bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sulfide Removal by Catalitic Oxidation From Rayon Waste
Authors: Wulansari Isma 
Published: February 2023

Catalytic oxidation of spent sulfidic caustic consist of SH- ion or NaHS compound by H 2 O2 in neutral or acidic solution to elemental sulphur may provide a convenient and economical method for the control of sulphide wastes and their associated odors at pulp, paper and textile industry. Oxidation of sulfide in rayon waste by hydrogen peroxide was investigated in the presence of ferric sulfate catalyst. Kinetic equations and activation energies of H 2 O2 and SH- ion to total sulphur and sulphate in rayon waste for catalytic oxidation reaction were calculated based on the experimental results. For the removal of sulfide from sulfide solution the most common process involves its catalytic oxidation to a more benign form sulfate. The rate of sulfidic catalytic oxidation was found higher at lower initial sulphide concentration and the rate of sulphide catalytic oxidation was found directly proportional to loading and hydrogen peroxide addition. Optimum total sulphide concentration was achieved when sulphide solutions in the presence of H 2 O 2 in the ratios SH-/H 2 O 2 1:4.2. The potential user of H 2 O 2 determine the optimal conditions for control of odor, corrosion and waste treatment cost due to sulfide consisting of sulphur ion, sulphate ion, etc. The catalytic oxidation of sulphides into sulphates by H 2 O 2 may be applied directly to aqueous wastes containing these odorants
Interpersonal Communication Of Teacher - Deaf Students In Online Learning
Authors: Lusiyana Annisa , Ramadhana Maulana Rezi 
Published: February 2023

In creating satisfying interactions, it requires interpersonal communication that goes both ways between teachers and deaf students in online learning. This study aims to find out how interpersonal communication occurs between deaf teachers and students in online learning which is studied using symbolic interaction theory in S Public Special Education School Bekasi Regency. This research used a qualitative research method by collecting data through interviews with twelve informants who were divided into key informants and supporting informants, namely six teachers and six deaf students of Public Special Education School Bekasi Regency with data analysis using ATLAS.ti software. The results show that there are three aspects of symbolic interaction in interpersonal communication carried out by deaf teachers and students in online learning, including 1) Mind, resulting in the theme of online learning situations, 2) Self, producing the theme of interaction with children, 3) Society, resulting in the theme of building interaction. These three aspects give rise to four categories, including technical barriers, non-technical barriers, interaction approach strategies, and providing support to children. This research can help provide information about interpersonal communication carried out by deaf teachers and students in online learning.
Peran Teknologi Informasi Dalam Keberhasilan Pendidikan Dan Pelatihan Di Bidang Pelayaran
Authors: Cahyadi Tri , Dina Mirianto Agus 
Published: February 2023

Penelitian ini bertujuan untuk menggambarkan Teknologi Informasi (TI) dapat digunakan untuk media pembelajaran dalam dunia pendidikan di bidang pelayaran yang struktur kurikulumnya hampir 70% adalah praktikum.Jenis penelitian ini merupakan penelitian deskriptif dengan studi kasus tempat penelitian Politeknik Pelayaran Surabaya. metode deskriptif adalah pencarian fakta dengan interpretasi yang tepat dengan beberapa tahapan yaitu 1) menganalisis gaya belajar taruna, 2) pemilihan model pembelajaran, 3) pemilihan media pembelajaran berbasis TI, 4) evaluasi respon taruna terhadap penggunaan media pembelajaran berbasis TI. Hasil penilitian menunjukan gaya belajar yang menjadi dominan gaya belajar taruna adalah kinestetik sebesar 36,9%, visual 25,6%, Auditori 18,2%, Global 14,9% dan Analitik 4,4%. Model pembelajaran cenderung pada model pembelajaran berbasis masalah (Problem Based Learning), hal ini disebabkan hampir 96% dosen melibatkan taruna dalam memecahkan masalah dengan mengintegrasikan berbagai kosep dan keterampilan dari berbagai disiplin ilmu. Media pembelajaran hampir 70% menggunakan laboratorium, simulator maupun bengkel untuk menunjang kegiatan belajar mengajar. Media pembelajaran e-learning, simulator dan game edukasi sudah dikembangkan mendapat respon positif taruna adalah 89%, artinya penggunaan media pembelajaran berbasis TI berdampak positif terhadap pembelajaran. Hasil belajar taruna diperoleh data taruna yang lulus kompetensi sebanyak 89 taruna dan tidak lulus kompetensi sebanyak 11 taruna, sehingga ketuntasan hasil belajar taruna adalah 89%. Berdasarkan hasil analisi data, dapat disimpulkan bahwa media pembelajaran berbasis TI di Politeknik Pelayaran Surabaya bekualitas baik dan sangat optimal digunakan dalam proses belajar mengajar
Persepsi Mahasiswa Keperawatan dalam Proses Pembelajaran dengan Metode Blended Learning Di Masa Pandemi Covid 19
Authors: A.Nurlaela Amin  , Amirullah  , Asri  
Published: February 2023

Covid 19 memberikan dampak besar pada semua elemen, khususnya di bidang pendidikan. Semua institusi di bidang pendidikan harus segera beradaptasi dalam mencapai pemilihan proses pembelajaran yang tepat untuk meningkatkan kualitas pembelajaran sehingga dapat efisiensi pembelajaran dapat tercapai. Salah satu alternatif agar proses pembelajaran tetap berjalan adalah model “Blended Learning”. Penelitian ini bertujuan untuk mengeksplorasi persepsi mahasiswa dalam proses pembelajaran dengan metode blended learning di masa pandemi covid 19. Penelitian ini menggunakan rancangan penelitian kualitatif dengan pendekatan fenomenologi. Pengumpulan data dilaksankan dengan cara indepth interview. Pengambilan sampel dilakukan dengan cara purposive sampling dengan jumlah 12 informan. Jenis instrument yang digunakan, yaitu : Focus Group Discussion (FGD) dan wawancara. Hasil penelitian teridentifikasi enam tema, yaitu: 1) Kelebihan pembelajaran blended learning, 2) Kekurangan pembelajaran blended learning, 3) Proses praktik laboratorium dan klinik, 4) Proses evaluasi, 5) Hasil belajar dan 6) Harapan mahasiswa.. Hasil penelitian menunjukan bahwa selama mengikuti proses blended learning, informan menyampaikan beberapa persepsi dalam proses tersebut. Adapun beberapa hal yang menjadi kelebihan dan kekurangan dalam proses blended learning, dari hasil tersebut semua informan berharap agar pembelajaran tatap muka segera dilaksanakan dengan memperhatikan aturan/keselamatan mengikuti pembelajaran selama pandemic covid 19. Diharapkan agar pihak perguruan tinggi dapat mengevaluasi proses blended learning, lebih memperhatikan kesiapan dalam pelaksanaan blended learning serta meningkatkan antusias/motivasi informan agar lebih semangat dalam mengikuti blended learning.
Prioritizing Diverse Observations or Issues from Safety Reviews at Nuclear Power Plants According to Possible Safety Impacts
Authors: Vrbanić Ivan , Bašić Ivica 
Published: February 2023

Being a facility with potential for radioactive release, any nuclear power plant (NPP) is, over its operating life time, permanently subject to numerous safety reviews with different scopes and objectives. The reviews may be initiated and implemented by various stakeholders, including regulators, utilities or industry. Some of them are, by their nature, general and extensive in terms of different safety areas or safety attributes which are covered. An example of such a review is a Periodic Safety Review (PSR) which is promoted by the International Atomic Energy Agency (IAEA) and a number of national safety authorities in Europe and worldwide. The others may, depending on the objective, be targeted at particular safety area (e.g., ageing management or equipment qualification or safety analyses). Both of the mentioned cases (single general review or multiple targeted reviews over a time period) can generate an inventory of observations (“findings”) or “issues” which need to be addressed but may be very different in their nature and implications, as well as in benefits or resources associated with their resolutions. For some issues a resolution may be straightforward. For others, it may require a feasibility study and identification of options for possible resolution. Also, in some cases the resolution is simply a “must” (e.g., discrepancy from licensing basis) while in some other cases it may be a matter of balance (e.g., effectiveness of maintenance program). Furthermore, while some of the issues may be directly related to operational safety (e.g., non-compliance with single failure criterion or aging-related degradation of safety features), for some others the link to operational safety may not be explicit (e.g., comparison of safety bases against the newly emerging methodologies or issues observed with regard to so called “soft factors”).
The paper discusses types of different observations or issues which may come from general or targeted safety reviews and outlines some basic principles for their comparison and prioritizing with regard to possible safety impacts, which is many times needed for the purpose of developing an action plan for safety improvements.
RELAP5/mod3.3 Analysis of Natural Circulation Cooldown with One Inactive Loop for Nuclear Power Plant Krško (NEK)
Authors: Špalj Srđan , Cizel Franc 
Published: February 2023

The paper presents the RELAP5/mod3.3 analysis of natural circulation cooldown with one inactive loop for Nuclear Power Plant Krško (NEK). The aim of the analysis is to determine the limiting cooldown rates during operator recovery actions to minimize the effect of flow stagnation in inactive loop. Since this is typical asymmetrical transient, the RELAP5/mod3.3 NEK model with split reactor vessel model was developed (models of the reactor vessel and core were axially divided in two parts) and used for this analysis. The several transients of cooldown, with one inactive loop, for different time after shutdown (different decay heat) were performed. The extreme conservative assumptions were applied for the analyses, i.e. the complete loss of feedwater (FW) and auxiliary feedwater (AF), including turbine driven (TD) AF pump, and the cooldown has started after the SG is completely dry (inactive). The analyses show that the cooldown rate shall be significantly reduced, and, based on the results the procedure ES-0.2 “Natural Circulation Cooldown” was modified.
Resiliencia en adolescentes expuestos a contextos de riesgo psicosociales: una revisión sistemática
Authors: Apaza Gomez Fanny , Villanera Zelaya Verónica , Alarcon Mamani Dafne Marleny , Zúñiga Vásquez María Emma , Maquera Maquera Yuselino 
Published: February 2023

La resiliencia en la actualidad, implica superar los efectos negativos producidos por la exposición al riesgo mediante un conjunto de estrategias positivas socioemocionales que promueven el fortalecimiento, afrontamiento y empoderamiento del autoestima. El estudio tuvo como objetivo analizar sistematicamente las investigaciones sobre resiliencia en los adolescentes expuestos a riesgos psicosociales. La metodología asumida bajo los parámetros de revisión sistemática sobre resiliencia en adolescentes expuestos a contextos de riesgos psicosociales en los últimos cinco años, se consideró desde el año 2017 al 2021. Los hallasgos encontrados se direccionan en la resiliencia de adolescentes frente a situaciones de riesgos internos/familiares (n=4) y riesgos externos/educativo-social (n=5), y para determinar el nivel de resiliencia el instrumento de mayor uso es Escala de Resiliencia de Wagnild y Young (1993) para medir la resiliencia en los adolescentes con un alfa de Cronbach de .89. Se concluye que, en la mayoría de las investigaciones analizadas, los niveles de resiliencia de los adolescentes están en alto y medio. A pesar de los altos índices de problemas sociales a nivel familiar y social, los adolescentes desarrollan capacidades para superar esas situaciones adversas y mirar el futuro con optimismo.
Empresas Colaborativas de Turismo Receptivo, bajo la Plataforma Airbnb, Trujillo
Authors: Castellares Jhonson Carolina Esther , Grados Vásquez Martin Manuel , Valiente Saldaña Yoni Mateo , Diaz Valiente Frank Alexander , García Crúzate Eduardo Daniel , Alamo Barreto José Gabriel 
Published: February 2023

El presente trabajo tiene por propósito determinar la influencia de las empresas colabo-rativas y el turismo receptivo, bajo la plataforma Airbnb, Trujillo; dicho estudio se basó en los métodos del diseño no experimental de tipo correlacional descriptivo, para ello se contó con 50 propietarios de inmuebles de Trujillo que al menos una vez anunciaron y arrendaron sus propiedades bajo la plataforma Airbnb en los últimos 6 meses
Por el carácter de la investigacion se escogió como muestra a la misma población, los datos fueron recopilados mediante técnicas e instrumentos de cuantitativos. Luego de recopilar los datos estos fueron procesados con instrumental estadístico y el programa SPSS v. 27 y se arribó a las siguientes conclusiones: Mediante el estadígrafo Rho de Spearman (0.851, que indica alta correlación) ha quedado establecida la correlación exis-tente entre las empresas colaborativas y el turismo receptivo bajo la plataforma Airbnb en la ciudad de Trujillo, 2022
Respuesta del café robusta (Coffea canephora) Pierre ex A. Froehner a diferentes manejos de sombra y fertilización, en el sur de Chiapas, México
Authors: Cerda-Ocaranza Mauricio Gerardo , Salgado-Mora Marisela Guadalupe , Aguirre-Cadena Juan Francisco , Chilel Pérez Nixon David 
Published: February 2023

Con el objetivo de evaluar el efecto del manejo de sombra en la producción de café Robusta (Coffea canephora), estimar la respuesta comparativa de la fertilización y evaluar el efecto de la interacción entre el manejo de sombra (PG) y la fertilización (PCH). El estudio se realizó en el ejido Unión Roja, municipio de Cacahoatan, Chiapas, localizado a una altitud de 730 msnm. Se utilizó un diseño experimental completamente al azar con arreglo en parcelas divididas con 6 tratamientos y 10 repeticiones con lo que se obtuvo 60 unidades experimentales. Los tratamientos fueron tres manejos de sombra (PG), (2 desombres, 1 desombre y 0 desombre); y fertilización (PCH), (con y sin fertilizante). Se midieron 8 variables, vigor, numero de bandolas productivas, numero de bandolas potenciales, longitud de bandolas productivas, longitud de bandolas potenciales, área foliar, peso en uva y peso de café cerezo.
El mejor resultado para vigor fue el tratamiento de 2 desombres con fertilizante, el mayor número de bandolas productivas fue 2 desombres con fertilizante, el mayor número de bandolas potenciales se presentó en dos desombres y hubo una interacción con y sin fertilizante, el mejor resultado de longitud de bandolas productivas fue 2 desombres con fertilizante teniendo interacción el testigo sin desombre con y sin fertilizante, la mayor longitud de bandolas potenciales lo mostro 2 desombres con fertilizante teniendo interacción en cero desombre y 2 desombres, la mayor área foliar lo mostro 0 desombres con fertilizante, el mejor resultado de peso uva lo mostro 2 desombres con fertilizante.
Estrés laboral y resiliencia en profesionales de enfermería en el hospital rezola de cañete en pandemia covid-19, LIMA 2022
Authors: Ccorahua Rodriguez Dennys Lisbeth , Arévalo Marcos Rodolfo 
Published: February 2023

Objetivo general: Determinar la relación entre estrés laboral y resiliencia en profesionales de enfermería en el Hospital Rezola de Cañete en pandemia COVID-19, Lima 2022. Materiales y métodos: enfoque cuantitativo, diseño no experimental, nivel descriptivo y correlacional. El método utilizado fue hipotético deductivo. La población estuvo integrada por 82 profesionales de enfermería en el Hospital Rezola de Cañete en pandemia COVID-19, durante el mes de mayo del 2022. La muestra fue censal. El tipo de muestreo fue no probabilístico, intencional. Resultados: la edad promedio fue 38,82 años. En cuanto al sexo, el 80,5%(n=66) fueron del sexo femenino. En cuanto al estado civil, el 37,8%(n=31) fueron solteros. El estrés en enfermería fue medio en el 45,1%(n=37), seguido de 42,7%(n=35) y alto en el 12,2%(n=10). En el nivel de resiliencia, el 78%(n=64) fue medio, seguido de 12,2%(n=10) baja y 9,8%(n=8) alto. Hubo asociación significativa entre el estrés y la resiliencia (p=0,000), dimensión física (p=0,000), dimensión psicológica (p=0,000) y dimensión social (p=0,000). Conclusiones: existe relación significativa entre estrés laboral y resiliencia en profesionales de enfermería en el Hospital Rezola de Cañete en pandemia COVID-19, Lima 2022
Interactions between the Jet and Disk Wind in Nearby Radio-intermediate Quasar III Zw 2
Authors: Wang Ailing , An Tao , Guo Shaoguang , Mohan Prashanth , Chamani Wara , Baan Willem A. , Hovatta Talvikki , Falcke Heino , Galvin Tim J. , Hurley-Walker Natasha , Jaiswal Sumit , Lahteenmaki Anne , Lao Baoqiang , Lv Weijia , Tornikoski Merja , Zhang Yingkang 
Published: February 2023

Abstract
Disk winds and jets are ubiquitous in active galactic nuclei (AGN), and how these two components interact remains an open question. We study the radio properties of the radio-intermediate quasar III Zw 2. We detect two jet knots, J1 and J2, on parsec scales that move at a mildly apparent superluminal speed of 1.35c. Two γ-ray flares were detected in III Zw 2 in 2009–2010, corresponding to the primary radio flare in late 2009 and the secondary radio flare in early 2010. The primary 2009 flare was found to be associated with the ejection of J2. The secondary 2010 flare occurred at a distance of ∼0.3 pc from the central engine, probably resulting from the collision of the jet with the accretion disk wind. The variability characteristics of III Zw 2 (periodic radio flares, unstable periodicity, multiple quasiperiodic signals and the possible harmonic relations between them) can be explained by the global instabilities of the accretion disk. These instabilities originating from the outer part of the warped disk propagate inward and can lead to modulation of the accretion rate and consequent jet ejection. At the same time, the wobbling of the outer disk may also lead to oscillations of the boundary between the disk wind and the jet tunnel, resulting in changes in the jet–wind collision site. Object III Zw 2 is one of the few cases observed with jet–wind interactions, and the study in this paper is of general interest for gaining insight into the dynamic processes in the nuclear regions of AGN.
MOMO. VI. Multifrequency Radio Variability of the Blazar OJ 287 from 2015 to 2022, Absence of Predicted 2021 Precursor-flare Activity, and a New Binary Interpretation of the 2016/2017 Outburst
Authors: Komossa S. , Kraus A. , Grupe D. , Gonzalez A. G. , Gurwell M. A. , Gallo L. C. , Liu F. K. , Myserlis I. , Krichbaum T. P. , Laine S. , Bach U. , Gómez J. L. , Parker M. L. , Yao S. , Berton M. 
Published: February 2023

Abstract
Based on our dedicated Swift monitoring program, MOMO, OJ 287 is one of the best-monitored blazars in the X-ray–UV–optical regime. Here, we report results from our accompanying, dense, multifrequency (1.4–44 GHz) radio monitoring of OJ 287 between 2015 and 2022 covering a broad range of activity states. Fermi γ-ray observations were added. We characterize the radio flux and spectral variability in detail, including discrete correlation function and other variability analyses, and discuss its connection with the multiwavelength emission. Deep fades of the radio and optical–UV fluxes are found to occur every 1–2 yr. Further, it is shown that a precursor flare of thermal bremsstrahlung predicted by one of the binary supermassive black hole (SMBH) models of OJ 287 was absent. We then focus on the nature of the extraordinary, nonthermal, 2016/2017 outburst that we initially discovered with Swift. We interpret it as the latest of the famous optical double-peaked outbursts of OJ 287, favoring binary scenarios that do not require a highly precessing secondary SMBH.
Study of Variability in Long-term Multiwavelength Optical Lightcurves of Blazar AO 0235+164
Authors: Roy Abhradeep , Gupta Alok C. , Chitnis Varsha R. , Cellone Sergio A. , Raiteri Claudia M. , Romero Gustavo E. , Wiita Paul J. , Chatterjee Anshu , Combi Jorge A. , Liao Mai , Sarkar Arkadipta , Villata Massimo 
Published: February 2023

Abstract
We present a long-term and intraday variability study of optical multiwaveband (U
BV
RI) data from the blazar AO 0235+164 collected by various telescopes for ∼44 yr (1975–2019). The blazar was found to be significantly variable over the years in all wave bands with a variation of about 6 mag between its low and active states. The variations in the different wave bands are highly correlated without any time lag. We did not observe any significant trend in color variation with time, but we observed a bluer-when-brighter trend between the B − I color index and the R magnitude. Optical BV
R-band spectral energy distributions always show a convex shape. Significant intraday variability was frequently seen in the quasi-simultaneous observations of AO 0235+164 made on 22 nights in the R and V bands by the CASLEO and CAHA telescopes during 1999–2019. We also estimated a central supermassive black hole mass of 7.9 × 107
M
⊙ by analyzing the broad Mg ii emission line in AO 0235+164's spectrum. We briefly explore the probable physical scenarios responsible for the observed variability.
The Bride of Christ with a hellish existence on earth: Insights from Eboni Turman, the black church and black liberation theology
Authors: Mdingi Hlulani M. 
Published: February 2023

This research is based on the reading of Eboni Turman’s work that focuses on body politics, especially through a theological paradigm. The study confirms that the body is a theological problem, and the extent of the problem stretches to the annals of Christian theology to the present, especially in light of racism, sexism and capitalism. The study will engage black womanist eschatology to draw from the rich well of seeing how the experience of black women gives new meaning to understanding the presence and coming of God through wrestling and struggle. The study will use the black church, especially in the United States of America (USA), to dialogue with. The researcher has previously done work on the black church in the USA and South Africa, as well as work on the contribution of African womanist theologians. Thus, the study uses the USA purely because of Eboni Turman’s discussion on the body as a theological problem.Contribution: The study seeks to invite men and the black church to remember the black sacred dance from old, which has remained with black women as they continue to dance, thus critiquing those who are out of rhythm and need it now more than ever.