Miracle-dz/UniFAR-FTUs huggingface dataset:
The Leadership Molecule Hypothesis: Implications for Entrepreneurial Organizations

The topic of leadership in entrepreneurial organizations has received relatively little attention. The prevailing view is that leadership is an individual phenomenon. This paper proposes that the conventional notion of a "single heroic leader" in companies is an inadequate explanation how leadership actually works in entrepreneurial organizations as they evolve over time. Although it might appear that there is a single charismatic leader who determines the success of a company; if we look more closely there is typically a "core leadership team" (in the true sociological sense) with defined but overlapping and complementary roles. Specifically, this team is actually performing five key "strategic leadership functions" (defined below) as a collective unit rather than as a set of individuals. This team of leaders has been termed "the Leadership Molecule" (Flamholtz and Randle, 2008). This article addresses some key issues concerning leadership in entrepreneurial businesses: What are the core tasks of leadership in rapidly growing entrepreneurial businesses? Do leadership requirements change as a company grows and develops? If requirements do change, then how does leadership need to evolve at different stages of entrepreneurial growth? Can leadership in entrepreneurial firms continue to be exercised by a single individual as a company grows, or if not then what "form of leadership" is required? It also provides some empirical support for the proposed construct of the Leadership Molecule based on a study of entrepreneurial leaders in China.
Miniaturized spectacles shaped tapered slotted patch antenna for UWB applications

A compact planner patch ultra-wideband (UWB) antenna is presented in this paper. The antenna configuration consists of a spectacles-shaped patch and a slotted ground plane. Different parameters are investigated for improving the antenna’s properties and for achieving the preferred UWB band (3.1–10.6 GHz). The experimental and simulated results demonstrate that the proposed antenna acquires an operating bandwidth of 117% (3–11.5 GHz) with a stable omnidirectional radiation pattern, about 89% of average radiation efficiency and 4.2 dBi of average gain with the maximum of 5.7 dBi at 10.2 GHz. Keywords— patch antenna, tapered ground, UWB, wireless communication
An UAV scheduling and planning method for post-disaster survey

Abstract. Annually, the extreme climate and special geological environments lead to frequent natural disasters, e.g., earthquakes, floods, etc. The disasters often bring serious casualties and enormous economic losses. Post-disaster surveying is very important for disaster relief and assessment. As the Unmanned Aerial Vehicle (UAV) remote sensing with the advantage of high efficiency, high precision, high flexibility, and low cost, it is widely used in emergency surveying in recent years. As the UAVs used in emergency surveying cannot stop and wait for the happening of the disaster, when the disaster happens the UAVs usually are working at everywhere. In order to improve the emergency surveying efficiency, it is needed to track the UAVs and assign the emergency surveying task for each selected UAV. Therefore, a UAV tracking and scheduling method for post-disaster survey is presented in this paper. In this method, Global Positioning System (GPS), and GSM network are used to track the UAVs; an emergency tracking UAV information database is built in advance by registration, the database at least includes the following information, e.g., the ID of the UAVs, the communication number of the UAVs; when catastrophe happens, the real time location of all UAVs in the database will be gotten using emergency tracking method at first, then the traffic cost time for all UAVs to the disaster region will be calculated based on the UAVs’ the real time location and the road network using the nearest services analysis algorithm; the disaster region is subdivided to several emergency surveying regions based on DEM, area, and the population distribution map; the emergency surveying regions are assigned to the appropriated UAV according to shortest cost time rule. The UAVs tracking and scheduling prototype is implemented using SQLServer2008, ArcEnginge 10.1 SDK, Visual Studio 2010 C#, Android, SMS Modem, and Google Maps API.
INFLUENCE OF COSOLVENTS ON THE ABSORPTIVE CLEARANCE OF KETOTIFEN FUMARATE FROM RABBIT INTESTINE, IN-SITU

Objective: Investigate the effect of ethanol, polyethylene glycol 400, propylene glycol, glycerol and sorbitol on the absorptive clearance of ketotifen fumarate in the rabbit. Methods: In-situ intestinal perfusion technique, through and through was used for estimation of membrane transport parameters of ketotifen fumarate from duodenum, jejunum, ileum and ascending colon in the rabbit. These parameters include absorptive clearance per unit length PeA/L (ml/min.cm), percentage fraction absorbed per unit length (% Fa/cm) and anatomical length that required for complete absorption in specific segment (L95%). Results: The absorption was in the order ascending colon> duodenum > jejunum> ileum; where the absorptive clearance normalized to intestinal segment length PeA/L (ml/min.cm) was 0.0071 ± 0.0003, 0.0058 ± 0.0001, 0.0051 ± 0.0001, and 0.0047 ± 0.0001 in each segment respectively. The effect of cosolvents in jejunum was in the order; ethanol 15% >glycerol 30% > propylene glycol (PG40%) > polyethylene glycol400 (PEG-400 40%) >sorbitol 40%, Where the absorptive clearance normalized to intestinal segment length PeA/L (ml/min.cm), mean ± SE was: 0.0142 ±0.0011, 0.0086 ± 0.0002, 0.0075 ± 0.0003, 0.0022 ± 0.0001, and 0.0014 ± 0.0001 for each cosolvents respectively. The same order was obtained in the ascending colon. Conclusion: The enhancing action of the ethanol, propylene glycol and glycerol may be due fluidization of the cell membrane with a subsequent increase in transcellular absorption, while the inhibitory effect of polyethylene glycol and sorbitol could attributed to water secretion, H-bonding formation and reduced thermodynamic activity of drug molecules.
A predictive model to detect online cyberbullying

Cyberbullying is prevalent in most countries across the globe. The aim of this research was to develop a predictive model to identify the occurrence of cyberbullying tweets on Twitter. The paradigm shift in the Internet of Things was observed a decade ago, which resulted in enormous growth in the number of active Internet users. Today, this number has exceeded three billion. Social networking websites are classic examples of Internet applications that have large numbers of active users. Twitter, for instance, is one of the most famous social networking portals, with more than 300 million active users at any given time. However, unfortunately it is also a stage for users who are involved in unethical use of the Internet, such as cyberbullying. With such a staggering number of active users on the Internet, cyberbullying has become a widespread global phenomenon. It has extremely adverse effects on its victims. In some cases victims have committed suicide in response to the shame and hatred that is associated with cyberbullying. In this research, 1313 unique tweets were collected from Twitter. With the help of psychological studies referring to, the behavior of individuals and the use of dialects pertaining to verbal aggressiveness, 376 tweets were manually tagged as cyberbullying tweets in the first phase. In the next phase, every word in a tweet was individually categorised based on the pragmatics of language. In order to achieve this, tweets were categorised using Linguistic Inquiry and Word Count (LIWC), a psychometric evaluation tool that categorises text based on Linguistic Processes, Psychological Processes, Personal Concerns and Spoken Categories. Collectively, they add up to 67 sub-wordcategories. In the next step of the psychometric evaluation, LIWC calculated the degree to which different word-categories were used by people in cyberbullying. Psychometric evaluation therefore aided in effective text categorisation and quantifying the degree of word usage, which was observed to be a gap in previous studies. As a result, tweets were converted to a multi-dimensional attribute relational numeric dataset. This dataset was very rich in terms of the information that it carried. This dataset was then used to train machine learning classifiers in Weka to develop a predictive model to detect cyberbullying. The data was randomly segmented 66% for training the predictive model and 34% for testing it. It was seen that the Random Forest classifier built the predictive model with a precision value of 0.97, indicating that binary classifiers outperformed the multiclass classifiers in detecting cyberbullying tweets. 1 http://nobullying.com/amanda-todd-story/
Experiments and Models of Thermo-Induced Shape Memory Polymers

Recent advances in experiments and models of thermo-induced shape memory polymers (TSMPs) were reviewed. Some important visco-elastic and visco-plastic features, such as rate-dependent and temperature-dependent stress-strain curves and nonuniform temper- ature distribution were experimentally investigated, and the interaction between the mechanical deformation and the internal heat generation was discussed. The influences of loading rate and peak strain on the shape memory effect (SME) and shape memory degeneration of TSMPs were revealed under monotonic and cyclic thermo-mechanical loadings, respectively. Based on experimental observations, the capability of recent developed visco-elastic and visco-plastic models for predicting the SME was evaluated, and the thermo-mechanically coupled models were used to reasonably predict the thermomechanical responses of TSMPs.
Family resources and cognitive decline among elderly in Italy

Family ties may play an important role in the wellbeing of the elderly. In this paper, we examine the association between living arrangements and the cognitive decline among people over 65 in Italy in the hypothesis that living with others (i.e. children and/or spouse) vis –a- vis living alone may have positive effects on cognitive functioning. To this end we used data from the first two waves of the Survey of Health, Ageing and Retirement in Europe (SHARE), which provides five indicators of cognitive functions: orientation, memory, recall, verbal fluency and numeracy. Cognitive decline was measured considering the differences between the first and the second wave in each of these five indicators. Preliminary results reject the hypothesis of a protective effect of living with others. In particular, living with others during the old age seem to worse their cognitive abilities (at least in one dimension) more than living alone, net of other confounding covariates. Further analyses taking into account potential bias connected with selection provided by attrition between the first and the second wave confirm and strengthen these results, but only for elderly whose abilities was very poor at the first interview. The potential bias due to the “re-test effect” suggest that this effect could be even stronger for old people living with the spouse (a significant re-test effect was indeed found for couples regards verbal fluency and orientation).
Development of an allogeneic adherent stem cell therapy for treatment of ischemic stroke

To determine the potential for using stem cells in the treatment of ischemic injuries of the central nervous sys- tem, clinically relevant experiments were performed administering human adult adherent bone marrow derived stem cells into a rat model of ischemic stroke. Variables such as the requirement for immunosuppression, route of cell administration, window for therapeutic benefit and optimal cell dosage have all been examined in a series of relevant translational experiments in animals undergoing middle cerebral artery ligation stroke injury. Animals were tested for improvements in locomotor and neurological function at time points as late as 6 months post-cell transplantation and demonstrated sustained statistically significant benefit from a single dose of cells. Following sacrifice, immunohistochemistry was performed on tissues to determine stem cell engraftment and fate, as well as neuroprotection of endogenous tissue at the sites of ischemic injury. The results indicate locomotor and neu- rological improvement correlates with improved neuroprotection and limited retention of the transplanted stem cells, with limited neuronal fate. The observed benefit occurs in a cell dosage dependent fashion suggesting a pharmacological role for the cells when administered intravenously in these injury models.
Market Penetration of Competing New Technology: A Maximum Likelihood (MLE) Approach to Modeling the Emergence of the Electronic Ballasts

To study the market penetration of electronic ballasts, the authors started with a conventional Ordinary Least Squares (OLS) approach, tested different functional forms, and corrected for possible failures of the selected model. This study used the Autoregressive Conditional Heteroscedasticity (ARCH) and maximum likelihood estimation (MLE) modeling approach to generate a prediction scheme for electronic ballasts. ARCH has advantages over OLS models for explaining market penetration independent variables over time. Testing for autocorrelation and heteroscedasticity failures is crucial to modeling policy implications and studying impacts of regulatory mandates. The MLE approach has been used to model multiple-product competition for market share between products having extremely long lifetimes and market duration, such as coal or oil. The MLE approach is validated for products such as traditional durable goods of relevance to energy efficiency – in this case of electronic ballasts.
The association between type of confidant and depressive symptomology in a sample of Mexican youth

SUMMARY Background The current lifetime prevalence of depression among females in Mexico is 9.1% and 2.9% among males. The overall lifetime prevalence of depression is 6.2% among the general population of Mexico. Individuals that experience depressive symptomology at a young age are more likely to experience a depressive episode later in life. The risk of recurrence 24 months after the first episode of depression is 37.3%. There is scarce information about the prevalence of depression among adolescents in Mexico. However, a study of adults in Mexico City by Benjet et al. found that 2.8% of females and 1.1% of males experienced a depressive episode during adolescence. Research indicates that adolescents are especially vulnerable to mental and physical health problems. During the developmental transition, females are more vulnerable to these problems than males, including depression. The ways in which adolescents adapt and become adults can either protect or put them at risk for depressive symptomology and subsequent mental and physical disorders. The act of disclosure (talking to a confidant), which involves the sharing of personal thoughts and ideas with others, is an important mechanism through which adults and children form intimate relationships and develop good mental health. Objectives The objective of this study was to determine the association between type of confidant and depressive symptomology, and to identify some potential risk and protective factors of depression, including differences by gender, among a sample of Mexican youth. We hypothesized that not having a confidant would be associated with greater levels of depressive symptomology, and that this would differ by gender.
Characterization of Cellulose Degrading Bacterium, Bacillus megaterium S3, Isolated from Indigenous Environment

A cellulose degrading bacterium, identified as Bacillus megaterium S3 on the basis of biochemical and 16S rRNA ribotyping, was isolated from vegetable market, Lahore, Pakistan. It was screened by efficiently growing on carboxymethyl cellulose (CMC-Na), Congo red agar, and minimal salt medium containing filter paper. The most suitable temperature for the growth of B. megaterium S3 was found to be 45oC while the optimum growth pH was 7. B. megaterium S3 had a lag phase of 4 hours in LB medium while this phase prolonged to 6 hours in CMC- Na medium. B. megaterium S3 had shown maximum enzyme activity in extra-cellular assay (75%) as compared to intra-cellular assay (17%). The optimum temperature and pH for the crude enzyme activity were found to be 50oC and 8, respectively. Maximum crude enzyme extract (cellulase) activity was found in the presence of Zn ions. This alkali- thermophilic enzyme from B. megaterium S3 can be exploited for biotechnological and industrial applications.
Determinants of deforestation in Western Oromia region of Ethiopia: The case of Komto Forest

Deforestation and poverty are challenging problems in Ethiopia. The deforestation-poverty nexus is complicated by the institutional failures related to management of natural resources. This study was conducted to analyse the determinants of deforestation in Ethiopia, Western Oromia, the case of Komto Forest in East Wollega Zone, employing primary cross-sectional data on sampled households. Multistage sampling technique was used in selecting 150 household head respondents. Volume of woody biomass consumed and sold in cubic meter (M3) was used to measure deforestation. The Heckman maximum likelihood model estimates showed that large landholding size explain lower level of deforestation. It was also found that forest product sale, and corruption behaviour of households and staff of institution aggravates deforestation. Probability of forest product use is negatively related to kerosene use and positively to road access, purpose of use, and corruption perception. The study showed that poverty and institutional failure related to the forest management are key factors determining deforestation and forest degradation in the study area. Thus solving poverty and institutional failures would help solve deforestation problem of the study area. Key words: Deforestation, poverty, institutional failure, Heckman selection model.
Stepping into the Spotlight: Collaborative Efforts towards Musical Participation

This article presents findings from qualitative research which aimed to capture the experience and views of people who were supporting fourteen learners with intellectual disabilities (aged 12-18) to perform with a professional orchestra. Findings have been analysed in two stages. The first analysis, published elsewhere (Rickson 2012), focused on supporters’ experiences of organising and preparing for the performance. The supporters believed that through practising and performing an orchestral work the diverse musicians had the potential to challenge stereotyped portrayals of disability, change attitudes and foster the ongoing inclusion of people with diverse abilities. However, while the learners’ responses during preparatory workshops were described as interesting, meaningful and creative, there seemed to be a general perception that they were vulnerable and in need of protection from potentially unsympathetic audiences. This dichotomy was examined in postperformance interviews with supporters and audience members. Findings, presented here, show that the narrative of vulnerability and ‘overcoming’ persisted. Nevertheless, interviewees remained convinced of the artistic value of the work and believed the learners had the potential to attract wider audiences to their performances. Further opportunities for young people with intellectual disabilities to be involved in community arts projects alongside non-disabled musicians may result.
Physical, physiological and psychological fitness of independent active and non-active older female adults

Background. Aging represents period of life when human body undergoes great changes affecting people’s condition and overall health. The aim of the research was to determine differences of motor and functional abilities along with satisfaction and quality of life between active and non-active female older adults. Methods. Twenty-one elderly female adults were classified in two groups: thirteen active (mean age 66.54 ± 4.59 years ; mean height 158.08± 5.35 cm ; mean weight 75.47 ± 13.52 kg ; mean body mass index 30.18 ± 0.49 kg/m2 ) and eight non-active (mean age 71.81 ± 7.15 years ; mean height 160.55 ± 6.34 cm ; mean weight 74.40 ± 14.06 kg ; mean body mass index 28.84 ± 0.35 kg/m2 ) female adults. For the purpose of this study, all participants were asked to complete senior fitness test protocol prescribed by Rikli and Jones (2013), which consisted of eight tests: 30-second chair stand test, 30-second arm curl test, 2- minute step test, chair sit-and-reach test, back scratch test, 8-foot up-andgo test, height and weight. Along with that, participants filled in Croatian version of WHOQOL-BREF questionnaire (Pibernik-Okanovic, 2001) including four domains (physical health, psychological health, social environment and environment) with two additional questions about their satisfaction with health and their quality of life on the Likert scale ranging from 1to 5. The differences between active and non-active groups were examined using Man-Witney U-test. Significance was set at p . 05). Conclusion. This study showed that older female adults had better achievements in motor and psychological tests, which could be translated to better physical overall fitness and preparedness of doing everyday activities in comparison to non- active group. Research showed the importance of exercising in older age, but further studies on bigger samples need to be performed for better understanding of aging and differences in levels of fitness.