bluuebunny/crossref_metadata_2025_split huggingface dataset:
Phytochemical analysis, antibacterial activity of hydromethanol extracts from stems of Ximenia americana, Côte d’Ivoire species on methicillin-resistant Staphylococcus aureus
Authors: Affi Kakou Baudelaire , Benie Anoubile , N’Guessan Alain Hugues , Fernique Konan K. , Guessennd N.K. , Bekro Yves-Alain 
Published: March 2021

The emergence of bacteria resistant to several families of antibiotics is nowadays a public health problem in the world. To overcome this, it appeared necessary to explore sources of active molecules from natural substances. Thus, the objective of this study was to carry out the phytochemical sorting of hydromethanol extracts from Ximenia americana stems and to evaluate their antibacterial activities on the in-vitro growth of methicillin-resistant Staphylococcus aureus. The phytochemical screening performed allowed us to identify saponins, sterols and polyterpenes, polyphenols, tannins and flavonoids. HPLC-MS/MS analysis lead to the identification of a variety of flavan-3ol, quercetin and derivatives. The study of antibacterial activity carried out on 5 multi-resistant clinical strains and on a reference strain by the Muller-Hinton agar medium diffusion and dilution method showed that the extracts were active on all the strains with MICs ranging from 6.25 to 100 mg and MBCs ranging from 12.5 to 100 mg. The antibacterial potential of these extracts highlighted in this study could make this plant a candidate for in-depth investigations that could lead to the discovery of new antibacterial molecules.
L’apparition de bactéries résistantes à plusieurs familles d’antibiotiques constitue, de nos jours, un problème de santé publique dans le monde. Pour y remédier, l’exploration de sources de molécules actives à partir des substances naturelles s’est avérée nécessaire. Ainsi, l’objectif de cette étude était de réaliser le tri phytochimique des extraits hydrométhanoliques de tiges de Ximenia americana et d’évaluer leurs activités antibactériennes sur la croissance in-vitro des Staphylococcus aureus résistant à la méticilline. Le screening phytochimique réalisé a permis d’identifier des saponines, des stérols et polyterpènes, des polyphénols, des tanins et des flavonoïdes. L’analyse à la HPLC-MS/MS a permis d’identifier une variété de flavan-3ol, de la quercétine et dérivées. L’étude de l’activité antibactérienne réalisée sur 5 souches cliniques multirésistantes et sur une souche de référence par la méthode de diffusion et de dilution en milieu gélosé Muller-Hinton a montré que les extraits étaient actifs sur toutes les souches avec des CMI variant de 6,25 à 100 mg et des CMB variant de 12,5 à 100 mg. Le potentiel antibactérien de ces extraits mis en évidence dans cette étude pourrait faire de cette plante une candidate à des investigations approfondies pouvant aboutir à la découverte de nouvelles molécules antibactériennes.
Influence of polyethylene from waste pure water sachet on properties of hot mix asphalt
Authors: Murana A.A. , Abdulkarim A.A. , Olowosulu A.T. 
Published: March 2021

This work evaluate the influence of waste pure water sachet (WPS) as a modifier in Hot Mix Asphalt (HMA). The properties of the constituent materials were determined. Modified HMA samples were prepared at varying concentration of 2, 4, 6, 8 and 10% WPS content by weight of the Optimum Binder Content (OBC). The properties of the modified HMA were determined using Marshall Method of mix design. The properties of the constituent materials showed that they are suitable for HMA production. The modified bitumen showed an increase in softening point (61 – 73.5%), flash point (258 – 2820C), fire point (289 – 3110C) and ductility (92.67 –118.67cm) as the WPS content increases from 2% to 10% while decrease in penetration (62.33 – 56.5mm) as WPS content increases from 2% to 6%. Stability and Bulk density increases from 4.64kN to 8.84kN and 2.21g/cm3 to 2.34g/cm3 respectively while flow, voids in mineral aggregates (VMA) and Air voids decreases from 3.6 to 2.98mm, 23.85 to 20.16% and 19.73 to 13.97% respectively as the WPS content was increased from 2 to 8%. An optimum polyethylene from WPS modifier content of 8% by weight of the OBC is recommended for use in the HMA.
Keywords: Bitumen, Hot Mix Asphalt, Pure Water Sachet, modified bitumen, Marshall Properties, Polyethylene.
Modelling of clinker cooler and evaluation of its performance in clinker cooling process for cement plants
Authors: Oyepata J.S. , Akintunde M.A. , Dahunsi O.A. , Yaru S.S. , Idowu E.T. 
Published: March 2021

Cement manufacturing requires cooling down of hot clinker at temperature of about 1350o C to temperature lower than 100 o C in a cooling system known as clinker cooler. Many plants are unable to cool the clinker below 250o C. This challenge led to scaling down of actual clinker cooler to a test rig size in the ratio 25:1 suitable for simulation. Computational Fluid Dynamics (CFD) tools (Solid-Works and ANSYS) were used to achieve the simulation. The clinker outlet temperatures obtained from simulations were validated with theoretical evaluation. Results showed that with clinker and cooling air flow rates of 0.2 kg/s and 0.54 kg/s respectively and with a clinker bed height of 0.6 m. An optimum cooler performance was achieved with clinker outlet temperature of 68 oC. The scaled down cooler was 15% higher than the existing cooler in terms of recoverable energy and 10% high in terms of energy efficiency.
Keywords: Clinker Cooler, Computational Fluid Dynamics (CFD), Mass flow rate clinker and Mass flow air and Clinker Furnace.
Techno-economic analysis of the influence of different operating conditions on gas turbine centrifugal compressor set performance
Authors: Agbadede R. , Kainga B. 
Published: March 2021

In today’s world where fuel prices have increased drastically and there are great concerns about environmental issues, there is the need to properly match centrifugal compressors to their Gas Turbine (GT) drivers, so as to achieve an efficient overall package, lower turbine fuel consumption, longer time between overhauls, and most importantly, package operational flexibility in meeting alternate process conditions. This study highlights the influence of operating and environmental conditions on the overall performance of the gas turbine compressor set. GasTurb and CMap simulation softwares were employed to model and simulate the performances of the GT and centrifugal compressors respectively. The outcome of the performance plots show that at a design inlet flow volume of 15928 cubic meters per hour, the compressor required power from the gas turbine drive to transport RaNatGas is approximately 7450kW as against 7065kW and 6500kW for MaNatGas and LaNatGas mixtures respectively. Techno-economic analysis of the gas turbine compressor set shows that the fuel cost of transporting a given volume flow of RaNatGas to a specific location for a year gives about$13.5million when compared with MaNatGas and LaNatGas mixtures which cost about $13.02million and 12.3million respectively.
Keywords: Natural Gas, Performance Simulations, Polytropic Efficiency, Polytropic Head, Gas Compositions
Optimization of RBF-SVM hyperparameters using genetic algorithm for face recognit
Authors: Ibrahim Y. , Okafor E. , Yahaya B. 
Published: March 2021

Manual grid-search tuning of machine learning hyperparameters is very time-consuming. Hence, to curb this problem, we propose the use of a genetic algorithm (GA) for the selection of optimal radial-basis-function based support vector machine (RBF-SVM) hyperparameters; regularization parameter C and cost-factor γ. The resulting optimal parameters were used during the training of face recognition models. To train the models, we independently extracted features from the ORL face image dataset using local binary patterns (handcrafted) and deep learning architectures (pretrained variants of VGGNet). The resulting features were passed as input to either linear-SVM or optimized RBF-SVM. The results show that the models from optimized RBFSVM combined with deep learning or hand-crafted features yielded performances that surpass models obtained from Linear-SVM combined with the aforementioned features in most of the data splits. The study demonstrated that it is profitable to optimize the hyperparameters of an SVM to obtain the best classification performance.
Keywords: Face Recognition, Feature Extraction, Local Binary Patterns, Transfer Learning, Genetic Algorithm and Support Vector Machines.
Statistical tuning of cost 231 Hata model in deployed 1800mhz GSM networks for a rural environment
Authors: Omoze E.L. , Edeko F.O. 
Published: March 2021

Radio propagation planning requires the use of propagation models in planning cell size as well as frequency assignment. This paper presents a comparative study of path loss predicted using COST 231 Hata model and ECC-33 model on received signal strength data collected from three deployed GSM networks at 1800MHz in Nigerian Institute for Oil Palm Research environment (NIFOR), Edo State, Nigeria. Based on the Mean Prediction Error (MPE) and Root Mean Square Error (RMSE) values obtained from the comparison, the COST 231 Hata model was tuned using the least square approach. The result obtained after tuning shows that for Network A; MPE andRMSE values reduces to 1.17 dB and 5.5dB. For Network B, MPE and RMSE values reduces to 2.26 dB and 7.16dB. While, for Network C; MPE and RMSE values reduces to 6.21 dB and 10.78dB. The results obtained show that the tuned COST 231 Hata model can be used for radio planning in the study environment as well as other environment with similar terrain profile.
Keywords: Propagation model, Path loss, COST 231 Hata model, ECC-33 model, Least square tuning approach, MPE and RMSE
An efficacy of Zobe dam for hydroelectricity generation in Katsina State, Nigeria
Authors: Nuhu I. , Abdulsalam H. 
Published: March 2021

The quest for other alternative and sustainable energy prompted the feasibility assessment of Zobe dam meant for irrigation to produce electricity; In this write-up the scheme is designed to operate with two turbines; turbine T1 to operate all year round to take account of the irrigation need downstream, The second turbine T2 will operate on a spill discharge, and to be available for four months with a generation capacity of 0.969 MW. T1 is expected to discharge 55,500,000m3 within six months to cater for irrigation need with an average discharge rate of 3.6m3 /s. it was found that, the dam has the potential to generate a minimum 0.671MW all year round and a maximum of 1.5MW of power during Peak discharge period. The scheme was designed with minimum modification of the existing infrastructure at site which translate to minimum cost implication in construction, system operation and maintenance.
Keywords: Economic transformation, Energy, hydropower, Irrigation farming, Zobe dam,
Determination of optimal parboiling conditions for nigerian FARO-44 rice variety
Authors: Muochebe A.B. , Nwajinka O.C. , Nwatu I.E. 
Published: March 2021

Optimization study was carried out on the parboiling process variables for improving the milling quality of FARO-44 rice variety using Response Surface Methodology (RSM) in Central Composite Design (CCD). The variables studied were initial soaking temperature (IST), soaking time (SKt) and steaming time (STt) including their interactive effects.The range of the input variables studied were 70-90oC, 8-12hrs and 40-50minsfor initial soaking temperature, soaking time and steaming time respectively. For thisstudy, a total of twenty (20) randomized experimental runs comprising one (1) replicate of factorial point, one (1) replicate of axial point (alpha 2.7) and six (6) centre point in the design space. Analyses of variance (ANOVA) were performed on the experimental data sets and models were fitted for all the response variables generated. The result showed that the optimal parboiling variables were, 90 0C, 46mins and 10 hours,for initial soaking temperature, steaming time and soaking time respectively with their corresponding optimum response 58.7%, 6.7% and 58.1% for Head rice yield (based on parboiled paddy weight), breakage ratio and milled rice colour (based on illumination). The composite desirability is 0.793 which maximized the percentage Head rice yield (HRY) and milled rice colour (MRC) but minimized the percentage Breakage Ratio (BR).
Keywords: optimization, Response Surface Methodology, FARO-44, Rice,Head rice, parboiling
Modeling water demand in a growing public university in Nigeria
Authors: Sobowale A. , Adeyemo K.S. 
Published: March 2021

Nigerian university campuses are facing the twin problems of providing portable water of adequate quantity and quality and the sustainability of such supply. This paper examines the water demand status of a public University in Nigeria. Domestic, Public and Industrial water uses were considered while population forecasting was done using regression analysis for a 30 years design period (2018 – 2048). Results reveals possible population increase of 53.8 % by 2048 when the institution will clock 60 years. Water demand is also expected to rise sharply from 5,206 m3 day -1 (2018) to 10,959 m3 day -1 (2048); existing storage capacity cannot satisfy the current needs not to talk of the projected demand hence, a reservoir of about 11,000 m3 will be needed to service the university for the next 30 years; attracting more investments into the water supply system becomes imperative as the existing supplies from groundwater is unsustainable.
Keywords: Water Demand; Population; University; Sustainability; Growth
Teks, Konteks dan Hermeneutika Imamat 18:22 dan 20:13
Authors: Hauw Andreas 
Published: March 2021

Abstrak: Artikel ini mengaformasi larangan homoseks dalam Imamat 18:22 dan 20:13 lewat analisis teks dan konteks. Atas dasar teks dan konteks ini pula, artikel berdiskusi dengan pertanyaan-pertanyaan kaum revisionis yang menafsirkan kedua teks Imamat secara berbeda dan tidak relevan. Dalam kategori ritual, tradisi dan keadilan artikel ini menjawab keberatan-keberatan yang muncul. Abstract: The article affirms the prohibition of same-sex relationships through the analysis of the text and contexts of Leviticus 18:22 and 20:13. Differing views and interpretations by revisionists and the dismissal of their inappropriate analysis and categorization of ritual, tradition, and justice are also addressed in the article.
Innovative Technologies Against the COVID-19’s Challenge: Education Issues
Authors: Brauweiler Hans-Christian , Yerimpasheva Aida 
Published: March 2021

The intention of the paper is to consider the role of technologies used to overcome the COVID-19’s challenges in higher education. On investigating, it has been found that the digital strategies utilizing innovation technologies help students to adapt to pandemic consequences. This study enlightens the various technologies that assist systems of healthcare and education in diverse aspects to outlive against COVID-19. Furthermore, the technological shift of world economy that happened during the pandemic and its influence in the society is discussed. Besides the considered innovation technologies, this paper also deals with changes that have taken place in education system of Kazakhstan in pandemic circumstances. Alongside our suggested solution for further educational process issues is also presented.
A detailed review of the literature is done on COVID-19, digital technologies in education, blended learning using appropriate keywords on SCOPUS, Springer, Science Direct, and Google Scholar. To get insights some relevant sites and blogs are also taken into account. We have identified technologies used in Kazakhstan that play an important role now.
There have been chosen exploratory and conclusive research design. Fifty-nine students provided qualitative responses; ninety-eight students and graduates participated in quantitative survey. The results of study has shown students’ increased awareness concerning blended learning.
The scientific novelty lies in the description of the experience gained by higher schools during the quarantine. We believe that in the future, blended learning should be used largely. The innovations in the learning process cover two areas. The first is related to software used. It is like creation of a virtual university that facilitates communication between students and teachers. The second area correlates with content, without which any innovation will fail.
CORPOS QUE DANÇAM
Authors: Cardoso Allana Alexandre , Silva Jaqueline da , Silva Rui Manoel Coelho Resende da 
Published: March 2021

O dançar a dois proporciona uma comunicação mais íntima e direta entre os pares, estimulando as relações corporais e consequentemente, a corporeidade daqueles que a praticam. Instigados a compreender como se processa a articulação entre corpo e corporeidade na dança, bem como sua influência nas relações corporais no dançar a dois, realizou-se uma revisão narrativa da literatura, de caráter descritivo, com uma síntese qualitativa dos trabalhos analisados. Os dados evidenciados permitem a reflexão acerca de um corpo que, influenciado e moldado pelo tempo, pela cultura e pela sociedade, possui uma íntima relação com a dança, construindo sua corporeidade por meio das partidas e oportunidades no dançar a dois.
MOVIMENTO HIP HOP E DANÇAS URBANAS
Authors: Antunes Dariadison , Lopes da Silva Cinthia 
Published: March 2021

O movimento hip hop e as danças urbanas se apresentam atualmente como manifestações artísticas fortemente presentes no panorama cultural brasileiro, sendo vivenciadas, utilizadas e estudadas sob diferentes perspectivas. Por meio de uma pesquisa bibliográfica, o presente estudo teve como objetivo fazer uma revisão do hip hop e das danças urbanas a partir de seus contextos históricos, culturais e como manifestação no campo do lazer, e analisar o hip hop e as danças urbanas a partir da produção acadêmica no período de 2005 a 2019. Os resultados demonstraram que o hip hop e as danças urbanas possuem inúmeras funções de grande relevância para a sociedade. Identificou-se que tais manifestações contribuem com a participação social, cidadania e construção identitária. Observou-se que tais práticas como atividade de lazer proporcionam aos seus adeptos prazer, alívio das tensões e satisfação, além de servirem como um importante veículo de educação em espaços formais e não formais.
Evaluation of Fairness of Trademarks Royalty Prices in Transfer Pricing Transactions (Case Study of PT X Court Decisions)
Authors: Intan Puspanita  , Septriadi Danny 
Published: March 2021

ABSTRACT
This study aims to analyze the arm’s length price of transfer pricing transactions for parties conducting cross-border transactions as well as to see the basis and considerations of the panel of judges regarding royalty on trademark license for tax court decision disputes. The method used in this research is a qualitative approach by looking at the sources of books, documents, national and international journals, as well as laws related to the research topic of transfer pricing. The results of this study concluded that the beneficial owner of IP was Friesland Brands BV, therefore the economic ownership of the IP was Friesland Brands BV because it had developed and continued to develop royalties on the trademark of data, methods, processes, capabilities, and expertise in connection with the milk-making activity. The Panel of Judges did not use the various meanings of a trademark to prove the existence of the trademark. The definition of a trademark that can be used by judges to prove the existence of a trademark is based on international and domestic provisions.
Keywords: arm’s length price, tax dispute, trademarks

ABSTRAK
Penelitian ini bertujuan untuk menganalisis harga wajar atas transaksi transfer pricing bagi pihak-pihak yang melakukan transaksi lintas negara serta melihat dasar dan pertimbangan majelis hakim terkait royalty on trademark lisence atas sengketa putusan pengadilan pajak. Metode yang digunakan dalam penelitian ini yaitu menggunakan pendekatan kualitatif dengan melihat berbagai sumber antara lain yaitu buku-buku, dokumen, jurnal nasional dan internasional, serta undang-undang yang terkait dengan topik transfer pricing. Hasil penelitian ini memperoleh kesimpulan bahwa beneficial owner atas IP adalah Friesland Brands BV, oleh karena itu economic ownership atas IP tersebut adalah Friesland Brands BV karena telah mengembangkan dan melanjutkan untuk mengembangkan royalty on trademark tersebut atas data, metode, proses, kemampuan dan keahlian sehubungan dengan aktivitas pembuatan susu tersebut. Majelis Hakim tidak menggunakan berbagai pengertian merek dagang untuk melakukan pembuktian keberadaan merek dagang tersebut. Pengertian merek dagang yang dapat digunakan hakim untuk membuktikan keberadaan trademark (merek dagang) tersebut berdasarkan ketentuan internasional dan domestik.
Kata Kunci: harga wajar, sengketa pajak, trademarks
USAHATANI BUDIDAYA JAGUNG HIBRIDA VARIETAS BIMA 19-URI DI LAHAN SAWAH TADAH HUJAN KABUPATEN OGAN KOMERING ILIR SUMATERA SELATAN
Authors: Sari Maya Dhania , Suparwoto S 
Published: March 2021

Provinsi Sumatera Selatan memiliki potensi dalam pengembangan usahatani jagung, namun petani di Kecamatan Lempuing, Kabupaten Ogan Komering Ilir belum memanfaatkan lahan sawah tadah hujan untuk ditanami jagung setelah penanamn padi. Adapun tujuan penelitian ini untuk mengetahui kelayakan usahatani jagung hibrida BIMA 19-URI di lahan sawah tadah hujan dalam upaya meningkatkan pendapatan petani. Kegiatan ini dilaksanakan di lahan sawah tadah hujan Kelompok Sampurna Tani Desa Cahya Maju Kecamatan Lempuing Kabupaten Ogan Komering Ilir dengan luasan 1,5 ha pada MK 2017, dan melibatkan 6 petani kooperator. Varietas jagung yang digunakan yaitu Bima 19-URI. Hasil pengkajian menunjukkan bahwa usahatani jagung hibrida varietas Bima 19-URI di lahan sawah tadah hujan secara finansial layak diusahakan dengan nilai R/C 1,9. Namun hasil B/C < 1, yaitu sebesar 0,9 yang berarti manfaat ekonomi usahatani jagung hibrida masih relatif rendah. Untuk itu diperlukan upaya yang lebih efektif untuk mencapai produktivitas yang optimal.
Clavicula Morfometrisi
Authors: GÜÇLÜ EKİNCİ Hilal Kübra , GÜLER Hatice , AL Özge , ATEŞ Şükrü , UÇAR Sümeyye , SAĞIROĞLU Eda 
Published: March 2021

AMAÇ: Clavicula üst extremiteyi gövdeye bağlayan kavşak kemiklerinin önde bulunanı olup sternum ve scapula arasında uzanır. Bu çalışma omuz ekleminde ortaya çıkan hareketlerde kılavuz rolü oynayan clavicula’nın morfometrik boyutlarını belirlemek amacıyla yapılmıştır.
GEREÇ VE YÖNTEM: Bu çalışmada cinsiyeti belli olmayan Erciyes Üniversitesi Tıp Fakültesi Anatomi Anabilim Dalı’na ait kemik laboratuvarında yer alan 36 adet clavicula (sağ 17, sol 19) üzerinde gerçekleştirilmiştir. Digital kumpas kullanılarak clavicula’nın; uzunluğu, extremitas acromialis’in kalınlığı, impressio costoclavicularis uzunluğu ve genişliği, fascies sternalis’in uzunluğu ve genişliği, fascies acromialis’in uzunluğu ve genişliği, clavicula’nın orta noktasının çevresi ölçülüp mm cinsinden ve clavicula’nın ağırlığı hassas terazi ile gram cinsinden ortaya konuldu.
BULGULAR: Clavicula’nın; ortalama uzunluğu 138.30±12.49 mm; extremitas acromialis’in superior inferior kalınlığı 10.70±1.97 mm; extremitas acromialis’in anterior posterior kalınlığı 23.93±2.90 mm; impressio costoclavicularis uzunluğu 22.00±5.45 mm; impressio costoclavicularis genişliği 7.61±1.87 mm; fascies sternalis’in uzunluğu 17.85±2.78 mm; fascies sternalis’in genişliği 21.71±2.96 mm; fascies acromialis’in uzunluğu 9.9±1.93 mm; fascies acromialis’in genişliği 19.61±2.73 mm; clavicula’nın orta noktasının çevresi 34.72±4.03 mm ölçülmüş ve ayrıca kuru clavicula ağırlığı 15.28±4.2 gram olarak ölçülmüştür.
SONUÇ: Clavicula’nın anatomik yapısı ve morfometrik ölçümlerinin belirlenmesi, clavicula kırıklarında, ve clavicula ile ilgili pek çok patolojilerde klinik açıdan önemli ve gereklidir.