bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Good Corporate Governance Terhadap Nilai Perusahaan dengan Kinerja Keuangan sebagai Intervening
Authors:   Fakultas Ekonomi dan Bisnis, Universitas Sumatera Utara, Medan, Manurung Agustina Dian Putri
Published: January 2023

Abstract: Purpose: This research was conducted to find out and explain several factors that are thought to influence firm value, such as how good corporate governance is and how the company's financial performance is. Research Methodology: The research sample was taken based on several criteria while the data collection was based on a documentation study which was processed using SPSS and the Sobel Test. Results: This study shows that financial performance cannot mediate the effect of managerial ownership on the value of a company. However, financial performance can mediate the effect of institutional ownership on the value of a company. Limitations: The number of variables selected in this study is limited, as well as the number of samples studied. Contribution: It is hoped that this research can be used as reference material for those who wish to do further research on this topic and is expected to be useful for company managers in an effort to maximize company value as their main objective. Keywords: 1. Managerial Ownership 2. Managerial Institutional 3. Financial performance 4. Firm value 5. Sobel test
Analisa Kekuatan Tarik dan Foto Makro Patahan Komposit Serat Eceng Gondok Berpenguat ZnO
Authors: Widi I Komang Astana , Tito Arif Sutrisno  , Rochim M. I. F.
Published: January 2023

Komposit terdiri dari dua bahan utama: penguat dan matriks sebagai pengikat. Keunggulan komposit dibandingkan material lain adalah ketahanan terhadap korosi. Sifat-sifat bahan yang dihasilkan dari kombinasi ini diharapkan dapat  melengkapi kelemahan lain dari setiap bahan penyusun. Dengan memilih kombinasi penguat dan pengikat yang tepat, dimungkinkan untuk menghasilkan komposit dengan sifat yang diinginkan. Penelitian ini dilakukan dengan menggunakan metode eksperimen, yaitu dengan memvariasikan persentase 2,5% ZnO, 5% ZnO, dan 7,5% ZnO untuk mengetahui perbedaan kekuatan tarik komposit. Dari hasil pengujian tarik, kemudian dilanjutkan dengan pengujian foto makro patahan, untuk mengetahui pengaruh penambahan partikel ZnO pada komposit serat eceng gondok. Nilai kekuatan tarik dari variasi 0%ZnO yang didapat sebesar 4 Mpa. Setelah ditambahkan variasi sebanyak 2,5% ZnO, nilai kekuatan yang didapat sebesar 12 Mpa, pada komposit variasi 5% ZnO mengalami kenaikan sebesar 16 Mpa. Dan saat variasi ditambahkan menjadi 7,5% ZnO kekuatan mengalami penurunan 8 Mpa. Penambahan ZnO terlalu tinggi dapat mengurangi kekuatan tarik. Hal ini disebabkan oleh polyester tidak mampu menyelimuti partikel zinc oxide (ZnO). Hasil dari pengujian foto makro, patahan yang terjadi rata-rata patahan getas dan terdapat fiber pull out dan void (kekosongan) dikarenakan lemahnya ikatan antar serat dengan matrik mengakibatkan banyaknya terjadinya fiber pull out.
Pengaruh Variasi Tekanan Gravity Shot Peening Pada Proses Pengerasan Permukaan terhadap Sifat Mekanis dan Morfologi Struktur Baja S45C
Authors: Pratama Ago Edli , Sakuri Sakuri , Prabowo Nugrah Rekto
Published: January 2023

Penelitian bertujuan mengetahui surface treatment dengan metode gravity shot peening menggunakan variasi tekanan terhadap kekerasan, pengamatan struktur mikro dan foto makro dari baja S45C. Baja S45C merupakan jenis baja yang memiliki kadar karbon (0.3-0.5%C) memungkinkan baja ini untuk ditingkatkan lagi sifat mekaniknya. Parameter penelitian metode gravity shot peening pada material baja S45C dengan variasi tekanan penembakan 5 kg/cm², 6 kg/cm² dan 7 kg/cm². Jarak penembakan 100 mm. Waktu 7 menit, dan menggunakan bola baja tipe S23 dengan diameter 0,6 mm. Diameter nozzle 5 mm. Spesimen diletakkan tegak lurus (900). Metode shot peening dapat meningkatkan kekerasan suatu material.  Nilai rata-rata kekerasan terbesar ada pada variasi tekanan 6 kg/cm² yaitu sebesar 202,8 VHN, sedangkan nilai rata-rata kekerasan terkecil pada ada variasi tekanan 5 kg/cm² yaitu sebesar 180,37 VHN. Struktur mikro pada tekanan 7 kg/cm² struktur perlit dan martensit lebih banyak dibandingkan shot peening dengan variasi tekanan yang lainnya, hal ini semakin menguatkan bahwa semakin besar tekanan shot peening maka material akan mengalami peningkatan kekerasan. Hasil foto makro raw material memiliki permukaan yang lebih halus dibandingkan dengan spesimen sesudah dilakukan shot peening. Data menunjukan semakin besar tekanan shot peening maka semakin dalam bekas penembakan bola baja dan semakin tinggi nilai kekasaran dari struktur permukaan baja S45C.
Analisis Putaran Puli Roda Gigi Flywheel Penggerak Beban Putaran Roda Gigi Transmisi Otomotif
Authors: Marpaung Parlindungan Pandapotan
Published: January 2023

Daya listrik motor listrik ac sebesar Pin = 310,4 watt menghasilkan putaran poros output digunakan menggerakkan putaran puli roda gigi flywheel menghasilkan kecepatan putar Vrpm(in)  = 347,8 rpm dengan torsi putaran parameter Tin = 8,53 Nm ditransmisikan menuju setiap masing-masing beban putaran puli roda gigi transmisi maju-1 s/d transmisi maju-4 dan transmisi mundur. Hasil penelitian pada kecepatan putar puli roda gigi flywheel parameter Vrpm(in) sebesar 347,8 rpm tersebut ditransmisikan menuju beban roda gigi transmisi maju-1 menghasilkan putaran Vrpm(maju-1) = 89,6 rpm, torsi Tout(maju-1) = 33,1 Nm dan daya mekanik Pout(maju-1) = 191,87 watt. Kemudian ditransmisikan menuju beban roda gigi transmisi maju-2 menghasilkan Vrpm(maju-2) = 162,7 rpm, Tout(maju-2) = 17,34 Nm dan Pout(maju-2) = 100,51 watt. Selanjutnya ditransmisikan menuju beban roda gigi transmisi maju-3 adalah Vrpm(maju-3) = 248,2 rpm, Tout(maju-3) = 11,36 Nm dan Pout(maju-3) = 65,85 watt. Ditransmisikan menuju beban roda gigi transmisi maju-4 menghasilkan Vrpm(maju-4) = 347,8 rpm, Tout(maju-4) = 8,11 N dan Pout(maju-4) = 47,01 watt. Untuk menuju beban roda gigi transmisi mundur menghasilkan Vrpm(mundur) = 75,4 rpm, Tout(mundur) = 37,44 Nm dan Pout(mundur) = 217,03watt.
Perlakuan Panas dan Celup Cepat (Quenching) untuk Meningkatkan Sifat Mekanik pada Baja Ringan G550
Authors: Hasan  , Aprianto M. C.
Published: January 2023

Baja ringan adalah salah satu material kontruksi yang sedang berkembang di pasaran. Penggunaan material baja ringan sebagai kontruksi atap banyak digunakan sebagai alternatif pengganti kayu atau baja. Meskipun telah banyak digunakan oleh masyarakat luas sebagai konstruksi atap, namun belum ada penelitian yang mengkaji tentang pengaruh perlakuan panas dan celup cepat pada baja ringan. Tujuan penelitian ini adalah untuk mengetahui pengaruh perubahan panas pada material G550 terhadap sifat mekaniknya. Selain itu, penelitian ini juga bertujuan untuk mengetahui pengaruh celup cepat terhadap struktur mikro dan sifat mekanik baja ringan G550. Penelitian ini menggunakan metode eksperimental yang diawali dengan pemilihan bahan baja ringan G550. Setelah bahan dipilih, dilanjutkan dengan pembuatan profil sampel uji sebanyak 36 sampel uji. Sampel kemudian dilakukan perlakuan panas menggunakan furnace. Uji kekerasan dan uji tarik dilakukan untuk mengetahui sifat mekanik sampel. Celup cepat dilakukan dengan dua media yaitu air dan oli. Untuk mengetahui struktur mikro setelah perlakuan panas dan celup cepat, maka dilakukan uji metalografi dengan pembesaran 1.000 kali. Hasil penelitian menunjukkan bahwa terdapat pengaruh perlakukan panas dan celup cepat terhadap sifat mekanik material. Kondisi ini ditunjukkan pada hasil pengukuran dari uji tarik, uji puntir, dan uji kekerasan.
Analisa Konsentrasi Larutan Garam dan Beban Pendinginan Pada Mesin Pembuat Es Balok Berbasis Energi Terbarukan dan Listrik PLN Dengan Sistem Smart Microgrid
Authors: Aldrin  , Anggara Mietra
Published: January 2023

Mesin pembuat es balok dibuat dalam rangka memenuhi kebutuhan nelayan, terutama di daerah terpencil yang bukan hanya terkendala oleh ketersediaan listrik yang kontinyu, akan tetapi juga terkendala oleh ketersediaan bahan bakar bensin maupun solar yang umum digunakan sebagai pembangkit listrik skala kecil. Sistem smart microgrid yang dikembangkan dalam penelitian ini adalah sistem hibrida berbasis panel surya, biobased diesel engine yang berbahan bakar hayati baik minyak nabati maupun gasifikasi biomassa yang berasal dari tanaman lokal maupun sampah hayati dan listrik PLN. Perancangan dari penelitian ini dilakukan di Institut Teknologi Bandung dan implementasinya dilaksanakan di Kecamatan Karimunjawa, Kabupaten Jepara, Jawa Tengah. Rancangan sistem smart microgrid menggunakan panel surya berkapasitas 5 kWp, generator biobased diesel engine kapasitas 4 kW, bi-directional inverter kapasitas 5 kW, baterai 100 Ah/12 V berjumlah 16 buah dan listrik PLN 1400 W. Generator biobased diesel engine menggunakan bahan bakar minyak diesel B-20, minyak kelapa dan minyak nyamplung. Mesin pembuat es  terdiri dari berbagai  bagian seperti kompresor, kondensor, pipa kapiler, evaporator, pompa, tangki pendingin, cetakan es, chain hoist. Refrigeran yang digunakan dalam model prototipe ini adalah R-290. Larutan garam yang digunakan adalah campuran NaCl dan air. Pada tangki produksi es direncanakan menggunakan baffle untuk meningkatkan kinerja mesin pembuat es balok. Larutan garam NaCl 20% dapat digunakan dalam proses pembuatan es balok sedangkan larutan garam NaCl 15% tidak bisa digunakan karena terjadinya kekurangan konsentrasi garam yang menyebabkan terbentuknya bunga es di evaporator. Sistem smart microgrid pada pengujian siang hari mendung mampu menyuplai kebutuhan daya beban dari energi surya, baterai dan listrik PLN dengan efisiensi inverter 59,23%. Pada pengujian mesin pembuat es balok untuk satu siklus produksi es balok dengan kondisi awal larutan garam bertemperatur lingkungan didapatkan waktu produksi 52 jam sedangkan larutan garam bertemperatur rendah waktu produksi 20 – 21,5 jam. Mesin pembuat es balok mempunyai COP refrigerasi 1,66 – 2,59 dan COP sistem 1,05 - 1,57.
Analisa Termoelektrik Generator Dan Motor DC + Kipas Dengan Perbedaan Alas Konduktor Dari Sumber Energi Panas
Authors: Rizaldi Ryan , Edahwati Luluk
Published: January 2023

Perkembangan kipas angin semakin bervariasi baik dari segi ukuran, penempatan posisi, serta fungsinya. Fungsi yang umum adalah untuk pendingin udara, penyegar udara, ventilasi (exhaust fan), pengering (umumnya memakai komponen penghasil panas). Pembangkitan listrik dari efek termoelektrik adalah proses pengubahan energi panas (perubahan suhu) menjadi energi listrik atau sebaliknya dari energi listrik menjadi perbedaan suhu (temperature differential).  Apabila batang material logam dipanaskan dan didinginkan pada 2 kutub batang material logam. Dari sisi panas ke sisi dingin dan menyebabkan timbulnya medan listrik. Termoelektrik merupakan sebuah teknologi yang berfungsi untuk mengkonversi energi panas menjadi energi listrik secara lansung. Untuk menghasilkan listrik, bahan termoelektrik cukup ditempatkan untuk menghubungkan sisi panas dan sisi dingin sumber. Panas yang dihasilkan dapat digunakan tidak hanya untuk memasak tetapi juga untuk menghasilkan listrik. Prinsip kerja dari termoelektrik adalah berdasarkan efek Seebeck yaitu jika 2 buah logam yang berbeda disambungkan salah satu ujungnya, kemudian diberikan suhu yang berbeda pada sambungan, yang mengkonversi panas (perbedaan suhu) langsung menjadi energi listrik. Faktor-faktor yang mempengaruhi dua peltier terhadap kecepatan perputaran kipas yakni suhu yang semakin dekat dengan sumber panas akan lebih cepat menghantarkan listrik, dan kualitas peltier juga dapat mempengaruhi daya hantar listrik. Hasil percobaan efek seebeck pada ketiga alas penghantar yang digunakan yakni kaleng, seng, dan aluminium. Didapatkan nilai efek seebeck dari yang tertinggi hingga terendah berturut-turut yaitu seng 0,009615 V/K, aluminium 0,005845 V/K, dan kaleng 0,005602 V/K.
Pengaruh Learning Organization Terhadap Perilaku Kerja Karyawan di Unit Telkom Corporate University PT. Telkom Indonesia TBK
Authors: Muttaqien Zaenal , Hayati Julia
Published: January 2023

Dibentuknya Telkom Coorporate University Center (TCUC) oleh PT.Telkom Indonesia Tbk menjadi bukti pelaksanaan konsep Learning Organization (LO), namun fakta dilapangan menunjukan adanya perilaku kerja karyawan TCUC yang masih negatif.Untuk melihat ada pengaruh dari pelaksanaan LOterhadap perilaku kerja karyawan dilakukan pengukuran pengaruh antara kedua variabel.Data yang digunakan dalam penelitian ini adalah data primer yang didapat dari hasil wawancara, kuesioner, dan survey lapangan sedangkan data sekunder didapat dari sumber literature.Metode yang digunakan untuk melihat pengaruh antara dua variabel menggunakan metode SEM (Structural Equation Modeling), metode ini memungkinkan untuk mengatasi ketidak normalan data walaupun skala yang digunakan berupa skala likert sehingga tetap memberikan hasil yang akurat. Dalam penelitian ini variabel learning organization di turunkan menjadi indikator sebagai berikut: Personal Mastery (PM), Mental Model (MM), Shared Vision (SH), System Thinking (ST), Team Learning (TL). Sedangkan Perilaku Kerja Karyawan di turunkan menjadi indikator sebagai berikut: Social Relationship (SR), Vocational Skill (VS), Work Motivation (WM), Initiative-Confidence (IC).Hasil penelitian menunjukan ada hubungan antara PM-VS, PM-WM, MM-SR, MM-VS, MM-WM, ST-WM, ST-IC.Dengan hasil yang didapat maka harus ada upaya yang fokus pada perbaikan aspekLO yang berhubungan dengan prilaku karyawan.
Penerapan Alat Pemotong Krupuk Bawang Yang Ergonomis DI Desa Jedong Kecamatan Wagir Kabupaten Malang
Authors: Mujiono  , Sujianto  , Hardianto
Published: January 2023

Pada Home Industri krupuk bawang dibagian pemotongan krupuk ditemukan bahwauntuk pemotongannya masih menggunakan alat manual yaitu pisau dengan cara pemotongannya membungkuk sehingga mudah lelah, membutuhkan waktu yang lama dan hasil potongannya tidak bisa sama / homogen sehingga hasilnya kurang optimal. Optimal yang dimaksud adalah untuk mengeffisien dan mengeffektifkan sumberdaya yang dimiliki, agar supaya memperoleh keuntungan sebanyak-banyaknya dengan menekan biaya serendah mungkin, dengan cara merancangkan alat pemotong krupuk yang ergonomis. Tahapan pembuatan alat pemotongan krupuk  yang ergonomis yang dapat digunakan oleh operator dengan hasil lebih effektif, effisien, aman , nyaman dan dapat meningkatkan produktifitas, dengan menguji keseragaman data, kecukupan data serta ukuran persentil yang sesuai.Hasil pembuatan  alat  untuk pemotongan krupuk dengan menggunakan ukuran anthropometri dengan hasil : tinggi alat 102.5 cm, Panjang alat 52.9 cm,lebar alat 51,8 cm, dan panjang diameter pegangan mesin 2.5 cm. Dari hasil perhitungan diperoleh hasil jika menggunaan alat lama output standar 3 kg/jan , sedangkan jika menggunakan alat baru diperoleh out standar 9.18 kg / jam, sehingga diperoleh produktifitas sebesar 206 % .
Nachhaltige Wirtschaftsgeographie
Authors: Liefner Ingo , Losacker Sebastian
Published: January 2023

Um soziale und ökologische Nachhaltigkeit zu erreichen, braucht es eine veränderte Wirtschaft. Hier stellen sich Herausforderungen auf globaler, nationaler und regionaler Ebene. Dieser Band führt umfassend in die empirischen Grundlagen, Theorien und Politikinstrumente einer nachhaltig ausgerichteten Wirtschaftsgeographie ein und ist auch für Studierende benachbarter Fächer geeignet.
Grundwissen Circular Economy
Authors: von Hauff Michael
Published: January 2023

In diesem Buch geht es darum, auf der Grundlage der planetaren Grenzen ein regeneratives System anzustreben. Neben den theoretischen, konzeptionellen Grundlagen der Circular Economy analysiert der Autor den Stand der Entwicklung in Deutschland und der EU. Gleichzeitig beleuchtet er die drei Konzepte der Umsetzung der Circular Economy: Cradle to Cradle, Blue Economy und Performance Economy.
Das Buch richtet sich an Studierende der Wirtschafts- und Sozialwissenschaften sowie der Studiengänge, die das Themenfeld Nachhaltigkeit beinhalten.
Finanzprodukte
Authors: Plötz Georg
Published: January 2023

Ziel dieses Buches ist es, umfassend und anwendungsorientiert in das breite Spektrum der Finanzprodukte einzuführen. Zunächst werden die Finanzprodukte charakterisiert. Dann wird anhand des finanzmathematischen Instrumentariums die Analyse und Bewertung durchgeführt und mit einem Beispiel veranschaulicht. Zuletzt erfolgt die Modellierung des jeweiligen Beispiels mit Microsoft Excel.
Das Buch richtet sich an Studierende der betriebswirtschaftlichen Studiengänge mit Finance-Vertiefung. Darüber hinaus dient es auch der Finanzpraxis sowohl auf Seiten der Anbieter:innen als auch der Nachfrager:innen von Finanzprodukten.
utb+: Leser:innen erhalten zusätzlich zum Buch Excel-Sheets als digitales Zusatzmaterial, um die Finanzprodukte analysieren und bewerten zu können.
Lehrbuch ADHS
Authors: Gawrilow Caterina
Published: January 2023

Grundwissen ADHS für's Studium
Fragen zum Thema ADHS betreffen viele Studiengänge: Welche Symptome sind typisch? Wie diagnostiziert man ADHS? Welche Ursachen wurden erforscht – genetisch, neuropsychologisch, umweltbedingt? Wie entwickelt sich ADHS über die Lebensspanne?
Sehr verständlich informiert dieses Buch über den aktuellen Kenntnisstand zu ADHS. Anwendungsbezogen und kritisch werden psychologische und medizinische Therapieansätze sowie pädagogische Maßnahmen vorgestellt. Im Zentrum stehen dabei Interventionsmöglichkeiten in der Schule und die Unterstützung der Betroffenen im Alltag. Mit Infokästen, Marginalien, Übungsfragen und Glossar.
Die ideale Seminarlektüre, mit der sich Studierende in Psychologie, Pädagogik und Lehramt effizient auf ihre Prüfung vorbereiten können.
Risikomanagement bei Banken und Versicherungen Schritt für Schritt
Authors: Blatter Anja , Bradbury Sean , Bruhn Pascal , Ernst Dietmar
Published: January 2023

Das Buch zeigt, wie modernes Risikomanagement bei Banken und Versicherungen in Excel und Matlab modelliert werden kann. Die Leser:innen werden systematisch und strukturiert Schritt für Schritt mit allen notwendigen Kenntnissen und Kompetenzen versorgt. Außer grundlegenden Excel-Kenntnissen sind keine Vorkenntnisse erforderlich.
Das Werk ist in 4 Teile gegliedert: In Course 1 lernt man die Grundlagen zur Analyse und Modellierung von Marktrisiken kennen. In Course 2 wird die Modellierung von Kreditrisiken eingeführt. In Course 3 werden operationelle Risiken quantifiziert, indem Schadensverteilungen aufgrund von Expertenschätzungen kalibriert werden. Danach werden in Course 4 einzelne Risikomaße näher beleuchtet. Zur Berechnung eines Risikomaßes für ein Gesamtportfolio zur Bestimmung des Risikokapitals muss die Frage nach der Aggregationsmethode diskutiert werden. Hierfür gibt es verschiedene gängige Konzepte, die in Course 5 genauer betrachtet werden.
Das Buch richtet sich an Studierende betriebswirtschaftlicher Studiengänge mit Schwerpunkt Finanzdienstleister.
utb+: Begleitend zum Buch erhalten Leser:innen Excel-Spreadsheets als digitales Zusatzmaterial zur Übung und Anwendung.
Filme drehen
Authors: Myller Hagen
Published: January 2023

Mit Film Geschichten erzählen und Emotionen wecken. Wie Filme fesselnde Geschichten erzählen, zeigt Hagen Myller. In seinem Buch beschreibt er maßgebliche Arbeitsschritte: von der Konzeption der Handlung über die Montage bis hin zur Regie. Der Fokus liegt auf einem zentralen Aspekt, der in der filmwissenschaftlichen Literatur oft unberücksichtigt bleibt – der Montage, durch die Film erst Film wird. Durch sie wird aus Handlung Erzählung und aus Bildern eine Geschichte. Filme drehen vermittelt Schlüsselkonzepte des Filmemachens, die für Produzent:innen, Regisseur:innen, Autor:innen und Cutter:innen relevant sind
Beziehungsgestaltung in der Sozialen Arbeit
Authors: Hancken Sabrina Amanda
Published: January 2023

Beziehungsarbeit ist ein zentrales Merkmal sozialarbeiterischer Professionalität. Eine gute Arbeitsbeziehung kommt nicht zufällig zustande und hängt zu weiten Teilen auch nicht von der Persönlichkeit der Sozialarbeitenden ab: Sie ist lernbar.
Im Buch werden Ideen zur schrittweisen Umsetzung eigener Beziehungsarbeit entwickelt und Grundlagen der Beziehungsarbeit vorgestellt, die als Ausgangspunkt für professionelles Handeln verstanden werden. Neben der Auseinandersetzung mit den verschiedenen (personalen und strukturellen) Einflussgrößen auf die Beziehungsarbeit runden Übungs- und Reflexionsaufgaben die einzelnen Abschnitte ab. Anhand von Fallbeispielen, die die Beziehungsgestaltung mit Adressat:innen in spezifischen Handlungssituationen der Sozialen Arbeit beschreiben, werden zentrale Kompetenzen herausgearbeitet.
Wissenschaftliche Ergebnisse verwerten
Authors: Lehmann Günter
Published: January 2023

Die wissenschaftliche Arbeit ist fertig – was nun?
Die Frage mag manche nach der erfolgreichen Disputation ihrer Graduierungsarbeit erstaunen. Ist man doch stolz auf das erzielte Ergebnis und darauf, nun endlich fertig zu sein.
Damit die wertvollen Ergebnisse aus wissenschaftlichen Forschungsarbeiten nicht im Archiv verstauben, werden in diesem Buch fünf Kanäle für das Verwerten der wissenschaftlichen Arbeit vorgestellt.
Englischunterricht analysieren und gestalten
Authors: Gehring Wolfgang
Published: January 2023

Unterrichtsentwürfe Englisch analysieren
Der Band führt praxisorientiert in die Analyse von Unterrichtsentwürfen für den Englischunterricht ein. Ziel ist die Befähigung, grundlegende Strukturen in Unterrichtsplänen zu ermitteln, sie kritisch zu sichten und evidenzbasiert einzuschätzen.
Der Band richtet sich an Studierende und Lehrverantwortliche, die sich für Aufbau und Reflexion von Planungskompetenzen in der Fremdsprachendidaktik interessieren.
Schreiben in Sozialarbeits- und Gesundheitswissenschaften
Authors: Kolip Petra , Schmidt Bettina
Published: January 2023

Während es in anderen Fächern ausreicht, eine Disziplin zu durchdringen, müssen sich Studierende der Sozialarbeits- und Gesundheitswissenschaften in vielen Disziplinen zurechtfinden und zu einer multidisziplinären Gesamtperspektive gelangen. Petra Kolip und Bettina Schmidt erklären u.a. mithilfe solider Zeitmanagement-Tipps und Checklisten, wie dies schon ab der Themenfindung gelingt.
Diagnostik und Interventionsplanung in der Unterstützten Kommunikation
Authors: Bernasconi Tobias
Published: January 2023

Manchmal will konventionelle Kommunikation nicht gelingen. Dann brauchen wir andere Formen, um uns mitzuteilen.
Unterstützte Kommunikation (UK) hilft Menschen mit Schwierigkeiten in der Verständigung und Interaktion dabei, individuelle Ausdrucksformen zu finden. Die richtige Diagnose und eine gute Interventionsplanung spielen dabei eine wichtige Rolle.
Nach einem systematischem Überblick über Theorien und Anwendungsgebiete der Unterstützten Kommunikation werden konkrete Hinweise für Einsatzgebiete und Zielgruppen unterschiedlicher diagnostischer Verfahren gegeben.
Fachkräfte erhalten einen Einblick, wie sie individuell passende Kommunikationssysteme gemeinsam mit unterstützt kommunizierenden Personen und deren Bezugspersonen erarbeiten können.
MOEMS-based Lens-Assisted Beam Steering for Free-Space Optical Communications
Authors: Goldman Daniel , Serra Paul , Kacker Shreeyam , Benney Lucas , Vresilovic Daniel , Spector Steven , Cahoy Kerri , Wachs Jordan
Published: January 2023

Free-space optical communication (FSOC) systems require precise pointing, acquisition, and tracking to send and receive optical beams for effective operation. In a lens-assisted beam steering (LABS) system, light is steered by controlling the emission location in a focal plane. The emitted light is directed into the scene by a lens, like a camera but operating in reverse. In this paper, we demonstrate a novel free-space optical communication link using a micro-opto-electro-mechanical-system (MOEMS) based photonic integrated circuit (PIC) for LABS between multiple receive locations. The MOEMS PIC operates via selective electrical actuation of an array of small grating switches (30 μm x 30 μm footprint, 100 μm pitch). Data rates up to 10 Gbps and a 3 dB optical bandwidth covering the infrared C and L bands (1530 nm to 1625 nm) are measured over a 1 m free-space link distance. Eye diagrams indicate a quality communication link for data rates up to 10 Gbps and bit-error-rates < 10-10 are measured for on-off keying (OOK) modulation. A measured beam profile is propagated into the far-field via simulation, and used to calculate link budgets for example CubeSat crosslink and downlink scenarios. Link budget calculations indicate potential > 1 Gbps CubeSat FSOC crosslinks for link lengths > 1000 km and 1 W of input optical power, using identical 90 mm transmit and receive apertures and a commercially-available fiber-coupled InGaAs avalanche photodiode (APD) receive detector.
MFNet: A Novel Multi-level Feature Fusion Network with Multi-branch Structure for Surface Defect Detection
Authors: Zhu Jiangping , He Guohuan , Zhou Pei
Published: January 2023

Surface defect detection is an essential topic in the industrial inspection field. Many methods based on machine vision (MV) have been applied. However, it is still a challenging task due to the complexity of defects, including low-contrast, small objects, and irregular geometric boundaries. To deal with these problems, this paper proposes a novel multi-level feature fusion network (MFNet) with  the multi-branch structure for surface defect detection. Firstly, we extract low- and high-level features via the encoder based on ResNet34. Secondly, an improved atrous spatial pyramid pooling module is adapted to expand the receptive field of low-level features. Then, the decoder adopts a multi-branch structure to fuse multi-level features for details, and a global attention module is introduced to strengthen the effectiveness of feature fusion and detection accuracy. Finally, the optimal result from multiple outputs can be obtained by multi-branch. Extensive experiments are carried out on three representative defect datasets: CrackForest, Kolektor, and RSDDs. The quantitatively contrastive experiments prove that our method enjoys a better semantic segmentation performance in industrial defect detection, outperforming four excellent semantic segmentation networks (CrackForest: Accuracy-98.54%, F1-Score-74.71%, IoU-60.22%; Kolektor: Accuracy-99.82%, F1-Score-83.09%, IoU-71.38%; Type-Ⅰ RSDDs: Accuracy-99.79\%, F1-Score-85.09%, IoU-74.84%).
Phase locking of THz QC-VECSELs to a microwave reference
Authors: Curwen Christopher A. , Kawamura Jonathan , Hayton Darren J. , Addamane Sadhvikas J. , Reno John L. , Williams Benjamin , Karasik Boris
Published: January 2023

High resolution frequency study and phase-locking have been performed on terahertz quantum-cascade vertical-external-cavity surface-emitting-lasers at 2.5 THz and 3.4 THz. A subharmonic diode mixer is used to downconvert the THz signal to a gigahertz intermediate frequency (IF). Feedback from reflections at the mixer are observed to have a strong influence on the free-running QC-VECSEL frequency stability as a result of efficient coupling to free-space compared to more typical ridge waveguide lasers. Instabilities in feedback result in free-running linewidths of tens of MHz, and at times >100 MHz. The QC-VECSEL IF signal is phase locked to a 100 MHz reference using the bias on the device as a means of error correction. Between 90-95% of the QC-VECSEL signal is locked within 2 Hz of the multiplied RF reference, and amplitude fluctuations on the order of 1-10% are observed, depending on the bias point of the QC-VECSEL. The bandwidth of the locking loop is ~1 MHz. Many noise peaks in the IF signal corresponding to mechanical resonances in the 10 Hz-10 kHz range are observed. These peaks are generally -30 to -60 dB below the main tone, and are below the phase noise level of the multiplied RF reference which ultimately limits the phase noise of the locked QC-VECSEL.
A Study on the Strategies for a Metaverse Content Platform Business Model - Focusing on the Media Creators
Authors:   Korea Association Of Cultural Economics, Park Eun Ji , Kim Ik Su , Kim Jae Hyun
Published: January 2023

This study is fucused on the strategies for establishing a business model of metaverse platform companies by building a content platform. Recently, media creator’s use of the metaverse platform as contents platform is increasing. However, the metaverse platform is not still creator-centered platform, and the business model is not clear for creators to utilize, so companies are not operating the platform in a form suitable for applying it to the content market.
Accordingly, in this study, a survey of 212 one person media creators in Seoul was conducted on the preferred metaverse platform business model, and based on this, a business model establishment strategy that metaverse platform companies can utilize was suggested.
In order to suggest a strategy for the business model, this study conducted a preference survey on the four business models of the metaverse content platform, which is currently used as a content platform, for media creators, and analyzed the factors influencing their preferences. As a result of the analysis, the preference was in the order of ‘compensation model proportional to the number of channel users’ > ‘profit model using advertisement’ > ‘blockchain-based P2E profit model’ > ‘collaboration model with platform companies’.
Statistically significant factors among preference influencing factors were analyzed by age and metaverse experience. This is interpreted as younger single media creators prefer the existing YouTube business model, and creators with experience using the metaverse are familiar with the blockchain-based P2E profit model.
Based on this results, we suggest the business models for metavers platform companies as ‘grafting the YouTube revenue model to the metaverse revenue model’, ‘making it easy for media creators to use the metaverse platform’, ‘creating a business that can collaborate with older creators’, ‘building an age-appropriate creator revenue model’.
The effect of Cash-Back Rebate Program on Local Bookstores
Authors:   Korea Association Of Cultural Economics, Jeong Fil-Mun , Yang Jun-Seok , Jeon Bo-Kyeong
Published: January 2023

Daejeon city provides cash-back rewards to consumers when they purchase books by local currency, ‘Ontong Dajeon’. This study analyzes the policy effects of the Daejeon’s cash-back rewards program for local bookstores. By using individual bookstores’s data of credit card payments and local currency payments, we empirically analyze the effects of cash-back rewards on sales growth and redistribution of local bookstores. Main findings can be summarized as follows. First, our ‘Before-and-After’ analysis shows that sales of local bookstores were increased by an average 53% during consumers provided with the cash-back rewards. Second, mitigating effect of cash-back rewards on sales inequality among local bookstores is very small. Specifically, as the ratio of local currency payments to total payments increase by 1%, Gini coefficient of local bookstores’ sales decrease by only 0.0084%.
Associação do polimorfismo genético da Cromogranina A com pacientes portadores de câncer de tireoide
Authors: Gontijo Bruna Rodrigues , Silva Isabella Maria Leite e , Possatti Isabella , Fratelli Caroline Ferreira , Duarte Ligia Canongia de Abreu Cardoso , Morais Rafael Martins de , Oliveira Jamila Reis de , Silva Izabel Cristina Rodrigues da
Published: January 2023

Objetivo: Descrever a presença do polimorfismo da região codante do gene CHGA Glu264Asp e associa-lo com as características clinicas da doença. Método: Trata-se de um estudo transversal, descritivo e de caso controle para investigar o polimorfismo da CHGA Glu264Asp por meio de amostras de sangue de 53 indivíduos sendo o grupo caso, formado por 23 pacientes, de ambos os sexos, que sofreram a tireoidectomia e foram submetidos ao tratamento com o Radiofármaco Iodeto de Sódio (I131). Para a genotipagem foi utilizada a técnica PCR-RFLP. Foi adotado o nível de significância de 5%. Resultados: Houve diferença estatística significativa na distribuição alélica entre indivíduos com câncer papilífero da tireoide e os sadios. Com tudo, a presença do alelo G é um fator de risco para o câncer papilífero da tireoide. Observou-se uma correlação entre o genótipo GG com o aumento do nível de TSH em pacientes que apresentavam essa patologia. Conclusão: Demostrou-se que o alelo selvagem pode ser um fator de risco para o desenvolvimento da neoplasia tireoidiana do tipo papilar. Por ser uma doença de etiologia multifatorial, são necessários outros estudos em populações diferentes para melhor compreensão da doença.
Polimorfismo da região codante do gene NOS3 em idosos com Síndrome Metabólica
Authors: Possatti Isabella , Garcia Camila Magalhães , Paula Giovanna Rodrigues de , Teixeira Marcela dos Santos , Gontijo Bruna Rodrigues , Duarte Ligia Canongia de Abreu Cardoso , Funghetto Silvana Schwerz , Silva Izabel Cristina Rodrigues da
Published: January 2023

Objetivo: O presente estudo analisou se a presença do polimorfismo VNTR localizado no íntron 4 do gene NOS3 na região codante difere nos pacientes com Síndrome Metabólica e portadores de Hipertensão Arterial e/ou Diabetes Mellitus dos controles normotensos. Método: Neste estudo caso-controle, foi executada a técnica de PCR para identificar a presença dos genótipos em 94 pacientes idosas residentes do Distrito Federal. As associações com as manifestações clínicas foram feitas no programa SPSS. Foi analisada a probabilidade de equilíbrio de Hardy-Weinberg e Odds Ratio, considerando um intervalo de confiança de 95% e nível de significância de 5%. Resultados: Verificou-se que das 94 pacientes, 71 evidenciaram a presença de hipertensão e 23 a ausência da doença, o valor de p obtido foi de 0,218. Em relação a Diabetes Mellitus, 49 idosas possuem o problema e 45 não possuem, o valor de p obtido foi de 0,372. Conclusão: Não há associação entre os genótipos do polimorfismo do gene NOS3, e a manifestação de Hipertensão Arterial e Diabetes Mellitus em idosas portadoras da SM.
Descritores: Síndrome Metabólica; Diabetes Mellitus; Hipertensão Arterial Sistêmica; NOS3; Polimorfismo genético.
role of peer review in the evaluation of research in Italy. Some remarks on the evaluation of PRINs
Authors: Vivarelli Maurizio
Published: January 2023

This contribution proposes some remarks on the evaluation and financing mechanisms of PRINs – Progetti di Rilevante Interesse Nazionale, promoted in Italy by the MUR - Ministry of University and Research, in the context of the critical issues and evolution prospects of peer review, of which a summary state of the art is presented. Starting from the partial and incomplete data made available on the MUR website dedicated to PRINs, are listed and examined the projects financed for the current disciplinary sector M-STO/08 (Archival Science, Bibliography and Librarianship), in the years between 1996 and 2020, and those included in other disciplinary areas that have as their subject matters related to the contents of the academic field M-STO/08.
Peer review ethics in Iranian LIS scholarly journals: a comparison between views of reviewers and authors
Authors: Fattahi Rahmatollah , Rajabali Beglou Reza , Akhshik Somayeh Sadat
Published: January 2023

Peer review is one of the most efficient ways to ensure the quality of papers for possible publication in scholarly journals. However, the process of peer review is not free of bias and disorders. Many reviewers are unaware of how their attitudes towards the evaluation of scholarly papers may violate Peer Review Ethics (PRE). This paper attempts to analyze the different ethical issues influencing the job of reviewing. The research sample for this study included 7 Iranian library and information journals, 124 Iranian peer reviewers, and 34 authors. Peer reviewers and authors were asked to evaluate the most important ethical elements of peer review in Iranian LIS journals through two different questionnaires based on Rajabali Beglou et al. (2019) research.
Findings showed that there was no difference among authors and reviewers in terms of gender in most PRE elements. Also, the level of experience of the authors was not significant in terms of understanding and acceptance of the PRE among reviewers and authors. However, review experiences regarding some PRE elements were significant in respondents’ viewpoints. The experiences reviewers had already gained were influential on their views about PRE. In addition, results showed that there were significant differences among reviewers and authors about the PRE elements in LIS journals. Authorship experiences had not effect on the PRE elements and the dual role of peer reviewing and authorship had no impact on their views.
Open peer review: the point of view of scientific journal editors
Authors: Abadal Ernest , Melero Remedios
Published: January 2023

Academic journals have been incorporating several elements of open science: open access (since 2000), later, the deposit of research data of the articles published, the dissemination of preprints before the publication of the paper and, finally, the open peer review (OPR). While open access is well-established and the inclusion of research data is increasingly widespread, the OPR is just at the beginning of its incorporation as a real alternative to the double-blind model, which is the most widespread and consolidated.
The objective of our article is to analyse the opinion of the editors of Spanish scientific journals about the advantages and disadvantages or barriers for the implementation of the OPR. This is a qualitative study that has been carried out from the open answers of a questionnaire sent to the 1875 editors of the Spanish academic journals that appear in the database Dulcinea and that obtained a response of 22.4%. Regarding the limitations, the study is based on the opinions and experience of the editors of Spanish scientific journals, which are mostly published by academic institutions and are in the field of social sciences and humanities.
The results focus on delving into the advantages and disadvantages. Among the encouraging factors, the editors point out that to have open reports is very useful for the scientific community, that it recognizes the role of the reviewer, makes it possible to control the arbitrariness of some reviewers, and that it promotes the reviewer-author dialogue. The main barriers discussed are the following: a possible lack of objectivity and rigor, resistance to change a consolidated system (“double-blind”), knowing the author benefits established authors and harms novices, more difficulties for finding reviewers, increases costs and can lengthen the review process.
Open peer review: some considerations on the selection and management of reviewers
Authors: Capaccioni Andrea
Published: January 2023

Open peer review (OPR) is a type of review that has long since made space alongside the more well-known single-blind and double-blind peer reviews. Despite this, we still do not have a shared definition by the scientific community and publishers. The purpose of this paper is to offer some reflections on the selection of reviewers in OPR, a process that in its current configuration is traced back to the 19th century. After a brief overview of the best-known definitions of open peer review, the paper continues with an analysis of some aspects of reviewer selection carried out with the help of data from a recent survey.
Gender equality in library science and book history Italian journals: a focus on boards, authors and peer-reviewers
Authors: Sonzini Valentina
Published: January 2023

The presence of women in Italian open access journals in library science and book history has never been subject to quantitative evaluations. As in the case of other areas in the humanities, the study of the number of women on the boards and as authors has taken second place to analyses of gender positioning in academic careers. Starting from the data entered into Wikidata by the project "Riviste di biblioteconomia" managed by the Wikidata Group for Museums, Archives and Libraries, the contribution presents a focus on AIB Studi, Bibliothecae.it and JLIS.it regarding the gender balance in the scientific committees and board and the number of female contributors. In conclusion, a mention concerns the small number of articles from foreign countries, in particular from Africa and South-East Asia.
Peer review in research assessment and data analysis of Italian publications in SSD M-STO/08 (Archival science, bibliography, library science)
Authors: Morriello Rossana
Published: January 2023

Since the introduction of research assessment systems at institutional level in the 1980s, the ongoing debate on the roles and functions of peer review and bibliometrics has been vivid and lively. In the first part of the article, the main lines over time of this debate are traced, and a reflection on the epistemic functions of peer review and citations is proposed. In Italy, the first research assessment exercise (VTR) was based on peer review only, while the following ones (VQR) were based on different methods for bibliometric disciplines and non-bibliometric disciplines, namely bibliometric indicators and peer review. Starting from a data analysis on Italian publications, and using as a sample data from M-STO/08 (Archival science, bibliography and library science) area, the essay shows some trends and changes in publication habits in HSS. Conclusions open a perspective on revitalization of peer review as a solid qualitative method for research assessment.
Towards peer review as a group engagement
Authors: Bonaccorsi Andrea
Published: January 2023

I discuss from an economic perspective two of the most recent suggestions to reform the peer review system: (a) payment to referees; (b) ex post peer review. I show that strong economic arguments militate against these ideas.

With respect to payment to referees I use results from the economic analysis of prosocial behavior and the private production of public goods, which show that the supply of monetary incentives has the paradoxical effect of reducing the willingness of agents to collaborate, insofar as they substitute intrincic motivation with extrinsic motivation.

With respect to ex post peer review, I show that it fails to offer sufficient incentives to researchers, since it is anonymous, depersonalized, and weak in its marginal impact on publishing decisions. I take this argument to criticize the lack of theorizing, in the side of radical proponents of Open access, about the conditions for transition from the subscription model to the Open model. It is this lack of critical attention to economic arguments that has led to the unintended but dramatic outcome of a net increase in the cost of scientific publishing, as documented in very recent papers.

Finally, I advance a proposal for admitting payments to referees, but not as individuals but as groups of researchers. I offer this idea to open discussion.
Scholarly publishing and peer review in the Global South: the role of the reviewer
Authors: Lor Peter
Published: January 2023

Peer review is an integral part of contemporary scholarly publishing, especially journal publishing. Work submitted by scholars from all parts of the world is subjected to it. This includes submissions by scholars from the Global South, who wish to publish in “international” journals or in local journals which follow the same model. These authors may not be native English speakers and may be unfamiliar with the conventions of Western scholarship. Many of them conduct research and write their manuscripts under challenging circumstances. They may find it difficult to comply with the requirements of the journals to which they submit their articles. Their manuscripts quite often pose challenges to the peer reviewers. The purpose of this article is to provide some background on scholarly publishing in the Global South and the challenges those colleagues face, and to outline what this may mean for the role of the reviewer.
Global Trends in Knowledge Production and the Evolving Peer Review Process
Authors: Witt Steven
Published: January 2023

This essay thus seeks to provide further critique and clarity to the peer review process and the ways in which management of peer review is evolving. These changes occur within a context of massive growth in the knowledge production process: global trends, information technologies, and policies that encourage more people globally to take part in the research process. Associated with these global changes are stressors on the peer review process and particularly questions about who gets to be a peer reviewer and who has the right to produce knowledge under these processes.  Less a formal review and analysis of peer review across LIS, this essay takes the form of an autoethnographic narrative that that seeks to draw upon the researcher’s personal observations, experience, and reflections to critically examine changes to the peer review system that are taking place.
Peer review: a process undergoing a required transformation
Authors: Guerrini Mauro , Capaccioni Andrea , Morriello Rossana , Editorial Board
Published: January 2023

The peer review process is undergoing transformation; this raises a series of challenges, some of which are discussed by the authors of the articles of this issue. Is peer review really peer? Peer review is an activity not recognized for research evaluation. The choice of referees is by no means neutral; it must be contemplate the ethical aspects of the choice.
This issue is dedicated to Luigi Balsamo
Authors: Editorial Board
Published: January 2023

Luigi Balsamo was a librarian, a bibliographical superintendent, an AIB member, a professor of Bibliography, the editor of "La Bibliofilia", and an important international personality, especially in the Anglo-Saxon and Iberian area, author of numerous writings on public libraries and the history of books, including 'La bibliografia. Storia di una tradizione' (translated both in English and in Spanish). Less well known is his interest in poetry, which he cultivated from his youth. The liryc 'Autumn' is part of an unpublished collection, entirely private and hitherto jealously guarded within the family circle.
PENGARUH SUHU PENYEDUHAN TERHADAP EFEK DIURETIK TEH HIJAU PADA MENCIT JANTAN GALUR SWISS
Authors:   Program Studi Diploma III Farmasi Akademi Farmasi Indonesia Yogyakarta, Susilowati Agustina , Ramadhan Nur Karim Kusuma ,   Program Studi Diploma III Farmasi Akademi Farmasi Indonesia Yogyakarta
Published: January 2023

Tea (Camelia sinensis L.) is a beverage that is familiar to the community and is drunk by brewing it. Green tea contains chemicals such as polyphenols, tannins, steroids and flavonoids. This study aimed to determine the effect of temperature brewing of green tea in the diuretic effect of male swiss strain mice. This research is an experimental study with 25 mice which were divided into five groups, group I (CMC Na 1%), Group II (Furosemide dose 5.2 mg/KgBB), Group III,IV and V (green tea brewed at 50oC,70oC dan 90oC ) with a brewing time of 5- 15 minutes. Urine measurements were performed every 1 hour for 6 hours. Data analysis was carried out using the One-Way ANOVA test followed by the LSD test with a 95% confidence level. The results showed that the diuretic effect at a brewing temperature of 50oC was not significantly different (p> 0.05) with the diuretic effect at 70oC but the average volume of urine at 50oC was greater than 70oC. Diuretic effect at temperature 90oC was significantly different (p<0.05) compared to 50oC and 70oC. The diuretic effect of green tea can be optimal, if the brewed at a temperature of 50oC and 70oC for 5-15 minutes