筛选
科学数据
统计数据
共检索到13条 ,权限内显示50条;
Data from: Classification of cryptocurrency coins and tokens by the dynamics of their market capitalisations
- 负责人：
- DOI：
- doi:10.5061/dryad.t577f19
- 摘要：
- of the model, the theoretical predictions for the power-law exponents of coin and token distributions are in remarkable agreement with the empirical estimations
468-480 Portswood Road, Southampton (SOU1643). Archaeological Evaluation (OASIS ID: thamesva1-169771)
- 负责人：
- Thames Valley Archaeological Services Ltd;;Southampton City Council
- 关键词：
- COIN CERAMIC EVALUATION Targeted Trenches Sample Trenches SHERD Animal Bone JETTON Archaeology Excavations (Archaeology)--England
- DOI：
- doi:10.5284/1047189
- 摘要：
- An evaluation was carried out prior to re-development of the site for residential flats and a small retail unit. Much late post medieval made ground and several foundations were revealed. Colluvial and/or alluvial deposits found probably relate to Furzewell's Stream which was recorded on a 1658 map. Finds included pottery, animal bone, ceramic building material and stone. The only finds retained were a copper alloy Islamic jetton and a pipe clay quill holder.
Data from: Fluctuating food resources influence developmental plasticity in wild boar
- 负责人：
- DOI：
- doi:10.5061/dryad.8hf1c
- 摘要：
- by displaying the ‘coin-flipping’ tactic. Wild boar (Sus scrofa scrofa) females have been reported to adopt this tactic. However, whether the magnitude
Town and Country in Roman Essex: Settlement Hierarchies in Roman Essex
- 负责人：
- English Heritage;;Archaeology South-East
- DOI：
- doi:10.5284/1011886
- 摘要：
- The Town and Country in Roman Essex project is a large scale regional study based on correspondence analysis of finds assemblages, including coi
Data from: Three-dimensional preservation of cellular and subcellular structures reveal 1.6 billion-year-old probable crown-group red algae
- 负责人：
- DOI：
- doi:10.5061/dryad.gh221
- 摘要：
- ., has coin-like cells reminiscent of those in large sulfur-oxidizing bacteria, but much more recalcitrant than the liquid-vacuole-filled cells of the la
Data from: Multifunctionality of an arthropod predator’s body colouration
- 负责人：
- Chen-Pan Liao
- DOI：
- doi:10.5061/dryad.33s566q
- 摘要：
- they interact. The Australasian coin spider, Herrenia multipuncta, displays unconventional body colouration, with orange, black and grey regions across its body
Data from: Adaptation in a variable environment: phenotypic plasticity and bet-hedging during egg diapause and hatching in an annual killifish
- 负责人：
- DOI：
- doi:10.5061/dryad.rf2qk
- 摘要：
- in ephemeral pools that completely dry each season through the production of eggs that can remain in developmental arrest, or diapause, buried in the soil, unt
Data from: A case for a joint strategy of diversified bet hedging and plasticity in the pea aphid wing polyphenism
- 负责人：
- DOI：
- doi:10.5061/dryad.2bb5q
- 摘要：
- Phenotypic plasticity and diversified bet hedging are strategies for coping with variable environments. Plasticity is favoured when an organism can predict future conditions using environmental cues, while bet hedging is favoured when predictive cues are not available. Theoretical analyses suggest that many organisms should use a mixture of both strategies, because environments often present both scenarios. Here, we examine if the pea aphid wing polyphenism, a well-known case of plasticity, is potentially a mixture of plasticity and bet hedging. In this polyphenism, asexual females produce more winged offspring in crowded conditions, and wingless offspring in uncrowded conditions. We find that pea aphids use plasticity to respond to crowding and we find considerable genetic variation for this response. We further show that individual aphids produce both winged and wingless offspring, consistent with the variability expected in a bet hedging trait. We conclude that the pea aphid wing polyphenism system is probably a mixture of plasticity and bet hedging. Our study adds to a limited list of empirical studies examining mixed strategy usage, and suggests that mixed strategies may be common in dispersal traits.
Anglo-Saxon Stafford. Archaeological Investigations 1954-2004. Field Reports On-line
- 负责人：
- Carver, Martin;;English Heritage;;Spall, Cecily
- 关键词：
- COIN ANIMAL BONE Archaeology CESS PIT CHAPEL CHARCOAL COFFIN STONE DENDROCHRONOLOGY DOMESTIC HUMAN REMAINS
- DOI：
- doi:10.5284/1000117
- 摘要：
- This archive contains the Field Reports for the Stafford campaign (primarily , comprising the edited surviving evidence for the evaluation and the major excavations together with studies of the artefacts, bones and plant remains. The edited Field Reports include new analyses and reinterpretation by M Carver and take into account work undertaken since 1985, particularly by Debbie Ford (on pottery) and John Darlington (excavations at Stafford castle and town). However, the research undertaken in 1985-90 on the artefacts, animal bone, human bone and plant remains has not been extensively revised or updated, apart from new specialist reports on objects from the "blacksmiths' pit" (F234 in Int 32): by Steve Ashby on the Medieval comb and Cecily Spall on the metalwork. The Stafford results are considered in their national and international context in the Research Report, the monograph Birth of a Borough by Martin Carver (Boydell Press), which may be regarded as the synthesis that accompanies and draws on this archive.
Land to the rear of 18 Russell Close, Powick, Worcestershire. Archaeological Excavation
- 负责人：
- Cotswold Archaeology
- 关键词：
- COIN Cremated Carbonised RADIOCARBON DATING CHARCOAL FLOTATION CERAMIC EXCAVATION CREMATION BURNT FLINT
- DOI：
- doi:10.5284/1044407
- 摘要：
- An archaeological excavation was undertaken by Cotswold Archaeology (CA) in July andAugust 2014 at land to the rear of 18 Russell Close, Powick, Worcestershire (centred at SO81917 50938) at the request of Bovis Homes. The site covered about 0.25ha of the 2.8hahousing development area, lying at approximately 55m AOD on gently sloping land. Theexcavation targeted an area of Middle Iron Age activity identified in the preceding evaluation.The excavation revealed a small, sub-rectangular enclosure of Middle Iron Age date. Thefirst phase of enclosure was defined by a palisade trench, with a principal entrance to thesouth-east. There seems to have been an episode of palisade repair before it was replacedby a ditch, mostly cut to a shallower depth. There was also an outer enclosure ditch on twosides mirroring the course of the palisade. The interior was occupied by a scatter of smallpits, postholes and gullies that probably represented structures, but it was not clear that thiswas a settlement and it may rather have been an enclosure for livestock.Pottery was sparse and there were few other finds or economic and environmentalindicators. A deposit of charcoal and cremated bone from a pit near the principal entrancerepresents an unusual record of Middle Iron Age cremation, although the pyre site appearsto have lain elsewhere. A major proportion of the pottery came from two largely complete butfragmentary vessels, one from a ditch at the southern entrance, and the other from colluvialdeposits outside the enclosure.
