Miracle-dz/UniFAR-FTUs huggingface dataset:
Bandwidth enhancement of a circularly polarized tapered crossed slot antenna with corner parasitic directors

This paper presents a single‐feed wideband circularly polarized (CP) antenna with tapered crossed slots and corner directors. According to the multi‐mode resonance concept, the antenna uses two identical cross placed Vivaldi‐like tapered slots as the wideband radiating elements, and four rectangular parasitic patch directors are connected on each corner of the ground for further enhancing the bandwidth. A simple second‐order stepped microstrip line with a via on the other side of the substrate is used to feed the antenna. Two pairs of capacitors and inductors are placed on each slot to realize a 90° phase difference for CP operation. The proposed antenna is designed, fabricated and measured. Simulation results are in good agreement with the measured results that demonstrate a 10 dB impedance bandwidth (IMBW) from 1.98 to 5.71 GHz (3.73 GHz, 97.01%) and a 3 dB axial ratio bandwidth (ARBW) from 2.13 to 3.91 GHz (1.78 GHz, 58.94%). The antenna outperforms most of the reported cross slot antennas for its wide IMBW and ARBW.
Autoclaving of alkali-activated materials

Alkali-activated materials are amorphous materials that look like natural stone or a concrete structure. As in the case of concrete, on the surface of alkali-activated materials, a white coating appears in the form of efflorescence. For conventional efflorescent concrete, the reaction between Ca(OH)2 with water and CO2 is generally harmless, except for the discolouration. In the case of alkali-activated materials, efflorescence can be a big problem, especially if they are exposed to moisture or in contact with water. The white efflorescence on the surface of the materials is sodium carbonate heptahydrate Na2CO3·7H2O [1]. Various chemicals to prevent primary and secondary efflorescence can be used to reduce the appearance of the efflorescence. In the case of alkali-activated materials, this is a more complex process. The following paper proposes the use of hydrothermal processing during alkali-activated materials production. Hydrothermal treatment in an autoclave significantly reduced the appearance of efflorescence on the alkali-activated materials surfaces.
Knee society score, mechanical tibiofemoral angle and the Fujisawa point: Do these variables determine a successful outcome of a high tibial osteotomy using an ilizarov fixator about the knee for medial compartmental osteoarthritis

Introduction: Medial compartment Osteoarthritis is an age related chronic disturbance of weight distribution over the articular surface of the knee joint. The compensatory Varus deformity which develops leads to “bowing” of the legs. Traditionally, treatment involved conservative regimen of analgesics, physiotherapy and lifestyle modifications. Before the advent of Arthroplasty, Osteotomies were the mode the treatment. The treatment modality is divided into two phases. The first phase involves in correcting the mechanical axis deviation, through a high Tibial Osteotomy. The second phase involves stabilizing this accomplishment with an Ilizarov external fixator and achieving the co-linearity of the Mechanical axis of the lower extremity through angular correction using distraction Osteosynthesis. Aim: The aim of present study was to evaluate the results of High Tibial osteotomy using Ilizarov technique in medial compartment osteoarthritis of the knee. Materials and Methods: In this prospective study, thirty cases of medial compartment osteoarthritis of the Knee with genu Varus deformity were treated using monofocal corticotomy and ring fixator. Bone and functional results were evaluated clinically using the Knee Society score (knee score and functional score) and radiologically using the mechanical tibiofemoral angle and the Mechanical axis deviation from the Fujisawa point. Results and Discussion: In the present series of thirty cases, there were 20 females and 2 males with a maximum age of 52 years and minimum of 32 years. There was a predominance of Varus deformity seen on the right knee. The mean follow up was 30 months. The results observed were 60% excellent, 33% fair and 6.7% poor by knee society score. The mean knee society score (Knee score) at 12 months was 71.27 ± 5.32 (p<0.001) and at 24 months was 78± 6.42(p<0.001). The mean Tibio femoral angle was 3.40 ± 1.07o of valgus (p˂0.001) at 12 months postoperatively and at 24 months was 3.7 ± 1.35o of valgus (p˂0.001). The mean Mechanical axis deviation from Fujisawa point was 0.76± 0.42 millimetres (p˂0.001) at 12 months postoperatively and 0.75 ± 0.45 millimetres (p˂0.001) at 24 months postoperatively. The correlation between Knee society score and the Tibiofemoral angle was significant at 12 months (r= 0.368) compared to the correlation between Knee society score and the deviation from Fujisawa point which was non significant at 12 months(r= -0.340) and was significant at the end of 24 months (r= -0.552). At the end of 24 months, 93.7% of the cases showed excellent to good results after the intervention and only 6.7% of the cases showed poor result. Conclusion: In the light of these results, it was concluded that high Tibial osteotomy by Ilizarov technique, despite few unfavourable results and complications, can be used to treat angular deformity correction about the knee.
Expected impacts of climate change on tree ferns distribution and diversity patterns in subtropical Atlantic Forest

Tree ferns are common elements in the Atlantic Forest domain, sometimes reaching more than half of total dominance at forest sites. Just as most groups, climate change might impact the distribution and diversity of tree ferns. To investigate the extent of these impacts in the subtropical Atlantic Rainforest, we measured the changes in species distribution, α- and β-diversity between current climate and future climatic scenarios for 2050. Most tree ferns species tend to lose their distribution area. Hence, species richness tends to decrease in the future, especially in the Rainforest sites. In general, β-diversity tend to not change on the regional scale, but some sites can change its relative singularity in composition. Our results show that climate change can impact distribution and α-diversity of tree ferns, but with no trend to cause homogenization in the tree ferns of the study area. Protected Areas (PAs) in our study region manage to withhold more α-diversity than areas without PAs — the same applies to β-diversity. Our study offers a new light into the effects of climate change in tree ferns by integrating the evaluation of its impacts on distribution, α- and β-diversity in all study areas and inside PAs.
Real-Time Filtering and ECG Signal Processing Based on Dual-Core Digital Signal Controller System

ECG devices are increasingly used in the monitoring and timely detection of cardiovascular abnormalities. One of the biggest challenges for ECG device designers is to eliminate noise from the surrounding environment to obtain high-quality and real-time ECG signals. A microcontroller usually has low processing speed, so it is not appropriate for real-time processing of ECG signals with high sampling frequency. Processing continuous signals requires a high processing speed or processor that can be used with many partial processing hierarchies. In 2018, Microchip Technology Inc. launched a new family of 16-bit digital signal controllers (DSCs) with two cores: the master core can be operated at 180 MHz and the slave core can be operated at 200 MHz. The new DSC family is suitable for mobile application systems, such as ECG devices, which can collect and process data in real time with a process hierarchy. In this paper, we present an application of the two cores of DSCs in collecting and processing ECG signals in real time. In addition, we implement an infinite impulse response (IIR) filter to eliminate noise from the surrounding environment. Specifically, the master core collects and implements a high-pass IIR filter with five poles, and the slave core implements the low-pass IIR filter with seven poles and sampling frequency of ECG signals up to 400 Hz.
Factors Influencing Adherence to Antiretroviral Therapy among PeopleLiving With HIV/AIDS at ART Clinic in Jimma University Teaching Hospital,Southwest Ethiopia

Background: Ethiopia is one of the Sub-Saharan Africa countries highly affected by HIV epidemics. Antiretroviral therapy (ART) alters and reduces progression to AIDS and prolongs and improves the quality of life among HIV infected population. For ART, at least 95% adherence is required to prevent the development of drug resistant viral strains. Non-adherence to ART may result in regimen failure, immune suppression and emergence of resistant viral strains, limited future treatment options, and higher treatment costs. Objective: The aim of this study is to assess factors influencing ART adherence among PLWHA on ART treatment in JUTH ART clinic. Method: A cross-sectional study was conducted on a sample of 221 PLWHA who had follow-up at JUTH ART clinic from February to March 2015. Data was collected through interview using structured questionnaire by graduating nursing students. Data was cleared and checked for completeness and compiled on excel sheet for analysis. Chi-square test was calculated at 5% level of significance to see the association between independent and dependent variables and p-value of <0.05 was considered statistically significant. Finally the result was presented in text statement, figure and tables. Results: Of the total 221 participants more than half 153 (69%) were greater than 30 years, 144 (65.15%) were females, 167 (75.56%) were urban dwellers, 169 (76.43%) were Oromo ethnic group. Overall from the study participants 80 (36.19%) had poor adherence and 141 (63.8%) had good adherence to their ART treatment. Factors like educational status, residence, occupation and alcohol addiction are significantly associated with the level of adherence to ART treatment. Conclusion and recommendation: Although the prevalence of HIV/AIDS is reducing adherence remains as one of the challenges the control of HIV/AIDS where only around 2/3rd of PLWHA were well adhered to ART. Based on the finding of this study, JUTH should counsel patients about advantage of taking ART drugs properly, risk of not taking the medicines appropriately, the method how to remember the time of taking drugs and other factors that influence ART adherence.
IMPLEMENTASI SISTEM PAKAR DIAGNOSA PENYAKIT EPISTAKSIS PADA MANUSIA MENGGUNAKAN METODE HYBRID CASE BASED DAN RULE BASED REASONING

Epistaksis diperkirakan sering dijumpai sehari-hari dan dapat terjadi pada semua umur dengan banyak variasi penyebabnya. Epistaksis terbanyak dijumpai pada usia 2-10 dan 50-80 tahun, sering dijumpai pada musim dingin dan kering. Tidak ada perbedaan yang bermakna antara laki-laki dan wanita. Epistaksis anterior sangat umum dijumpai pada anak dan dewasa muda, sementara epistaksis posterior sering pada orang tua. Untuk itu, dibuatlah sebuah sistem pakar yang dapat mendiagnosa lebih dini penyakit epistaksis. Sistem pakar yang merupakan salah satu cabang dari Artificial Intelligence yang berusaha mengadopsi pengetahuan manusia ke komputer, sebuah sistem yang bekerja seperti layaknya seorang ahli di bidangnya sehingga dapat membantu permasalahan yang ada dalam hidup, membuat penggunaan secara luas knowledge yang khusus untuk penyelesaian masalah tingkat manusia yang pakar. Sistem pakar mendiagnosa penyakit epistaksis ini bertujuan untuk mengetahui bagaimana cara mendiagnosa penyakit epistaksis pada manusia sehingga dapat dilakukan penanganan yang tepat sesuai dengan ciri-ciri yang terdapat pada penyakit epistaksis. Didalam penerapan sistem pakar ini dibantu dengan metode Hybrid cased based. Metode Hybrid case based adalah sebuah sistem atau teknik yang digunakan untuk menggunakan kombinasi (hybrid) metode case-based reasoning dan rule based reasoning dalam pengambilan keputusan yang terbaik dari sejumlah alternatf, pengukuran similaritas digunakan untuk menghitung nilai kesamaan seberapa dekat jarak suatu kasus lama dengan kasus yang baru. Dari hasil yang didapat, dengan menerapkan metode Hybrid cased based dan rule based reasoning didapat akurasi lebih tinggi dan hasil yang lebih baik. Kata Kunci : Sistem Pakar, Epistaksis, Hybrid, Case Based Reasoning, Rule Based Reasoning.
TUBERCULOSIS CONTROL: PERSPECTIVE AND PROGRAMMES

Tuberculosis continues to be a major adversary of human health and life since time immemorial. The expanding AIDS pandemic has gravely boosted incidence,prevalence, and severity of tuberculosis. Two decades earlier, therefore, the WHO has proclaimed tuberculosis as an emergency in health care. The disease is integrated with weak spots of human living, environment, habits and socioeconomic profile. Mycobacteria are essentially fought with drugs and development of resistance to antitubercular drugs is a great medical challenge. The traditions of prevention and control of tuberculosis are historically established and continue to progress in parallel to unending disease burden. Perpetual adaptations of strategies for control exemplifies holistic understanding in medicine and particularly tuberculosis.In the scientifically advanced but economically modest national context, tuberculosis control programmes remain major frontier of medicine. This article attempts to briefly overview the context.
Numeracy students' perspectives on a new digital learning tool at a South African university

Students thrive in learning environments in which they stay engaged, interested and motivated. MindTap Math Foundations, a digital learning tool, claims to bring elements from the interactive, gamified world to transform learning so that students stay engaged, persist through challenges, feel more supported and connected to instructors, other students, as well as their own learning experience. A South African university was the first higher education institution in South Africa to make use of this personalised learning system. A survey was employed to assess the effectiveness of MindTap Math Foundations as a digital learning tool. The focus of the article is on the analysis of the open-ended questions in the survey. The findings of this research support the claims Cengage make regarding the platform’s benefits. Participants’ responses revealed that the new digital learning tool is generally perceived as positive and beneficial for learning numeracy. Students’ feedback also provided ideas and proposals for potential enhancement. Through students’ experiences shared it was possible to pinpoint the strengths and challenges about aspects needing consideration and improvement.
Climate adaptation on the crossroads of multiple boundaries. Managing boundaries in a complex programme context

ABSTRACT Programme management is increasingly used in The Netherlands to realize more integrated regional development, where different sectoral policy objectives are combined. To understand how integration of different objectives is realized in programme management approaches, it is important to have in depth knowledge on how actors manage social, cognitive and physical boundaries. Therefore, this article analyses how actors manage boundaries in a regional integrative programme. Within this case we focus on two integration attempts: one which has succeeded relatively well and one which was less successful. The analysis shows the importance of boundary spanning actions, such as jointly working on strategy documents, organizing events where actors can formally and informally interact, and the activities of a political change agent. Adding to previous insights, we find four additional explanations for successful integration which shed new light on how boundaries can be best managed in future programmatic approaches: the influence of contextual factors on boundary management and its success, the need to address both the social and cognitive dimension of boundaries, the need to make the programme attractive for the actors governing the issues it wants to integrate with, and the role of boundary drawing to create an understanding and respect for boundaries.
Modélisation multivariée de variables météorologiques

La production d'energie renouvelable et la consommation d'electricite dependent largement des conditions meteorologiques : temperature, precipitations, vent, rayonnement solaire. Ainsi, pour realiser des etudes d'impact sur l'equilibre offre-demande, on peut utiliser un generateur de temps, c'est-a-dire un modele permettant de simuler rapidement de longues series de variables meteorologiques realistes, au pas de temps journalier. L'une des approches possibles pour atteindre cet objectif utilise les modeles de Markov cache : l'evolution des variables a modeliser est supposee dependre d'une variable latente que l'on peut interpreter comme un type de temps. En adoptant cette approche, nous proposons dans cette these un modele permettant de simuler simultanement la temperature, la vitesse du vent et les precipitations, en tenant compte des non-stationnarites qui caracterisent les variables meteorologiques. D'autre part, nous nous interessons a certaines proprietes theoriques des modeles de Markov cache cyclo-stationnaires : nous donnons des conditions simples pour assurer leur identifiabilite et la consistance forte de l'estimateur du maximum de vraisemblance. On montre aussi cette propriete de l'EMV pour des modeles de Markov cache incluant des tendances de long terme sous forme polynomiale.
La Semántica de las Imágenes y el Análisis de su Contenido

the images transmit information in different ways, the description can be referring to the shape of objects, colors, textures; however, they can also convey concepts, which will be formed by the set of objects present in an image. In this work, an image description approach is presented from the semantic perspective and is evaluated through a lexical-syntactic analysis to verify that the descriptions given are part of the defined language, so a syntactic verification module is used which turned out to be very useful since the input data will not always belong to the work set, although it is an adaptable model and with growth possibilities, it is necessary to define the data to work; Therefore, the syntactic verification avoids “noise” to the model to ensure that the classes that enter are a valid class and a refinement of the descriptions can be made.
Genetic testing for vascular Ehlers-Danlos syndrome and other variants with fragility of the middle arteries

Abstract Ehlers-Danlos syndrome (EDS) is an umbrella term for various inherited connective tissue disorders associated with mutations in genes involved in extracellular matrix formation. “The 2017 International Classification of Ehlers-Danlos Syndromes and related disorders” identifies 13 clinical types with mutations in 19 distinct genes. The present module focuses on forms with major vascular involvement: vascular EDS (vEDS) caused by heterozygous mutations in COL3A1, “vascular-like” EDS (vlEDS) caused by recurrent mutations in COL1A1, classical EDS with vascular fragility associated with heterozygous mutations in COL5A1, and kyphoscoliotic EDS associated with recessive variations in PLOD1 and FKBP14. The overall prevalence of EDS is estimated between 1/10,000 and 1/25,000 and vEDS accounts for about 5 to 10% of all EDS cases. This Utility Gene Test was prepared on the basis of an analysis of the literature and existing diagnostic protocols. Molecular testing is useful for diagnosis confirmation, as well as differential diagnosis, appropriate genetic counselling and access to clinical trials.
Prevalence of Kidney Dysfunction among Orthopaedic Patients in Northwestern Nigeria

Kidney dysfunction in orthopaedic cases may be as a result of kidney injury due to fracture, burns, osteomyelitis, spinal injury, spinal tuberculosis, sickle cell disease and various forms of arthritis. This study aimed at evaluating the biomarkers of kidney dysfunction among patients attending National othropeadic hospital Dala Kano. It is a hospital based prospective study conducted on a total of one hundred (100) subjects; sixty (60) orthopaedic patients and forty (40) apparently healthy individuals between the ages of 20-80 years among both sexes. Serum urea, creatinine, uric acid and chloride were estimated by spectrometric methods; sodium and potassium by flame photometric method; bicarbonate by titrimetric method while eGFR and BMI were calculated. The number of males 43(71.7) was higher than that of females 17(28.3). The overall prevalence of kidney dysfunction is 1.7%. Kidney dysfunction was found among gouty arthritis patients within the age group of 61-80 years, however none was found among 20-40 and 41-60 years. There was significant difference (p<0.05) in mean serum potassium (4.0±04 and 3.8±0.4 mmol/L), eGFR (188±54 and 152±33 ml/min/1.73m 2 ) and BMI (21.28±4.4 and 25.48±5.6 kg/m 2 ) between males and females. The prevalence of Kidney dysfunction in orthopaedic patients was found to be higher in males than females and increasing with age {(20-60 (0%); 61-80 (10%)}, however, most of the biomarkers of kidney function are irrespective of gender.
Wide complex tachycardia – diagnostic and therapeutic challenges

Dilated cardiomyopathy is associated with ventricular arrhythmias and with an increased risk of sudden cardiac death. In these cases, wide complex tachyarrhythmias are frequently a diagnostic challenge. The efficiency of antiarrhythmic drug therapy is limited and often the implantation of a cardiac defibrillator is required. We hereby present the case of a 68 year old male patient known with dilated cardiomyopathy, who experienced a syncopal episode as the clinical expression of a wide complex tachycardia. The recorded electrocardiogram identified ventricular tachycardia originated in the right ventricle or in the interventricular septum. The electrocardiograms recorded before and after the syncopal episode showed a major left bundle-branch block and a first degree atrioventricular block. 24-hour Holter ECG monitoring detected ventricular tachycardia originating in the left ventricle. The etiology of the dilated cardiomyopathy, arrhythmias and conduction abnormalities could not be identified. During the electrophysiological study, no sustained supraventricular or ventricular tachyarrhythmias were triggered. The pharmacological treatment has been optimized and a cardiac defibrillator was implanted. The particularity of this case consists in the presence of multiple rhythm disturbances originating both in the left and right ventricle, in a patient with idiopathic dilated cardiomyopathy and conduction disturbances at several levels.
Accounting Students’ Perceptions of Electronic Learning in Industrial Revolution 4.0

: This study focused on the continuance usage intention toward electronic learning environments using Dağhan & Akkoyunlu integrated model to understand better the determinants of students’ continuance intention to use these environments. The hypothetical model was determined using Technology Continuance Theory, Information Systems Success Model, Cognitive Model, and Information Systems Expectation Con-firmation. Empirical data from university students who had used an online learning environment infrequently were tested against the research model by using path analysis. The results indicated that the continuance variable was explained by utilitarian value, satisfaction, perceived value, and perceived usability. The satisfaction variable was explained by system quality, service quality, outcome expectations, and perceived value. The confirmation of the usage of online learning environments could be explained by information quality, system quality, and service quality variables. In line with the obtained findings and results, some suggestion for implementation was provided for the subsequent studies.