bluuebunny/crossref_metadata_2025_split huggingface dataset:
Phytochemical study and antimicrobial activity of Algerian Marrubium vulgare leaf and stem extracts
Authors: BENZIDANE Nadia , SMAHI Ridha , ZABOUCHE Boudjemaa , MAKROUF Abdelhalim , ARRAR Lekhmici 
Published: September 2020

Marrubium vulgare is used worldwide as a source of food flavor and for medicinal purposes. The aim of this study is to investigate polyphenol and flavonoid contents of M. vulgare extracts and their antimicrobial activities. Extraction was conducted using methanol and hexane. The determination of polyphenol content was realized with folin ciocalteu method and flavonoids using AlCl3. Rouph characterization of these compounds was done with HPLC method. Activity against bacteria and fungi was also studied. Results showed that methanolic extracts of leaves (LME) and stems SME) contain relatively high levels of polyphenols ad flavonoids. Except for hexane extract, all extracts from leaves and stems possess antibacterial and antifungal effects especially against Staphyloccocus aureus and Candida albicans. This finding suggests that M. vulgare methanolic extracts could serve as a basic material for the preparation of antimicrobial drugs.
Keywords: Marrubium vulgare, polyphenols, flavonoids, antibacterial, antifungal activities.
Qualitative Analysis of Phytocompounds of Liagora divaricata and Trematocarpus flabellatus
Authors: Dias Valera , Uqueio Mauro , Nhaca Amós , Salência Helena 
Published: September 2020

Introduction: Phytocompounds are a powerful chemical group obtained from natural resources that exhibit a range of biological activities. Objective: This study explored the phytocompounds constituents of two species of Rhodophyta, Liagora divaricata and Trematocarpus flabellatus in order to give a preliminary view of qualitative diversity of potentially bioactive compounds. Methods: Approximately 200g of each species were hand-picked at in Chongoene, Mozambique, during a low spring tide. Voucher specimens were identified and stored at the LMU herbarium in the Department of Biological Science, University of Eduardo Mondlane. Samples were cleaned and dried at 50°C for 72 hours before grounding using an electric mixer. Powdered samples were extracted with methanol solvent. Phytocompounds samples were analysed using the GC-MS and identified based in NIST mass spectral library. Results: A total of 42 phytocompounds were identified. The common identities from both seaweeds species include Cholesterol, Desmosterol, Heptadecane, Hexadecanoic acid methyl ester, n-Hexadecanoic acid, Neophytadiene and Phytol. Conclusion: Due to the relevance of these phytocompounds in different industries such as pharmacy, nutrition, agriculture and cosmetic, the identified seaweeds might be good candidates for further research in terms of isolating and validating their activity. Particular attention should focus on Neophytadiene due to its strong bioactive compound in several applications.
Keywords: Phytocompounds, Liagora divaricata, Trematocarpus flabellatus, Neophytadiene
Analysis of resonance modes at harmonic frequencies in high-voltage networks
Authors: L.I. Kovernikova  
Published: September 2020

Resonant modes in electric networks occur due to the presence of capacitive and inductive elements which compensate each other. Resonant circuits can occur on harmonic frequencies (further referred to as harmonics). If the networks have consumers of electric power having equipment with non-linear current-voltage characteristics that consumes a non-sinusoidal current, then the harmonics of currents and voltages in the resonant circuits sharply increase. Harmonics create energy losses in electrical equipment, which causes its additional heating, leads to a reduction in service life and, as a result, additional economic damage. Passive filters and capacitors, which are used to compensate reactive power, are especially vulnerable in such cases. Resonant nodes of electrical network and resonant harmonics can be determined by calculating the frequency responses of the input impedances or admittances of the nodes for various network configurations and loads. The experience of studying harmonic modes in electric networks allowed us to develop a methodical approach and HARMONICSsoftware for determining resonant nodes and resonant harmonics. The article provides methodical approach and some results of the research on resonant modes on the harmonics in the high-voltage networks in Eastern Siberia.
Multi-Input Boost Converter for Parallel Connected Renewable Energy Systems
Authors: R.H.M.Ali  , K.A.Khan  , M.Khalid  , A.A.Khan  
Published: September 2020

This paper proposes a multi-input boost converterfor parallel connected renewable energy systems. The proposedconverter simultaneously harnesses power from two parallelconnected renewable energy sources while maintaining constantoutput voltage. The operation of the converter is examinedand its operating modes are developed. The small-signal acmodel of the proposed converter is developed in continuousconduction mode by circuit averaging technique. Based on thedeveloped small-signal ac model, line-to-output and control-to-output transfer functions are derived and the relevant Bode plotsare obtained analytically and are verified by circuit simulation forevaluating open-loop and closed-loop stability of the converter.The analytical results are in good agreement with the computerresults, validating the developed small-signal ac model and thederived transfer functions.
Integrasi Perdagangan dan Keselarasan Siklus Bisnis di ASEAN
Authors: Hervino Aloysius Deno 
Published: September 2020

This research aims to analyze the impact of trade integration in term of demand spillover (export, import, and both) on business cycle co-movement which measured by Gross Domestic Product Real. Using data from World Integrated Trade Solution (WITS) and Fixed Effect Model (FEM), the results of this research explain that trade integration from import side among ASEAN countries has a positive impact on business cycle co-movement, but from export-side the impact is negative. Otherwise, this research didn’t found a significant impact from both export and import side to business cycle co-movement among ASEAN member countries.
Teaching Practice Patterns in ECE Teacher Program in Distance Education in Indonesia
Authors: Tatminingsih Sri 
Published: September 2020

This purpose paper describes a pattern of micro teaching in teacher education through online learning programme using the moodle application. This article was the result of a study with qualitative paradigm. Research method with survey and data collecting using structured interviews and questionnaires. The research subjects were students who took online tutorial in Strengthening Teaching Courses (STC) in The Early Childhood Teacher Education in Universitas Terbuka (UT), Indonesia in 2018. The finding of the research are online micro teaching patterns in the Online STC that have similarities with face-to-face tutorials. Teaching practices should be a cycle: planning, implementation, evaluation and reflection on their own teaching practices. In addition, to evaluate themselves, students can also be evaluated by the others students and peers by online. In online tutorial, the pattern of micro teaching developed is simpler to understand by students independently and can be an alternative practice teaching course in online teacher education program
Pola Asuh Ayah dalam Perilaku Prososial Anak Usia Dini
Authors: Khasanah Berta Laili , Fauziah Pujiyanti 
Published: September 2020

Keterlibatan pengasuhan ayah di Indonesia cukup tinggi dengan tipe pengasuhan yang berbeda-beda. Penelitian ini bertujuan untuk mengetahui seberapa besar pola asuh ayah dalam perilaku prosisial dan faktor yang mempengaruhi pola asuh ayah dalam perilaku prososial anak usia dini. Metode pada penelitian ini menggunakan pendekatan kuantitatif. Penelitian ini menggunakan teknik stratified random sampling dengan subjek 68 ayah yang memiliki anak usia 3-8 tahun. Pengumpulan data menggunakan angket dan observasi. Data dianalisis secara statistik deskriptif dengan pendekatan kuantitatif. Hasil penelitian menunjukkan pola asuh ayah dalam perilaku prososial anak yaitu rata-rata ayah selalu menggunakan pola asuh autoritatif 36% kategori kurang, kadang-kadang ayah menerapkan pola asuh otoriter 39% kategori kurang, dan kadang-kadang pola asuh permisif sebesar 58% dengan kategori cukup, sedangkan dalam perilaku prososial kadang-kadang sebesar 35% kategori kurang. Artinya tidak ada pola asuh yang paling baik diantara ketiganya. Namun orang tua harus mampu mengkombinasikan dengan pola asuh lainnya. Kurangnya pola asuh karena dipengaruhi oleh sosial ekonomi, pendidikan, gender, dan pekerjaan, sedangkan perilaku prososial dipengaruhi oleh moldeling, sifat bawaan, kebiasaan, komunikasi, dan gender.
Identifikasi Pola Asuh di Kota Pontianak
Authors: Sukamto Rinda Nikenindiana , Fauziah Pujiyanti 
Published: September 2020

Tujuan penelitian ini adalah untuk mengidentifikasi pola asuh pada anak usia 4-8 tahun di kota Pontianak. Pendekatan penelitian ini adalah pendekatan deskriptif dengan jenis penelitian deskriptif kuantitatif. Sampel yang diteliti adalah 90 responden yang memiliki anak berusa 4-8 tahun yang ada di sekitar kota Pontianak. Data penelitian tersebut dikumpulkan dengan menggunakan angket yang di sebar secara online atau biasa di sebut google form. Hasil penelitian adalah dari 90 responden yang tersebar di kota Pontianak yang menerapkan pola asuh demokratis adalah sebesar 88,80% atau sekitar 80 responden yang menggunakan pola asuh demokratis, sedangkan pola asuh otoriter ada 4,44% atau sebanyak 4 responden dan untuk pola asuh permisif ada 4,44% atau sebanyak 6 responden. Hasil tersebut di dapat dari membandingkan ke tiga jenis pola asuh tersebut mana yang lebih dominan untuk gaya pengasuhannya. Dapat di simpulkan bahwa dari 90 responden 80 orang tua menerapkan pola asuh demokratis dalam pola asuh di Kota Pontianak.
A Novel Dual-band Electromagnetic Bandgap for WLAN Applications
Authors: Phuong Huynh Nguyen Bao , Chien Dao Ngoc , Tuan Tran Minh 
Published: September 2020

A novel dual-band electromagnetic bandgap (EBG) for wireless local area network (WLAN) applications is designed in this paper. The EBG structure is based on hexagonal geometry and does not use via or multilayer. The bandgap characteristics are investigated by determining the scatter parameters. By adjusting the parameters in the dimension of the structure, the dual bandgaps can be controlled easily to achieve the WLAN frequencies. Comparisons between the proposed structure with another one, which have the same dielectric permittivity and thickness of the dielectric substrate, have been done. The structure is then also optimized to obtain the high impedance in surface at the frequencies of the WLAN bands, which are centered at 2.45 GHz and 5.5 GHz. Simulated and measured results are shown to demonstrate the performance of the proposed structure.
A 37-year-old man presented with abdominal distention and shortness of breathing
Authors: Rahman Samia , Ahmed Shamim , Chakrabortty Rajashish , Rahman Mohammed Atiqur , Ahmed Chowdhury Meshkat 
Published: September 2020

This article has no abstract. The first 100 words appear below:
A 37-year-old man hailing from Comilla, Bangladesh (about 100 km from the capital, Dhaka, Bangladesh) got admitted himself into out department on 18th February 2020 with the complaints of abdominal distention for 9 months and shortness of breathing for 7 months. The abdominal distension was sudden in onset, progressive in nature, but there was no history of jaundice, oliguria, any heart disease, or abdominal pain. About 7 months ago, the patient experienced shortness of breathing, which was sudden in onset, gradually progressive, and occurring in mild exertion. It was so severe that the patient was unable to perform his day to day activities.
EFEKTIVITAS KONSELING INFORMASI EDUKASI TERHADAP PENGETAHUAN WANITA USIA SUBUR TENTANG KANKER SERVIK DAN INSPEKSI VISUAL ASAM ASETAT SEBAGAI DETEKSI DINI
Authors: Adella Cut Adeya , Sitohang Nurkadri Asnah 
Published: September 2020

Kanker serviks merupakan kanker yang terjadi pada serviks atau leher rahim, suatu daerah pada organ reproduksi wanita yang merupakan pintu masuk ke arah rahim, letaknya antara rahim (uterus) dan liang senggama atau vagina. Penyebab utama kanker leher rahim adalah infeksi Human Papilloma Virus (HPV). Kanker serviks biasanya menyerang wanita berusia 35-55 tahun. Inspeksi Visual dengan Asam Asetat (IVA) adalah pemeriksaan leher rahim secara visual menggunakan asam cuka dengan mata telanjang untuk mendeteksi abnormalitas setelah pengolesan asam cuka 3-5%. Pengabdian kepada masyarakat ini ini bertujuan:(1)memberikan komunikasi,edukasi dan informasi (KIE) tentang kanker serviks dan manfaat IVA Test;(2) melakukan IVA Test;(3) mengukur pengetahuan WUS tentang kanker serviks dan IVA test. Dilaksanakan di Klinik bersalin Sari Medan (30 orang). Anlisis data menggunakan Wilcoxon test. Hasil kegiatan diperoleh data mayoritas berusia 37-39 tahun (43.3%), suku Jawa (40 %), agama islam (90%), menikah pertama kali usia 21-23 tahun (43.3.%), jumlah melahirkan 3 kali (30%), hasil IVA Test WUS adalah negatif /serviks normal (90%), radang/servisitis (10%). Pengetahuan WUS sebelum diberi Komunikasi Edukasi Informasi (KIE) rata –rata = 14,57; SD =3.633 dan sesudah diberi KIE rata –rata= 23.60, SD = 1.589. Hasil uji statistik diperoleh beda mean = 9.03 dan nilai P=0,001, maka dapat disimpulkan ada pengaruh yang signifikan KIE terhadap pengetahuan WUS tentang kanker serviks dan tes IVA. Disarankan kepada bidan agar mensosialisasikan manfaat tes IVA dan melaksanakannya sebagai deteksi dini kanker serviks
Leadership Theories and the Desired Competencies of the 21st Century Organization Leader
Authors: Adero Florence Adhiambo , Odiyo Wilson Osito 
Published: September 2020

The purpose of this paper was to review existing literature on leadership theories and the desired competencies of the 21st Century Organization Leader, collect and summarize empirical evidence that fits within the context of this study. The modern organization is operating in a context of complex problems that are non-predictable, dynamic and do not have definite solutions. This is coupled with the global sustainability issues of pandemics, global terrorism and environmental pollution, among others. The 21st Century leader needs to have competencies that are sustainable for the present, the future and have capabilities for survival in this digital era. The world is not static and as it evolves, so has leadership evolved and leaders require competencies that will help run the 21st century organization successfully. There are constant changes in the speed of communication, expansive networks that are needed to run organizations and the upsurge in trade volumes. All these have altered the ways that a leader can achieve organizational efficiency and effectiveness. From the literature review findings, leaders need to be intelligent, manage change, lead teams, manage performance and communicate effectively. These competencies enable them to understand and adapt relevant leadership theories that have practical value and can help them to better understand, predict and control the highly dynamic contemporary organization.
Pediatric resident medical education during COVID-19: Resident and faculty perspectives at a single institution
Authors: Romanos-Sirakis Eleny , Bouchard M 
Published: September 2020

COVID-19 altered medical education formats due to social distancing requirements. In our program, residents rated distance learning at least as effective as traditional teaching models, faculty reported high satisfaction with resident education, and both groups reported that residents were engaged during distance learning. The majority of residents and faculty recommended a hybrid model for future resident education.
Desain Prototipe Media Pembelajaran Simulasi Tata Surya pada Pelajaran Astronomi
Authors: Sujana Nana , Supeno Handoko 
Published: September 2020

Penelitian ini merupakan penelitian pengembangan media pembelajaran berbasis game simulasi. Simulasi pada dasarnya untuk mewakili benda atau sistem kerja yang sesungguhnya secara visual. Metode penelitian yang digunakan pada tahap pengumpulan data yaitu dengan melakukan studi pustaka, pembuatan objek 3 dimensi berdasarkan bentuk sistem yang sesungguhnya, kemudian dilanjutkan dengan pengintegrasian objek agar dapat dioperasikan. Peneliti mengembangkan media pembelajaran simulasi Tata Surya Pada Pembelajaran Astronomi menggunakan software Blender 3D dan dikombinasikan dengan software Unity. Blender 3D dipilih karena kemudahan dan kebutuhan sistem yang relatif kecil, sedangankan software Unity dipilih karena kemudahan Interface. Hasil dari penilitian ini adalah simulasi pergerakan dari sistem Tata Surya dalam bentuk animasi 3D. Keunggulan secara teknis, siswa dapat menggunakan aplikasi ini untuk melihat bagaimanan sistem Tata Surya berjalan, dapat mengetahui nama-nama planet dan keterangannya. Dengan memanfaatkan media pembelajaran berbasis game simulasi ini, diharapkan siswa mampu memahami tentang planet-planet dan cara kerja sistem Tata Surya dengan lebih mudah.
Éclats d’antiques. Sculptures et photographies à Constantinople il y a un siècle
Authors: Queyrel François , Paquot Gérard , Rous Isabelle Hasselin 
Published: September 2020

Les supports à l’étude archéologique : confrontation : L’archéologie est une discipline de terrain, dont trouvailles enrichissent les musées, en particulier pour la sculpture. La photographie est un outil essentiel dans ce cas pour l’archéologie, pour permettre une large diffusion des résultats. Il s’agit dans cette exposition de mettre en valeur les sculptures à partir de photographies, et de photographies anciennes, qui sont en elle-mêmes un patrimoine.
La francophonie et la diffusion de la langue française
Authors: Murano Michela 
Published: September 2020

Niveau : apprenants de niveau avancé de FLE (par exemple cinquième année de lycée en Italie).Temps de préparation pour le médiateur : environ 3 heures, pour se familiariser avec la procédure et les documents d'appui sur Internet.Durée de l'activité : environ 30 minutes en classe pour l'activité de remue-méninges et de découverte du domaine ; 3-4 heures pour la préparation par les élèves d'une synthèse écrite de documents, qu'ils exposeront oralement par la suite. Les exposés pourront avoir des durées variables.Ressources : centre de ressources multimédia avec : accès à Internet, logiciel de traitement de texte, imprimante, écouteurs, lecteur audio RealOne Player.La séquence pédagogique se compose de deux parties : dans un premier temps l'enseignant, présent dans la salle de classe, conduit les élèves à la découverte d'un nouveau sujet en s'appuyant sur leurs connaissances préalables et sur des outils en ligne (dictionnaire et encyclopédie). Dans la deuxième partie les élèves travaillent individuellement ou en petits groupes sur des documents en ligne, préalablement sélectionnés par l'enseignant.
The world in Brussels, Brussels in the world
Authors: Hermia Jean-Pierre , Vandermotten Christian 
Published: September 2020

“The world in Brussels. Brussels in the world” is the theme of the 2015 edition of the Night of Knowledge on Brussels, on Friday, 27 November at the Kaaitheater. By means of short presentations and discussions, supported by scientific data, the evening will provide the opportunity to obtain information on and to debate about the different aspects of the internationalisation of the Region: insertion within advanced service networks, the informal economy, educational segregation, juvenile delinquency, contemporary art or the role of universities in welcoming refugees.Prior to this moment of exchange and reflection, Brussels Studies is publishing in its number 94, a short note in which Jean-Pierre Hermia (Brussels Institute for Statistics and Analysis) and Christian Vandermotten (Université Libre de Bruxelles) review two key factors: the characteristics of the presence of foreigners in the region and the place and the specificity of Brussels in relation to other major European cities.
Homeless and inadequately housed people in the Brussels-Capital Region
Authors: Quittelier Benoit , Horvat Nicolas 
Published: September 2020

On 5 November 2018, Centre d’appui au secteur de l’aide aux sans-abri organised the fifth census of homeless and inadequately housed people in the Brussels-Capital Region. The results from this census supplement a study which has been ongoing for ten years. This article presents the methodology used and the main trends observed. It also proposes some elements for analysis which could shed light on the evolution of the phenomenon.
Dak- en thuislozen in het Brussels Hoofdstedelijk Gewest
Authors: Quittelier Benoit , Horvat Nicolas 
Published: September 2020

Op 5 november 2018 organiseerde het Steunpunt Thuislozenzorg Brussel een vijfde telling van dak- en thuislozen in het Brussels Hoofdstedelijk Gewest. De resultaten van die enquête vullen een studie aan die nu al tien jaar loopt. In dit artikel worden de toegepaste methodologie en de grote vastgestelde tendensen uiteengezet. Het biedt ook enkele analyse-elementen die meer inzicht kunnen geven in de ontwikkeling van het fenomeen.
« Épîtres » altaïennes : histoire et vie des textes du mouvement religieux Ak-jaŋ
Authors: Arzyutov Dmitry 
Published: September 2020

Les pratiques communicationnelles sont un aspect important des Nouveaux mouvements religieux. Cet article porte sur des « épîtres », des textes « envoyés d’en haut », et leur circulation dans le mouvement religieux moderne Ak-jaŋ dans la république d’Altaï, ainsi que leur interprétation anthropologique. Les épîtres sont une source pour comprendre la « philosophie » indigène qui est considérée par les participants au mouvement comme un savoir alternatif avec un double arrière-plan, altaïen et russe. L’article décrit la vie sociale des textes, au niveau local et au niveau régional en dialogue avec le pouvoir.
Penser un temps sans croyance ?
Authors: Dupuy Delphine 
Published: September 2020

L’hypothèse développée par Albert Piette selon laquelle la capacité à croire, invention de l’homme moderne, aurait été étrangère à l’homme de Neandertal confronte les préhistoriens à la question épineuse des croyances religieuses. Tenter d’imaginer un humain doué d’une conscience comparable à la nôtre vivre sans croire est une expérience enrichissante car elle révèle à quel point la croyance est encrée en nous, même si l’on se pense athée. La croyance est-elle dans notre esprit le propre de l’homme ? Serions-nous incapables de concevoir des humanités non-croyantes ou tout simplement différentes de la nôtre ? Ce travail nous confronte à un questionnement essentiel qui me semble déterminer la posture de tout chercheur en sciences humaines et, plus particulièrement, celle du préhistorien sensé bâtir des représentations de ce qui existait avant notre humanité.