bluuebunny/crossref_metadata_2025 huggingface dataset:
Solusi Persamaan Diferensial Fraksional Riccati Menggunakan Metode Dekomposisi Adomian Laplace dan Analisis Kekonvergenannya
Authors: Andini Hasna Muti , Djauhari Eddy , Johansyah Muhamad Deni
Published: May 2022

Banyak fenomena-fenomena di kehidupan nyata dapat diinterpretasikan ke dalam model matematika yang diformulasikan secara matematis dan membentuk suatu persamaan diferensial. Persamaan diferensial biasa pada umumnya mempunyai orde bilangan bulat. Persamaan diferensial yang berorde pecahan disebut persamaan diferensial fraksional. Salah satu persamaan yang sering digunakan dalam kehidupan nyata yaitu persamaan diferensial Riccati. Pada penelitian ini, penulis akan mencari solusi dari persamaan diferensial fraksional Riccati menggunakan metode Dekomposisi Adomian Laplace dan analisis kekonvergenannya. Metode ini mengombinasikan antara transformasi Laplace dan dekomposisi Adomian. Sehingga, akan didapat kesimpulan bahwa barisan orde dari sebuah persamaan diferensial fraksional Riccati yang konvergen ke suatu bilangan akan mengakibatkan barisan fungsi solusi dari persamaan diferensial fraksional Riccati tersebut konvergen ke fungsi solusi persamaan diferensial fraksional Riccati dengan ordenya adalah bilangan itu sendiri.
E-Learning Interaktif dalam Pembelajaran Matematika Ekonomi dengan Menggunakan Aplikasi Blender
Authors: Asmalah Lia , Hidayat Angga
Published: May 2022

This research was conducted in order to measure how far the influence of the use of the blender application as a synchronous medium in the implementation of e-learning at Pamulang University in particular to increase distance learning motivation in learning economic mathematics. This study uses a research and development research type and a instructional design model of instructional design. The subjects in this study were learning media on the subject of economic mathematics at Pamulang University. The assessment score given by 500 Pamulang University students as respondents, became the data which was then analyzed by validity testing with the product moment correlation technique, and reliability testing using the Croanbach alpha technique. The results of the analysis show that for the validity of the assessment score given by the Respondent to the learning media of economic mathematics subject is greater than r tabek, while the reliability of the respondent's assessment score on the learning media of economic mathematics subject has a Cronbach alpha value greater than 0.7. Based on the data above, the researcher concludes that the learning media for the subject of economic mathematics using the opensources blender application are declared valid and reliable so that it can be said to be feasible to be used as a learning medium to increase distance learning motivation at Pamulang University
Dewan Redaksi & Daftar Isi
Authors: Majamath Majamath
Published: May 2022

Dewan Redaksi & Daftar Isi
Optimalisasi Blended Learning Model Flipped Classroom pada Perkuliahan Time Series di Prodi Matematika
Authors: Khaulasari Hani
Published: May 2022

Metode blended learning model Flipped Classroom merupakan proses belajar mengajar dengan cara memadukan pembelajaran tatap muka (synchronous) dan (asynchronous) berbasis Learning Management System serta model pembelajaran terbalik dari metode tradisional. Tujuan penelitian adalah mengevaluasi dari penerapan optimalisasi blended learning flipped classroom pada perkuliahan time series. Sampel penelitian adalah mahasiswa Prodi Matematika yang mengambil mata kuliah Time Series semester Ganjil 2021/2022 sebanyak 33 mahasiswa. Hasil belajar Mahasiswa sebelum (KUIS 1) dan sesudah (UTS) diterapkan metode blended learning model Flipped Classroom di uji paired t-test kemudian melakukan analisis kualitas pembelajaran dengan menghitung indeks kualitas layanan dan analisis GAP. Penerapan blended learning Flipped Classroom telah terbukti optimal dalam meningkatkan hasil belajar mahasiswa karena hasil belajar mahasiswa setelah penerapan pembelajaran blended learning Flipped Classroom lebih tinggi daripada nilai hasil belajar mahasiswa sebelum penerapan pembelajaran blended learning Flipped Classroom. Kualitas layanan pembelajaran blended learning Flipped Classroom sudah baik, akan tetapi ada beberapa indikator kualitas yang perlu diperbaiki yakni Fasilitas hotspot/Paket data internet (A1), Pengembalian hasil koreksi tugas, kuis, UTS dan UAS kepada mahasiswa (b5) dan Intensitas dosen untuk ditemui dalam rangka konsultasi (c1).
Fasilitas Belajar dan Dukungan Sosial Orang Tua Terhadap Hasil Belajar Peserta Didik
Authors: Putra Alberto Tri , Yasmi Fifi , Triyono
Published: May 2022

Penelitian ini dilatarbelakangi peserta didik memiliki nilai rapor yang rendah, dikarenakan siswanya kurang perhatian dari keluarganya, dan lingkungan sekitar, sehingga mereka tidak ada yang mengajarkan seberapa penting pendidikan bagi peserta didik yang masih terpengaruh dengan kata-kata kakak tingkat, bahwa “ kamu lulus tidak lulus, karena guru akan meluluskan. Tujuan penelitian ini adalah untuk mendeskripsikan pengaruh dari: 1) Pengaruh fasilitas belajar terhadap hasil belajar. 2) Pengaruh dukungan sosial orangtua terhadap fasilitas belajar. 3) Pengaruh fasilitas belajar, dukungan sosial orangtua terhadap hasil belajar.Penelitian ini dilakukan dengan menggunakan metode deskriptif kuantitatif. Populasi penelitian adalah 132 peserta didik, jumlah sampel 58 peserta didik yang dipilih dengan teknik protional random sampling. Instrumen yang digunakan yaitu angket dan data dianalisis dengan statistik deskriptif teknik persentase dan regresi linear berganda. Berdasarkan hasil penelitian tentang Pengaruh fasilitas belajar dan dukungan sosial orang tua terhadap hasil belajar peserta didik kelas XI IPS di SMAN 2 Pariaman tergambar: 1) Adanya pengaruh fasilitas belajar terhadap hasil belajar sebesar 23%. 2) Adanya pengaruh dukungan sosial orangtua terhadap hasil belajar sebesar 19%. 3) Adanya pengaruh fasilitas belajar, dukungan sosial orangtua terhadap hasil belajar sebesar 23% peneilitan ini direkomendasikan kepada peserta didik agar memanfaatkan fasilitas belajar yang ada, baik di rumah maupun di sekolah dengan sungguh-sunguh sehingga peserta didik mendapatkan hasil belajar yang baik.
Hubungan Prestasi Belajar dengan Harmonisasi Guru dan Orang Tua Peserta Didik
Authors: Idris Idriani , Harun Sartin , Madina Rena
Published: May 2022

Penelitian ini bertujuan untuk mengetahui hubungan prestasi belajar dengan harmonisasi guru dan orang tua peserta didik kelas XI di SMA Negeri 4 Gorontalo. Penelitian ini merupakan penelitian kuantitatif korelasional yang terdiri dari 2 variabel yaitu variabel X  (Harmonisasi Guru dan Orang tua peserta didik) dan variabel Y (Prestasi Belajar). Alat pengumpulan data yang digunakan adalah angket. Tehnik analisis data yang digunakan ialah analisis regresi dan korelasi. Populasi dalam penelitian ini adalah seluruh siswa kelas XI yang berjumlah 277 orang. Sampel penelitian berjumlah 34 siswa dengan pengambilan menggunakan teknik random sampling. Berdasarkan hasil penelitian terdapat hubungan yang positif antara Prestasi belajar ditinjau dari harmonisasi guru dengan orang tua peserta didik. Hasil pengujian persamaan regresi Yˆ= 52.57+0,18X, menunjukkan bahwa, setiap kenaikan satu unit skor harmonisasi guru dengan orang tua peserta didik dapat menaikkan skor prestasi belajar.
PENGARUH JENIS MEDIA ADSORBENT TEMPURUNG KELAPA DAN ARANG SEKAM PADI UNTUK MENURUNKAN KADAR WARNA DAN TSS AIR LIMBAH BATIK
Authors: Nasirudin Nasirudin
Published: May 2022

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PEMANFAATAN KOMBINASI BAGASSE DAN ARANG SEKAM PADI SEBAGAI ADSORBEN DALAM MENURUNKAN PARAMETER WARNA, TSS, DAN COD PADA LIMBAH CAIR BATIK
Authors: Diananto Diananto
Published: May 2022

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PENGARUH VARIASI UKURAN BUTIR BAHAN TERHADAP KUALITAS BIOBRIKET ARANG KULIT KACANG TANAH
Authors: Muâ€™minin Amirul , Indrawati Rosiana , Styana Ucik Ika Fenti
Published: May 2022

Kebutuhan dan konsumsi energi semakin meningkat sejalan dengan bertambahnya populasi manusia dan meningkatnya perekonomian masyarakat, serta perkembangan industri di seluruh dunia. Oleh karena itu kita dituntut untuk memikirkan sumber energi alternatif yang dapat diperbaharui. Salah satu sumber energi alternatif yang dapat digunakan yaitu energi biomassa berupa biobriket dengan memanfaatkan kulit kacang tanah. Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh variasi ukuran butir bahan terhadap kadar air, lama pembakaran, laju pembakaran, dan kekuatan tekan biobriket arang kulit kacang tanah. Penelitian ini merupakan penelitian eksperiment dengan obyek penelitian adalah biobriket arang kulit kacang tanah dengan menganalisis kadar air, lama pembakaran, laju pembakaran, dan kekuatan tekan. Analisis data menggunakan metode deskripif. Pada pembuatan biobriket ini dilakukan variasi ukuran butir bahan dengan ukuran 10 mesh, 18 mesh, 30 mesh, dan 40 mesh, dengan menggunakan perekat getah karet dan dilakukan 2 kali pengulangan. Dari analisis yang dilakukan terhadap hasil penelitian diperoleh kadar air terendah pada ukuran butir bahan 10 mesh yaitu sebesar 19,5641 %, lama pembakaran tertinggi pada ukuran butir bahan 40 mesh yaitu selama 44,5 menit, laju pembakaran terendah pada ukuran butir bahan 40 mesh yaitu selama 0,898 gr/menit, kekuatan tekan biobriket sangat baik pada ukuran 30 mesh dan 40 mesh.
EFEKTIVITAS JENIS SABUN CAIR X, Y DAN Z TERHADAP ANGKA KUMAN TANGAN PETUGAS HIGIENE SANITASI RSUD MORANGAN SLEMAN YOGYAKARTA
Authors: Winarti Cuti
Published: May 2022

Salah satu prioritas utama sanitasi rumah sakit adalah pencegahan infeksi nosocomial yaitu infeksi yang terjadi di rumah sakit atau infeksi yang disebabkan oleh kuman yang di dapat selama bertugas di rumah sakit.Perilaku mencuci tangan pengolahan limbah yang kurang cers menyebabkan infeksi nosocomial di lingkungan rumah sakit. Penggunaan sabun merupakan salah satu alternatif antiseptic tangan dan pencegahan terhadap penularan infeksi nosocomial.Tujuan penelitian ini adalah mengukur efektivitas 3 (tiga) jenis sabun cair X, Y dan Z , dosis pemakaian 1 tetes, 2 tetes dan 3 tetes, serta pengaruh jenis sabun terhadap angka kuman tangan terhadap petugas Hygiene Sanitasi Rumah Sakit.Penelitian ini adalah jenis penelitian deskriptif dengan melakukan eksperimen dan analisis laboratorium terhadap 3 Jenis sabun cair untuk mengukur efektifitasnya terhadap angka kuman bagi subyek penelitian yaitu tangan petugas Hygiene Sanitasi rumah sakit.Hasil penelitian menunjukkan bahwa ada pengaruh jenis sabun cair X, Y dan Z terhadap angka kuman petugas Hygienen Sanitasi Rumah sakit Morangan Sleman. Penggunaan sabun Z mampu menurunkan angka kuman secara maksimal yaitu 0,67, sedangkan yang paling efektif dalam menurunkan angka kuman adalah sabun cair jenis Z dengan dosis 3 tetes dengan tingkat efektivitas sebesar 85,65 %. Meskipun sabun Y dengan dosis 5 tetes mampu membunuh angka kuman sampai 0 %, termasuk jenis sabun cair yang paling maksimal dalam menurunkan angka kuman.Â
ANALISIS SARANA SANITASI TERHADAP INDEKS KENYAMANAN PENGUNJUNG DI OBYEK WISATA PUNCAK SOSOK KECAMATAN PLERET KABUPATEN BANTUL
Authors: Fadhila Ashilla Sita , Triastianti Rita Dewi , Warsiyah Warsiyah
Published: May 2022

Pengembangan pariwisata di DIY telah mengalami kemajuan yang sangat pesat baik dari kualitas maupun kuantitas. Besarnya jumlah wisatawan yang berkunjung ke Pariwisata di Yogyakarta salahsatunya yaitu Puncak Sosok tentunya harus diimbangi juga dengan adanya perhatian yang besar kepada aspek-aspek kesehatan lingkungan, salah satunya adalah aspek sanitasi. Penelitian ini bertujuan untuk mengetahui sarana sanitasi dan sistem pengelolaan sanitasi serta indeks kenyamanan pengunjung dalam menggunakan sarana sanitasi di obyek wisata Puncak Sosok (toilet, air bersih, tempat sampah). Penelitian ini menggunakan metode kuantiatif deskripsi dengan populasi seluruh wisatawan di obyek wisata Puncak Sosok sejumlah 265 orang/minggu. Teknik penentuan sampel mengggunakan rumus Slovin diperoleh sampel 73 responden. Pengumpulan data menggunakan kuesioner, observasi, dan dokumentasi. Teknik analisis menggunakan deskriptif persentase. Hasil penelitian menunjukkan indeks kenyamanan pengunjung obyek wisata Puncak Sosok berdasarkan suhu dan kelembaban didapatkan hasil keseluruhannya adalah tidak nyaman. Nilai tertinggi untuk keadaan tidak nyaman adalah berada pada angka 82,54 yaitu pada pukul 08.00 WIB berdasarkan Oliver (1981), dikatakan tidak nyaman apabila indeks kenyamanan berada di antara 81 â€“ 90. Hasil kuesioner terhadap 73 responden untuk tingkat kenyamanan pengunjung obyek wisata Puncak Sosok terhadap sanitasi dasar adalah tinggi yaitu dengan rata-rata nilai sebesar 77,5% untuk jamban/toilet 80%, kebisingan 83%, aroma/bau-bauan 75%, serta penglolaan tempat sampah 72%.
PENGAMAN PANTAI ALAMI DI PANTAI SELATAN BANTUL
Authors: Masduqi Edy , Setyaningrum Agustina , Haryanti P Sri
Published: May 2022

Pantai selatan Kabupaten Bantul berbatasan langsung dengan laut lepas Samudera Hindia. Gelombang tinggiyang terjadi berdampak pada abrasi sepanjang pantai. Pusat kegiatan pariwisata dan perikanan menjadi penggerakperkembangan di kawasan pantai selatan. Keberadaan jaringan jalan, khususnya jalur jalan lintas selatan (JJLS)mendukung pariwisata. Pengaman pantai diperlukan untuk mencegah abrasi dan mengamankan fungsi kawasan.Metode penelitian Vegetasi Pelindung Alami Kawasan Pantai Selatan, adalah komparatif kualitataif.Berdasarkan penelitian ini, diketahui: (1) Sebaran vegetasi pelindung di sempadan pantai tidak merata,sebagian berselang-seling dengan fungsi pertanian tanaman semusim, (2) Vegetasi pelindung pantai masih kurangdengan rerata ketebalan sabuk hijau sekitar 43 m, (3) Ada dua kelompok vegetasi, yaitu vegetasi tahunan danvegetasi musiman.
KAJIAN POTENSI DAMPAK KESEHATAN PADA MASYARAKAT SEKITAR TAMBANG EMAS RAKYAT DI KABUPATEN WONOGIRI
Authors: Erlangga Bernado Sakti Hakim , Dwiriawan S Heru , Taufiq R Dimas , Adzan Hidayah Radhitya
Published: May 2022

Usaha pengolahan emas rakyat di Kabupaten Wonogiri merupakan kegiatan pengolahan emas yangmenggunakan metode amalgamasi. Usaha pengolahan emas ini telah berlangsung selama puluhan tahun dantersebar di Desa Boto, Kecamatan Jatiroto. Berdasarkan studi pendahuluan, penulis mengambil hipotesis bahwatedapat potensi pencemaran logam merkuri dan timbal di sekitar lokasi usaha amalgamasi emas di desa Boto. Darihipotesis tersebut, peneliti tertarik untuk melakukan penelitian dengan tahapan menganalisis kadar logam merkuridan dan timbal pada sampel limbah cair amalgamasi emas; 2) Menganalisis kadar logam merkuri dan timbal padasampel permukaan tanah di lokasi amalgamasi emas; 3) Menganalisis potensi dampak kesehatan masyarakatsekitar lokasi usaha amalgamasi emas. Penelitian ini menggunakan teknik pengujian kadar merkuri dan timbalpada sampel limbah cair amalgamasi dan permukaan tanah di lokasi usaha amalgamasi emas. Hasil penelitiandiperoleh kadar logam merkuri pada sampel limbah cair amalgamasi emas sebesar 2,128 ppm dan pada sampeltanah sebesar 186,79 ppm. Kadar logam timbal sebesar 346,16 ppm pada sampel limbah cair amalgamasi emasdan pada sampel tanah rata-rata sebesar 114,21 ppm.
Origin of the Sokoman Iron Formation, Labrador Trough, Canada
Authors: Zajac I. Stephan , Peter Jan M.
Published: May 2022

The Lower Proterozoic, Lake Superior-type Sokoman Iron Formation of the Labrador Trough is one of the world's largest iron formations. It represents a unique, major event in the history of the Trough. Originally a largely irregularly bedded, intraclastic, granular, locally oolitic, conglomeratic iron formation, it is highly variable in its stratigraphy, mineralogy, and textures, which are the consequence of sedimentology, diagenesis, metamorphism, structural deformation, and magmatic overprint. Despite its complexity, the regional characteristics of the iron formation within the 1200 km length of the Labrador Trough indicate three main stratigraphic units, defined by their dominant iron minerals: the lower and upper parts of the formation are characterized by the abundance of iron silicates and carbonates (silicate-carbonate facies), and the middle part is characterized by the dominance of iron oxides (oxide facies). The origin of these lithostratigraphic units of the iron formation is attributed to three main sea-level changes which changed the chemistry (oxidation–reduction potential) and the physical energy (wave and current action) of the sedimentary environment.

The vast amount of iron and some of the silica required for deposition of the Sokoman Formation is inferred to be the consequence of intense hydrothermal activity within a major rift created by the eastward extension of the Labrador Trough ca 1.88 Ga. The hydrothermal fluids venting within the rift saturated the deep and likely anoxic sea of the Trough with ferrous iron and some silica which then upwelled onto its oxygenated shallow waters to deposit the iron formation.

The end of the processes involved in creating the iron formation ca. 1.82 Ga is attributed to the westward contraction of the Trough induced by the Hudsonian (Trans-Hudson) orogeny, which closed the iron- and silica-generating rift and at the same time ended all magmatic activities and related sedimentation coeval with the deposition of the iron formation.
A study of the photochemical behavior of terarylenes containing allomaltol and pyrazole fragments
Authors: Milyutin Constantine V , Komogortsev Andrey N , Lichitsky Boris V , Melekhina Valeriya G
Published: May 2022

The photochemical properties behavior of 3-hydroxy-4-pyranone containing terarylenes with a pyrazole bridge fragment were studied. It was shown that UV-induced 6π-electrocyclization of the 1,3,5-hexatriene system was not observed for the considered objects molecules. At the same time, the phototransformation of such systems proceeds exclusively in the direction of the contraction of the pyranone ring leading to unstable α-hydroxydiketones. For the first time the possibility of isolation of the resulting α-hydroxydiketones in pure form was demonstrated. Wherein, it was shown that relatively low stable α-hydroxydiketones can be trapped by reaction with 1,2-phenylenediamine. The general method for the preparation of the corresponding quinoxalines on the basis of the aforementioned condensation was implemented. It was demonstrated that the studied photoreaction does not depend on the type of pyrazole bridge. The structures of three of synthesized products were established by X-ray diffraction.
Electroreductive coupling of 2-acylbenzoates with α,β-unsaturated carbonyl compounds: density functional theory study on product selectivity
Authors: Kise Naoki , Sakurai Toshihiko
Published: May 2022

The electroreductive coupling of 2-acylbenzoates with acrylonitrile in the presence of TMSCl and successive treatment with 1 M HCl gave 2-cyanonaphthalen-1-ols or 3-(3-cyanoethyl)phthalides.  On the other hand, the reaction of 2-acylbenzoates with methyl vinyl ketone under the same conditions produced 3-(3-oxobutyl)phthalides as the sole products.  What determines the product selectivity was studied using the DFT calculations.
Çevrim İçi Nefreti Önlemeye Yönelik Düzenlemelerin Sosyal Ağların Teknolojik Biçim ve İşleyişi Bağlamında Değerlendirilmesi
Authors: ATİK Abdulkadir
Published: May 2022

Kullanıcı sayıları milyarları aşan sosyal ağlar hem kamusal bir tartışma platformu hem de başat bir sosyal etkileşim ortamına dönüşmüş durumdadır. İletişim teknolojilerinin sağladığı olanaklar aynı zamanda bazı toplumsal gerilim ve çatışmaların da her zamankinden daha fazla görünür olmasına neden olmuştur. Sosyal ağların dışa vurumu kolaylaştıran yönleri, anonimliği, dolaysızlığı ve küresel doğası, aşırılık yanlıları ve nefret tacirleri için son derece elverişli bir ortam oluşturmaktadır. Ağlardaki nefret gruplarının sayısının katlanarak artması nefret söyleminin toplumsal barış ve huzuru bozarak bireysel hak ve özgürlükleri tehdit edecek aşamaya gelmesine neden olmuştur. Bu durum kurum ve kuruluşları daha kapsamlı, çok taraflı ve uzun vadeli düzenlemeler yapmaya zorlamaktadır. Bu çalışmada çevrim içi nefret söylemini önlemeye yönelik güncel dijital düzenlemelerin neler olduğu ortaya konularak bu düzenlemelerin ağların dijital döngüsü içinde uygulanabilirliği sorgulanmaktadır. Literatür taraması yöntemiyle kavramsal düzeyde ele alınan çalışma; teknoloji, insan ve toplum arasındaki olgusal ilişkileri yorumsamacı bir yaklaşımla ele almaktadır. Günümüzde hâlihazırda nefret içeriklerinin tespit edilmesi, yayından kaldırılması ve suç teşkil eden içeriklerin adli mercilere bildirilip suçun ve suçlunun kovuşturulması için geliştirilmiş teknolojik denetleme ve gözetim algoritmaları yaygın olarak kullanılmaktadır. Fakat bu algoritmalar gerek teknolojinin kendi doğasından kaynaklanan yetersizlikler gerekse de nefret söyleminin hukuki ve kültürel anlamda henüz daha netleşmemiş kavramsal yapısından dolayı soruna çözüm olamamaktadır.
Nefret Söylemi ve Sinema: "Kurtlar İmparatorluğu" Üzerine Bir Söylem Analizi
Authors: GÜZ Nurettin , DUMLU Behlül Burak , TANER Ali
Published: May 2022

Bu çalışma, sosyal yaşamda ve medyada izlenebilen nefret söylemi ve nefret suçu kavramları üzerine bir araştırmayı amaç edinmektedir. Terminolojiye yeni kazandırılan nefret söyleminin nasıl bir ifade biçimi olduğuna, neyi amaç edindiğine ve ifade özgürlüğü ile arasında nasıl bağ olduğuna dair kavramsal bir perspektif sunulacak ve bu tartışma alanları, Kurtlar İmparatorluğu filmi bağlamında analiz edilecektir. İlk bölümde, nefret söylemi ve nefret suçu kavramlarının kavramsal analizi, sıklıkla karşımıza çıkan bir tartışma alanını oluşturduğu için nefret söylemini ve ifade özgürlüğünü ayıran noktalar ve nefret söyle-minde medya araçlarının rolü incelenecektir. Filmin analiz edileceği ikinci bölümde ise ırkçı nefret söyle-minin bir örneğini oluşturan Kurtlar İmparatorluğu filmi bağlamında, sinemada nefret söylemi ele alına-caktır. Çalışma, eleştirel söylem analizi yöntemi ile incelenecektir.
BIOPELÍCULAS A BASE DE QUITOSANO Y ACEITE ESENCIAL DE Minthostachys Mollis (MUÑA) CON PROPIEDADES ANTIOXIDANTE Y ANTIMICROBIANA
Authors: Villar Calero Kayser A. , Ruiz Pacco Gustavo A. , Fuertes Ruitón César M.
Published: May 2022

Las películas comestibles con fines de empaquetamiento y reemplazo del material plástico son producidas a base de materias primas biodegradables como polisacáridos y agentes con propiedades biológicas, haciendo que el producto final se constituya en una alternativa para la protección y extensión de la vida útil de alimentos. La presente investigación tuvo como objetivo central evaluar la actividad antioxidante y antimicrobiana de biopelículas de quitosano funcionalizadas con aceite esencial de muña. Para tal fin se formularon 12 biopelículas con 3 concentraciones de quitosano (1, 2 y 3%) y 3 de aceite esencial (0.5, 2 y 5%) incluyendo blancos de solo quitosano. La actividad antioxidante evaluada en biopelículas con mayor contenido de aceite esencial de muña presenta más del 60% de captación de radical libre DPPH, mientras en la actividad antimicrobiana evaluada por placas petri cultivadas con cepas Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli y Aspergillus niger que las biopelículas presentaron inhibición por en zona de contacto directo. Finalmente, las biopelículas con solo quitosano presentaron propiedades tensiles
Difelikefalin in the treatment of chronic kidney disease-associated pruritus: a systematic review
Authors:   Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland, Wala Kamila , Szepietowski Jacek
Published: May 2022

Review question / Objective: The objective of this study is to evaluate the clinical efficacy and safety as well as to summarize the current knowledge of difelikefalin in treatment of patients with CKD-aP based on the available clinical trials. Condition being studied: Chronic kidney disease-associated pruritus (CKD-aP), also known as uremic pruritus, is a condition that significantly reduces the quality of life of patients with end-stage renal disease. There were unmet needs in the treatment of this condition. Difelikefalin is a novel opioid agonist with high selectivity for kappa opioid re-ceptors (KOR) that has been shown to be effective in the treatment of this type of chronic pruritus.
Cryptocurrency and Its Impact on Different System
Authors:   School of Computing Science & Engineering Galgotias University Greater Noida, Uttar Pradesh, Narayan Rudra , Maurya Sachin ,   School of Computing Science & Engineering, Galgotias University Greater Noida, Uttar Pradesh
Published: May 2022

The fame of cryptocurrencies soars in 2017 because of a few consecutive months of the exponential development of their market capitalization. Even though machine learning has been fruitful in anticipating stock market costs through a large group of various time series models, its application in foreseeing cryptocurrency costs has been very prohibitive. The reason behind this is clear as the costs of cryptocurrencies rely upon a ton of factors like technological progress, internal competition, pressure on the markets to deliver, economic problems, security issues, political factors and so on Their high volatility prompts the incredible capability of high benefit if savvy designing systems are taken. Sadly, because of their absence of lists, cryptocurrencies are somewhat capricious contrasted with traditional financial predictions like stock market predictions. The proposed paper describes how Cryptocurrency works, its use, legal prospect, security and what is the technology behind it
Integrated Approach to Construction and Demolition Waste Management
Authors:   M. Tech Scholar, Bhilai Institute of Technology, Durg,C.G., Gautam Abhinav Singh , Jaiswal S.K ,   Proffesor,Bhilai Institute of Technology, Durg, C.G..
Published: May 2022

Management of construction and demolition waste is a major problem in Bhilai Charoda city due to the growing urban population, urbanization and lack of awareness of the people and carelessness of the governing bodies. This article highlights the actions taken for renewable construction and demolition waste management in Bhilai-Charoda city by analyzing the waste generation, collection, disposal scenario and steps taken to improve the condition of BhilaiCharoda city along with the integrated frame work. It advocates an integrated approach for the proper disposal and usage of construction and demolished waste. Keywords- Integrated, Construction, demolition, Waste management, Renewable, Disposal
A new name for the illegitimate later homonym Leonotis capensis (Benth.) J.C.Manning & Goldblatt (Lamiaceae: Lamioideae)
Authors: Manning John
Published: May 2022

The new combination Leonotis quinquedentata J.C.Manning is provided as a replacement for the illegitimate later homonym L. capensis (Benth.) J.C.Manning & Goldblatt (2010), non L. capensis Raf. (1837).
The μ Arae Planetary System: Radial Velocities and Astrometry
Authors: Benedict G. F. , McArthur B. E. , Nelan E. P. , Wittenmyer R. , Barnes R. , Smotherman H. , Horner J.
Published: May 2022

With Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures, we explore the exoplanetary system μ Arae. Our modeling of the radial velocities results in improved orbital elements for the four previously known components. Our astrometry contains no evidence for any known companion but provides upper limits for three companion masses. A final summary of all past Fine Guidance Sensor exoplanet astrometry results uncovers a bias toward small inclinations (more face-on than edge-on). This bias remains unexplained by small number statistics, modeling technique, Fine Guidance Sensor mechanical issues, or orbit modeling of noise-dominated data. A numerical analysis using our refined orbital elements suggests that planet d renders the μ Arae system dynamically unstable on a timescale of 105 yr, in broad agreement with previous work.
Serología y lucha antivenérea en el Instituto de Transfusión Sanguínea de Valencia (1937-1938): María Hervás Moncho
Authors: García Ferrandis Xavier , Arrizabalaga Jon
Published: May 2022

Durante la Guerra Civil Española aparecieron por primera vez los servicios militares de transfusión. En Barcelona y Valencia -dos de los principales bastiones de la retaguardia republicana- se habilitaron durante la contienda sendos institutos de transfusión sanguínea. El de Valencia disponía, anexo, de un laboratorio de serología dirigido por María Hervás Moncho (1894-1963). Desconocida por la historiografía, esta médica valenciana había realizado durante la década de 1920 una prolongada estancia de formación en el Instituto Pasteur de París bajo la tutela del prestigioso inmunólogo Alexandre Besredka (1870-1940). El objetivo de este trabajo es rescatar del olvido historiográfico la figura de María Hervás Moncho, analizando su trabajo al frente del laboratorio del Instituto de Transfusión Sanguínea de Valencia. Hervás estaba especialmente interesada en aumentar la sensibilidad de las pruebas serológicas empleadas en el diagnóstico de la sífilis al objeto de disminuir la incidencia de falsos negativos y, por tanto, de eventuales contagios post-transfusionales. Para alcanzar los objetivos planteados se han consultado diversas fuentes archivísticas, hemerográficas y bibliográficas, tanto manuscritas como impresas, que se especifican en la introducción.
Soledad: La voz del desierto
Authors: Capellà Miternique Hugo
Published: May 2022

La relación del espacio con la soledad se ha vinculado históricamente con el concepto de desierto. Los factores físicos y naturales del desierto han ayudado a fomentar el temor colectivo de su vacío en contraste con la seguridad que representa la ecúmene. No obstante, esa aparente dualidad encierra por un lado al desierto y la soledad como una construcción cultural que ha servido para reforzar las formas sociales de convivencia. Por lo tanto, tan conceptualmente como por su vinculación sería parte intrínseca de la misma ecúmene. Por otro lado, al profundizar, el desierto lejos del temor asoma de ese modo como un vehículo para conseguir una liberación individual replanteando entonces los cimientos mismos de nuestras sociedades complejas.
En el presente artículo conceptual introduciremos en primer lugar el significado y la construcción de la relación entre el desierto y la soledad en el contexto cultural occidental. En segundo lugar, nos centraremos en el desarrollo del miedo social al vacío respecto de una visión de convivencia con la soledad poniendo énfasis en el aislamiento en nuestras sociedades postmodernas sobre-informadas. Por último, concluiremos con una reflexión sobre la necesidad de la soledad como forma de recuperar la mirada sobre el mundo.
Il devetum Alexandrie e i genovesi tra scomuniche e licenze (sec. XII-inizio XV)
Authors: Petti Balbi Giovanna
Published: May 2022

Si affronta qui un tipo particolare di male ablata, cioè i guadagni provenienti da commerci illeciti di materiali strategici con gli infedeli, proibiti dalla Chiesa e recepiti nella normativa locale mediante in devetum Alexandrie. A Genova coloro che violano in devetum, patroni di navi, mercanti, modesti operatori economici, sono chiamati alexandrini con un termine probabilmente coniato in loco e successivamente esteso a quanti praticano questi commerci, che possono essere riscattati con il pentimento e con il pagamento di una pena pecuniaria, inizialmente devoluta al riscatto dei Luoghi Santi. Da parte di papi sempre più compiacenti, perché bisognosi di danaro non solo per compiti istituzionali, soprattutto durante il grande scisma si concedono anche licenze preventive. Si sviluppa così un mercato assai redditizio tra i “beneficiati” che, sempre per danaro, cedono le licenze di cui sono in possesso ad altri interessati a questo stesso redditizio commercio. È comunque evidente che gli alexandrini, con successive richieste di assoluzione, pagamento di sanzioni, acquisto di licenze preventive, più che al perdono e alla salvezza dell’anima, mirano a mantenere onorabilità, rispetto e buona fama, per non essere assimilati agli usurai.
Ad restituendas omnes injurias
Authors: Pluchot Nicolas
Published: May 2022

Partiellement conservés à partir de 1335, les riches registres notariés du couvent dominicain de Manresa (fondé en 1318) témoignent de l’intérêt des frères Prêcheurs de cette cité catalane pour la restitution effective des biens mal acquis par leurs concitoyens.
Déjà impliqués dans ce dossier via leur participation aux enquêtes sur les pratiques usuraires déployées par Jacques II dans la Couronne d’Aragon à la fin du XIIIe siècle, les Prêcheurs aragonais ne se sont donc pas cantonnés à une réflexion théologique et morale visant à l’élaboration d’une éthique économique d’inspiration chrétienne. Particulièrement entre 1335 et 1353, les registres du couvent de Manresa témoignent abondamment de leur implication dans le repérage (grâce notamment à la confession), l’estimation et la restitution effective des biens mal acquis par les marchands et artisans de l’industrieuse cité catalane auxquels ils offraient leurs services pastoraux.
Fatores Preditores de Abandono em um Programa Baseado na Terapia de Aceitação e Compromisso para Redução do Estresse em Universitários
Authors: Klein Zancan Renata , Bohn Constantinopolos Laura , Etchegaray Pankowski Bárbara , Da Silva Oliveira Margareth
Published: May 2022

Estudos tem mostrado um aumento nos níveis de estresse e outras psicopatologias em universitários. Porém, a busca por ajuda e a adesão a programas ou serviços de saúde mental nas universidades ainda é menor que a demanda. O objetivo deste estudo foi avaliar os preditores de abandono entre estudantes de graduação, que se propuseram a participar de um programa baseado na Terapia de Aceitação e Compromisso para redução do estresse. Trata-se de um estudo longitudinal retrospectivo. No total, 44 estudantes iniciaram o programa e 21 completaram a intervenção. O índice de abandono nesta amostra foi compatível com estudos anteriores. Foram realizadas análises de regressão logística binária para identificar variáveis potencialmente preditivas de abandono.  As análises apontaram como principal fator preditor de desistência a sintomatologia de depressão, que apresentou diferença estatisticamente significativa (p=0,021) na comparação entre os grupos. Assim, considera-se fundamental incluir, nas intervenções em saúde mental para universitários estratégicas específicas para esta sintomatologia, a qual pode influenciar significativamente a não adesão aos programas.
Adesão ao Tratamento em Esquizofrenia e as Terapias Comportamentais Contextuais
Authors: De Freitas Araújo Danilo
Published: May 2022

A esquizofrenia é um transtorno de sintomatologia complexa, e um dos que mais afetam o funcionamento dos indivíduos diagnosticados. Alguns fatores estão relacionados a um pior prognóstico, dentre eles a baixa adesão ao tratamento. Nesse cenário, novas terapêuticas advindas das Terapias Comportamentais Contextuais surgem com possibilidades interventivas. Por isso, o objetivo deste estudo foi identificar evidências de efetividade dessas terapias para a esquizofrenia, e se elas podem resultar em uma melhor adesão. Para isso, foi realizada uma revisão da literatura integrativa a partir da busca de artigos produzidos no período de janeiro de 2016 a janeiro de 2021. Dos 16 trabalhos identificados nas bases de dados, a maioria confirma ganhos substanciais em motivação e adesão, além de diminuição da gravidade dos sintomas psicóticos e menores taxas de reospitalização, a partir da Entrevista Motivacional; Mindfulness; Terapia de Aceitação e Compromisso e Terapia Focada na Compaixão. Desta forma, conclui-se que há potencial benefício das Terapias Comportamentais Contextuais sobre os quadros psicóticos, embora muito ainda tenha que ser feito para corroborar os achados. A produção continuada de revisões sistemáticas e ensaios clínicos randomizados garantirá que as lacunas existentes, como o desenvolvimento de protocolos clínicos para a baixa adesão de pacientes com esquizofrenia, sejam esclarecidas com novas aplicações e perspectivas.
Artificial Intelligence and Machine Learning Education and Literacy
Authors: Voulgari Iro , Stouraitis Elias , Camilleri Vanessa , Karpouzis Kostas
Published: May 2022

Artificial intelligence (AI) education and literacy are gaining momentum over the past few years; AI systems are permeating our daily lives and mediate our social, cultural, and political interactions. The implications of AI extend beyond the technical aspects and involve ethical, cultural, and social issues such as misinformation and bias. Understanding how an AI system works and critical thinking skills have, therefore, become ever more crucial for children and young people in order to be able to identify the benefits and challenges of AI. The role of the educators is, at this point, critical. This chapter is situated in the context of AI education and literacy and aims to propose a framework for teacher training on AI and ML education. The design of the teacher training courses and initial findings are described. Through an exploratory approach, insights on the attitudes, the requirements, and the recommendations of the teachers emerged.
IFACS-Q3S-- A New Admission Control System for 5G Wireless Networks Based on Fuzzy Logic and Its Performance Evaluation
Authors: Ampririt Phudit , Qafzezi Ermioni , Bylykbashi Kevin , Ikeda Makoto , Matsuo Keita , Barolli Leonard
Published: May 2022

In the authors' previous work, they proposed an integrated fuzzy-based admission control system (IFACS) for admission control in 5G wireless networks. In this paper, they present a new system by considering service level agreement (SLA) as a new parameter. They call this system IFACS-Q3S. They also implemented a new scheme for slice overloading cost (SOC), called fuzzy-based scheme for SOC (FSSOC). The SOC is used as a new input for the IFACS-Q3S system. The other input parameters for IFACS-Q3S are quality of service (QoS), slice priority (SP), and SLA. From simulation results, they conclude that the considered parameters have different effects on the acceptance decision. The increase of QoS, SP, and SLA caused an increase in the AD value, whereas the increase in SOC resulted in a decrease in the AD value. For SOC 0.3, when the QoS value is 0.1 and the SP value is 0.1, in the case when SLA is increased from 0.1 to 0.5 and 0.5 to 0.9, the AD is increased by 5% and 11%, respectively. On the other side, when the SLA value is 0.9, we see that AD is decreased 14% by increasing the SOC values from 0.3 to 0.8.
Conservation Social Scientists in Transnational Institutions
Authors: Claus C. Anne
Published: May 2022

For decades, social scientists have been advocating for more social science in transnational conservation. Yet they confront considerable structural and epistemological challenges as they integrate in the organisations that hire them, since they face dual challenges of being numerical minorities and occupying low rungs on environmentalist knowledge hierarchies. This article analyses the labour of conservation social scientists employed in transnational non-governmental organisations (NGOs) through the lenses of interdisciplinarity and expertise to elucidate how they attempt to effect changes in their institutions. Conservation social scientists find themselves collaborating in asymmetrical interdisciplinarity and, therefore, they engage in extra hidden labour as they seek to disrupt hegemonic ways of conceptualising and practising conservation. These findings suggest that institutions must continue to make more meaningful bureaucratic, structural, and ideological changes if they truly aim to 'mainstream' the human dimensions of conservation.
Axillary channel-assisted TOETVA
Authors: Ruan Jian , Yang Xia , Zhao Jian Guo , Tao Long , Ning Xiao Jie , He Fan , Zhou Chan Yuan , Zhou Cheng , Karcz Wojciech Konrad
Published: May 2022

Aim:

To evaluate the protective effect of axillary channel-assisted (ACA) transoral endoscopic thyroidectomy vestibular approach on mental nerve.

Materials and Methods:

From August 2018 to December 2020, 126 cases of thyroid micro-carcinoma patients who underwent endoscopic thyroidectomy were recruited retrospectively. Of those, 74 cases were performed with ACA trans-oral endoscopic thyroidectomy vestibular approach (ACA_TOETVA) (V and A group), 52 cases received standard TOETVA (V group). On postoperative day 1 (POD1), nylon monofilament test and numbness visual analogue scale score were conducted to evaluate the severity of numbness within the mental area, facial expression was tested to determine the motor function of lower mandible and the thickness of cutaneous and subcutaneous layers was measured with ultrasound. The other observation parameters including the time for operation and intraoperative blood loss were carefully collected.

Results:

On POD1, nylon monofilament test showed that scores in the V and A group (2.9 ± 0.3) were significantly higher than V group (1.7 ± 0.5), P < 0.01, u = 254. The completion percentage of facial expression in the V and A group was 90.5% (67/74) and significantly higher than in V group (21.2%, 11/52), P < 0.01, χ
2 = 62.35. The thickness increment of cutaneous and subcutaneous layer was 2.2 ± 1.2 mm in the V and A group, which was significantly less than in the V group (4.0 ± 1.2 mm), P < 0.01, u = 605. Compared with V group, the operation time (113.4 ± 22.3 min vs. 127.7 ± 25.6 min, u = 1262) and intraoperative blood loss (43.5 ± 13.4 ml vs. 51.0 ± 14.1 ml, u = 1355) were also significantly less in the V and A group.

Conclusions:

The ACA transoral endoscopic thyroidectomy possesses the protective effect on mental nerve and motor function of lower mandible and facilitates the operative procedures of TOETVA.
Subfoveal perfluorocarbon liquid droplet can be removed without puncturing the retina
Authors: Sato Tatsuhiko
Published: May 2022

Subfoveal perfluorocarbon liquid (PFL) is a vision-threatening complication that requires removal as safely as possible. We experienced a surgical case of proliferative vitreoretinopathy, in which a subfoveal PFL droplet was removed through the fovea, without puncturing the retina. In this case, although the retina was completely attached after primary vitrectomy and cataract removal, a subfoveal PFL droplet was found. At the second surgery, after peeling the internal limiting membrane, the droplet was passively aspirated by placing a 25-gauge blunt needle on the surface of the retina. This useful technique avoids puncturing the retina and does not require the patient to maintain a specific position postoperatively.
Combined measures of identifying language risk for first-year students
Authors: Drennan Laura , Weideman Albert , Joubert Michelle , Posthumus Rohan
Published: May 2022

The disruption that accompanied the pandemic in 2020 and 2021 also affected the administration of academic literacy tests. These are employed to place incoming students at institutions of higher education in appropriate courses for the development of their ability to handle the demands of academic discourse. For many students the conventional tests, deployed online, were inaccessible. We reflect here on how possible alternatives might be employed to identify students who are at risk as a result of low levels of academic literacy. The first is an algorithm that aims to predict whether the student might be a candidate for an intensive academic literacy course, and the other, constituting the primary focus of this paper, is a conventional post-admission academic literacy test available in-house, which had the potential of being refined for such a purpose. Since the test had initially been designed to assess prospective postgraduate students’ preparedness to engage in academic writing, and had been piloted on a range of undergraduate students, this presented an opportunity to explore whether it might be possible to use it more widely. Analyses generated by programs yielding both descriptive, inferential and probability statistics are presented to show that this test was indeed capable of being employed thus, and could be refined further. At the same time, this exploration has had the further benefit of enhancing the assessment literacy of those presenting the actual academic literacy interventions. We envisage a further exploration of adapting tests of similar design for assessments that are more field-specific.
Exploring teachers’ challenges in teaching reading proficiency to isiZulu Foundation Phase learners at rural schools in KwaZulu-Natal
Authors: Ngema Millicent
Published: May 2022

Despite many interventions that have been implemented to address the challenges in teaching reading, few successes have been achieved. This article explores teachers’ challenges in teaching reading to isiZulu Foundation Phase learners at rural schools in KwaZulu-Natal. A phenomenological research design in the qualitative domain was adopted. Seventeen participants were selected by purposeful sampling from two Foundation Phase schools. Data was generated through two focus-group discussions, of which the transcripts were analysed through interpretive phenomenological analysis. The findings indicated that teachers seemed to have different understandings regarding which initial skills should be taught to learners to prepare them to be proficient readers. Over-reliance on scripted lesson plans hinders teachers from applying the teaching strategies that can best accommodate all their learners’ learning needs and give them time to support those who lag behind. This study recommends that a reading skills analysis be conducted for each learner either weekly or fortnightly to enable teachers to know the learners’ shortfalls and be able to offer support before problems escalate.
Incidence and outcome of patients with renal cell carcinoma treated with partial or radical nephrectomy in the Cantons St Gallen and Appenzell 2009–2018
Authors: Aeppli Stefanie , Engeler Daniel S. , Fischer Stefanie , Omlin Aurelius , Pratsinis Manolis , Hermann Christian , Rothermundt Christian
Published: May 2022

BACKGROUND: Over recent years, the incidence of renal cell carcinoma (RCC) has remained unchanged in Switzerland and is low compared with other European countries. Partial or radical nephrectomy is the mainstay of treatment in patients with localised disease.
METHODS: We conducted an analysis of data from the cancer registry of Eastern Switzerland on patients with surgery for RCC from 2009 to 2018, focusing on a comparison of surgical technique and outcome in tertiary and non-tertiary hospitals.
RESULTS: 492 nephrectomies were performed. Out of 441 curative procedures, 226 were radical and 195 partial nephrectomies (20 unknown). At the tertiary hospital, statistically significantly more partial nephrectomies were performed in non-metastatic patients than at non-tertiary hospitals. We demonstrate a trend towards better disease-free survival after partial compared with radical nephrectomy. The 5-year overall survival for patients diagnosed between 2009 and 2013 was 85%, 83%, and 70% in stage I, II, and III, respectively, compared with 96%, 78%, and 72% for patients diagnosed between 2014 and 2018.
CONCLUSION: RCC incidence in Switzerland has been stable during the past decade in contrast to other European countries, and no stage migration occurred. We demonstrated that patients with localised renal cancer at our tertiary centre were more likely to be treated with renal preserving surgery compared with non-tertiary hospitals. This analysis underlines the importance of local cancer registries in the comparison of treatment and outcome over time.