Miracle-dz/UniFAR-FTUs huggingface dataset:
Fax Cover Sheet

This paper examines empirically the volatility-volume relationship implied by various market microstructure models which associate movements in prices and trading volume with information, dispersion of beliefs and trading motives. Our unique dataset allows to investigate whether di¤erent types of traders (members vs non-members, institutional vs individual) have a positive or negative e¤ect upon volatility. Our empirical results show that surprises in non-member investors trading volume are positively related with volatility in most of the cases. These results are more reinforcing in the case of log-volume and generally consistent with existing theoretical and empirical evidence. As regards member investors, we primarily nd that unexpected volume is positively related to volatility, providing further support for the argument that informed rational speculators exacerbate volatility especially when noise traders follow positive feedback strategies. Another result of our study is that the coe¢ cients relating the unexpected component of open interest with volatility are uniformly negative, implying that an increase in open interest during the day lessens the impact of a volume shock in volatility. Finally, when we allow for time-to-maturity e¤ects, non-member institutional investors are not associated with any movement in volatility while surprises in open interest are associated with more volatility towards the end of the contract life. Keywords: futures markets; range-based volatility; nancial crisis; foreign investors; trading volume JEL classi cation: C32, C52, G12, G15. I thank Menelaos Karanassos, Andrea Carriero and George Kapetanios for their valuable suggestions. I have also bene ted from the comments given by seminar participants at Queen Mary University of London, University of York and Brunel University. *Address for correspondence: Aris Kartsaklas, Department of Economis and Finance, Brunel University, Kingston Lane, Uxbridge, Middlesex, UB8 3PH, UK; email: aris.kartsaklas@brunel.ac. uk, tel: +44(0)1895267259, fax: +44 (0)1895269770.
A census of dense cores in the Aquila cloud complex: SPIRE/PACS observations from the Herschel Gould Belt survey

We present and discuss the results of the Herschel Gould Belt survey (HGBS) observations in an ~11 deg2 area of the Aquila molecular cloud complex at d ~ 260 pc, imaged with the SPIRE and PACS photometric cameras in parallel mode from 70 μm to 500 μm. Using the multi-scale, multi-wavelength source extraction algorithm getsources, we identify a complete sample of starless dense cores and embedded (Class 0-I) protostars in this region, and analyze their global properties and spatial distributions. We find a total of 651 starless cores, ~60% ± 10% of which are gravitationally bound prestellar cores, and they will likely form stars inthe future. We also detect 58 protostellar cores. The core mass function (CMF) derived for the large population of prestellar cores is very similar in shape to the stellar initial mass function (IMF), confirming earlier findings on a much stronger statistical basis and supporting the view that there is a close physical link between the stellar IMF and the prestellar CMF. The global shift in mass scale observed between the CMF and the IMF is consistent with a typical star formation efficiency of ~40% at the level of an individual core. By comparing the numbers of starless cores in various density bins to the number of young stellar objects (YSOs), we estimate that the lifetime of prestellar cores is ~1 Myr, which is typically ~4 times longer than the core free-fall time, and that it decreases with average core density. We find a strong correlation between the spatial distribution of prestellar cores and the densest filaments observed in the Aquila complex. About 90% of the Herschel-identified prestellar cores are located above a background column density corresponding to AV ~ 7, and ~75% of them lie within filamentary structures with supercritical masses per unit length ≳16 M⊙/pc. These findings support a picture wherein the cores making up the peak of the CMF (and probably responsible for the base of the IMF) result primarily from the gravitational fragmentation of marginally supercritical filaments. Given that filaments appear to dominate the mass budget of dense gas at AV> 7, our findings also suggest that the physics of prestellar core formation within filaments is responsible for a characteristic “efficiency” for the star formation process in dense gas.
Effect of Rumination and Worry, Test Anxiety, and Academic Procrastination on Academic Achievement of Pakistani University Students

This study was performed to discover the influence of rumination and worry, test anxiety and procrastination on the educational attainment of the students of the university. The descriptive survey research method was used for conducting the research. The technique of stratified random sampling was used to select 400 students from the 7th and 8th semesters of fall, 2018 from four public sector universities of the Hazara Division. The ruminative responsive scale developed by Treynor, Gonzalez and Nolen-Hoeksema, (2003), Test anxiety developed by Nest and Diehl (1990), and Abu Ghazal (2012) scale of academic procrastination was adopted as data collection instruments. Regression analyses, coefficient of correlation, mean, and standard deviation was applied for the analysis of data. The results of the study found that test anxiety is greater among students of the university. It was established that rumination and worry, academic procrastination and test anxiety has a significant positive relationship among each other. Further, it was indicated that test anxiety and academic procrastination has significant impact on educational attainment.
Environmental correlates and associations of tuart (Eucalyptus gomphocephala) decline

Tuart (Eucalyptus gomphocephala DC.) is an ecologically and culturally important tree species that grows across a narrow 400 km long coastal belt, from the Sabrina River south of Perth, to Jurien Bay in the north. Unfortunately, Tuart is also a species under considerable threat due to clearing, lack of recruitment and canopy decline. Canopy decline is of particular concern, being increasingly reported throughout the Tuart distribution. Despite this, previous studies of Tuart have generally been limited to localised canopy decline events. This two-phased study firstly involved an assessment of Tuart canopy condition at 46 sites across the species distribution. At each study site the canopy condition of no less than 20 Tuart trees was assessed using estimations of canopy completeness, measures of canopy size reduction, and through the scoring of canopy condition indices. The second phase of the study involved collecting data on a wide selection of environmental factors considered to be important to canopy condition. These included factors of stand structure, understorey composition, landform (soil type, geology, topography, and geography), climate (gradients and change), hydrology (depth, depth change, and chemistry), fire regimes, pollution and anthropogenic disturbance (fragmentation and site disturbance). Assessment of canopy condition indicates that most the Tuart distribution has slight to moderate canopy decline, and is characterised by a mean canopy completeness of 70 percent. Most of this canopy decline is considered to be background (stand level) decline and likely to be a characteristic of the species. However, the lack of comparative studies using similar methodology makes the determination of the current state of Tuart canopy condition difficult. Long-term monitoring of Tuart canopy condition is therefore recommended to determine temporal trends in canopy condition. The main area of concern for Tuart conservation was found to be the Yalgorup region, where trees had typically less than 30 percent canopy completeness. Severe canopy decline in this region is similar to dieback reported in other eucalypt species from across Australia, that is, gradually receding canopy foliage leaving stag-headed trees and abundant epicormic foliage. Localised cases of
Self-Change in Facilitating Empowerment

Youth empowerment is a critical research area because it has implications for reducing adolescent mental health stigma while improving their life trajectory, engagement in treatment and meaningful opportunities, and increasing self-esteem. The present inquiry is derived from a larger study and strives to enhance knowledge of youth empowerment by using Frank’s rhetoric of self-change—a form of narrative analysis—to understand events and reactive experiences of illness as occasions for changing the self. This narrative approach facilitated the development of a youth empowerment process because of its ability to identify similar characteristics across the three cases of youths included in this analysis. Actively participating in age/developmentally appropriate activities put the adolescents on a trajectory towards attaining milestones in a timely manner coinciding with the developmental timeline of peers without mental health issues. Additional research is needed to understand how the identified factors promote empowerment among adolescents with mental health issues. Narrative research has implications for clinical social work because it illuminates strengths that can be beneficial in promoting positive interventions.
The Impact of Workplace Spirituality on Employee Performance: Evidence from Abu Dhabi University

The aim of this paper is to argue that workplace spirituality may have an impact on enhancing the performance of employees. Hence, it focuses on the ways through which workplace spirituality can boost performance. The paper proposes a theoretical model regarding the links between five elements of workplace spirituality (team’s sense of community, alignment between organizational and individual values, sense of contribution to the community, sense of enjoyment at work and opportunities for the inner life) and employee performance. The theoretic model is then tested empirically using a spiritual modelling partial least squares analysis of a survey data set of 145 observations, collected from members of the Abu Dhabi University community. The presence of workplace spirituality in an organisational environment is considerably connected to employee performance. An interesting observation made from this study is that there is a significant variance in employee performance as a function of an employee position.
Educational Protocol for Improving Mothers Practices on the Types of Fever in Zagazig City

Background: Fever is a common medical problem among children that always prompts mothers to seek medical care. Aim: To evaluate the effect of educational protocol for improving mothers’ practices on the types of fever in Zagazig City. Design: A quasi-experimental research design [pretest -posttest] was used. Setting : At Chiba MCH center, in Zagzig City. Sample: A purposive sample consisted of 96 mothers were chosen according to inclusion criteria. Tools: Three tools were used; Interview Questionnaire sheet, the mothers’ knowledge of fever, and mothers’ practice in management of their febrile child. Results : Showed that about 33.33% of the mothers aged between 35 and 40 years, about 72.91% of them were married, nearly 64.58% of them had work. Also, about 63.54% of them reported that they were from rural areas. Also, there were statistically significant totally improvements in the mothers' knowledge and practices regarding the focused problem at (p<0.001) in the post-protocol phase. There were highly statistically significant positive correlation between mothers’ total knowledge and practices pre and post-protocol (r =0.802, and 0.617) respectively. Conclusion: The applying of educational protocol among mothers was effective in enhancing their knowledge, and practices regarding types of fever and their management. Recommendation: Further educational protocols in the pediatric clinics or via mass media for mothers about fever should be implemented.
Microbial control of cotton pests. Part I: Use of the naturally occurring entomopathogenic fungus Aspergillus sp. (BC 639) in the management of Creontiades dilutus (Stal) (Hemiptera: Miridae) and beneficial insects on transgenic cotton crops

Abstract The development and adoption of transgenic (Bt) crops that express the Bacillus thuringiensis (Bt) toxin has reduced the use of synthetic insecticide on transgenic crops to target Helicoverpa spp. , the major insect pest of cotton in Australia. However, it has also increased the threat posed by sucking pests, particularly Creontiades dilutus (green mirid), which are unaffected by the Bt toxins in transgenic cotton crops. Here we report the efficacy of the entomopathogenic fungus Aspergillus sp. (BC 639) in controlling the infestation of transgenic cotton crops by C. dilutus and promoting interactions of transgenic cotton with beneficial insects. The results showed that the number of C. dilutus adults and nymphs recorded on plots treated with 1000, 750, 500, 250 ml/ha BC 639 fungus formulation were the same as on plots treated with the recommended concentration of the commercial insecticide Fipronil. The fungus was found to have minimal effect on predatory insects compared with Fipronil and was most effective against C. dilutus when applied at the rate of 500 ml/ha (equivalent to 50 g spores/ha). At this rate, the fungus was as effective as Fipronil for controlling C. dilutus populations and ensured the survival of predatory beetles, lacewings and spiders compared with Fipronil treatment. The yield from fungus-treated plots was 5.24 bales per acre compared with 5.40 and 3.88 bales per acre for Fipronil-treated and unsprayed plots, respectively. The ability of the BC 639 strain to control C. dilutus infestations of transgenic cotton crops while conserving beneficial insect populations suggests its potential for supplementing integrated pest management programs to reduce the use of synthetic insecticides for transgenic cropping systems.
Assessing the Impact of Social and Demographic Factors on Female Entrepreneurial Intention in Pakistan: GEM Data Evidence

The major endeavor of this research paper is to assessing the impact of Social and Demographic Factors on Female Entrepreneurial Intention in Pakistan because women constitute 50% of the population of Pakistan. Data for research paper was acquired from the database of GEM 2012 APS Global Individual Level. The female entrepreneurial intention was a dependent variable while demographic perceptions, Socio-cultural perceptions, Individual perceptions, and Perceptions of economic opportunities were independent variables. Four logistic regressions were employed to test ten hypotheses. Model 01 revels that the role model and self-efficacy have a significant and positive effect on EIs while, surprisingly, fear of failure was also found significant predictor of female entrepreneurship in Pakistan. The results of Role model, Self-efficacy and Perception of Economic Opportunities are positive and significant predictors of EIs among females. From Socio-Cultural Perceptions, Career Choice and News in Media have a negative and insignificant relation with EIs while, status and Respect perception has been found strong predictors of EIs among Pakistani females. Model 4 includes demographic variables of age, occupation and education. All perceptions (age, education and occupation) have negative impact on female EIs. In order to promote female EIs, the Government of Pakistan has to play an instrumental role in promoting entrepreneurial environment in country. In this connection, female-specific training programs, business support centers, promoting successful female entrepreneurs through print and electronic media are some common areas where GoP can work, and finally, making a conducive environment when females can run their business indecently.
Digital Marketing Tools In The Value Chain Of An Innovative Product

: Innovative development is relevant for companies and organizations of any scale and any specificity. Global trends, such as the advent of breakthrough technologies, digitalization and the acceleration of the product life cycle, are leading to radical changes in most industries. Value chains are changing, profitability zones are shifting, new players are appearing, and this fundamentally changes the balance of forces in industries, significantly accelerating the implementation of new ideas and developments. The frequency of new opportunities and threats, as well as the speed of their penetration into markets, continues to increase. Every year, new technologies penetrate our lives faster and faster, and companies have less time to implement them. Innovative products are a specific product on the market. The difficulties in perceiving new developments, especially those that form unique needs or replace existing goods and technologies, do not immediately allow us to organize a normal process of communication with potential consumers. This is mainly due to the formation of barriers for consumers to perceive new products, to overcome which unique methods are needed. The expansion of traditional marketing with digital marketing tools dramatically facilitates the task of exploring a new product, studying demand and promoting an innovative product. This article is devoted to the analysis of marketing and innovation activity at the stages of the value chain and the role of digital marketing in the value chain.
Electrocardiographic Abnormalities in Adults with Sickle Cell Anaemia

Introduction: Sickle cell anaemia is a monogeneic hereditary disease that manifests as a lifelong multisystemic disorder characterized by periods of relatively stable health punctuated by periods of acute ill health, mostly possibly reversible and an accumulation of chronic complications, mostly irreversible affecting various organ systems with an outcome of persistent morbidity, and the risk of premature mortality. The aim of this study is to identify electrocardiographic changes typical to patients with Sickle cell anaemia (SCA). Method: Fifty three SCA patients and fifty three apparently healthy, age and sex matched adults HbAA subjects were recruited in this case control study. Individuals with other cardiovascular risk factors were excluded from the study. All recruited individuals were evaluated using electrocardiography. Result: There was left and right atrial abnormality in 7.4% and 3.8% of the SCA patients respectively while shortened PR interval was identified in 1.9%. First degree atrioventricular block was noted in 3.8% while features of Right bundle branch block (RBBB) and left bundle branch block (LBBB) were found in 3.8% and 1.9% of SCA patients respectively. Both Left and Right Ventricular hypertrophy with significant ST-T wave changes in the anterior and inferior leads were also observed in the SCA patients (p=0.001). Prolonged QTc was also identified in 20.8% SCA patients (p=0.02). CONCLUSION: Varied ECG abnormalities are common in SCA patients which may contribute to sudden death. Early ECG findings make for timely intervention towards prevention of disease progression.
Integrative Gamification Technique In Teaching Specialization Courses In Mathematics

One of the theories to improve Mathematics performance is by the integration of fun while learning, to name one Yadav (2015) conducted a play-way method resulted to students’ learning mathematics clearly and easily. By this, the study sought to determine the significant differences on the perceived use of Gamification Technique (GT) when grouped according to sex, age, year level, and Mathematics course. Also, it sought to determine the relationship of the Mathematics performance in the four areas of GT namely; academic achievement, cooperation, behavior and familiarization of nonvirtual Filipino Modified Games. The relationship of its integration in general when the four areas were combined is also tested. The researcher made use of the multiple randomized block action research design. The researchers surveyed the proportional stratified randomly selected 181 college students. Appropriate Statistical tools were then used and revealed an extreme positive perception towards GT. As to sex prof ile, only cooperation while as to age, only academic achievement area were revealed significant. These mean that male, 21 to more than 23 years old had a more positive view compared with female and 18 to 20 years old. A significantly different conclusion in all four areas of GT was reflected in first, second, third and fourth year students. Such four areas were all significantly different in College, Advanced and Abstract Algebra, Plane, Solid and Modern Geometry, and Plane Trigonometry courses. A positive correlation in all areas to Mathematics performance of the students was revealed. Generally, the use of GT is a way of innovating teacher’s instruction in improving students’ Mathematics performance. However, limitations on the use of GT were seen in abstract mathematics concepts and subject for its further improvement.
A novel exopolysaccharide produced by Lactobacillus coryniformis NA-3 exhibits antioxidant and biofilm-inhibiting properties in vitro

Background Exopolysaccharides (EPSs) secreted from lactic acid bacteria are carbohydrate polymers with reported biological activities. In this study, we extracted and characterized the composition as well as antioxidant and biofilm-inhibitory properties of EPS from Lactobacillus coryniformis NA-3 isolated from northeast Chinese sauerkraut (Suan Cai). Methods Lactobacillus coryniformis NA-3 was identified with 16S rDNA amplification and Neighbor Joining (NJ) phylogenetic analysis. EPS derived from Lactobacillus coryniformis NA-3 (EPS-NA3) was analyzed, including compositions by high-performance liquid chromatography (HPLC), functional groups by Fourier-transform infrared spectroscopy (FT-IR) and glycosidic bond configuration by Hydrogen-1 Nuclear Magnetic Resonance (1H NMR). Antioxidant activity of EPS was evaluated with hydroxyl and superoxide radical-scavenging. Anti-biofilm activities of EPS-NA3 were checked through inhibition and dispersion. Results The monosaccharide composition of EPS included α-rhamnose, α-mannose, α-galactose, and α-glucose in a ratio of 2.6:1.0:5.0:3.3. The free radical-scavenging abilities of EPS-NA3 were 37.77% ± 1.56% and 78.87% ± 3.07% on hydroxyl and superoxide reactive oxygen species respectively. Moreover, EPS-NA3 attenuated the formation of Bacillus cereus and Salmonella typhimurium biofilms by inhibition ratios of approximately 80% and 40% respectively. Additionally, treatment with EPS-NA3 dispersed established biofilms of B. cereus and S. typhimurium by approximately 90% and 20% respectively. Conclusion These results suggest that EPS-NA3 may be developed as antioxidant and anti-biofilm agents for industrial and clinical applications due to its capacity of scavenging free radicals, inhibition of bacterial biofilm formation, and dispersion of established biofilms.