nobles (descendants of chiefs) than commoners, and also that the two classes differ in the kinds of relative they mostly marry. Since then I have recorded several other genealogies of both nobles and commoners. This new material provides the opportunity for a more detailed analysis than was previously given of rates and types of kin marriage among the Tswana, and in particular for a discussion of the changes that have taken place during the past few generations.

Factors that Impede or Facilitate Post-Conflict Justice Mechanisms?

2012 ◽  
Vol 12 (2) ◽  
pp. 193-217 ◽  
Author(s):  
Dawn L. Rothe ◽  
Scott Maggard
Keyword(s):  
Detailed Analysis ◽  
The State ◽  
Policy Implications ◽  
Empirical Testing ◽  
Power Politics ◽  
The Past ◽  
Post Conflict

This article provides an overview of post-conflict justice (PCJ) as well as a detailed analysis of factors that impede or facilitate the implementation of mechanisms to address the atrocities of a conflict. Grounded in an extensive new dataset, developed over the past three years, covering all conflicts in Africa between 1946 and 2009, we extend previous research by including empirical testing of previously untested assumptions and variables impacting PCJ, most notably, the role of power, politics, economics, and geo-strategic interests at the state and international political levels as well as combining previously tested variables amongst and between each other. Further, the aspects of PCJ, including conflicts where mechanisms were not deployed are included in the analysis along with those coded as symbolic in nature. We conclude by discussing the pragmatic issues associated with testing the concept of realpolitik and policy implications based on our analysis.

50th anniversary of the Department of Traumatology, Orthopedics and Disaster Medicine of A.I. Yevdokimov Moscow State University of Medicine and Dentistry

2021 ◽  
Vol 19 (3) ◽  
pp. 8-15
Author(s):  
N. V. YARYGIN ◽  
◽  
M. V. PARSHIKOV ◽  
I. G. CHEMYANOV ◽  
◽  
...  
Keyword(s):  
Detailed Analysis ◽  
50Th Anniversary ◽  
Disaster Medicine ◽  
Previous Experience ◽  
State University ◽  
Highly Qualified ◽  
Medical Work ◽  
The Past ◽  
Moscow State University

The purpose — to sum up the results of the work of the Department of Traumatology, Orthopedics and Disaster Medicine for 50 years. Material and methods. A detailed analysis was carried out of the stages of the Department development since its creation in 1971. The contribution of Professors Yu.V. Golyakhovskiy, A.S. Imamaliev, V.I. Zorya, N.V. Yarygin is highlighted. The achievements of the staff in scientific, educational, pedagogical and medical work over the past years are discussed.  Results. Today, the overall bed fund of the Traumatology and Orthopedics bases of the Department is 300 beds. Only in 2019-2020, according to the results of studies conducted in clinics, 155 scientific articles and theses were published, 92 reports were made, two patents for inventions were obtained. Two textbooks, two training manuals on traumatology and orthopedics, and two monographs were published. The 4th and the 5th International Pirogov Forums were organized, with the leading Russian and foreign specialists as speakers. Conclusion. The Professors of the Department of Traumatology, Orthopedics and Disaster Medicine are highly qualified specialists, renowned in the sphere of Traumatology, Orthopedics and Disaster Medicine. The collective of the Department of Traumatology, Orthopedics and Disaster Medicine, relying on the previous experience and traditions, is energetic and confident on its anniversary.

A detailed analysis of the hybrid lattice-reduction and meet-in-the-middle attack

2019 ◽  
Vol 13 (1) ◽  
pp. 1-26 ◽  
Author(s):  
Thomas Wunderer
Keyword(s):  
Detailed Analysis ◽  
Runtime Analysis ◽  
Lattice Reduction ◽  
Signature Schemes ◽  
The Past ◽  
Encryption Schemes ◽  
Simplifying Assumptions ◽  
Security Levels

Abstract Over the past decade, the hybrid lattice-reduction and meet-in-the middle attack (called hybrid attack) has been used to evaluate the security of many lattice-based cryptographic schemes such as NTRU, NTRU Prime, BLISS and more. However, unfortunately, none of the previous analyses of the hybrid attack is entirely satisfactory: They are based on simplifying assumptions that may distort the security estimates. Such simplifying assumptions include setting probabilities equal to 1, which, for the parameter sets we analyze in this work, are in fact as small as 2^{-80} . Many of these assumptions lead to underestimating the scheme’s security. However, some lead to security overestimates, and without further analysis, it is not clear which is the case. Therefore, the current security estimates against the hybrid attack are not reliable, and the actual security levels of many lattice-based schemes are unclear. In this work, we present an improved runtime analysis of the hybrid attack that is based on more reasonable assumptions. In addition, we reevaluate the security against the hybrid attack for the NTRU, NTRU Prime and R-BinLWEEnc encryption schemes as well as for the BLISS and GLP signature schemes. Our results show that there exist both security over- and underestimates in the literature.

The Establishment, Transfer, and Maintenance of Fluent Speech in 50 Stutterers Using Delayed Auditory Feedback and Operant Procedures

1974 ◽  
Vol 39 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Bruce P. Ryan ◽  
Barbara Van Kirk
Keyword(s):  
Detailed Analysis ◽  
Auditory Feedback ◽  
Rehabilitation Center ◽  
Delayed Auditory Feedback ◽  
Fluent Speech ◽  
Speech Fluency ◽  
The Past ◽  
Clinical Program

Operant speech fluency techniques are being used in a clinical program in a rehabilitation center to treat people who stutter. Establishment, transfer, and maintenance programs are used. Delayed auditory feedback is commonly employed to produce the initial fluent speech. From more than 200 clients seen over the past four years, 50 recent clients were selected for a detailed analysis. The results indicate that the programs are effective in helping people of varying ages and stuttering severity to speak fluently. This was accomplished in relatively short periods (approximately 20 hours of therapy). The fluent speech of the clients has transferred to their environment and checks indicate that it has been maintained.

scholarly journals Caenagnathids of the Dinosaur Park Formation (Campanian) of Alberta, Canada: anatomy, osteohistology, taxonomy, and evolution

2020 ◽  
Vol 8 ◽  
pp. 105-153 ◽  
Author(s):  
Gregory Funston
Keyword(s):  
Body Size ◽  
Skeletal Maturity ◽  
Niche Overlap ◽  
Niche Space ◽  
The Past ◽  
Adult Body ◽  
New Material ◽  
Taxonomic Framework ◽  
Dinosaur Park Formation ◽  
Insight Into

Our understanding of caenagnathid anatomy, diversity, and ecology has improved considerably in the past twenty years, but numerous issues still remain. Among these, the diversity and taxonomy of caenagnathids from the Dinosaur Park Formation of Alberta, Canada, have remained problematic. Whereas some authors recognize three genera, others suggest only two were present, and there is considerable disagreement about which specimens are referable to which genus. This study aims to resolve this issue by reviewing the known specimens and using osteohistology, to establish a testable taxonomic framework of Dinosaur Park Formation caenagnathids. Numerous new specimens from all regions of the skeleton provide insight into morphological variation in caenagnathids, and three morphotypes are recognized based on a combination of morphological features and body size. Osteohistology shows that representatives in each body size class are at skeletal maturity, and therefore supports the delineation of three taxa: the smaller Citipes elegans gen. nov., the intermediate Chirostenotes pergracilis, and the larger Caenagnathus collinsi, new material of which shows it rivalled Anzu wyliei in size. However, these analyses also raise concerns about the referral of isolated material to each taxon in the absence of skeletal overlap between specimens or osteohistological analysis. Caenagnathids are consistently recovered throughout the Dinosaur Park Formation interval, and two geographic clusters of increased abundance probably reflect collection and taphonomic biases. The coexistence of three taxa was apparently facilitated by differences in both adult body size and functional morphology of the dentary and pes, which suggests that caenagnathids minimized niche overlap rather than subdividing niche space. Regardless, little is known of the exact roles caenagnathids played in Late Cretaceous ecosystems. Incorporation of the new material and taxonomic framework into a phylogenetic analysis drastically improves our understanding of the relationships between caenagnathines, and sheds light on the evolution of body size in caenagnathids and its role in their diversification.

Crete (Prehistoric)

2013 ◽  
Vol 59 ◽  
pp. 56-67
Author(s):  
John Bennet
Keyword(s):  
The Past ◽  
New Information ◽  
Archaeological Work ◽  
New Material ◽  
Individual Contributions ◽  
The University

Publications of fieldwork continue to appear slowly, but the latest volume of ADelt for Crete, covering the years 2001–2004, appeared in print in summer 2012 (ADelt 56–59 [2001–2004] B5). Inevitably, given the years covered, some of the activity summarized in this volume has already been noted in AG and brief notices of some appears in the decadal summary of the activities of all the prehistoric and Classical ephorias (www.yppo.gr/0/anaskafes; AR 58 [2011–2012] 58). Emphasis here is on those activities not already noted in AG or those where significant new information appears in the new volume of ADelt. The second meeting on Archaeological Work on Crete (AWiC2), alluded to last year (AR 58 [2011–2012] 58), has been published and can be read online through the University of Crete's Library (http://elocus.lib.uoc.gr/dlib/d/0/5/metadata-dlib-1368695830-557833-31681.tkl#). A third meeting is scheduled for December 2013 and will hopefully be made accessible with equally commendable promptness. The proceedings of the Tenth International Cretological Congress held in Chania in 2006 (see AR 53 [2006–2007] 96) are still to appear in print, although e-offprints of individual contributions continue to circulate. New material in this year's entry is therefore drawn primarily from ADelt 56–59 (2001–2004) B5 and AWiC2.The past year has seen a number of significant publications on prehistoric Crete, including the proceedings of several conferences. The publication by the BSA of Intermezzo: Intermediacy and Regeneration in Middle Minoan III Palatial Crete (Macdonald and Knappett [2013]), containing papers presented at a workshop held in 2008, complements volumes noted last year (AR 58 [2011–2012] 58) on Late Minoan IB ceramics (Brogan and Hallager [2011]) and on the Prepalatial and Protopalatial periods (Early Minoan to Middle Minoan II) (Schoep et al. [2011]).

The persistent presence of the dead: recent excavations at the hunter-gatherer cemetery at Zvejnieki (Latvia)

Antiquity ◽  
2013 ◽  
Vol 87 (338) ◽  
pp. 1016-1029 ◽  
Author(s):  
Liv Nilsson Stutz ◽  
Lars Larsson ◽  
Ilga Zagorska
Keyword(s):  
Detailed Analysis ◽  
Large Scale ◽  
Northern Europe ◽  
Social Differentiation ◽  
Burial Practices ◽  
Neolithic Transition ◽  
The Past ◽  
Large Scale Disturbance ◽  
The Dead ◽  
Specific Identity

The well-known Mesolithic cemeteries of Northern Europe have long been viewed as evidence of developing social complexity in those regions in the centuries immediately before the Neolithic transition. These sites also had important symbolic connotations. This study uses new and more detailed analysis of the burial practices in one of these cemeteries to argue that much more is involved than social differentiation. Repeated burial in the densely packed site of Zvejnieki entailed large-scale disturbance of earlier graves, and would have involved recurrent encounters with the remains of the ancestral dead. The intentional use of older settlement material in the grave fills may also have signified a symbolic link with the past. The specific identity of the dead is highlighted by the evidence for clay face masks and tight body wrappings in some cases.

scholarly journals Revision of the genus Exsuperantia Özdikmen, 2009 (Tetractinellida: Phymaraphiniidae) with description of a new species from the Atlantic Ocean

Zootaxa ◽  
2019 ◽  
Vol 4613 (1) ◽  
pp. 135-151 ◽  
Author(s):  
FRANCISCA C. CARVALHO ◽  
ANDRZEJ PISERA
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
The Past ◽  
Phylogenetic Reconstructions ◽  
The Family ◽  
Long Time ◽  
New Material ◽  
Northeast Atlantic Ocean ◽  
The Caribbean ◽  
A New Species

Phymaraphiniidae Schrammen 1924 (Porifera: Astrophorina) is a family of lithistid demosponges that has received little attention in the past decades. The systematic problems within this family have not been addressed for a long time due to the absence of new records and material. The genus Exsuperantia Özdikmen 2009 was first described by Schmidt (1879) as Rimella to allocate the species Rimella clava, found in the Caribbean. In 1892, Topsent found what he thought to be the same species described by Schmidt in the Azores, and synonymized it with Racodiscula clava, as he thought this species belonged to the family Theonellidae Lendenfeld 1903. However, Rimella and Racodiscula belong to distinct families: Rimella to Phymaraphiniidae, and Racodiscula to Theonellidae. Due to the fact that the genus Rimella was already preoccupied by a gastropod, it was renamed as Exsuperantia. In result of the poor preservation of Schmidt’s material and the absence of new specimens, the attribution of Topsent’s specimens to the family level remained obscure. Here, we review the genus Exsuperantia based on the analysis of new material recently collected during various research expeditions in the northeast Atlantic Ocean. The comparison of these new specimens with Schmidt’s and Topsent’s type material, allowed us to assign Topsent’s specimens to a new species, Exsuperantia archipelagus sp. nov., and confirm its attribution to the family Phymaraphiniidae (not Theonellidae). Phylogenetic reconstructions using newly generated sequences of the cytochrome subunit (COI) marker also support the assignment of the new species to the family Phymaraphiniidae (not Theonellidae). 

V.—Morphological Studies on the Echinoidea Holectypoida and their Allies

1917 ◽  
Vol 4 (4) ◽  
pp. 160-168
Author(s):  
Herbert L. Hawkins
Keyword(s):  
The Past ◽  
Morphological Studies ◽  
Complete Knowledge ◽  
Natural Objects ◽  
New Material ◽  
Made In

During the past seven years I have published several papers based upon preliminary investigations on the anatomy of the Holectypoida, an order of the Euechinoidea which, by general consent, is regarded as transitional between the Regular and Irregular sections of the class. Continued study, aided by increased mental and technical experience, has revealed an ever-increasing number of interesting features in the order, and has made possible more definite and confident surmises as to its affinities with other groups. The series of contributions here commenced is intended to amplify, and in some cases to correct, the statements made in my earlier papers. With very few exceptions the actual descriptions that are given in the former work still seem to be essentially correct, but every fresh examination, even of the same specimens, testifies to the incompleteness of most of the observations hitherto published. New material, better or differently preserved, often draws attention to features overlooked or discarded as unimportant in the examples already studied. No apology is needed for the publication of incomplete descriptions of natural objects, since complete knowledge is as yet nowhere attained. When inaccuracies of observation have been detected, their nature and cause will be stated frankly, accompanied, verbally or not, by suitable contrition.

Pursuing ‘the Pressure of the Past’: British Prehistoric Research, 1980–2010

2012 ◽  
Vol 78 ◽  
pp. 315-339 ◽  
Author(s):  
Anwen Cooper
Keyword(s):  
Detailed Analysis ◽  
Evidence Base ◽  
Research Practices ◽  
The Past ◽  
Planning Policy ◽  
Guidance Note ◽  
Policy Guidance ◽  
Investigative Process ◽  
The Way

This article presents a detailed analysis of developments in British prehistoric research practices from 1980–2010, traversing the period during which Planning Policy Guidance Note 16 (PPG16) was introduced and changed substantially the way that archaeology was carried out. Using evidence from Proceedings of the Prehistoric Society (PPS) itself together with key fieldwork records collated over the duration of this period, a consideration is made of changes in the character of prehistoric investigations, in the evidence base available to researchers, and in the methodologies drawn upon and interpretations put forward in significant outputs of British prehistoric research. Several major shifts in research practices are highlighted. The findings augment considerably broad claims which have been made about the changing character of British prehistoric research practices and reveal some perhaps surprising traits of the investigative process. PPS's own role within this broader research milieu is also assessed.

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