Miracle-dz/UniFAR-FTUs huggingface dataset:
Determination of some selected heavy metals in fish and water samples from Hawassa and Ziway Lakes

Samples of Tilapia (Oreochromis niloticus) and African catfish (Clarias gariepinus) were collected from Hawassa and Ziway Lakes during March 1-20 of 2003 E.C. The moisture content of freeze-dried body of the fish collected from six sites ranged between 62.6% and 86.6% (m/m). An optimal procedure required 12 mL mixture of HNO3, HClO4, and H2O2 (3:2:1, respectively) to mineralize powdered samples in open refluxed digestion vessels: 0.5 g of the fish body. The concentrations of 3 toxic elements in the body of the fish determined by flame atomic absorption spectrophotometer varied, respectively, (mg of element/kg of fish); Cd = 0.4 - 1.85, Pb = 0.05 - 0.5 and Hg = 0.07 - 0.096. The concentration of those three heavy metals in water samples was also determined similarly by FAAS varied, respectively, as (mg of element/L of water sample); Cd = 0.06 - 0.66, Pb = 0.28 - 0.36 and Hg = 0.5 - 0.74. Application of the statistical t-test on heavy metal elements data has shown that there was a significant difference between the mean concentrations of Hg in water samples from the two Lakes. There is no significant difference between fish as well as water sample of the two lakes for the other metals.
The Effects of National and International Interaction on Innovation: Evidence from the Irish CIS: 2004–06

This paper analyses the importance of decisions to interact nationally and internationally for the likelihood of process and product innovation in a sample of Irish firms. The key contribution is to provide an empirical test of the relative importance of geographically proximate versus distant interaction, using a two-step procedure to remove potential endogeneity in interaction decisions. In doing so it finds that only national and only international interaction have the expected positive effects on the probability of innovation, while engaging in both national and international interaction has no effect. The findings support hypotheses on the importance of both geographically proximate and distant interaction for innovation, though the lack of significance for both national and international interaction means there is no evidence to support the proposition that these forms of interaction are complementary.
Virtual Remaining Life Assessment of Electronic Hardware Subjected to Shock and Random Vibration Life Cycle Loads

This study presents a physics-of-failure-based virtual remaining life assessment method for assessing the remaining life of an electronic circuit card. The approach is then demonstrated through a case study of a circuit card assembly in the Space Shuttle solid rocket booster. Using thermal and mechanical stress damage models, the accumulated damage in the circuit card due to the life cycle environment loads on the card was calculated. Based on the amount of damage accumulated, the remaining life of the circuit card was estimated.
Investigating Paragraph Writing Skills among Polytechnic Students: The Case of Kumasi Polytechnic

Paragraphs are the building blocks of essays. A sound knowledge of paragraph structuring leads to well-written and readable essays. On the contrary, a lack of paragraph writing skills culminates into a farrago of ideas scattered haphazardly in the essay, thereby affecting paragraph unity and coherence, which in turn impacts negatively on the packaging of ideas in the essay. This study has been prompted by my observation over the years of paragraph construction difficulties polytechnic students face in their academic writing, and also the paucity of research in polytechnic writing. As a result, this paper set to investigate how students structure their paragraphs in terms of topic sentence use and support sentences. A corpus of 120 essays was collected from four departments in Kumasi Polytechnic, Kumasi, Ghana and using Bain’s paragraph principles as a benchmark to analyse them, the results revealed that 66% of the essays employed definite paragraph format. The study also found numerous one-sentence paragraphs leading to the creation of indentations, with reckless abandon. The results of the study have implications for the teaching of writing skills in polytechnics.
Synthesis of Branched Poly ( butyl acrylate ) with Controlled Molecular Weight and Distribution Using Semi-Continuous Emulsion Polymerization Methodology

Branched poly(butyl acrylate) was prepared successfully via semi-continuous emulsion polymerization of butyl acrylate copolymerized with a branching divinyl monomer, divinylbenzene (DVB), together with a chain transfer agent, 1-dodecanethiol (C12SH) to inhibit cross-linking. The particle size and size distribution of the polymer emulsion, molecular weight and molecular weight distribution of the branched polymer changed regularly as the variation of both DVB and C12SH or separately. In optimal condition (molar ratio: BA/DVB/C12SH=100/10/10-15), the branched polymer with relatively large molecular weight (Mn=10,000-15,000 g/mol) and very narrow molecular weight distribution (Mw/Mn=1.5-1.9) was obtained.
Iatrogenic Accessory Nerve Palsy after Laterocervical Lymph Node Biopsy – Clinico-Surgical Considerations on 42 Cases and Review of the Literature

Aim of the Authors is to cast a light on a very severe iatrogenic injury, with long-lasting and potentially devastating consequences for the victims and a very low level of awareness among the general surgeons, who are usually the actors of the damage. The main features of the typically involved patients, their clinical presentation and theresults obtainable after surgeryand rehabilitation are investigated at light ofthe timing of injury and the type of repair.
Attachment and the Body in Suicidal Adolescents: A Pilot Study

There is a relative dearth of studies in the field of adolescent attachment despite the potential impact of such developmental changes on the organization of attachment systems. This omission is even more acute among clinical populations, although adolescence is notable for dramatic increases in specific psychopathologies, e.g. eating disorders, delinquency, and suicide and self-harm. This article attempts to address the shortfall using a mixed quantitative/qualitative research design. First, it examines the association between attachment styles and suicidality by comparing two groups of adolescent participants attending a psychotherapy clinic. Second, it explores the phenomenology of different presentations of suicidality in adolescence from a psychodynamically informed attachment theory perspective. The clinical and research implications from these findings are discussed.
Isolation and Identification of Enteric Pathogenic Bacteria in Kadinamkulam Estuary , Kerala Gayathri

Bacterial load in surface and bottom waters of, Kadinamkulam estuary, Trivandrum District was evaluated and the results are included in this paper. Bacterial components such as total viable count (TVC), total coliforms (TC), faecal coliforms (FC) and total enterobactreiacae (TE) and the presence of few potentially pathogenic forms like Vibrio cholerae (VC), Vibrio parahaemolyticus (VP), Shigella spp. (SH), Salmonella spp. (SAL), Escherichia coli (E.coli), Faecal Streptococci (FS), Pseudomonas aeruginosa (PA), Proteus and klebsiella spp. (PKL) were isolated and identified. Three regions (head, mid, end) were identified and water was collected from surface and bottom of the estuary and collections were made during all the three seasons. The microbiological analysis of both surface and bottom waters of the estuary was made. The distributional patterns of these bacteria were estimated. The results clearly revealed that Kadinamkulam estuary is highly polluted with enteric pathogenic and indicator bacteria. The highest mean TVC was (1428026810 cfu/ml) for mid estuary, (7985-12878 cfu/ml) for end estuary and (5201.25-6563 cfu/ml) for head estuary, were obtained for surface and bottom waters respectively, during the premonsoon season for Kadinamkulam estuary.
Economic and Social Cost of Fertilizer Subsidy on Paddy Farming in Sri Lanka

The main objective of this paper is to examine the effectiveness of fertilizer subsidy on paddy cultivation. ANCOVA model was fitted in order to accomplish this objective. Accordingly, it was found that there is a statistically significant positive relationship between fertilizer subsidy and average yield of paddy farming. Marginal Analysis was employed in order to assess the efficiency of fertilizer usage. According to the analysis, private benefits of fertilizer usage are higher than private cost; hence, fertilizer usage is inefficient; more precisely fertilizer is underutilized. On the contrary, as evidence shows social cost of fertilizer usage is higher than social benefits; fertilizer usage is inefficient but over utilized. Hence, appropriate measures should be taken up in order to reduce fertilizer usage. This dilemma should be handled very carefully. Since evidence has established that fertilizer usage is encouraged by fertilizer subsidy, it is suggested to reconsider the mechanism of fertilizer subsidy instead of removing it.
Demonic Dreaming: Two Case Studies

The intriguing study of dreams related to mystical symbols has attracted not only such conventional fields as comparative religions and philosophy, but also psychoanalyses. In this report, first, the author briefly introduces, from the perspectives of Freud and Jung, the importance of energetic desire (libido), symbolism, and unconsciousness in interpreting dreams. Then, the author presents two case studies focusing on demonic dreams, which have been rarely investigated in scholarly research. The dreams are discussed in terms of their significance in the dreamers’ experience and their implications for the use of dreams in psychoanalysis. The findings suggest that demonic symbols in dreaming could result unconsciously from dreamers’ daily residues, fulfillment of will, or inferiority complex. The report discusses at the end Chinese folklore in interpreting demonic
Analyzing Adoption and Intensity of Use of Coffee Technology Package in Yergacheffe District, Gedeo Zone, SNNP Regional State, Ethiopia

Coffee is among the most traded commodity across the world and thus coffee plays a vital role in the balancing of trade between developed and developing countries. Coffee (Coffea arabica), originated in Ethiopia and supports the livelihood of many small scale farmers. However, the efficiency of coffee system is inhibited by different factors of which lack and low use of improved technological packages takes a big share. This research therefore, conducted in Yergacheffe District with the objectives of analyzing adoption and intensity of use of coffee technology package and investigating demographic, socio-economic and institutional factors which have relation to coffee technological packages and characterize adoption and Intensity of Use of coffee technology package related problems. The study used both primary and secondary data. 160 household heads were selected using systematic random sampling procedure with sample size allocation procedures of probability proportional to size method. Structured interview questionnaire was prepared and administered to elicit the required data. Data were analyzed, and presented quantitatively using different statistical methods such as percentage, mean, frequency, Chi-square (categorical variables ) and (F-test for continuous variables), F-test and Chisquare test were employed to test the variation of the sample respondents they have towards adoption and intensity of coffee technology package and also used to describe the patterns of the sample data. The results of Tobit model indicated that respondent’s level of education, social participation, access to credit, labor availability, and farm size and achievement motivation were important variables which had positively and significantly influenced adoption and intensity of use of improved coffee technology package. On the other hand, market distance had shown negative and significantly affected adoption and intensity of use of coffee technology package. Based on the finding of the current study it can be concluded that, policy and development interventions should give emphasis towards improvement of such economical and institutional support system so as to achieve wider adoption, increased productivity and increase income level of small scale farmers.
The DANE TJ Procedure for Elbow Medial Ulnar Collateral Ligament Insufficiency

ABSTRACT Elbow ulnar collateral ligament reconstruction has evolved considerably over more than 30 years since first performed. Many modifications of the original procedure are described and the reported outcomes seem to improve with each passing decade. This trend is due in part to an improved understanding of the relevant anatomy and also to improved surgical methods. The DANE TJ method for medial elbow ligament reconstruction offers the surgeon 1 more option and potentially produces construct isometry that most closely resembles the native ligament.
Time evolution of snow regions and planet traps in an evolving protoplanetary disk

Context. Planet traps and snow lines are structures that may promote planetary formation in protoplanetary disks. They are very sensitive to the disk density and temperature structure. It is therefore necessary to follow the time evolution of the disk thermal structure throughout its viscous spreading. Since the snowlines are thought to generate density and temperature bumps, it is important to take into account the disk opacity variations when the various dust elements are sublimated. Aims. We track the time evolution of planet traps and snowlines in a viscously evolving protoplanetary disk using an opacity table that accounts for the composition of the dust material. Methods. We coupled a dynamical and thermodynamical disk model with a temperature-dependent opacity table (that accounts for the sublimation of the main dust components) to investigate the formation and evolution of snowlines and planet traps during the first million years of disk evolution. Results. Starting from a minimum mass solar nebula, we find that the disk mid-plane temperature profile shows several plateaux (0.1−1 AU wide) at the different sublimation temperatures of the species that make up the dust. For water ice, the corresponding plateau can be larger than 1 AU, which means that this is a snow “region” rather than a snow “line”. As a consequence, the surface density of solids in the snow region may increase gradually, not abruptly. Several planet traps and desert regions appear naturally as a result of abrupt local changes in the temperature and density profiles over the disk lifetime. These structures are mostly located at the edges of the temperature plateaux (surrounding the dust sublimation lines) and at the heat-transition barrier where the disk stellar heating and viscous heating are of the same magnitude (around 10 AU after 1 Myr). Conclusions. Several traps are identified: although a few appear to be transient, most of them slowly migrate along with the heattransition barrier or the dust sublimation lines. These planet traps may temporarily favor the growth of planetary cores.
Non-linear evolution of instabilities between dust and sound waves

We study the non-linear evolution of the acoustic ‘resonant drag instability’ (RDI) using numerical simulations. The acoustic RDI is excited in a dust–gas mixture when dust grains stream through gas, interacting with sound waves to cause a linear instability. We study this process in a periodic box by accelerating neutral dust with an external driving force. The instability grows as predicted by linear theory, eventually breaking into turbulence and saturating. As in linear theory, the non-linear behaviour is characterized by three regimes – high, intermediate, and low wavenumbers – the boundary between which is determined by the dust–gas coupling strength and the dust-to-gas mass ratio. The high and intermediate wavenumber regimes behave similarly to one another, with large dust-to-gas ratio fluctuations while the gas remains largely incompressible. The saturated state is highly anisotropic: dust is concentrated in filaments, jets, or plumes along the direction of acceleration, with turbulent vortex-like structures rapidly forming and dissipating in the perpendicular directions. The low-wavenumber regime exhibits large fluctuations in gas and dust density, but the dust and gas remain more strongly coupled in coherent ‘fronts’ perpendicular to the acceleration. These behaviours are qualitatively different from those of dust ‘passively’ driven by external hydrodynamic turbulence, with no back-reaction force from dust on to gas. The virulent nature of these instabilities has interesting implications for dust-driven winds in a variety of astrophysical systems, including around cool stars, in dusty torii around active-galactic-nuclei, and in and around giant molecular clouds.
Significance of the Expression of CD 90, 96, 117 and 123 inEgyptian Patients with Acute Myeloid Leukemia, Relation toPrognosis and Response to Treatment

Objective: Investigating the expression pattern of CD 90, 96,117 and 123 in bone marrow or peripheral blood from adult patients with acute myeloid leukemia and their use as markers for diagnosis and prognosis. Patients and methods: Using Muli-color flowcytometry, we analyzed the expression of CD90, 96, 117 and 123 among [CD34+/CD38-] cell population in AML patients at initial diagnosis. Results: It was found that percentage of CD90+ cells was lower among [CD34+/CD38-] cells in of AML cases than control group, however this difference didn't reach any statistical significance (p value=0.06), the percentage of CD96+ cells among CD34+CD38- cells was higher in AML cases than for control group (that show a highly statistically significant difference (p value<0.001), the percentage of CD117 cells was higher among CD34+ CD38- cells in AML cases than for control group, however this difference didn't show statistical significance (p value=0.079), While percentage of CD123 was significantly higher among [CD34+/CD38-] cells in AML cases than the control group and this difference shows a high statistical significance (P value<0.001).
Self‐initiated expatriates and their career success

Purpose – This paper aims to provide conceptual clarity by distinguishing self‐initiated expatriates (SIEs) from company‐assigned expatriates (AEs), and skilled migrants; most importantly, it introduces an overarching conceptual framework based on career capital theory to explain SIEs’ career success.Design/methodology/approach – This conceptual framework is based on a review of the relevant literature on SIE, expatriation, career studies, cross‐cultural studies, migration, and other related areas.Findings – Protean career attitude, career networks, and cultural intelligence are identified as three major types of career capital influencing SIEs career success positively; the predicting relationships between these are mediated by cultural adjustment in the host country. Cultural distance acts as the moderator, which highlights the influence of macro‐contextual factors on SIEs’ career development.Research limitations/implications – The current paper applied career capital theory and did not integrate the im.
Assessment of water quality of the Shatt Al-Arab River, using multivariate statistical technique

This paper presents the results of statistical analysis of a set of physico-chemical water quality parameters, monthly collected from December 2012 to November 2013 at seven sampling stations spread over the Shatt Al-Arab River. Seventeen parameters were treated using Multivariate statistical technique; principal component analysis (PCA) and cluster analysis (CA) were applied for the evaluation and interpretation of a water quality data set for the Shatt Al-Arab River. The results of PCA identified four latent factors, which are responsible for the data structure explaining 78.64% of the total variance of the dataset these factors are: Water mineralization, Seasonal effect of temperature and organic pollution, Nutrients content and water visibility. CA showed four different groups of similarity between the sampling stations reflecting the different physicochemical characteristics features and natural background sources types. This study suggests that PCA and CA techniques are useful tools for identification of important surface water quality monitoring stations and parameters.
Investigation of the Hydroxyapatite Growth on Bioactive Glass Surface

Coating of dental ceramics with a bioactive glass resulted in the formation of a stable and well bonded ceramic substrate thin layer. After immersion in a solution with ion concentrations similar to those of human blood plasma the development of hydroxy-carbonate apatite layer on the surface of bioactive glass may be observed. The objective of this study was to investigate structural surface changes of bioactive glass, after exposure in a simulated body fluid for different number of days. The roughness and topography of the hydroxyapatite surface were investigated by Confocal Scanning Laser Microscopy. The chemical composition was analyzed by Energy Dispersive Spectroscopy measurements and phase characterization was made by Fourier Transform Infrared Spectroscopy.
Persistence and Kurtosis in GARCH and Stochastic Volatility Models

This article shows that the relationship between kurtosis, persistence of shocks to volatility, and first-order autocorrelation of squares is different in GARCH and ARSV models. This difference can explain why, when these models are fitted to the same series, the persistence estimated is usually higher in GARCH than in ARSV models, and, why gaussian ARSV models seem to be adequate, whereas GARCH models often require leptokurtic conditional distributions. We also show that introducing the asymmetric response of volatility to positive and negative returns does not change the conclusions. These results are illustrated with the analysis of daily financial returns.
Retrieval analysis of 38 WFC3 transmission spectra and resolution of the normalization degeneracy

A comprehensive analysis of 38 previously published Wide Field Camera 3 (WFC3) transmission spectra is performed using a hierarchy of nested-sampling retrievals: with versus without clouds, grey versus non-grey clouds, isothermal versus non-isothermal transit chords, and with water, hydrogen cyanide, and/or ammonia. We revisit the ‘normalization degeneracy’: the relative abundances of molecules are degenerate at the order-of-magnitude level with the absolute normalization of the transmission spectrum. Using a suite of mock retrievals, we demonstrate that the normalization degeneracy may be partially broken using WFC3 data alone, even in the absence of optical/visible data and without appealing to the presence of patchy clouds, although lower limits to the mixing ratios may be prior-dominated depending on the measurement uncertainties. With James Webb Space Telescope-like spectral resolutions, the normalization degeneracy may be completely broken from infrared spectra alone. We find no trend in the retrieved water abundances across nearly two orders of magnitude in exoplanet mass and a factor of 5 in retrieved temperature (about 500–2500 K). We further show that there is a general lack of strong Bayesian evidence to support interpretations of non-grey over grey clouds (only for WASP-69b and WASP-76b) and non-isothermal over isothermal atmospheres (no objects). 35 out of 38 WFC3 transmission spectra are well fitted by an isothermal transit chord with grey clouds and water only, while 8 are adequately explained by flat lines. Generally, the cloud composition is unconstrained.