Miracle-dz/UniFAR-FTUs huggingface dataset:
Detection and functional studies of p60-65 (Tac antigen) on activated human B cells

A monoclonal antibody, AT-1, is shown to precipitate a p60-65 molecule identical to the Tac antigen. With AT-1, the expression of IL-2 receptors by normal activated human B cells from peripheral blood and tonsils is documented by biosynthetic and immunofluorescence studies. AT-1 precipitated a p60-65 protein from [35S]methionine-labeled activated B cells, similar to that from activated T cells. The interleukin 2 (IL-2) receptor appeared shortly after activation with anti-IgM and B cell-stimulatory factor(s). Its expression reached its peak at 60-72 h with approximately 50% of the B blasts stained by AT-1. Other modes of activation of B cells, by T cell-independent, formalin- treated staphylococci and Epstein-Barr virus, and by T cell-dependent pokeweed mitogen, also induced IL-2 receptor expression. The functional significance of this finding was investigated using recombinant IL-2 (rIL-2). While rIL-2 did not induce resting B cells to proliferate in the presence of anti-IgM, it induced activated B cells to proliferate in the absence of other factors. On the other hand, rIL-2 did not induce the differentiation of these activated B lymphocytes. These data suggest that IL-2 may play a significant role in B cell activation.
Genotype x environment interaction on sesame (Sesamum indicum L.) seed yield

Sesame is an oilseed crop grown for its seed and oil for local and export markets and is a great source of income for farmers, traders, processers and the national economy of Ethiopia. However, its productivity and production are influenced by environmental factors. This experiment was, therefore, carried out to estimate the nature and magnitude of interaction of genotypes with the environment and to identify stable sesame genotypes in Eastern Amhara Region. Twelve sesame genotypes were studied at eight environments: namely: Chefa, Kobo and Shewarobit in 2010 and 2011; Jari and Sirinka in 2011 main cropping seasons using randomized complete block design with three replications. Data were analyzed for individual location and across locations using GenStat, and stability using Agrobase softwares. The highest seed yields were obtained from genotypes Acc.00047, NN-0143 and Acc.202-344 (712.8, 679.2 and 639.9 kg ha-1), respectively. There were highly significant difference (P<0.01) among genotypes, environments and Genotype by Environment Interaction (GEI), indicating that genotypes performed differently across locations and the need for stability analysis. Based on stability models, genotype Borkena was stable genotype, but genotype Acc.00047 had specific adaptability at potential environment (Kobo). In Additive Main effect and Multiplicative Interaction (AMMI) analysis, the proportion of variance captured by environment 51.2%, genotypes 12.9% and GEI 31.9% of the total variation. The Interaction Principal Component Axis 1&2 (IPCA1&2) of AMMI model were highly significant (P<0.01) and captured the largest portion of variation (74.7%) from the total GEI, indicated that the AMMI model 1 was the best for the data evaluate. AMMI 1 biplot graph showed that Shewarobit and Kobo were potential and favorable environments; Sirinka was an average, while Chefa and Jari were unfavorable environments for sesame production and also Shewarobit and Chefa were the most discriminating environments, while local variety and genotype Acc.00047 were the most responsive genotypes. Key words: Additive Main Multiplicative Interaction (AMMI), location, specific adaptation, stability, wide adaptation.
NUMERICAL MODELING OF THREE-DIMENSIONAL VENTILATION DUCT FLOW

479 Presented in the paper is an efficient and accurate numerical method for simulation of ventilation duct flow. The mathematical method is based on the three-dimensional incompressible RANS equations with isotropic k-ro near-wall turbulence closures, written in generalized curvilinear coordinates in strong conservation form. The numerical method presented here is used to calculate the turbulent flow through a bend of rectangular ventilation duct featuring pressure induced secondary motions and rotation effects on turbulence. The problem has been the subject of an experimental study of Kim and Patel (1994). Numerical results are compared with experimental data.
Vegetative Propagation of Cashew (Anacardium occidentale L.) by Softwood Grafting in Ghana

An investigation was done to assess the graft success on seedlings and canopy substitution using grafting techniques, retention of basal leaves on the rootstock, age of rootstock and period of grafting in a randomize complete block design with twenty plants per treatment and replicated three times. Young vigorously growing cashew seedlings were used for grafting whilst poor performing cashew trees (in yield and young trees) were stumped to produce shoots for the top working. Significantly (p < 0.05) higher grafting success was obtained for softwood grafting technique in the month of July with October recording the lowest for canopy substitution. Grafting on 60 days old seedlings with the retention of four (4) matured basal leaves on the rootstocks significantly (p < 0.05) gave high success in graft union whilst the root stocks without basal leaves recorded low graft successes. However, there was significant (p < 0.05) off-shoots development below the graft union of the rootstock. Softwood grafting was the best technique for high graft success with the month of July being suitable period for grafting in canopy substitution. Retaining four (4) matured leaves at the base of 60 days old rootstock was the best for achieving high graft success with reduction of infection. An investigation was done to assess the graft success on seedlings and canopy substitution using grafting techniques, retention of basal leaves on the rootstock, age of rootstock and period of grafting in a randomize complete block design with twenty plants per treatment and replicated three times. Young vigorously growing cashew seedlings were used for grafting whilst poor performing cashew trees (in yield and young trees) were stumped to produce shoots for the top working. Significantly (p < 0.05) higher grafting success was obtained for softwood grafting technique in the month of July with October recording the lowest for canopy substitution. Grafting on 60 days old seedlings with the retention of four (4) matured basal leaves on the rootstocks significantly (p < 0.05) gave high success in graft union whilst the root stocks without basal leaves recorded low graft successes. However, there was significant (p < 0.05) off-shoots development below the graft union of the rootstock. Softwood grafting was the best technique for high graft success with the month of July being suitable period for grafting in canopy substitution. Retaining four (4) matured leaves at the base of 60 days old rootstock was the best for achieving high graft success with reduction of infection.
PARAMETRIC OPTIMIZATION OF CNC WIRE CUT EDM FOR OHNS STEEL USING MOORA METHODOLOGY

The selection of optimum machining condition, during wire electric discharge machining process, is of great concern in manufacturing industries these days the increasing quality demands, at higher productivity levels, require the wire electrical discharge machining process to be executed more efficiently. Specifically, the MRR needs to be maximized while controlling the surface quality. In this study oil harden nonshrinking (OHNS) steel is used as a work piece, brass wire of diameter 0.25 mm used as a tool and distilled water is used as a dielectric fluid. For experimentation Taguchi’s L orthogonal array has been used. The input parameters selected for optimization are wire tension, wire feed rate, flushing pressure, servo feed rate. by using parametric optimization technique, MOORA method, best parametric combination is found. KeywordsMRR, SR, OHNS, MOORA Method.
The Relationship Between Students’ Personality Types and Their Academic Achievement in Oromia Colleges of Teachers’ Education

The objective of this study was to determine the relationship between students’ personality types and their academic achievement at Oromia Colleges of Teachers’ Education. Correlational design was used to conduct the study. The population of the study was 2291 male and 2734 female students in four Oromia Teachers’ Education Colleges. 357 students were selected using stratified sampling techniques and followed by simple random sampling method from four randomly selected colleges. The instrument adapted for the study was the 44-item standardized questionnaire known as the Big Five Inventory constructed by John, Donahue, and Kentle as cited in John & Srivastava (1999). The instrument was piloted before it used for final study and found reliably and valid. The data collected were analyzed using descriptive and inferential statistics. Pearson moment correlation was used to determine the strength of relationship between each personality type and academic achievement. In addition, multiple regressions was used to determine the extent to which the independent variables Agreeableness, Conscientiousness Extraversion, Neuroticism and Open to experience predict the dependent variables grade point average in Oromia Colleges of Teachers’ Education. The result of the study show that there was positive significant relationship between students’ personality types namely Agreeableness, Conscientiousness and Open to experience and their academic achievement. It was suggested that teachers are expected to identify the personality profiles of their students, to render necessary academic help according to personality nature of students. Oromia Education Bureau is expected to arrange training and seminar, and workshop as well as experience sharing on the issue of students’ behaviors in general and personality types in particular. In addition, it is suggested to strength guidance and counseling service in Colleges of Teachers’ Education.
THE EFFECT OF EMOTIONAL INTELLIGENCE ON JOB SATISFACTION MEDIATED BY ORGANISATIONAL JUSTICE AND JOB INSECURITY: STUDY IN ACEH PROVINCE GOVERNMENT SECRETARIAT

This research examines the effect of emotional intelligence on job satisfaction mediated by organizational justice and job insecurity in Aceh Province Government Secretariat. The population were leaders and employees, amounting to 595 people. The sample was determined using proportionate stratified random sampling technique, as a systematic random sample selection of subjects which is done by dividing the population as many as n parts and taking samples in each part starting from the first part randomly. The Slovin formula provided the number of samples as much as 161 respondents. The model was tested using Structural Equation Modeling (SEM). The finding shows that emotional intelligence affects employee organizational justice, emotional intelligence affects job insecurity, emotional intelligence affects employee job satisfaction, organizational justice affects employee job satisfaction, job insecurity affects employee job satisfaction, organizational justice mediates the influence of emotional intelligence on job satisfaction, job insecurity mediates the influence of emotional intelligence on job satisfaction. These findings contribute academically, especially in the renewal of the theory of causality and can be a reference for practical leaders, especially those in the Aceh Province Government Secretariat. The novelty of the results of this study lies in the combination of previous causality research models, using a new object. The interesting issue in the research model resides in the use of the organizational justice and job insecurity as mediators. The limitation of the study resides in the number of variables studied and the scope of the study Keyword: Emotional Intelligence, Job Satisfaction, Justice, Job Insecurity.
Localisation Performance of Higher-Order Ambisonics for Off-Centre Listening

Spatial audio reproduction systems aim to provide the psychoacoustic cues necessary to create a subjectively convincing portrayal of a sound field. Interaural time and level differences synthesised by ambisonic and amplitude-panned reproduction systems are simulated to assess the ability to accurately reproduce binaural cues. Two binaural models an analytical sphere and measured HRTF data from the MIT KEMAR database were used to obtain ITD and ILD cues for ambisonic and amplitude-panned reproduction with three loudspeaker layouts. By comparing results for central and off-centre listening positions, the relationship between listening area 'sweet spot' and binaural cues is studied. For central listening positions, large ITD errors are observed with an amplitude-panned ITU 5.0 layout, with first-order ambisonics showing improved performance. Thirdorder ambisonics is required to achieve improved ILD performance over the ITU 5.0 system. For off-centre listening, fourth-order ambisonics using an octagon layout is required to achieve improved ITD and ILD performance over the ITU 5.0 system. The analytical limitations of binaural cues are discussed, with suggestions for further work in the area. The material in this paper was originally presented at the Institute of Acoustics Reproduced Sound conference in November 2012: D. Satongar, C. Dunn, Y. Lam, and F. Li, "Psychoacoustic Evaluation of Spatial Audio Reproduction Systems," IOA conference Reproduced Sound 28, Brighton, UK (2012). Additional key words: ambisonic, binaural, ILD, ITD, listening area, localisation, panning, surround sound, VBAP
Comparative Effects of Aqueous and Freeze Dried Leaf Extracts of Tephrosia vogelii on Heterobranchus longifilis Juveniles Val. (Pisces: 1840)

The present study was carried out to evaluate the potential of the aqueous leaf and freeze-dried leaf extracts of Tephrosia vogelii as tranquilizers on an African catfish, Hetetobranchus longifilis post juveniles (mean weight 115.00±25.00g) obtained from wild stock. They were acclimatized under laboratory conditions for two weeks prior to the commencement of the experiment. The fish were fed once a day at 9.00 hours at 4% body weight during the period of acclimatization. Each tank containing acclimatization water was aerated to enhance dissolved oxygen, and water was changed daily to prevent metabolic waste build up. Experimental fish were starved for 24 hours prior to sedation to prevent regurgitation from the gastro-intestinal tract (GIT). Four healthy Hetetobranchus longifilis were selected randomly from both the control and treatment groups. Each fish was weighted and injected 0.05ml of aqueous and freeze-dried leaf extracts at concentrations of 0.01, 0.02, 0.03, 0.04, 0.05 and 0.06g/l using №. 23 needle and a 2ml heparinized syringe. Injection was done intramuscularly (IM) at the dorsal saddle just above the lateral line behind the operculum. Fish in the control group were injected with distilled water. Injected fish were observed for behavioural responses. The result showed that H. longifilis injected with the freeze-dried leaf extract of T. vogelii passed sequentially through the first three stages of anaesthesia but could not attain total loss of equilibrium (stage 4 of anaesthsia). Behavioural responses included mucus secretion, slow and erratic swimming, excrement discharge, increase in opercular beat rate, strong retension of reflex action, partial loss of equilibrium and colour change. The induction time decreased with increasing concentration of the anaesthetic extract. The recovery time followed the reverse order. The opercular beat rates, before and after sedation in the treatment groups showed increase over that in the control group and it increased with increasing concentration. The result of the experiment with aqueous leaf extract showed that there was no significant difference in opercular beat rate after sedation in all centrations used (P>0.05). The result also showed that at higher concentration (0.06g/l) induction was time 44.67 seconds while at concentration 0.02g/l induction time was 83.70 seconds. In the case of the freeze-dried leaf extract of T. vogelii the induction at concentration 0.06g/l was 49.33 seconds while at concentration 0.02g/l induction time 76.67 seconds.
Geomancy: Automated Performance Enhancement through Data Layout Optimization

The size and complexity of large storage systems, such as high-performance computing (HPC) systems, inhibit rapid effective restructuring of data layouts to maintain performance as workloads shift. To address this issue, we have developed Geomancy, a tool that models the placement of data within a distributed storage system and reacts to drops in performance. Our approach to optimizing throughput offers benefits for storage systems such as avoiding potential bottlenecks and increasing overall I/O throughput from 11% to 30%.
TALENT MANAGEMENT PRACTICES AND GENDER IMBALANCE IN INSTITUTIONS: IMPACT ON INSTITUTIONAL PERFORMANCE

This study examines the Talent Management Practice (TMP) and gender imbalance in Institutions of higher learning (IHL): the impact on Institutional performance. The researchers employed the post-positivist design. A structured questionnaire using the Linkert scale was used to collect empirical data. Partial Least Square equation modeling was used to analyze the data. PLS model was used because the study involved many constructs, and our objective is to provide a better understanding of increasing complex variables by exploring theoretical extensions on TMP, and the latent variables scores were used for follow-up analysis (Hair et al. 2017). The findings of the study revealed a significant positive relationship between TMP (culture and training) and Institutional Performance. The implication is that for IHL to achieve efficiency they must continue to invest in talent training and promotion gender equality through mentorship, child health careand early learning facilities, and research grants programs should be ingrainedinto IP as part of the operational culture.
AN ANALYSIS OF THE THROWING TECHNIQUE OF COLLEGE MALE JAVELIN THROWERS IN A COMPETITION

The purposes of this study were to investigate the throwing technique for Japanese college male athletes in official competitions, focusing on the torso and throwing arm motions, and to obtain basic information for the improvement in their techniques. Twenty-four male college throwers were videotaped and analysed for their throwing motion using the threedimensional DLT method and caluclated the joint angle. The throwers were divided into three groups based on their records. Comparison to the ELITE throwers, the timing of the torso rotation for college groups was delayed. Significant differences in the right shoulder horizontal abduction angle around the left foot touchdown among the three groups were found. These results imply that the right shoulder horizontal abduction may be one of the factor determining throwing distance as well as early torso rotation. The discussion suggested that the concept change from the late rotation to the early rotation of the torso for the college male javelin throwers would result in a large horizontal abduction and a quick horizontal adduction of right shoulder.
DEVELOPMENT OF ANTI-THEFT OFFLINE GPS TRACKER

Anti-Theft Offline GPS Tracker has been introduced in this paper to meet up the demand for secure use of important technological gadgets i.e. laptop, mobile phone, etc. It is developed in a way so that if any gadget gets stolen or gets lost, it can track even if it is offline. The tracker will be connected with the battery of the device where it is installed. So, even the device is switched off, it can gain power from the recharged battery from the device. Anti-Theft Offline GPS tracker is designed to locate the place of location offline, of the object with which the GPS Tracker will be attached. It will send a text message containing the Google Map link of the location to a given phone number when asked. By this, the gadget can be identified with its location point. We have followed almost all the procedures of the product development process from getting customer preferences to designing and finalizing the product. Material selection and cost analysis have also been done based on the mass production of the product. This product features exact location & real-time tracking, quick and continuous reply, rechargeable battery, easy to carry and cost efficient.
A broadband Doherty power amplifier design by optimizing its load modulation network

: A kind of broadband power ampli ﬁ er for wide-band coverage of the next-generation base station communications systems is obtained through using GaN HEMT transistor CGH40010 supplied by CREE as carrier or peak power ampli ﬁ ers, and a novel load modulation network (LMN) is presented in this paper. With continuous wave (CW) measurements, the results for the obtained Doherty power ampli ﬁ er (DPA) show that the saturation drain e ﬃ ciency is between 61% and 71%, the 6 dB back o ﬀ e ﬃ ciency is greater than 35%, and the maximum e ﬃ ciency is 52% in the 2.8 – 4.0 GHz frequency range. The performance of this improved DPA is more excellent than that of the unimproved one. Furthermore, 20 MHz long term evolution (LTE) modulated signals are applied for and digital pre-distortion (DPD) to evaluate its linearization performance. And lower than − 46 dBc adjacent leak power ratio (ACLR) can be achieved at 3.5 GHz.
A Human Detection Model for UAV-Assisted Emergency Management Information Systems

With the advancement of automation and communications technologies, the Unmanned Aerial Vehicles (UAVs) have become great assistants in several critical applications. By contributing computer vision (CV) techniques to UAV technology, a human detection model for UAV-assisted emergency management information systems is proposed in this paper. The proposed scheme consists of a control center that is monitoring the emergency management procedures. After training and testing the human detection model at the control center, it is mounted on UAVs that are deployed in search and rescue (SAR) operations. By applying the proposed system in real-world scenarios, it can be expected to help in reducing the operational delay for acquiring situational information of the disaster-affected areas in SAR operations and thus, increasing the survival rate of the victims.
Children's Expressive and Receptive Knowledge of the English Regular Plural

We investigate the development of children’s early grammatical knowledge using the test case of the English regular plural. Previous research points to early generalization, with children applying an abstract morphological rule to produce novel plurals well before 24 months. At the same time, children use the plural inconsistently with familiar object words, and demonstrate limited receptive knowledge of the plural in the absence of supporting linguistic features. In the first study to test knowledge of the plural within participants using a paradigm matched across comprehension and production, we conduct two experiments with n = 52 24-36-month-olds: an eyetracking task to evaluate what they understand, and a storybook task to test how they use the plural. We manipulate both novelty (novel vs. familiar object words) and phonological form (/s/ vs. /z/ plurals). We find strong, age-related evidence of productive knowledge of the plural in an expressive task, but do not find evidence of receptive knowledge in these same children.