bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISA KECENDRUNGAN MASYARAKAT TERHADAP TRANSPORTASI UDARA MENGGUNAKAN METODE AHP PADA PT.BULANG PERSADA TOUR DAN TRAVELKOTA BENGKULU
Authors: Sari Dinda Permata , Asnawati Asnawati , Zulita Leni Natalia 
Published: May 2021

ABSTRAKKomputer sangat dibutuhkan oleh banyak perusahaan swasta maupun pemerintahan, dengan berbagai macam kebutuhan. Salah satu Angkasa Pura, Salah satu jenis transportasi yang sangat dibutuhkan oleh manusia dalam pemenuhan kebutuhannya adalah transportasi udara yang ada pada angkasa pura wilayah Bengkulu sebagai system penunjuk arah Pelayanan. Sistem Aplikasi kecendrungan masyarakat terhadap transportasi udara menggunakan Metode AHP Menggunakan Visual Basic 6.0. dalam melakukan penyebaran akses informasi dan komunikasi belum secara khusus menggunakan aplikasi untuk memudahkannya. Sedangkan informasi yang disampaikan masih menggunakan dan selebaran atau kotak saran pada bandara fatmawati sehingga informasi yang ditampung tidak akurat. Sistem Aplikasi kecendrungan masyarakat terhadap transportasi udara menggunakan Metode AHP Menggunakan Visual Basic dapat menjadi masukan kepada pihak maskapai sehingga menjadi bandara bertaraf internasional.Kata Kunci : Metode AHP, Transportasi Udara, Visual Basic 6.0 ABSTRACTComputers are needed by many private and government companies, with a variety of needs. One of Angkasa Pura, one type of transportation that is needed by humans in fulfilling their needs is air transportation that exists in the temple space of the Bengkulu region as a system of directing services. The application system of the public tendency towards air transportation uses the AHP Method Using Visual Basic 6.0. in disseminating information and communication access, it has not specifically used the application to facilitate it. While the information submitted is still using the leaflet or suggestion box at Fatmawati airport so that the information collected is not accurate. The application system of the public tendency towards air transportation using the AHP Method Using Visual Basic can be an input to the airline so that it becomes an international airport.Keywords: AHP Method, Air Transportation, Visual Basic 6.0
EFFORTS TO IMPROVE BASIC MOVEMENT OF SHORT DISTANCE RUNNING USING DEMONSTRATION METHOD IN CLASS V SD NEGERI 62 KOTA BENGKULU
Authors: Sandi Reza Kurnia , Wibowo Tito Parta 
Published: May 2021

This study aims to determine the improvement in the basic motion skills of short- distance sprint through sports learning by the application of demonstration methods to fifth grade students at SD Negeri 62 Bengkulu City. The method used in this study was a class action research method. The population in this study were fifth grade students at SD Negeri 62 Bengkulu City. Number of Samples were 20 students. The instrument in this study was an observation sheet on student’s attitudes while measuring the basic motion skills of short-distance sprint , the researcher used a 30 Meter short-distance sprint practice test. Based on the results, it was found that there was an improvement in the basic motion skills of short-distance sprint of fifth grade students at SD Negeri 62 Bengkulu City through the application of demonstration methods. In the pre-cycle showed a minimum completeness percentage of 0% students who completed above the KKM average value, while in the cycle I obtained a minimum percentage of completeness of 45% students above the KKM value, and in the second cycle obtained a minimum percentage of completeness of 85% students above the KKM average. From the results of this study, it can be concluded that the application of the demonstration method can improve the basic motion skills of short-distance sprint in fifth grade students in fifth grade students at SD Negeri 62 Bengkulu City.
PEMANFAATAN MEDIA SOSIAL DALAM MENINGKATKAN PENDAPATAN USAHA
Authors: Teddy Subagya Achmad , Suhardi Dahlan , Febriani Wika , Umi Kalsum Toibah 
Published: May 2021

ABSTRAKPeran media social sangat penting dalam mewujudkan suatu kinerja yang lebih baik. Tanpa adanya media social sulit untuk mengembangkan usaha yang sedang direncanakan, dengan adanya media social sangat mudah untuk mengembangkannya. Diantara media social yang marak digunakan adalah Facebook. Sebelum menggunakan facebook, pengguna harus memiliki akun gmailter lebihdahulu. Dalam pengabdian ini akan dijelaskan tata cara pembuatan email dan facebook beserta penggunaannya. Kata Kunci :Gmail, Facebook
PENGENALAN DAN PELATIHAN PROGRAM MICROSOFT WORD DI SEKOLAH MENEGAH PERTAMA PGRI KOTA BENGKULU
Authors: Toro Faking , Salamun Salamun , Hermawansa Hermawansa 
Published: May 2021

ABSTRAKPerkembangan teknologi sekarang ini, khususnya teknologi komputer sudah sangat maju. Termasuk di indonesia sudah banyak produkproduk komputer yang dipasarkan dengan beragam jenis, harga dan spesifikasi. Industri pembuatan komponen Hardware komputerpun saling basaing dalam memuaskan para komsumen maupun pelanggannya. Untuk menyikapi hal tersebut maka kita sebagai konsumen sebaiknya berhati-hati dalam memilih dan membeli komponen hardware tersebut.Dalampenggunaannyakomputersudahdigunakandisegalabidang.Salah satunyapenggunaan Microsoft Word.Dalampengabdianini, dilakukanpelatihan program Microsoft Word KepadaSiswa SMP PGRI Kota Bengkulu.Kata Kunci:Microsoft Word, SMP NegeriPGRI Bengkulu
Matching Globular Cluster Models to Observations
Authors: Rui Nicholas Z. , Kremer Kyle , Weatherford Newlin C. , Chatterjee Sourav , Rasio Frederic A. , Rodriguez Carl L. , Ye Claire S. 
Published: May 2021

Abstract
As ancient, gravitationally bound stellar populations, globular clusters represent abundant, vibrant laboratories, characterized by high frequencies of dynamical interactions, coupled to complex stellar evolution. Using surface brightness and velocity dispersion profiles from the literature, we fit 59 Milky Way globular clusters to dynamical models from the CMC Cluster Catalog. Without performing any interpolation, and without any directed effort to fit any particular cluster, 26 globular clusters are well matched by at least one of our models. We discuss in particular the core-collapsed clusters NGC 6293, NGC 6397, NGC 6681, and NGC 6624, and the non-core-collapsed clusters NGC 288, NGC 4372, and NGC 5897. As NGC 6624 lacks well-fitting snapshots on the main CMC Cluster Catalog, we run six additional models in order to refine the fit. We calculate metrics for mass segregation, explore the production of compact object sources such as millisecond pulsars, cataclysmic variables, low-mass X-ray binaries, and stellar-mass black holes, finding reasonable agreement with observations. In addition, closely mimicking observational cuts, we extract the binary fraction from our models, finding good agreement, except in the dense core regions of core-collapsed clusters. Accompanying this paper are a number of python methods for examining the publicly accessible CMC Cluster Catalog, as well as any other models generated using CMC.
The String Theory Swampland in the Euclid, Square Kilometer Array, and Vera Rubin Observatory Era
Authors: Barrau Aurlien , Renevey Cyril , Martineau Killian 
Published: May 2021

Abstract
This article aims to draw the attention of astronomers to the ability of future cosmological surveys to put constraints on string theory. The fact that “quantum gravity” might be constrained by large-scale astrophysical observations is a remarkable fact that has recently concentrated a great amount of interest. In this work, we focus on future observatories and investigate their capability to put string theory, which is sometimes said to be “unfalsifiable,” under serious pressure. We show that the combined analysis of the Square Kilometer Array, Euclid, and the Vera Rubin observatory—together with Planck results—could substantially improve the current limits on the relevant string swampland parameter. In particular, our analysis leads to a nearly model-independent prospective upper bound on the quintessence potential,

, in strong contradiction of the so-called de Sitter conjecture. Some lines of improvements for the very long run are also drawn, together with generic prospective results, underscoring the efficiency of this approach. The conjectures used in this work are discussed pedagogically, together with the cosmological models chosen in the analysis.
New distributional records for ants and the evaluation of ant species richness and endemism patterns in Mexico
Authors: Aguilar-Méndez Mario J. , Rosas-Mejía Madai , Vásquez-Bolaños Miguel , González-Hernández Gloria Angélica , Janda Milan 
Published: May 2021

Ants (Formicidae) in Mexico have usually been undersampled despite their ecological significance and their utility as environmental service providers and bioindicators. This study estimates the species richness and the narrow endemic species number of ants across Mexico. It also documents the presence of one species newly recorded in Mexico and 19 new state-based records of 14 species from central and north Mexico. No surveys have been performed in most of the localities where we report those records, suggesting the need for a higher sampling effort across the country.
We present an ant species richness estimation and a narrow endemic ant species estimation in a grid of 0.5 degrees in Mexico. Stenamma schmitii is recorded for the first time from Mexico. Additionally, new state-based records of Azteca velox, Dorymyrmex insanus, Camponotus coruscus, Camponotus striatus, Formica propatula, Lasius latipes, Neivamyrmex melanocephalus, Neivamyrmex rugulosus, Syscia augustae, Atta texana, Cephalotes scutulatus, Crematogaster crinosa and Temnothorax andrei are recorded.
Case Report: Granulomatous Amebic Encephalitis due to Acanthamoeba spp. in an Immunocompetent Pediatric Patient
Authors: Aparicio Denisse Vaquera , Bejarano José Iván Castillo , de los Santos Abiel Mascareñas , Ramírez-Cortinas Sergio , de la O Cavazos Manuel 
Published: May 2021

Abstract.Granulomatous amebic encephalitis (GAE) caused by Acanthamoeba is a rare infection with central nervous system (CNS) involvement usually with fatal consequences. Currently, information regarding GAE in children is scarce and is limited only to case reports and case series. A 13-year-old immunocompetent male patient with a 6-month history of progressive and intermittent headaches presented to our institution. One week before hospital admission, the patient showed signs of CNS involvement. Magnetic resonance imaging revealed multiple lesions with supra- and infratentorial cerebral abscesses. An empiric treatment with combined antibiotics was given, but the patient died after 20 days of hospital stay. A postmortem diagnosis confirmed GAE. Although it is a rare disease in pediatric patients, GAE should be considered in children with a chronic history of fever, headache, and vomiting with CNS involvement.
Luminescent, sorptive and antibacterial potential of bismuth-organic framework
Authors: Iram S. , Khurshid T. , Latif S. , Imran M. , Kanwal F. , Mitu L. 
Published: May 2021

Metal organic frameworks are formed by the three-dimensional linkage of metal cores and organic linkers. In this work, bismuth-based metal organic framework (Bi-MOF) has been synthesized by using 5-hydroxyisophthalic acid (H2HIA) as linker via hydrothermal method. The said MOF was structurally characterized by UV/Vis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), 1H NMR, energy dispersive spectroscopy (EDS), thermogravimetric analysis (TGA) and X-ray diffraction technique. This MOF showed highly porous structure with surface area 1096 m2/g as determined by BET analysis. A model batch adsorption experiment was performed to evaluate the efficiency of methylene blue (MB) dye removal from aqueous media. It was found that monolayer adsorption capacity calculated from the Langmuir isotherm was 0.6240 mg/g. Bi-MOF was also screened for its antibacterial and luminescent behavior.

KEY WORDS: Bismuth, Metal-organic Frameworks, Luminescence, Sorption

Bull. Chem. Soc. Ethiop. 2021, 35(1), 119-128.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.10
Synthesis, characterization, thermal analysis and biological study of new thiophene derivative containing o-aminobenzoic acid ligand and its Mn(II), Cu(II) and Co(II) metal complexes
Authors: S. Refat M. , A. Altalhi T. , H. Al-Hazmi G. , Y. Al-Humaidi J. 
Published: May 2021

New ligand containing 2-(2,4-dioxo-4-thiophen-2-yl-butyrylamino)-benzoic acid (HL) merged moiety was synthesized and characterized by FT-IR, elemental analyses, mass spectra and 1H-NMR spectral. In the present study, the attempts were carried to form complexes of HL ligand with some transition metal ions (MnII, CuII and CoII) of well-defined at the (1:1) ratio of the components in the dimethyl sulfoxide (DMSO) solvent. All complexes have been studied by FTIR spectra, elemental analyses, thermal analysis, molar conductivity, electronic spectra and magnetic moment. The HL ligand produced as a bidentate chelate with interactive metal ions. All the results suggested octahedral geometry to complexes and have the formulae [M(HL)(Cl)2(H2O)2].nH2O where M = Mn(II), Cu(II) and Co(II). The IR spectra of the complexes were assigned and compared with the data in literature. The kinetic and thermodynamic results such as E*, ΔH*, ΔS* and ΔG* were calculated based o the TGA/DTG curves using Coats and Redfern and Horowitz and Metzger approximation methods. Furthermore, the resultant complexes were evaluated for the anti-bacterial and anti-fungal potential.

KEY WORDS: 2-(2,4-Dioxo-4-thiophen-2-yl-butyrylamino)-benzoic acid, Transition metal complexes, FTIR, TGA, Antimicrobial test

Bull. Chem. Soc. Ethiop. 2021, 35(1), 129-140.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.11
Green synthesis of silver nanoclusters via Melia azedarach plant and their potential towards catalytic reduction of 4-nitrophenol
Authors: Ahmad F. , Nawaz F. , Khan M. , Munib W. , W, Hassan S. , Shah M. 
Published: May 2021

Biomolecules present in the plant extracts have potential to reduce metal ions to nanoclusters by a single-step green synthesis approach. In the current study, we have synthesized the silver nanoclusters (AgNCs) from a medicinal plant, Melia azedarach and studied their catalytic activity toward the reduction of 4-nitophenol to 4-aminophenol and organic dyes. Morover, the phytochemical analysis of the plant extract was carried out in order to determine the bioactive compounds present in it. Metallic nature of the synthesized AgNCs was verified by X-ray diffraction study, while their morphology and size of was confirmed by transmission electron microscopy and Zetasizer, respectively. The study revealed that they were 56±2 nm in size and formed clusters. Fourier transformed infrared spectroscopy gives information about the different functional groups present in synthesized these NCs. Furthermore, the important catalytic applications, such as catalytic reduction of 4-nitrophenol in the presence of mild reducing agent NaBH4 and the catalytic degradation of organic dyes was monitored by FTIR. Therefore, these results indicate that the obtained nanomaterials have important applications in industrial areas.

KEY WORDS: Green synthesis, Silver nanoclusters, Catalytic reduction, Characterization

Bull. Chem. Soc. Ethiop. 2021, 35(1), 197-206.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.17
Development and validation of a single HPLC method for the determination of thirteen pharmaceuticals in bulk and tablet dosage form
Authors: Tegegne B. , S. Chandravanshi B. , Zewge F. , Pillay L. , Chimuka L. 
Published: May 2021

The aim of this study was to develop and validate a high performance liquid chromatography (HPLC) method for the determination of thirteen selected pharmaceutical compounds (metformin, amoxicillin, chloroquine, theophylline, trimethoprim, caffeine, norfloxacin, ciprofloxacin, acetylsalicylic acid, doxycycline hyclate, metronidazole, albendazole and cloxacillin) in bulk and tablet dosage form. Chromatographic separation using a Kromasil C18 column, gradient elution with aqueous formic acid (0.1%), methanol and acetonitrile, a UV absorption wavelength of 250 nm and a mobile phase flow rate of 1 mL/min over a 22 min run time was optimized for complete separation of the selected target compounds. The method was validated and results for: linearity, precision, sensitivity, accuracy, speciﬁcity, suitability and method robustness were obtained and met the ICH guidelines. Calibration curve correlation coefficients ranged from 0.9985-0.9998 and the percentage relative standard deviations for repeated analysis was below 5%, indicating acceptable method precision. The limits of detection (LODs) and quantification (LOQs) ranged from 0.020-0.27 µg/L and 0.080-0.91 µg/L, respectively. The accuracy study yielded recoveries in the ranges 86.0-102% for pure compounds and 90.9-106% for compounds in tablet dosage form. The method is robust for small or deliberate changes to the chromatographic parameters and found to be appropriate for analysis of tablets for the determination of the thirteen pharmaceuticals.

KEY WORDS: Pharmaceuticals, Bulk determination, Tablet dosage, High performance liquid chromatography, Method development, ICH guidelines

Bull. Chem. Soc. Ethiop. 2021, 35(1), 17-31.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.2
Mn(II), Co(II), Ni(II), and Cu(II) complexes of amino acid derived Schiff base ligand: Synthesis, characterization and in-vitro antibacterial investigations
Authors: O. Rajee A. , F. Babamale H. , Lawal A. , A. Aliyu A. , A. Osunniran W. , O. Sheriff A. , Lawal M. , A. Obaleye J. 
Published: May 2021

Four complexes of Mn(II), Co(II), Ni(II) and Cu(II) with Schiff base ligand (H3L) derived from 2-amino-3-methylbutanoic acid and acetylacetonate were synthesized. All complexes were characterized by elemental analysis, Fourier-transform infrared spectroscopy and electronic spectroscopy. The results confirmed the coordination of the ligand to metals in tridentate fashion via the hydroxyl oxygen, the azomethine nitrogen and the enolic acetylacetonate oxygen. Antimicrobial activities were established for all complexes, free ligand and ciprofloxacin for comparison. Both the ligand and its metal complexes were active against Gram-positive and negative bacterial strains. The Cu(II) complex, showed highest antibacterial activity among the complexes screened. Other complexes displayed considerable antibacterial activity. Octahedral geometry was proposed for the metal(II) complexes with the Schiff base.

KEY WORDS: Schiff base, Amino acid, Metal Complexes, Antibacterial agents

Bull. Chem. Soc. Ethiop. 2021, 35(1), 97-106.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.8
Synthesis, characterization, and photocatalytic efficiency of a new smart PdO oxide nanomaterials for using in the recycling and sustainable wastewater treatment
Authors: S. Refat M. , A. Saad H. , A. Gobouri A. , Alsawat M. , Belgacem K. , M. Majrashi B. , M. A. Adam A. 
Published: May 2021

Nanostructured PdO materials with promising catalytic properties were successfully synthesized by the controlled thermal decomposition in air of three Pd(II) complexes containing Pd(II) ion, ofloxacin drug and amino acid. The Pd(II) complexes which were used as precursors were [Pd(OFL)(Gly)]Cl, [Pd(OFL)(Ala)]Cl, and [Pd(OFL)2]Cl2, where Gly is glycine amino acid, Ala is alanine amino acid, and OFL is ofloxacin. Structural and morphological properties of the synthesized PdO materials were obtained using FTIR, XRD, SEM, and EDX techniques. The XRD results confirm the tetragonal structure of PdO. The obtained PdO materials were tested as a catalyst for the heterogeneous degradation of H2O2 solution. The results revealed that PdO could effectively degrade H2O2.

KEY WORDS: PdO, Nanoparticles, Photocatalytic efficiency, Wastewater treatment

Bull. Chem. Soc. Ethiop. 2021, 35(1), 107-118.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.9
Soil Chemical Properties and Yield Response of Okra (Abelmoschus Esculentus L) to Different Organic Fertilizer Sources
Authors: Unagwu Benedict. O. , Ayogu Roseline. U. , Osadebe Vivian.O. 
Published: May 2021

The study investigated the effects of animal manures (cow manure, CoM; chicken droppings, CkD; and pig manure, PiM) applied at 15 t ha-1 equivalent rate on the soil and growth performance of okra grown in a degraded ultisol. The treatments (CoM; CoM; PiM and Control unamended) were laid out in a completely randomized design and replicated three times. Animal manure application had significant effects on soil properties. Soilorganic matter increased by over 9% in the amended treatment relative to the control treatment. Except for N, increases in P (circa 14-70%)and K (circa 15-46%) nutrients were higher for CkD treatment than in other treatments. Generally, the amended treatments maintained a significantly higher (p ≤0.05) plant leave number, stem girth, plant height, okra pod length and yields when compared with the Control treatment. The results indicated that application of animal manure enhanced okra growth performance. The findings suggest that animal manure application can potentially increase okra yield when grown in a degraded soil. It is recommended that farmers use ample (15 t ha-1) ) quantity of animal manures to increase their crop yields, which invariably will enhance their income.
Keywords: Soil fertility, organic fertilizers okra growth, okra yield response, farmers okra yeild.
Autopercepção de saúde associado a qualidade de vida em idosas praticantes de atividade física
Authors: Nazar Fabiano , Gomes Fabio Ricardo Hilgenberg , Fonseca-Silva Cinthia Fernanda da , Arruda Mariana Lacerda , Oliveira Valdomiro de , Vagetti Gislaine Cristina 
Published: May 2021

Introdução: A expectativa de vida da população brasileira tem crescido consideravelmente, assim é importante compreender o modo como a pessoa idosa tem percebido suas condições de saúde, para uma melhor qualidade de vida (QV). Objetivo: verificar a associação da autopercepção de saúde com a QV de idosas que praticam atividade física (AF) e analisar a correlação entre o tempo despendido em AF e a percepção de saúde. Método: Quantitativo, transversal e correlacional. Instrumentos: International Physical Activity Questionnaire (IPAQ), World Health Organization Quality of Life – BREF e OLD, Sociodemográfico com a pergunta “De um modo geral, você se considera uma pessoa saudável?” e o cálculo do Índice de Massa Corporal (IMC). Foi realizado a análise descritiva das variáveis, teste de coeficiente de correlação ponto-bisserial e realização da regressão linear múltipla com significância de p<0,05. Resultados: houve uma boa percepção da QV e a percepção de saúde foi positiva na maioria da amostra. O IMC denunciou sobrepeso das participantes. Verificou-se a existência de correlação inversa no domínio Físico da QV geral, nas idosas com percepção negativa de saúde, sendo considerada uma correlação moderada (r=-0,436; p=0,00). Conclusão: Não houve significância estatística para associar a percepção de saúde com a QV, apesar da percepção de saúde delas ser positiva e o tempo de prática de AF semanal estar acima do recomendado pela OMS. Houve uma boa percepção da QV geral pelo grupo, porém, a correlação entre a prática de AF e do domínio Físico das idosas com percepção negativa de saúde foi inversa.