Abstract：
:The problem of missing data is common in all fields of science. Various methods of estimating missing values in a dataset exist, such as deletion of cases, insertion of sample mean, and linear regression. Each approach presents problems inherent in the method itself or in the nature of the pattern of missing data. We report a method that (1) is more general in application and (2) provides better estimates than traditional approaches, such as one-step regression. The model is general in that it may be applied to singular matrices, such as small datasets or those that contain dummy or index variables. The strength of the model is that it builds a regression equation iteratively, using a bootstrap method. The precision of the regressed estimates of a variable increases as regressed estimates of the predictor variables improve. We illustrate this method with a set of measurements of European Upper Paleolithic and Mesolithic human postcranial remains, as well as a set of primate anthropometric data. First, simulation tests using the primate data set involved randomly turning 20% of the values to "missing". In each case, the first iteration produced significantly better estimates than other estimating techniques. Second, we applied our method to the incomplete set of human postcranial measurements. MISDAT estimates always perform better than replacement of missing data by means and better than classical multiple regression. As with classical multiple regression, MISDAT performs when squared multiple correlation values approach the reliability of the measurement to be estimated, e.g., above about 0. 8.
journal_name
J Hum Evoljournal_title
Journal of human evolutionauthors
Holt B,Benfer RA Jrdoi
10.1006/jhev.2000.0418subject
Has Abstractpub_date
2000-09-01 00:00:00pages
289-96issue
3eissn
0047-2484issn
1095-8606pii
S0047-2484(00)90418-4journal_volume
39pub_type
杂志文章abstract：:Relative abundances of skeletal elements at Plio-Pleistocene archaeological sites have long been interpreted to represent selective transport of portions of large prey. Models from optimal foraging theory suggest that the degree of carcass transport selectivity reflects transport constraints, particularly transport di...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2008.12.008
更新日期：2009-03-01 00:00:00
abstract：:The Regourdou 1 partial skeleton was found in 1957 in level IV of the eponymous site located in Montignac-sur-Vézère (Dordogne, France) and until now it has been only partially published. The ongoing revision of the faunal remains from the site has yielded additional fossils that pertain to this skeleton. Here we stud...
journal_title：Journal of human evolution
pub_type： 杂志文章
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更新日期：2013-06-01 00:00:00
abstract：:Though late Middle Pleistocene in age, Homo naledi is characterized by a mosaic of Australopithecus-like (e.g., curved fingers, small brains) and Homo-like (e.g., elongated lower limbs) traits, which may suggest it occupied a unique ecological niche. Ecological reconstructions inform on niche occupation, and are parti...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2018.02.006
更新日期：2018-05-01 00:00:00
abstract：:Investigations into the evolution of the primate brain have tended to neglect the role of connectivity in determining which brain structures have changed in size, focusing instead on changes in the size of the whole brain or of individual brain structures, such as the neocortex, in isolation. We show that the primate ...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/s0047-2484(02)00162-8
更新日期：2003-01-01 00:00:00
abstract：:The Xujiayao site in the Nihewan Basin (North China) is one of the most important Paleolithic sites in East Asia. Twenty Homo fossils, which were previously assigned to an archaic Homo sapiens group, have been excavated along with more than 30,000 lithic artifacts and ∼5000 mammalian fossil specimens. Dating of the Xu...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.01.014
更新日期：2017-05-01 00:00:00
abstract：:One of the most crucial debates in human paleoneurology concerns the timing and mode of the emergence of the derived cerebral features in the hominin fossil record. Given its exceptional degree of preservation and geological age (i.e., 3.67 Ma), StW 573 ('Little Foot') has the potential to shed new light on hominin br...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2018.11.009
更新日期：2019-01-01 00:00:00
abstract：:The whole collection of Suidae from Kanapoi is revised in the context of the systematics and evolution of Nyanzachoerus in the Pliocene of Eastern Africa. It contains only two species, Nyanzachoerus kanamensis and Notochoerus jaegeri. The size and morphology of their premolars overlap, but not those of their m3s. No t...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.05.004
更新日期：2020-03-01 00:00:00
abstract：:This study presents the discovery of a right cercopithecine calcaneus from the site of 'Ubeidiya, Israel, dated to ca. 1.6 Ma. The fossil is described and statistically compared to bones of modern and fossil cercopithecids. The specimen can be attributed to a large-bodied cercopithecine and represents a new primate ta...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2009.08.004
更新日期：2010-01-01 00:00:00
abstract：:An aeolian sand unit overlies the Middle Stone Age deposits at Blombos Cave on the southern Cape coast. These deposits contained culturally-important artefacts, including bone tools and pieces of engraved ochre, as well as a large number of worked lithics. The aeolian sand and two other remnants of the sand dune forme...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/s0047-2484(03)00048-4
更新日期：2003-05-01 00:00:00
abstract：:The assessment of the degree of similarity or difference between Neanderthals and modern humans in their patterns of dental development remains a controversial matter. Here we report results from the microtomographic-based (SR-microCT) high-resolution structural investigation of the maxilla and mandible of the Neander...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2008.09.002
更新日期：2009-01-01 00:00:00
abstract：:The Papionina is a geographically widespread subtribe of African cercopithecid monkeys whose evolutionary history is of particular interest to anthropologists. The phylogenetic relationships among arboreal mangabeys (Lophocebus), baboons (Papio), and geladas (Theropithecus) remain unresolved. Molecular phylogenetic an...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2013.09.003
更新日期：2014-01-01 00:00:00
abstract：:Concentrations of cosmogenic (10)Be, measured in quartz from chert and river sediment around the Cradle of Humankind (CoH), are used to determine basin-averaged erosion rates and estimate incision rates for local river valleys. This study focusses on the catchment area that hosts Malapa cave with Australopithecus sedi...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2016.03.002
更新日期：2016-07-01 00:00:00
abstract：:Two fragments of a hominin tooth (Australopithecus robustus) and two bovid teeth from the Hanging Remnant of the Swartkrans Formation were analysed with ESR. Research was complicated by the fact that the samples came from a curated collection and their precise provenance is unknown. The environmental dose rate was rec...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.2000.0459
更新日期：2001-05-01 00:00:00
abstract：:This paper examines orangutan population history and evolution through a meta-analysis of seven loci collected from both Sumatran and Bornean orangutans. Within orangutans, most loci show that the Sumatran population is about twice as diverse as the Bornean population. Orangutans are more diverse than African apes and...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2005.12.005
更新日期：2006-05-01 00:00:00
abstract：:The first omomyine petrosals, those of Omomys carteri, are described. Omomys probably had a tympanic bulla and canals for the intratympanic carotid circulation derived from the petrosal bone. The stapedial and promontory canals were complete, large and subequal. The posterior carotid foramen entered the bulla posterom...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.2000.0417
更新日期：2000-08-01 00:00:00
abstract：:The evolution of heat treatment for stone artefact production is a subject of major interest for our understanding of early modern humans. In this study, we examine the evidence from one region in Australia to provide a new record of the antiquity of heat treatment, explore chronological shifts in the frequency of hea...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2020.102744
更新日期：2020-05-01 00:00:00
abstract：:This study examines the extent to which the major dimensions of the cranial base (maximum length, maximum breadth, and flexion) interact with brain volume to influence major proportions of the neurocranium and face. A model is presented for developmental interactions that occur during ontogeny between the brain and th...
journal_title：Journal of human evolution
pub_type： 杂志文章,评审
doi：10.1006/jhev.1999.0335
更新日期：2000-02-01 00:00:00
abstract：:Paleolandscape research tests for variation in the spatial distribution of hominid artefacts and establishes the association of hominid activities with paleoenvironmental features over distances of 100s to 1000s of meters. This approach requires (1) precise definition of narrow stratigraphic intervals based on sedimen...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1999.0344
更新日期：1999-11-01 00:00:00
abstract：:Excavations at Duinefontein (DFT) 2 near Cape Town, South Africa have recovered numerous stone artefacts and animal bones on an ancient surface sealed within iron-stained eolian sands. U-series analysis of an overlying calcrete places the sands before 150 ka ago, while the large mammal taxa imply an age between 400 an...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1999.0307
更新日期：1999-08-01 00:00:00
abstract：:The phylogenetic relationships of early Pleistocene Homo crania from the South African sites of Swartkrans and Sterkfontein were investigated through cladistic analyses of 99 morphological characters. The Swartkrans Member 1 specimen SK 847 and the Stw 53 cranium from Sterkfontein Member 5A were treated as separate op...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2007.10.012
更新日期：2008-05-01 00:00:00
abstract：:Ever since the seminal papers of Keith and Schultz, hominoid primate ribcages have been described as either "funnel-" or "barrel-shaped." Following this dichotomic typology, it is currently held that Homo sapiens and hylobatids (gibbons and siamangs) share a barrel-shaped ribcage and that they are more similar to each...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.08.002
更新日期：2017-12-01 00:00:00
abstract：:ESR and U-series analyses of teeth from the palaeoanthropological site of Hexian which contained Homo erectus remains, illustrate the limited effectiveness of stand-alone ESR and U-series age estimates on faunal materials. The problem lies in the unknown U-uptake history causing very large uncertainties in the age res...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1997.0211
更新日期：1998-06-01 00:00:00
abstract：:Bivariate femoral length allometry in recent humans, Pan, and Gorilla is investigated with special reference to the diminutive Liang Bua (LB) 1 specimen (the holotype of Homo floresiensis) and six early Pleistocene femora referred to the genus Homo. Relative to predicted body mass, Pan and Gorilla femora show strong n...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2009.04.007
更新日期：2009-09-01 00:00:00
abstract：:Conventional wisdom concerning the extinction of Paranthropus suggests that these species developed highly derived morphologies as a consequence of specializing on a diet consisting of hard and/or low-quality food items. It goes on to suggest that these species were so specialized or stenotopic that they were unable t...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2003.11.004
更新日期：2004-02-01 00:00:00
abstract：:Numerous studies on Pleistocene samples have shown that within-group cranial variation was greater than that seen today. The three anatomically modern Upper Cave crania (UC 101, UC 102, and UC 103) from Zhoukoudian, China provide one of the best samples available for addressing the issue of the antiquity of the modern...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.2001.0547
更新日期：2002-05-01 00:00:00
abstract：:The shape of the dental arcade and canine size distinguish extant humans from all apes. Humans are characterized by a parabolic arcade with short postcanine tooth rows and small canines, whereas apes have long, U-shaped arcades with large canines. The evolutionary and biomechanical mechanisms underlying arcade shape d...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.02.010
更新日期：2017-06-01 00:00:00
abstract：:Assessment of clavicular curvatures projected onto two perpendicular planes to decompose the three dimensional shape into cranial and dorsal primary curvatures has shown that two morphological groups of clavicle exist within the genus Homo. The first one includes all species from Homo habilis to Neandertals, while the...
journal_title：Journal of human evolution
pub_type： 历史文章,杂志文章
doi：10.1016/j.jhevol.2008.06.001
更新日期：2008-09-01 00:00:00
abstract：:Ten years ago, evidence from genetics gave strong support to the "recent African origin" view of the evolution of modern humans, which posits that Homo sapiens arose as a new species in Africa and subsequently spread, leading to the extinction of other archaic human species. Subsequent data from the nuclear genome not...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2005.02.006
更新日期：2005-07-01 00:00:00
abstract：:Increasingly sophisticated hominin cognition is assumed to play an important role in major dispersal events but it is unclear what that role is. We present an agent-based model showing that there is a close relationship between level of foresight, environmental heterogeneity, and population dispersibility. We explore ...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2014.02.004
更新日期：2014-04-01 00:00:00
abstract：:Sterkfontein Caves is the single richest early hominin site in the world with deposits yielding one or more species of Australopithecus and possible early Homo, as well as an extensive faunal collection. The inability to date the southern African cave sites accurately or precisely has hindered attempts to integrate th...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2010.03.014
更新日期：2010-07-01 00:00:00
