Paul Steffens
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View article: Gapped commensurate antiferromagnetic response in a strongly underdoped model cuprate superconductor
Gapped commensurate antiferromagnetic response in a strongly underdoped model cuprate superconductor Open
It is a distinct possibility that spin fluctuations are the pairing interactions in a wide range of unconventional superconductors. In the case of the high-transition-temperature (high-$T_c$) cuprates, in which superconductivity emerges up…
View article: Spin excitations arising from anisotropic Dirac spinons in YCu$_3$(OD)$_6$Br$_2$[Br$_{0.33}$(OD)$_{0.67}$]
Spin excitations arising from anisotropic Dirac spinons in YCu$_3$(OD)$_6$Br$_2$[Br$_{0.33}$(OD)$_{0.67}$] Open
A Dirac quantum spin liquid hosts Dirac spinons, which are low-energy fractionalized neutral quasiparticles with spin 1/2 that obey the Dirac equation. Recent inelastic neutron scattering studies have revealed a cone spin continuum in YCu$…
View article: 28P Long-term survival and treatment (tx) patterns in patients (pts) with epidermal growth factor receptor (EGFR) mutation-positive (m) advanced NSCLC treated with first-line (1L) osimertinib (osi): German cohort of a global real-world (rw) observational study
28P Long-term survival and treatment (tx) patterns in patients (pts) with epidermal growth factor receptor (EGFR) mutation-positive (m) advanced NSCLC treated with first-line (1L) osimertinib (osi): German cohort of a global real-world (rw) observational study Open
Osi, a 3rd-generation, central nervous system-active, EGFR-TKI, is the preferred 1L tx for EGFRm advanced NSCLC. We report interim results from a German cohort of a global rw prospective, observational study of long-term survival and tx pa…
View article: Long term sales forecasts of innovations - an empirical study of the consumer electronic market
Long term sales forecasts of innovations - an empirical study of the consumer electronic market Open
Entrepreneurial action, whether undertaken by firms small or large, new or old, involves the ability to recognise and exploit opportunities. This is a risky activity. The consumer electronic industry (the focus of this study) is characteri…
View article: Marketing buzz: towards a framework for entrepreneurs
Marketing buzz: towards a framework for entrepreneurs Open
Word of mouth marketing, viral marketing, guerilla marketing are terms becoming popular in the marketing literature as marketing and promotional methods to increase the likelihood of a venture being successful in the marketplace. However, …
View article: Novice vs. habitual entrepreneurship: differences in motivations, actions and expectations
Novice vs. habitual entrepreneurship: differences in motivations, actions and expectations Open
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View article: The Comprehensive Australian Study of Entrepreneurial Emergence (CAUSEE) high potential nascent entrepreneurs: some preliminary findings
The Comprehensive Australian Study of Entrepreneurial Emergence (CAUSEE) high potential nascent entrepreneurs: some preliminary findings Open
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View article: Small firm performance: patterns of evolution in growth-profitability space
Small firm performance: patterns of evolution in growth-profitability space Open
The aim of this paper is to provide a better understanding of the evolution of small firm performance. We do so by studying performance changes on a two dimensional 'growth---profitability performance space'. It is well established that bo…
View article: Eyes wide shut: technology entrepreneurship, inertia and the impact of organizational field transparency
Eyes wide shut: technology entrepreneurship, inertia and the impact of organizational field transparency Open
Research has consistently linked organizational inertia to the failure of industry incumbents to prosper or even survive from periods of discontinuous change driven by technological entrepreneurship. Recent work has unbundled the structure…
View article: Do strategy choices matter for nascent firms? A study on effectuation and causation impacts on new ventures outcomes
Do strategy choices matter for nascent firms? A study on effectuation and causation impacts on new ventures outcomes Open
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View article: Venture creation and resource processes: using bricolage in sustainability ventures
Venture creation and resource processes: using bricolage in sustainability ventures Open
Principal Topic: Resource decisions are critical to the venture creation process, which has important subsequent impacts on venture creation and performance (Boeker, 1989). Most entrepreneurs however, suffer substantial resource constraint…
View article: Nascent venture performance: linking novelty of venture ideas and commitment of firm founders as predictors
Nascent venture performance: linking novelty of venture ideas and commitment of firm founders as predictors Open
The individual-opportunity nexus emphasizes that both the characteristics of individuals and venture ideas have roles in the entrepreneurial process (Shane and Venkataraman, 2000). Following upon this assertion the present study examined w…
View article: How do we reach them? Comparing random samples from mobile and landline phones
How do we reach them? Comparing random samples from mobile and landline phones Open
Quantitative studies of nascent entrepreneurs such as GEM and PSED are required to generate their samples by screening the adult population, usually by phone. Phone survey research has recently been challenged by shifting patterns of owner…
View article: Attractiveness of venture ideas: a conjoint study
Attractiveness of venture ideas: a conjoint study Open
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View article: Resource constraints in innovation: the role of bricolage in new venture creation and firm development
Resource constraints in innovation: the role of bricolage in new venture creation and firm development Open
The emerging theory of ‘bricolage’ as a resource behaviour represents an attempt to address the central entrepreneurship research problem of making systematic sense of entrepreneurs that sometimes manage to create significant new economic …
View article: Linking resource acquisition and development processes to resource-based advantage: bricolage and the resource-based view
Linking resource acquisition and development processes to resource-based advantage: bricolage and the resource-based view Open
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View article: How can entrepreneurial musicians use electronic social networks to diffuse their music
How can entrepreneurial musicians use electronic social networks to diffuse their music Open
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View article: Exchange renormalized crystal field excitation in a quantum Ising magnet KTmSe$_2$
Exchange renormalized crystal field excitation in a quantum Ising magnet KTmSe$_2$ Open
Rare-earth delafossite compounds, ARCh$_2$ (A = alkali or monovalent ion, R = rare earth, Ch = chalcogen), have been proposed for a range of novel quantum phenomena. Particularly, the Tm series, ATmCh$_2$, featuring Tm ions on a triangular…
View article: Altruism or self-interest in tomorrow's veterinarians? A metric conjoint experiment and cluster analysis
Altruism or self-interest in tomorrow's veterinarians? A metric conjoint experiment and cluster analysis Open
Introduction Altruism is considered a trait of veterinary and other health professionals, but the level of altruism in the veterinary profession is unknown. We designed a metric conjoint experiment to reveal other-orientation (an individua…
View article: Universality of the {\bf q}=1/2 Orbital Magnetism in the Pseudogap Phase of the High-$T_c$ superconductor $\rm YBa_{2}Cu_{3}O_{6+x}$
Universality of the {\bf q}=1/2 Orbital Magnetism in the Pseudogap Phase of the High-$T_c$ superconductor $\rm YBa_{2}Cu_{3}O_{6+x}$ Open
Several decades of debate have centered around the nature of the enigmatic pseudo-gap state in high temperature superconducting copper oxides. Recently, we reported polarized neutron diffraction measurements that suggested the existence of…
View article: Gradual emergence of superconductivity in underdoped LSCO
Gradual emergence of superconductivity in underdoped LSCO Open
We present triple-axis neutron scattering studies of low-energy magnetic fluctuations in strongly underdoped La$_{2-x}$Sr$_{x}$CuO$_{4}$ with $x=0.05$, $0.06$ and $0.07$, providing quantitative evidence for a direct competition between the…
View article: Psychological factors explaining Ukrainian refugee entrepreneurs’ venture idea novelty
Psychological factors explaining Ukrainian refugee entrepreneurs’ venture idea novelty Open
In this study we investigate the (relative) importance of four psychological factors previously identify as important for entrepreneurship in adversity. Specifically, we investigate the importance of personal initiative, individual resilie…
View article: Mesoscopic tunneling in strontium titanate
Mesoscopic tunneling in strontium titanate Open
Spatial correlation between atoms can generate a depletion in the energy dispersion of acoustic phonons. Two well known examples are rotons in superfluid helium and the Kohn anomaly in metals. Here we report on the observation of a large s…
View article: Hidden Magnetic Texture in the Pseudogap Phase of High-Tc $YBa_{2}Cu_{3}O_{6.6}$
Hidden Magnetic Texture in the Pseudogap Phase of High-Tc $YBa_{2}Cu_{3}O_{6.6}$ Open
Despite decades of intense researches, the enigmatic pseudo-gap (PG) phase of superconducting cuprates remains an unsolved mystery. In the last 15 years, various symmetry breakings in the PG state have been discovered, spanning an intra-un…
View article: Data for: Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
Data for: Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings Open
Data for: Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
View article: ACE Research Briefing Paper 013 : Global Entrepreneurship Monitor (GEM) - 2017/18 Australian National Report
ACE Research Briefing Paper 013 : Global Entrepreneurship Monitor (GEM) - 2017/18 Australian National Report Open
Most policymakers and academics agree that entrepreneurship is critical to the development and wellbeing of society. Entrepreneurs create jobs. They drive and shape innovation, thereby speeding up structural changes in the economy, and by …