Do rewards from retailers such as free products and recognition in the form of status badges1 influence the recipient’s behavior? We present a novel application of natural language processing to detect differences in consumer behavior due to such rewards. Specifically, we investigate the “Enrollment” effect, i.e. whether receiving products for free affect how consumer reviews are written. Using...

Regulation via interspecific communication is an important for the maintenance of many mutualisms. However, mechanisms underlying the evolution of partner communication are poorly understood for many mutualisms. Here we show, in an ant-lycaenid butterfly mutualism, that attendant ants selectively learn to recognize and interact cooperatively with a partner. Workers of the ant Pristomyrmex punct...

Peer review underlies the present system of scholarly publication. The present essay examines what authors, reviewers and editors are saying about peer review and its future. Factors discussed include peer reviewer motivation, the process and potential alternatives, validity and reliability, recognition and rewards for peer reviewers, and the impact of technology and Open Access on scholarly co...

The purpose of this study was to explore factors influencing the motivation levels of nurses working at Butare University Teaching Hospital (BUTH) in Rwanda. A quantitative, exploratory and descriptive research design was used to explore these factors, and non-probability convenience sampling was used to include the most readily available persons as respondents. A convenient sample of 106 nurse...

We propose a method of unsupervised learning from stationary, vector-valued processes. A low-dimensional subspace is selected on the basis of a criterion which rewards data-variance (like PSA) and penalizes the variance of the velocity vector, thus exploiting the shorttime dependencies of the process. We prove error bounds in terms of the -mixing coe¢ cients and consistency for absolutely regul...

iris recognition is one of the most reliable methods for identification. in general, itconsists of image acquisition, iris segmentation, feature extraction and matching. among them, iris segmentation has an important role on the performance of any iris recognition system. eyes nonlinear movement, occlusion, and specular reflection are main challenges for any iris segmentation method. in this pa...

Introduction: In any job, performing job tasks requires different psychological demands, physical demands and workload, which can lead to physical and psychological problems in the employee. Therefore, the aim of the current research was to predict the health (organizational stress, health complaints, exhaustion and fatigue) of employees from the psychological demands of the job, physical deman...

Vivian Siegel is at the Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA (e-mail: [email protected]) By establishing the Resource Article section and stronger policies for materialssharing and citation, we hope to encourage and properly reward the development and sharing of resources, thereby accelerating research using model organisms to advanc...