Miracle-dz/UniFAR-FTUs huggingface dataset:
Market orientation and performance: a meta‐analysis

Purpose – To assess quantitatively the impact of market orientation on the performance of the firm. While much empirical work has centered on market orientation, the generalizability of its impact on performance has been under‐researched.Design/methodology/approach – A substantive meta‐analysis quantitatively summarizes the results of empirical studies of the direct and indirect impact of market orientation on three outcomes. A second, methodological meta‐analysis assessed the influence of methodological variables on explained variance in performance.Findings – The direct, indirect, and total impacts of market orientation on performance were all significant. Additionally, the geographic location of the study and the performance measure used (but not the scale) affected explained variance.Research limitations/implications – First, across study contexts, market orientation affects performance. Second, its impact might be stronger than previously thought due to the indirect paths not considered in previous r.
Thermotolerance of Listeria monocytogenes and Salmonella typhimurium after sublethal heat shock

The effect of prior heat shock on thermotolerance of Listeria monocytogenes and Salmonella typhimurium in broth culture was determined. Bacteria were grown at the permissive temperature of 35 degrees C, sublethally heated at 35 (control), 42, 48, and 52 degrees C (nonpermissive control) for various times, and inactivated at either 57.8 or 52 degrees C. The induction of increased thermotolerance by heat shock, although consistent within each experiment, was generally not significant for L. monocytogenes; the increase was significant for S. typhimurium. Temperature shift experiments with L. monocytogenes suggested that induced thermotolerance was not long lived unless the shock temperature was maintained.
International Conference on Mobile Systems and Pervasive Computing ( MobiSPC-2014 ) Nearby Friend Discovery with Geo-Indistinguishability to Stalkers

Nearby friend discovery is a popular location based service (LBS), which allows you to discover nearby like-minded people, and make friends with them. The main privacy threat of this service is that the disclosure of locations leaves opportunities for stalkers. Although location privacy preservation in LBS has recently received much attention, few works have been done on privacy-aware nearby friend discovery, where people want to discover nearby friends without exposing their private locations to arbitrary strangers. Unlike most of other LBS services, nearby friend discovery needs to consider the privacy of both of the two communicating entities, i.e., the user who is searching for nearby people, and the user who is being discovered by others. This unique property makes it a great challenge to protect users’ location privacy while providing satisfactory service quality. This paper presents the first research addressing this issue by combining the location approximation technique and the homomorphic cryptography. We show that the proposed scheme provides formal privacy guarantees for the LBS users, and still achieves satisfactory quality of the LBS. c © 2014 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of Elhadi M. Shakshuki.
Trypsin Revisited

A series of crystal structures of trypsin, containing either an autoproteolytic cleaved peptide fragment or a covalently bound inhibitor, were determined at atomic and ultra-high resolution and subjected to ab initio quantum chemical calculations and multipole refinement. Quantum chemical calculations reproduced the observed active site crystal structure with severe deviations from standard stereochemistry and indicated the protonation state of the catalytic residues. Multipole refinement directly revealed the charge distribution in the active site and proved the validity of the ab initio calculations. The combined results confirmed the catalytic function of the active site residues and the two water molecules acting as the nucleophile and the proton donor. The crystal structures represent snapshots from the reaction pathway, close to a tetrahedral intermediate. The de-acylation of trypsin then occurs in true SN2 fashion.
Bifurcation or Entanglement? Settler Identity and Biculturalism in Aotearoa New Zealand

This quote from New Zealand comedian Ewen Gilmore perfectly captures the ontological status of settler subjects as ‘human hinges’ (Morris, 1992, p. 471), ‘suspended between “mother” and “other”’ (Lawson, 1995, p. 25). Although Gilmore is making a joke, like a lot of humour it has the ring of truth. Of course, settler peoples have constructed themselves identities in the form of nationalism: they are ‘New Zealanders’, ‘Australians’, ‘Canadians’ and so on. It is through nationalism, and its narratives of the relation between people and place, that they have consolidated their rights to belong, and to rule, in the colonies they founded. Even so, these nationalist assertions frequently remain uncertain, as Gilmore indicates. In this paper I focus on the uncertainty that surrounds assertions of settler identity in Aotearoa New Zealand. I argue that uncertainty offers an opportunity for selfreflection that is currently being squandered. Rather than reflect on how settlers came to be these ‘human hinges’ and what that means for contemporary New Zealanders, official representations of national and settler identity in Aotearoa New Zealand work to elide the sources of unease in New Zealand history. Since the 1980s the dominant rhetoric of New Zealand nationalism has been of a bicultural nation with two
Microscopic Assessment of the Enamel Etching Pattern According to Different Etching Times Using Orthophosphoric Acid Gels

The aim of our study was to compare micro-morphological changes in enamel surfaces after etching for 60 or 120 s by 37% phosphoric acid gels. Eighteen extracted, not carious human teeth with sound buccal surfaces were obtained, thoroughly cleaned with a water slurry of pumice powder, with a soft rubber prophylaxis cup rotating at low speed and stored in saline at room temperature. After the teeth were sectioned longitudinally in mesio-distal direction using a low-speed bur, the enamel was etched with 37% phosphoric acid (Lucstar, Romania) for 60s and 120s with applicator sponges, rinsed with water and sprayed with air for 15 s, and dried for another 15 s. Each section was evaluated under the microscope and photomicrographs were taken of representative areas that were most often observed using statistical analysis. The enamel surface etched with 37% phosphoric acid gels for 60 and 120 s showed similar etching patterns. No evident morphological differences were observed in the type of enamel etching patterns when treated with 37% phosphoric acid gels for 60 and 120 s. However, etching with 37% phosphoric acid gel for 60 s resulted in a partial removal of the prism core and the micro-morphological characteristics of the enamel surface approached those produced by 37% phosphoric acid gels used for 120 s. Phosphoric acid gel used at concentrations of 37% produced similar micro-morphological etching patterns on enamel surfaces after 60 or 120 s of application.
Towards Integrating Emotions into Strategic Management Research: Trait Affect and Perceptions of the Strategic Environment

This paper describes an empirical investigation of the associations between trait negative affect and perceptions of the strategic environment. Data were collected from two samples of managers undertaking a distance learning MBA course (n = 59, n = 272). In the smaller sample, significant correlations were found between negative affectivity and perceptions of poor organizational performance and industry complexity. These results were replicated in the larger sample, after controlling for other variables. Additionally, negative affectivity was found to be related to perceived industry growth, and marginally related to perceived industry competitiveness.
The "self digest": self-knowledge serving self-regulatory functions.

Self-knowledge is conceptualized as a self digest that summarizes one's relations to the world and the personal consequences of these relations. It is a handy sourcebook that serves self-regulatory functions. It is distinguished from the classic notion that self-knowledge contains one descriptive actual self. The self digest contains information about three kinds of actual selves that differ in self-regulatory function: (a) an instrumental self, (b) an expectant self, and (c) a monitored self. It represents not only the actual self but desired (and undesired) selves that reflect different kinds of self-regulatory focus (i.e., promotion or prevention). It represents not only one's own standpoint but also the standpoint of others whose beliefs one is motivated to take into account. This self-regulatory perspective is used to reconsider self-esteem, self-enhancement, self-consistency, self-presentation, and cross-cultural differences in the self.
A multidimensional analysis of changes in mathematics motivation and engagement during high school

Despite concerns about declining interest and enrolments in mathematics, little research has examined change in a broad range of constructs reflecting mathematics motivation and engagement. The current study used an 11-factor model of motivation and engagement to evaluate levels of maths motivation compared to general academic motivation and to assess group-level and individual-level changes in maths motivation during secondary school. In a multicohort-multioccasion design, Australian students completed an adaptation of the Motivation and Engagement Scale in two consecutive school years. Ratings in mathematics were lower than general academic motivation on several scales but particularly on the planning and task management scales and for the year seven cohort. Mean ratings of valuing and task management decreased over the two years, while stability of mathematics motivation was moderate. Girls reported stronger anxiety, uncertain control and failure avoidance than boys, despite also reporting greater mastery focus. The findings demonstrate that a multidimensional model facilitates a differentiated analysis of possible reasons for a waning interest in mathematics.
Maternal and perinatal aspects of birth defects: a case-control study

Objective: To assess the prevalence of congenital defects and to investigate their maternal and perinatal associated aspects by reviewing Birth Certificates. Methods: Among all born alive infants from January 2003 to December 2007 in Maternidade da Santa Casa de Misericórdia of São Carlos, Southeast Brazil (12,199 infants), cases were identified as the newborns whose Birth Certificates registered any congenital defect. The same sex neonate born immediately after the case was chosen as a control. In total, 13 variables were analyzed: six were maternal related, three represented labor and delivery conditions and four were linked to fetal status. The chi-square and Fisher's exact tests were used to compare the variables, being significant p<0.05. Results: The prevalence of congenital defects was 0.38% and the association of two or more defects represented 32% of all cases. The number of mothers whose education level was equal or less than eight years was significantly higher among the group with birth defects (p=0.047). A higher frequency of prematurity (p<0.001) and cesarean delivery (p=0.004) was observed among children with birth defects. This group also showed lower birth weight and Apgar scores in the 1st and the 5th minute (p<0.001). Conclusions: The prevalence of congenital defect of 0.38% is possibly due to underreporting. The defects notified in the Birth Certificates were only the most visible ones, regardless of their severity. There is a need of adequate epidemiological monitoring of birth defects in order to create and expand prevention and treatment programs.
Muslim Discrimination: Evidence From Two Lost-Letter Experiments

Since the 9/11 terrorist attacks, there has been considerable concern about whether Muslims living in Western countries are targets of prejudice. A considerable amount of survey-based evidence suggests that Muslims are victims of discrimination. This paper tested this hypothesis. Two lost-letter experiments were conducted to test whether the difference in returned letters would be attributable to whether the addressee was Muslim or Swedish. The results show that Muslims receive far fewer letters than do Swedes. However, this discrimination only appears when the lost letters contain money; in which case, the finder gains by not posting the letter.
User-Centric Content Negotiation for Effective Adaptation Service in Mobile Computing

We address the challenges of building a good content adaptation service for mobile devices and propose a decision engine that is user-centric with QoS awareness, which can automatically negotiate for the appropriate adaptation decision to use in the synthesis of an optimal adapted version. The QoS-sensitive approach complements the lossy nature of the transcoding operations. The decision engine will look for the best trade off among various parameters in order to reduce the loss of quality in various domains. Quantitative methods are suggested to measure the QoS of the content versions in various quality domains. Based on the particular user perception and other contextual information on the client capability, the network connection, and the requested content, the proposed negotiation algorithm will determine a content version with a good aggregate score. We have built a prototype document adaptation system for PDF documents to demonstrate the viability of our approach.
Situer le social dans la psychologie de la santé : réflexions critiques

Dans cet article, nous considerons comment la psychologie de la sante se definit en tant que discipline, et le type de recherche et de pratique couvert par son agenda actuel. Nous nous focalisons sur la maniere dont les questions et preoccupations d’ordre social sont inclues dans la psychologie de la sante. De notre point de vue, la psychologie de la sante emprunte de nombreux concepts aux theories sociales et les adapte directement du domaine de la psychologie sociale plutot que de developper ses propres theories, modeles ou comprehensions lies a la sante. En prenant cette voie, nous affirmons que la psychologie de la sante reproduit les questions et difficultes de la psychologie sociale et herite de ces problemes sans les resoudre. Nous etudions la raison pour laquelle ces problemes sont importants pour la psychologie de la sante, et pourquoi la sante en soi est essentiellement un concept social. Nous soutenons qu’il nous faut developper de meilleures theories et methodes pour rendre compte du social afin de l’incorporer de facon plus adequate a la recherche et a la pratique dans la psychologie de la sante. Nous proposons une approche au plus pres des preoccupations quotidiennes qui s’interesse a la banalite de l’ordinaire comme une issue possible a ces limites. Nous montrons egalement l’apport possible d’une approche critique de la psychologie de la sante comme moyen de traiter ces problemes, car l’approche critique favorise la distance envers les bases ideologiques de la psychologie ainsi que la reflexivite dans le travail du chercheur. Cette distance permettant une recherche tournee vers l’innovation methodologique et vers des theorisations plus appropriees pour traiter le quotidien. Integrer avec succes le social et la sante constitue toujours un defi pour la psychologie de la sante.
Associations between social potential and emotional and behavioural difficulties in Egyptian children

A number of Egyptian children experience psychiatric or mental health problems owing to a variety of internal and external qualities in their social context. These problems may mask strengths, particularly their social potential represented in their prosocial behaviour (PB). Research on emotional and behavioural difficulties (EBDs) should thus consider their strengths. The present study focuses on the PBs of Egyptian children. Teachers of 454 children from 6 schools completed the Strengths and Difficulties Questionnaire (SDQ) to identify the children's EBDs as well as their PBs, together with Conners' Teacher Rating Scale (CTRS-39) to identify EBDs alone. The investigation entailed examining gender differences in strengths and difficulties, frequency of prosociality categories and associations between high versus low levels of PB with EBDs. Descriptive statistics, bi-variate and regression analyses, and t-test statistics were employed to answer the research questions. Results showed that boys were reported to show more EBDs than girls, whereas girls showed better PBs than did the boys. Caring was the most prevalent PB among both girls and boys. EBDs composed a significant and fit model for predicting PBs. Implications of the present study regarding the assessment of social behaviours in schools are discussed.
Hailey‐Hailey Disease

Hailey-Hailey disease is an uncommon familial blistering condition. It was first described by Hailey and Hailey (1939) and subsequently by others, including Winer and Leeb (1953). Hailey-Hailey disease usua lly occurs in more than one member of a famil y, but sporadic, apparentl y non-familial, cases have been recorded. The condition usually presents in adole scence or early adult life as a vesicular eruption in intertrigenous a reas and on the neck. The lesions are indolent, or if they do heal, rapidly recur. Lesions may at times appear scaly or crusted. Secondary pyogenic infection with consequent lymphadenopathy is not uncommon . Nikolsky's sign is often demonstrable. There is usually some local d iscomfort and often some pruritus. Hist ologically there is a suprabasal cleavage, the basal layer remai ning adherent to the dermis . The lesion may be indistinguishable from those seen in pemphigus vulgaris, but often there is also a dyskera tosis of the type seen in Dari er's d isease. Some authors prefer to regard Hailey-Hailey disease as an atypical form of epidermolysis bullosa.
Self-Regulated Learning, Social Cognitive Theory, and Agency

The conception and theory of agency as self-regulation that is contained within Bandura's social cognitive theory is examined and elaborated in the context of the relevant philosophical history of ideas and through consideration of recent work in theoretical developmental psychology. Implications for self-regulated learning in classrooms are considered. In particular, it is suggested that the understanding of agency contained within social cognitive theory as elaborated herein might be developed as an alternative to conceptions of self-regulation and agency within constructivist and socioculturalist theorizing in educational psychology. However, the classroom application of such an alternative would require a much less dualistic and teacher-directed form of teaching than suggested in much past and current social cognitive work on self-regulation.
Deeply learned face representations are sparse, selective, and robust

This paper designs a high-performance deep convolutional network (DeepID2+) for face recognition. It is learned with the identification-verification supervisory signal. By increasing the dimension of hidden representations and adding supervision to early convolutional layers, DeepID2+ achieves new state-of-the-art on LFW and YouTube Faces benchmarks. Through empirical studies, we have discovered three properties of its deep neural activations critical for the high performance: sparsity, selectiveness and robustness. (1) It is observed that neural activations are moderately sparse. Moderate sparsity maximizes the discriminative power of the deep net as well as the distance between images. It is surprising that DeepID2+ still can achieve high recognition accuracy even after the neural responses are binarized. (2) Its neurons in higher layers are highly selective to identities and identity-related attributes. We can identify different subsets of neurons which are either constantly excited or inhibited when different identities or attributes are present. Although DeepID2+ is not taught to distinguish attributes during training, it has implicitly learned such high-level concepts. (3) It is much more robust to occlusions, although occlusion patterns are not included in the training set.
A Partitioning Deletion/Substitution/Addition Algorithm for Creating Survival Risk Groups

Summary Accurately assessing a patient’s risk of a given event is essential in making informed treatment decisions. One approach is to stratify patients into two or more distinct risk groups with respect to a specific outcome using both clinical and demographic variables. Outcomes may be categorical or continuous in nature; important examples in cancer studies might include level of toxicity or time to recurrence. Recursive partitioning methods are ideal for building such risk groups. Two such methods are Classification and Regression Trees (CART) and a more recent competitor known as the partitioning Deletion/Substitution/Addition (partDSA) algorithm, both of which also utilize loss functions (e.g., squared error for a continuous outcome) as the basis for building, selecting, and assessing predictors but differ in the manner by which regression trees are constructed. Recently, we have shown that partDSA often outperforms CART in so‐called “full data” settings (e.g., uncensored outcomes). However, when confronted with censored outcome data, the loss functions used by both procedures must be modified. There have been several attempts to adapt CART for right‐censored data. This article describes two such extensions for partDSA that make use of observed data loss functions constructed using inverse probability of censoring weights. Such loss functions are consistent estimates of their uncensored counterparts provided that the corresponding censoring model is correctly specified. The relative performance of these new methods is evaluated via simulation studies and illustrated through an analysis of clinical trial data on brain cancer patients. The implementation of partDSA for uncensored and right‐censored outcomes is publicly available in the R package, partDSA.
Rational Herding in Microloan Markets

This document presents supporting materials for the following publication: Zhang, Juanjuan and Peng Liu (2012), "Rational Herding in Microloan Markets," Management Science, Vol. 58, No. 5, May, pp. 892-912. Microloan markets allow individual borrowers to raise funding from multiple individual lenders. We use a unique panel dataset which tracks the funding dynamics of borrower listings on Prosper.com, the largest microloan market in the United States. We find evidence of rational herding among lenders. Well-funded borrower listings tend to attract more funding after we control for unobserved listing heterogeneity and payoff externalities. Moreover, instead of passively mimicking their peers (irrational herding), lenders engage in active observational learning (rational herding); they infer the creditworthiness of borrowers by observing peer lending decisions, and use publicly observable borrower characteristics to moderate their inferences. Counterintuitively, obvious defects (e.g., poor credit grades) amplify a listing's herding momentum, as lenders infer superior creditworthiness to justify the herd. Similarly, favorable borrower characteristics (e.g., friend endorsements) weaken the herding effect, as lenders attribute herding to these observable merits. Follow-up analysis shows that rational herding beats irrational herding in predicting loan performance.