bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Pengetahuan Keuangan, Lokus Pengendalian Dan Pendapatan Terhadap Perilaku Keuangan
Authors: Alexander Robin , Pamungkas Ary Satria
Published: February 2022

The purpose of this research is to analyze the influence of Financial Knowledge, Locus of Control, and Income on Financial Behavior. The population of this research are lecturers teaching at the University located in West Jakarta who are active in teaching as well as who are continuing their further education. Sample was selected using convenience sampling method amounted to 169 respondents. Data processing techniques using structural equation modeling what helped by SmartPLS.3.2.7 program. The result of this study reveals that Financial Knowledge and Locus of Control do affect significantly on Financial Behavior, while Income does not affect significantly on Financial Behavior.Tujuan penelitian ini adalah untuk menganalisis pengaruh Financial Knowledge, Locus of Control, dan Income terhadap Financial Behavior. Populasi penelitian ini adalah dosen yang mengajar di Universitas yang berlokasi di Jakarta Barat baik yang aktif mengajar maupun yang sedang melanjutkan studi pendidikan lanjutan. Sampel dipilih menggunakan metode convenience sampling sebanyak 169 responden. Teknik pengolahan data menggunakan structural equation modeling yang dibantu oleh program SmartPLS.3.2.7. Hasil penelitian ini menunjukkan bahwa Financial Knowledge dan Locus of Control berpengaruh secara signifikan terhadap Financial Behavior, sedangkan Income tidak berpengaruh secara signifikan terhadap Financial Behavior.
Pengaruh Motivasi Dan Kepuasan Kerja Terhadap Opini Kinerja Karyawan Matahari Ciputra Mall
Authors: Kenny Kenny , Kurniati Kurniati
Published: February 2022

Motivation is considered important for companies because employees who are emotionally involved can benefit the company both in the work productivity of the employees. Good employee productivity can be realized from the job satisfaction of the employees in the company. . In determining this sample using convenience sampling by getting 67 respondents in the company. This research method uses multiple regression analysis. Hypothesis testing carried out in this research is to find out whether there is an influence between motivation on the performance of Matahari Department Store employees, atMall Ciputra. And there is an influence between job satisfaction on the performance of Matahari Department Store employees, at Mall CiputraMotivasi dianggap penting bagi perusahaan dikarenakan karyawan yang terlibat secara emosional dapat memberikan keuntungan bagi perusahaan baik secara produktivitas kerja para karyawan. Produktivitas karyawan yang baik dapat terwujud dari kepuasan kerja para karyawan di dalam perusahaan tersebut. Dalam penentuan sampel ini menggunakan convenience sampling dengan mendapatkan 67 responden dalam perusahaan tersebut. Metode penelitian ini menggunakan analisis regresi ganda. Pengujian hipotesis yang dilakukan di dalam penelitian ini yaitu untuk mengetahui apakah terdapat pengaruh antara motivasi terhadap kinerja karyawan Matahari Department Store, di Mall Ciputra. Dan terdapat pengaruh antara kepuasan kerja terhadap kinerja karyawan Matahari Department Store, di Mall Ciputra.
Prediksi Commitment, Trust, Perceived Value Dan Customer Satisfaction Terhadap Customer Loyalty
Authors: Wina Wina , Masman Ronnie Resdianto
Published: February 2022

This study aims to test empirically whether commitment, trust, perceived value, and customer satisfaction is a positive predictor of Flazz BCA card customer loyalty in Economic Faculty of Tarumanagara University. The research method used in this research is by questionnaire method that is done systematically based in research objectives. This research use convenience sampling as method, the number of respondents taken for research is 137 respondent. Data processing techniques using multiple regression analysis what helped by SPSS for Windows Version 23.0 program. The analytical method used is the F- test, t- test, and multiple regression analysis. From the result of research show that commitment is a positive predictor on customer loyalty, trust is a not positive predictor on customer loyalty, perceived value is a not positive predictor on customer loyalty, and customer satisfaction is a positive predictor on customer loyaltyTujuan dari penelitian ini adalah untuk menguji secara empiris bahwa commitment, trust, perceived value, dan customer satisfaction merupakan prediktor positif customer loyalty pada pengguna kartu Flazz BCA di Fakultas Ekonomi Universitas Tarumanagara. Metode penelitian yang digunakan dalam penelitian ini adalah dengan menggunakan kuisioner yang dilakukan secara sistematis sesuai dengan tujuan penelitian. Penelitian ini menggunakan convenience sampling sebagai metode pengumpulan sampel, jumlah responden yang diambil untuk penelitian ini adalah 137 responden. Teknik pengolahan data menggunakan analisis regresi berganda yang dibantu dengan menggunakan program SPSS (Statistical Product and Service Solution) versi 23.Metode analisis yang digunakan adalah uji F, uji t, dan analisis regresi berganda. Dari hasil penelitian menunjukkan bahwa commitment merupakan prediktor positif customer loyalty, trust dan perceived bukan merupakan prediktor positif customer loyalty, dan customer satisfaction merupakan prediktor positif customer loyalty.
Pengaruh Profitabilitas, Likuiditas, Dan Ukuran Perusahaan Terhadap Keputusan Lindung Nilai
Authors: Fransisca Fransisca , Natsir Khairina
Published: February 2022

The purpose of this research is to investigate the influence of profitability, liquidity, and firm size on hedging decision. The population of this research is the manufacturing company sector automotive that listed in the Indonesia Stock Exchange in 2013 – 2017. The sample used in this research consist of 12 manufacturing companies in the automotive sector. The sampling method is non probability sampling with the sampling technique using purposive sampling. The analysis is performed by using regression analysis logistic. The result show profitability and firm size have positive effect on hedging decision. Liquidity has negative effect on hedging decisionTujuan dari penelitian ini adalah untuk mengetahui pengaruh dari profitabilitas, likuiditas, dan ukuran perusahaan terhadap keputusan lindung nilai. Populasi dalam penelitian ini adalah perusahaan manufaktur sektor industri otomotif yang terdaftar di Bursa Efek Indonesia pada tahun 2013 – 2017. Sampel yang digunakan dalam penelitian ini terdiri dari 12 perusahaan manufaktur sektor industri otomotif. Metode pengambilan sampel yang digunakan yaitu non probability sampling dengan teknik pengambilan sampel menggunakan purposive sampling. Analisis yang digunakan adalah analisis regresi logistik. Hasil menunjukkan bahwa profitabilitas dan ukuran perusahaan berpengaruh positif terhadap keputusan lindung nilai. Likuiditas berpengaruh negatif terhadap keputusan lindung nilai.
Faktor Yang Mempengaruhi Cash Holding Perusahaan Manufaktur Yang Terdaftar Di BEI
Authors: Pasaribu Gretl Sarah , Nuringsih Kartika
Published: February 2022

The purpose of this research is to examine whether 1) firm size has an impact on corporate cash holding of manufacturing companies in Indonesia, 2) growth opportunities has an impact on corporate cash holding of manufacturing companies in Indonesia, 3) cash flow volatility has an impact on corporate cash holding of manufacturing companies in Indonesia, 4) leverage has an impact on corporate cash holding of manufacturing companies in Indonesia, 5) dividend payments has an impact on corporate cash holding of manufacturing companies in Indonesia. Sample was selected using purposive sampling method amounted to 237 observations. The result of this study shows that firm size has a significant negative impact on corporate cash holdings, growth opportunities has a non-significant positive impact on corporate cash holdings, cash flow volatility has a non-significant negative impact on corporate cash holdings, leverage has a significant negative impact on corporate cash holdings, and dividend payments has a non-significant negative impact on corporate cash holdingsTujuan dari penelitian ini adalah untuk menganalisis apakah 1) ukuran perusahaan berpengaruh terhadap jumlah kas yang dipegang perusahaan manufaktur di Indonesia, 2) peluang pertumbuhan berpengaruh terhadap jumlah kas yang dipegang perusahaan manufaktur di Indonesia, 3) volatilitas arus kas berpengaruh terhadap jumlah kas yang dipegang perusahaan manufaktur di Indonesia, 4) tingkat hutang berpengaruh terhadap jumlah kas yang dipegang perusahaan manufaktur di Indonesia, 5) pembayaran dividen berpengaruh terhadap jumlah kas yang dipegang perusahaan manufaktur di Indonesia. Sampel yang diteliti sejumlah 237 observasi dipilih dengan metode purposive sampling. Hasil penelitian ini menunjukkan bahwa ukuran perusahaan memiliki pengaruh negatif yang signifikan terhadap jumlah pemegangan kas, peluang pertumbuhan memiliki pengaruh positif yang tidak signifikan terhadap jumlah pemegangan kas, volatilitas arus kas memiliki pengaruh negatif yang tidak signifikan terhadap jumlah pemegangan kas, tingkat hutang memiliki pengaruh negatif yang signifikan terhadap jumlah pemegangan kas, dan pembayaran dividen memiliki pengaruh negatif yang tidak signifikan terhadap jumlah pemegangan kas.
Pengaruh Profitabilitas, Likuiditas Dan Ukuran Perusahaan Terhadap Struktur Modal
Authors: Liang Inggrid , Natsir Khairina
Published: February 2022

The purpose of this research is to investigate the influence of profitability, liquidity and firm size on the capital structure. The population is the Manufacturing Company of the Consumer Goods Industrial Sector listed in the Indonesia Stock Exchange in 2013-2017. The sample used in this research consists of 31 manufacturing companies in the consumer goods industrial sector. This research use the non probability sampling and purposive sampling technique. The analysis is performed by using Panel Data Regression Analysis with random effect method in testing the hypothesis. The result shows that profitability have a negative effect on capital structure, liquidity have a negative effect on capital structure and firm size have a positive effect on capital structureTujuan penelitian ini adalah untuk mengetahui pengaruh profitabilitas, likuiditas dan ukuran perusahaan terhadap struktur modal. Populasi dalam penelitian ini adalah Perusahaan Manufaktur Sektor Industri Barang Konsumsi yang terdaftar di Bursa Efek Indonesia pada tahun 2013-2017. Sampel yang digunakan terdiri dari 31 perusahaan manufaktur sektor industri barang konsumsi. Metode pengambilan sampel menggunakan non probability sampling dan teknik purpsive sampling. Analisis dilakukan dengan menggunakan Analisis Regresi Data Panel dengan metode Random Effect dalam pengujian hipotesis. Hasil menunjukkan bahwa profitabilitas berpengaruh negatif terhadap struktur modal. Likuiditas berpengaruh negatif terhadap struktur modal. Ukuran perusahaan berpengaruh positif terhadap struktur modal.
Pengaruh Corporate Governance Terhadap Nilai Perusahaan Manufaktur Yang Terdaftar Di BEI
Authors: Nathania Levina , Widjaja Indra
Published: February 2022

The purpose of this research are to find out the impact of corporate governance on firm value in manufacturing companies of consumption goods industrial sector listed in Indondesia Stock Exchange in 2014-2017. Researcher used purposive sampling to collect samples. There are 17 sample of manufacturing companies of consumption goods industrial sector on this research. Data source are collected from www.idx.co.id, and then using Panel Data regression analysis. The results concludes that managerial ownership have positive effect on firm value, institutional ownership have positive effect on firm value, independent commissary have negative effect on firm value, and audit committee have positive effect on firm valueTujuan dari penelitian ini adalah untuk mengetahui pengaruh corporate governance terhadap nilai perusahaan pada perusahaan manufaktur industri barang konsumsi yang terdaftar di Bursa Efek Indonesia periode 2014-2017. Peneliti menggunakan purposive sampling dalam mengumpulkan data. Sampel terdiri dari 17 perusahaan manufaktur sektor industri barang konsumsi. Sumber data diperoleh dari www.idx.co.id, dan analisis dilakukan dengan menggunakan Analisis Regresi Data Panel. Hasil menunjukkan bahwa kepemilikan manajerial memiliki pengaruh positif terhadap nilai perusahaan. Kepemilikan institusional memiliki pengaruh positif terhadap nilai perusahaan. Dewan komisaris independen memiliki pengaruh negatif terhadap nilai perusahaan. Komite audit memiliki pengaruh positif terhadap nilai perusahaan.
Pengaruh Mekanisme Corporate Governance Terhadap Financial Distress
Authors: Yosua Yosua , Pamungkas Ary Satria
Published: February 2022

The purpose of this research is to analyze the effect of corporate governance mechanism on financial distress likelihood. This research using instituonal ownership, managerial ownership, independent commissioner, and board of directors size to explain corporporate governance mechanism. The population of this research are all firms listed in Indonesia Stock Exchange. Sample was selected using purposive sampling method amounted to 346 firms for 8 years from 2010-2017. Data processing techniques using STATA 14.2. Logistic regression was applied to test the hypothesis. The results of this study are institutional ownership, managerial ownership, and independent commissioner has no effect on financial distress likelihood. Board of directors size are found to have negative and significant impact toward financial distress likelihood.Tujuan dari penelitian ini adalah untuk menganalisis pengaruh mekansisme corporate governance terhadap kemungkinan terjadinya financial distress. Penelitian ini menggunakan kepemilikan institusional, kepemilikan manajerial, komisaris independen, dan ukuran dewan direksi untuk menjelaskan mekanisme corporate governance. Populasi dari penelitian ini adalah seluruh perusahaan yang tercatat di Bursa Efek Indonesia. Sampel dipilih menggunakan metode purposive sampling dengan jumlah 346 perusahaan selama 8 tahun periode 2010-2017. Teknik pengolahan data menggunakan program STATA 14.2. Regresi logistik digunakan dalam penelitian untuk menguji hipotesis. Hasil dari penelitian ini adalah kepemilikan institusional, kepemilikan manajerial, dan komisaris independen tidak berpengaruh terhadap kemungkinan terjadinya financial distress. Ditemukan pengaruh negatif dan signifikan dari ukuran dewan direksi terhadap kemungkinan terjadinya financial distress.
Pengaruh Pendidikan Kewirausahaan Terhadap Niat Berwirausaha Yang Dimediasi Efikasi Diri Mahasiswa Manajemen
Authors: Chandra Ryan Aditya , Budiono Herlina
Published: February 2022

The purpose of this study is to explain the effect of entrepreneurship education to entrepreneurial intention mediated by self-efficacy of students on Management Department, Faculty of Economics, Universitas Tarumanagara. The subject of this study is 118 students of Entrepreneurship Concentration, Management Department, who have taken Building and Managing Entrepreneurship Business or Business Planning and Simulation course. Data are collected using a questionnaire. Data collected are analyzed using linear multiple regression analysis using IBM SPSS 23 software. The results of this study indicate that there is an effect of entrepreneurship education to entrepreneurial intention and self-efficacy. In addition, there is an effect of self-efficacy to entrepreneurial intention. Furthermore, the results of this study indicate that self-efficacy mediates the relationship between entrepreneurship education and entrepreneurial intention.Tujuan penelitian ini adalah untuk menjelaskan pengaruh pendidikan kewirausahaan terhadap niat berwirausaha yang dimediasi efikasi diri mahasiswa Jurusan Manajemen Fakultas Ekonomi Universitas Tarumanagara. Subyek penelitian ini adalah 118 mahasiswa Jurusan Manajemen Konsentrasi Kewirausahaan dimana mereka sudah mengambil mata kuliah Membangun dan Mengelola Usaha Kewirausahaan atau Perencanaan dan Simulasi Bisnis. Data dikumpulkan dengan menggunakan kuesioner. Data yang dikumpulkan dianalisis menggunakan analisis regresi linear ganda menggunakan perangkat lunak IBM SPSS 23. Hasil penelitian ini menunjukkan terdapat pengaruh pendidikan kewirausahaan terhadap niat berwirausaha dan efikasi diri. Selain itu, terdapat pengaruh efikasi diri terhadap niat berwirausaha. Lebih lanjut lagi, hasil penelitian menunjukkan bahwa efikasi diri memediasi kaitan antara pendidikan kewirausahaan dan niat berwirausaha.
Perilaku Kewirausahaan Terwaralaba: Studi Pada Waralaba Makanan & Minuman di Jakarta
Authors: Pratama Wijaya , Selamat Franky
Published: February 2022

The purpose of this research is to find out franchisee’s entrepreneurial behavior of food and baverage franchise in Jakarta . Sample was selected using nonprobabiliy sampling method amounted to 30 respondents franchisee in Indonesia. Data were measured by Likert scale and analyzed with processing techniques using IBM SPSS 20 program. The result of this study shows that, 1) intrinsic and extrinsic goals are positive predictors that not significant on franchisee’s entrepreneurial behavior, 2) desire for autonomy are positive predictors that not significant on franchisee’s entrepreneurial behavior, 3) relational satisfaction are positive predictors that not significant on franchisee’s entrepreneurial behavior, 4) economic satisfaction are positive predictors that not significant on franchisee’s entrepreneurial behavior, 5) local competition are positive predictors that not significant on franchisee’s entrepreneurial behavior, 6) urban store location are positive predictors that not significant on franchisee’s entrepreneurial behavior. Several recommendations for research are presented based on conclusions and suggestions on the results of this study.Tujuan dari penelitian ini adalah untuk mengetahui perilaku kewirausahaan terwaralaba pada waralaba makanan dan minuman di Jakarta. Sampel dipilih menggunakan Teknik nonprobability sampling dengan jumlah 30 responden terwaralaba di Indonesia. Data diukur dengan skala Likert dan dianalisi dengan Teknik proses yang menggunakan program IBM SPSS 20. Secara keseluruhan, hasil penelitian ini menunjukkan bahwa, 1) tujuan intrinsik dan ekstrinsik merupakan prediktor positif yang tidak signifikan terhadap perilaku kewirausahaan terwaralaba, 2) keinginan untuk otonomi merupakan prediktor positif yang tidak signifikan terhadap perilaku kewirausahaan terwaralaba, 3) kepuasan relasi merupakan prediktor positif yang tidak signifikan terhadap perilaku kewirausahaan terwaralaba, 4) kepuasan ekonomi merupakan prediktor positif yang tidak signifikan terhadap perilaku kewirausahaan terwaralaba, 5) pesaing lokal merupakan prediktor positif yang tidak signifikan terhadap perilaku kewirausahaan terwaralaba, 6) lokasi unit perkotaan merupakan prediktor positif yang tidak signifikan terhadap perilaku kewirausahaan terwaralaba. Beberapa rekomendasi untuk penelitian disajikan berdasarkan kesimpulan dan saran mengenai hasil penelitian ini.
Pengaruh Biaya Peralihan, Kualitas Layanan, dan Kepuasan Pelanggan Terhadap Kesetiaan Pelanggan
Authors: Oentoro Wenny , Selamat Frangky
Published: February 2022

This study is conducted to investigate and determine the effect of switching cost, service quality, and customer satisfaction to customer loyalty on cellular service provider users in Jakarta. The sampling technique used purposive sampling involving 100 cellular service provider users selected at random to be sampled. Data collection techniques were conducted using questionnaires distributed through Google Form. Data analysis techniques in this study using Structural Equation Modeling-Partial Least Square (SEM) with data analysis tool using Smart PLS 3. The results of this study is switching cost, service quality, and customer satisfaction positively and significantly affect customer loyalty.Penelitian ini bertujuan untuk mengetahui pengaruh biaya peralihan, kualitas layanan, dan kepuasaan pelanggan terhadap kesetiaan pelanggan pengguna layanan seluler di Jakarta. Teknik pengambilan sampel menggunakan purposive sampling dan sampel sebanyak 100 pengguna layanan seluler. Teknik pengumpulan data menggunakan kuisioner yang disebarkan melalui Google Form. Teknik analisis data menggunakan Structural Equation Modeling-Partial Least Square (SEM-PLS) dan Smart PLS 3 sebagai alat pengolah data. Hasil dari penelitian ini adalah biaya peralihan, kualitas layanan, dan kepuasaan pelanggan mempengaruhi kesetiaan pelanggan.
Pengaruh Teknologi, Organisasi, Dan Lingkungan Eksternal Terhadap Kinerja Bisnis Umkm Di Jakarta Melalui Adopsi Media Sosial Sebagai Variabel Mediasi
Authors: Rapali Joshua Alfian , Soelaiman Lydiawati
Published: February 2022

The purpose of this study was to examine the influence of technology, organization, and the external environment on the business performance of MSMEs in Jakarta through social media adoption as a mediating variable. The sample used was a nonprobability sampling method of 50 respondents. The results of this study indicate that technology, and organizations do not have a significant influence on social media adoption, the external environment has a significant influence on social media adoption, and social media adoption has a significant influence on business performance. Whereas social media adoption is not able to significantly mediate technology, and organization on business performance, and social media adoption can significantly mediate the external environment to business performance.Tujuan dari penelitian ini adalah untuk menguji pengaruh teknologi, organisasi, dan lingkungan eksternal terhadap kinerja bisnis UMKM di Jakarta melalui adopsi media sosial sebagai variabel mediasi. Sample yang digunakan menggunakan metode nonprobability sampling sebanyak 50 responden. Hasil penelitian ini menunjukkan bahwa teknologi, dan organisasi tidak memiliki pengaruh yang signifikan terhadap adopsi media sosial, lingkungan eksternal memiliki pengaruh yang signifikan terhadap adopsi media sosial, dan adopsi media sosial memiliki pengaruh yang signifikan terhadap kinerja bisnis. Sedangkan adopsi media sosial tidak mampu memediasi secara signifikan teknologi, dan organisasi terhadap kinerja bisnis, dan adopsi media sosial mampu memediasi secara signifikan lingkungan eksternal terhadap kinerja bisnis.
The Effect Of Entrepreneurial Self Efficacy And Entrepreneurial Creativity To Entrepreneurial Intention From Students In Tarumanagara University
Authors: Martin Nandinto , Widjaja Hannes Oey
Published: February 2022

This study aimed to examine how an Entrepreneurial Self-efficacy, and Entrepreneurial Creativityaffect Entrepreneurial Intention. The sample in this study were 100 students in Tarumanagara University.. The sampling technique used is purposive sampling. Data collection technique used is questionnaire. The findings show that Entrepreneurial Self-efficacy and Entrepreneurial Creativitydid  affect Student’s Entrepreneurial Intention in Tarumanagara Univesity .
A promising method of APG utilization at MNGS in order to ensure environmental safety
Authors:   St. Petersburg State Marine Technical University, St. Petersburg, Russia, Zakoroev R.R. , Nifontov I.A. ,   St. Petersburg State Marine Technical University, St. Petersburg, Russia, Sergeeva A.S. ,   St. Petersburg State Marine Technical University, St. Petersburg, Russia
Published: February 2022

The paper considers the relevance of using a membrane gas separation unit of the MGB-2.5-95.0-1500 type for the energy utilization of associated petroleum gas at offshore oil and gas facilities.
КАК И ЧТО ДЕЛАТЬ? АНАЛИЗ ПРИЧИН ПРАВОВЫХ РИСКОВ ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ В ИННОВАЦИОННОЙ И ПРЕДПРИНИМАТЕЛЬСКОЙ ДЕЯТЕЛЬНОСТИ СТУДЕНТОВ
Authors: Линь Ю.
Published: February 2022

Под призывом «массового предпринимательства и инновации» страны инновация и предпринимательство студент в нашей стране стали одним из важных направлений деятельности университета. Различные конкурсы студентов по инновациям и предпринимательству, проводимые по всей стране, в значительной степени способствовали повышению инновационных и предпринимательских способностей студентов, а достижение по знанию студентов в области инновации и предпринимательства продолжают расти. Однако стоит отметить, что права интеллектуальной собственности на инновации и предпринимательство студентов сопряжены со сложными юридическими рисками. Причина состоит в том, что несоответствие между инновационным мышлением студентов и осведомленностью о защите интеллектуальной собственности, отсутствие интеграции между инновационным и предпринимательским образованием студентов и юридическим образованием, незрелая среда для защиты интеллектуальной собственности в обществе, а также проблемы, существующие в деятельности национальных законов об интеллектуальной собственности и так далее. С точки зрения стимулов, углубленный анализ причины правовых рисков интеллектуальной собственности в инновациях и предпринимательстве студентов может предотвратить и уменьшить количество споров, а также лучше защищать права и интересы студентов.
The analysis of the impact of business process outsourcing on the profitability of commercial airline in the conditions of a global pandemic
Authors: Semeriahina Myroslava , Hryhorak Mariia , Bugayko Dmytro
Published: February 2022

This article provides an economic assessment of the impact of the global pandemic COVID-19 on the economic efficiency of commercial airlines. The dominant role of airlines in the formation of flexible service supply chain and service travel chain has been identified, which increases their customer orientation and competitiveness in the air transportation market, as well as allows them to adapt more quickly to the changing logistics environment. It has been proven that the use of the outsourcing mechanism in combination with the diversification of services provided, allows, on the one hand, to create added consumer value for customers, and on the other - necessitates building complex integration relationships with business partners in service supply chains. Analysis of statistics and experience of leading airlines with different business models in the air transportation market has shown that outsourcing business processes in a global pandemic has allowed carriers to optimize costs according to the volume of work, respond flexibly to changes in consumer demand and better overcome negative impacts external logistics environment.
Antimicrobial Activity of Aqueous and Ethanolic Extraction of Ziziphus spina-christi (L.) Desf. Var. Microphylla Leaves Against Different Pathogens
Authors:   Department of Clinical Medicine, Faculty of Veterinary Medicine, University of Khartoum, Sudan, RRM Salih , HH Gibreel ,   Department of Silviculture, Faculty of Forestry, University of Khartoum, Sudan, MA Daldoum ,   Department of Silviculture, Faculty of Forestry, University of Khartoum, Sudan, ZM Hammad ,   Department of Silviculture, Faculty of Forestry, University of Khartoum, Sudan, AI Ahmed ,   Faculty of Natural Resources, University of Kordofan, Sudan
Published: February 2022

In this study antimicrobial activity of aqueous and ethanolic extraction of Ziziphus spina-christi (L.) Desf. var. microphylla leaves was evaluated against Staphylococcus aureus, Staphylococcus epidermidis, Klebsiella pneumonia, Escherichia coli, Salmonella dublin, Yeast and Candida albicans isolated from animals in Laboratory of Microbiology at the Faculty of Veterinary Medicine, University of Khartoum, Sudan. Leaves extracts were prepared at concentration of 20g/100 ml and the agar diffusion method was adopted to assess the antimicrobial activity of the prepared extracts against the isolated microorganisms. The results indicated that, the ethanolic Extract (E) and aqueous extract (W) were affected, the diameter of the inhibitory zone in cm was ranged between 1.60- 2.90 cm in W while in E the zones between 2.20- 3.50 cm.
Association of Acinetobacter baumannii with Soft Rot Disease of Carrot in India
Authors:   Department of Plant Pathology, University of Agricultural Sciences, Bangalore, India, BS Chandrashekar , MK PrasannaKumar ,   Department of Plant Pathology, University of Agricultural Sciences, Bangalore, India, P Buela Parivallal ,   Department of Plant Pathology, University of Agricultural Sciences, Bangalore, India, D Pramesh ,   Rice Pathology Laboratory, All India Coordinated Rice Improvement Programme, Gangavathi, University of Agricultural Sciences, Raichur, India, SP Swathi ,   Department of Plant Pathology, University of Agricultural Sciences, Bangalore, India, NB Sahana ,   Department of Plant Pathology, University of Agricultural Sciences, Bangalore, India, HB Mahesh ,   Department of Genetics and Plant Breeding, College of Agriculture, V. C. Farm, Mandya, India, ME Puneeth ,   Department of Plant Pathology, University of Agricultural Sciences, Bangalore, India
Published: February 2022

Soft rot disease of carrots is an important limiting factor of carrot production. In this study, carrot roots showing typical soft rot symptoms were identified in the fields, and diseased and healthy root samples were collected for pathogen identification. The pathogen was isolated using an enriched bell pepper method. The bell pepper developed a water-soaked lesion around the pricking region when it was pricked after stabbing the diseased root whereas, no symptoms were produced when bell pepper was pricked after stabbing a healthy carrot root. From samples of the infected roots, circular, whitish, smooth, mucoid, round, convex, and medium-sized colonies were formed on the nutrient agar medium and were morphologically identified as Acinetobacter spp. Pure culture for four isolates was obtained, and one of the isolates (AB1) was further subjected to 16S rDNA sequencing. The BLAST analysis of the 16S rDNA confirmed the identity of AB1 as Acinetobacter baumannii. Pathogenicity test using whole-root assay and slice assay proved AB1 as pathogenic on carrot by producing water-soaked lesion, maceration, and rotting symptoms, whereas water inoculated roots remain healthy. The rotting symptoms on the artificially diseased carrot roots were similar to those caused by Pectobacterium caratovorum and Klebsiella variicola on the carrot. Based on the colony morphology, biochemical tests, and 16S rDNA sequence identity followed by pathogenicity assays, it is evident that A. baumannii causes soft rot disease in carrots. This report is essential for developing specific diagnostics and management against this newly emerging bacterial pathogen of carrot.
Soot and charcoal are reservoirs of extracellular DNA
Authors: Jelavic Stanislav , Thygesen Lisbeth Garbrecht , Magnin Valerie , Findling Nathaniel , Müller Sascha , Meklesh Viktoriia , Sand Karina Krarup
Published: February 2022

The vast potential of using sediment adsorbed DNA as a window to past and present biodiversity rely on the ability of solid surfaces to adsorb environmental DNA. However, a comprehensive insight into DNA adsorption at surfaces in general is lacking. Soot and charcoal are carbonaceous materials widespread in the environment where they readily can come in contact with extracellular DNA shed from organisms. Using batch adsorption, we measured DNA adsorption capacity at soot and charcoal as a function of solution composition, time and DNA length. We observed that the adsorption capacity for DNA is highest at low pH, that it increases with solution concentration and cation valency and that the activation energy for DNA adsorption at both soot and charcoal is ~50 kJmol-1, suggesting strong binding. We demonstrate how the interaction between DNA and soot and charcoal partly occurs via terminal base pairs, suggesting that, besides electrostatic forces, hydrophobic interactions play an important role in binding. The large adsorption capacities and strong binding of DNA to soot and charcoal are features important for eDNA research and provide a motivation for use of carbonaceous materials from, e.g. anthropogenic pollution or wildfire as sources of biodiversity information.
Seeded Growth of Mesoscale Quantum-Confined Semiconductor Nanoplatelets
Authors: Tenney Stephanie , Tan Lauren , Sonnleitner Mikayla , Sica Anthony , Shin Ashley , Atallah Timothy , Caram Justin
Published: February 2022

Colloidally grown (II-VI) semiconductor nanoplatelets display significantly smaller lateral dimensions than their mechanically exfoliated 2D van der Waal (vdW) semiconductor counterparts. Here, we show that a seeded growth procedure allows us to significantly extend the lateral area of atomically precise nanoplatelets to the mesoscale (>1 μm^2). Using CdTe nanoplatelets as a model system, we optimize reaction parameters to expand a variety of nanoplatelets with different thickness and compositions. In situ spectroscopy results demonstrate that large NPLs grow through a mechanism of lateral ripening of seeds. Correlative optical spectroscopy and electron microscopy measurements show that the photoluminescence displays resolvable spatial inhomogeneities, similar to 2D semiconductors. Overall, these mesoscale nanoplatelets can be analogized to vdW semiconductors, with the added advantages of scalable colloidal synthesis, thickness tunability and solution processability.
Impact of Remdesivir Incorporation Along the Primer Strand on SARS-CoV-2 RNA-dependent RNA polymerase
Authors: Naseem-Khan Sehr , Berger Madison B. , Leddin Emmett M. , Maghsoud Yazdan , Cisneros G. Andrés
Published: February 2022

Remdesivir was the first antiviral drug that received emergency use authorization from the United States Food and Drug Administration to treat COVID-19. Remdesivir is a nucleotide analogue that targets the RNA-dependent RNA polymerase (RdRp) of coronaviruses, including SARS-CoV-2. The solution of multiple RdRp structures has been one of the main axes of research in the race against the SARS-CoV-2 virus. Several hypotheses of the mechanism of inhibition of RdRp by remdesivir have been proposed, although open questions remain. This work explores the impact of up to four incorporations of remdesivir along the primer strand on RdRp by means of molecular dynamics (MD) simulations. The simulation results suggest that the overall structure and dynamical behavior of RdRp is destabilized by remdesivir. The strongest impact on the structure and dynamics are observed after three incorporations, when remdesivir is located at position -A3. Our results are consistent with previously reported experimental and computational results, and help provide further atomic-level detail on the role played by remdesivir on the disruption of RNA synthesis by RdRp.
Excited state modulation in Donor-Substituted Multi-resonant Thermally Activated Delayed Fluorescence Emitters
Authors: Wu Sen , Li Wenbo , Yoshida Kou , Hall David , Madayanad Suresh Subeesh , Sayner Thomas , Gong Junyi , Beljonne David , Olivier Yoann , Samuel Ifor , Zysman-Colman Eli
Published: February 2022

Examples of multi-resonant thermally activated delayed fluorescence (MR-TADF) emitters that emit at longer wavelengths remain rare. To reach that goal, we decorate different numbers and types of electron-donors about a central MR-TADF core, DiKTa. Depending on the identity and number of donor groups, the excited state either remains short range charge transfer (SRCT) and thus characteristic of an MR-TADF emitter or becomes a long-range charge transfer (CT) that is typically observed in donor-acceptor TADF emitters. The impact is that in three examples, Cz-DiKTa, Cz-Ph-DiKTa and 3Cz -DiKTa, which emit from a SRCT state, the emission remains narrow, while in four examples, TMCz-DiKTa, DMAC-DiKTa, 3TMCz-DiKTa and 3DMAC-DiKTa, which emit via a CT state, the emission broadens significantly. Through this strategy, the organic light-emitting diodes fabricated with the three MR-TADF emitters show maximum electroluminescence emission wavelengths, EL, of 511, 492 and 547 nm with moderate full-width at half maxima (FWHM) of 62, 61 and 54 nm, respectively. Importantly, each of these devices show high maximum external quantum efficiencies (EQEmax) of 24.4%, 23.0% and 24.4%, which are amongst the highest reported with ketone-based MR-TADF emitters. OLEDs with D-A type emitters, DMAC-DiKTa and TMCz-DiKTa, also show high efficiencies, with EQEmax of 23.8% and 20.2%, but accompanied by broad emission at EL of 549 and 527 nm, respectively. Noteworthy is that the DMAC-DiKTa-based OLED shows very small efficiency roll-off, and its EQE remains 18.5% at 1000 cd m-2. Therefore, this work demonstrates that manipulating the nature and numbers of donor groups decorating a central MR-TADF core is a promising strategy for both red-shifting the emission and improving the performance of the OLEDs.
Unravelling the effect of non-drug spacers on a true drug-polymer and a comparative study of their antimicrobial activity
Authors: Sartaliya Shaifali , Gowri Vijayendran , Chopra Vianni , Roy Himadri Shekhar , Ghosh Deepa , Jayamurugan Govindasamy
Published: February 2022

Several studies have been conducted on polymerisation of drug units using spacers or other polymeric units. In order to study the importance of spacers in drug polymers, we designed polymers with and without spacers. As a proof of concept, herein, we present a comparative study on the efficacy of antibacterial activity using a polymeric biocide (PB) C0P1 having no spacer (0%) and two other PBs with varied spacer content (C2P2:29%, C10P3:53%). We considered C0P1 as a potential new type of PB generated from a widely used fluoroquinolone antibiotic, ciprofloxacin 1, by a simple self-condensation activation with thionyl chloride. Monomer 2 (formylated methyl ester of 1) was polymerised with ethylenediamine (C2) and 1,10-diaminodecane (C10) to provide C2P2 and C10P3, respectively. The trend for minimum inhibitory concentration study against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) was observed as 1>C0P1>C2P2=C10P3>>2. Further, after coating on nylon threads, the non-spacer polymer C0P1 showed enhanced zone of inhibition (ZOI) than monomer 1 as well as the spacer polymers owing to its superior coating ability and sustained drug release capabilities. Thus, this study clearly states that the bio-efficacy of a drug-polymer could be retained and enhanced in the absence of non-bioactive spacer units.
Programmable Living Materials Constructed with Dynamic Covalent Interface between Synthetic Polymers and B. subtilis
Authors: Jo Hyuna , Sim Seunghyun
Published: February 2022

With advances in the field of synthetic biology increasingly allowing us to engineer living cells to perform intricate tasks, incorporating these engineered cells into the design of synthetic polymeric materials will enable programming materials with a wide range of biological functionalities. However, employable strategies for the design of synthetic polymers that seamlessly integrate cellular functionalities in materials are still largely limited. Herein, we report the first example of programmable living materials constructed with a dynamic covalent interface between designed synthetic polymers and engineered B. subtilis cells. We identified a molecular motif that forms reversible dynamic covalent bonds on B. subtilis cell surface. Combining block copolymers bearing this motif with genetically engineered B. subtilis yields programmable living materials that can be equipped with functionalities such as biosensing and on-demand elution of recombinant proteins. We further demonstrated that encapsulated cells could be reversibly retrieved and subjected to biological analyses. This work advances the current capabilities in engineered living materials, establishes the groundwork for building a myriad of synthetic polymeric materials integrating engineered living cells, and provides a platform for understanding the biology of cells confined within materials.
PENGARUH KEMIRINGAN STRAIGHT BLADE TERHADAP PENINGKATAN KEMAMPUAN SELF-STARTING TURBIN HIDROKINETIK ARTICULATING H-ROTOR
Authors: Rianti Desy , Nindito Dwi Anung , Saputra Raden Haryo
Published: February 2022

The Articulating of H-Rotor is a development of the turbine from H-Darrieus which has a straight blade tilted with the aim of correcting poor self-starting due to the dominance of lift force. How likely is the influence of straight blade slope on turbine performance and it is important to be examined. The aim of this study was to find out the effect of the straight blade slope of the Articulating H-Rotor turbine to increase the self-starting ability. Hydrokinetic turbine experimental test method was carried out in a water channel (flume) using 3 NACA 0018 profile blades with varying inclination angles of 0o (vertical blade), 30o (inflated blade) and -30o (cupped blade). The result indicated that the Articulating H-Rotor hydrokinetic turbine with a blade slope of 0o had a larger RPM value and it was more dominant in working with lift force. The Articulating H-Rotor hydrokinetic turbine with a blade tilted of 30o provides higher torque and increases drag, increasing self-starting for rotation. The shape of the turbine frontal area with a blade slope of 30o was better able to respond the kinetic energy that raised from the flow velocity distribution profile of the water flow. The results of this study can contribute to the design of the tilted blade H-Darrieus turbine.
Pengaruh Variasi Jenis Logam Pengisi pada Pengelasan Alumunium 6061-T4 dengan Proses GTAW terhadap Sifat Mekanik
Authors: Martijanti  , Syahminan
Published: February 2022

Pengelasan merupakan teknologi yang banyak digunakan untuk penyambungan logam. Namun hasil pengelasan yang diterapkan pada paduan aluminium tidak selalu menghasilkan sambungan dengan kualitas yang baik, hal ini dapat disebabkan salah satu faktornya adalah dalam menentukan jenis logam pengisi. Penentuan jenis logam pengisi ini akan menentukan kekuatan hasil las dari paduan aluminium. Untuk melihat sejauh mana pengaruh jenis logam pengisi tersebut, maka pada penelitian ini penulis menentukan tiga jenis logam pengisi yaitu ER 4043, ER 2319, ER 5056 pada proses pengelasan GTAW untuk paduan Aluminium 6061-T4.

Dari hasil pengujian tarik diperoleh nilai kekuatan tarik terbesar pada paduan Aluminium 6061-T4 yang menggunakan jenis logam pengisi ER 4043 yaitu sebesar 19,694 kgf/mm2. Hasil distribusi kekerasan untuk ketiga jenis logam pengisi nilai kekerasan paling rendah terletak pada daerah HAZ sehingga pada pengujian tarik spesimen patah rata-rata di daerah HAZ karena pada daerah tersebut terjadi overagedregion.
Reciprocidades "otras". El conocimiento antropológico en retrospectiva y prospectiva en la amazonía ecuatoriana
Authors: Tocancipá-Falla Jairo
Published: February 2022

La producción antropológica supone una representación de un conocimiento, ajeno o familiarmente extrañado, que muchas veces oculta o no enseña el tipo de relaciones que establece el antropólogo con sus pares en campo. Nos acostumbramos, tal vez por la tendencia “objetivista”, a hablar de las reciprocidades de los “otros” y no de “nuestras” reciprocidades implícitas o explicitas que sostenemos para ser aceptados en campo. Si bien en el Don de Marcel Mauss se examina la reciprocidad en “sociedades arcaicas”, dicho planteamiento es revisado en este articulo para analizar las relaciones, que establece el/la antropólogo/a cuando recién llega al campo, pero con otras temporalidades, contextos y actores sociales. El caso de reflexión corresponde a un conjunto de experiencias vividas en la Amazonía ecuatoriana donde en diferentes contextos y escenarios, algunos líderes y comuneros de las nacionalidades sacaron a relucir reciprocidades no cumplidas por parte de antropólogos que llegaron a sus territorios en épocas pasadas. Se recomienda entonces una mayor consciencia y orientación con respecto a “otras reciprocidades” en el terreno, cuando se trata de avanzar en otros campos de investigación colaborativa.
Internacionalizar ou Não, Eis a Questão? Ensaio sobre a ABANNE/REA
Authors: Reesink Mísia Lins
Published: February 2022

Este ensaio põe em questão a razão que fundamenta o movimento de transformar a ABANNE em REA, razão esta que o justifica pela necessidade de sua internacionalização. Questionando se internacionalizar é preciso, e se isto deve ser feito de qualquer maneira e a qualquer preço, o trabalho propõe olhar para o fenômeno a partir de duas categorias: “espaço político” e “evento”, em que a primeira tomaria a ABANNE/REA como tempo/espaço de crítica e luta contra-hegemônica, enquanto a segunda incluiria a ABANNE/REA na lógica de um tempo/espaço apolítico e meritocrático. A proposta defendida aqui é de que a ABANNE/REA deve permanecer atuando, prioritariamente, na lógica do “espaço político”, articulada, secundariamente, à lógica do “evento”.
O presente dos canoeiros de Itapuã
Authors: Firmo Fernando
Published: February 2022

Itapuã de águas verdes e cristalinas, cantada em prosa e verso por Vinicius de Morais, seus antigos e novos baianos - na primeira segunda-feira após a festa de Iemanjá no Rio Vermelho de Jorge Amado - é palco de um dos mais belos presentes à rainha das águas. Relembrando a memória de seus ancestrais, a geração atual de canoeiros, vai ao mar agradecer a majestosa rainha, utilizando canoas tradicionais de vinhático e fazem todo o trajeto da praia ao local marcado para se lançar os presentes no remo: agradecem o ano que passou e pedem fartura no por vir. Estas Canoas, para estes homens, são pessoas com nome próprio, memórias, historicidades, estão ativas nas redes de parentesco, possuem necessidades materiais e espirituais. Compartilham alegrias e tristezas na lida diária com o mar, e a elas, neste evento, é oferecida a primeira oração. Não é o pescador que é eleito para levar a imagem de Iemanjá e liderar o Coletivo, e sim, a Canoa mais vistosa, ou como dizem localmente, a Canoa com mais “conceito”, categoria nativa que engloba questões estéticas (e outras de ordem material), assim como questões morais, pois o valor de uma Canoa é dado pelas histórias e historicidades confeccionadas a partir dela, narrando sua qualidades (coragem, conhecimento, destreza, força, sagacidade) em eventos cotidianos ou extraordinários. O ensaio fotográfico que lhes apresento é fruto de intensas pesquisas etnográficas sobre festejos populares que não recebem a atenção dos meios de comunicação de massa e não fazem parte do circuito de festas populares da Bahia cotejados pelo turismo e pelas políticas culturais. Optei pelo formato preto e branco, valorizando silhuetas, no intuito de realçar e mostrar a beleza e poética desses homens e suas canoas, levando oferendas, no final da tarde, depois de um dia de trabalho no mar.
Resolução 510/2016: reflexões desde a inserção em um Comitê de Ética em Pesquisa
Authors: Francisco Deise Juliana , Santana Luciana
Published: February 2022

Este artigo discute alguns aspectos da Resolução 510/2016 à luz da implicação da autora como membro de Comitê de Ética em Pesquisa. Apresenta reflexões sobre temas tais como consentimento livre e esclarecido e vulnerabilidade, problematizando a questão do anonimato do participante em alguns tipos de pesquisa. Conclui que a Resolução 510/2016 apresenta algumas especificidades das pesquisas no campo das Ciências Humanas e Sociais, contribuindo com a avaliação ética das pesquisas e ao respeito à diversidade metodológica das pesquisas, apesar de ainda não concretizar uma efetiva ruptura com a regulação e avaliação ética em pesquisa no Brasil.
Dificil Saber...Ética, Antropologia, Desigualdade e Desenho
Authors: Nieto Olivar José Miguel
Published: February 2022

Nesse curto ensaio revisito rapidamente as imagens que produzi durante a minha tese de doutorado, defendida em abril de 2010 em Porto Alegre. Olho para algumas destas imagens pensando em relação com  questões e discussões sobre ética em pesquisa e antropologia. Não há espaço aqui para um ensaio ou para um artigo, apenas para breves reflexões. O conjunto mais completo de imagens, montadas narrativamente num design orgânico, pode ser visto na minha tese, e uma primeira reflexão foi publicada na Revista Chilena de Antropologia Visual em 2009.No início me preocupou não me colocar em risco em contextos que não conhecia. Me preocupou, depois, não agredir essas mulheres. A máquina fotográfica é um arma, já sabemos. Em contextos de prostituição, tipicamente, um arma de Estado, de violência, de controle e de Verdade.