Results 81 to 90 of about 140,152 (258)
A Two Degree of Freedom Approach for Discrete‐Time Sliding Mode Control
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This paper proposes a new two degree of freedom (2‐DOF) framework for discrete‐time sliding mode control (DSMC) that decouples the disturbed evolution from its nominal counterpart. The novel nominal/disturbed subsystem separation for DSMC can be used to define multiple closed‐loop specifications. The nominal regulation (or tracking) controller
Tito L. M. Santos, Ary M. Batista
wiley +1 more source
Why theory matters for causal inference? Rethinking endogeneity in entrepreneurship research
Strategic Entrepreneurship Journal, EarlyView.Abstract Endogeneity in entrepreneurship research is often treated as a statistical complication addressable through advanced econometric tools. This commentary argues that such an approach overlooks a deeper issue: endogeneity is conceptual before it is statistical.
Daniel Tzabbar
wiley +1 more source
Systems Research and Behavioral Science, EarlyView.ABSTRACT This paper draws on over five decades of experience in educating and developing systems thinking practitioners at the Open University (OU) UK to explore the opportunities and challenges in the professionalisation of systems thinking in practice (STiP).
Ray Ison
wiley +1 more source
Teaching Statistics, EarlyView.Abstract Statistical hypothesis testing (SHT) is widely employed across numerous scientific disciplines, and a clear understanding of its underlying logic is essential for the broader scientific community. Here, drawing upon both epistemological and statistical perspectives, we aim to clarify—primarily for educational purposes—the logical relationship ...
Maria Cristina Amoretti +1 more
wiley +1 more source
Pittman‐Robertson and Dingell‐Johnson: A Congressional endorsement of state supremacy over wildlife?
Wildlife Society Bulletin, EarlyView.Abstract The Pittman–Robertson Act of 1937 (PR) and the Dingell–Johnson Act of 1950 (DJ) provide states with substantial capacity to manage fish and wildlife by directing revenue from federal excise taxes on hunting and fishing equipment to states. The precise scope of state and federal wildlife management authority has been a topic of debate among ...
J. Vaughan Branch +2 more
wiley +1 more source
100 Years of Element Zero: Andreas von Antropoff's Neutronium and the Naming of the Neutron
Zeitschrift für anorganische und allgemeine Chemie, EarlyView.Congratulations to the 100th Anniversary of the publication of Andreas von Antropoff's element 0, “–“! This contribution provides a historical account of the concept of element zero and the naming of the neutron. The concept of element zero is 100 years old, having a first documented appearance in a 1926 publication by Andreas von Antropoff, while the ...
Holger Kohlmann
wiley +1 more source
Zoo Biology, EarlyView.Retrospective analysis of chelonian eggs collected from gravid females admitted to a North Carolina wildlife clinic (2010–2023). A total of 2,453 eggs were harvested from live, euthanized, and deceased patients and incubated under standardized conditions, resulting in 38.9% hatching success.
Caroline C. Diehl +6 more
wiley +1 more source
X‐ray fluorescence microscopy exposure estimates using a single excitation energy
Journal of Synchrotron Radiation, EarlyView.We present calculations on the number of illuminating photons per pixel required for elemental detection using X‐ray fluorescence, even with far‐from‐threshold excitation.Scanning fluorescence X‐ray microscopy is widely used for quantitative mapping of elemental concentrations, including in studies of essential but low‐concentration metals in cells ...
Benjamin Roter +3 more
wiley +1 more source
Value in the ‘valley of the shadow of death’—When the user is no longer the value arbiter
Australian Journal of Public Administration, EarlyView.Abstract The Public Service Logic (PSL) user‐centric perspective on value creation has been one of its main critiques. Scholars argue that for some real‐world applications, such as emergency services, where users cannot engage with service offerings, the PSL must consider the roles of other service actors beyond just facilitators.
Higor Leite, Stephen Osborne
wiley +1 more source