bluuebunny/crossref_metadata_2025 huggingface dataset:
Pembuatan bioetanol dari umbi ganyong (canna discolor) dengan metode solid state fermentation (SSF)
Authors: Erawati Emi , Sari Cindy Amelia
Published: July 2022

Ganyong adalah tanaman pangan yang mempunyai kandungan gizi cukup tinggi. Tujuan penelitian yaitu untuk mengetahui cara pembuatan bioetanol dari umbi ganyong dengan metode Solid State Fermentation (SSF) dan  menentukan harga konstanta Michaelis Menten pada pembuatan bioetanol dari umbi ganyong dalam pH bervariasi menggunakan metode SSF. Umbi ganyong dicuci dengan air, dikupas kulitnya, dan  diparut. Dari hasil parutan diperas dan dipanaskan dalam panci dengan suhu 100oC selama ±30 menit. Bubur umbi ganyong didinginkan untuk dilanjutkan proses fermentasi. Bubur umbi ganyong diambil sebanyak 250 mL, lalu ditambahkan Saccharomyces cerevisiae sebanyak 10 g, NPK sebanyak 5 g, urea sebanyak 5 g, dan volume starter 200 mL. Bubur umbi dimasukkan ke dalam tempat fermentasi dan ditutup agar tidak terjadi kontak langsung dengan udara. Sampel  dianalisis pada pH 4, 4,5 dan 5 dengan waktu fermentasi selama 0, 3 , 5, 7, 9, 11, 13, 15, dan 17 hari. Berdasarkan hasil penelitian, kadar air, serat kasar, dan pati yang terkandung dalam umbi ganyong berturut-turut adalah 10,10 %, 40,17 %, dan 0,35 %. Kadar glukosa tertinggi dalam penelitian ini pada waktu fermentasi 0 hari dengan pH 5 sebesar 8,2 %. Sedangkan kadar bioetanol tertinggi sebesar 46,08% pada pH 4 pada waktu fermentasi 17 hari. Model kinetika reaksi fermentasi yang paling sesuai adalah Lineweaver and Burk pada pH 5 dengan harga Km sebesar 94,26 g/L.hari dan Vmaks sebesar 30,66 g/L dengan R2 sebesar 0,98.
Efek inhibisi infusa daun benalu kersen (dendrophthoe pentandra (L.) miq) terhadap enzim alfa-glukosidase
Authors: Tioline Naomi W , Sinulingga Sadakata , Subandrate S , Fatmawati F , Safyudin S
Published: July 2022

Daun benalu kersen (Dendrophthoe pentandra (L.) Miq) memiliki potensi sebagai antidiabetes dengan cara menghambat enzim α-glukosidase karena memiliki metabolit sekunder berupa, tanin, saponin, alkaloid, terpenoid, dan flavonoid. Penelitian ini bertujuan untuk mengetahui efek inhibisi daun benalu kersen terhadap enzim α-glukosidase. Penelitian ini merupakan penelitian eksperimental laboratorium secara in vitro dengan metode spektrofotometri yang dilakukan di Laboratorium Kimia Dasar Kedokteran, Fakultas Kedokteran, Universitas Sriwijaya. Daun benalu didapatkan dari penduduk lokal di Kota Palembang. Infusa daun benalu kersen dibagi menjadi 5 konsentrasi (100 ppm, 50 ppm, 25 ppm, 12,5 ppm dan 6,25 ppm), kemudian dilakukan uji inhibisi. Penelitian ini menggunkan akarbose sebagai kontrol positif. Hasil uji fitokimia menunjukkan bahwa infusa daun benalu kersen mengandung flavonoid, tanin, terpenoid, dan alkaloid. Infusa daun benalu kersen mampu menghambat enzim α-glukosidase dengan nilai IC50 sebesar 81,27 ppm. Infusa daun benalu kersen memiliki potensi sebagai antidiabetes karena memiliki efek inhibisi terhadap enzim α-glukosidase dengan tingkat kekuatan aktif.
Pengaruh H2SO4 terhadap kadar lignin dan glukosa pada pembuatan bioetanol menggunakan metode simultaneous saccharification fermentation
Authors: Jannah Asyeni Miftahul , Pratiwi Nuraini D , Lahanda Titi
Published: July 2022

Bioetanol dapat dijadikan pengganti bahan bakar bensin dan terbuat dari berbagai jenis tanaman dan limbah yang mengandung selulosa. Salah satu limbah yang masih belum termanfaatkan secara maksimal adalah sabut kelapa. Penelitian ini bertujuan untuk menganalisa pengaruh variasi konsentrasi H2SO4 (5; 7; 10; 13 dan 15%) terhadap kadar lignin yang didegradasi pada proses delignifikasi serta pengaruh variasi enzim (2,5; 5; 7,5 dan 10 mL) yang digunakan terhadap kadar bioetanol yang dihasilkan pada proses Simultanous Saccarification and Fermentation (SSF). Analisa kadar lignin dan selulosa pada proses delignifikasi menggunakan metode Chesson-Datta.  Kadar selulosa optimal didapatkan sebesar 54,25% serta kadar lignin sisa sebanyak 18,78% yang dihasilkan oleh sampel dengan melibatkan 13% H2SO4 pada proses delignifikasi. Pada proses SSF melibatkan variasi enzim selulase dan Saccharomyces cerevisiae serta proses fermentasi dilakukan selama 7 hari. Analisa kadar bioetanol hasil dari proses SSF menggunakan metode densitas. Dari hasil penelitian didapatkan kadar bioetanol maksimum yang dihasilkan sebesar 42,63% pada sampel dengan perlakuan 10 mL enzim selulosa.
THE INFLUENCE OF LEADERSHIP STYLES ON EMPLOYEE PERFORMANCE IN HIGHER EDUCATION- A CASE STUDY FROM THE UNIVERSITY OF SOMALIA (UNISO)
Authors: Ali Araye Addow
Published: July 2022

The purpose of this study was to investigate the influence of leadership styles on employee performance at the University of Somalia. To reach this purpose the researcher used specific objectives of the study which were to establish the effect of transformational leadership on employee performance at the University of Somalia (UNISO). To determine the effect of transactional leadership on employee performance at the University of Somalia (UNISO). To examine the effect of laissez-faire leadership style on employee performance at the University of Somalia (UNISO). This research used a strictly quantitative approach. The employees of the University of Somalia (UNISO) were the intended target population. 326 people made up the study’s sample. The questionnaire was distributed to the sampled respondents via online Google forms that were provided to them to complete. Data were analyzed using the statistical package for social sciences (SPSS) version 20. The study’s assumptions were used to evaluate both relationships and effects using Pearson’s correlation and multiple regression analysis. Cronbach’s alpha coefficient was used to conduct reliability tests. The instrument’s Cronbach’s Alpha coefficient was. .823 indicating that it was reliable in gathering data for this investigation. The major result correlation coefficients of this study for transactional r=.854, transformational r=.826, and laissez-faire r=.594. These results show that both transactional and transformational leadership styles are strongly correlated with employee performance. While the laissez-faire leadership style is relatively strong with employee performance. Therefore, I would recommend that the management of the University of Somalia use a Transactional leadership style followed by a Transformational leadership style. considering also Laissez-faire Leadership.
KEYWORDS: transformational leadership, transactional leadership, laissez-faire leadership style, employee performance
Agenor i Strabon, Papageno i Sarastro: Lwowskie meandry operowej biografii Wojciecha Bogusławskiego
Authors: Chachulski Jakub
Published: July 2022

Artykuł nawiązuje do ustaleń Zbigniewa Raszewskiego na temat aktorskiego udziału Wojciecha Bogusławskiego w lwowskich wystawieniach opery Amazonki, pierwszego wspólnego dzieła Bogusławskiego – jako librecisty – i Józefa Elsnera. Na podstawie niepełnych informacji z Dzieł dramatycznych librecisty Raszewski stwierdził, że Bogusławski występował w roli greckiego króla Agenora. Analiza muzycznego i literackiego współczynnika opery, zasadniczo potwierdzając to ustalenie, pozwala domyślać się istotnych fluktuacji w kształtowaniu się autorskich intencji obsadowych. Celem artykułu jest identyfikacja „osobistych” śladów Bogusławskiego obecnych zarówno w roli Agenora, jak i Strabona; postawione zostają także hipotezy dotyczące momentu i przyczyn zmiany koncepcji obsadowej. Artykuł rozwija badania nad biografią twórczą Bogusławskiego jako autora, aktora i śpiewaka, wykorzystując krytykę tekstu (źródła muzyczne i literackie), analizę obsady w świetle odpowiednich konwencji operowych, muzykologiczne i literaturoznawcze narzędzia analityczne i interpretacyjne, a także komparatystykę – by połączyć fragmenty opery z Czarodziejskim fletem Mozarta. Istotnym założeniem metodologicznym jest wykorzystanie zaniedbywanej dotąd możliwości odwołania się do narzędzi muzykologicznych w badaniach twórczości i biografii twórczej Bogusławskiego jako człowieka opery.
PENGARUH KEPUASAN KERJA PETUGAS TERHADAP EFEKTIFITAS MASA PENGENALAN PENGAMATAN DAN PENELITIAN LINGKUNGAN NARAPIDANA
Authors: Putra Mochamad Iqbal Austiandoro , Wibowo Padmono , Praningtyas Azzahra Dinda
Published: July 2022

Disrupsi dalam sistem pemasyarakan hanya bisa dilakukan bila ada solusi dalam permasalahan yang ada, khususnya pada saat masa pengenalan pengamatan dan penelitian lingkungan atau yang disebut Mapenaling Narapidana, petugas yang belum memahami mekanisme khusus mengenai penilaian dan juga indikator yang mempengaruhi mapenaling menjadi masalah serius yang membuat mapenaling kurang efektif, salah satu indikator yang penulis soroti yakni pengaruh mengenai kepuasan kerja dari petugas terhadap efektifitas mapenaling, metode penelitian menggunakan metode kuantitatif, yang dilakukan di Lapas Kelas IIB Sukabumi, populasi petugas sebanyak 71 petugas dan untuk sampel mengambil sebanyak 60 petugas, data diambil berdasarkan penilaian kuesioner yang disebar selama dua hari dan diawasi langsung oleh penulis, kuesioner sebelumnya sudah dilakukan uji validitas dan reabilitas, kemudian item diperbaiki dengan menggunakan alat bantu microsoft Excel dan SPSS, kemudian data diolah dan dianalisis dengan regresi linear untuk mencari adanya pengaruh, hasil kemudian dianalisis sehingga menghasilkan kesimpulan bahwa terdapat pengaruh antara kepuasan kerja terhadap efektifitas mapenaling dengan nilai signifikansi sebesar 0,001 lemudian terdapat pengaruh sebesar 17,6% terhadap efektifitas mapenaling di Lapas Kelas IIB Sukabumi.Dengan harapan dapat diketahui pengaruh dari kepuasan kerja petugas ini dapat membuat mapenaling lebih efektif.
PERAN PENDISTRIBUSIAN ZAKAT PRODUKTIF DALAM UPAYA PEMBERDAYAAN EKONOMI MUSTAHIK DI BAZNAS PROVINSI SUMATERA UTARA
Authors: Sardini Syafira , Imsar Imsar
Published: July 2022

Badan Amil Zakat Nasional (BAZNAS) adalah lembaga yang dibentuk oleh pemerintah untuk mengelola zakat dan bertanggung jawab atas pengumpulan, pendistribusian, dan pendayagunaan zakat. Pendistribusian zakat secara produktif bertujuan untuk meningkatkan ekonomi bagi mustahik. Berkembangnya zakat produktif diperoleh melalui upaya pemberdayaan ekonomi mustahik dan menjadikannya sebagai aset bisnis yang memungkinkan bagi orang miskin untuk hidup dan dapat memenuhi kebutuhannya secara teratur. Penelitian ini dilakukan bertujuan untuk mengetahui bagaimana pendistribusian zakat produktif yang dilakukan BAZNAS Sumatera Utara serta perannya dalam upaya pemberdayaan ekonomi mustahik. Penelitian ini menggunakan metode penelitian deskriptif kualitatif. Pemerolehan datanya diperoleh melalui data sekunder. Hasil penelitian menjelaskan bahwa dalam pendistribusian zakat produktif dilakukan menggunakan akad hibah dan qardhul hasan. Kondisi ekonomi mustahik setelah mendapatkan zakat produktif, hampir semuanya membaik bahkan ada yang mengalami kemajuan yakni beberapa orang sudah ada yang berganti statusnya dari mustahik menjadi seorang muzakki. Selebihnya kebanyakan dari status mustahik hanya baru dapat berganti dari mustahik menjadi orang yang dapat mencukupi keperluannya sendiri (muktafi) serta orang yang berinfak (munfiq). Pendistribusian zakat produktif di BAZNAS Sumatera Utara dikatakan dapat mempengaruhi perkembangan mustahik. Maka dari itu, peran pendistribusian zakat produktif dalam upaya pemberdayaan ekonomi mustahik di BAZNAS Sumatera Utara sudah cukup meningkatkan usaha serta perekonomian mustahik.
PENGARUH PENDAPATAN TERHADAP POLA PENGELUARAN KONSUMSI RUMAH TANGGA DI KOTA MEDAN TAHUN 2015 (IMPLIKASI FUNGSI KONSUMSI KEYNES)
Authors: Atmaja Adithya Rahman , RS Prawidya Hariani , Lubis Irsyad
Published: July 2022

Tujuan utama dari penelitian ini adalah untuk memperkirakan bagaimana variabel pendapatan dapat mempengaruhi pola pengeluaran konsumsi rumah tangga di Kota Medan pada tahun 2021. Data yang digunakan adalah data cross sectional (data menurut waktu) yang dikumpulkan dari 100 rumah tangga di seluruh Kota Medan. Sedangkan variabel yang akan diestimasi adalah pola konsumsi rumah tangga. Berdasarkan hasil estimasi dengan menggunakan metode regresi berganda menggunakan software SPSS 18, ukuran goodness of fit (R2) adalah 82,1%, variabel bebasnya adalah pola konsumsi rumah tangga (KRT) dan signifikan terhadap pendapatan rumah tangga (PRT). Sedangkan secara parsial konsumsi rumah tangga berpengaruh positif dan signifikan terhadap pendapatan rumah tangga di Kota Medan.
PENGARUH KOMUNIKASI, LINGKUNGAN KERJA DAN SEMANGAT KERJA TERHADAP KINERJA APARATUR SIPIL NEGARA (ASN) DI UNIT PELAKSANA TEKNIS SUMBER DAYA AIR (UPT SDA) WILAYAH PRAJEKAN BONDOWOSO
Authors: Pramesthi Riska Ayu , Hardjono Hardjono , Audi Syafira
Published: July 2022

Penelitian ini digunakan i(1) iuntuk imelihat ipengaruh ikomunikasi, ilingkungan kerja idan isemangat ikerja isecara iparsial iterhadap ikinerja iaparatur isipil negara i(2) iuntuk imelihat ipengaruh ikomunikasi, ilingkungan ikerja idan semangat ikerja isecara isimultan iberpengaruh iterhadap ikinerja iaparatur isipil negara i(3) iuntuk imenentukan idiantara ikomunikasi, ilingkungan ikerja idan semangat ikerja iyang ipaling idominan iberpengaruh iterhadap ikinerja iaparatur sipil inegara. iMetode iyang idigunakan idalam ipenelitian iini iadalah imetode kuantitatif. iHasil idari ipenelitian iini iadalah ipersamaan ilinier iberganda iY i= -1,811 i+ i0,318 i(X1) i+ i0,294 i(X2) i+ i0,314 i(X3) i+ ie. iVariabel ikomunikasi i(2.414), ilingkungan ikerja i(2.076), idan semangat kerja (2.296) iberpengaruh secara iparsial iterhadap ikinerja ipegawai inegeri isipil idengan inilai it itabel sebesar i2.022. iSecara isimultan ikomunikasi, ilingkungan ikerja idan semangat kerja iberpengaruh iterhadap ikinerja iaparatur isipil inegara idengan inilai 8,315> 3,24. iVariabel iyang ipaling idominan idalam ipenelitian iini iadalah ivariabel komunikasi idengan inilai 2.414 dengan koefisien ideterminasi i0,390 iatau 39,0%. Hasil ini mengindikasikan bahwa jika komunikasi meningkat maka kinerja Aparatur Sipil Negara di UPT SDA Wilayah Prajekan akan meningkat, dan sebaliknya jika komunikasi menurun maka kinerja Aparatur Sipil Negara di UPT SDA Wilayah Prajekan akan menurun.
PEMBERDAYAAN PEMERINTAH DALAM UPAYA PENCEGAHAN PEREDARAN NARKOBA PADA MASYARAKAT DESA KLAMBIR LIMA KEBUN KECAMATAN HAMPARAN PERAK KABUPATEN DELI SERDANG
Authors: Lubis M. Arif Sahlefi , Ismaidar Ismaidar , Lubis Sakban
Published: July 2022

Maraknya narkotika dan obat-obatan terlarang telah banyak mempengaruhi mental dan sekaligus pendidikan bagi para pelajar saat ini. Masa depan bangsa yang besar ini bergantung sepenuhnya pada upaya pembebasan kaum muda dari bahaya narkoba. Narkotika yang disalahgunakan oleh setiap individu dapat membawa efek-efek negatif terhadap tubuh pemakai itu sendiri baik fisik, psikis, maupun sosial. Karakteristik psikologis yang khas pada remaja merupakan faktor yang memudahkan terjadinya tindakan penyalahgunaan zat. Namun demikian, untuk terjadinya hal tersebut diduga karena ada faktor keluarga dan faktor lingkungan sosial, yang memberikan pengaruh pada remaja serta yang memainkan peran penting, yaitu faktor lingkungan si pemakai narkoba. Faktor lingkungan tersebut memberikan pengaruh pada remaja dan mencetuskan timbulnya motivasi untuk menyalahgunakan narkoba. Penelitian ini bertujuan untuk mendeskripsikan pemberdayaan pemerintah dalam upaya pencegahan peredaran narkoba pada masyarakat Desa Klambir Lima Kebun Kecamatan Hamparan Perak Deli Serdang. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi deskriptif. Hasil penelitian ini menunjukkan bahwa upaya yang dilaksanakan bukan saja tanggung jawab masyarakat, melainkan harus ikut andil pemerintah dan berupaya keras untuk mencegah peredaran narkoba yang telah banyak meresahkan masyarakat, meliputi upaya preventif, refresif, promotif, kuratif, dan rehabilitatif.
PENERAPAN TEMA ARSITEKTUR EKOLOGI DALAM RANCANGAN PUSAT KONSERVASI MACAN TUTUL JAWA DI BANYUWANGI
Authors: Febriyani Fitri Sri Maudina , Atika Firdha Ayu , Poedjioetami Esty
Published: July 2022

Macan Tutul Jawa merupakan satwa khas Pulau Jawa yang saat ini populasinya semakin menurun. Hal tersebut disebabkan oleh perburuan liar yang sampai saat ini tidak terkendali, serta semakin berkurangnya habitat asli mereka. Apabila tidak segera dilakukan sebuah tindakan kepunahan Macan Tutul Jawa, dapat berdampak buruk bagi ekosistem alam. Tindakan yang dapat dilakukan untuk mempertahankan populasi mereka adalah dengan kegiatan konservasi. Konservasi merupakan wadah yang dapat digunakan untuk melindungi, menjaga, serta mengembangbiakan satwa yang populasinya semakin berkurang. Oleh karena itu penelitian ini bertujuan untuk menjaga serta mengembangbiakan Macan Tutul Jawa agar terhindar dari kepunahan yang menggunakan penerapan tema Arsitektur Ekologi. Metode penelitian yang digunakan adalah penelitian kualitatif. Teknik pengumpulan data menggunakan teknik observasi, teknik dokumen, dan teknik wawancara. Penerapan konsep makro pada perancangan ini bertajuk Nature. Nature berarti sebagai alam adalah basis dari desain rancangan. Mikro konsep tatanan lahan terarah Tatanan lahan memiliki mikro konsep terarah, yang bertujuan untuk mengerahkan antara zona publik dan zona private.  Mikro konsep pada bentuk menggunakan konsep adaptif. Arsitektur ekologi sangat adaptif terhadap arsitektur tradisional, oleh sebab itu bentuk bangunan akan mencerminkan bentuk arsitektur tradisional khas Banyuwangi. Sedangkan mikro konsep ruangan menggunakan konsep open space. Konsep pada setiap ruangnya didesain dengan menggunakan banyak bukaan sehingga sirkulasi pada setiap ruangnya dapat berjalan dengan baik.
Semiosis Process and Meaning-Making on Bron’s Menu
Authors: Pratama Agus Darma Yoga
Published: July 2022

This research aimed to know the semiosis process and meaning-making about how words and pictures on the menu can contribute to better business and achieving customer satisfaction by applying the theories from Pierce (1996) and Ogilvy (1985). Data were taken from BRON – The Urban café's menu, especially in snack and oriental categories. The data were collected by reading the menu list, observing the picture of the menu list, and checking the appropriateness between pictures and words. The collected data were then analyzed using Pierce and Ogilvy's theories. The analysis showed that representamen, object, and interpretant are interrelated in the semiosis process to present the uniqueness and authenticity of BRON – The Urban Café’s menus such as garlic cassava, vegetarian spring rolls, crispy banana spring rolls, French fries, and nasi goreng nusantara. The meaning-making with words and pictures in the list menus is mostly accurate and implicit, but it is still known and acceptable due to the customer’s familiarity with the cooking techniques, ingredients, and serving of the food also the effect of brand image, the relevance of preexisting knowledge, big idea, and others.
Operationalising the UN Guiding Principles on Business and Human Rights through Human Rights Due Diligence: A Critical Assessment of Current States Practices
Authors: Li Zhuolun
Published: July 2022

The past one decade had witnessed how the UN Guiding Principles on Business and Human Rights (UNGPs) shaped the global standard for responsible business, while it had also indicated the ineffectiveness of implementation. At present, the potential of human rights due diligence to operationalise the UNGPs tends to be recognised by both state and non-state actors. States around the globe are undertaking various approaches to institutionalise human rights due diligence to fulfil their duty to protect under international human rights law. Against this backdrop, the paper aims to explore current practices of human rights due diligence institutionalisations and provides a holistic assessment of different models adopted by state actors. The research result argues that among the three major models, i.e., NAPs Model, mHRDD Model and BHR Treaty-based Model, the NAPs Model is a more optimal solution to operationalize the UNGPs. This judgment bases on not only the innate merits of the NAPs Model but also on its potential to avoid adverse impacts resulting from unilateral legislation and to foster consensus for a business and human rights treaty.

 

Received: 5 March 2022 / Accepted: 7 May 2022 / Published: 5 July 2022
The Policies, the Cognitive Skills and Emotional Standards Necessary to Teach Critical Thinking among Secondary Stage Students in the Kingdom of Saudi Arabia
Authors: Alnaji Abdulssalam Omer
Published: July 2022

The research aimed to determine the ideal policies and the skills, cognitive, and emotional standards necessary to teach critical thinking among secondary school students in Saudi Arabia through the school curricula. The researcher used the descriptive technique to create a list of policies, cognitive skills, and emotional standards needed to teach critical thinking among secondary students in Saudi Arabia. The standards were then transferred to an electronic questionnaire using Likert's scale and validated using Alpha Cronbach and Spearman-Brown, and included four domains including policies (22 policies), skills standards (40 standards), cognitive standards (15 standards), and emotional standards (14 standards). In light of the intentional sample responses, which amounted to (39) specialists to the questionnaire, it was found that the number of policies that obtained approval (two policies strongly agreed, and "11" policies agreed) was (13) policies with an average of 59%, and the number of unapproved policies was one. Only by an average of 5%, and the rest of the policies are neutral with an average of 36%, and it was also found that the general average of the degree of approval of the sample members on the criteria for teaching critical thinking was highly agreeable according to the following order: Emotional criteria (4.58), cognitive criteria (4.55), and skill criteria (4.53). These are high percentages indicative of the appropriateness of standards for teaching critical thinking among secondary school students in Saudi Arabia. The research recommended that the Ministry of Education and the relevant authorities adopt policies for teaching critical thinking in the secondary stage, which was approved by: strongly agreed, and the development of essential thinking education content in the secondary stage. According to the research findings on skills, cognitive, and emotional standards, and evaluating the extent of commitment to teaching critical thinking in the secondary stage in the light of the policies and standards of teaching that the research reached.

 

Received: 20 March 2022 / Accepted: 23 June 2022 / Published: 5 July 2022
Estrutura Populacional de Espécies do Gênero Cichla (Osteichthyes: Cichliformes) Introduzidas em Diferentes Regiões Brasileiras – uma Revisão Bibliográfica
Authors: Cabrera Monteiro Lucas
Published: July 2022

Os sistemas de água doce neotropicais são importantes abrigos da biodiversidade global de peixes. Os tucunarés (Cichla spp) são peixes endêmicos dessa região biogeográfica, ocorrendo naturalmente no Brasil e outros países da América do Sul como Venezuela, Colômbia, Bolívia, Peru, Guiana Francesa, Guiana e Suriname. O interesse econômico pelo mercado de peixes ornamentais, da pesca esportiva, aquicultura e, sobretudo, a criação em reservatórios, culminaram na ampla introdução dos tucunarés nas demais bacias hidrográficas brasileiras e do mundo. O presente artigo teve como objetivo realizar uma revisão bibliográfica sobre a estrutura populacional de diferentes espécies do gênero Cichla introduzidas em ecossistemas não nativos no Brasil. A estrutura populacional foi caracterizada pela proporção sexual, comprimento e peso dos indivíduos. Fatores como as características reprodutivas e alimentares que contribuem para o estabelecimento das populações também foram comentados, bem como os possíveis impactos da introdução do tucunaré à ictiofauna nativa. Apesar da dificuldade de comparação direta dos dados obtidos em cada artigo, as populações de tucunaré demonstraram estar bem estabelecidas em reservatórios, tanto em sua amplitude de ocorrência natural quanto no semiárido nordestino e nas regiões Sudeste e Centro- Oeste do Brasil. A maioria dos estudos identificados em nossa busca foi realizada em reservatórios, reforçando a importância das pesquisas sobre o tucunaré nesses ambientes. No entanto, houve poucos estudos focados na avaliação da estrutura das populações de tucunarés em si. Considerando que estas espécies apresentam elevado potencial de causar impactos negativos à biodiversidade nativa, o monitoramento populacional contínuo é importante para identificar e mitigar os possíveis impactos.
Geografía de la piel
Authors: Mejía González Carolina
Published: July 2022

El texto cuenta algunas ocurrencias significativas, impresas en las maletas viajeras: variedad de paisajes, abolladuras, lugares desconocidos. Se trata de un relato sobre los gestos estéticos que recoge, carga y trae el que viaja, al hilo de las cuatro geografías de la “Geopoética” de José Luis Pardo: escritura de la tierra, inscripción en la tierra, escritura sobre la tierra y descripción de la tierra, tramadas con la piel como lugar del sentido común, concepto construido desde Michel Serres. Estas ocurrencias constituyen la vida del que viaja, del que tiene que ocuparse o pre-ocuparse de alguna maleta, cargando su equipaje. Ocurrencias que, impresas, configuran las páginas o imágenes ocultas y que al leerlas traerán recuerdos y presentimientos afectivos — materias sensibles del ser emotivo que somos—, cuando hemos viajado y llegado a casa.
Perancangan sistem monitoring peralatan dan pemetaan kantor pos cabang Bogor menggunakan metode rapid application development
Authors: Adam Firdaus  , Nurkholis Nurkholis , Umar Tsani Abdurrahman  , Iskandar Iskandar
Published: July 2022

Keberadaan kantor pos sekarang ini masih dibutuhkan oleh masyarakat dalam pengiriman surat dan paket lainya dengan biaya relatif terjangkau, selain itu banyak pula kompetitor jasa pengiriman barang atau paket lainya, dengan banyaknya kompetitor tersebut maka menuntut pengelolaan cabang kantor pos harus bisa memuaskan pelayanan kepada masyarakat diantaranya berupa informasi jenis pelayanan yang ada dan letak posisi kantor pos terdekat. Masalah sering terjadi terkait informasi jenis fasilitas pelayanan yang ada pada lokasi kantor pos terdekat. Kondisi sekarang ini belum adanya informasi terkait jenis layanan, sehingga akan menyulitkan masyarakat yang akan berkunjung ke kantor pos tersebut, sehingga dampaknya akan mengurangi jumlah kunjungan pada kantor pos tersebut. Tujuan penelitian ini untuk merancang pemetaan lokasi kantor pos terdekat berbasis Sistem Informasi Geografis (SIG), dan peralatan dan jenis-jenis informasi pelayanan kepada masyarakat yang diakses secara daring sebelum mereka datang pada suatu kantor cabang pos terdekat. Metode untuk pengembangan aplikasi ini dengan metode Rapid Application Development (RAD), setelah dilakukan Implementasi dan pengujian penelitian ini menghasilkan sistem informasi permintaan dan pemetaan kantor pos berbasis GIS yang bermanfaat untuk masyarakat dalam mencari informasi terkait layanan kantor pos.
IoT-Based Sensor Shoes System for Gait Correction
Authors: Sang Young Lee Sang Young
Published: July 2022

Since the 2000s, diseases that tend to occur in high-age groups such as degenerative arthritis and intervertebral disk has been gradually increasing in low-age groups due to incorrect gait or bad habits. One of the fundamental problems with these results can be found in an indifference to gait. This study aimed at determining the walking styles through pressure sensor. It uses a three-axis accelerometer and a gyro sensor to identify pigeon-toed walking and splay-footed walking. The system can monitor gait using the sensor data stored in the PC and smartphone applications transferred via Bluetooth. This can be visually confirmed through color changes in accordance with the sensor value with the neo-pixels. Research developments can analyze the type of gait as compared to the value for the case of incorrect gait based on normal pace with the acceleration value through the sensor. Through the experiment, the recognition rate capable of distinguishing in toeing gait was 56.25%, and out toeing gait was 81.25%. The system of this paper continuously collects gait data to enable monitoring whenever and wherever users want. It is easy to check when and where users walked with a normal gait or abnormal gait, and it is expected to help users manage their gait. This system may be approached as a precautionary measure by notifying other parts of the body that there is an abnormality in asymmetric walking (walking with differences in speed, angle, and stride of both feet) or when dragging feet.
Block chain Technology to Handle Security and Privacy for IoT Systems: Analytical Review
Authors: Zhonghua Chen , Goyal S. B.
Published: July 2022

With a large number of mobile terminals accessing IoT for information exchange and communication, security issues such as identity authentication, data transmission, and device failure are becoming more and more serious. Most of the traditional security technologies are based on centralized systems, and due to the limitation of IoT topology, traditional security technologies can only be applied to specific industries. Blockchain technology has the features of decentralization, data encryption, and tamper-proof, which are especially suitable for application in complex heterogeneous networks. This paper discusses for the first time the use of the block chain in many fields, providing an opportunity to address IoT security issues. Second, it discussed the IoT acceptance on various domains and the privacy issues IoT faces on limited resources. Finally, this paper investigates many of the problems facing the integrated process of block chain-based and IoT-based applications. The purpose of this article is to provide an overview of block chain based policies for privacy protection in IoT. After analyzing related solutions, blockchain technology can work better in the area of IoT security and privacy protection
Application of Chaotic Increasing Linear Inertia Weight and Diversity Improved Particle Swarm Optimization to Predict Accurate Software Cost Estimation
Authors: Venkataiah V , Nagaratna M , Mohanty Ramakanta
Published: July 2022

Nowadays usage of software products is increases exponential in different areas in society, accordingly, the development of software products as well increases by the software organizations, but they are unable to focus to predict effective techniques for planning resources, reliable design, and estimation of time, budget, and high quality at the preliminary phase of the development of the product lifecycle. Consequently, it delivered improper software products. Hence, a customer loses the money, time, and not belief on the company as well as effort of teamwork will be lost. We need an efficient and effective accurate effort estimation procedure. In the past, several authors have introduced different methods for effort of estimation of the software. Particle Swarm Optimization is a most popular optimization technique. Maintaining diversity in particle swarm optimization is the main challenging one and in this paper, we propose chaotic linear increasing inertia weight and diversity improved mechanism to enhance the diversity. Seven standard data sets were employed to analyze of performance of the proposed technique, and it is outperformed compared to the previous techniques.
PMSG Wind Turbine Based Current Fed Three Phase Inverter with Model Predictive Control
Authors: A Vijayaprabhu. , M Kumaresan.
Published: July 2022

Design of an improved Permanent Magnet Synchronous Generator (PMSG) wind turbine power based Current Fed Inverter (CFI) using Model Predictive Controller (MPC) is proposed in this paper. Optimum torque control is proposed in wind energy conversion system, MPC is used to adjust the dynamic response time based on the application need. This model deals with torque control strategy of PMSG in the machine side controller. Impact of normal mode of operation by the copper losses and torque ripples are minimized by maximizing the average torque. Synthetization of adequate stator phase current are obtained naturally. Uncertainty of the steady state errors of the plant and parameter error are rectified in the system model. The designed CFI with MPC was implemented using medium range wind turbine in MATLAB /Simulink. The simulation output shows the better efficiency in over modulation region by the proposed CFI with controller. Constant switching frequency is maintained and efficient required dynamic response (DR) value is attained.
Multiport Converter for CubeSat
Authors: M Muhaidheen , S Muralidharan , N Vanaja
Published: July 2022

Maximizing solar energy harvesting and miniaturizing DC-to-DC converters will be a difficult task for the CubeSat that operates in low earth orbit (LEO), where size and weight are limited. To maximize solar energy collection, the electrical power system (EPS) architectures use numerous separate DC–DC converters, which will be problem for miniaturization of whole model because several inductors will be used in each converter. The key purpose of this article is to demonstrate a topology of multiport converter that requires only one inductor and a small number of components, reducing the overall system size. The proposed system will have half-bridge modules with series connection, connected parallelly with PV panels will power the battery system through a DC-DC boost converter. On considering the 1U CubeSat standards a prototype is used to verify the performance of the proposed converter in numerous case scenarios.
Performance Analysis of Fault Tolerant Operation of PMSM using Direct Torque Control and Fuzzy Logic Control
Authors: Kulkarni Sandhya , Thosar Archana
Published: July 2022

Electromagnets have traditionally been used in all drives. Because they take up space, the size of the machine grows in tandem with increased torque and it’s rating thereby lowering its energy efficiency. If the rotor winding is replaced with permanent magnets, the motor will reverse. The recent improvement of magnetic materials resulted in a reduction in motor size and more effective use of redial space. Permanent Magnet Synchronous Motors (PMSM) have a high-power factor, are extremely durable, and require almost no maintenance. Such motors can be designed with power ranging from a few watts to a few kilowatts for applications ranging from fans to alternators including electric vehicles. This need reliable and safe operation of drives which would be fault tolerant. The study compares fault tolerant controllers using Direct Torque Control (DTC), and Fuzzy Logic Control (FLC) of PMSM for stator fault. Simulations are performed for different voltages and loads under fault. DTC selects voltage vectors using a hysteresis controller which gives better speed regulation but increases torque ripple requiring an accurate mathematical model. The use of FLC gives similar performance by precise voltage vector selection without needing an accurate mathematical model but has lower speed regulation. The results of DTC and FLC are show that even with failure of stator winding the motor can function satisfactorily
Methods for Measuring EMC in Telecommunications Systems
Authors: Jamanshalov Muratbek , Kunelbayev Murat , Mansurova Madina , Amirkhanova Gulshat , Tyulepberdinova Gulnur , , Alimova Madina , Tergeussizova Aliya
Published: July 2022

In this article, we will consider methods for measuring the electromagnetic compatibility of telecommunication systems and study the norms of compliance with EN 55022 standards. The test equipment is RF (Microwave radio) transceiver equipment. 1.4 GHz. QAM modulation (372 MHz) was enabled in real power mode, and several experiments were also conducted. Experiments show that the parasitic radiation through the image channel at an intermediate frequency in a superheterodyne receiver is 465. At a frequency of 371.94 MHz, deviations at the quasi-peak level are set to 51 dB mv/m.
Optimization of Encoding Design Based on the Spatial Geometry Remarkable Properties
Authors: Riznyk Volodymyr
Published: July 2022

This paper involves techniques for optimization of encoding design based on the remarkable geometric property of ring symmetry which contains two complementary asymmetries as the World harmony law for improving the quality indices of one- and multidimensional cyclic codes with respect to performance reliability, transmission speed, and transmission content, using vector data coding. These design techniques make it possible to configure encoding system with minimized number of digit weights, while maintaining or improving on error protection, security, and function of autocorrelation. Such sets are t-dimensional vectors, each of them together with all their modular sums enumerate the set node points grid of the coordinate system with the corresponding sizes and dimensionality. Systemic researches based on remarkable geometric properties of multi-modular mathematical structures such as “Glory to Ukraine Star” (GUS) combinatorial configurations demonstrated.
Local Anesthetic Therapy in a Patient with Primary Headache and Lipid Keratopathy
Authors: Nassar Tobón Andrea Catalina , Pérez Benjumea Paola Andrea , Vinyes David
Published: July 2022

A headache is characterized as a craniofacial pain that may derive from any involvement of the structure of the head, neck or cranial cavity. It may be associated with any pathology, negatively affecting the quality of life of the individuals afflicted by it. We present the case of a woman with bilateral lipid keratopathy associated with a headache of a moderate to severe intensity, refractory to treatment with non-steroidal anti-inflammatory drugs, treated with lidocaine 1% injections in supraorbital and infraorbital nerves. A clear improvement was observed in visual symptoms and headache with a decrease in symptom frequency, duration and intensity. The improvement lasted over 6 months, which positively impacted the patient’s quality of life. The treatment was well tolerated and no adverse effects were observed. In this case, local injections of lidocaine showed a favorable outcome. Well-designed studies should be conducted to elucidate the role of LA for this condition.
ANALISIS RASIO PROFITABILITAS, LIKUIDITAS DAN SOLVABILITAS TERHADAP FINANCIAL DISTREES PADA PT JAYA KONTRUKSI MANGGALA PRATAMA TBK
Authors:   SEKOLAH TINGGI ILMU EKONOMI (STIE) BIMA, Fadilah Ainun , Rimawan M
Published: July 2022

The investors who invest will be aware of and ensure the condition of the company whether it is experiencing financial distreesor the company is in good condition. Therefore, it is necessary to conduct a financial analysis of the company by looking at its financial ratios. This study aims toexamine theindependent variables in the form of ProfitabilityRatios, Liquidity Ratios and Solvency Ratios to Financial Distrees as the dependent variable. This research was conducted on the construction companies listed on the Indonesia Stock Exchange in 2011-2020 with a population of 20 years. The sampling technique in this study used purposive sampling which resulted in a sample of 10 years. The analytical method used in this study is the classical assumption test, multiple linear regression analysis and hypothesis testing used SPSS V.21. The results showed that partially the Profitability Ratio variable had a significant effect on financial distrees, Liquidity and Solvency Ratio variables had no significant effect on financial distrees. Simultaneously, Profitability Ratio, Liquidity Ratio and Solvency Ratio have asignificant effect on financial distrees distrees
ANALISA PEREDAM INFLASI DI MUARA DATA MELALUI MAPING AREA PADA JUMLAH UANG BEREDAR
Authors:   Universitas Bina Sarana Informatika. Indonesia, Sabariah Etika
Published: July 2022

Inflation is part rutinitas jobs government. Inflation create high cost economic. To problem solving infect inflation is subsidi to not capable the people. But the way this is sometime arise new DWL factor. Goals risetis create development knowledgement teori audit social have character preventif not evaluation that focus to the amount money distributed. Place riset from informatin at internet about regulation government. Data collected passing observation information accident, and literatur review. Limits riset to facor inflation only relevancy timing and famine. Tools that use is basicly teority that testing implementation on the case in the room deduktif. Instrument riset is PBB, kinds jobs, BPJS healty, inflation regional, and probability behavior produsen and consumen that material to create maping area as operational variable the testing validitas and reabilitas passing logika reasoning that implementation tekhnik audit social from tracking the amount money distributed to maping area that, passing is create scenario audit social to pocket data, analytical audit social with maping area relevancy: 1) identification fluktiatif inventory and price, 2) flow subsidi, 3) correlation BPJS healty with administration asset, as well as recapitulation analytical audit social to estuary pocket data and analytical audit social to inefisiensi market accident because the poor resources
DETERMINAN MINAT WIRAUSAHA PADA MAHASISWA
Authors:   Universitas Gunadarma, Nusaibatul Adawiyah Nida , Suryani Mufid ,   Universitas Gunadarma, Septiani Risa ,   Universitas Gunadarma
Published: July 2022

Global economic growth after the current pandemic is still quite good. Handling after the pandemic has seen a significant impact on Indonesia's economic recovery by strengthening the focus on job creation. One of the factors that influence the economic growth of a country is entrepreneurship. Entrepreneurship can create jobs through individuals who are involved in entrepreneurial activities, form new jobs by exploring high growth potential supported by technology. The purpose of this study is to analyze the factors that influence entrepreneurial interest in Gunadarma University students. The research method used is descriptive analysis using multiple linear regression with SPSS application. The results of this study indicate that partially self-efficacy, motivation and entrepreneurial education variables have a positive effect on entrepreneurial interest. Based on the results of the simultaneous test, the variables of self-efficacy, motivation and entrepreneurship education together have a significant effect on entrepreneurial interest.
FAKTOR-FAKTOR YANG MEMPENGARUHI KINERJA KEUANGAN PERUSAHAAN YANG TERDAFTAR DALAM INDEKS IDX QUALITY30
Authors:   Universitas Prima Indonesia, Lismart Benget. P Jhon , Novianti Sitanggang Tina ,   Universitas Prima Indonesia, Mentalita Hotma ,   Universitas Prima Indonesia
Published: July 2022

The purpose of this study is to examine the effect of inflation, company size, debt to equity ratio and total asset turnover on the financial performance. The population of this study is the IDX Quality30Indexwhich were listed on the Indonesia Stock Exchange in 2018-2021. The results of this study indicate that simultaneously inflation, company size, debt to equity ratio and total asset turnoveraffect the financial performance. Partially, this study show total asset turnover has a positive and significant effect on the financial performance. Company size and debt to equity ratio has a negative and significant effect on the financial performancewhile inflationhas no significant effect on the financial performance.
An improved C-P cross-coupling route for the synthesis of novel V-shaped aryldiphosphonic acids
Authors: Shearan Stephen J I , Andreoli Enrico , Taddei Marco
Published: July 2022

The synthesis of phosphonate esters is a topic of interest for various fields, including the preparation of phosphonic acids to be employed as organic linkers for the construction of metal phosphonate materials. Various methods have been reported to obtain phosphonate esters in the literature. Discussed here is the transition metal-catalysed cross-coupling reaction, often referred to as the Tavs reaction, which employs NiCl2 as a pre-catalyst in the phosphonylation of aryl bromide substrates using triisopropyl phosphite. We report an improvement to the existing method which decreases the reaction time from 24+ hours to around 4 hours, with yields above 80%. Compared to conventional methods, our procedure requires no solvent and involves a different order of addition of reactants. This new method was employed in the synthesis of three novel aryl phosphonate esters which were subsequently transformed to phosphonic acids through silylation and hydrolysis.
Kształtowanie przestrzeni w obiektach sakralnych w Europie
Authors: Purski Michał
Published: July 2022

Tematem artykułu są badania związane ze świadomym kształtowaniem przestrzeni w obiektach sakralnych w Europie. Badania dotyczą zabiegów przestrzennych doświadczanych przez użytkownika na trzech spośród pięciu sklasyfikowanych przez Dimaggia i Semerariego (2001) poziomach doświadczania przestrzeni przez użytkowników – prenarracji, protonarracji i narracjach proceduralnych nieświadomych, jako opierających się wyłącznie na doświadczeniach zmysłowych użytkownika. Zdiagnozowane zabiegi przestrzenne podzielono na 3 kategorie: budujące świadomość przestrzeni, skupiające uwagę oraz wywołujące działanie.
Analiza komfortu przemieszczania się pod ziemią na podstawie wybranych przejść podziemnych w Krakowie
Authors: Jakubczak Filip
Published: July 2022

Niniejsze badania dotyczą uczucia komfortu podczas przemieszczania w przejściu podziemnym oraz czynników, które w znaczący sposób na nie wpływają. Badania są częścią cyklu, który ma na celu poznanie ogólnych warunków dających się określić jako optymalne przy projektowaniu obiektów podziemnych, w których chcemy przebywać.
A systematic review and meta-analysis of cerebrospinal fluid amyloid and tau levels in patients progressing from Mild Cognitive Impairment to Alzheimer’s Disease
Authors:   University of Warwick, Ma Yunxing , Brettschneider Julia , Collingwood Joanna
Published: July 2022

Review question / Objective: Reported levels of amyloid-beta and tau in human cerebrospinal fluid (CSF) are evaluated to discover if these biochemical markers can predict the transition from Mild Cognitive Impairment (MCI) to Alzheimer’s disease (AD). A systematic review and quantitative meta-analyses are performed to test relationships between three potential biomarkers in CSF (Aβ(1-42), T-tau, and P-tau181) and the evolution of AD in longitudinal evaluations of levels relative to baseline, using prior-published experimental data. The primary focus of the analysis is on the period describing the transition of a patient from MCI to AD, where it is critical to discover the main biomarker characteristics that differentiate patient outcomes for those who have a stable form of MCI, and those who progress to a confirmed diagnosis of AD. A secondary purpose of the review was to examine the status of iron in CSF as a function of disease status.
Estimation of zero sequence impedance in power transformers using 2D and 3D FEM
Authors: Šegović Dario , Kelemen Franjo
Published: July 2022

This paper describes calculation of zero sequence impedance in three phase, three leg core type power transformers using 2D and 3D finite element method (FEM) calculation on example of 100 MVA power transformer. Paper also describes how winding connection and arrangement affects the size and calculation of zero sequence impedance.
Statistical and numerical analysis of transformer oil AC breakdown
Authors: Marković Mladen , Radić Ivanka , Matun Vlatka
Published: July 2022

Transformer oil AC breakdown research is an important part of transformer insulation design. Research presented in this paper consists of statistical and numerical analysis of breakdown data measured in portable oil tester. Statistical analysis is done by modeling measured data as a random process with Gaussian and Weibull probability function. Numerical analysis uses statistical data for calculation of stressed oil volume, stressed electrode area and safety factors of “cumulative stress” method. Both statistical and numerical analysis showed how breakdown withstand depends on different variables and why they are important in measurement interpretation.