Results 91 to 100 of about 15,148 (305)

Institutional Ownership and Return Predictability Across Economically Unrelated Stocks

open access: yes, 2015
We document strong weekly lead-lag return predictability across stocks from different industries with no customer-supplier linkages (economically unrelated stocks).
Gao, George P.   +4 more
core   +1 more source

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

open access: yesAdvanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings   +6 more
wiley   +1 more source

Is the Polish Stock Market Weak Form Efficient?

open access: yesThe International Journal of Banking and Finance, 2006
This paper explores the definition of predictability of Warsaw Stock Index returns by using measures elaborated in Shannon-Mazur’s cybernetic information theory, potentially a new approach to understand capital market informational efficiency. The main
Pijanowski Slawomir
doaj  

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

open access: yesAdvanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin   +3 more
wiley   +1 more source

Investor sentiment and stock return predictability: evidence from global sentiment indices

open access: yesCogent Economics & Finance
In international finance, a key question concerns whether investor sentiment can predict stock returns. This study constructs three novel sentiment indices: the Emerging Market Sentiment Index (EMSI), the Developed Market Sentiment Index (DMSI), and the ...
Kishan Kumar   +2 more
doaj   +1 more source

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

Are bitcoin returns predictable? [Conference Object]

open access: yes, 2018
Bitcoin is the most radical of the cryptocurrencies which are becoming popular nowadays. The advantage of the cryptocurrencies is that they are decentralized systems so do not need central banks. The purpose of this study is to determine if there is a volatility in the returns of Bitcoin and if so, whether it is predictable.
Anavatan, Aygül, Yalçın Kayacan, Eda
openaire   +2 more sources

Multi‐Omics Profiling Reveals Immunomodulatory and Pro‐Regenerative Effects of a Graphene Oxide–Collagen Scaffold in Massive Rotator Cuff Tears

open access: yesAdvanced Science, EarlyView.
A graphene oxide/collagen scaffold is developed for chronic massive rotator cuff tear repair. The scaffold improves compressive stability, supports reparative mesenchymal differentiation, and modulates the immune microenvironment. In chronic MRCT models, it reduces muscle degeneration, enhances tendon–bone regeneration, and improves functional recovery,
Renwen Wan   +24 more
wiley   +1 more source

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