Miracle-dz/UniFAR-FTUs huggingface dataset:
Multi-Objective Optimization of Massive MIMO 5G Wireless Networks towards Power Consumption, Uplink and Downlink Exposure

The rapid development of the number of wireless broadband devices requires that the induced uplink exposure be addressed during the design of the future wireless networks, in addition to the downlink exposure due to the transmission of the base stations. In this paper, the positions and power levels of massive MIMO-LTE (Multiple Input Multiple Output-Long Term Evolution) base stations are optimized towards low power consumption, low downlink and uplink electromagnetic exposure and maximal user coverage. A suburban area in Ghent, Belgium has been considered. The results show that the higher the number of BS antenna elements, the fewer number of BSs the massive MIMO network requires. This leads to a decrease of the downlink exposure (−12% for the electric field and −32% for the downlink dose) and an increase of the uplink exposure (+70% for the uplink dose), whereas both downlink and uplink exposure increase with the number of simultaneous served users (+174% for the electric field and +22% for the uplink SAR). The optimal massive MIMO network presenting the better trade-off between the power consumption, the total dose and the user coverage has been obtained with 37 64-antenna BSs. Moreover, the level of the downlink electromagnetic exposure (electric field) of the massive MIMO network is 5 times lower than the 4G reference scenario.
Analyzing Academic Members’ Expectations from a Performance Evaluation System and Their Perceptions of Obstacles to Such an Evaluation System: Education Faculties Sample

The assesment and evaluation of academic members in faculties in a systematic way is a crucial issue because higher education institutions put a large emphasis on a transparent, efficient and successful management. This study aims to conduct a mixed (quantitative and qualitative) research about the expectations of Education Faculties’ academic members about a performance evaluation approach and the obstacles to such an evaluation system. Convergent parallel mixed method design has been preferred as research model. “Expectations from performance assessment” subscale and “barriers to performance assessment” subscale have been used as data collection tools which are developed by Tonbul (2008). Independent Samples t-test and ANOVA are used for analysis of quantitave data; and content analysis is used for analysis of qualitative data. As a result of this study, it is found out that academic members have a moderate level of expectations from a performance evaluation approach. The highest expectations belong to assistant professors while the lowest belong to professors. The mostly agreed expectations of academic members from a performance evaluation approach are found to be “developing a consensus about the criteria of an effective academician, affecting professional development of academic members positively and increasing workload of academic members”. The most frequent obstacles to a performance evaluation approach emerged as “current organizational mechanism of higher education institutions” and “workload of faculty academic members”. The scores of both expectations and obstacles significantly differ depending on “taking academic incentive, work experience in higher education, academic title and satisfaction level of academicians from their institutions”. As a result of qualitative analysis, there emerge many themes and codes related to a performance evaluation system. In “Attitude Towards Performance Approach” theme, the most frequent codes appeared to be “adopters, doubters”. In Academicians’ Priorities theme, the codes emerged as “research and publications, evaluation of quality of instruction, advisory for undergraduates and postgraduates”; In Positive Effects theme, the codes emerged as “motivation, financial support, search of quality”; In Negative Effects theme, the codes emerged as “intra-institutional rivalry, academic dishonesty”; In Obstacles theme, the codes emerged as “intense workload, lack of instrintic motivation”; and finally In Suggestions theme, the codes emerged as “more officer employment, institutional support for academic efforts and research publishings”.
The role of guidance and counseling teacher in solving students’learning difficulties in physics

Physics is one of the subjects that are considered difficult, by most high school students taking the science stream in Indonesia. Tthere are many students who have difficulty in learning this subject. Moreover, physics is one of the important subject when students want to continue their education to first tier universities in Indonesia.To overcome this problem, this paper presents a theory that can be used by Guidance and Counseling teachers in overcoming the difficulties learning physics. The theory developed in this study can be applied by the counsellor in helping the learning difficulties of the students. This theory was developed with the literature study method which was analyzed using analytical descriptive techniques with an inductive approach.
Qualitative ReseaRch: epidemiologic ReseaRch

The aim of this retrospective practice-based study was to investigate the survival of direct class II restorations placed by a group of general dental practitioners (GDPs) and to analyze the effect of practice-, patient-, and tooth/restoration-related factors. Electronic patient files of 24 general dental practices were used for collecting the data for this study. From the patient files, survival rates of 222,836 composites, amalgams, glass ionomers, and compomers placed in 61,121 patients by 67 GDPs between 1999 and 2011 were analyzed by Kaplan-Meier statistics and a multiple Cox regression. The investigated group of GDPs placed restorations with a satisfactory survival (mean AFR 10 , 4.9%; 95% confidence interval, 2.1 to 7.7), although a wide variation in annual failure rate (AFR) existed between the different operators, varying between 2.6% and 7.0%. Restorations placed in young adults (21–30 y old) survived longest, whereas they showed a shorter survival in children (hazard ratio [HR], 1.553) and the elderly (HR, 1.593). Restorations in molar teeth, restorations placed in endodontically treated teeth, and multisurface restorations are more at risk for reintervention. However, restoration size (included surfaces) has a greater impact on restoration survival in premolar teeth. For the future, improved data collection at the practice/operator, patient, and tooth/restoration level (e.g., risk assessment and diagnoses) will provide the opportunity to evaluate even more extensively the risk factors involved. Knowledge Transfer Statement: The results of this study give insight into the long-term survival of direct dental restorations and the influencing practice-, patient-, and tooth/ restoration-related variables.
DETERMINANTS OF MOTIVATION AND JOB SATISFACTION AMONG PRIMARY HEALTH WORKERS: CASE STUDIES FROM NIGERIA AND INDIA

Objective: In addition to a numerically adequate and skilled workforce, a well functioning health system relies on motivated and high performing health workers. Current efforts to motivate primary health workers, particularly in the public sector, in low-resource settings commonly focus on extrinsic measures such as better financial incentives. While these are necessary given low salaries and an expenditure-income mismatch, the role of intrinsic factors and organizational determinants need to be studied in greater detail, specific for each context, and integrated more comprehensively in such strategies. The objective of this dissertation is to explore individual and organizational determinants of motivation and job satisfaction among alternate cadres of public sector primary health workers using examples from Nigeria and India. It aims to answer the following research questions: 1. What are primary health workers’ perceptions of motivating factors in the work environment, particularly supervision and leadership, in Nasarawa and Ondo states in Nigeria? (Paper 1) 2. How does the introduction of a performance-based financing (PBF) scheme change the perceived motivation of health workers in Wamba district, Nigeria? (Paper 2) 3. What are the factors of job satisfaction among primary-level clinicians in the state of Chhattisgarh, India? What is the association between job satisfaction and intention to leave? (Paper 3)
Pengaruh Produk Domestik Regional Bruto, Inflasi, Upah Minimum, dan Jumlah Penduduk Terhadap Pengangguran di Indonesia Periode 2011 – 2017

Penelitian ini merupakan penelitian kuantitatif dengan tujuan untuk mengetahui pengaruh PDRB, inflasi, upah minimum, dan jumlah penduduk terhadap pengangguran. Data yang digunakan berupa data panel 33 Provinsi selama 7 (tujuh) tahun terhitung dari 2011 – 2017. Sumber data berasal dari website resmi Badan Pusat Statistik dan Bank Indonesia. Uji hipotesis dianalisis menggunakan program eviews 9.0. Hasil penelitian membuktikan bahwa (1) Produk Domestik Regional Bruto berpengaruh negatif signifikan terhadap pengangguran, (2) Inflasi berpengaruh negatif signifikan terhadap pengangguran, (3) Upah Minimum berpengaruh negatif signifikan terhadap pengangguran, sementara (4) Jumlah Penduduk tidak berpengaruh terhadap pengangguran. Berdasarkan hasil kajian kebijakan yang dapat diambil pemerintah untuk menekan angka pengangguran antara lain dengan melakukan penyesuaian upah minimum dan melakukan kajian lebih dalam mengenai faktor yang dapat medorong naiknya PDRB.
Correlates of psychoactive substance use among Nigerian adolescents

Context: The abuse of psychoactive substances which is one of the most important global public health problems begins in adolescence. Adolescents usually start by abusing the gateway substances. They suffer social, economic, physical, and legal consequences on account of use of substances, and this is very worrisome because of the increasing prevalence of use. Aims: The aim was to identify the characteristics of adolescents that use gateway substances. This knowledge shall be utilized in preventive programs. Settings and Design: Cross-sectional study with secondary school adolescents as participants. Subjects and Methods: Multistage sampling technique was used to select 492 respondents and the questionnaire consisted of characteristics of the adolescents, their families and schools and the alcohol, tobacco, cannabis, and stimulant use sections of the World Health Organisation questionnaire for student drug use surveys. Statistical Analysis Used: The data were analyzed using the Statistical Package for Social Sciences, and Chi-square statistics was used. Results: Having a friend who uses substance was significantly associated with tobacco, alcohol, cannabis, and caffeine use while being a male, having a family member that uses substance were significantly associated with tobacco, alcohol, and caffeine use. Older age, lack of satisfaction with the relationship with the teacher and polygamous family background were significantly associated with tobacco use. And finally, lack of satisfaction with the relationship with parents/guardians and having parents or guardians who are not religious were significantly associated with alcohol use. Conclusion: A comprehensive approach is needed to prevent the use of substances; this should target individuals, schools, families, and religious institutions.
The Structural Conduct and Performance of the Nigerian Capital Market (1991 – 2018)

The objective of this study is to examine the structural conduct of the Nigeria’s Capital Market and the effect of its performance on economic growth in Nigeria. The Nigerian Capital market was established and saddled with the responsibility of inducing a significant change in the economy. The study therefore, seeks to identify how various factors like structural operations of the market and the environmental factors affect the performance of the market and its effect on the Economy. The study adopts a time-series research design relying extensively on secondary data covering 1991 -2018. The Neo- Classical growth model as specified by Harrod-Domar which sets output as a linear function of Labour (L), Capital (K) and the index of technology (A) was augmented to contain the capital market indicators for adequate analysis. The study utilizes the method of regression analysis to analyse its data, incorporating multivariate co-integration to examine the long run relationship between the dependent variable Real Gross Domestic Product (RGDP) and the independent variables Market Capitalization (MC), Total New Issue (TNI), All Share Index (ASI) and Quoted Companies (QC). The result shows that three variables (MC, TNI, and QC) exhibit direct positive relationship, while one (ASI) exhibits inverse and statistically insignificant relationship with economic growth. It is therefore recommended that relevant regulatory agencies should focus on enhancing efficiency and transparency in the market to improve investors’ confidence. Therefore, there is the need for effective and favourable macroeconomic environment to facilitate economic growth and ensure that channels of capital market induced growth are built around effective systems. Keywords: Capital Market, Capital inflows, Market Capitalization DOI : 10.7176/JESD/10-24-14 Publication date: December 31 st 2019
International Journal of Management Sciences and Business Research, May-2022 ISSN (2226-8235) Vol-11, Issue 5

The aim of this study is to find the entities of supply chain that establish integration in supply chain activities of solar energy sector. It is précised to examine logistics, procurement and purchasing, sourcing and manufacturing phases of supply chain in explaining integrated supply chain. The paradigm of this research is past-positivism as it initiates a newer relationship between underlying variables. The sample size for the data collection was chosen by random sampling technique and a number of 203 respondents participated for primary data. The respondents were selected from top 12 solar energy companies in Karachi, where manufacturers, their suppliers and logistics partners were surveyed with minimal exposure of the researcher in a non-contrived environment. This research provides evidences for positive and negative significant impacts of sourcing and manufacturing in creating supply chain integration respectively, while the impacts of logistics, procurement and purchasing impacts were positive but insignificant. This research is beneficial for students who are pursuing their majors in supply chain and it also provides some measures for those who are involved in solar energy sector to improve their manufacturing deficiencies in order to positively influence integration in supply chain. Further, the data of this research is analyzed through SMART-PLS and SPSS. The data is found reliable and all the constructs are found discriminant under all statistical tools. Moreover, linear and multiple regressions were also analyzed to conclude the path coefficients and degree of influence between variables.
Returning children home from care: What can be learned from local authority data?

International Human Rights and child rights conventions as well as U.K. wide legislation and guidance require that children in care should be returned home to one or both parents wherever possible. Reunification with parents is the most common route out of care, but rates of re‐entry are often higher than for other exit routes. This study used 8 years of administrative data (on 2,208 care entrants), collected by one large English local authority, to examine how many children were returned home and to explore factors associated with stable reunification (not re‐entering care for at least 2 years). One‐third of children (36%) had been reunified, with adolescent entrants being the most likely age group to return home. Three quarters (75%) of reunified children had a stable reunification. In a fully adjusted regression model, age at entry, being on a care order prior to return home, staying longer in care, being of minority ethnicity, and having fewer placements in care were all significant in predicting chances of stable reunification. The results underline the importance of properly resourcing reunification services. The methods demonstrate the value to local authorities of analysing their own data longitudinally to understand the care pathways for children they look after.
A study on acute appendicitis in a tertiary care hospital in Tamil Nadu, India

Background: Acute appendicitis is a common problem in children and early adult life. Appendicectomy is immediate or emergency procedure to reduce morbidity and mortality. The present study was conducted to find out clinical profile of acute appendicitis and complications of appendicectomy. Methods: This observational study was conducted among 100 patients diagnosed as acute appendicitis in tertiary care hospital during the year from 2001 to 2002. The clinical profile like age, sex, symptoms of the patients and post-operative complications were recorded. All patients underwent appendicectomy and followed post operatively. Results: Out of hundred patients, 55% were male and 45% were female. Nearly 71% of the patients belonged to the age group of 15-30 years.100% had pain abdomen, 81% had fever and 75% had vomiting. The post-operative complication was 3%. Conclusions: Acute appendicitis is very common in younger age groups shows that whenever young patients present with acute abdominal pain may be considered acute appendicitis. The complication of appendicectomy is very minimum and gives good prognosis.
Joint bit and power loading for adaptive MIMO OFDM VLC systems

Visible light communication (VLC) is a short‐range wireless access technology based on the dual use of illumination structure. The frequency‐selective characteristics of VLC channels motivate the use of orthogonal frequency division multiplexing (OFDM). In addition, the presence of multiple light sources in most indoor spaces makes multiple‐input–multiple‐output (MIMO) communication techniques a natural solution for VLC systems. In this paper, we investigate the design of an adaptive MIMO OFDM system. Specifically, we propose adaptive bit and power loading for a direct current–biased OFDM VLC system with MIMO mode switching between repetition coding and spatial multiplexing. We formulate the adaptive algorithm design as an optimization problem where we aim to maximize spectral efficiency through the proper selection of modulation order, power level, and MIMO mode, while satisfying a targeted bit error rate. To solve the underlying NP‐hard problems, we use a simulated annealing heuristic. We present Monte Carlo simulation results for a typical indoor setting and illustrate the performance improvements through link adaptation.
The Challenge to Deliver Cost Effective Care for Patients with Gestational Diabetes Mellitus

The global rise in obesity and gestational weight gain, along with recent trials demonstrating improved pregnancy and neonatal outcomes associated with the treatment of mild hyperglycaemia, have resulted in a clinical challenge to deliver cost effective healthcare to manage the epidemic of Gestational Diabetes Mellitus (GDM). Whilst clinicians now have clear criteria by which to diagnose GDM, and the glycaemic targets to achieve, less clear are the pathways to achieve these outcomes in a cost effective manner. The value of using allied health providers such as dieticians compared to less trained patient educators, the effectiveness of individualised versus group dietician counselling, the role of antenatal investigations such as CTG and ultrasound, the degree of monitoring of maternal blood sugar level, the type of medications to complement dietary therapy, along with policies on delivery and postnatal care, all need to be refined through studies or audits. Having identified the problem and established diagnostic and treatment targets, the next challenge is to provide evidence-based, cost-effective care.
The Level of Competency Knowledge in Safety Training among Construction Personnel

Competency in safety is important for construction personnel and it is compulsory for all construction personnel in Malaysia to attend safety training. A literature review of the recommended training module revealed gaps in evaluating the effectiveness of competency knowledge among 200 construction personnel. Therefore, this article investigates the level of competency knowledge among construction personnel towards construction accidents based on safety training in Malaysia's construction industry. A structured, self-administered questionnaire was designed and used to assess the level of competency knowledge in safety training. For each participant, the knowledge score was calculated by dividing the sum of correct answers by the total number of correct responses. The average knowledge score for all participants was 92%, whereas designers and site supervisors obtained better scores (94% and 91%, respectively) than contractors (90%). The knowledge scores among all construction personnel are not significantly associated with age and experience. Results indicated that there were nine topics with a significant difference in competency knowledge (p < 0.005) which were transportation and mobile plant, installation of steel frame, roof work, personal protective equipment (PPE), working in the water area, welding and cutting, manual work, noise and vibration and accident prevention.
The erosion of glaciated mountains: evidence from hypsoclinometry

Mountain glaciation involves the erosion of cirques and troughs, which increase steep slopes but also produce gentle slopes in cirque floors and trough floors. This is expected to increase the variability of slope gradients at related altitudes. Taking a whole mountain range, its distributions of altitude and slope can be analysed to establish a signal of glacial modification. Frequency distributions of altitude (hypsometry) and gradient (clinometry) alone do not seem adequate. Taking these two variables together – hypsoclinometry, plotting slope gradient against altitude – is more promising. Frequency distributions of slope gradient at different altitudes are exemplified here for mountain ranges in British Columbia and Romania, together with altitudinal variations of steep or gentle slopes. Cirque headwalls give the clearest morphometric signature of glaciation. Steep (especially the steepest) slopes are concentrated at cirque altitudes, increasing mean, median, standard deviation (SD) and inter-quartile range (IQR) of gradients, especially above cirque floors. There is only a small increase in SD and IQR at cirque floor altitudes. Hypsometric maxima and increased proportions of gentle slopes at cirque floor altitudes are clear only in mountain ranges densely occupied by cirques. This relates to the small proportion of each cirque (about 28%) occupied by the floor. Concentrations of steep slope aspects in directions favoured by local glaciers provide further evidence of glacial modification. The most general morphometric effect of glaciation, however, is the increase in steep slopes at cirque headwall altitudes. Thus it is possible to rank mountain ranges by degree of glacial modification.