Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparative Study of Maxillary Expansion by Alternate Rapid Maxillary Expansion and Constriction Versus Hyrax Expansion

Aim of study: was to evaluate the skeletal and dental effects of maxillary expansion by alternate rapid maxillary expansions and constrictions technique in comparison to conventional RME expansion by Hyrax by using PA cephalometry. Material and methods: Twenty patients with constricted maxillary arch represented with an unilateral or bilateral posterior cross bite were selected with ages ranged from 12-15 years. Patients were divided randomly into two equal groups by computer aided randomization according to the protocol of expansion into (Group I): who received alternate rapid maxillary expansions and constrictions (Alt-RAMEC) protocol and (Group II): who received conventional RME protocol. Results: Skeletally, the Latero-Nasal Width and the Maxillary width recorded higher mean values in Alt-RAMEC group than RME group with statistical significance. Dentally, all linear and angular measurements recorded higher mean values postoperatively in Alt-RAMEC group than RME group with no statistical significance except upper inter-incisal width mesial. Conclusions: Alt-RAMEC protocol produces highly skeletal effects by increasing the nasal width and the maxillary width.
Selection of organization models and creation of competences of the employed people for the sake of competitiveness growth in global business environment

This paper is a result of its author’s work, whose goal was to examine the role of globalization in the change of organization models and intensification of its competitiveness, following trade liberalization. In addition, the goal was to define competitive advantages, which the companies have to develop in order to survive in a highly competitive global market. The study has shown that market expansion does not mean that only big business subjects will be able to make a profit. Also, the analysis has shown that there is no correlation between a big market and success of big businesses. In other words, globalization rewards the companies which are innovative and competitive, regardless of the company’s size and country of origin.
A Life-Cycle Framework for Managing Risks in Public Private Partnership Housing Projects

Abstract Public private partnership projects have been adjudged to contain more risks than traditionally procured projects due to more number of parties involved and their varying interests. These risks affect the achievement of projects objectives and therefore need to be identified and treated to guarantee project success. This paper developed a life cycle framework for managing risks in PPP housing projects in Nigeria. The respondents were selected using purposeful sampling technique. The data used for the study were obtained through semi-structured questionnaire and were analysed using mean rating. Risk transfer was found to be the widely used measure for responding to risks in PPP housing projects. The criteria mostly used for risk allocation were party with the best ability to manage specific risks should they occur and ability of the party to foresee risks. A four-stage life cycle framework was developed, evaluated and validated by experts in the built environment to ascertain its reliability. The framework is recommended for PPP housing projects in Nigeria.
Maximum power point tracking for brushless DC motor-driven photovoltaic pumping systems using a hybrid ANFIS-FLOWER pollination optimization algorithm Priyadarshi, Neeraj; Padmanaban, Sanjeevikumar; Mihet-Popa, Lucian; Blaabjerg, Frede;

In this research paper, a hybrid Artificial Neural Network (ANN)-Fuzzy Logic Control (FLC) tuned Flower Pollination Algorithm (FPA) as a Maximum Power Point Tracker (MPPT) is employed to amend root mean square error (RMSE) of photovoltaic (PV) modeling. Moreover, Gaussian membership functions have been considered for fuzzy controller design. This paper interprets the Luo converter occupied brushless DC motor (BLDC)-directed PV water pump application. Experimental responses certify the effectiveness of the suggested motor-pump system supporting diverse operating states. The Luo converter, a newly developed DC-DC converter, has high power density, better voltage gain transfer and superior output waveform and can track optimal power from PV modules. For BLDC speed control there is no extra circuitry, and phase current sensors are enforced for this scheme. The most recent attempt using adaptive neuro-fuzzy inference system (ANFIS)-FPA-operated BLDC directed PV pump with advanced Luo converter, has not been formerly conferred.
Effects of reciprocal crosses

In this study reciprocal mating was conducted between exotic chicken and locally purchased indigenous chicken from at the Department of Animal Breeding and Genetics, Bangladesh Agricultural University Mymensingh. The exotic chicken included White Leghorn (WL), RIR and Fayomi cocks and local cocks were mated to WL, RIR and Fayoumi hens naturally. Local cocks were mated to local hens in the pen as the control group. A total of 43 chicks in 4 genetic groups were raised up to 8 weeks under identical conditions. The objectives of the study is to keep record of egg production & egg weight of chicks hatched out of such reciprocal mating and compare the results in respect of egg production egg weight with control group (indigenous chickens). In conformity the performance of chicks produced by reciprocal mating among the two types in terms of egg production and egg weight were recorded. Egg production of the WL and Fayoumi was about double than that of indigenous and RIR, WL and Fayoumi compared to WL, Fayoumi and RIR. Growth rate, growth velocity and weight gain in Indigenous male ×WL female, Indigenous × Fayoumi female and Indigenous male× RIR female was found by higher than that of WL male ×Indigenous female, RIR male × Indigenous female and Fayoumi male × Indigenous female. Among the genotypes, Indigenous male ×WL female had the maximum gain in body weight. The results obtained indicated that male line of indigenous chickens crossed with females of other breeds was significantly higher than the female line of indigenous chicken crossed with male of their breeds in their growth performance.
Gender, Socioeconomic Status, and Politeness Strategies: Focusing on Iranian High School Students’ Usage of Request Speech Act

The present study was developed in response to the need to further investigate politeness and politeness strategies in Persian context. The overarching goal was to extract and categorize the range of politeness strategies used in Iranian culture to see if they conform to the framework Brown and Levinson (1987) claim to be universal. The study also sought to investigate the potential effect that the two variables of gender and socioeconomic status may have on politeness strategies used in Iranian culture. An open-ended questionnaire was used as a modified version of the Discourse Completion Test to collect a number of requests from a sample of 120 male and female native Persian speakers. The analysis of strategy types and frequencies revealed that, in Iranian culture, speakers seem to prefer negative politeness strategies when making requests. As for the second part of the study, it was found that gender and socioeconomic status of Persian speakers have no significant effect on the type and frequency of politeness strategies used in performing requestive speech act. On the whole, the results indicated that all the politeness strategies used in making requests chime with Brown and Levinson’s politeness framework and that Brown and Levinson’s politeness theory can account for politeness strategies used in Persian.
Is There Any Difference in the Outcome of Growth Modification Treatment Between Class II Division 1 and 2 Malocclusions?

Background: Class II malocclusion is one of the most common orthodontic problems that can be divided into class II division 1 and division 2. Considering the differences between the 2 malocclusions, the present study was designed to compare the dentoskeletal changes caused by growth modification treatment. Methods: This retrospective study included 52 patients (2 groups) with class II division 1 and 2 malocclusions, who were within the age range of 11-13 years and were treated by growth modification. Initial and final cephalograms were analyzed by Dolphin software premium 11.8. In addition, 7 cephalometric variables including SNA, SNB, ANB, SN-GOGN, inter-incisal angle, mandibular body length, and overbite were measured in traced cephalograms. Finally, treatment changes in each group were analyzed by paired t test and between-group comparison was assessed by independent t test. The significant level was considered as 0.05. Results: Based on the results of dentoskeletal changes in both groups, SNB, ANB, mandibular length, and overbite underwent significant changes during treatment in both groups. Further, the interincisal angle changed significantly in division 2 group (P<0.0001) and the final interincisal angle decreased significantly in class II division 1 patients (P<0.025). The results further revealed that changes in SNB and interincisal angles were statistically significantly greater in division 2 group compared to division 1 group (P<0.021 and P<0.012, respectively). Finally, there was no statistically significant difference between the groups regarding the other variables. Conclusions: Overall, mandibular position changes more in class II division 2 patients and the treatment appears to be more successful in this group.
Food and Non-Food Prices Nexus in Developing Economies: Disaggregated Panel Data Analysis

In this paper, an attempt has been made to examine a new transmission mechanism of inflation that is effect of food prices on non-food prices. The panel generalized method of moment (GMM) has been employed on the panels of 47 developing countries disaggregated by income, i.e. low-income, lower-middle income and upper-middle income countries. The data-set covers the time period of 2000 to 2014. The panel Granger causality tests like error correction model, panel Stacked and Dumitrescu Hurlin test of causality are also employed to see the direction of causality between food prices and non-food prices. The results of panel GMM estimation indicate that food prices positively affect non-food prices in all the income groups of economies. The causality direction is also found from food prices to non-food prices in these groups of economies. It concludes that inflation transmission mechanism of food prices to non-food prices exists in developing countries. For policy making, it is suggested that any attempt to control inflation in developing economies, one component of anti-inflationary policy should be to control the food prices.
Short Term Electricity Price Forecasting by Hybrid Mutual InformationANFIS-PSO Approach

: In a competitive electricity market, an accurate short term price forecasting is essential for all the participants in market as a risk management technique. For both spot markets and long-term contracts, price forecastis necessary to develop bidding strategies or negotiation skills in order to maximize benefit. This paper proposes an efficient tool for short-term electricity price forecasting with a simple model and acceptable computation time by combining several intelligent methods. Using inference, Adaptive Network-based Fuzzy Inference System (ANFIS) is used to determine the nonlinear relation between large quantities of input variables and forecasted price (output variable). To decrease the complexity and improve the accuracy, Mutual Information (MI) technique is used to efficiently select the best set of input variables which have important information concerning forecasted price. Moreover, Particle Swarm Optimization (PSO) algorithm with new strategy in choosing the particles is adopted to tune ANFIS parameters more precisely. To evaluate the accuracy and performance, the proposed hybrid Mutual Information-ANFIS-PSO (MIAP) methodology is implemented on the real world case study of Spanish electricity market. The results show the great potential of this proposed method in fast and accurate short-term price forecasting in comparison with some of the previous price forecasting techniques.
Re-structuring the Revised Two-Factor Study Process Questionnaire (R-SPQ-2F) in the context of pre-service teachers in Malaysia

The Revised Two-Factor Study Process Questionnaire (R-SPQ-2F) is a 20-item questionnaire used to measure higher education students’ deep and surface approaches to learning. The purpose of the present study was to validate the Malay language version of the R-SPQ-2F factor structure, based on two data sets of Malaysian pre-service teachers. The methods used were: (a) an exploratory factor analysis (EFA) with an oblique rotation with the first data set (n = 221), and (b) a confirmatory factor analysis (CFA) with the second data set (n = 231). The factor analytic results showed a four-factor model of the scale data which supported the scale’s original factor structure but marked differences were found in terms of the relationships between items and factors (items had moved to different scales). Based on the EFA, the scales were renamed to better reflect the meaning of each factor, but the two main constructs of deep and surface approach remained the same. In the crossvalidation study, the results of the CFA suggested that out of three structural models, the best fit was achieved by a first-order four-factor model. Explanation of the Malay language R-SPQ-2F re-specified factor structure for Malaysian pre-service teachers are discussed as it is important that researchers do not blindly import measures used in another culture without adaptation. Included are implications for the Malay language R-SPQ-2F.
Are Cryptocurrencies Affected by Their Asset Class Movements or News Announcements?

This study analyses whether returns of top market capitalised cryptocurrencies are affected by their movements or major global macroeconomic news. Daily data are collected for the leading 10 cryptocurrencies from July 2017–December 2018. This study, (i) tests whether lagged variables can help predict other variables’ returns through a vector autoregression (VAR) model, (ii) analyses the response of cryptocurrencies to one standard deviation shock on Bitcoin’s returns, and (iii) decomposes factors that contribute to variance and tests for structural breaks. Findings show that most cryptocurrencies do not significantly affect other variances, except for Monero, which represented between 19% and 45% of the variances of five cryptocurrencies. Autoregressive (AR) models are superior in forecasting one day ahead return forecasts, compared to the VAR model, whereas the random walk (RW) model ranked last. Although remarkable structural breaks are observed via impulse response functions during December 2017–January 2018, no major news announcements were released on the same day the breaks occurred. Overall, this study suggests the need for high-frequency cryptocurrency prices to tackle the issue of the relationship between intraday news release and cryptocurrencies.
Ameliorative Effect of Pleurotus ostreatus on Lipid Levels and Atherogenic Indices in Hyperlipidemic Rats

Aim: To evaluate the effects of Pleurotus ostreatus on the lipid profile and atherogenic indices in Hyperlipidemic rats. Study Design, Place and Duration of Study: This case-control study was done for 60 days between March and April, 2017 at the department of Medical Laboratory Science and Department of Chemical Pathology, Babcock University, Ogun State, Nigeria. Methodology: Thirty male wistar rats weighing 117-130 g were divided randomly into 3 groups: Normolipidemic (NL) rats (fed with standard rodent chow), Hyperlipidemic (HL) rats (fed with Original Research Article Nwobi et al.; AJRIMPS, 8(3-4): 1-6, 2019; Article no.AJRIMPS. 53354 2 standard rodent chow + duck yolk and reused oil), Hyperlipidemic Treated (HL+T) rats (fed with standard rodent chow + duck yolk and reused oil + 5% Pleurotus ostreatus powder). Changes in the animal body weights were measured in this study. Serum was obtained from fasting blood samples for the standard biochemical analyses of total cholesterol (TC), triglycerides (TG), High density lipoprotein cholesterol (HDL-C), creatinine, urea, Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST). Low density lipoprotein (LDL), very low density lipoprotein (VLDL), TC/HDL, LDL/HDL and Log (TG/HDL) ratios were calculated. Results: The HL+T rats compared to HL rats had significantly reduced body weight, TC, TG, LDL, VLDL, TC/HDL, LDL/HDL and Log(TG/HDL) by 19.59%, 14.38%, 15.82%, 25.52%, 15.83%, 28.89%, 20.24% and 27.27% respectively (p ≤ 0.05) but recorded no significant change in HDL-C (p > 0.05). Creatinine, urea, AST and ALT did not show any significant change in HL rats and HL+T rats (p > 0.05). Conclusion: Treatment of hyperlipidemic male wistar rats with Pleurotus ostreatus reduced body weight, lipid levels (TC, TG, LDL, VLDL) and atherogenic indices (TC/HDL, LDL/HDL, Log (TG/HDL)) and appeared to have no detrimental effects on the liver and kidneys. These findings may provide insights and scientific basis for the promotion of the use of Pleurotus ostreatus in controlling hyperlipidemia and associated complications.
Comparative Analysis of Clinical History, Sociodemographic, Behavioural Factors and Cardiovascular Risk Factors among Hypertensive in Awka, Nigeria

Background: Hypertension is a major modifiable risk factor for cardiovascular diseases and research studies done in Nigeria observed prevalence rate of hypertension to range from 26.4% to 36.9%. Aim: This study aimed to evaluate the sociodemographic, clinical, behavioral and cardiovascular risk factors associated with hypertension in Awka, South East, Nigeria. Methods: Cross-sectional study was used.391 participants aged from 18 years above were recruited for this study. Structured questionnaires were constructed in line with World Health Organization Step approach was utilized for data collection. Hypertension was defined as systolic blood pressure ≥ 140 mmHg and Diastolic blood pressure ≥ 90 mmHg. Chi-square and independent sample T test were used to test comparison between two groups. Results: The mean age of the subjects was 45.87±17. 49.33. 7% of retired subjects has the highest prevalence was statistically associated with hypertension in occupational status of the subjects, marital status was statically significant with hypertension and prevalence of hypertension among the subjects were 81.1%, 8.5%, 8.6% for married, single and divorcee respectively, (P<0.001) and also no association was observed between hypertension and subjects that occasionally use high salt often(x2=0.341, P>0.001). Conclusion: The study showed that age, family history of hypertension, consistent increase in blood pressure, occupational and marital status are associated risk factors of hypertension in Awka, South East, Nigeria. There is need to create awareness on the risk factors and encourage changes in sedentary life style.
Direct and correlated responses from selection for early sexual maturity in Japanese quail

Base population after third generation of selection conclude total number of 788 birds at 6 weeks of age were used in this study and randomly assigned to two mating groups. First groupe was selected for early age at sexual maturity (EASM) and the second was as a control line (RBC) to study the direct and correlated responses for this direct of selection. The results can be summarized as follow: EASM was highly significantly (P≤0.01) decreased from 39.54 days to 35.23 days. The actual and the expected selection differentials were 2.52 and 2.29g / generation. The actual response to selection in the (EASM) line was1.46g /generation. a- Heritability of EASM estimated ranged from 0.29 to 0.35 b- The realized heritability ranged from 0.44 to 0.79. c- Correlated responses for EASM were as follow: d- BW0, BW2, BW4, and BW6 increased significantly (P≤0.05) from 9.95, 40.58, 98.84 and 170.47g to 10.47, 47.01, 101.87 and 181.42g. e- Egg weight (EW) was decreased (P≤0.05) from 10.74g to 10.04g. But Body weight at sexual maturity (BWSM) was increased from 136.32 g to 139.32 g. Total egg weight at first ten week (TEN10) decreased from 55.25eggs to 54.25egg. f- Fertility (FR %) was increased (P≤0.05) from 80.58% to 80.90%. and Hatchability (HA %) were increased (P≤0.05) from 70.42% to 70.92%. g- Meat, dressing and giblets % were increased significantly (P≤0.05) from 42.33, 62.04 and14.27% to 43. 76%, 63.99 and 14.99%.
Corn silage supplementation for dairy cows grazing annual ryegrass at two pasture allowances

Corn silage supplementation for dairy cows grazing in temperate annual pastures has rarely been investigated. The aim of this study is to compare two supplementation levels (0 and 4kg dry matter [DM]/day of a 7:1 mixture of corn silage and soybean meal) in dairy cows strip-grazing annual ryegrass (Lolium multiflorum Lam.) at two pasture allowances (PA, low= 25 and high = 40kg DM/d at ground level). The study was carried out according to an incomplete 4 × 3 Latin square design, using 12 cows and three experimental periods of 12 days. The green leaves allowances were only 4.9 and 8.5kg DM/d at the low and high PA, respectively. The total DM intake and milk production increased in supplemented cows compared to un-supplemented cows at the low PA, but were similar between supplementation levels at the high PA. The PI was unaffected by the PA, whereas the substitution rate was 0.68 in cows at the low PA and 1.35 in cows at the high PA. Corn silage supplementation may improve the total DM intake and milk production of dairy cows grazing in temperate annual pastures, but only at a low PA.
An Analysis of the Pre-service Teachers’ Teaching Anxiety and Coping Strategies: A Turkish Elementary School Context1

The aim of this study is to investigate the construct of English as a foreign language (EFL) pre-service teachers’ feelings of anxiety before, while, and after experiencing teaching English within a Turkish elementary classroom setting. Specifically, this intrinsic qualitative study investigates the anxiety sources for pre-service teachers in their practicum experiences and the ways they adapted to cope with these anxiety-provoking sources. The data were triangulated by consulting three sources of information(e.g., open-ended questions in the self-report forms, open-ended questions in the peerreflection forms, and diaries) relating the 32 participants’ practicum experiences. The findings indicated that prior to practicum experience, classroom management was the major teaching anxiety source and the “the most” frequently employed coping strategy was to consult their mentors and cooperating teachers. However, during the actual practicum experience, being observed by a mentor was the most common concern and to cope with it, each participant developed different coping mechanisms. Finally, receiving negative feedback from mentors after the post-practicum experience decreased self-confidence and to compensate, pre-service teachers frequently asked mentors to provide further advice. It is implicated that teacher education programs raise the awareness of pre-service teachers of the potential challenges awaiting them in the practicum experience and equip them with coping strategies.