The phenomenon of lithic miniaturization during the Late Pleistocene at times coincided with increased artifact standardization and cutting edge efficiency-likely reflecting the use of small, sharp artifacts as interchangeable inserts for composite cutting tools and hunting weapons. During Marine Isotope Stage 2, Upper Paleolithic toolmakers in northern East Asia specifically used pressure techniques to make small, highly standardized lithic artifacts called microblades. However, little is currently known about how microblades affected the cutting edge efficiency of the toolkits they were a part of. We applied three methods of analyzing cutting edge efficiency to two Upper Paleolithic assemblages recently excavated from Tolbor-17, Mongolia, that document the periods before and after the introduction of microblade technology to the Tolbor Valley. A model incorporating allometric relationships between blank cutting edge length and mass suggests no difference in efficiency between the two periods, while two more conventional approaches both indicate a significant increase. The potential for improved cutting edge efficiency is only observed when the microblade sample is artificially inflated via simulation. Our results highlight challenges related to detecting and interpreting archaeological differences in cutting edge efficiency at the assemblage level.

Ganzheng Jingyi Yuebian(Essence Compendium of Cold Symptoms) is collected in the Library of Anhui University of Traditional Chinese Medicine,which is not included in the Zhongguo Zhongyi Guji Zongmu (Catalogue of Ancient Chinese Medicine Books). After comparing with the current Xitang Ganzheng Volume of Yizong jirenbian, it is found that Ganzheng Jingyi Yuebian inherits the academic thought of Xitang Ganzheng with special emphasis on Yangming, taking care of the stomach and the jin, and comprehensively referring to the pulse, symptoms and tongue images. In the clinical treatment of diseases, Ganzheng Jingyi Yuebian comprehensively considered constitution and followed the law of time. it has also carried out rich expansion in attaching importance to the application of meridian transmission and emphasizing the leading ideology of healthy qi.In terms of the style and content of the compilation, on the basis of simplifying some of the text discussions and supplementary notes in Xitang Ganzheng,Ganzheng Jingyi Yuebian added the classification, as well as 15 diseases, 14 statements, memos, experience, Feng Shinong\'s verification and reflection, etc, so as to make its category clearer and content more detailed.
《感症精义约编》是安徽中医药大学图书馆馆藏书，未载于《中国中医古籍总目》。经与现行的《医宗己任编·西塘感症》比较研究发现，《感症精义约编》继承了《西塘感症》尤重阳明中土、顾护胃中津液、详脉症参舌象的学术思想，临证结合体质强弱、遵循因时制宜，又在重视传经理论应用、强调正气主导思想方面进行了丰富拓展。在编写体例和内容上，《感症精义约编》在精简《西塘感症》中部分正文论述和补注的基础上，增加了感症类病、遗病等分类及15种病证、14个论述、备忘、心法、冯师农的验证反思等内容，使类目更加清晰，内容更加翔实。.

Chronological frameworks based on artefact typologies are essential for interpreting the archaeological record, but they inadvertently treat transitions between phases as abrupt events and disregard the temporality of transformation processes within and between individual phases. This study presents an absolute chronological investigation of a dynamic material culture from Early Iron Age urnfields in Denmark. The chronological framework of Early Iron Age in Southern Scandinavia is largely unconstrained by absolute dating, primarily due to it coinciding with the so-called \'Hallstatt calibration plateau\' (c.750 to 400 cal BC), and it is difficult to correlate it with Central European chronologies due to a lack of imported artefacts. This study applies recent methodological advances in radiocarbon dating and Bayesian chronological modelling, specifically a statistical model for wood-age offsets in cremated bone and presents the first large-scale radiocarbon investigation of regional material culture from Early Iron Age in Southern Jutland, Denmark. Dated material is primarily cremated bone from 111 cremation burials from three urnfields. The study presents absolute date ranges for 16 types of pottery and 15 types of metalwork, which include most of the recognised metalwork types from the period. This provides new insights into gradual change in material culture, when certain artefact types were in production and primary use, how quickly types were taken up and later abandoned, and distinguishing periods of faster and slower change. The study also provides the first absolute chronology for the period, enabling correlation with chronologies from other regions. Urnfields were introduced at the Bronze-Iron Age transformation, which is often assumed to have occurred c.530-500 BC. We demonstrate that this transformation took place in the 7th century BC, however, which revives the discussion of whether the final Bronze Age period VI should be interpreted as a transitional phase to the Iron Age.

暂无摘要。

暂无摘要。

The origin of biological rhythms goes back to the very beginning of life. They are observed in the animal and plant world at all levels of organization, from cells to ecosystems. As early as the 18th century, plant scientists were the first to explain the relationship between flowering cycles and environmental cycles, emphasizing the importance of daily light-dark cycles and the seasons. Our temporal structure is controlled by external and internal rhythmic signals. Light is the main synchronizer of the circadian system, as daily exposure to light entrains our clock over 24 hours, the endogenous period of the circadian system being close to, but not exactly, 24 hours. In 1960, a seminal scientific meeting, the Cold Spring Harbor Symposium on Biological Rhythms, brought together all the biological rhythms scientists of the time, a number of whom are considered the founders of modern chronobiology. All aspects of biological rhythms were addressed, from the properties of circadian rhythms to their practical and ecological aspects. Birth of chronobiology dates from this period, with the definition of its vocabulary and specificities in metabolism, photoperiodism, animal physiology, etc. At around the same time, and right up to the present day, research has focused on melatonin, the circadian neurohormone of the pineal gland, with data on its pattern, metabolism, control by light and clinical applications. However, light has a double face, as it has positive effects as a circadian clock entraining agent, but also deleterious effects, as it can lead to chronodisruption when exposed chronically at night, which can increase the risk of cancer and other diseases. Finally, research over the past few decades has unraveled the anatomical location of circadian clocks and their cellular and molecular mechanisms. This recent research has in turn allowed us to explain how circadian rhythms control physiology and health.

Ancient Greek and Latin medical authors considered a flight into solitude a compelling sign of mental disturbance, frequently described as misanthropia, a word fraught with meaning beyond the medical discourse. The fictionalised character Timon of Athens, the quintessential misanthrope, can shed light on ancient cultural concepts of self-imposed isolation from human contact. To cope with the sense of unease this deviant behaviour induced, misanthropia was explained as \'madness\', ridiculed in various genres of humour, morally condemned in philosophy, and ultimately demonized in Christian cosmology. These various attempts at containment echo in the medical works of the age, making it impossible to comprehend the concept of misanthropia in ancient medicine without taking full account of the cultural context.

The cell doctrine-the theory of ventricular localization of the mental faculties-includes Galen\'s idea of a locking or valve mechanism between the middle and the rear ventricle. The anatomical substrate was the vermiform epiphysis, known today as the vermis cerebelli. This entity played a significant role in brain physiology even though its appearance, texture, and location changed over time. This article tells the story of the \"worm\'s\" transformation from Galen to Vesalius and beyond. Until the time of Albertus Magnus (c. 1200-1280 ce), the worm corresponded to the vermis cerebelli. From the beginning of the fourteenth century, under the influence of Mondino\'s Anothomia, the worm referred to the choroid plexus in the anterior ventricles; its Galenic heritage was abandoned. Contemporaneous illustrations confirm this anterograde movement. The contributions of post-Galenic natural philosophers and pre-Vesalian anatomists to this development are discussed. Today, the worm can serve as an example for different viewpoints and often deadlocked doctrines (religious, philosophic, scientific). In tracing beliefs about the worm from the Greeks to the Arabs and back to the Latin West, this article follows the history of neuroanatomy in the Middle Ages and the Renaissance.

暂无摘要。

The \"Hypogeum of the Garlands\" is a sepulchral site, recently found in Grottaferrata (Lazio, Italy), dating back to the first-second century AD. Two sarcophagi were discovered inside, hosting the human remains of Aebutia Quarta, a rich Roman woman, and her son Carvilius Gemellus. While the body of Carvilius is exceptionally well-preserved, following its embalming and perfect sealing of the sarcophagus, in the case of Aebutia only the bones were preserved because of the sarcophagus\'s seal breaking down, although she was covered with perfectly preserved flower garlands. Embalming of the body was a rare ritual in the Imperial Roman times when corpses were more often cremated. The remains of Aebutia showed possible traces of heating. Burned bones from a third individual were discovered on the chamber\'s floor and preliminary anthropological survey showed that this individual was a male of 40-50 years old. Here, a combination of spectroscopic techniques, including non-destructive inelastic neutron scattering and Raman spectroscopy, and minimally destructive Fourier transform infrared spectroscopy, were applied to the analysis of these bone samples to give information about ancient Roman funerary practices. The temperature and burning conditions were thus determined, showing that Aebutia Quarta was exposed to mild temperatures (200 °C) only in the upper part of the body, while the third individual was likely cremated as its bones were exposed to temperatures up to 900 °C in quasi-anaerobic conditions.