Results 91 to 100 of about 155,326 (337)

Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%

open access: yesAdvanced Robotics Research, EarlyView.
Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
wiley   +1 more source

Orchestina pavesii (Simon, 1873), an oonopid spider new to Slovakia (Araneae: Oonopidae) [PDF]

open access: yes, 2013
Representatives of Oonopidae are tiny spiders, usually of a pale colour, with 6 oval eyes. Systematically, they belong to Dysderoidea, which include about 120 genera (CODDINGTON & LEVI 1991), but Oonopidae, alone, include 51 genera and more than 70 ...
Gajdoš, Peter, Pekár, Stanislav
core  

Island time and the interplay between ecology and evolution in species diversification. [PDF]

open access: yes, 2015
Research on the dynamics of biodiversity has progressed tremendously over recent years, although in two separate directions - ecological, to determine change over space at a given time, and evolutionary, to understand change over time.
Gillespie, Rosemary G
core   +1 more source

RONIN/HCF1‐TFEB Axis Protects Against D‐Galactose‐Induced Cochlear Hair Cell Senescence Through Autophagy Activation

open access: yesAdvanced Science, EarlyView.
D‐galactose (D‐gal) induced inner ear hair cell senescence by inhibiting TFEB transcription. RONIN/HCF1 promotes TFEB transcription to prevent cochlear HCs from D‐gal‐induced senescence through autophagy activation. Abstract Age‐related hearing loss is characterized by senescent inner ear hair cells (HCs) and reduced autophagy.
Yongjie Wei   +18 more
wiley   +1 more source

Learning in Spiders [PDF]

open access: yesAmerican Zoologist, 1969
After the spider, Zygiella x-notata Cl. has been enticed to leave the retreat and catch a fly in a web turned upside-down, it takes a relatively long time to return to the retreat. The return-time is divided into periods of active searching and motionlessness.
openaire   +3 more sources

Chromosome‐Level Genome Assembly of the Leafcutter Bee Megachile rotundata Reveals Its Ecological Adaptation and Pollination Biology

open access: yesAdvanced Science, EarlyView.
The genome of Megachile rotundata, an extensively managed solitary pollination bee species, has been sequenced, covering 280.68 Mb and predicting 10 701 genes. The study reveals significant expansions of the Toll gene family and their abundant expression in diapause prepupae, highlighting enhanced immune responses during diapause. This genome serves as
Rangjun Shi   +8 more
wiley   +1 more source

Abelian Spiders [PDF]

open access: yes, 2015
If G is a finite graph, then the largest eigenvalue L of the adjacency matrix of G is a totally real algebraic integer (L is the Perron-Frobenius eigenvalue of G). We say that G is abelian if the field generated by L^2 is abelian.
Calegari, Frank, Guo, Zoey
core  

Disturbance‐Aware On‐Chip Training with Mitigation Schemes for Massively Parallel Computing in Analog Deep Learning Accelerator

open access: yesAdvanced Science, EarlyView.
This study proposes novel operational schemes to solve the write disturbance issues in oxide‐semiconductor and capacitor‐based synaptic devices (6T1C devices). These schemes effectively neutralize disturbances, enabling high‐performance on‐chip training of convolutional neural networks and reducing capacitor size over 100 times.
Jaehyeon Kang   +6 more
wiley   +1 more source

Fish predation by semi-aquatic spiders: a global pattern.

open access: yesPLoS ONE, 2014
More than 80 incidences of fish predation by semi-aquatic spiders--observed at the fringes of shallow freshwater streams, rivers, lakes, ponds, swamps, and fens--are reviewed.
Martin Nyffeler, Bradley J Pusey
doaj   +1 more source

First record of Aulonia kratochvili (Araneae, Lycosidae) from Europe [PDF]

open access: yes, 2013
The fauna of wolf spiders is rather well-known in certain parts of the Balkan Peninsula, in others less so. While extensive collecting has been undertaken in Bulgaria (summarized in DEL TSHEV & BLAGOEV 1995), other parts, like Greece, still await to be ...
Kronestedt, Torbjörn
core  

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