LLukas22/scidocs huggingface dataset:
Customer Acquisition Promotions and Customer Asset Value 197

In this article, the author addresses the question of how a firm’s acquisition efforts influence the composition of the customer portfolio. The first part of the research is a conceptual model that illustrates how customer uncertainty provides an explanation for why promotionally acquired customers have lower repurchase rates and smaller lifetime values. The second part of the research involves empirical analyses of customer-level data from a newspaper and an online grocer. In both data sets, acquisition discount depth is negatively related to repeat-buying rates and customer asset value. For example, a 35% acquisition discount results in customers with about one-half the long-term value of non–promotionally acquired customers.
Emojis: Insights, Affordances, and Possibilities for Psychological Science.

We live in a digital society that provides a range of opportunities for virtual interaction. Consequently, emojis have become popular for clarifying online communication. This presents an exciting opportunity for psychologists, as these prolific online behaviours can be used to help reveal something unique about contemporary human behaviour.
Occupational Stress and Job Satisfaction among Nurses

Job related stress and job dissatisfaction are becoming increasingly large disorder among nurses. Stress and job satisfaction has a cost for individual in term of health and well-being and for organization in term of absenteeism and turnover which is in directly affecting quality of care provided to the patient. OBJECTIVESTo assess occupational stress and job satisfaction among nurses working in tertiary care hospitals and to find out correlation between occupational stress and job satisfaction among nurses. Methodology: Descriptive study design was used with explorative research approach, study sample was 100 nurses selected by Convenient sampling technique .Results : maximum 88%of nurses were working as staff nurses,54% were in age group of 21to30 years, being female with sex 86% and 57%were married whereas maximum 45% with no child . maximum 60% nurses were with professional education of RGNM,51%were having below 5 years of experience and 68% belong nuclear family with maximum 35% were having more than three dependent member in their family. Majority of nurses reported there is frequent occurrence of stress associated with Uncertainty by concerning treatment(49%), Dealing with patient and families(48%), workload (59%), Conflict with doctors (49%), Death and dying (50%), Conflict with supervisors(52%). where as Inadequate emotional preparation (68%), Discrimination(48%) ,Conflict with peers (53%) as occasionally stress inducing causes as reported by nurses. Participant reported only average satisfaction with compensation (63%) and independence (54%). Participants have reported high level of satisfaction almost in all reinforcing factors namely Ability utilization(83%), Achievement (77%), Activity (60%) advancement (59%) ,Authority(79%), Hospital policy(62%), Coworkers(79%), Creativity(67%), , Security(65%), Social service(89%), Social status(75%), Moral value (75%), Recognition (68%), Responsibility(72%), Supervision human relation(54%), Variety(71%), Working condition( 79%).but in case of compensation (63%)and independence(54%) they have reported only average level of job satisfaction. CONCLUSION: There was no significant association found between occupational stress, job satisfaction and age, sex, professional education, year of experience. Specific measure to reduce stress of nurse associated with frequently occurring causes and measures to improve job satisfaction associated with compensation and independence will be helpful to improve performance of the nurses.
The Role of Personality in Adolescent Career Planning and Exploration: A Social Cognitive Perspective.

Social cognitive career theory (SCCT) recognises the importance of individual differences and contextual influences in the career decision-making process. In extending the SCCT choice model, this study tested the role of personality, social supports, and the SCCT variables of selfefficacy, outcome expectations and goals in explaining the career readiness actions of career planning and exploration. The authors surveyed 414 Australian high school students in Years 10, 11 and 12. Career exploration was associated with goals and social supports, whereas career planning was associated with self-efficacy, goals, personality and an interaction term for goals and social support that indicated that levels of planning were highest when social support and goals were highest. Implications for parents, teachers and guidance counsellors as well as recommendations for future research directions are discussed.
EXPLORING THE ROLE OF LEARNING CAPABILITIES IN INNOVATION-BASED COMPETITIVE STRATEGY

Although the literature on the role of learning from external and internal sources in the innovation process has grown in significance over the last few decades, prior research has failed to conceptualise these activities as organisational capabilities having potential to contribute to the competitive strategy of the firm. Similarly, past innovation research has been biased toward technological innovation and sustained competitive advantage has been operationalised poorly. This paper examines the role of internally focused and relational learning capabilities in innovation-based competitive strategy. Premised on the capability-based theory of sustained competitive advantage the paper argues that entrepreneurial firms pursuing organisational innovation-based competitive strategy build and nurture distinctive capabilities in relational learning and internally focused learning and these capabilities create competitive advantage. Data obtained from 324 manufacturing firms largely support the theoretical framework. Implications for the theory of competitive strategy and directions for further research are suggested.
Differences in neural activation as a function of risk-taking task parameters

Despite evidence supporting a relationship between impulsivity and naturalistic risk-taking, the relationship of impulsivity with laboratory-based measures of risky decision-making remains unclear. One factor contributing to this gap in our understanding is the degree to which different risky decision-making tasks vary in their details. We conducted an fMRI investigation of the Angling Risk Task (ART), which is an improved behavioral measure of risky decision-making. In order to examine whether the observed pattern of neural activation was specific to the ART or generalizable, we also examined correlates of the Balloon Analog Risk Taking (BART) task in the same sample of 23 healthy adults. Exploratory analyses were conducted to examine the relationship between neural activation, performance, impulsivity and self-reported risk-taking. While activation in a valuation network was associated with reward tracking during the ART but not the BART, increased fronto-cingulate activation was seen during risky choice trials in the BART as compared to the ART. Thus, neural activation during risky decision-making trials differed between the two tasks, and this observation was likely driven by differences in task parameters, namely the absence vs. presence of ambiguity and/or stationary vs. increasing probability of loss on the ART and BART, respectively. Exploratory association analyses suggest that sensitivity of neural response to the magnitude of potential reward during the ART was associated with a suboptimal performance strategy, higher scores on a scale of dysfunctional impulsivity (DI) and a greater likelihood of engaging in risky behaviors, while this pattern was not seen for the BART. Our results suggest that the ART is decomposable and associated with distinct patterns of neural activation; this represents a preliminary step toward characterizing a behavioral measure of risky decision-making that may support a better understanding of naturalistic risk-taking.
Atomic magnetic moment and X-ray photoelectron spectra of Fe-based crystalline and amorphous alloys

Abstract X-ray photoelectron spectra of the valence band and Fe 2p 3 2 and 3s core levels have been measured both for polycrystalline FeCr alloys and amorphous FeB alloys. The 3s-multiplet splitting has been used to estimate the local magnetic moment of Fe atoms. To explain the observed concentration dependence of the magnetic moment, the calculations of the electronic structure and the magnetic moment of the Fe atoms were performed in the framework of the tight-binding coherent potential approximation. Results of the calculations agree with the experimental concentration dependence of the magnetic moment of Fe atoms. This dependence of the atomic magnetic moment on a boron concentration for amorphous FeB alloys obeys the Slater—Pauling rule on going from 15.5 to 19.5 at.% but shows a slight deviation from this linear behaviour at about 15 at.%. For FeCr, alloys the atomic magnetic moment is almost constant for differences of components concentration in agreement with X-ray photoemission spectroscopy measurements, whereas the average magnetic moment of the alloy decreases almost linearly with increasing Cr concentration. The difference in concentration dependence of the atomic magnetic moment is explained in terms of a charge transfer between s, p and d bands which is found to be larger for the amorphous FeB alloys than for the polycrystalline FeCr alloys.
Automated Brain Tumor Detection and Identification Using Image Processing and Probabilistic Neural Network Techniques

In this paper, modified image segmentation techniques were applied on MRI scan images in order to detect brain tumors. Also in this paper, a modified Probabilistic Neural Network (PNN) model that is based on learning vector quantization (LVQ) with image and data analysis and manipulation techniques is proposed to carry out an automated brain tumor classification using MRI-scans. The assessment of the modified PNN classifier performance is measured in terms of the training performance, classification accuracies and computational time. The simulation results showed that the modified PNN gives rapid and accurate classification compared with the image processing and published conventional PNN techniques. Simulation results also showed that the proposed system out performs the corresponding PNN system presented in [30], and successfully handle the process of brain tumor classification in MRI image with 100% accuracy when the spread value is equal to 1. These results also claim that the proposed LVQ-based PNN system decreases the processing time to approximately 79% compared with the conventional PNN which makes it very promising in the field of in-vivo brain tumor detection and identification. Keywords— Probabilistic Neural Network, Edge detection, image segmentation, brain tumor detection and identification
High commitment HR practices , the employment relationship and job performance : A test of a mediation model

Purpose: This study outlines and tests a high commitment model of human resource (HR) practices and its association with outcomes through a path including employee perceptions and attitudes, thereby seeking a new way of opening the so-called ‘black box’ between human resource management (HRM)
Learning With Continuous Classes

Some empirical learning tasks are concerned with predicting values rather than the more familiar categories. This paper describes a new system, m5, that constructs tree-based piecewise linear models. Four case studies are presented in which m5 is compared to other methods.
American College of Rheumatology hybrid analysis of certolizumab pegol plus methotrexate in patients with active rheumatoid arthritis: data from a 52-week phase III trial.

OBJECTIVE
The American College of Rheumatology (ACR) hybrid (a modified mean percent response to treatment) was officially recommended by the ACR as a revision to 20%, 50%, and 70% response criteria (ACR20/50/70) scores, but has not been tested in clinical trials. We performed a post hoc analysis of a phase III study of certolizumab pegol (Rheumatoid Arthritis Prevention of Structural Damage 1 [RAPID 1]) using the ACR hybrid.


METHODS
Patients with active rheumatoid arthritis were randomized to certolizumab pegol (200 mg or 400 mg every other week) plus methotrexate or placebo plus methotrexate. ACR hybrid scores were compared with ACR20/50/70 outcomes.


RESULTS
Differences between active treatment and placebo were significant throughout the study using the ACR20 and ACR hybrid outcomes. In the certolizumab pegol 200 mg group, the median ACR hybrid score at week 52 (last observation carried forward) was 49.99. A total of 258 (65.8%) of 392 and 172 (43.9%) of 392 patients had ACR20 and ACR50 responses, respectively. An additional 55 patients (14.0%) and 59 patients (15.1%) had mean improvements in ACR core measures of ≥ 20% and ≥ 50%, respectively, and therefore had positive ACR hybrid scores, despite lacking ACR20 and ACR50 responses, respectively. In the placebo group, median ACR hybrid scores were <10 at most time points; unlike other measures, the ACR hybrid measure indicated worsening scores for many patients.


CONCLUSION
ACR hybrid analysis had greater sensitivity than traditional ACR20/50/70 criteria, demonstrating improvements in ACR20 nonresponders treated with certolizumab pegol. Negligible benefit was observed with placebo using ACR hybrid analysis.
[Adaptation and validation of the Rheumatoid Arthritis Quality of Life Scale (RAQoL) to Mexican Spanish].

OBJECTIVE
To develop and validate the Mexican-Spanish version of the Rheumatoid Arthritis Quality of Life questionnaire (RAQoL).


METHODS
The original UK English version of RAQoL was translated into Mexican-Spanish version by a bilingual translation panel. An independent lay panel reviewed the instrument's item phrasing to ensure comprehensiveness and appropriateness in colloquial Mexican-Spanish. Structured cognitive debriefing interviews were conducted with 15 Rheumatoid Arthritis (RA) patients to assess face and content validity. Finally, an independent sample of RA patients completed the RAQoL and additional assessments were performed to assess reproducibility and construct validity.


RESULTS
Translation and adaptation was successful as both the lay panel and cognitive debriefing participants considered the new language version to be appropriate. Fifty-seven patients were included in the final evaluation of the Mexican-Spanish version of RAQoL (73.8% female, mean age 52.4 years, SD 14.1, RA duration range 2-27 years). Cronbach's α for the new RAQoL was 0.91 and the test-retest reliability 0.92, indicating that the measure has good internal consistency and low random measurement error. The Mexican-Spanish version of RAQoL could discriminate between patients who differed on their perception of disease activity, general health status, current rating of perceived RA severity and whether or not they were experiencing a disease flare.


CONCLUSIONS
The Mexican-Spanish version of RAQoL was well accepted by RA patients. The psychometric quality of the adapted questionnaire shows that it is suitable for use in clinical studies and trials of patients with RA.
Increased prefrontal hemodynamic change after atomoxetine administration in pediatric attention-deficit/hyperactivity disorder as measured by near-infrared spectroscopy.

AIM
Atomoxetine, approved in Japan for the treatment of pediatric attention-deficit/hyperactivity disorder (ADHD) in April 2009, is a nonstimulant that is thought to act presynaptically via the inhibition of norepinephrine reuptake. Near-infrared spectroscopy is a non-invasive optical tool that can be used to study oxygenation and hemodynamic changes in the cerebral cortex. The present study examined the effects of a clinical dose of atomoxetine on changes in prefrontal hemodynamic activity in children with ADHD, as measured by near-infrared spectroscopy using the Stroop Color-Word Task.


METHODS
Ten children with ADHD participated in the present study. We used 24-channel near-infrared spectroscopy to measure the relative concentrations of oxyhemoglobin in the frontal lobes of participants in the drug-naïve condition and those who had received atomoxetine for 8 weeks. Measurements were conducted every 0.1 s during the Stroop Color-Word Task. We used the ADHD Rating Scale-IV-Japanese version (Home Version) to evaluate ADHD symptoms.


RESULTS
We found a significant decrease in ADHD Rating Scale-IV-Japanese version scores, from 30.7 to 22.6 (P=0.003). During the Stroop Color-Word Task, we found significantly higher levels of oxyhemoglobin changes in the prefrontal cortex of participants in the atomoxetine condition compared with those in the drug-naïve condition.


CONCLUSIONS
This increase in oxyhemoglobin changes might indicate an intensified prefrontal hemodynamic response induced by atomoxetine. Near-infrared spectroscopy is a sensitive tool for measuring the pharmacological effects of atomoxetine in children with ADHD.
Polyglandular autoimmune syndromes.

BACKGROUND
In recent years, scientific knowledge pertaining to the rare ORPHAN polyglandular autoimmune syndrome (registered code ORPHA 282196) has accumulated.


OBJECTIVE
To offer current demographic, clinical, serological and immunogenic data on PAS.


METHODS
Review of the pertinent and current literature.


RESULTS
Polyglandular autoimmune syndromes (PAS) are multifactorial diseases with at least two coexisting autoimmune-mediated endocrinopathies. PAS show a great heterogeneity of syndromes and manifest sequentially with a large time interval between the occurrence of the first and second glandular autoimmune disease. PAS cluster with several non-endocrine autoimmune diseases. In most endocrinopathies of PAS, the autoimmune process causes an irreversible loss of function, while chronic autoimmune aggressions can simultaneously modify physiological processes in the affected tissue and lead to altered organ function. The rare juvenile PAS type I is inherited in a monogenetic manner, whereas several susceptibility gene polymorphisms have been reported for the more prevalent adult types. Relevant for a timely diagnosis at an early stage is the screening for polyglandular autoimmunity in patients with monoglandular autoimmune disease and/or first degree relatives of patients with PAS. The most prevalent adult PAS type is the combination of type 1 diabetes with autoimmune thyroid disease.


CONCLUSIONS
Early detection of specific autoantibodies and latent organ-specific dysfunction is advocated to alert physicians to take appropriate action in order to prevent full-blown PAS disease.
Long-term follow-up of lenalidomide in relapsed/refractory mantle cell lymphoma: subset analysis of the NHL-003 study

BACKGROUND
Mantle cell lymphoma (MCL) is an uncommon type of non-Hodgkin lymphoma with poor overall prognosis, requiring the development of new therapies. Lenalidomide is an immunomodulatory agent demonstrating antitumor and antiproliferative effects in MCL. We report results from a long-term subset analysis of 57 patients with relapsed/refractory MCL from the NHL-003 phase II multicenter study of single-agent lenalidomide in patients with aggressive lymphoma


DESIGN
Lenalidomide was administered orally 25 mg daily on days 1-21 every 28 days until progressive disease (PD) or intolerability. The primary end point was overall response rate (ORR).


RESULTS
Fifty-seven patients with relapsed/refractory, advanced-stage MCL had a median of three prior therapies. The ORR was 35% [complete response (CR)/CR unconfirmed (CRu) 12%], with a median duration of response (DOR) of 16.3 months (not yet reached in patients with CR/CRu) by blinded independent central review. The median time to first response was 1.9 months. Median progression-free survival was 8.8 months, and overall survival had not yet been reached. The most common grade 3/4 adverse events (AEs) were neutropenia (46%), thrombocytopenia (30%), and anemia (13%).


CONCLUSIONS
These results show the activity of lenalidomide in heavily pretreated, relapsed/refractory MCL. Responders had a durable response with manageable side-effects. Clinical trial number posted on www.clinicaltrials.gov NCT00413036.
Online AUC Maximization

Most studies of online learning measure the performance of a learner by classification accuracy, which is inappropriate for applications where the data are unevenly distributed among different classes. We address this limitation by developing online learning algorithm for maximizing Area Under the ROC curve (AUC), a metric that is widely used for measuring the classification performance for imbalanced data distributions. The key challenge of online AUC maximization is that it needs to optimize the pairwise loss between two instances from different classes. This is in contrast to the classical setup of online learning where the overall loss is a sum of losses over individual training examples. We address this challenge by exploiting the reservoir sampling technique, and present two algorithms for online AUC maximization with theoretic performance guarantee. Extensive experimental studies confirm the effectiveness and the efficiency of the proposed algorithms for maximizing AUC.
Endovascular treatment of intracranial aneurysms with matrix detachable coils: midterm anatomic follow-up from a prospective multicenter registry.

BACKGROUND AND PURPOSE
Polyglycolic/polylactic acid-covered platinum coils have been proposed to reduce the rate of aneurysm recanalization after endovascular treatment. A prospective and multicenter registry was conducted in France to evaluate the safety and short-term and midterm efficacy of Matrix coils. This analysis focused on anatomic midterm results.


MATERIALS AND METHODS
Two hundred thirty-six patients harboring 244 ruptured or unruptured aneurysms treated via endovascular approach by using Matrix coils were included in this registry. Treatment was totally or partially performed by using Matrix coils. Anatomic results were evaluated on postoperative and last-follow-up digital subtraction angiography (DSA) by using the Raymond scale. "Recanalization" was defined as worsening, and "progressive thrombosis" was defined as improvement on the Raymond scale.


RESULTS
Anatomic midterm follow-up was obtained in 165 of 236 patients (70%) harboring 171 aneurysms (range, 6-27 months; mean, 14 +/- 4 months). At midterm follow-up angiography, 79 aneurysms were completely occluded (46.2%), 43 had a neck remnant (25.1%), and 49 had an aneurysm remnant (28.7%). Of 171 aneurysms, recanalization was observed in 44 patients (25.7%), including major recanalization in 18 patients (10.5%). Recanalization was more frequent if the embolized volume of aneurysm was </=25%. Progressive thrombosis was observed in 52 aneurysms (30%). No bleeding or rebleeding was observed during the period of follow-up.


CONCLUSION
The efficacy of Matrix coils in preventing recanalization was not demonstrated in our series. In agreement with previous studies using bare platinum coils, volumic occlusion was an important feature for the prediction of aneurysm recanalization. A high percentage of progressive thrombosis in incompletely treated aneurysms was observed in our series, suggesting a biologic activity of Matrix coils.
Rates of Interest: A Review

This paper is a critical commentary on the papers by Rigby, and Webber and Tonkin that are part of this special issue of Environment and Planning A on â€œAnalytical political economyâ€ .