Results 141 to 150 of about 1,219 (252)

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Fortschritte in strategischer Netzwerkbildung : Präferenzen, Zentralität und Externalitäten

open access: yes, 2009
Buechel B. Advances in strategic network formation : preferences, centrality, and externalities. Bielefeld (Germany): Bielefeld University; 2009.The importance of social and economic networks has meanwhile been widely acknowledged throughout social ...
Buechel, Berno
core  

Challenges and Opportunities in Multi‐Method Integrated Geophysical Prospection of Buried Building Remains at the Sanctuary of Olympia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Ancient Olympia was one of the most important sanctuaries and the venue for the Olympic Games in Greek and Roman times. Its remains are located in the Olympia Terrace (Peloponnese, Greece) at the present‐day confluence of the rivers Alpheios and Kladeos at the base of Mount Kronos.
Sarah Bäumler   +10 more
wiley   +1 more source

Farmer's decisions and landscape change : an actor-based approach for land-use research

open access: yes, 2010
This dissertation has two objectives. The first objective is to link conceptually individual decisions and land-use/cover change (LUCC) patterns in rural regions. The second objective is to use these concepts to explore the influence of policy on LUCC as
Valbuena, D.F.
core  

When AI outputs become documents: Documentation activity in human–AI dialogue

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Large language models (LLMs) generate texts that increasingly circulate as documents in knowledge infrastructures, yet their documentary status remains theoretically underdetermined. Unlike traditional documents, LLM outputs lack identifiable authorship, stable provenance, or testimonial grounding.
Sascha Donner
wiley   +1 more source

Risk‐aware safe reinforcement learning for control of stochastic linear systems

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper presents a risk‐aware safe reinforcement learning (RL) control design for stochastic discrete‐time linear systems. Rather than using a safety certifier to myopically intervene with the RL controller, a risk‐informed safe controller is also learned besides the RL controller, and the RL and safe controllers are combined together ...
Babak Esmaeili   +2 more
wiley   +1 more source

A relational approach to knowledge spillovers in biotech. Network structures as drivers of inter-organizational citation patterns [PDF]

open access: yes
In this paper, we analyze the geography of knowledge spillovers in biotech by investigating the way in which knowledge ties are organized. Following a relational account on knowledge spillovers, we depict knowledge networks as complex evolving structures
Dieter Kogler   +2 more
core  

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