Miracle-dz/UniFAR-FTUs huggingface dataset:
Do institutional trades stabilize the retail investor dominated market

Using a unique daily database, we investigate the short-run dynamic relation between institutional trades and stock price volatility in an individual investor dominated emerging market. We document a significant negative volatility-institutional trading relation in the emerging Chinese market. This negative relation is more pronounced for unexpected institutional imbalance and buy. Institutional trades stabilize the market at the lows and do not destabilize the market at the highs. Second, we find that institutional investors are prudent and more likely to invest in large and less risky stocks. Institutional investors herd in trading, but their herding behavior is largely limited to large stocks; and they do not systematically engage in feedback trading. Institutions also time volatility and trade less when volatility is high. Finally, institutional trading is persistent and more strongly related to lag institutional demand than lag returns. Overall, trading of the better-informed, prudential, and more rational institutional investors tends to stabilize stock prices in the retail investor dominated Chinese market. JEL classification: G1, G12, G23
The survey of perceived organisational support: Which measure should we use?

The psychometric properties of the original 36-item Survey of Perceived Organisational Support (SPOS) was examined along with a variety of shorter versions currently in use (16 items, eight items and three items). Factor analysis of the original SPOS measure is supportive of the original finding that the SPOS is unidimensional. Correlations among factor scores and SPOS scale scores suggest that either the eight-item or 16-item version would be just as effective as the 36-item version but even more efficient. Convergent validity results also indicate similar proportions of variance in versions of SPOS scores accounted for by selected organisational variables.
Tracking Trajectory Using Iterative Learning Control

In this paper, Iterative Learning Control approach for tracking trajectory is presented. The paper includes a general introduction to ILC and a technical description of the methodology. Iterative learning control (ILC) is a learning technique used to improve the performance of systems that execute the same task multiple times. Learning transient behavior has emerged as an important topic in the design and analysis of ILC systems. Given a desired trajectory to be followed, the proposed learning algorithm improves the system performance from trail to trail by exploiting the experience gained from previous repetitions. Taking advantage of the a-priori knowledge about the systems dominating dynamics, a data-based update rule is derived which adapts the feedforward input signal after each trial. Different (nonlinear) performance objectives can be specified defining the overall learning behavior. Finally, the proposed algorithm is successfully applied to improve system performance and also to track exactly the given trajectory.
The Essence of Military Group Cohesion

In July 2006,Armed Forces & Society published an article by Anthony King, “The Word of Command: Communication and Cohesion in the Military. ” This commentary takes exception to certain statements and conclusions in King's article, and in the process, sketches a standard model of military group cohesion. This model is based on social integration in the military and is composed of both primary group cohesion (peer and leader bonding) and secondary group cohesion (organizational and institutional bonding). The essence of peer bonding is given as social relationships based on trust and teamwork. The standard model is presented as a tool to sensitize ethnographers about what to look for when observing military interactions and to help them interpret what they see.
"They Tell You What to Do and Then They Let You Get on with It": The Illusion of Progressivism in GNVQ.

Abstract In this article, I draw upon data from a recently completed research project in order to examine young people's experiences of a variety of GNVQ courses. In the opening section, I attempt to locate some of the ideological foundations of GNVQ. Second, I focus upon the knowledge and learning experiences which constitute GNVQ curricula as I explore some footholds for critique. Drawing from this, and finally, I offer a tentative appraisal of GNVQ as it operates today.
Arterial wall thickness is associated with prevalent cardiovascular disease in middle-aged adults. The Atherosclerosis Risk in Communities (ARIC) Study.

BACKGROUND AND PURPOSE This study was done to assess the relationship between prevalent cardiovascular disease and arterial wall thickness in middle-aged US adults. METHODS The association of preexisting coronary heart disease, cerebrovascular disease, and peripheral vascular disease with carotid and popliteal intimal-medial thickness (IMT) (measured by B-mode ultrasound) was assessed in 13,870 black and white men and women, aged 45 to 64, during the Atherosclerosis Risk in Communities (ARIC) Study baseline examination (1987 through 1989). Prevalent disease was determined according to both participant self-report and measurements at the baseline examination (including electrocardiogram, fasting blood glucose, and medication use). RESULTS Across four race and gender strata, mean carotid far wall IMT was consistently greater in participants with prevalent clinical cardiovascular disease than in disease-free subjects. Similarly, the prevalence of cardiovascular disease was consistently greater in participants with progressively thicker IMT. The greatest differences in carotid IMT associated with prevalent disease were observed for reported symptomatic peripheral vascular disease (0.09 to 0.22 mm greater IMT in the four race-gender groups). CONCLUSIONS These data document the substantially greater arterial wall thickness observed in middle-aged adults with prevalent cardiovascular disease. Both carotid and popliteal arterial IMT were related to clinically manifest cardiovascular disease affecting distant vascular beds, such as the cerebral, peripheral, and coronary artery vascular beds.
Quantitative phosphoproteomic analysis reveals system-wide signaling pathways downstream of SDF-1/CXCR4 in breast cancer stem cells

Significance Tumor metastasis is the major cause of cancer lethality, whereas the underlying mechanisms are obscure. Breast cancer stem cells (CSCs) are essential for breast cancer relapse and metastasis and stromal cell-derived factor 1 (SDF-1)/chemokine (C-X-C motif) receptor 4 (CXCR4) is a key regulator of tumor dissemination. We report a large-scale quantification of SDF-1/CXCR4–induced phosphoproteome events and identify several previously unidentified phosphoproteins and signaling pathways in breast CSCs. This study provides insights into the understanding of the mechanisms of breast cancer metastasis. Breast cancer is the leading cause of cancer-related mortality in women worldwide, with an estimated 1.7 million new cases and 522,000 deaths around the world in 2012 alone. Cancer stem cells (CSCs) are essential for tumor reoccurrence and metastasis which is the major source of cancer lethality. G protein-coupled receptor chemokine (C-X-C motif) receptor 4 (CXCR4) is critical for tumor metastasis. However, stromal cell-derived factor 1 (SDF-1)/CXCR4–mediated signaling pathways in breast CSCs are largely unknown. Using isotope reductive dimethylation and large-scale MS-based quantitative phosphoproteome analysis, we examined protein phosphorylation induced by SDF-1/CXCR4 signaling in breast CSCs. We quantified more than 11,000 phosphorylation sites in 2,500 phosphoproteins. Of these phosphosites, 87% were statistically unchanged in abundance in response to SDF-1/CXCR4 stimulation. In contrast, 545 phosphosites in 266 phosphoproteins were significantly increased, whereas 113 phosphosites in 74 phosphoproteins were significantly decreased. SDF-1/CXCR4 increases phosphorylation in 60 cell migration- and invasion-related proteins, of them 43 (>70%) phosphoproteins are unrecognized. In addition, SDF-1/CXCR4 upregulates the phosphorylation of 44 previously uncharacterized kinases, 8 phosphatases, and 1 endogenous phosphatase inhibitor. Using computational approaches, we performed system-based analyses examining SDF-1/CXCR4–mediated phosphoproteome, including construction of kinase–substrate network and feedback regulation loops downstream of SDF-1/CXCR4 signaling in breast CSCs. We identified a previously unidentified SDF-1/CXCR4-PKA-MAP2K2-ERK signaling pathway and demonstrated the feedback regulation on MEK, ERK1/2, δ-catenin, and PPP1Cα in SDF-1/CXCR4 signaling in breast CSCs. This study gives a system-wide view of phosphorylation events downstream of SDF-1/CXCR4 signaling in breast CSCs, providing a resource for the study of CSC-targeted cancer therapy.
The Emergence of a Transnational Social Formation and The Mirage of Return Migration Among Dominican Transmigrants

Using a transnational perspective, this article analyzes the soriocul‐tural and political transformation of US‐Dominican transmigrants who have relocated to the Dominican Republic as one step in their transnational journey. Transmigrants and their society of origin have forged a dense web of transnational relations that unites them in a continuous transterritorial social formation. This formation is evident in the incessant back and forth traveling and multidirectional exchanges of material and intangible resources and symbols between the US and the DR. Transmigration has spread people's lives across national borders and generated a transnational habitus. Thus, even transmigrants who resettle in the DR maintain enduring transnational relationships. However, instead of being a social equalizer that empowers all migrants alike, transnational migration tends to reproduce and even exacerbate class, gender, and regional inequalities. Finally, internal and transnational migration seem to form a single system co.
Children's Evaluations of Retaliatory Aggression Against Siblings and Friends

Using vignettes, we examined children's judgments about aggressive retaliation against siblings and friends. We studied the role of relationship as it interacts with the type of retaliation depicted in the story, the age relationship of the story characters, and the intentionality of the initial aggression, as well as the respondent characteristics of gender and aggressiveness. Physical and verbal retaliation generally were considered most wrong when directed at a younger sibling; when the retaliation involved property damage such aggression was considered least wrong. Children, as expected, rated retaliation against an accidental aggressor as more wrong than against an intentional aggressor, regardless of relationship. There were also no overall gender differences in judgments of retaliation against siblings and peers. However, aggressive girls rated retaliation against siblings less severely than less aggressive girls. Judgments of retaliation among boys were unrelated to level of aggression. The findings are discussed in relation to previous literature on sibling conflict and family violence.
Learning networks, crowds and communities

Who we learn from, where and when is dramatically affected by the reach of the Internet. From learning for formal education to learning for pleasure, we look to the web early and often for our data and knowledge needs, but also for places and spaces where we can collaborate, contribute to, and create learning and knowledge communities. Based on the keynote presentation given at the first Learning Analytics and Knowledge Conference held in 2011 in Banff, Alberta, this paper explores a social network perspective on learning with reference to social network principles and studies by the author. The paper explores the ways a social network perspective can be used to examine learning, with attention to the structure and dynamics of online learning networks, and emerging configurations such as online crowds and communities.
Bimodal bilingual language development in a hearing child of deaf parents

ABSTRACT This study examined the spoken English development of a hearing child of deaf parents who used American Sign Language (ASL). The child first learned ASL in interactions with his parents and later developed spoken English outside the home environment. It was hypothesized that the child's acquisition of spoken English would systematically reflect both expected monolingual developmental patterns and interlinguistic transfer. Four areas of mismatch between ASL and spoken English were identified. Language sample data from ages 2;9–5;2 were examined for evidence to evaluate the hypotheses. Features that reflected the simultaneous versus sequential mismatch between ASL and English, undifferentiated versus differentiated aspects, free versus bound morpheme mechanisms, and word-order differences provided evidence of ASL influence on spoken English acquisition. Although not extensive, ASL appears to have exerted consistent influence on several areas of the child's spoken English development.
Hypoxic Pulmonary Vasoconstriction in Humans

Hypoxic pulmonary vasoconstriction is the elegant theory put forward more than six decades ago to explain regional variations in perfusion within the lung in certain animal species in response to localised restrictions in oxygenation. Although considerable progress has been made to describe the phenomenon at the macroscopic level and explain it at the microscopic level, we are far from a universal agreement about the process in humans. This review attempts to highlight some of the important evidence bases of hypoxic pulmonary vasoconstriction in humans and the significant gaps in our knowledge that would need bridging.
Meeting Satisfaction for Technology-Supported Groups

Research shows that people who feel dissatisfied with a technology-supported meeting may discontinue use of such technology, even if it provides demonstrable benefits. It is therefore important to derive theoretical understandings of the satisfaction phenomenon. This article validates an instrument that measures the constructs of a goal-attainment model of meeting satisfaction. It then tests the model among 237 working professionals in 19 groups in the field. Results support the propositions that satisfaction with meeting process and satisfaction with meeting outcome are both a function of an individual's perceived net goal attainment with respect to the meeting. The results also support a proposed link between satisfaction with meeting outcome and satisfaction with meeting process. The authors discuss the implications of these findings for research and practice.
Probing for the Multiplicative Term in Modern Expectancy-Value Theory: A Latent Interaction Modeling Study.

In modern expectancy--value theory (EVT) in educational psychology, expectancy and value beliefs additively predict performance, persistence, and task choice. In contrast to earlier formulations of EVT, the multiplicative term Expectancy × Value in regression-type models typically plays no major role in educational psychology. The present study used latent moderated structural equation modeling to explore whether there is empirical support for a multiplicative effect in a sample of 2,508 students at the end of secondary education. Expectancy and four facets of value beliefs (attainment, intrinsic, and utility value as well as cost) predicted achievement when entered separately into a regression equation. Moreover, in models with both expectancy and value beliefs as predictor variables, the expectancy component as well as the multiplicative term Expectancy × Value were consistently found to predict achievement positively.
Differences between low and high achieving distance learners in locus of control and metacognition

A total of 712 students of the Open University of Hong Kong (OUHK) – sampled from high achievers and low achievers, as defined by their performances in their overall course scores in four consecutive semesters — participated in the study. An instrument, the Survey of Students’ Study Preferences and Habits, developed and validated for the study was also used to collect data from the students who participated. The data collected through this instrument were complemented with in‐depth telephone interviews using a sub‐set of 32 from the main study sample. The analysis of the data, using both qualitative and quantitative methods which included descriptive and inferential statistics, showed very interesting patterns of differences in locus of control and the use of mctacognitivc strategics by low achievers and high achievers. For instance, high achievers rated themselves significantly higher than low achievers (p <. 01) in a number of scales such as confidence with studies, ability to cope well with studying in.
Changes of melanosome morphology associated with the differentiation of epidermal melanocytes in slaty mice

The slaty (Dctslt) mutation is known to reduce the activity of dopachrome tautomerase, which converts dopachrome to 5,6‐dihydroxyindole‐2‐carboxylic acid in the pathway of eumelanin synthesis and to inhibit melanosome maturation in melanocytes. However, it is not known whether the inhibition of melanosome maturation in slaty melanocytes is developmentally regulated. To address this point, changes in the morphology and maturation of melanosomes in cultured epidermal melanocytes derived from newborn mice of wild‐type (black) and slaty mutant were surveyed under the electron microscope. In black melanocytes (Dct+), almost all melanosomes were elliptical stage IV melanosomes. However, in slaty melanocytes, numerous spherical stage III melanosomes with globular depositions of pigment in addition to elliptical stage III melanosomes with intraluminal fibrils were observed. Mixed‐type melanosomes containing both globular deposition and intraluminal fibrils of pigment were also observed. In slaty melanocytes, spherical and mixed‐type melanosomes were gradually decreased after birth, whereas elliptical melanosomes were gradually increased. Stage IV melanosomes were very few in slaty melanocytes, and the number did not increase after birth. These results suggest that the slaty mutation blocks the melanosome maturation at stage III and affects the melanosome morphology (elliptical or spherical) in a developmental stage‐specific manner. Anat Rec, 2007. © 2007 Wiley‐Liss, Inc.
The Governance of Cooperatives and Mutual Associations: A Paradox Perspective

This paper presents a new theoretical framework for understanding the governance of co-operative and mutual organisations. The theoretical literature on the governance of co-operatives is relatively undeveloped in comparison with that on corporate governance. The paper briefly reviews some of the main theoretical perspectives on corporate governance and discusses how they can be usefully extended to throw light on the governance of co-operatives and mutuals. However, taken individually these different theories are rather one dimensional, only illuminating a particular aspect of the board's role. This has lead to calls for a new conceptual framework that can help integrate the insights of these different theories. The paper argues that a paradox perspective offers a promising way forward. Contrasting the different theoretical perspectives highlights some of the important paradoxes, ambiguities and tensions that boards face. Copyright CIRIEC, 2004.
There’s been too Much Secrecy in this City”: The False Choice between Secrecy and Transparency in US Politics

While the choice between secrecy and transparency has political and cultural salience, this paper questions the logic of such an opposition. Through a consideration of the different attitudes towards secrecy embedded in the Bush and Obama administrations, this paper argues that both positions fail to understand their own relation not only to secrecy itself, but also to each other. They are caught, that is, within the same commonsensical idea of the secret: one that assumes the secret is secreted away, waiting to be exposed. By introducing a third term – Jacques Derrida’s “unconditional secret,” a structuring secrecy beyond the logic of revelation – this article questions transparency’s link with democracy and its cultural place today as a force of good. Through Derrida’s work we must face the proposition that although the choice between secrecy and transparency is presented as one between lesser and greater democracy, both are in fact beholden to democracy’s enemy: totalitarianism. This article ends by asking what a post-secret politics might look like.
Family Violence Research Methodology and Design

Research on family violence is in its early days. The quality of research is uneven, and findings are often inconsistent. Better studies and more accurate data are needed to improve our understanding of family violence and to develop more effective prevention and control strategies. Unfortunately, insufficient attention has been given to methodological issues that need to be investigated and resolved before more valid and reliable estimates of the prevalence and correlates of family violence can be expected. Definitional problems include wide variations in the boundaries of the domain of family violence and in the elements of definitions. Crucial methodological problems that affect research findings on family violence include issues related to the research context, data sources, sample characteristics, research designs, and measures and their validity.
Routes for Campylobacter contamination of poultry meat: epidemiological study from hatchery to slaughterhouse

From April 1998 to March 2000, 18 broiler flocks were followed from the hatchery to the slaughterhouse. Campylobacter was not found in the hatchery, 1-day-old chicks or in the rearing house before the arrival of the chicks. The infection of broiler flocks increased continuously during the rearing time, with a total of seven positive flocks at the end of rearing. Farms with Campylobacter-positive broilers were characterized by the circulation of Campylobacter in the environment (puddles, dung hill) and on the footwear of the farmer. The administration of antibiotics did not significantly reduce Campylobacter shedding. With the exception of one flock during rearing and a few flocks in the slaughterhouse with a mixed Campylobacter coli–Campylobacter jejuni infection, C. jejuni exclusively was found both during rearing and on the carcasses. A significant correlation exits between the contamination of the broilers during rearing and the carcasses after processing. No slaughterhouse was able to avoid contamination of carcasses when status-positive animals were delivered. Moreover, six negatively delivered flocks yielded positive carcasses, the result of a supplementary contamination, which occurred during transport and slaughtering.