bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGEMBANGAN PROTOTIPE SISTEM INFORMASI MANAJEMEN PRESTASI DAN BEASISWA UNDIKSHA (PRABA)
Authors: Pradnyana I Made Ardwi , Permana Agus Aan Jiwa
Published: April 2022

Dokumentasi dan manajemen data prestasi dan beasiswa masih menjadi masalah krusial yang harus segera diselesaikan. Jika dibiarkan, masalah tersebut dapat mengganggu pengelolaan perguruan tinggi saat ini dan kedepannya. Penelitian ini merupakan penelitian pengembangan yang menghasilkan prototipe Sistem Informasi Manajemen Prestasi dan Beasiswa Undiksha (PRABA). Prototipe PRABA berhasil dikembangkan melalui metode pengumpulan data dan studi literatur, analisis dan perancangan serta implementasi dan pengujian. Pengumpulan data dilakukan dengan metode wawancara dan mengkaji dokumen beasiswa. Studi literatur dilakukan dengan mempelajari dasar teori mengenai diagram use case dan aktivitas serta perancangan basis data dengan ERD. Analisis dilakukan untuk mendapatkan kondisi yang selama ini terjadi (As Is). Kemudian penulis  merumuskan syarat fungsional yang harus dimiliki sistem untuk menangani kendala yang terjadi saat ini. PRABA diimplementasikan berbasis website dengan bahasa pemrograman PHP dan basis data MySQL. Hasil pengujian terhadap PRABA menggunakan metode pengujian black box menunjukkan bahwa PRABA sudah memenuhi syarat fungsionalitas yang sudah ditetapkan terkait manajemen data prestasi dan beasiswa.
Pengembangan Home Automation System (HAS) untuk Mengendalikan Perangkat Listrik Berbasis Bluetooth Menggunakan Aplikasi Android
Authors: Gitakarma Made Santo
Published: April 2022

Home Automation System (HAS) is a widely used reference term for a system of controlling, monitoring, and home automation functions. HAS generally required a smartphone application or web portal as its interface. The electrical devices can be controlled by a switch, timer, sensor or remote control. In this paper, we describe the module for controlling devices with applications from smartphones via a Bluetooth connection called Android Bluetooth Control Device (ABCD). This module is packaged portable and can be used in classroom learning or demonstrated to people who want to know the working principle of this module. The approach used is controlling 8 devices consisting of 4 lights and 4 additional devices. The module is controlled with smartphone application via Bluetooth using Bluetooth HC-05 which works on 2.4 GHz frequency with a maximum range of 10 m. ABCD module can be used to facilitate the user in controlling various electrical devices at home.
KOMBINASI DCT DAN BEAUFORT CHIPER UNTUK PENINGKATAN KEAMANAN HAK CIPTA CITRA DIGITAL
Authors: Setiadi De Rosal Ignatius Moses , Jatmoko Cahaya , Rachmawanto Eko Hari , Sari Christy Atika
Published: April 2022

Informasi penting seperti hak cipta tentunya perlu diamankan, terlebih saat era digital saat ini yang semakin canggih. Pengamanan informasi dapat dilakukan dengan teknik kriptografi atau penyandian. Sedangkan untuk pengamanan hak cipta dapat dilakukan dengan teknik watermarking. Penelitian ini mengkombinasi teknik kriptografi dan watermarking. Sebelum watermark disisipkan watermark disandikan terlebih dahulu. Metode watermarking yang diusulkan adalah DCT dan metode kriptografi yang diusulkan adalah Beaufort cipher. DCT dipilih karena merupakan transformasi domain yang tahan terhadap macam-macam manipulasi, cukup ringan dalam kalkulasi dan menghasilkan watermarking yang impercept. Sedangkan Beaufort cipher merupakan algoritma yang sederhana tapi sangat aman untuk pengamanan data. Alat ukur yang digunakan  dalam eksperimen adalah SSIM, CC dan analisis histogram. Berdasarkan pengukuran terhadap hasil eksperimen dari metode yang diusulkan didapatkan hasil watermarking yang tahan terhadap serangan, impercept, dan aman.
OPTIMASI PROSES ETL DENGAN METODE HEURISTIK UNTUK MEMBANGUN DATA WAREHOUSE
Authors: Putra I Nyoman Adnyana
Published: April 2022

ETL (Ekstrak, Transformasi, Load) merupakan suatu proses yang paling penting dalam pembangunan data warehouse. Secara garis besar, fungsi proses ETL adalah untuk mengumpulkan data dari berbagai sumber data yang berbeda-beda menjadi kumpulan banyak data yang terintegrasi. Dengan semakin banyaknya data yang diintegrasikan maka kinerja dari proses ETL juga akan menjadi semakin lama dan semakin berat. Hal ini akan sangat mempengaruhi performa dari kinerja data warehouse secara keseluruhan. Pemerintah Provinsi Bali, dalam melaporkan realisasi pengadaan kepada pimpinan dilakukan setiap tiga bulan dan bersifat manual padahal data dari yang dilaporkan bersumber dari tiga sistem yang sudah diterapkan. Didalam penelitian ini, membangun data warehouse dengan melakukan optimasi pada proses ETL akan menjadi jawaban untuk permasalahan diatas. Optimasi ETL dalam pembangunan data warehouse menggunakan metode Heuristik. Hasil yang didapatkan dari penelitian ini adalah optimasi ETL menggunakan metode heuristik dapat memaksimalkan waktu dan beban memory saat proses ETL. Dari tiga sumer data yang digunakan dengan 17.024 jumlah data yang diolah, selisih waktu antara ETL sebelum optimasi dengan yang di optimasi mencapai 103 menit.
Sistem Informasi Prediksi Penilaian Kredit Perbankan Menggunakan Algoritma K-Nearest Neighbor Classification
Authors: Supriana I Wayan , Raharja Made Agung , Gunawan Putu Wida
Published: April 2022

The existence of banking institutions is very important for people's lives, especially used for raise funds in the form of deposits, demand deposits, savings and others. Besides that, it is an institution banks can also play a role as channeling funds in the form of credit to the public and business entities that need it. Problems in credit disbursement cause bad loans from customers, causing losses to the bank. Credit assessment is one of the important stages that must be carried out by the bank before credit is given to the credit applicant. The credit appraisal process belongs to a semi-structured problem that is quite complex, therefore it is necessary to develop a system to predict the feasibility of applying for credit. The system built in this study uses the K-Nearest Neighbor Classification algorithm by assessing prospective borrowers from the training data used. Based on the research that has been done, the K-Nearest Neighbor Classification algorithm can be modeled in a bank credit assessment. System testing results show accuracy of calculation accuracy of 81,82%.
IMPLEMENTASI EKSPERIMEN “PENGERUH TINGGI PARA-PARA TERHADAP PRODUKSI TANAMAN TOMAT (Lycopersicum esculentum Mill)” PADA PEMBELAJARAN HORTIKULTURA
Authors: Oka Dewa Nyoman , Arnyana Ida Bagus , Sudirgayasa I Gede
Published: April 2022

Tujuan penelitian ini adalah untuk mengetahui (1) pengaruh tinggi para-para terhadap produksi tanaman tomat; (2) relevansi implementasi model ekspemerimen ini pada proses pembelajaran hortikultura. Jenis penelitian ini adalah eksperimental, dengan menggunakan rancangan acak lengkap. Sampel penelitian dibagi menjadi dua kelompok, yaitu kelompok kontrol (P0) yang tidak diberi para-para dan kelompok eksperimen (P1, P2, P3 dan P4) yang diberi perlakuan berupa para-para dari bambu dengan tinggi masing-masing 40 cm, 60 cm, 80 cm dan 100 cm. Jumlah ulangan dilakukan sebanyak empat kali. Jumlah sampel pada masing-masing perlakuan 3 tanaman. Jumlah total tanaman tomat yang dipakai sampel adalah 5 X 4 X 3 tanaman = 60 tanaman. Data yang dianalisis adalah data berat basah buah tomat. Hasil analisis uji normalitas dan homogenitas menunjukkan data terdistribusi normal dan homogen. Sedangkan hasil analisis uji anova menunjukan adanya perbedaan yang signifikan. Selanjutnya hasil analisis uji lanjut dengan uji LSD atau uji BNT, menunjukan bahwa ada perbedaan yang signifikan antara berat basah buah tomat berdasarkan perlakuan di mana hasil terbaik diperoleh pada tanaman tomat dengan perlakuan P4 yaitu penanaman dengan para-para setinggi 100 cm. Eksperimen ini sangat relevan untuk diimplentasikan pada proses pembelajaran hortikultura, mengingat eksperimen ini mampu mengembangkan potensi dan kreativitas mahasiswa serta lamanya eksperimen relatif memadai yaitu 120 hari atau 17 minggu.
FITUR EYE PROTECTION PADA LAYAR SMARTPHONE DAPAT MENGURANGI KELELAHAN MATA DAN MEMPERPANJANG DURASI PENGGUNAANNYA PADA SISWA SMP NEGERI 1 SERIRIT
Authors: Citrawathi Desak Made , Udiantari I. A. I. , Warpala S. W.
Published: April 2022

Penelitian ini bertujuan untuk mengetahui: (1) fitur eye protection pada layar smartphone dapat mengurangi kelelahan mata; dan (2) fitur eye protection pada layar smartphone dapat meningkatkan durasi penggunaan smartphone. Jenis Penelitian ini adalah penelitian eksperimental semu(quasi experimental) dengan rancangan randomize pre and post test design. Lokasi penelitian di SMP Negeri 1 Seririt Kecamatan Seririt, Kabupaten Buleleng-Bali. Pengambilan sampel dilakukan secara acak dan diambil sebanyak 26siswa. Analisis data dilakukan dengan menggunakan uji t paired dengan taraf signifikansi 5 %. Hasil penelitian ini menunjukkan bahwa ada perbedaan bermakna pada kelelahan mata sebesar 67,81 % (p < 0,05) dan durasi penggunaan smartphone sebesar 56,30 %  (p < 0,05) antara layar smartphone yang tidak menggunakan fitur eye protection dan yang menggunakan fitur eye protection. Disimpulkan bahwa penggunaan fitur eye protectionpada layar smartphone dapat menurunkan kelelahan mata dan meningkatkan durasi penggunaan. Disarankan agar para pengguna perangkat digital selalu memperhatikan kesehatan dan keselamatan kerja, salah satunya dengan cara mengaktifkan fitur eye protection pada layar smartphone untuk menghindari terjadinya kelelahan mata dan juga dapat memperpanjang durasi penggunaannya.
METODE SIMPLE ADDITIVE WEIGHTING DALAM PENILAIAN GURU PNS BERPRESTASI
Authors: Agustini Fajar
Published: April 2022

Penelitian ini berisi tentang penerapan penilaian guru PNS berprestasi Di SDN Kedung Jaya 02 Babelan, dimana saat ini belum adanya sistem penilaian untuk menentukan guru PNS berprestasi yang ada di SDN Kedung Jaya 02 Babelan. Oleh karena itu diperlukan sistem pendukung keputusan untuk penilaian guru PNS berprestasi. Sistem pendukung keputusan ini menggunakan metode Simple Additive Weighting (SAW). Metode ini sering dikenal dengan metode penjumlahan terbobot. Konsep dasar metode SAW adalah mencari penjumlahan nilai bobot dari rating kinerja pada setiap alternatif pada semua atribut. Kriteria yang menjadi penilaian untuk menentukan guru PNS berprestasi yang ada di SDN Kedung Jaya 02 Babelan adalah pedagogik, kepribadian, sosial dan profesional. Nilai yang lebih besar akan mengindikasikan bahwa alternative lebih terpilih. Pada kasus penilaian untuk menentukan guru PNS berprestasi yang ada di SDN Kedung Jaya 02 Babelan hasil dari penilaian dengan menggunakan metode SAW akan terlihat perbedaannya pada saat proses perangkingan saat menentukan guru PNS berprestasi.
METHODE K-NN FOR ANALYS SENTIMENT REVIEW KIDS APPS
Authors: Sahara Sucitra , Permana Rizqi Agung
Published: April 2022

AbstrakKini aplikasi berbasis android ataupun ios sudah merambah ke semua pengguna smartphone dari orang tua remaja sampai anak-anak, para vendor aplikasi maupun pihak pebisnis berlomba menciptakan aplikasi guna meraup keuntungan, mulai kualitas dan performa tinggi sampai kualitas yang masih sering diragukan khususnya pada pengguna anak dibawah umur yang membuat orang tua khawatir dengan yang di konsumsi anaknya, sehingga peneliti melakukan penelitian dalam penyeleksian terhadap aplikasi untuk anak-anak. Berdasarkan pendapat atau komentar masyarakat yang sudah menggunakan aplikasi tersebut yang mereka tulis kedalam media online. Dari sampel komentar yang telah direview oleh peneliti dan memperoleh data set berupa teks positif dan negatif yang diolah pada pengklasifikasian data dengan menggunakan metode k-Nearest Neighbors (k-NN), dimana metode tersebut salah satu metode algoritma yang paling terkenal dan sering digunakan pada pengenalan pola. Banyak peneliti menyatakan bahwa algoritma k-NN dapat menyelesaikan kinerja data yang sangat baik pada data set yang berbeda terutama pada penyeleksian teks, untuk meningkatkan kinerja klasifikasinya. Pada data set yang telah diuji nilai akurasi yang didapat 78.50% yang diartikan masih dalam batas yang baik pada penggunaan metode k-NN. Pada metode k-NN sesuai dengan konsep text mining yaitu bertujuan untuk mencari pola pada teks, yang dilakukan pada text mining kali ini text classification.Kata Kunci: Review Komentar, Kids Apps, k-Nearest Neighbors, Penyeleksian Teks
USABILITY TESTING PADA WEBSITE E-COMMERCE MENGGUNAKAN METODE SYSTEM USABILITY SCALE (SUS) (STUDI KASUS : UMKMBULELENG.COM)
Authors: Jiwa Permana Agus Aan
Published: April 2022

Pengembangan perangkat lunak sangat bermanfaat untuk membantu di beberapa bidang. Salah satunya adalah bidang pemasaran. Dengan perkembangan internet, proses pemasaran sudah lumbrah dilakukan melalui online dengan beberapa metode jual beli yang dilakukan seperti cash on delivery (COD), bayar di muka,  atau bayar barang saja dengan ongkos kurir dibayar setelah barang diterima. Pemasaran online memerlukan E-commerce  untuk membantu menghubungkan pembeli dengan penjual. Seperti yang dilakukan oleh kelompok perajin di Singaraja, dengan alamat website yang dapat diakses pada http://umkmbuleleng.com. Website ini sudah online, namun perlu dilakukan uji terkait untuk mengetahui apakah user dapat dengan mudah menggunakan aplikasi secara efektif dan efisien. Hal ini dilakukan untuk mengetahui tingkat kepuasan pengguna. Sebelum produk di launching secara luas, perlu dilakukan proses pengujian ini. Metode yang digunakan untuk melakukan pengujian ini adalah System Usability Scale (SUS). Hasil pengujian diperoleh yaitu baik. Sehingga aplikasi yang dikembangkan untuk perajin secara umum sudah sesuai dengan harapan pengguna
ANALISIS KADAR TIMBAL (Pb) PADA AIR SUMUR GALI DI KAWASAN TEMPAT PEMBUANGAN AKHIR SAMPAH BANJAR SUWUNG BATAN KENDAL DENPASAR SELATAN
Authors: Handriyani Kadek Ayu Tia Surya , Habibah Nur , Dhyanaputri I Gusti Ayu Sri
Published: April 2022

AbstractFinal Waste Disposal Area at Suwung, Denpasar is one of the final waste disposal area that uses an open dumping system for the waste management techniques. These waste management techniques cause the lack of the groundwater quality. On the other hand, this groundwater is still being used as a main water source by the residents around the final waste disposal area. The aim of the study was to determine of the lead concentration in the well water at the Suwung Waste Disposal Area. This research uses descriptive method with observational approach while the analysis of lead was conducted by using atomic absorption spectrophotometry (AAS). Based on the results, it is proved that there is 1 sample contains of the lead concentration more than maximum allowable of lead according to the Minister of Health of Indonesia No. 416/MENKES/PER/IX/1990. The excess of lead concentration in the water samples may influenced by the distance of the dug wells from waste disposal area which does not meet the requirements, so the pollution occur easily.Keywords: Final waste disposal area, lead determination, atomic absorption spectrophotometry (AAS)
UJI DAYA HAMBAT BERBAGAI KONSENTRASI PERASAN JERUK LEMON TERHADAP BAKTERI Propionibacterium acnes
Authors: Dewi Kadek Eliana Kesuma , Habibah Nur , Mastra Nyoman
Published: April 2022

Propionibacterium acnes merupakan salah satu bakteri yang menyebabkan terjadinya jerawat. Salah satu cara untuk mengatasi jerawat yaitu dengan memanfaatkan buah jeruk lemon. Beberapa penelitian terdahulu melaporkan bahwa jeruk lemon memiliki kandungan bahan aktif, antara lain karotenoid dan flavonoid  yang memiliki aktivitas antibakteri. Penelitian ini bertujuan untuk mengetahui kemampuan daya hambat berbagai konsentrasi perasan jeruk lemon terhadap pertumbuhan bakteri Propionibacterium acnes. Penelitian ini merupakan eksperimen murni dengan rancangan penelitian Posttest Only Control Design menggunakan metode difusi cakram Kirby Bauer dengan enam konsentrasi perasan buah jeruk lemon  yaitu 5, 12,5, 25, 50, 75, dan 100%. Kontrol kerja yang digunakan adalah kloramfenikol 30µg dan kontrol negatifnya adalah akuades steril. Hasil penelitian menunjukkan bahwa perasan buah jeruk lemon mampu menghambat pertumbuhan bakteri Propionibacterium acnes dengan rerata zona hambat berturut-turut yaitu sebesar 7,15; 9,20; 11,25; 12,50; 14,10 dan 16,90 mm dan termasuk ke dalam kategori zona hambat sedang dan kuat. Berdasarkan hasil penelitian yang diperoleh, dapat disimpulkan bahwa masing-masing konsentrasi perasan jeruk lemon memiliki kemampuan yang berbeda-beda terhadap pertumbuhan Propionibacterium acnes.
PENGGUNAAN USABILITY TESTING SEBAGAI METODE EVALUASI WEBSITE KRS ONLINE PADA PERGURUAN TINGGI
Authors: Sukmasetya Pristi , Setiawan Agus , Arumi Endah Ratna
Published: April 2022

Website KRS online adalah salah satu sistem yang ada di Universitas Muhammadiyah Magelang yang digunakan oleh civitas akademia (termasuk dosen, mahasiswa dan tenaga kependidikan) untuk merekap data akademik mahasiswa dalam jumlah yang tidak sedikit. Untuk mengetahui seberapa jauh efektif dan efisiennya dari sistem tersebut maka perlu dilakukan evaluasi. Evaluasi yang dilakukan pada penelitian ini menggunakan usability testing dengan menggunakan lima kategori yaitu learnability, memorability, efficiency, errors, dan satisfaction. Kelima indikator tadi direpresentasikan dalam bentuk pernyataan kuesioner dan disebarkan secara daring kepada pengguna website KRS online. Adapun total sampel responden adalah sejumlah 118 orang. Metode uji yang digunakan pada penelitian ini meliputi uji validitas yang terdiri dari uji reliabilitas dan uji korelasi. Signifikansi nilai Alpha yang digunakan pada penelitian ini sebesar 0.05. Dari hasil uji validitas data yang dilakukan, seluruh indikator memiliki nilai diatas 0.05. Dari hasil uji reliabilitas seluruh pernyataan yang ada pada kuesioner juga memiliki nilai Cronbach’s Alpha sebesar 0.93, yang berarti seluruh pernyataan sesuai. Hasil evaluasi menunjukkan bahwa pada Website KRS Online memiliki nilai paling tinggi pada indikator memorability sebesar 3.97 ini berarti bahwa Website KRS Online mudah diingat navigasi dan tata letaknya untuk mendapatkan informasi. Sedangkan untuk nilai terendah dari kelima indikator adalah pada indikator error dengan nilai sebesar 3 ini berarti bahwa pada Website KRS Online masih ditemukan banyak kesalahan atau error baik itu pada brokenlink, atau pada navigasi yang ada.
ANALISIS STRUKTUR GEN DAN PROTEIN LIPID DROPLET-ASSOCIATED PROTEIN (LDAP) YANG BERPERAN DALAM BIOGENESIS MINYAK PADA TANAMAN JARAK PAGAR (Jatropha curcas L.)
Authors: Saudale Fredy
Published: April 2022

Tanaman Jarak Pagar atau Jatropha curcas adalah salah satu sumber biodiesel yang menawarkan keuntungan langsung dan berkelanjutan terhadap efek rumah kaca. Ekspresi protein lipid droplet-associated protein (LDAP) berkorelasi dengan tingginya akumulasi lemak, baik di biji maupun buah. Dalam studi yang menggunakan metode penjajaran sekuen jamak ini, LDAP Jatropha menunjukkan tingkat identitas yang tinggi sebesar 82.92% dengan LDAP tanaman karet; 67,50% dengan LDAP3 Arabidopsis; 61,21% dengan LDAP2 buah Alpukat, dan 55,65% dengan LDAP1 buah Alpukat. Namun LDAP Jatropha menunjukkan tingkat identitas yang rendah yaitu sebesar 46,01% dan 37,04% masing-masing dengan LDAP2 dan LDAP1 Arabidopsis. Struktur gen dari LDAP Jatropha terdiri atas 3 ekson dan 2 intron. Asam amino pada posisi 20-40 menunjukkan indeks hidropobisitas yang tinggi (=2) dan diprediksi berinteraksi dengan LDAP dalam memfasilitasi proses biogenesis minyak pada tanaman jarak pagar.
SERAT SABUT KELAPA SEBAGAI BAHAN KAJIAN PEMBUATAN BIOETANOL DENGAN PROSES HIDROLISIS ASAM
Authors: Ayuni Ni Putu Sri , Hastini Putu Nilawati
Published: April 2022

Penelitian ini bertujuan untuk mengetahui konsentrasi optimum asam klorida (HCl) dan waktu optimum hidrolisis serat sabut kelapa untuk memperoleh kadar glukosa yang maksimal. Subjek dalam penelitian ini adalah serat sabut kelapa yang diperoleh dari Desa Temukus, sedangkan objek dalam penelitian ini adalah konsentrasi HCl dan waktu optimum. Penelitian dilakukan pada bulan Oktober 2013 – Maret 2014 di Laboratorium Analis Kimia Universitas Pendidikan Ganesha. Kadar glukosa dianalisis menggunakan metode Dubois dan diukur menggunakan spektrofotometer UV-Vis. Dari hasil penelitian diperoleh glukosa sebesar 1,44% dengan konsentrasi optimum katalis HCl pada hidrolisis serat sabut kelapa adalah 4 M dan waktu optimum hidrolisis 90 menit.
El desarrollo de nuevas herramientas y técnicas para mitigar el impacto económico de las pymes en los Altos de Jalisco
Authors: Aguilar Carvajal Luis , Villanueva Lomelí Gabriela , Navarro Del Toro Guillermo José
Published: April 2022

El presente trabajo ofrece un panorama de la manera en que, ante la contingencia de covid-19, las pequeñas y medianas empresas (pymes) dentro de los Altos de Jalisco, México, lograron mantener un equilibrio en la mayor medida posible. Se revisaron técnicas y herramientas para que las empresas pudieran detectar cuáles son las fortalezas y debilidades tanto internas y externas para prevenir o corregir desajustes en sus diferentes sectores. Asimismo, se presentan algunas de las herramientas más utilizadas por estas empresas, con las cuales lograron construir métodos eficientes para mitigar el impacto económico dentro de las mismas.
Una obra sin terminar: permanencia laboral de la mujer en la industria de la construcción
Authors: Zárate Negrete Laura Elena , Sánchez Ramos Ma. Eugenia
Published: April 2022

Debido a la existencia de normas sociales como los roles de género, la mujer es considerada desde un punto de vista machista como el ser humano destinado a procrear, dedicarse a labores sencillas que no la pongan en riesgo, además de ser considerada como la persona encargada de la educación y el cuidado de sus progenitores y de las labores domésticas. Dentro del mundo globalizado, esta situación se ha transformado, y la mujer cada vez va adquiriendo mayor respeto de sus derechos e igualdad de oportunidades. Asimismo, la Agenda 2030 para el Desarrollo Sostenible de las Naciones Unidas reivindica la igualdad de género, no solo como un derecho humano fundamental, sino como una base necesaria para lograr un mundo pacífico, próspero y sostenible. Sin embargo, a pesar de esto y del empoderamiento que la mujer ha adquirido, continúan existiendo situaciones en las que se le discrimina por el simple hecho de ser mujer, una de ellas es en el entorno laboral; en este caso, dentro de la industria de la construcción. Con esta investigación de enfoque cualitativo y descriptivo, se pretende generar un panorama respecto a la situación que se continúa viviendo dentro del entorno laboral en la industria de la construcción, ya que es un ámbito considerado como exclusivo para los hombres, lo cual es una actitud discriminatoria.
Studies and Researches on Heating Microstructures of Some Steels
Authors: Stoian Elena Valentina , Bratu Vasile , Bratu Ruxandra Elena , Petre Ivona Camelia , Enescu Maria Cristiana , Rusanescu Carmen Otilia
Published: April 2022

An important category of widely used steels is chromium alloy improvement steels (STAS 9382/4-89) intended for the execution of shafts, axles, cams, sprockets and sprockets subjected to operation at important demands. The properties of these steels are determined both by the chemical composition and by the way of plastic elaboration and deformation, but also by the way in which the structural transformations to the thermal treatments of tempering and recovery result. The properties of a certain steel are largely determined by the granulation size of the secondary structure, which in turn is dependent on the size of the austenitic granulation, respectively the hereditary granulation. At a given steel mark, the mode of heating (slow or fast) at the austenitization temperature is decisive regarding the dimensions of the austenitic grain respectively of the nature of the secondary granulation and of the operating properties. Studies and research were conducted on steels with an average content of 0.5% C (OLC 50, 40Cr10, 40Cr30), respectively alloys and chromium alloys. The experimental results show that the number of germs increases with the increase of the heating rate at austenitization. Along with the influence it has on the number of germs, the speed of heating manifests its effects on the critical temperatures of transformation. The presence of chromium additions is manifested by phenomena of carbide stabilization.
Mechatronic System Integrating an Electromagnetic Actuator with the Possibility of Moving the Working Microscopic Tool at Submicrometric Resolutions
Authors: Ardeleanu Mihaiță Nicolae , Ilie Iulian , Diaconu Emil Mihail , Gheorghe Andrei
Published: April 2022

The possibility to work by using small objects, under the microscopic view, it is a challenge. The force’s spectrum differs from that of the macroscopic scale, and many unexpected force vectors will appear. A sharp tip must be the ideal pressure vector on different microscopic small object to push, roll, and brake and so on. The positioning of this tip must be a very precise one, comparatively with the working area dimensions and we consider that 10 microns can be a reasonable measuring unit for these moves that are executed into a specific way in these kinds of cases. The mechatronic system designed to actuate the tip, becomes this paper subject. Indisputable we will talk about an actuator with one or more than one freedom degrees. Mechanical aspects are secondary, but necessary to understand the impact of electrical parameters on the minimum possible unit of movement. Electronic control refers to a switching and PWM signal, through a software that develops both the effective part of generating the control signal and the HMI interface through a touch-screen. The aim of this paper was to determine the minimum micrometric travel distance that can be obtained with a 12-bit PWM signal generated by a Raspberry mini-computer
Rigidity of Circular Plates with Radial Ribs, Placed on One Side, Neglecting the Influence of Welding Seams. Nerves with Constant Thickness and Height Along the Entire Length
Authors: Popa Carmen , Anghelina Violeta , Despa Veronica
Published: April 2022

The present study refers to a plane circular plate, provided with equidistant radial ribs, placed on one side (fig. 1), these having the same geometry of the cross section (thickness and height) along their entire length (fig.2). There is a change in the position of the neutral fiber of the ribbed plate and also in its bending rigidity, along the radius of the plate, in different cases.
Polyhydroxyalkanoate (PHA) Biopolyesters - Emerging and Major Products of Industrial Biotechnology
Authors: Mukherjee Anindya , Koller Martin
Published: April 2022

Background: Industrial Biotechnology (“White Biotechnology”) is the large-scale production of materials and chemicals using renewable raw materials along with biocatalysts like enzymes derived from microorganisms or by using microorganisms themselves (“whole cell biocatalysis”). While the production of ethanol has existed for several millennia and can be considered a product of Industrial Biotechnology, the application of complex and engineered biocatalysts to produce industrial scale products with acceptable economics is only a few decades old. Bioethanol as fuel, lactic acid as food and PolyHydroxyAlkanoates (PHA) as a processible material are some examples of products derived from Industrial Biotechnology.

Purpose and Scope: Industrial Biotechnology is the sector of biotechnology that holds the most promise in reducing our dependence on fossil fuels and mitigating environmental degradation caused by pollution, since all products that are made today from fossil carbon feedstocks could be manufactured using Industrial Biotechnology – renewable carbon feedstocks and biocatalysts. To match the economics of fossil-based bulk products, Industrial Biotechnology-based processes must be sufficiently robust. This aspect continues to evolve with increased technological capabilities to engineer biocatalysts (including microorganisms) and the decreasing relative price difference between renewable and fossil carbon feedstocks. While there have been major successes in manufacturing products from Industrial Biotechnology, challenges exist, although its promise is real. Here, PHA biopolymers are a class of product that is fulfilling this promise.

Summary and Conclusion: The authors illustrate the benefits and challenges of Industrial Biotechnology, the circularity and sustainability of such processes, its role in reducing supply chain issues, and alleviating societal problems like poverty and hunger. With increasing awareness among the general public and policy makers of the dangers posed by climate change, pollution and persistent societal issues, Industrial Biotechnology holds the promise of solving these major problems and is poised for a transformative upswing in the manufacture of bulk chemicals and materials from renewable feedstocks and biocatalysts.
Change in levothyroxine requirements after bariatric surgery in patients with hypothyroidism
Authors: Garcia-Moreno Rosa Maria , Cos-Blanco Ana Isabel , Calvo-Vinuela Isabel , Zapatero-Larrauri Miriam , Herranz Lucrecia
Published: April 2022

Objectives. This study aims to evaluate the need to modify the total and weight-adjusted doses of levothyroxine after bariatric surgery, identify predictors, and assess the influence of the weight loss on the levothyroxine requirements.

Methods. A retrospective study in patients with treated hypothyroidism that underwent bariatric surgery. The modification of the levothyroxine dose and its association with the weight loss and other potential predictors were evaluated at 6, 12, and 24 months post-surgery.

Results. Among the 63 patients included, 82.54% needed an adjustment of levothyroxine dose during the follow-up. The total weekly dose of levothyroxine (µg) decreased post-surgery at 6 months (β= −49.1; 95%CI-93.7 to −4.5; p=0.031) and 12 months (β=−54.9; 95%CI-102 to −7.8; p=0.022), but did not significantly change at 24 months (p=0.114). The weekly weight-adjusted dose (µg/k) increased at 6 months (β=1.37; 95%CI 0.91 to 1.83; p<0.001), 12 months (β=2.05; 95%CI 1.43 to 2.67; p<0.001), and 24 months (β=2.52; 95%CI 1.74 to 3.30; p<0.001). The weight loss showed association with the weight-adjusted dose (OR=1.07; 95%CI 1.02 to 1.12; p=0.004), but not the total dose (p=0.320).

Conclusions. This study shows a significant decrease in the total dose of levothyroxine requirements change after bariatric surgery during the first year of the follow-up and an increase in the weight-adjusted dose over the first two years. No predictors of modification of the total dose of levothyroxine were identified.
Diabetic foot care knowledge and practice in type 2 diabetes and relation to microvascular complications in Alexandria (Egypt)
Authors: Kassab Heba Sadek , Ismaeal Marwa Tarek , Elfattah Talaat Abd , Elaaty Abd
Published: April 2022

Objectives. Egypt occupies the 8th rank in the prevalence of diabetes mellitus worldwide. The social and financial burden of diabetes and its complications represents a major health problem in Egypt. Diabetic foot and its consequences (ulcers and amputation) are preventable through good education for both physicians and patients.

Methods. This cross-sectional study was conducted on 100 patients with type 2 diabetes attending diabetes outpatient clinic in Alexandria main university hospital (AMUH). Patients were subjected to history taking, physical examination, and laboratory investigations. Screening for peripheral neuropathy was done using Michigan Neuropathy Screening Instrument (MNSI). A pre-tested questionnaire was used to assess the diabetic foot care knowledge and practice in participants.

Results. Only 25% and 24% of participants had good diabetic foot care knowledge and practice, respectively. There was a highly significant positive correlation between knowledge and practice in studied group (p<0.001). The presence of microvascular complications leads to a significantly higher knowledge, but not practice.

Conclusions. Diabetic foot care knowledge and practice are poor in our community. Foot care knowledge, unlike practice, is increased with the presence of microvascular complications. We should develop effective educational programs for patients and physicians to increase knowledge and practice before the development of complications.
Proton pump inhibitors therapy and risk of hyperprolactinemia with associated sexual disorders
Authors: Ashfaq Muhammad , Haroon Muhammad Zeeshan , Alkahraman Yasser MSA
Published: April 2022

Proton pump inhibitors (PPIs) are the most widely prescribed medications in the world. According to numerous studies, PPIs have been linked to hyperprolactinemia, which can lead to a variety of sexual and reproductive issues. This review summarizes the effects of numerous PPIs on the blood prolactin levels and associated sexual dysfunctions, which have an effect on the patient’s life quality and fertility. The study is taken into account all the available resources till January 31, 2021. Out of total 364, only 27 relevant resources were involved in this review. In certain studies, short-term PPIs use has been shown to have little or no effect on the blood prolactin and other reproductive hormones levels. PPIs have been linked to the development of hyperprolactinemia in several case studies with varying degrees of the blood prolactin levels increase seen in individuals taking PPI alone or in combination with medications, like prokinetics. The relative risk of the sexual consequences development, such as gynecomastia, has been documented using lansoprazole and omeprazole in various cohort studies. On the other hand, other bits of data are insufficient to establish a definite relationship that can turn a possibility into certainty. The majority of the literature data is comprising of double-blind, randomized, crossover studies, case reports, and adverse drug reaction incidents reported to various pharmacovigilance centers. To investigate this link, high-quality studies in patients taking PPIs for a longer time period are needed. We conclude this article with a comprehensive discussion of the hyperprolactinemia clinical implications and the PPIs’ function.
Evaluation of an APN service in acute inpatient care of patients with a malignant brain tumor: a qualitative study in a Swiss university hospital / Evaluation eines APN-Angebots in der akut-stationären Versorgung von Patienten und Patientinnen mit malignem Hirntumor: eine qualitative Studie in einem Schweizer Universitätsspital
Authors: Geese Franziska , Molls Sabine , Schucht Philippe , Raabe Andreas , Schmitt Kai-Uwe
Published: April 2022

Background

Caring for patients with a malignant brain tumor is complex and requires a high degree of coordination. The disease reduces life expectancy and affects quality of life. Therefore, patients often depend on the support of their relatives. To achieve better care for such patients and their relatives, a Department of Neurosurgery at a Swiss university hospital introduced a Nurse Practitioner (NP) and their service in 2017. 18 months after implementation, an evaluation of this NP role was conducted. It was aimed for to explore the experience of the interprofessional health care team.

Method

A qualitative research design was used. Eight individual interviews and one focus group interview were conducted with representatives of the interprofessional health care team. Using a literature-based structured interview guide, the experience of participants was explored. Interviews were analyzed thematically.

Results

The NP and their service was appreciated. Collaboration with the medical profession and the coordination of profession-specific demands also improved. The NP as a constant person of contact had a positive effect on the continuity of care e.g., with regard to discharge management. Medical doctors and registered nurses experienced an improved patient satisfaction. Further need for improvement was identified regarding the clarification of the NP role and the interprofessional collaboration.

Conclusion

The study reports on the successful introduction of an NP and their service in oncological care; it demonstrates that the implementation of this role can also be beneficial in acute inpatient care.
The Influence of Capital Requirement of Basel III Adoption on Banks’ Operating Efficiency: Evidence from U.S. Banks
Authors: Ogunmola Gabriel A. , Chien Fengsheng , Chau Ka Yin , Li Li
Published: April 2022

The United States is recognized as the largest economic entity in the world and its financial system has developed steadily through the guidance of the Federal Reserve System for over one hundred years. However, in recent years, the global economic downturn, coupled with the global COVID-19 pandemic, has led to an unprecedented economic depression and rapid decline in the United States financial sector. Although the U.S. government has gradually instructed banks to raise the core quantity but a giant crisis under the economic depression is still present. This study thus takes U.S. commercial banks as the subject of research and employs the two-stage bootstrapped truncated regression to investigate the impacts of increases in required Core, Tier 1, and total capital adequacy ratios on their efficiency.
Adoption of Cloud Services in Central Banks: Hindering Factors and the Recommendations for Way Forward
Authors: Edmond Darell , Prakash Vijay , Garg Lalit , Bawa Seema
Published: April 2022

Current research on cloud computing often focuses on the technology itself and the benefits that one company can use and choose from cloud services. Most of the research has focused on mainstream enterprises and limited regard to Central Banks’ (CBs’) Cloud Computing Adoption (CCA). CBs are continually exploring opportunities to enhance IT efficacy while minimizing expenditures and ensuring data protection and network security. This paper investigates the factors affecting the CBs’ CCA by surveying 40 CBs representing approximately 25% of total CBs worldwide. The main participants were senior IT managers who are responsible for any IT decisions in CBs. The findings are also significant for other organizations or businesses where data privacy is crucial. The study results indicate that CBs are still reluctant to migrate to the public cloud. Influential factors preventing CCA are data protection, privacy, and risks.
Gold as a Factor of Change in Central Bank Reserves in Periods of the Financial Markets Turbulence: the Case of Kazakhstan
Authors: Dodonov Vyacheslav
Published: April 2022

The article examines the impact of changes in the gold part of the reserves of the National Bank of Kazakhstan on their total volume with an emphasis on the factor of changes in the price of gold. The value of the factor of the price of gold increases during periods of global financial crises when Kazakhstan, as an oil exporting country, is under strong pressure on the current account and the exchange rate of the tenge due to a decline in oil prices. During these periods, the National Bank conducts foreign exchange interventions to support the tenge exchange rate and spends its reserves, which increases the relevance of their safety. The paper tests the hypothesis that in such periods, the rise in the price of gold, due to its function as a safe haven asset, can compensate expenditures on foreign exchange interventions for the central banks and increase the stability of reserves. From this point of view, the article examines three periods of high turbulence in world markets of the 2000s and changes in the National Bank’s gross reserves, as well as the influence of the gold factor on these changes. It was revealed that during the crisis periods, the rise in the price of gold contributed to the stability of the gross reserves of the National Bank, and the effectiveness of this factor was directly proportional to the gold share in the reserves.
Why an Unconditional Basic Income is Highly Problematic – General Considerations and Quantitative Implications for the Case of Germany
Authors: Frenkel Michael
Published: April 2022

The concept of an unconditional basic income is not new, but it is still the subject of much controversy. This paper looks at the quantitative effects of introducing an unconditional basic income, using Germany as an example. It examines the financial implications and other major problems of an unconditional livable income measure. The analysis shows that an unconditional basic income at the level generally called for by its proponents would require massive tax increases and thus a substantial redistribution of income from the middle and upper ends of the income scale downward.
Challenges of endoscopic approach in sphenoid sinus surgery for beginners
Authors: Tarabichi Shirley , Badea Carmen , Pascu Alexandru , Neagu Mihaela
Published: April 2022

The sphenoid sinus and related anatomy should be known considering the intimate relationships with vital surrounding structures, such as the internal carotid artery, the optic canal, the maxillary and the vidian nerves. The sphenoid sinus has numerous variations regarding the pneumatization, the septation and the relation with the neurovascular structures. Multiplanar sinus CT scan is mandatory in the preoperative evaluation of the patient to avoid injury during endoscopic sphenoidotomy.

In this article, we review and describe the importance of the anatomical landmarks of the sphenoid sinus on the CT scan, the anatomic findings that augment the risk of complications during sphenoid sinus endoscopic surgery. Moreover, we discuss about the appropriate type of endoscopic approach of the sphenoid sinus depending on the localization of the pathologic process and the experience of the surgeon, as well as the endoscopic surgery challenges. We analysed 100 patients who addressed to our clinic in the last 6 months and who underwent CT of the paranasal sinuses and we studied the pneumatization type and the anatomic variations of the optic nerve and the internal carotid artery.

A variety of sphenoid sinus anatomy variations were found, and we emphasize the value of imagining evaluation before performing functional endoscopic sinus surgery.
Anthropometric aspects used to treat fractures of the naso-orbito-ethmoido-maxillary (NOEM) complex in cases of facial trauma
Authors: Rosu Andrei Mihail , Sulea Daniela , Rosu Oana Cristina , Cobzeanu Mihail Dan , Bandol Geanina , Moisii Liliana Gheorghe , Cobzeanu Luiza Maria , Costan Victor Vlad , Palade Dragos Octavian , Cobzeanu Bogdan Mihail
Published: April 2022

BACKGROUND. Fractures of the naso-orbito-ethmoido-maxillary (NOEM) complex are frequently acquired post-traumatic lesions, with both aesthetic and functional consequences, if the diagnosis is not promptly established and the surgical correction is delayed.

OBJECTIVES. This study was conducted in order to facilitate the diagnosis of NOEM complex fractures by using anthropometric measures. The aim was to obtain normal mean values of the evaluated parameters from a lot of healthy volunteers.

MATERIAL AND METHODS. The measurements were conducted on patient-specific three-dimensional models obtained from processing the CT scan images and building further stereolithographic models. 64 Caucasian patients were enrolled, with ages between 19 and 93 years, both female and male volunteers, without previous surgical history of the middle floor of the face. Measurements were performed between certain craniometric points (Nasion, Dacryon, Infraorbital foramen, Rhinion and Frontomalare orbitale) and a database was created.

RESULTS. Although some expected variation arised, we have obtained normal-considered intervals for each of the defined and measured segments between the mentioned craniometric points. We find these measurements useful especially for elaborating a presurgical plan for the best outcome.

CONCLUSION. Simple measurements could orient a fast diagnosis, could help establish a surgical plan, an optimal surgical timing by combining clinical and imaging data.
Clinical-demographic characteristics of laryngeal cancer at a third level of care
Authors: Lizárraga José Lorenzo , Lugo-Machado Juan Antonio , Martín Edwin Canché , Rodríguez Irene del Carmen Arellano , Alvarado Alejandra Pineda
Published: April 2022

BACKGROUND.Cancer is currently one of the greatest challenges in public health. In Mexico, cancer has remained in second or third place, as one of the leading causes of death.

OBJECTIVE.To describe the clinical and demographic characteristics of laryngeal cancer.

MATERIAL AND METHODS.We performed a retrospective, analytical, observational, cross-sectional study with the review of records in patients with laryngeal cancer in a period of 5 years. The variables age, sex, state of origin, occupation, clinical data were taken. A descriptive analysis of the variables and inferential statistics were carried out with Chi2 and Fisher’s exact test in search of association between tobacco and alcohol, occupation and stages of cancer. A p-value <.05 was considered statistically significant.

RESULTS.From January 2015 to December 2019, 62 records were selected, the male sex was involved in a 5:1 ratio, with an average age of 67 years. Squamous cell carcinoma was the most common pathological finding, the most frequent sub-site was glottis, stages III-IV present with greater constancy, dysphonia the most common symptom. Smoking alone or combined with alcoholism was associated with more advanced steps.

CONCLUSION.Male in the seventh decade of life who presents with dysphonia of long evolution, of day labor occupation and history of smoking with or without alcoholism, is the clinical pattern of a patient with glottic squamous cell carcinoma in advanced stage.
Analisis Manajemen Risiko Subsektor Fotografi Dalam Konteks Pandemi Covid-19: Studi Kasus Di Eternity Studio
Authors: Yulia Rizqa Sari , Santoso Sugeng , Soemanto Hendra , Kurniawan Wahyu , Zega Iqbal
Published: April 2022

Ekonomi dunia belakangan ini mengalami depresi akibat pandemi Covid-19. Hal ini berdampak sangat signifikan di beberapa sektor di antaranya sektor ekonomi kreatif, yang merupakan sektor penunjang ekonomi. Di subsektor fotografi, adanya berbagai kebijakan penguncian wilayah negara atau lockdown dan pembatasan aktivitas sosial menyebabkan munculnya rintangan baru dan terputusnya mata rantai industri. Penelitian ini dilakukan dengan pendekatan kuantitatif dengan metode FMEA dan pendekatan kualitatif dengan informan kunci Owner Eternity Studio. FMEA merupakan metode yang dapat digunakan untuk mengidentifikasi dan mengukur semua potensi kegagalan yang mungkin terjadi dalam sebuah proses. Pendekatan kuantitatif dengan metode FMEA ditambah dengan pendekatan kualitatif dengan metode wawancara informan kunci digunakan untuk menelaah lebih lanjut mengenai dampak pandemi terhadap bisnis fotografi, yaitu di Eternity Studio serta memberikan strategi manajemen risiko untuk menanggapi rintangan pada pandemi ini. Hasil penelitian menunjukkan bahwa melalui proses identifikasi, pengukuran, dan desain mitigasi risiko, risiko penularan Covid-19 dapat diminimalisasi di lingkungan kerja padat karya seperti studio fotografi.