Miracle-dz/UniFAR-FTUs huggingface dataset:
First Step in Social Media: Measuring the Influence of Online Management Responses on Customer Satisfaction

With the growing influence of online social media, firms increasingly take an active role in interacting with consumers in social media. For many firms, their first step in online social media is management responses, where the management responds to customers' comments about the firm or its products and services. In this article, we measure the impact of management responses on customer satisfaction using data retrieved from a major online travel agency in China. Applying a panel data model that controls for regression toward the mean and heterogeneity in individual preference for hotels, we find that online management responses are highly effective among low satisfaction customers but have limited influence on other customers. Moreover, we show that the public nature of online management responses introduces a new dynamic among customers. Although online management responses increase future satisfaction of the complaining customers who receive the responses, they decrease future satisfaction of complaining customers who observe but do not receive management responses. The result is consistent with the peer‐induced fairness theory.
Financial Market Bubbles and Crashes

Despite the thousands of articles and the millions of times that the word 'bubble' has been used in the business press, there still does not appear to be a cohesive theory or persuasive empirical approach with which to study 'bubble' and 'crash' conditions. This book presents a plausible and accessible descriptive theory and empirical approach to the analysis of such financial market conditions. It advances such a framework through application of standard econometric methods to its central idea, which is that financial bubbles reflect urgent short side rationed demand. From this basic idea, an elasticity of variance concept is developed. It is further shown that a behavioral risk premium can probably be measured and related to the standard equity risk premium models in a way that is consistent with conventional theory.
TnT tagger with fuzzy rule based learning

TnT is an efficient statistical Parts-of-speech (POS) Tagger based on Hidden Markov Model. TnT stands for Trigrams`n'Tags. Viterbi algorithm is used for finding the best tag sequence for a given observation sequence of words. TnT performs well on known word sequences. But, the performance degrades with increase in the number of unknown words. In this paper, we propose a method to overcome this performance degradation using fuzzy rules. Fuzzy rule based model is designed to provide TnT with sufficient information about the tag of unknown words without degrading the performance of TnT. When TnT with fuzzy rule based learning encounters an unknown word, the TnT generates a set of possible tags for the given word, based on the fuzzy rules matched by the word. If the word does not match any fuzzy rule, then the model depends upon the probability distribution of the suffix. This approach guarantees that the performance of TnT will only be improved from its normal performance.
Beyond Smart and Sociable: Re-thinking the Role of Abilities on Occupational Choices and Wages

In this paper, I study the role that multiple dimensions of pre-labor market ability play in explaining early occupational choices and wages. My analysis has three salient features. First, I take into account the endogeneity of schooling choices which enables me to decompose the total eect of ability into separate components attributable to schooling, occupation and productivity. Second, to better relate workers’ talents with the activities they perform in their jobs, I classify occupations as manual or abstract, according to their core task requirements using data from the O*NET. Third, I explore the implications of skill heterogeneity by adding mechanical ability to the standard cognitive-noncognitive framework. Using a Roy model with a factor structure and data from the NLSY79, I find that all three dimensions of ability are important and that they have multiple, heterogeneous, and independent roles. They influence the sorting of workers into schooling and occupations, and also directly aect wages, mainly by increasing productivity. Mechanical ability also increases wages but, unlike cognitive and noncognitive ability, it is associated with low schooling levels and manual occupations, both of which are associated with lower pay. The productivity eect from mechanical ability is large enough to override the negative, indirect wage eects that works through schooling and occupational choice.
Improvement of trajectory tracking performance via modified composite nonlinear control

In this paper, a modified version of composite nonlinear feedback (CNF) control method is proposed to achieve fast and accurate trajectory tracking for linear systems subject to input saturation and unknown disturbances. The basic idea is to incorporate a reference generator which constructs the target state vector corresponding with the trajectory reference signal, and an extended state observer which estimates both the system states and the disturbance, into the framework of robust CNF control. The control scheme can retain the fast transient performance of CNF control, and at the same time eliminate the steady-state bias due to disturbances. Simulation studies are conducted to verify that the control method can achieve good transient performance and steady-state accuracy in various trajectory tracking tasks and is more robust against the amplitude variations of disturbance/target reference.
Structural Requirements of Heparin Binding to Chlamydia trachomatis(*)

Heparin is a functional and structural analog of the Chlamydia trachomatis heparan sulfate-like attachment ligand that mediates infectivity by bridging chlamydiae to eukaryotic cells. The binding of heparin to the Chlamydia organism's surface was characterized by a direct binding assay. Although for two C. trachomatis biovars the binding by heparin was saturable, trachoma biovar organisms bound twice the amount of heparin than lymphogranuloma venereum biovar organisms. To probe the structural nature of the heparan sulfate-like ligand interactions, a range of heparin-derived oligosaccharides and sulfation-modified species of heparin were compared for their ability to compete with [3H]heparin for binding to chlamydial organisms and for inhibition of chlamydial attachment and infection of eukaryotic host cells. The assays revealed that a decasaccharide was the minimal chain length required to effectively bind C. trachomatis organisms, compete with the host cell receptor and rescue infectivity. In addition, a moderately sulfated adhesin analog, N-desulfated, N-acetylated heparin, was able to compete with chlamydial organisms for host cell receptors, whereas this derivative could not compete with [3H]heparin for binding to chlamydial organisms. These results indicate that the specificity of the eukaryotic cell receptor and the chlamydial surface acceptor differ in their fine-structure requirements of ligand binding, and that the size and sulfation density of the heparan sulfate-like ligand each contribute to its ability to bind and bridge chlamydiae to eukaryotic cells.
Leadership in OM research: a social network analysis of European researchers

Purpose – The purpose of this paper is to examine the leadership role of authors, institutions, and countries based on research co-authorship networks in the field of operations management (OM) and ranks European authors, institutions, and countries using network centrality measures. It also identifies the primary research areas of each of the leading European authors and maps the areas that European research in general has focussed most on. Design/methodology/approach – Based on co-authorships in publications appearing in a representative set of three leading OM journals over the 15-year period of 1998-2012, network measures of total degree centrality and betweenness centrality are used to identify influential European agents serving as leaders and bridge builders in OM research. Keyword analysis is used to identify the dominant areas of OM research in Europe as well as the primary areas of research of the leading authors. Findings – With UK, Spain, The Netherlands, and Italy accounting for the dominant .
Adult Height in Children with Growth Hormone Deficiency: A Randomized, Controlled, Growth Hormone Dose-Response Trial

Aim: To investigate the effect of 2 growth hormone (GH) doses on adult height (AH) in GH deficiency (GHD). Methods: A multicenter, randomized, controlled dose-response trial compared attained AH minus target height (TH) between children receiving 0.7 mg/m2/day biosynthetic GH (approx. 0.025 mg/kg/day) or 1.4 mg/m2/day (approx. 0.050 mg/kg/day). The patients enrolled in the trial were 20 ‘naïve’ GHD children (had not received GH before) and 15 ‘transfer’ GHD children (already on GH for at least 1 year). Results: In the naïve group, the mean ± SD AH minus TH was –5.3 ± 6.1 and –2.2 ± 6.9 cm in patients on 0.7 and 1.4 mg/m2/day, respectively (mean ± SE difference 3.1 ± 2.9; p = 0.3). In the transfer group, the mean ± SD AH minus TH was –4.4 ± 6.4 and +0.6 ± 7.0 cm in patients on 0.7 and 1.4 mg/m2/day, respectively (mean ± SE difference 5.0 ± 3.5; p = 0.17). Spontaneous puberty started 1.1 years earlier in children on 1.4 compared to 0.7 mg/m2/day. Induction of puberty was more often delayed in transfer children on 0.7 than on 1.4 mg/m2/day. Conclusion: In our GHD patients, AH was 4–5 cm less than TH in patients on 0.7 mg/m2/day GH, while it was 0–2 cm less in patients on 1.4 mg/m2/day GH, but this difference did not reach statistical significance, probably due to limited numbers of patients, considerable variability in the growth response and earlier spontaneous puberty and pubertal induction in the children on 1.4 mg/m2/day.
Clinical observation of removal of the necrotic corneal tissue combined with conjunctival flap covering surgery under the guidance of the AS-OCT in treatment of fungal keratitis.

AIM To study the clinical observation of removal of the necrotic corneal tissue combined with conjunctival flap covering surgery under the guidance of the AS-OCT in treatment of fungal keratitis. METHODS A retrospective study was done to 10 patients (10 eyes) who had accepted removal of the necrotic corneal tissue combined with conjunctival flap covering surgery for fungal keratitis,the diagnosis by corneal scraping and smear examination or confocal microscopy check hyphae.Local and systemic antifungal therapy more than one week for all patients, corneal ulcer enlarge or no shrink.Slit lamp microscope examination the diameter of corneal ulcer about 2mm-4mm.Anterior segment optical coherence tomography (AS-OCT) examine the depth of corneal ulcer between 1/3-1/2,infiltrate corneal stroma about 20um-80um,the diameter of corneal ulcer about 3mm-6mm.Type-B ultrasonic exclusion endophthalmitis. Complete removal lesions until transparent of stroma, make conjunctival flap equal or greater than ulcer 1mm nearby conjunctiva. Continued antifungal therapy. The vision, fungal recurrence, conjunctival flap rollback or desquamate were analysed. RESULTS Ten patients had success done this surgery, the corneal ulcer was not enlarge and healing afteroperation.7 cases were bridging conjunctival flap and 3cases were single conjunctival flap. Preoperation vision above 0.1 had 8 cases,7 cases had vision above 0.1 one week after surgery, while 1 cases vision droped from 0.3 to 0.05. There was not recurrent for fungal,2 cases conjunctival flap rollback:1 case was bridging and 1case was single flap, no conjunctival flap desquamate. CONCLUSION It is safe and effective to perform removal of the necrotic corneal tissue combined with conjunctival flap covering surgery under the guidance of the AS-OCT in treatment of fungal keratitis which werenot sensitive or aggravate for antifungal drugs.
Intergovernmental Organizations, Interaction, and Member State Interest Convergence

This article presents a general theory of how the interaction of state agents within intergovernmental organizations (IGOs) leads to a convergence in member state interests over time. The theory is based on the notion that, all else being equal, IGOs that facilitate more interaction between individuals from various states are conducive to greater member state interest convergence over time because there are more opportunities for agents from one or more member states to persuade agents from other member states to accept new ideas that affect how they define their states’ interests. I argue that such persuasion does not necessarily have to involve a shift in state identities but can also involve a diffusion of ideas about cause-and-effect relationships. Also, by focusing on IGOs as structures within which state agents interact, I argue against a narrow focus on socialization defined as the induction of new members into community norms. I present three hypotheses regarding which institutional attributes are conducive to member state interest convergence and test them using an original IGO data set. The findings are supportive of my general theory but provide some interesting support for existing theory that runs counter to one of the hypotheses presented here.
ADAM10–Notch signaling governs the recruitment of ovarian pregranulosa cells and controls folliculogenesis in mice

ABSTRACT Ovarian follicles are the basic functional units of female reproduction in the mammalian ovary. We show here that the protein a disintegrin and metalloproteinase domain 10 (ADAM10), a cell surface sheddase, plays an indispensable role in controlling primordial follicle formation by regulating the recruitment of follicle supporting cells in mice. We demonstrate that suppressing ADAM10 in vitro or deletion of Adam10 in vivo disrupts germline cyst breakdown and primordial follicle formation. Using a cell lineage tracing approach, we show that ADAM10 governs the recruitment of ovarian follicle cells by regulating the differentiation and proliferation of LGR5-positive follicle supporting progenitor cells. By detecting the development of FOXL2-positive pregranulosa cells, we found that inhibiting ADAM10 reduced the number of FOXL2-positive cells in perinatal ovaries. Furthermore, inhibiting ADAM10 suppressed the activation of Notch signaling, and blocking Notch signaling also disrupted the recruitment of follicle progenitor cells. Taken together, these results show that ADAM10–Notch signaling in ovarian somatic cells governs the primordial follicle formation by controlling the development of ovarian pregranulosa cells. The proper recruitment of ovarian follicle supporting cells is essential for establishment of the ovarian reserve in mice. Summary: ADAM10 determines the recruitment of pregranulosa cells and early folliculogenesis by regulating Notch signaling, which in turn controls the proliferation and differentiation of LGR5-positive progenitor cells in mice.
Characterization and evaluation of metformin-loaded solid lipid nanoparticles for celluar and mitochondrial uptake

Abstract Considered a popular drug for diabetes in recent years, metformin was determined to have a moderate anti-tumor effect, particularly in breast cancer. In this study, the anticancer mechanism of metformin was verified by preparing solid lipid nanoparticles (SLNs) and chitosan-modified solid lipid nanoparticles (CSLNs) containing metformin and then estimating the potential of these SLNs for uptake in cells and mitochondria. Metformin–SLNs were prepared using an emulsification and low-temperature solidification method. The mean particle size, zeta potential, entrapment efficiency, and loading efficiency of metformin–SLNs and metformin chitosan-modified SLNs were 102.3 ± 4.16 and 200.1 ± 17.69 nm, –21.25 ± 4.89 and 50.6 ± 4.09 mv, 26.25 ± 2.59% and 33.6 ± 2.21%, and 1.74 ± 0.16% and 1.46 ± 0.10%, respectively. TEM images showed that both the nanoparticles had spherical morphologies with no aggregation. Results of cellular and mitochondrial uptake showed that the metformin–SLNs were easier to uptake in cells and mitochondria than the pure drug group (that was the control group without SLN structure modification). The findings of this research provide a basis for conducting further studies on the anticancer mechanism of metformin.
A framework of conscientious corporate brand – a South African validation

Purpose – The purpose of this paper is to validate previous research in ethical branding by testing a conceptual framework on corporate branding using “the conscientious dimension”. Design/methodology/approach – This article tests a framework for conscientious corporate brands (CCBs) by investigating environmental and climate change issues as well as internal and external corporate codes of ethics as CCB dimensions. The empirical context is based upon South African business‐to‐business relationships.Findings – The findings indicate that four distinctive conscientious corporate brand dimensions exist.Research limitations/implications – This current study contributes to the better understanding of and more knowledge on conscientious corporate brand values. Opportunities for future research are provided as the study has explored new aspects of corporate branding.Practical implications – This study offers managerial implications particularly for practitioners located in emerging markets such as South Africa.Or.
Estimation of the conduction time of the baroreceptor-cardiac reflex in man.

The time relation between the rise of arterial pressure provoked by phenylephrine and the resulting reflex bradycardia was examined in a group of young healthy subjects studied at rest and during exercise. When systolic pressure is related to pulse interval on a beat to beat basis during the pressure rise the best correlation is obtained if each beat is related to the pulse interval immediately following, provided the heart rate is less than 75/min. For faster heart rates the correlation is better if each pressure is related to the next-but-one pulse interval. Similar findings were obtained in a group of older subjects with higher arterial pressures. These results suggest that the conduction time of the whole reflex loop is about 775 msec, or 475 msec from the baroreceptors to the effect on the heart.
The Moderation Effects of Perceptions of Organizational Politics on the Relationship between Work Stress and Turnover Intention: An Empirical Study about Civilian in Skeleton Government of China

It is disastrous for organization that valued employee leave their jobs. Many researches have found that work stress is consistently and strongly related to intentions to turnover. Therefore, studying buffers of the stress-turnover intention relationship is important. This paper examines the situational variables such as perceptions of organizational politics, as moderators of the stress-turnover relationship. An investigation from 304 employees in Chinese skeleton government found that: lower levels of perceived politics will minimize turnover intentions resulted from work stress. These findings are helpful to understand the unique relationships between these variables and provide specific information for managers to retain valued employees.
The Impact of Placement Stability on Behavioral Well-being for Children in Foster Care

OBJECTIVE. The problems children have upon entering foster care can potentially explain prior research findings that frequent placement changes are associated with poor outcomes. This study sought to disentangle this cascading relationship in order to identify the independent impact of placement stability on behavioral outcomes downstream. DESIGN/METHODS. Placement stability over the first 18 months in out-of-home care for 729 children from the National Survey of Child and Adolescent Well-being was categorized as early stability (stable placement within 45 days), late stability (stable placement beyond 45 days), or unstable (never achieving stability). Propensity scores predicting placement instability based on baseline attributes were divided into risk categories and added to a logistic regression model to examine the independent association between placement stability and behavioral well-being using the Child Behavior Checklist and temperament scores from the National Longitudinal Survey of Youth. RESULTS. Half (52%) of the children achieved early stability, 19% achieved later stability, and 28% remained unstable. Early stabilizers were more likely to be young, have normal baseline behavior, have no prior history with child welfare, and have birth parents without mental health problems. After accounting for baseline attributes, stability remained an important predictor of well-being at 18 months. Unstable children were more likely to have behavior problems than children who achieved early stability across every level of risk for instability. Among low-risk children, the probability of behavioral problems among early stabilizers was 22%, compared to 36% among unstable children, showing a 63% increase in behavior problems due to instability alone. CONCLUSIONS. Children in foster care experience placement instability unrelated to their baseline problems, and this instability has a significant impact on their behavioral well-being. This finding would support the development of interventions that promote placement stability as a means to improve outcomes among youth entering care.
Global Production Networks, Offshore Services and the Branch-Plant Syndrome

Kleibert J. M. Global production networks, offshore services and the branch-plant syndrome, Regional Studies. This article combines the global production network (GPN) framework with the branch-plant economy literature to generate a set of indicators for a more nuanced understanding of the outcomes of foreign direct investment attraction for recipient regions. It adapts both literatures to the case of offshore services and empirically maps the position and power relations of business process outsourcing branch offices in the Philippines. A multi-sited case study shows the variegated outcomes of foreign branch office development. In particular, second-tier cities are characterized by a dependent position in the international division of labour, confirming some ideas of the branch-plant syndrome.
Energy-efficient neuromorphic computation based on compound spin synapse with stochastic learning

Recently, magnetic tunnel junction with in-plane magnetization (i-MTJ) has been exploited to behave as a binary stochastic synapse. However, it suffers from its limited level of synaptic weight, resulting in an inaccurate learning. In this work, a compound synapse that employs multiple perpendicular MTJs (p-MTJs) in series is proposed. It possesses an analog-like synaptic weight under weak programming conditions, which leads to a stochastic learning rule and low power consumption per synaptic event. By performing system-level simulations on the MNIST database, it has been demonstrated that such compound spin synapses can realize stochastic neuromorphic computation with high accuracy and low energy consumption.
Hedonic Price Effects of Pedestrian- and Transit-Oriented Development

Recent consumer surveys and demographic analyses have indicated a growing market for pedestrian- and transit-designed development. Theoretically, this market shift should be reflected in the price people are willing to pay for those styles of development. This article traces the literature that uses hedonic price methods for testing this hypothesis, either by assessing pedestrian/transit-design development holistically or by evaluating its component parts. The literature confirms that the market shift is, indeed, being capitalized into real estate prices and demonstrates that the amenity-based elements of transit-designed development play an important positive role in urban land markets, independent of the accessibility benefits provided by transit.