Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of Instructional Guidelines on Students, Practices Regarding Safe Use of Cell Phone

Cell phones are some of the most dynamic communications and seem to be mandatory devices for the modern age and life. The aim of this study was to evaluate the effect of instructional guideline on students’ practices regarding safe use of cell phone. Design: A quasi experimental study design was utilized, using purposeful subjects of a total number of 180 first year students, setting: Faculty of Nursing, Ain Shams University. Two tools were used to collect data; first, an interviewing questionnaire which includes three parts: 1) Demographic characteristics, number of cell phones, number of (SIM) and call duration. 2) Student’s level of knowledge related to this issue. 3) Practical questionnaire to assess student’s level of practical measures to reduce electromagnetic waves exposure from cell phone. Second tool, is a rating scale to assess student’s attitude regarding the use of cell phone. The results of the study revealed positive effect of instructional guidelines on improving students' level of knowledge, practices and attitude. The study recommended that guidelines instruction leaflets should be available for each person, using cell phone, and increasing health awareness about its probable hazards. [Hanan Shehata Mohamed, Magda Abd El Satar and Amal Talaat. Effect of Instructional Guidelines on Students, Practices Regarding Safe Use of Cell Phone. Life Sci J 2014;11(4):486-494] (ISSN:1097-8135). http://www.lifesciencesite. com. 72
The Influence of Solar and Longwave Radiations on the Airflow in Building Spaces

The airflow and thermal gain in building spaces are influenced by solar (shortwave) radiation, the environmental longwave radiation and the radiation of the internal walls of the building considered as gray bodies at different temperatures. In this paper an integrated model includes the influence of the above radiations is developed for simulation of the airflow in building spaces. For this purpose, two modeling approaches are used, the zonal network method for modelling of the building segments and the Computational Fluid Dynamics (CFD) solution for modelling of the inner airflow. A synchronize solution process is also used for the building and CFD equation-sets. Key-Words: Energy Simulation Integrated Modelling CFD Radiation Solar – Longwave
Stressful Life Events, Parental Verbal Aggression and Depressive Symptoms in Malaysian Adolescents: The Moderating Role of Parental Warmth

Depressive symptomatology is a serious mental health problem that has been observed among Malaysian adolescents. Hence, we conducted a cross-sectional study to identify the risk and protective factors for adolescent depressive symptoms. Specifically, we hypothesized that stressful life events, parental verbal aggression, and parental warmth are significantly associated with adolescent depressive symptoms. A sample of 1092 adolescents (13-19 years old; 447 boys and 645 girls) was recruited using probability proportional to size cluster sampling from 20 secondary schools in four states across Malaysia. Results of the multivariable logistic regression analysis revealed that stressful life events and maternal verbal aggression had significant main effects on depressive symptoms. In the moderation analyses, paternal warmth alleviated the influence of paternal verbal aggression on depressive symptoms. In contrast, both paternal and maternal warmth exacerbated the depressogenic impact of maternal verbal aggression. Such findings could improve prevention and intervention programs for combatting depressive symptoms in Malaysian adolescents.
Condensed tannins in sainfoin. II. Occurrence and changes during leaf development

A histological study examined condensed tannin (CT) formation in plant tissue samples taken from the meristematic area of very young sainfoin (Onobrychis viciifolia Scop.) seedlings and from leaflets sampled at various stages of development in mature plants growing in the greenhouse. Light and electron microscopy revealed no CT in the seedling meristem and leaf primordia, but CTs were seen very early in leaf development forming first in the vacuoles of discrete cells of the abaxial subepidermal layer when the leaflets were recognizable, but still folded. Immature leaflets collected from the growing point of a mature sainfoin plant show similar CT formation with the abaxial cell vacuoles filled with CT when the new leaves have reached the 90°-fold stage. As the leaflets unfold and mature, CTs begin to appear in the vacuoles of small, but discrete cells in the adaxial subepidermal layer while the tannin-containing cells in the abaxial subepidermal layer begin to lose CT. The CT continues to increase in the .
Exploring Difference in Gender Perceptions Towards Teacher's Motivational Behaviour in English Language Classroom

The role of a teacher is crucial for language learning specifically in English language classrooms. An important variable in this regard is the gender of students. This study investigates the impact of gender on language learning motivations of students studying at the undergraduate level in the City University of Science and IT and Institute of Management Sciences, Peshawar. Questionnaire data were collected from 175 students. The variables of the study include gender and its relationship with language attitudes and motivation. The results revealed that there exists the relationship between gender differences in variables under consideration. Female students had more expectations as compared to their male fellows. The study has useful pedagogical implications.
Can active late-type stars contribute to the Galactic lithium abundance?

Lithium abundances in our Galaxy and especially 6Li abundances provide important constraints on our understanding of Big Bang Nucleosynthesis (BBNS), stellar evolution and the creation of light elements by cosmic rays in the ISM. 6Li has been detected in energetic solar events, one chromospherically active binary and several dwarf halo stars. Continuing our work on active late-type stars with high lithium abundances, we expand our study to consider if the flare origin of lithium created by spallation can contribute significantly to the Galactic abundance of lithium. We previously derived 6Li7Li=0.030±0.010 for active K dwarf GJ 117 using VLT UVES observations. We find 6Li7Li ratios of 0.02 and 0.10 for two other stars in our sample, GJ 182 and EUVE J1145–55.3A, respectively. Considering that these later type, active stars have significant flare rates and stellar winds, we have estimated the contribution of these stars to the Galactic lithium abundance. Given that K and M stars comprise over 84% of our Galaxy and that many of these can have significant stellar winds, we conclude that spallation in stellar flares can contribute 1% and up to 5% of the Galactic lithium abundance.
Dissolved ATP turnover in the Bransfield Strait, Antarctica during a spring bloom

Ambient concentrations and turnover rates of dissolved adenosine triphosphate (D-ATP) were measured at 5 stations in the Bransfield Strait, Antarctica during the 1986-87 Research on Antarctic Coastal Ecosystem Rates (RACER) field program. The study area was pre-selected to include several different coastal and oceanic habitats expected to vary considerably in timing and magnitude of the annual spring phytoplankton bloom. D-ATP concentrations varied both spatially and temporally during the 4 mo of observation. Dunng the initial stages of bloom development, there was a signif~cant positive correlation between the concentration of particulate (P) ATP (i.e. biomass) and D-ATP; however, this relationship deteriorated later in the season. At the height of the spring bloom (January), we observed a D-ATP concentration gradient in excess of an order of magnitude for our coastal to open ocean transect. Dissolved ATP fluxes (uptake rate times ambient concentration; ng I-' d l ) were highly correlated with D-ATP concentrations, indicating that bloom conditions stimulated both production and removal processes. We assessed the potential role of 3 independent processes as a source of D-ATP in Antarctic coastal waters: excret~on/exudation, production during microor macrozooplankton grazing and cell death/autolysis. Results are most consistent w t h a model that includes phytoplankton release durlng active growth and metabolism as a major source of D-ATP in our study area.
Tumors as Elasto-Viscoplastic Growing Bodies

Tumor cells usually duplicate in a environment formed by other host cells, a deformable extra-cellular matrix and of extra-cellular liquid. Cells duplicate, reorganize and deform while binding each other through adhesion molecules that have a limited strength that can be measured. These observations motivate the multiphase mechanical model illustrated in the present work. The extracellular matrix is treated as an elastic compressible material, while, in order to define the relationship between stress and strain for the cellular constituents, the deformation gradient is decomposed in a multiplicative way distinguishing the contribution due to growth, to plastic rearrangement of the cells and to elastic deformation. On the basis of experimental results at a cellular level, it is proposed that a continuum level there exists a yield condition separating the elastic and viscoplastic regimes. Previously proposed models are obtained as limit cases, e.g. fluid-like models are obtained in the limit of fast cell re-organization and negligible yield stress. A test case is studied in detail showing how tumor growth can be influenced by stress, how and where it can generate plastic reorganization of the cells, how it can lead to capsule formation and compression of the sorrounding tissue.
Community Health Workers Engagement in Prevention of Mother-to-Child Transmission of HIV (PMTCT): A Cross-Sectional Study from Selected Fishing Communities in Tanzania

The prevalence of HIV infection is reported to be higher in fishing communities of Lake Victoria compared to non fishing neighboring communities. Besides, access to HIV/AIDS related services has been reported to be either inadequate or unavailable to some of these fishing communities particularly for those residing in islands. This study explored the engagement of Community Health Workers (CHWs) in provision of PMTCT services among the fishing communities of Sengerema and Musoma District Councils (DCs) in the Lake Zone of Tanzania. This was a cross sectional study using qualitative approach. Intrinsic and extrinsic motives were found to influence community members to be engaged as CHWs. The majority of CHWs were involved in Antenatal Care (ANC) and Reproductive and Child Health (RCH) as well as in health promotion activities as a strategy to cope with the shortage of trained health staff. CHWs were found to assist in HIV/AIDS Counseling and Treatment Center (CTC), generally, CHWs were not directly engaged in provision of PMTCT services. On the other hand, the National Health Policy does not clearly set roles of the CHWs and their incentives. Nevertheless, there are potentials of people willingness to volunteer in community health works that need to be better leveraged. Deploying CHWs is critical to enabling accessible primary health care services including HIV/AIDS particularly PMTCT services in remote areas such as fishing communities where human resource for health is reported to be inadequate.
SOCIAL AND ENVIRONMENTAL CONTRIBUTIONS, BOARD SIZE AND CASH HOLDING: THE CASE OF ENERGY FIRMS

The level of cash holding has important impact on firm operations, which maintains the desire to study the determinants of cash holding to the benefits of the firm. This study seeks to examine the individual effect of corporate social responsibility (CSR), i.e. activities to protect environmental, social, customer and labor well-being, and board size on cash holding, as well as their interaction on this factor for a sample of listed energy firms in Vietnam. Our results show that CSR and board size both negatively affect cash holdings, implying that these two factors act as effective mechanisms to curtail excessive cash holding, which may harm firm performance as suggested under agency theory. An interesting finding from our research is that if both CSR and board size are negatively related to cash holdings, the interaction of these two factors is positively related to cash holdings. An implication from this finding is that firms with proper governance characteristics could pay less attention to agency cost and information asymmetry, and in fact show more concern about precautionary motives when it comes to cash holding decisions.
Opinion Mining and Sentimental Analysis Approaches: A Survey

: The automatic extraction of information from unstructured sources has opened up new ways for querying, organizing, and analyzing data by building a clean semantics of structured databases from a huge number of unstructured data and the society became more data oriented with easy online access to both structured and unstructured data. New applications of structured extraction came around such as the paper topic opinion mining, which is a type of natural language processing for tracking the mood of the public about a particular topic. Opinion mining, which is also called sentiment analysis, involves building a system to collect and examine opinions about the product or topic made in blog posts, comments, reviews or tweets. Automated opinion mining often uses machine learning, which is a component of artificial intelligence (AI).
Anti-inflammatory effect of Adiantum capillus-veneris hydroalcoholic and aqueous extracts on acetic acid-induced colitis in rats

Objective: Colitis is an inflammatory bowel disease with unknown etiology where many factors might play a role. Adiantum capillus-veneris may have beneficial effects in colitis because of its anti-inflammatory, antioxidant, wound healing and antimicrobial effects. The aim of this study was to explore the anti-inflammatory and anti-ulcerative effects of A. capillus-veneris on acetic acid-induced colitis in a rat model. Materials and Methods: A. capillus-veneris aqueous (ACAE; 150, 300, and 600 mg/kg) and hydroalcoholic extract (ACHE; 150, 300, and 600 mg/kg) were given orally (p.o.) to male Wistar rats 2 hr before induction of colitis by intra-rectal administration of acetic acid 3%, and continued for 4 days. Prednisolone (4 mg/kg) and mesalazine (100 mg/kg) were applied p.o. , as reference drugs for comparison. On day five, colitis indices of tissue specimens were evaluated and levels of biochemical markers including myeloperoxidase (MPO) and malondialdehyde (MDA) were determined. Results: In all groups treated with ACAE and ACHE with the exception of ACAE (150 mg/kg), ulcer index and wet weight of colon as parameters of macroscopic injuries, total colitis index as marker of microscopic features and MPO activity were significantly reduced in comparison to the control group; however, MDA value was only diminished in ACAE (300 and 600 mg/kg) and ACHE (300 mg/kg) groups significantly. Conclusion: This research showed that ACAE and ACHE had dose-related beneficial effects on acetic acid-induced colitis and these effects could be attributed to anti-inflammatory, ulcer healing and antioxidant activities of these extracts.
Optimal Inflation Rate Estimation for the Kingdom of Saudi Arabia: A Threshold Model Approach

The study examines possibility of threshold effect of inflation on economic growth over the period time of 1980-2010, at the Kingdom of Saudi Arabia. Study estimated the relation between real growth domestic products (GDP) and Inflation, in addition to explanatory variables which include real gross fixed capital investment, and population growth rate. Estimated threshold model indicate that there is a non-linear relationship between economic growth and inflation rates in Saudi Arabian economy. The study results showed that the optimal inflation rate or threshold level of inflation for GDP growth is 4 percent. Below threshold level, inflation has statistically significant positive effect on GDP, but this positive relationship becomes negative one when inflation exceeds 4 percent. Applying study results may be useful for monetary and policymakers in targeting a range of inflation rate to prevent its negative impacts on economic growth. [Safar H. Alkahtani, Ahmed M. Elhendy. Optimal Inflation Rate Estimation for the Kingdom of Saudi Arabia: A Threshold Model Approach. Life Sci J 2014;11(4):73-78]. (ISSN:1097-8135). http://www.lifesciencesite. com. 8
The dying accretion and jet in a powerful radio galaxy of Hercules A

Hercules A (Her A) is one of a rare class of dying and transition-type objects, which has a pair of giant, powerful radio lobes and a weak radio core. We reduce and analyze the radio data of Her A that were observed by the Expanded Very Large Array (EVLA) during 2010-2011 at C band. The intensity distribution is very smooth along the edge of the lobe front and the intensity also sharply decreases at the edge, which supports that magnetic fields may play an important role in radio lobes. The spectrum of the weak core is very steep and the core flux becomes weaker by about ten percent when compared to what was observed twenty years ago, which suggest that the central engine is still dying quickly. Her A deviates a lot from the relation between [O III] luminosity and low-frequency 178 MHz luminosity (LO III – L178MHz) as defined by other FR I/II sources. However, when only radio core emission is considered, it roughly follows an LO III – L178 MHz correlation. This result supports that the black-hole accretion and large-scale jet in Her A did not evolve simultaneously, and indicates that although the large-scale jet is still powerful, the accretion and inner jet have changed into an inactive state. Based on the estimated Bondi accretion rate, we model the spectrum of Her A with a radiatively inefficient accretion flow and jet model.
A comparison of some phytochemical characteristics of five populations of Silybum marianum seeds from different parts of Iran

Silybum marianum seeds has traditional uses as reconstitute, stimulant, diuretic and expectorant. The aim of this study was to determine the important phytochemical characteristics of Silybum marianum seeds collected from different parts of Iran. Important characteristics of this plant include essential oil content, total phenol and flavonoid content and various radical scavenging activities. Based on obtained results, S. marianum grown in Naghadeh showed the highest oil content (20.0%) percentage, followed by Urmia (19.36 %), Saghez (19.17%), Khoy (18.85%), Marivan (18.56%) and Jolfa (18.34%), respectively. Total phenolic content of S. marianum was of the order: Marivan (29.58 mg GAE g-1 DW), Naghadeh (28.75 mg GAE g-1 DW), Khoy (28.64 mg GAE g-1 DW), Saghez (28.33 mg GAE g-1 DW), Jolfa (27.87 mg GAE g-1 DW), and Urmia (27.03 mg GAE g-1 DW). The highest (3.11 mg QE g-1 DW) and the lowest (2.31 mg QE g-1 DW) total flavonoid content of S. marianum seeds were observed in Marivan and Urmia, respectively. The plants grown in Naghadeh area showed the highest radical scavenging activities, including DPPH (58.31%) and nitric oxide (29.76%), whereas the highest super oxide radical scavenging activity was obtained in Saghez (92.27%). According to results, no noticeable differences were observed in total phenol and flavonoid contents in various studied sites. Whereas, oil content, DPPH, super oxide and nitric oxide radical scavenging activities varied in the different studied sites. Therefore, different climate changes significantly affect the phytochemical composition of S. marianum and as such, should be the focus of medical studies.
Driving Competitive Advantage: The Role of Strategic Entrepreneurship in Textile Manufacturing Firms in Lagos State, Nigeria

The paper argued that the challenges experienced in Nigerian textile manufacturing firms resulted from weak strategic entrepreneurship leading to alarming decline in the industry’s performance. Thus, investigated competitive advantage nexus with strategic entrepreneurship (strategic flexibility, adaptability, innovation, strategic leadership, risk taking and dynamic capabilities) as proxies in Lagos State, Nigeria. A cross-sectional survey research design was used and primary data collected. The adapted questionnaire validity was established through confirmatory factor analysis while the reliability was ascertained through internal consistency test. The population consists of 253 senior management staff and total enumeration was used. A total of 253 copies of the questionnaire were administered but 237 copies reverted. Descriptive statistics, exploratory analysis and structural equation model were utilized to analyse the data.
Autumn temperature affects the induction of dormancy in first‐year seedlings of acer platanoides L.

First‐year seedlings of five latitudinal populations of Acer platanoides were subjected to decreasing photoperiod treatment under three different temperature regimes. The depth of the induced dormancy was quantified as the number of days to bud burst (DBB) under defined conditions favourable to growth. The results suggested a close relationship between autumn temperature and the strength of the induced dormancy, with high temperatures combined with short days leading to a deeper stage of dormancy. Northern and continental populations generally had bud burst earlier than southern. The results are discussed in relation to hypotheses for dormancy induction and release.
Do voters reward service delivery? Experimental evidence from Liberia

Do voters provide incentives for politicians to focus on public service delivery rather than patronage? This paper examines the electoral effects of a randomized Liberian school reform, previously shown to have caused increased teacher attendance and student test scores. In the subsequent election, this seemingly successful policy caused a 3pp (10%) reduction in average vote share for the responsible party’s presidential candidate. This may reﬂect disruptions to the patronage network: treated teachers were less likely to support the incumbent party, staff polling booths
Mixed‐species Groups of Marmosets and Tamarins Across a Gradient of Agroforestry Intensification

Polyspecific associations are commonly observed in social animals, including primates, and have been interpreted as adaptations either to improve access to resources or to provide protection against predators. Mixed‐species associations between Wied's marmosets (Callithrix kuhlii) and golden‐headed lion tamarins (Leontopithecus chrysomelas) have been documented, and are unique among Atlantic forest primates. Both species are endemic to southern Bahia where part of the forest has been converted into cacao agroforests, which have been subjected to management intensification. Tree density and canopy connectivity decrease in more intensively managed agroforests, potentially increasing predation risk and the frequency of mixed‐species groups between these primates. Here, we test this hypothesis using a standardized, large spatial‐scale data set obtained from camera‐trapping in 30 sites across an agroforestry landscape mosaic. As expected, the frequency of mixed‐species groups increased in more intensively managed agroforests, but only relative to the total number of records of tamarins. Our results highlight that the benefits of mixed‐species groups can be asymmetrical among species and variable across the landscape. They corroborate that predation avoidance is an important advantage of mixed‐species groups in callitrichids, especially for conspicuous species living in smaller groups, such as the tamarin. Despite the importance of agroforests to conservation, our results indicate that management intensification can increase predation risk for species of conservation concern. To maintain the conservation value of agroforests, management practices should be planned to avoid any loss of canopy connectivity, taking into account the biodiversity vs. productivity trade‐off associated with shade management.