Elements of Infrastructure: Factors Driving International Entrepreneurship

This article focuses on born globals (Knight and Cavusgil 1996) and interfirm resources to explain international entrepreneurship. The theory posed here challenges the traditional image of international business as a long, gradual process not occurring until later in the life cycle, and applying only to large multinational corporations (MNCs). Increasingly, new ventures must expand their operations internationally early in their history in order to be competitive (Oviatt and McDougall 1994), and require infrastructure (Van de Ven 1993), or interfirm resources, for success. Specifically, firms may rely on three factors to expand internationally: cost factors, unique global resources, and networks

Doing Well and Happy About It? Explaining Variance in Entrepreneurs’ Stated Satisfaction with Performance

The importance of performance measurement is largely undisputed. There is debate, however, regarding the equivalency of objective and subjective performance measures. This debate has not considered a frequently used subjective measure, satisfaction with performance, to be an important measure independent of its equivalency with objective measures. Using a sample of 368 manufacturing firms, this study found that objective measures explained only a modest amount of variance in satisfaction with performance and that other variables added significantly to the explained variance.These factors included perceived environmental hostility, vulnerability, perceived competitive advantage, and commitment

Combined EEG and eye tracking in sports skills training and performance analysis

The use of mobile EEG brainwave monitoring and eye-tracking recorded synchronously during the training of sports skills offers significant opportunities but creates challenges. Opportunities: ♦ Measuring neurocognitive activity and visual focus in real time which can be used to provide immediate feedback to the coach, in ‘real world’ settings, for optimising training protocols for the individual athlete. ♦ Use of sound output (‘sonification’) in proportion to EEG regions of interest as a neurofeedback mechanism for athlete self-training. ♦ Application of visualisation protocols and ‘EEG-driven’ PC games where game feedback based on state of mind is used to optimise mental state prior to performance. ♦ Examining the relationship between eye movement and neuro activity (e.g. saccades and gamma waves) and in athlete coaching interventions such as sports visual scanning strategies, Eye Movement Desensitisation & Reprocessing (EMDR) therapy, focussed relaxation, etc. Challenges: ♦ The recording of EEG during gross motor behaviour is subject to non-brain artefacts in the raw (time-domain) EEG, due to the much larger (than EEG) electrical voltages arising from muscle and eye movements. Practical approaches and signal processing (frequency domain spectrum) techniques to address these problems will be discussed. ♦ The synchronisation of data recorded on different types of equipment (e.g. EEG, eyetracker, video, sound, EMG, etc.) with different ‘clocks’ and diverse data formats is difficult – both in terms of time-stamping the original recordings across all the systems and playing them back synchronously for subsequent performance analysis. Progress on creating real-time data export methods which allow synchronous data recording and playback will be reported. Examples of studies carried out in archery, golf, motorsport, football and skiing will be discussed, with a focus on archery where: ♦ Measurements were taken from intermediate, county level, near elite and elite archers. ♦ Archery was chosen to demonstrate the real-time and in-situ quantification of neural activity compared with target-based measures of performance that archery provides, over a range of time-spans and skills. ♦ Results demonstrate that there are significant and measurable changes in EEG patterns during a shot with evidence suggesting that the patterns vary as a function of skill level, but not simply as a function of score. Significance of each of these studies for goal-directed learning and performance enhancement are discussed

Direct angiotensin AT2 receptor stimulation using a novel AT2 receptor agonist, compound 21, evokes neuroprotection in conscious hypertensive rats

Background: In this study, the neuroprotective effect of a novel nonpeptide AT2R agonist, C21, was examined in a conscious model of stroke to verify a class effect of AT2R agonists as neuroprotective agents. Methods and Results: Spontaneously hypertensive rats (SHR) were pre-treated for 5 days prior to stroke with C21 alone or in combination with the AT2R antagonist PD123319. In a separate series of experiments C21 was administered in a series of 4 doses commencing 6 hours after stroke. A focal reperfusion model of ischemia was induced in conscious SHR by administering endothelin-1 to the middle cerebral artery (MCA). Motor coordination was assessed at 1 and 3 days after stroke and post mortem analyses of infarct volumes, microglia activation and neuronal survival were performed at 72 hours post MCA occlusion. When given prior to stroke, C21 dose dependently decreased infarct volume, which is consistent with the behavioural findings illustrating an improvement in motor deficit. During the pre-treatment protocol C21 was shown to enhance microglia activation, which are likely to be evoking protection by releasing brain derived neurotrophic factor. When drug administration was delayed until 6 hours after stroke, C21 still reduced brain injury. Conclusion: These results indicate that centrally administered C21 confers neuroprotection against stroke damage. This benefit is likely to involve various mechanisms, including microglial activation of endogenous repair and enhanced cerebroperfusion. Thus, we have confirmed the neuroprotective effect of AT2R stimulation using a nonpeptide compound which highlights the clinical potential of the AT2R agonists for future development

Strategic Flexibility and SMEs: The Role of Information Technology for Managing Internal and External Relations

The purpose of the current study was to assess the impact of information technology on strategic flexibility for small- and medium-sized enterprises (SMEs). Results of the study show that under conditions of low environmental dynamism, IT capabilities are associated with greater reactive strategic flexibility. Specifically, IT capabilities enabling the management of internal activities was significant. Under conditions of high environmental dynamism, IT capabilities are associated with greater proactive strategic flexibility. Specifically, IT capabilities enabling the management of competitor information was significant. Managerial as well as future research implications are discussed

Small Business Internet Use and Strategic Flexibility

Research on SME Internet use has focused almost exclusively on factors leading to the adoption of Internet technologies. In this study, we focus on the potentially valuable connection between Internet use and strategic flexibility. Specifically, we propose that Internet use for communications will promote greater strategic flexibility for the small firm, but only in a dynamic environment. The results, based on a sample of 160 small Midwest companies, largely support this hypothesis. Environmental dynamism was found to moderate the relationship between Internet use for communications and strategic flexibility. Use of the Internet for communications was found to be positively and significantly related to strategic flexibility in a dynamic environment. As expected, dynamism did not moderate the relationship between Internet use for transactions and strategic flexibility. These findings hold implications for future research and for managers of small firms attempting to effectively leverage the Internet for competitive advantage

Data mining of portable EEG brain wave signals for sports performance analysis: An Archery case study

BACKGROUND ♦ Achievement in high performance sport requires an appropriate ‘state of mind’, which is trained alongside the physical skills. ♦ However, quantification of mental state during coaching is often difficult. ♦ With the advent of a new generation of portable compact EEGs and wireless eye tracking devices, one can measure the neurocognitive activity of an athlete’s brain and their visual focus simultaneously in ecologically representative training scenarios. AIM/OBJECTIVES ♦ We present evidence suggesting that the ‘state of mind’ of an athlete can be measured and compared with target-based performance measures. METHOD ♦ Measurements were taken from intermediate, county level, near elite and elite archers investigating: o quantification of EEG brain wave signals comparing archers of different abilities o correlation of EEG data across shots as a function of marksmanship o prototyping real-time EEG data feedback using sound during training o synchronous EEG and eye tracking ♦ Archery was chosen to demonstrate the real-time and in-situ quantification of neural activity compared with target-based measures of performance that archery provides, over a range of timespans and skills. ♦ Mental performance was explored during stages of a shot, across shots within a set, or across different sessions. RESULTS ♦ Results demonstrate that there are significant and measurable changes in EEG patterns during a shot with evidence suggesting that the patterns vary as a function of skill level, but not simply as a function of score. ♦ Significance of each of these outcomes for goal-directed learning and performance enhancement are discussed. DISCUSSION ♦ This may provide coaches and athletes with real-time EEG feedback to identify differing mental skill execution compared to a baseline or aspirational measurement from another athlete. ♦ Future work includes injury recovery/prevention and welfare, rehabilitation, and work with mobility-challenged non-athletes

Linear Response Calculations of Spin Fluctuations

A variational formulation of the time--dependent linear response based on the Sternheimer method is developed in order to make practical ab initio calculations of dynamical spin susceptibilities of solids. Using gradient density functional and a muffin-tin-orbital representation, the efficiency of the approach is demonstrated by applications to selected magnetic and strongly paramagnetic metals. The results are found to be consistent with experiment and are compared with previous theoretical calculations.Comment: 11 pages, RevTex; 3 Figures, postscript, high-resolution printing (~1200dpi) is desire

Lattice Discretization in Quantum Scattering

The utility of lattice discretization technique is demonstrated for solving nonrelativistic quantum scattering problems and specially for the treatment of ultraviolet divergences in these problems with some potentials singular at the origin in two and three space dimensions. This shows that lattice discretization technique could be a useful tool for the numerical solution of scattering problems in general. The approach is illustrated in the case of the Dirac delta function potential.Comment: 9 page