Journal articles on the topic 'Hominin representations'
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1
Hashimoto, Teruo, Kenichi Ueno, Akitoshi Ogawa, Takeshi Asamizuya, Chisato Suzuki, Kang Cheng, Michio Tanaka, et al. "Hand before foot? Cortical somatotopy suggests manual dexterity is primitive and evolved independently of bipedalism." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1630 (November 19, 2013): 20120417. http://dx.doi.org/10.1098/rstb.2012.0417.
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People have long speculated whether the evolution of bipedalism in early hominins triggered tool use (by freeing their hands) or whether the necessity of making and using tools encouraged the shift to upright gait. Either way, it is commonly thought that one led to the other. In this study, we sought to shed new light on the origins of manual dexterity and bipedalism by mapping the neural representations in the brain of the fingers and toes of living people and monkeys. Contrary to the ‘hand-in-glove’ notion outlined above, our results suggest that adaptations underlying tool use evolved independently of those required for human bipedality. In both humans and monkeys, we found that each finger was represented separately in the primary sensorimotor cortex just as they are physically separated in the hand. This reflects the ability to use each digit independently, as required for the complex manipulation involved in tool use. The neural mapping of the subjects’ toes differed, however. In the monkeys, the somatotopic representation of the toes was fused, showing that the digits function predominantly as a unit in general grasping. Humans, by contrast, had an independent neurological representation of the big toe (hallux), suggesting association with bipedal locomotion. These observations suggest that the brain circuits for the hand had advanced beyond simple grasping, whereas our primate ancestors were still general arboreal quadrupeds. This early adaptation laid the foundation for the evolution of manual dexterity, which was preserved and enhanced in hominins. In hominins, a separate adaptation, involving the neural separation of the big toe, apparently occurred with bipedality. This accords with the known fossil evidence, including the recently reported hominin fossils which have been dated to 4.4 million years ago.
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Gärdenfors, Peter. "Causal Reasoning and Event Cognition as Evolutionary Determinants of Language Structure." Entropy 23, no. 7 (June 30, 2021): 843. http://dx.doi.org/10.3390/e23070843.
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The aim of this article is to provide an evolutionarily grounded explanation of central aspects of the structure of language. It begins with an account of the evolution of human causal reasoning. A comparison between humans and non-human primates suggests that human causal cognition is based on reasoning about the underlying forces that are involved in events, while other primates hardly understand external forces. This is illustrated by an analysis of the causal cognition required for early hominin tool use. Second, the thinking concerning forces in causation is used to motivate a model of human event cognition. A mental representation of an event contains two vectors representing a cause as well as a result but also entities such as agents, patients, instruments and locations. The fundamental connection between event representations and language is that declarative sentences express events (or states). The event structure also explains why sentences are constituted of noun phrases and verb phrases. Finally, the components of the event representation show up in language, where causes and effects are expressed by verbs, agents and patients by nouns (modified by adjectives), locations by prepositions, etc. Thus, the evolution of the complexity of mental event representations also provides insight into the evolution of the structure of language.
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Hendershott, Rebecca. "Didactic and artistic representations of prehistoric hominins: Who were we? Who are we now?" Journal of Science & Popular Culture 3, no. 2 (October 1, 2020): 153–71. http://dx.doi.org/10.1386/jspc_00018_1.
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The image of the prehistoric hominin is well known: brutish and hairy, the men hunt with impressive weapons, while women tend to children or kneel over a hide. In this article I consider didactic illustrations and re-creations of human relatives in the context of science and art. I argue that these images are laden with symbolic sociopolitical meanings and are heavily biased by not only the newest scientific findings but also ideas about gender roles and civilization/civility in popular culture. Artistic representation in educational materials tends to reflect popular conceptions of ancestral life, more than data-dependent interpretations. For example, there is a bias against artistic depictions of women, children or the elderly and activities typically associated with them. Men and male activities – particularly hunting – are overrepresented. Hairy bodies, stooped posture, acute facial angles, savagery and a lack of material culture function as a symbol of incivility or animality. They are used to code an individual as being sufficiently inhuman to create a comfortable separation between viewer and ‘caveman’, which ultimately reflects our ambiguous relationship to human evolution.
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Adams, Justin W. "Fossil mammals from the Gondolin Dump A ex situ hominin deposits, South Africa." PeerJ 6 (August 6, 2018): e5393. http://dx.doi.org/10.7717/peerj.5393.
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The Gondolin palaeokarstic system, located in the UNESCO Fossil Hominids of South Africa World Heritage Site, has been sporadically excavated since the 1970s. Sampling of ex situ dumpsites in 1997 recovered the only two fossil hominin specimens recovered thus far from Gondolin. While one partial mandibular molar (GA 1) remains unattributed, the complete mandibular second molar (GA 2) represents the largest Paranthropus robustus Broom, 1938 tooth identified to date. While subsequent excavations and research at Gondolin has clarified the geological, temporal, taphonomic, and palaeoecologic context for the in situ deposits, this paper presents the first comprehensive description of the fossil assemblage ‘associated’ with the two ex situ hominins. Analysis of 42 calcified sediment blocks and naturally decalcified sediments excavated from three cubic metres of the Dump A deposits reinforce that the dump contains a heterogeneous aggregation of materials from across the Gondolin sedimentary deposits. A total of 15,250 individual fossil specimens were processed (via sifting or acetic-acid mediated processing of calcified sediment blocks), yielding a faunal record that largely mirrors that described from either (or both) the GD 1 and GD 2 in situ assemblages but includes representatives of four novel mammal groups (Families Cercopithecidae, Felidae, Herpestidae, Giraffidae) not recorded in either in situ sample. While basic assemblage characteristics including primary taphonomic data is presented, analysis and interpretation is limited by the ex situ origin of the sample. Ultimately, these results reinforce that the substantial mining-mediated obliteration of palaeokarstic deposits at Gondolin continue to obscure a clear association between the Gondolin Dump A hominins and any of the sampled and dated in situ deposits.
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Pruetz, J. D., P. Bertolani, K. Boyer Ontl, S. Lindshield, M. Shelley, and E. G. Wessling. "New evidence on the tool-assisted hunting exhibited by chimpanzees ( Pan troglodytes verus ) in a savannah habitat at Fongoli, Sénégal." Royal Society Open Science 2, no. 4 (April 2015): 140507. http://dx.doi.org/10.1098/rsos.140507.
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For anthropologists, meat eating by primates like chimpanzees ( Pan troglodytes ) warrants examination given the emphasis on hunting in human evolutionary history. As referential models, apes provide insight into the evolution of hominin hunting, given their phylogenetic relatedness and challenges reconstructing extinct hominin behaviour from palaeoanthropological evidence. Among chimpanzees, adult males are usually the main hunters, capturing vertebrate prey by hand. Savannah chimpanzees ( P. t. verus ) at Fongoli, Sénégal are the only known non-human population that systematically hunts vertebrate prey with tools, making them an important source for hypotheses of early hominin behaviour based on analogy. Here, we test the hypothesis that sex and age patterns in tool-assisted hunting ( n =308 cases) at Fongoli occur and differ from chimpanzees elsewhere, and we compare tool-assisted hunting to the overall hunting pattern. Males accounted for 70% of all captures but hunted with tools less than expected based on their representation on hunting days. Females accounted for most tool-assisted hunting. We propose that social tolerance at Fongoli, along with the tool-assisted hunting method, permits individuals other than adult males to capture and retain control of prey, which is uncommon for chimpanzees. We assert that tool-assisted hunting could have similarly been important for early hominins.
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Leece, AB, Anthony D. T. Kegley, Rodrigo S. Lacruz, Andy I. R. Herries, Jason Hemingway, Lazarus Kgasi, Stephany Potze, and Justin W. Adams. "The first hominin from the early Pleistocene paleocave of Haasgat, South Africa." PeerJ 4 (May 11, 2016): e2024. http://dx.doi.org/10.7717/peerj.2024.
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Haasgat is a primate-rich fossil locality in the northeastern part of the Fossil Hominid Sites of South Africa UNESCO World Heritage Site. Here we report the first hominin identified from Haasgat, a partial maxillary molar (HGT 500), that was recovered from anex situcalcified sediment block sampled from the locality. Thein situfossil bearing deposits of the Haasgat paleokarstic deposits are estimated to date to slightly older than 1.95 Ma based on magnetobiostratigraphy. This places the hominin specimen at a critical time period in South Africa that marks the last occurrence ofAustralopithecusaround 1.98 Ma and the first evidence ofParanthropusandHomoin the region between ∼2.0 and 1.8 Ma. A comprehensive morphological evaluation of the Haasgat hominin molar was conducted against the current South African catalogue of hominin dental remains and imaging analyses using micro-CT, electron and confocal microscopy. The preserved occlusal morphology is most similar toAustralopithecus africanusor earlyHomospecimens but different fromParanthropus. Occlusal linear enamel thickness measured from micro-CT scans provides an average of ∼2.0 mm consistent withAustralopithecusand earlyHomo. Analysis of the enamel microstructure suggests an estimated periodicity of 7–9 days. Hunter–Schreger bands appear long and straight as in someParanthropus, but contrast with this genus in the short shape of the striae of Retzius. Taken together, these data suggests that the maxillary fragment recovered from Haasgat best fits within theAustralopithecus—earlyHomohypodigms to the exclusion of the genusParanthropus. At ∼1.95 Ma this specimen would either represent another example of late occurringAustralopithecusor one of the earliest examples ofHomoin the region. While the identification of this first hominin specimen from Haasgat is not unexpected given the composition of other South African penecontemporaneous site deposits, it represents one of the few hominin localities in the topographically-distinct northern World Heritage Site. When coupled with the substantial differences in the mammalian faunal communities between the northern localities (e.g., Haasgat, Gondolin) and well-sampled Bloubank Valley sites (e.g., Sterkfontein, Swartkrans, Kromdraai), the recovery of the HGT 500 specimen highlights the potential for further research at the Haasgat locality for understanding the distribution and interactions of hominin populations across the landscape, ecosystems and fossil mammalian communities of early Pleistocene South Africa. Such contextual data from sites like Haasgat is critical for understanding the transition in hominin representation at ∼2 Ma sites in the region fromAustralopithecustoParanthropusand earlyHomo.
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Egeland, Charles P., Manuel Domínguez-Rodrigo, Travis Rayne Pickering, Colin G. Menter, and Jason L. Heaton. "Hominin skeletal part abundances and claims of deliberate disposal of corpses in the Middle Pleistocene." Proceedings of the National Academy of Sciences 115, no. 18 (April 2, 2018): 4601–6. http://dx.doi.org/10.1073/pnas.1718678115.
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Humans are set apart from other organisms by the realization of their own mortality. Thus, determining the prehistoric emergence of this capacity is of significant interest to understanding the uniqueness of the human animal. Tracing that capacity chronologically is possible through archaeological investigations that focus on physical markers that reflect “mortality salience.” Among these markers is the deliberate and culturally mediated disposal of corpses. Some Neandertal bone assemblages are among the earliest reasonable claims for the deliberate disposal of hominins, but even these are vigorously debated. More dramatic assertions center on the Middle Pleistocene sites of Sima de los Huesos (SH, Spain) and the Dinaledi Chamber (DC, South Africa), where the remains of multiple hominin individuals were found in deep caves, and under reported taphonomic circumstances that seem to discount the possibility that nonhominin actors and processes contributed to their formation. These claims, with significant implications for charting the evolution of the “human condition,” deserve scrutiny. We test these assertions through machine-learning analyses of hominin skeletal part representation in the SH and DC assemblages. Our results indicate that nonanthropogenic agents and abiotic processes cannot yet be ruled out as significant contributors to the ultimate condition of both collections. This finding does not falsify hypotheses of deliberate disposal for the SH and DC corpses, but does indicate that the data also support partially or completely nonanthropogenic formational histories.
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Wilkins, Wendy K., and Jennie Wakefield. "Brains evolution and neurolinguistic preconditions." Behavioral and Brain Sciences 18, no. 1 (March 1995): 161–82. http://dx.doi.org/10.1017/s0140525x00037924.
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AbstractThis target article presents a plausible evolutionary scenario for the emergence of the neural preconditions for language in the hominid lineage. In pleistocene primate lineages there was a paired evolutionary expansion of frontal and parietal neocortex (through certain well-documented adaptive changes associated with manipulative behaviors) resulting, in ancestral hominids, in an incipient Broca's region and in a configurationally unique junction of the parietal, occipital, and temporal lobes of the brain (the POT). On our view, the development of the POT in our ancestors resulted in the neuroanatomical substrate consistent with the ability for representations in modality-neutral association cortex and, as a result of structure-imposing interaction with Broca's area, the hierarchically structured “conceptual structure.” Evidence from paleoneurology and comparative primate neuroanatomy is used to argue that Homo habilis (2.5–2 million years ago) was the first hominid to have the appropriate gross neuroanatomical configuration to support conceptual structure. We thus suggest that the neural preconditions for language are met in H. habilis. Finally, we advocate a theory of language acquisition that uses conceptual structure as input to the learning procedures, thus bridging the gap between it and language.
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Steele, James, Pier Francesco Ferrari, and Leonardo Fogassi. "From action to language: comparative perspectives on primate tool use, gesture and the evolution of human language." Philosophical Transactions of the Royal Society B: Biological Sciences 367, no. 1585 (January 12, 2012): 4–9. http://dx.doi.org/10.1098/rstb.2011.0295.
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The papers in this Special Issue examine tool use and manual gestures in primates as a window on the evolution of the human capacity for language. Neurophysiological research has supported the hypothesis of a close association between some aspects of human action organization and of language representation, in both phonology and semantics. Tool use provides an excellent experimental context to investigate analogies between action organization and linguistic syntax. Contributors report and contextualize experimental evidence from monkeys, great apes, humans and fossil hominins, and consider the nature and the extent of overlaps between the neural representations of tool use, manual gestures and linguistic processes.
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Falk, Dean. "Brain evolution in Homo: The “radiator” theory." Behavioral and Brain Sciences 13, no. 2 (June 1990): 333–44. http://dx.doi.org/10.1017/s0140525x00078973.
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AbstractThe “radiator” theory of brain evolution is proposed to account for “mosaic evolution” whereby brain size began to increase rapidly in the genus Homo well over a million years after bipedalism had been selected for in early hominids. Because hydrostatic pressures differ across columns of fluid depending on orientation (posture), vascular systems of early bipeds became reoriented so that cranial blood flowed preferentially to the vertebral plexus instead of the internal jugular vein in response to gravity. The Hadar early hominids and robust australopithecines partly achieved this reorientation with a dramatically enlarged occipital/marginal sinus system. On the other hand, hominids in the gracile australopithecine through Homo lineage delivered blood to the vertebral plexus via a widespread network of veins that became more elaborate through time. Mastoid and parietal emissary veins are representatives of this network, and increases in their frequencies during hominid evolution are indicative of its development. Brain size increased with increased frequencies of mastoid and parietal emissary veins in the lineage leading to and including Homo, but remained conservative in the robust australopithecine lineage that lacked the network of veins. The brain is an extremely heatsensitive organ and emissary veins in humans have been shown to cool the brain under conditions of hyperthermia. Thus, the network of veins in the lineage leading to Homo acted as a radiator that released a thermal constraint on brain size. The radiator theory is in keeping with the belief that basal gracile and basal robust australopithecines occupied distinct niches, with the former living in savanna mosaic habitats that were subject to hot temperatures and intense solar radiation during the day.
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Fedorych, Pavlo V., Gennadiy I. Mavrov, Tetiana V. Osinska, and Yuliia V. Shcherbakova. "Protozoan genital invasions caused by the representatives of trichomonas and giardia." Wiadomości Lekarskie 73, no. 2 (January 2020): 380–83. http://dx.doi.org/10.36740/wlek202002133.
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The aim was to perform systematic review of genitourinary protozoan invasion and analyze their pathogenicity and the ability to influence the genitourinary infections. Materials and methods: For systematic review of papers the EMBASE and PubMed databases were searched. We also reviewed our own pilot studies using real-time polymerase chain reaction (PCR) to determine Trichomonas tenax, Pentatrichomonas hominis and Giardia lamblia. Conclusions: Trichomonas tenax, Pentatrichomonas hominis, Giardia lamblia can cause genitourinary invasion in addition to Trichomonas vaginalis. Their eradication is obligatory at least for not keeping intact pathogenic microorganisms phagocyted by Trichomonas spp. Defining the protozoan forms is important in preventing of genital infections recurrences and reinfections.
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Baiz, Marcella D., Priscilla K. Tucker, Jacob L. Mueller, and Liliana Cortés-Ortiz. "X-Linked Signature of Reproductive Isolation in Humans is Mirrored in a Howler Monkey Hybrid Zone." Journal of Heredity 111, no. 5 (July 2020): 419–28. http://dx.doi.org/10.1093/jhered/esaa021.
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Abstract Reproductive isolation is a fundamental step in speciation. While sex chromosomes have been linked to reproductive isolation in many model systems, including hominids, genetic studies of the contribution of sex chromosome loci to speciation for natural populations are relatively sparse. Natural hybrid zones can help identify genomic regions contributing to reproductive isolation, like hybrid incompatibility loci, since these regions exhibit reduced introgression between parental species. Here, we use a primate hybrid zone (Alouatta palliata × Alouatta pigra) to test for reduced introgression of X-linked SNPs compared to autosomal SNPs. To identify X-linked sequence in A. palliata, we used a sex-biased mapping approach with whole-genome re-sequencing data. We then used genomic cline analysis with reduced-representation sequence data for parental A. palliata and A. pigra individuals and hybrids (n = 88) to identify regions with non-neutral introgression. We identified ~26 Mb of non-repetitive, putatively X-linked genomic sequence in A. palliata, most of which mapped collinearly to the marmoset and human X chromosomes. We found that X-linked SNPs had reduced introgression and an excess of ancestry from A. palliata as compared to autosomal SNPs. One outlier region with reduced introgression overlaps a previously described “desert” of archaic hominin ancestry on the human X chromosome. These results are consistent with a large role for the X chromosome in speciation across animal taxa and further, suggest shared features in the genomic basis of the evolution of reproductive isolation in primates.
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Mellet, E., M. Salagnon, A. Majkić, S. Cremona, M. Joliot, G. Jobard, B. Mazoyer, N. Tzourio Mazoyer, and F. d'Errico. "Neuroimaging supports the representational nature of the earliest human engravings." Royal Society Open Science 6, no. 7 (July 2019): 190086. http://dx.doi.org/10.1098/rsos.190086.
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The earliest human graphic productions, consisting of abstract patterns engraved on a variety of media, date to the Lower and Middle Palaeolithic. They are associated with anatomically modern and archaic hominins. The nature and significance of these engravings are still under question. To address this issue, we used functional magnetic resonance imaging to compare brain activations triggered by the perception of engraved patterns dating between 540 000 and 30 000 years before the present with those elicited by the perception of scenes, objects, symbol-like characters and written words. The perception of the engravings bilaterally activated regions along the ventral route in a pattern similar to that activated by the perception of objects, suggesting that these graphic productions are processed as organized visual representations in the brain. Moreover, the perception of the engravings led to a leftward activation of the visual word form area. These results support the hypothesis that these engravings have the visual properties of meaningful representations in present-day humans, and could have served such purpose in early modern humans and archaic hominins.
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Almécija, Sergio, Ashley S. Hammond, Nathan E. Thompson, Kelsey D. Pugh, Salvador Moyà-Solà, and David M. Alba. "Fossil apes and human evolution." Science 372, no. 6542 (May 6, 2021): eabb4363. http://dx.doi.org/10.1126/science.abb4363.
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Humans diverged from apes (chimpanzees, specifically) toward the end of the Miocene ~9.3 million to 6.5 million years ago. Understanding the origins of the human lineage (hominins) requires reconstructing the morphology, behavior, and environment of the chimpanzee-human last common ancestor. Modern hominoids (that is, humans and apes) share multiple features (for example, an orthograde body plan facilitating upright positional behaviors). However, the fossil record indicates that living hominoids constitute narrow representatives of an ancient radiation of more widely distributed, diverse species, none of which exhibit the entire suite of locomotor adaptations present in the extant relatives. Hence, some modern ape similarities might have evolved in parallel in response to similar selection pressures. Current evidence suggests that hominins originated in Africa from Miocene ape ancestors unlike any living species.
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PRITT, BOBBI, THOMAS TRAINER, LINDA SIMMONS-ARNOLD, MARK EVANS, DETIGER DUNAMS, and BENJAMIN M. ROSENTHAL. "Detection of Sarcocystis Parasites in Retail Beef: A Regional Survey Combining Histological and Genetic Detection Methods." Journal of Food Protection 71, no. 10 (October 1, 2008): 2144–47. http://dx.doi.org/10.4315/0362-028x-71.10.2144.
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Sarcocystis spp. are parasitic protists acquired when undercooked, cyst-laden meat is consumed. While both Sarcocystis hominis and S. cruzi encyst in beef, only S. hominis is pathogenic to humans. In this study, we used histological methods and novel molecular techniques to determine the regional prevalence and identity of Sarcocystis spp. in retail beef. Of 110 samples, 60 supported amplification of parasite rRNA by PCR. All 41 sequenced representatives were identified as S. cruzi. To compare detection methods, 48 samples were then examined in parallel by histology and PCR, and 16 and 26 samples, respectively, were positive. Five samples positive by initial histologic sections were not amplified by PCR. Fifteen PCR-positive samples did not contain sarcocysts on initial histologic section, but additional sections from these samples revealed sarcocysts in an additional 12 samples. When combined, histology with additional sections and PCR detected 31 positive specimens of the 48 total specimens. We found no evidence of human pathogen S. hominis and confirm that cattle pathogen S. cruzi is highly prevalent in this regional sample. PCR assays may increase the detection sensitivity of Sarcocystis spp. and contribute diagnostic precision.
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Hanssen, Anne-Merethe, and Johanna U. Ericson Sollid. "Multiple Staphylococcal Cassette Chromosomes and Allelic Variants of Cassette Chromosome Recombinases in Staphylococcus aureus and Coagulase-Negative Staphylococci from Norway." Antimicrobial Agents and Chemotherapy 51, no. 5 (February 16, 2007): 1671–77. http://dx.doi.org/10.1128/aac.00978-06.
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ABSTRACT We investigated the nature of the staphylococcal cassette chromosome mec (SCCmec) elements and cognate insertion sites in a collection of 42 clinical staphylococcal isolates of various species from Norway. The ccr and mec genes and the attachment sites (attL/attR) were identified by PCR, Southern blot hybridization, and DNA sequencing. We found 10 possibly new SCCmec types and one previously unreported variant of SCCmec type III (mec complex A, ccrAB3, and ccrC7) in Staphylococcus epidermidis, Staphylococcus haemolyticus, and Staphylococcus hominis. Eleven of 42 strains contained multiple copies of ccr, suggesting the presence of mosaic structures composed of multiple SCC elements. S. haemolyticus contained ccrAB2 genes identical to those in S. aureus SCCmec type IV but lacked IS1272 and mec regulators. Two new allelic ccr variants, ccrC6 and ccrC7, were identified. Also, the presumed functional version of ccrB1 was found in a mecA-positive S. hominis strain and in mecA-negative S. epidermidis and S. hominis strains. Only minor differences in direct repeats in the left and right boundaries (attR/attL) were observed, while there was more variation in the inverted repeats. Coagulase-negative staphylococci (CoNS) contained several representatives of different ccr complexes and thus seemed to harbor multiple or composite new types of SCCmec. The enormous diversity observed in the SCCmec elements implies a large SCCmec reservoir in CoNS.
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Lynch, Michael P. "And what of human musicality?" Behavioral and Brain Sciences 19, no. 4 (December 1996): 788. http://dx.doi.org/10.1017/s0140525x00044071.
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AbstractThe hypothesized brain evolution and preconditions for language may have allowed for the emergence of musicality either simultaneously with or before the emergence of language. Music and language are parallel in their hierarchical, temporally organized structure, and the evolution of hierarchical representation in hominids may have provided the basis for musical representation. Because music could have been produced manually or vocally before the production of spoken language, it remains possible that language emerged from music and that music thus served as a communicative precursor to language.
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Müller, Ralph-Axel. "Innateness, autonomy, universality? Neurobiological approaches to language." Behavioral and Brain Sciences 19, no. 4 (December 1996): 611–31. http://dx.doi.org/10.1017/s0140525x00043296.
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AbstractThe concepts of the innateness, universality, species-specificity, and autonomy of the human language capacity have had an extreme impact on the psycholinguistic debate for over thirty years. These concepts are evaluated from several neurobiological perspectives, with an emphasis on the emergence of language and its decay due to brain lesion and progressive brain disease.Evidence of perceptuomotor homologies and preadaptations for human language in nonhuman primates suggests a gradual emergence of language during hominid evolution. Regarding ontogeny, the innate component of language capacity is likely to be polygenic and shared with other developmental domains. Dissociations between verbal and nonverbal development are probably rooted in the perceptuomotor specializations of neural substrates rather than the autonomy of a grammar module. Aphasiologicaldata often assumed to suggest modular linguistic subsystems can be accounted for in terms of a neurofunctional model incorporating perceptuomotor-based regional specializationsand distributivity of representations. Thus, dissociations between grammatical functors and content words are due to different conditions of acquisition and resulting differences in neural representation. Human brains are characterized by multifactorial interindividual variability, and strict universality of functional organization is biologically unrealistic.A theoretical alternative is proposed according to which (1) linguistic specialization of brain areas is due to epigenetic and probabilistic maturational events, not to genetic ”hard-wiring,” and (2) linguistic knowledge is neurally represented in distributed cell assemblies whose topography reflects the perceptuomotor modalities involved in the acquisition and use of a given item of knowledge.
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Kimbel, William H., and Brian Villmoare. "From Australopithecus to Homo : the transition that wasn't." Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1698 (July 5, 2016): 20150248. http://dx.doi.org/10.1098/rstb.2015.0248.
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Although the transition from Australopithecus to Homo is usually thought of as a momentous transformation, the fossil record bearing on the origin and earliest evolution of Homo is virtually undocumented. As a result, the poles of the transition are frequently attached to taxa (e.g. A. afarensis, at ca 3.0 Ma versus H. habilis or H. erectus, at ca 2.0–1.7 Ma) in which substantial adaptive differences have accumulated over significant spans of independent evolution. Such comparisons, in which temporally remote and adaptively divergent species are used to identify a ‘transition’, lend credence to the idea that genera should be conceived at once as monophyletic clades and adaptively unified grades. However, when the problem is recast in terms of lineages, rather than taxa per se , the adaptive criterion becomes a problem of subjectively privileging ‘key’ characteristics from what is typically a stepwise pattern of acquisition of novel characters beginning in the basal representatives of a clade. This is the pattern inferred for species usually included in early Homo , including H. erectus , which has often been cast in the role as earliest humanlike hominin. A fresh look at brain size, hand morphology and earliest technology suggests that a number of key Homo attributes may already be present in generalized species of Australopithecus , and that adaptive distinctions in Homo are simply amplifications or extensions of ancient hominin trends. This article is part of the themed issue ‘Major transitions in human evolution’.
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Walker, Stephen F. "Bartering old stone tools: When did communicative ability and conceptual structure begin to interact?" Behavioral and Brain Sciences 18, no. 1 (March 1995): 203–4. http://dx.doi.org/10.1017/s0140525x00038139.
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AbstractWilkins & Wakefield are clearly right to separate linguistic capacity from communicative ability, if only because other animal species have one without the other. But I question the abruptness of the demarcation they make between a period when hominids evolved enriched conceptual representation for other reasons entirely, and a subsequent later stage when language use became an adaptation.
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Clarke, Ronald J., Travis Rayne Pickering, Jason L. Heaton, and Kathleen Kuman. "The Earliest South African Hominids." Annual Review of Anthropology 50, no. 1 (October 21, 2021): 125–43. http://dx.doi.org/10.1146/annurev-anthro-091619-124837.
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The earliest South African hominids (humans and their ancestral kin) belong to the genera Australopithecus, Paranthropus, and Homo, with the oldest being a ca. 3.67 million-year-old nearly complete skeleton of Australopithecus (StW 573) from Sterkfontein Caves. This skeleton has provided, for the first time in almost a century of research, the full anatomy of an Australopithecus individual with indisputably associated skull and postcranial bones that give complete limb lengths. The three genera are also found in East Africa, but scholars have disagreed on the taxonomic assignment for some fossils owing to historical preconceptions. Here we focus on the South African representatives to help clarify these debates. The uncovering of the StW 573 skeleton in situ revealed significant clues concerning events that had affected it over time and demonstrated that the associated stalagmite flowstones cannot provide direct dating of the fossil, as they are infillings of voids caused by postdepositional collapse.
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Bunn, Henry T. "Patterns of skeletal representation and hominid subsistence activities at Olduvai Gorge, Tanzania, and Koobi Fora, Kenya." Journal of Human Evolution 15, no. 8 (December 1986): 673–90. http://dx.doi.org/10.1016/s0047-2484(86)80004-5.
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Hochadel, Oliver. "Facing Our Ancestors." Nuncius 37, no. 3 (December 14, 2022): 643–73. http://dx.doi.org/10.1163/18253911-bja10034.
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Abstract Paleoartists reconstruct hominids for museums, popular science magazines and other media as three-dimensional sculptures or two-dimensional images. This paper describes the practices and the self-understanding of half a dozen paleoartists, in part based on interviews. It will ask the following questions: How does one become a paleoartist, what skills and what knowledge are required? How are reconstructions of Australopithecines and Neanderthals actually manufactured? How do paleoartists deal with the notorious gaps in the fossil record? The claim for scientific rigor, the artist’s quest for creativity and the market forces, demanding visually attractive representations of early humans, are in constant tension. The paper analyses how paleoartists, paleoanthropologists (advisors) and museum curators (sponsors) interact and negotiate contested issues. It will argue that these reconstructions of hominids shape not only the perception of our ancestors of the general public but also influence the knowledge production of the human origin researchers themselves.
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Haile-Selassie, Yohannes. "Phylogeny of early Australopithecus : new fossil evidence from the Woranso-Mille (central Afar, Ethiopia)." Philosophical Transactions of the Royal Society B: Biological Sciences 365, no. 1556 (October 27, 2010): 3323–31. http://dx.doi.org/10.1098/rstb.2010.0064.
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The earliest evidence of Australopithecus goes back to ca 4.2 Ma with the first recorded appearance of Australopithecus ‘anamensis’ at Kanapoi, Kenya. Australopithecus afarensis is well documented between 3.6 and 3.0 Ma mainly from deposits at Laetoli (Tanzania) and Hadar (Ethiopia). The phylogenetic relationship of these two ‘species’ is hypothesized as ancestor–descendant. However, the lack of fossil evidence from the time between 3.6 and 3.9 Ma has been one of its weakest points. Recent fieldwork in the Woranso-Mille study area in the Afar region of Ethiopia has yielded fossil hominids dated between 3.6 and 3.8 Ma. These new fossils play a significant role in testing the proposed relationship between Au. anamensis and Au. afarensis . The Woranso-Mille hominids (3.6–3.8 Ma) show a mosaic of primitive, predominantly Au. anamensis -like, and some derived ( Au. afarensis -like) dentognathic features. Furthermore, they show that, as currently known, there are no discrete and functionally significant anatomical differences between Au. anamensis and Au. afarensis . Based on the currently available evidence, it appears that there is no compelling evidence to falsify the hypothesis of ‘chronospecies pair’ or ancestor–descendant relationship between Au. anamensis and Au. afarensis . Most importantly, however, the temporally and morphologically intermediate Woranso-Mille hominids indicate that the species names Au. afarensis and Au. anamensis do not refer to two real species, but rather to earlier and later representatives of a single phyletically evolving lineage. However, if retaining these two names is necessary for communication purposes, the Woranso-Mille hominids are best referred to as Au. anamensis based on new dentognathic evidence.
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Barrett, John C. "The Archaeology of Mind: It's Not What You Think." Cambridge Archaeological Journal 23, no. 1 (February 2013): 1–17. http://dx.doi.org/10.1017/s0959774313000012.
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Narratives of human evolution place considerable emphasis upon human cognitive development resulting from the evolution of brain architecture and witnessed by the production of ‘symbolic’ material culture. Recent work has modified the narrative to the extent that cognitive development is treated as the product of humanity's ability to download certain aspects of brain functionality, such as the storage of information, into external media. This article questions the centrality given to the history of brain architecture as determinate of human cognition by rejecting the widespread assumption that cognition trades in representations, either stored internally in the brain or downloaded externally into cultural media. The alternative, offered here, is that human cognitive development was constructed through the development of joint attention made possible by the anatomical development of hominins and that this sustained a shared empathy between social agents in their practical understanding of the qualities of materiality.
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Gangale, Giuseppe. "Utopia and Providence in the humanism of Thomas More: “Man is a god for man, if he knows his duty”." Moreana 48 (Number 183-, no. 1-2 (June 2011): 193–203. http://dx.doi.org/10.3366/more.2011.48.1-2.10.
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This article argues that the oldest representation of the loving and providential attitude of More’s spirit is the maxim homo homini deus est, si suum officium sciat (“man is a god for man, if he knows his duty”). This essay shows that the key to reading the humanistic concept turns exclusively on the affirmation of Caecilius Statius, with a tone probably more hopeful than objective. More than a realistic analysis of truth, this could be a future challenge posed for man so that he will pay attention to all humanity. In reality, this ethical concept of life is more obviously shown in Utopia, when More proposes a constructive vision of a world where peace and social justice prevail, where family and personal relationships are marked by gifts and mutual benefit.
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Zlatev, Jordan, Przemysław Żywiczyński, and Sławomir Wacewicz. "Pantomime as the original human-specific communicative system." Journal of Language Evolution 5, no. 2 (August 1, 2020): 156–74. http://dx.doi.org/10.1093/jole/lzaa006.
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Abstract We propose reframing one of the key questions in the field of language evolution as what was the original human-specific communicative system? With the help of cognitive semiotics, first we clarify the difference between signals, which characterize animal communication, and signs, which do not replace but complement signals in human communication. We claim that the evolution of bodily mimesis allowed for the use of signs, and the social-cognitive skills needed to support them to emerge in hominin evolution. Neither signs nor signals operate single-handedly, but as part of semiotic systems. Communicative systems can be either monosemiotic or polysemiotic—the former consisting of a single semiotic system and the latter, of several. Our proposal is that pantomime, as the original human-specific communicative system, should be characterized as polysemiotic: dominated by gesture but also including vocalization, facial expression, and possibly the rudiments of depiction. Given that pantomimic gestures must have been maximally similar to bodily actions, we characterize them as typically (1) dominated by iconicity, (2) of the primary kind, (3) involving the whole body, (4) performed from a first-person perspective, (5) concerning peripersonal space, and (6) using the Enacting mode of representation.
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Jalles-Filho, Euphly, Rogério Grassetto Teixeira Da Cunha, and Rodolfo Aureliano Salm. "Transport of tools and mental representation: is capuchin monkey tool behaviour a useful model of Plio-Pleistocene hominid technology?" Journal of Human Evolution 40, no. 5 (May 2001): 365–77. http://dx.doi.org/10.1006/jhev.2000.0461.
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McWhorter, John. "LANGUAGE AND HUMAN BEHAVIOR.Derek Bickerton. Seattle: University of Washington Press, 1995. Pp. 180. $24.95 cloth, $14.95 paper." Studies in Second Language Acquisition 20, no. 3 (September 1998): 442–43. http://dx.doi.org/10.1017/s0272263198233079.
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Many will question Bickerton's claim that only humans are capable of mental engagement with anything but the immediate present. However, the heart of his argument—that language did not evolve as a development from high intelligence but is instead what allowed that intelligence to develop at all—is undeniably compelling. Under this conception, the emergence of language, not just intelligence, was what allowed humans to conquer the world. In support, Bickerton notes that the appearance of modern civilization was preceded by eons by cultural stasis during which hominid brains were nevertheless increasing vastly in size, which suggests that something besides mere brain power created modern man. He also notes that if human-like intelligence allowed world domination, then at least some animals should by now have developed it, even without language. Instead, only humans can profoundly alter their surroundings, which suggests that language, the trait most unequivocally unique to humans, is indeed the key to our hegemony. Bickerton even equates language and thought, arguing that their foundation upon the same syntax leaves no motivation to separate them, and considers both to evidence a layer of abstract representation unique to humans. In turn, he proposes that this layer is able to “observe” the lower layer, thus creating “consciousness.” The uniqueness of consciousness to humans is thus explained by its roots in a layer of representation unique to humans.
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Zalewski, Bartosz. "UWAGI NA TEMAT ‘COMPENSATIO’ W TWÓRCZOŚCI WYBRANYCH PRZEDSTAWICIELI SZKOŁY GLOSATORÓW." Zeszyty Prawnicze 16, no. 2 (December 9, 2016): 61. http://dx.doi.org/10.21697/zp.2016.16.2.03.
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Remarks on ‘compensatio’ in the Work of Selected Representatives of the School of GlossatorsSummaryThe institution of remitting reciprocal receivables and payables by setting them off against each other down to the amount of the lesser debt (compensatio) goes back Roman law. But the duality involved in such practices in modern European legal systems is the result of later developments in the medieval discourse on whether the effects of set-off ensued sine facto hominis, i.e. on the grounds of the provision as such, or on the grounds of a constitutive declaration of will made by one of the reciprocal creditors.This problem was debated in the School of Glossators which was founded in the 11th century by Irnerius. The aim of this paper is to describe the views held by selected glossators of Roman law and to present their influence on subsequent legal solutions adopted in 19th- and 20th-century civil codifications.
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Kuznetsova, M. V., М. G. Маммаеvа, L. V. Кirichenko, M. A. Shishkin, and V. А. Demakov. "STRUCTURE OF MICROBIAL COMMUNITIES OF THE ARTIFICIAL SALT CONSTRUCTIONS OF THE PERM REGION." Вестник Пермского университета. Серия «Биология»=Bulletin of Perm University. Biology, no. 2 (2020): 120–27. http://dx.doi.org/10.17072/1994-9952-2020-2-120-127.
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The diversity of microbial communities the artificial salt constructions (ASC) located in the medicalpreventive and sanatorium institutions of the Perm region was studied. It was found that the surfaces of the abiotic salt of all ASC were contaminated with microorganisms, and a significant difference was found between the constructions of sylvinite (86.5% of positive samples) and halite (47.4%). The number of viable bacteria, as well as staphylococci, were also higher in sylvinite constructions than in halite ones. Based on bacteriological research and analysis of the 16S rRNA gene nucleotide sequences, the isolated staphylococcus strains belong to the following species: Staphylococcus epidermidis – 42.3% (n=11), S. aureus and S. saprophyticus – 19.2% (n=5), S. simulans – 7.7% (n=2) and one strain of S. cohnii urealyticum, S. hominis, S. warneri – 3.8%. The species composition of microbiocenoses formed on surfaces determined by gas chromatography–mass spectrometry included representatives of 18 genera belonging to the three main phylums: Actinobacteria, Firmicutes and Proteobacteria. Actinobacteria (Actinomyces, Corynebacterium, Nocardia, Propionibacterium, Rhodococcus, etc.) were dominant in both groups ASC. Among Firmicutes, representatives of the genus Clostridium predominated in sylvinite ASC – 63.8% of the total number of bacteria, while in halite they were half as many – 32.1%. The content of coccal microbiota, in contrast, in halite constructions was almost 3 times higher than in sylvinite. Identified quantitative and qualitative indicators of the microbiota of the ASC complement the understanding of the constructions of microbial communities under conditions of high salt load and anthropogenic impact.
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Garcia, Cécile, Sébastien Bouret, François Druelle, and Sandrine Prat. "Balancing costs and benefits in primates: ecological and palaeoanthropological views." Philosophical Transactions of the Royal Society B: Biological Sciences 376, no. 1819 (January 11, 2021): 20190667. http://dx.doi.org/10.1098/rstb.2019.0667.
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Maintaining the balance between costs and benefits is challenging for species living in complex and dynamic socio-ecological environments, such as primates, but also crucial for shaping life history, reproductive and feeding strategies. Indeed, individuals must decide to invest time and energy to obtain food, services and partners, with little direct feedback on the success of their investments. Whereas decision-making relies heavily upon cognition in humans, the extent to which it also involves cognition in other species, based on their environmental constraints, has remained a challenging question. Building mental representations relating behaviours and their long-term outcome could be critical for other primates, but there are actually very little data relating cognition to real socio-ecological challenges in extant and extinct primates. Here, we review available data illustrating how specific cognitive processes enable(d) modern primates and extinct hominins to manage multiple resources (e.g. food, partners) and to organize their behaviour in space and time, both at the individual and at the group level. We particularly focus on how they overcome fluctuating and competing demands, and select courses of action corresponding to the best possible packages of potential costs and benefits in reproductive and foraging contexts. This article is part of the theme issue ‘Existence and prevalence of economic behaviours among non-human primates’.
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Pidpala, O. V., and L. L. Lukash. "Formation of the L1Hs retroelement in the intron of the MGMT gene of hominoidea." Faktori eksperimental'noi evolucii organizmiv 24 (August 30, 2019): 338–44. http://dx.doi.org/10.7124/feeo.v24.1126.
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Aim. Analyze the formation of a human-specific L1Hs element in the intron 3 of the MGMT gene on an example of a hominid. Methods. The results of the search and identification of mobile genetic elements were performed using the CENSOR program. The homology between nucleotide sequences was determined by BLAST 2.6.1. Results. The components of the cluster, where the L1Hs element in the human being was formed, are fragments of the L1PA6 element, which are common in the monkeys of the Old and New World. In the gibbon, among the L1 element groups, there are representatives of older subfamilies (L1PB, L1MC, L1MD and L1ME), and the partial homology to the L1Hs of the element is predominantly of elements of groups that have arisen in the mammalian genomes. Conclusions. Formation of a human-specific L1Hs element occurred during the evolution of Hominoidea in parallel with the formation of the cluster structure of MGE in humans from different subfamilies of LINE1-elements whose component components, obviously, also involved in the formation of the L1Hs element.
Keywords: Hominoidea, MGMT gene, intron 3, human-specific L1Hs element.
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Hidalgo Andrade, Gabriel. "Ad hominem: representación narrativa del enemigo oficial después del 30S en Ecuador." ComHumanitas: revista científica de comunicación 11, no. 1 (April 27, 2020): 149–65. http://dx.doi.org/10.31207/rch.v11i1.234.
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En el 2020 se cumple una década de la tragedia sucedida con el amotinamiento policial del 30 de septiembre de 2010. Según un informe del Ministerio de Salud, ese día hubo 10 fallecidos a escala nacional. Inmediatamente después de la recuperación del cauce constitucional, los poderes representativos intentaron beneficiarse políticamente de lo sucedido. En el presente artículo académico exploraré la elaboración de la imagen construida por el oficialismo alrededor de la oposición política al gobierno del presidente ecuatoriano Rafael Correa Delgado después de la rebelión policial del 30 de septiembre de 2010 o llamada también como 30S y sucedida en la ciudad de Quito. Responderé a qué registro discursivo corresponde la categorización a los acusados de ser los responsables del hecho y cómo utilizó el régimen este discurso maniqueo para generar una respuesta mediática que luego se convirtió en acoso público, encarcelamiento y persecución política.
Para lograr el objetivo de este trabajo utilizaré la narrativa inmediata del régimen ecuatoriano; estudiaré el primer discurso del presidente Rafael Correa luego de ser rescatado (2010-09-30), y la rueda de prensa posterior a estas declaraciones (2010-09-30); analizaré los enlaces ciudadanos nro. 190 (2010-10-02) y nro. 191 (2010-10-09) además de una entrevista concedida al programa “A solas” de Russia Today en español (2010-10-20) dedicada exclusivamente al tratamiento de la experiencia del 30 de septiembre de 2010.
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Slotemaker, John T. "‘“Fuisse in Forma Hominis” belongs to Christ Alone’: John Calvin's trinitarian hermeneutics in hisLectures on Ezekiel." Scottish Journal of Theology 68, no. 4 (October 15, 2015): 421–36. http://dx.doi.org/10.1017/s0036930615000228.
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AbstractThe present article examines John Calvin's trinitarian and christological interpretation of Old Testament theophanies in hisPraelectioneson Ezekiel 1. The first section of the article treats Calvin's exegetical principles. It is noted that Calvin defends a strict set of rules for how to interpret Old Testament theophanies: in short, Calvin argues that if a passage presents the divine nature in the form of a human person, that given theophany must be interpreted as a representation of the second person of the Trinity, the Son of God (i.e. Jesus Christ). In defending this position, Calvin examines in great detail various rules for how to interpret Old Testament passages which indicate a plurality within the divine nature (i.e. the Trinity). He defends his exegetical approach to these texts with numerous passages from the New Testament.This examination of Calvin's exegesis is contextualised in two ways. First, it is noted that Calvin's exegesis of these passages is uncharacteristically more ‘strict’ in its trinitarian and christological reading than one finds in earlier thinkers such as Augustine and Jerome. For example, Augustine argued that Old Testament theophanies which present God in the form of a human being could be understood as the Father, the Son or the Holy Spirit. Augustine, in short, does not think one can definitively determine which member of the Trinity is ‘present’ in a theophany. Second, it is noted that this surprising development in Calvin's final work is the result of the rising threat of anti-trinitarianism in Transylvania. Thus, the article argues that the rise of Polish anti-trinitarianism not only contributed to Calvin's renewed interest in trinitarian and christological interpretations of the Old Testament, but it also pushed him to develop a more strict set of exegetical rules which govern how such passages are interpreted.Therefore, the article presents a reading of Calvin which strongly suggests that any complete analysis of Calvin's alleged ‘Judaising’ must develop a historically nuanced methodology. While it is often argued that Calvin hesitates from interpreting Old Testament passages in a strictly trinitarian or christological way, it must be acknowledged that towards the end of his career he radically began to alter his exegetical rules/method given the renewed threat of the anti-trinitarians.
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Evsyutina, Daria V., Gleb Y. Fisunov, Olga V. Pobeguts, Sergey I. Kovalchuk, and Vadim M. Govorun. "Gene Silencing through CRISPR Interference in Mycoplasmas." Microorganisms 10, no. 6 (June 5, 2022): 1159. http://dx.doi.org/10.3390/microorganisms10061159.
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Mycoplasmas are pathogenic, genome-reduced bacteria. The development of such fields of science as system and synthetic biology is closely associated with them. Despite intensive research of different representatives of this genus, genetic manipulations remain challenging in mycoplasmas. Here we demonstrate a single-plasmid transposon-based CRISPRi system for the repression of gene expression in mycoplasmas. We show that selected expression determinants provide a level of dCas9 that does not lead to a significant slow-down of mycoplasma growth. For the first time we describe the proteomic response of genome-reduced bacteria to the expression of exogenous dcas9. The functionality of the resulting vector is confirmed by targeting the three genes coding transcription factors-fur, essential spxA, whiA, and histone-like protein hup1 in Mycoplasma gallisepticum. As a result, the expression level of each gene was decreased tenfold and influenced the mRNA level of predicted targets of transcription factors. To illustrate the versatility of this vector, we performed a knockdown of metabolic genes in a representative member of another cluster of the Mycoplasma genus-Mycoplasma hominis. The developed CRISPRi system is a powerful tool to discover the functioning of genes that are essential, decipher regulatory networks and that can help to identify novel drug targets to control Mycoplasma infections.
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Kaganova, M. A., N. V. Spiridonova, and E. A. Makhlina. "Microbiota of fetal membranes in intact amniotic sac and full-term pregnancy." JOURNAL of SIBERIAN MEDICAL SCIENCES, no. 1 (2021): 4–11. http://dx.doi.org/10.31549/2542-1174-2021-1-4-11.
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Aim of research. To study the microbial landscape of intact fetal membranes in full-term pregnancy. Materials and methods. In 19 pregnant women (mean age — 31.0 ± 5.3 years, mean gestational age — 39.3 ± 0.65 weeks) with intact fetal membranes, the fetal membrane tissue was collected during elective cesarean section to detect by polymerase chain reaction the following microorganisms: Lactobacillus spp., Enterobacteriaceae, Streptococcus spp., Staphylococcus spp., Gardnerella vaginalis/Prevotella bivia/Porphyromonas spp., Eubacterium spp., Sneathia spp./Leptotrihia spp./ Fusobacterium spp., Megasphaera spp./Veillonella spp./ Dialister spp., Lachnobacterium spp./Clostridium spp., Mobiluncus spp./Corynebacterium spp., Peptostreptococcus spp., Atopobium vaginae, Mycoplasma hominis, Ureaplasma (urealyticum + parvum), Candida spp., Mycoplasma genitalium. Results. Sterile membranes were found in 5 pregnant women (26.3%), in the remaining cases, the total bacterial load (TBL) was 104.5 (103.5–105.8) genome equivalents (GE) per sample. Representatives of the Enterobacteriaceae family prevailed — 104.5 GE per sample on average, only in one case Candida spp. were detected. In 42.1% of cases, when determining TBL, specific types of microorganisms were not identified. Conclusion. On the fetal membranes in full-term pregnancy, the average TBL corresponding to 104.5 (103.5–105.8) GE per sample, in which Enterobacteriaceae prevail in the amount of 104.5 GE per sample on average, is acceptable.
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Dudlová, A., P. Juriš, S. Jurišová, P. Jarčuška, and V. Krčméry. "Epidemiology and geographical distribution of gastrointestinal parasitic infection in humans in Slovakia." Helminthologia 53, no. 4 (December 1, 2016): 309–17. http://dx.doi.org/10.1515/helmin-2016-0035.
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Summary Examinations of the set of 2,760 samples of human stools revealed the current epidemiological situation in the occurrence of gastrointestinal parasitoses in Slovakia. Prevalence of gastrointestinal parasitic infection was P = 6.81 % out of which the protozoan infections was P = 2.64 % and helminthiases P = 4.17 %, in the representation of endoparasitic species Entamoeba coli, Giardia intestinalis, Blastocystis hominis, Endolimax nana, Ascaris lumbricoides, Trichuris trichiura and Enterobius vermicularis. The species with the highest proportion from the protozoa was Entamoeba coli (P = 0.79 %) and from the helminths Ascaris lumbricoides (P = 3.73 %). The highest prevalence of protozoan infections (P = 3.27 %) was found in the age group 8 – 18 yearly and helminthic infections (P = 5.84 %) in the lowest age group of children at the age of 1 month to 7 years. Almost regularly, there was most frequently infection with Endolimax nana, Giardia intestinalis and Ascaris lumbricoides. By comparison of all age categories, a high statistical significance of differences in the prevalence of helminthiases was found, which most frequently infected children aged from 1 month to 7 years (X2, p≤ 0.0001). The statistical significance of differences in the incidence of protozoan infections (X2, p≤ 0.01) and helminthiases (X2, p≤ 0.0001) was recorded between the compared regions of Slovakia (Western, Central and Eastern Slovakia) with the highest prevalence in the eastern region of Slovakia.
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Winkelman, Michael. "Shamanism and Cognitive Evolution (with comments)." Cambridge Archaeological Journal 12, no. 1 (April 2002): 71–101. http://dx.doi.org/10.1017/s0959774302000045.
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Shamanic referents in Upper Palaeolithic cave art indicate its pivotal role in the Middle–Upper Palaeolithic transition. Etic models of shamanism derived from cross-cultural research help articulate the shamanic paradigm in cave art and explicate the role of shamanism in this transition. Shamanism is found cross-culturally in hunter-gatherer societies, constituting an ecological and psychosociobiological adaptation that reflects the ritual and cosmology of early modern humans. Shamanism played a role in cognitive and social evolution through production of analogical thought processes, visual symbolism and group-bonding rituals. Universals of shamanism are derived from innate modules, particularly the hominid ‘mimetic controller’ and music and dance. These induced altered states of consciousness, which produce physiological, cognitive, personal and social integration through integrative brain-processing. Shamanic altered states of consciousness have the cross-modal integration characteristic of the emergent features of Palaeolithic thought and facilitated adaptations to the ecological and social changes of the Upper Palaeolithic. Cross-modular integration of innate modules for inferring mental states (mind), and social relations (self/others), and understanding the natural world (classificatory schemas) produced the fundamental forms of trope (metaphor) that underlay analogical representation. These integrations also explain animism (mental and social modules applied to natural domains); totemism (natural module applied to social domain); and guardian spirit relations (natural module applied to self and mental domains).
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Atran, Scott, and Ara Norenzayan. "Religion's evolutionary landscape: Counterintuition, commitment, compassion, communion." Behavioral and Brain Sciences 27, no. 6 (December 2004): 713–30. http://dx.doi.org/10.1017/s0140525x04000172.
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Religion is not an evolutionary adaptation per se, but a recurring cultural by-product of the complex evolutionary landscape that sets cognitive, emotional, and material conditions for ordinary human interactions. Religion exploits only ordinary cognitive processes to passionately display costly devotion to counterintuitive worlds governed by supernatural agents. The conceptual foundations of religion are intuitively given by task-specific panhuman cognitive domains, including folkmechanics, folkbiology, and folkpsychology. Core religious beliefs minimally violate ordinary notions about how the world is, with all of its inescapable problems, thus enabling people to imagine minimally impossible supernatural worlds that solve existential problems, including death and deception. Here the focus is on folkpsychology and agency. A key feature of the supernatural agent concepts common to all religions is the triggering of an “Innate Releasing Mechanism,” or “agency detector,” whose proper (naturally selected) domain encompasses animate objects relevant to hominid survival – such as predators, protectors, and prey – but which actually extends to moving dots on computer screens, voices in wind, and faces on clouds. Folkpsychology also crucially involves metarepresentation, which makes deception possible and threatens any social order. However, these same metacognitive capacities provide the hope and promise of open-ended solutions through representations of counterfactual supernatural worlds that cannot be logically or empirically verified or falsified. Because religious beliefs cannot be deductively or inductively validated, validation occurs only by ritually addressing the very emotions motivating religion. Cross-cultural experimental evidence encourages these claims.
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Radziej, Robert, and Katarzyna Molek-Kozakowska. "Anti-pluralist arguments in the Tea Party online discourse: A mixed method analysis of populist rhetoric." "Res Rhetorica" 9, no. 3 (October 10, 2022): 98–119. http://dx.doi.org/10.29107/rr2022.3.6.
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Populism can be treated as an ideological attribute of political parties, but in this study, it is operationalized as a feature of argumentation that allows populists to claim to be the only ones to represent the interests of the nation. Such anti-pluralist arguments could be observed during US midterm elections in 2018 in online discourses of the right-wing political movement Tea Party. This article reports on a mixed-method study of the Tea Party’s official website obtained through scraping the All News feed. The quantitative linguistic analysis of keywords, concordances and couplings in the newsfeed sample is complemented with a qualitative rhetorical analysis of some topoi and argumentative fallacies. The analyses reveal such strategies as: (1) homogenizing the representation of true patriots, (2) polarizing between “good us” and “evil them,” (3) discrediting opponents through analogies, “worst” examples and ad hominem attacks (4) conspiracy theorizing, and (5) mobilizing modes of pathos and ethos in relation to mediatized and historicized cultural imaginaries. The study showcases the advantages of a mixed-method approach to the so-called populist rhetoric.
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Liew, Brandon K. "The Unquiet Dreams of Lesser Malaysian Writers." Archiv orientální 89, no. 2 (September 30, 2021): 283–310. http://dx.doi.org/10.47979/aror.j.89.2.283-310.
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Using the ‘Global Malaysian Novel’ as a focal point, my paper demonstrates how the emergence of this critical conceptualization is a shift that problematizes traditional postmodern and postcolonial modes that have not yet transcended the nation as a frame of reference. When ‘Global Malaysian Novels’ are being written, marketed and sold outside Malaysian borders, to what extent do these texts retain their capacity for representation: Asian identities, national identities, regional and diasporic? While a critique of their complicity in Global Literary Markets centered in the U.K. and U.S. is often reduced to an ad hominem attack, there remains much to be said about the effects of their increasingly transnational material productions upon their more formally understood aesthetic and literary qualities. As such, I explore the discursive effects of the ‘Global Malaysian Novel’ as a transnational production in Southeast Asia, and how literary scholars have approached contemporary Asian literatures and attempted to situate them within realms of the national, within postcolonial Southeast Asia and within wider World Literature frameworks. In particular, I chart not only the historical production of literary texts written in English in Southeast Asia since 1945, but the current discourse of English Literary studies in the region.
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Bezrukova, Alina A., Natalya V. Spiridonova, Maria A. Kaganova, and Darya A. Galkina. "Features of the microbiota of placenta in full-term pregnancy." Aspirantskiy Vestnik Povolzhiya 20, no. 5-6 (July 15, 2020): 7–14. http://dx.doi.org/10.17816/2072-2354.2020.20.3.7-14.
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Objective: to study the microbial landscape of the placenta in full-term pregnancy and intact fetal membranes.
Materials and methods. 19 pregnant women in the gestational age of 37-41 weeks with intact membranes underwent elective cesarean section at Samara City Clinical Hospital No. 1 named after N.I. Pirogov. Their placental tissues were collected and RT-PCR tests for Lactobacillus spp., Enterobacteriaceae, Streptococcus spp., Staphylococcus spp., Gardnerella vaginalis / Prevotella bivia / Porphyromonas spp., Eubacterium spp., Sneathia spp. / Leptotrihia spp. / Fusobacterium spp, Megasphaera spp. / Veillonella spp. / Dialister spp., Lachnobacterium spp. / Clostridium spp., Mobiluncus spp. / Corynebacterium spp., Peptostreptococcus spp., Atopobiumvaginae, Mycoplasma hominis, Ureaplasma (urealyticum + parvum), Candida spp., Mycoplasma henitalium were performed.
Results. In case of physiological full-term pregnancy the total bacterial mass can be 103.9-103.7 GE/sample on the placenta, it is a normal variant. Sterile placentas were found in 21.1% of cases. Unknown microorganisms were revealed in 52.6% of cases, they were unidentified by the standard panel Femoflor-16. In other cases Enterobacteriaceae spp. (102.6 GE/sample) were found in the placental tissues in patients with intact fetal membrane. The presence of Lactobacillus spp. in the placental tissues with intact membranes is not typical.
Conclusion. RT-PCR test allow to reveal a small amount of bacterial mass in the placental tissue in case of physiological full-term pregnancy, in which the representatives of Enterobacteriaceae spp. are often time detected.
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Kaganova, M. A., N. V. Spiridonova, and L. K. Medvedchikova-Ardiya. "Features of amniotic fluid microbiota in full-term pregnancy." Perm Medical Journal 37, no. 6 (January 28, 2021): 13–24. http://dx.doi.org/10.17816/pmj37613-24.
Full textAbstract:
Objective. To study the microbial landscape of amniotic fluid in physiological process of full-term pregnancy. Recently, after publication of a number of studies regarding human microbiota (The Human Microbiome Project HMP), there occurred a change in paradigm on absolute sterility of fetal membranes and amniotic fluid in physiologically developing pregnancy.
Materials and methods. At the City Clinical Hospital № 1 named after N.I. Pirogov, during elective cesarean section of 19 pregnant women (at the terms of 3741 weeks) with intact fetal membranes, an amniotic fluid of the following microorganisms was taken by means of PCR-PB: Lactobacillus spp., Enterobacteriaceae, Streptococcus spp., Staphylococcus spp., Gardnerella vaginalis / Prevotella bivia / Porphyromonas spp., Eubacterium spp., Sneathia spp. / Leptotrihia spp. / Fusobacterium spp., Megasphaera spp. / Veillonella spp. / Dialister spp., Lachnobacterium spp. / Clostridium spp., Mobiluncus spp. / Corynebacterium spp., Peptostreptococcus spp., Atopobium vaginae, Mycoplasma hominis, Ureaplasma (urealyticum + parvum), Candida spp., Mycoplasma henitalium.
Results. The general bacterial mass (GBM) of amniotic fluid in intact fetal membranes is 103,02 Ge/copies, in 47.4 % of cases the amniotic fluid is sterile. Microbiota is most often presented by Enterobacteriaceae spp. 37 %, the share of the rest, identified bacteria is 28 %, the share of unknown is 35 %.
Conclusions. In case of physiologically developing pregnancy and intact fetal membranes, the general bacterial mass is low (GBM = 103,02 345 Ge/ml). In the intact amniotic sac the most typical microorganisms living in amniotic fluid are Enterobacteriaceae spp. (37 %), the rest are presented in single instances. The presence of the representatives of anaerobic vaginal dysbiosis as well as lactobacilli is not typical for the intact fetal membranes.
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Fernández-Jalvo, Yolanda, Lucía Rueda, Fernando Julian Fernández, Sara García-Morato, María Dolores Marin-Monfort, Claudia Ines Montalvo, Rodrigo Tomassini, Michael Chazan, Liora K. Horwitz, and Peter Andrews. "Understanding the Impact of Trampling on Rodent Bones." Quaternary 5, no. 1 (February 10, 2022): 11. http://dx.doi.org/10.3390/quat5010011.
Full textAbstract:
Experiments based on the premise of uniformitarism are an effective tool to establish patterns of taphonomic processes acting either before, or after, burial. One process that has been extensively investigated experimentally is the impact of trampling to large mammal bones. Since trampling marks caused by sedimentary friction strongly mimic cut marks made by humans using stone tools during butchery, distinguishing the origin of such modifications is especially relevant to the study of human evolution. In contrast, damage resulting from trampling on small mammal fossil bones has received less attention, despite the fact that it may solve interesting problems relating to site formation processes. While it has been observed that the impact of compression depends on the type of substrate and dryness of the skeletal elements, the fragility of small mammal bones may imply that they will break as a response to compression. Here, we have undertaken a controlled experiment using material resistance compression equipment to simulate a preliminary experiment, previously devised by one of us, on human trampling of owl pellets. Our results demonstrate that different patterns of breakage can be distinguished under wet and dry conditions in mandibles, skulls and long bones that deform or break in a consistent way. Further, small compact bones almost always remain intact, resisting breakage under compression. The pattern obtained here was applied to a Pleistocene small mammal fossil assemblage from Wonderwerk Cave (South Africa). This collection showed unusually extensive breakage and skeletal element representation that could not be entirely explained by excavation procedures or digestion by the predator. We propose that trampling was a significant factor in small mammal bone destruction at Wonderwerk Cave, partly the product of trampling caused by the raptor that introduced the microfauna into the cave, as well as by hominins and other terrestrial animals that entered the cave and trampled pellets covering the cave floor.
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Gasparyan, K. A., V. K. Kondratyuk, I. G. Ponomareva, K. O. Kondratyuk, N. P. Dzis, and T. O. Lisyana. "Features of vaginal microbiocenosis in women of reproductive age with overweight and obesity." Reports of Morphology 27, no. 1 (March 30, 2021): 50–57. http://dx.doi.org/10.31393/morphology-journal-2021-27(1)-07.
Full textAbstract:
Overweight and obesity play a negative role in gynecological and obstetric practicE.In women, the frequency of infectious pathology increases against the background of metabolic disorderS.The most common form of infectious vaginitis is bacterial urogenital candidiasis, in the etiological structure of which a significant role belongs to the fungi Candida albicans, as well as Candida non-albicans: C.glabrata, C.tropicalis, C.parapsilosis, C.krusei. Associations of Candida fungi with various representatives of opportunistic microflora, such as gram-positive and gram-negative aerobic, facultative-anaerobic and obligate-anaerobic microorganisms, are often formed. As a result, numerous bacterial pathogens multiply and the number of lactobacilli, which are usually part of the bacterial flora of the vagina, is significantly reduced. In bacterial vaginosis (BV), the concentration of anaerobic pathogens Peptostreptococcus sp, Gardnerella vaginalis, Peptostreptococcus Mobiluncus sp, Mycoplasma hominis can increase 100 timeS.Activation of Atopobium vaginae and Gardnerella vaginalis, which play a “key” role in the pathogenesis of BV, has been proven. The aim of the study was to study changes in the vaginal microbiome in women with candidiasis and bacterial vaginosis in order to improve existing treatment regimenS.We examined 120 women of reproductive age with overweight and obesity. The degree of microbial contamination was determined and the maximum possible spectrum of aerobic and facultative-anaerobic microflora was detected. In women with vulvovaginal candidiasis, overweight and obesity, a high concentration (lg5.8 CFU/ml) of Candida fungi was found, and in 95% of patients two-, three- and four-component associations of Candida fungi with various representatives of conditional pathogenic microflora. Lactobacillus deficiency was found in 58.3% of patients, and their complete absence – in 10.0%. Bacteriological examination of the vaginal contents of women with vaginosis and obesity revealed significant dysbiotic disorders of the vaginal microflora, three-, four- and even five-component associations of anaerobic and facultative anaerobic microflora with a predominance of anaerobeS.A low seeding level of lactobacilli (lg2.2 CFU/ml) was established. Thus, the gram-positive anaerobic and facultative anaerobic microflora of Firmicutes have a significant share in the spectrum of vaginal microflora in overweight and obese patients, in contrast to non-obese women of reproductive agE.In women of reproductive age with vulvovaginal candidiasis and obesity, in contrast to non-obese patients, a higher frequency of fungal-bacterial associations, a higher quantitative level of vaginal contamination by Candida albicans and non-albicans with a lack or general absence of lactoflora.
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Penwill, J. L. "Quintilian, Statius and the Lost Epic of Domitian." Ramus 29, no. 1 (2000): 60–83. http://dx.doi.org/10.1017/s0048671x00001697.
Full textAbstract:
‘sophos’ uniuersi clamamus et sublatis manibus ad cameram iuramus Hipparchum Aratumque comparandos illi homines non fuisse…(‘Fantastic!’ we all cry, and raising our hands to the ceiling we swear that not even Hipparchus and Aratus could have been put on a par with him.)Petronius SatyriconThis then is the visible work of Menard, in chronological order….I turn now to his other work: the subterranean, the interminably heroic, the peerless.Jorge Luis Borges, ‘Pierre Menard, Author of the Quixote’The Flavians needed a poet. When Octavian established the Julio-Claudian dynasty he had in his hands a usefully exploitable victory over the forces of chaos and oriental despotism, a spin on Actium and its aftermath that was given full epic representation in the Aeneid's description of Aeneas' shield (Aen. 8.671-713); Antony was compromised by Cleopatra and years of propaganda, and it all took place far enough away for the final act in what everyone knew was a civil war to be portrayed as defeat of a foreign power and celebrated as such in the traditional manner (Caesar triplici inuectus Rotnana triumpholmoenia…, ‘Caesar, borne within the walls of Rome in triple triumph’, Aen. 8.714f.). By contrast the Flavian ascendancy was achieved through assault on these selfsame walls, and involved the desecration and burning of the Capitol (Tac. Hist. 3.69-74, who remarks id facinus post conditam urbem luctuosissimum foedissimumque rei publicae populi Romani accidit, ‘this was the most deplorable and outrageous crime to befall the republic of the Roman people since the foundation of the city’).
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Silva Barroso, Pablo Gabriel, Teresa Bardají, Javier Baena-Preysler, Jorge Luis Giner-Robles, Jan Van der Made, Cari Zazo, Antonio Rosas, and Javier Lario. "Tabla cronoestratigráfica del Cuaternario de la península ibérica (v 3.0): Nuevos datos estratigráficos, paleontológicos y arqueológicos." Cuaternario y Geomorfología 35, no. 3-4 (December 16, 2021): 121–45. http://dx.doi.org/10.17735/cyg.v35i3-4.89346.
Full textAbstract:
La tercera edición de la Tabla Cronoestratigráfica del Cuaderno de la península ibérica (v 3.0) sustituye a las versiones más antiguas editadas en 2007 (v 1.0) y 2009 (v 2.0). Desde esta fecha la Comisión Internacional de Estratigrafía (ICS), y más concretamente la Subcomisión de Estratigrafía del Cuaternario (SQS), ha estado trabajando tanto en la definición del Periodo Cuaternario como en sus subdivisiones, aportando nuevos GSSP (Global Stratotype Section and Points) para los mismos. La nueva tabla incluye los GSSPs recientemente aprobados para la subdivisión de la Serie Holocena (Groenlandiense, Norgripiense y Meghalayense), así como el nuevo piso Chibaniense (774,1 - 128,0 ka) ratificado por la IUGS a principios del 2020, que sustituye al Pleistoceno medio. Esta versión 3.0 también incluye todas las modificaciones y correcciones que han surgido desde entonces, incluyendo la actualización de datos, fechas y dataciones para los yacimientos paleontológicos y/o arqueológicos más representativos de la península. Asimismo, se ha revisado la extensión de los diferentes periodos climáticos considerados para Europa central y Alpes ajustándose a las biozonas de mamíferos y las faunas asociadas. La extensión de estas últimas ha de entenderse referida a Europa central y meridional no solo a la península ibérica. En la distribución temporal de periodos de la prehistoria y complejos tecno-culturales asociados se diferencia entre el continente africano y europeo. De la misma forma la sucesión de especies de homininos se centra también en estos dos continentes. Esta revisión ofrece una lista de referencias actualizada, así como una versión digital interactiva que se implementará próximamente.
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Lvov, Dmitry K., Sergey V. Alkhovsky, and Oleg Petrovich Zhirnov. "130th anniversary of virology." Problems of Virology 67, no. 5 (November 19, 2022): 357–84. http://dx.doi.org/10.36233/0507-4088-140.
Full textAbstract:
130 years ago, in 1892, our great compatriot Dmitry Iosifovich Ivanovsky (18641920) discovered a new type of pathogen viruses. Viruses have existed since the birth of life on Earth and for more than three billion years, as the biosphere evolved, they are included in interpopulation interactions with representatives of all kingdoms of life: archaea, bacteria, protozoa, algae, fungi, plants, invertebrates, and vertebrates, including the Homo sapiens (Hominidae, Homininae).
Discovery of D.I. Ivanovsky laid the foundation for a new science virology. The rapid development of virology in the 20th century was associated with the fight against emerging and reemerging infections, epidemics (epizootics) and pandemics (panzootics) of which posed a threat to national and global biosecurity (tick-borne and other encephalitis, hemorrhagic fevers, influenza, smallpox, poliomyelitis, HIV, parenteral hepatitis, coronaviral and other infections). Fundamental research on viruses created the basis for the development of effective methods of diagnostics, vaccine prophylaxis, and antiviral drugs. Russian virologists continue to occupy leading positions in some priority areas of modern virology in vaccinology, environmental studies oz zoonotic viruses, studies of viral evolution in various ecosystems, and several other areas. A meaningful combination of theoretical approaches to studying the evolution of viruses with innovative methods for studying their molecular genetic properties and the creation of new generations of vaccines and antiviral drugs on this basis will significantly reduce the consequences of future pandemics or panzootics. The review presents the main stages in the formation and development of virology as a science in Russia with an emphasis on the most significant achievements of soviet and Russian virologists in the fight against viral infectious diseases.
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Cucchiara, Rita, and Matteo Fabbri. "Fine-grained Human Analysis under Occlusions and Perspective Constraints in Multimedia Surveillance." ACM Transactions on Multimedia Computing, Communications, and Applications 18, no. 1s (February 28, 2022): 1–23. http://dx.doi.org/10.1145/3476839.
Full textAbstract:
Human detection in the wild is a research topic of paramount importance in computer vision, and it is the starting step for designing intelligent systems oriented to human interaction that work in complete autonomy. To achieve this goal, computer vision and machine learning should aim at superhuman capabilities. In this work, we address the problem of fine-grained human analysis under occlusions and perspective constraints. More specifically, we discuss some issues and some possible solutions to effectively detect people using pose estimation methods and to detect humans under occlusions both in the two-dimensional (2D) image plane and in the 3D space exploiting single monocular cameras. Dealing with occlusion can be done at the joint level or pixel level: We discuss two different solutions, the former based on a supervised neural network architecture for detecting occluded joints and the latter based on a semi-supervised specialized GAN that exploits both appearance and human shape attributes to determine the missing parts of the visible shape. To deal with perspective constraints, we further discuss a neural approach based on a double architecture that learns to create an optimal neural representation, which is useful to reconstruct the 3D position of human keypoints starting with simple RGB images. All these approaches have a critical point in common: the need for large annotated datasets. To have large, fair, consistent, transparent, and ethical datasets, we propose the adoption of synthetic datasets as, for example, JTA and MOTSynth. In this article, we discuss the pros and cons of using synthetic datasets while tackling several human-centered AI issues with respect to European GDPR rules for privacy. We further explore and discuss an application in the field of risk assessment by space occupancy estimation during the COVID-19 pandemic called Inter-Homines.