bluuebunny/crossref_metadata_2025 huggingface dataset:
Fisheries Stakeholder Perspective Quantification on Freshwater Fish Cultivation Diversification
Authors:   Program Studi Akuakultur, Sekolah Tinggi Perikanan dan Kelautan Matauli, Arsanti Arsanti , Firmansyah Rodhi ,   Program Studi Akuakultur, Sekolah Tinggi Perikanan dan Kelautan Matauli, Bagariang Ramona Indah , Adityamada Ipan , Pulungan Rizky Ondolan ,   Mahasiswa/i Sekolah Tinggi Perikanan dan Kelautan Matauli Jl. K.H. Dewantara No.1 Pandan, Kabupaten Tapanuli Tengah, Sumatera Utara
Published: December 2021

There is still a different perspective on the fishery aspect of the importance of diversifying the fish farming business in freshwater, causing a low quantity of aquaculture entrepreneurs as well as the diversity of fish cultivation businesses in freshwater. Therefore, a reference basis is needed through a study on the perspective of these stakeholders to determine an appropriate cultivation business strategy to be implemented. The study used interview methods and questionnaires for 40 stakeholder respondents in the field of fisheries and analyzed with Analysis Hierarchy Process (AHP). The results show that land suitability, supportive laws and regulations, market demand, public perception/perspective, and adequate availability of human resources are the main contributing factors in the expansion of the freshwater fish farming business on Sibundong river. The actors expected by the community in the expansion of fish aquaculture business are Bappeda, Freshwater Seed Hall, Marine and Fisheries Affairs and Government of Central Tapanuli, and Matauli College of Fisheries and Marine Science. All of them can be achieved by coordinating between relevant agencies intensively, conducting training/making pilot pools of freshwater cultivation, improving the distribution channels of freshwater aquaculture fisheries, conducting multi-species cultivation, and conducting environmentally-minded cultivation.
Factors of Coastal Tourism Management with DPSIR Analysis (Case Study: Tanjung Lesung Special Economic Zone, Pandeglang Regency, Banten Province)
Authors:   Departemen of Urban and Regional Planning, Faculty of Engineering, Pakuan University, Mulyawati Lilis Sri ,   Graduate School of Coastal and Marine Resource Management, Departemen of Aquatic Resource Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Adrianto Luky , Soewandi Kadarwan , Susanto Handoko Adi ,   Graduate School of Coastal and Marine Resource Management, Departemen of Aquatic Resource Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University
Published: December 2021

Tourism in general is often seen as an opportunity to promote economic and social development, as well as coastal tourism. Coastal tourism activities are also a driving force that can affect ecosystem structures and processes and reduce existing resources on the coast. The research aims to manage tourism coastal areas, both mainland and waters, therefore integrated zone development and sustainable between land and water can be realized. DPSIR analysis (Drivers, Pressure, State, Impact, Response) is a descriptive study with primary and secondary data obtained from respondents (tourist, community, expert) and literature review. The analysis was carried out with qualitative analysis and to test the results of the literature review and the results of field observations, an expert survey was carried out so that the factors in the management of coastal tourism in an area designated as a tourism zone were obtained. The dominant factors resulting from the DPSIR analysis can be concluded as influencing factors in the management of coastal tourism so that they will provide solutions for the realization of an ecologically, socially, and economically sustainable tourism area plan. Suggestions to managers, both private and government, to keep the environment in order to create a sustainable tourist area.
RETRACTION: The Impact of Tourism Development on Economic Condition of Coastal Community in Binyeri Village, Yendidori District, Biak Numfor Regency
Authors:   Engineering Faculty, Cenderawasih University, Kamp Wolker Street, Jayapura, Papua, Sari Annisa Novita , Buiney Ines C. ,   Engineering Faculty, Cenderawasih University, Kamp Wolker Street, Jayapura, Papua
Published: December 2021

RETRAKSI: Sari, A. N and I.C. Buiney. (2020). The Impact of Tourism Development on Economic Condition of Coastal Community in Binyeri Village, Yendidori District, Biak Numfor Regency. ECSOFiM: Economic and Social of Fisheries and Marine Journal. 08(01): 138-150. http://dx.doi.org/10.21776/ub.ecsofim.2020.008.01.11 . This article has been retracted by the publisher based on the following reason: The editor believes the author violated publication ethics. The author published the same work in two journals. The co-author acknowledges her author's member mis coordinated to submit the same manuscript to another magazine. This article also has published in the http://www.gjesrm.com/June-2020.html or http://www.gjesrm.com/Issues%20PDF/Archive-2020/June-2020/1.pdf. This journal requires authors to declare that their work is original and has not been published or considered by another journal. This article is a serious scientific publishing misuse. The scientific community strongly disapproves of this, and the journal apologizes to readers for not catching it during submission.
Mediating Medieval Mystical Literature in Interwar Belgium: The Histoire Croisée of Hadewijch’s ‘First Vision’ in the Periodical Hermès (1933–39)
Authors: Nuyts Tijl , Fraeters Veerle
Published: December 2021

In a context in which various artistic groups resorted to periodicals to stage their public appearance, the editors of the Brussels-based magazine Hermès: Revue trimestrielle d'études mystiques et poétiques (1933–39) mobilized Middle Dutch mystical literature to carve out a space for themselves in the cultural scene of interwar Belgium. Drawing on methods and concepts of transfer studies and research into ethos construction, this article analyses the transfer strategies underpinning the publication of the French translation of the ‘First Vision’ of the Middle Dutch mystic Hadewijch (c. 1240), with which Hermès programmatically opened its inaugural volume. The analysis uncovers a complex histoire croisée which involved confrontations, both collaborative and conflictual, between Hermès and two very different groups of cultural actors: the circle of Brussels Surrealists, with whom the editors of Hermès shared a history, and the Catholic philologists of the Ruusbroecgenootschap [Ruusbroec Society], who equally sought to disseminate Middle Dutch mystical texts to a wider public, albeit with very different goals.
An Impossible Task? Reconciling Europeanism and National Popular Culture in Caliban (1947–51)
Authors: Reynes-Delobel Anne
Published: December 2021

A kind of hybrid between high-profile political and literary periodicals and successful popular book digests targeted at a mass audience, the French magazine Caliban (1947–51) both tried to adjust to a fast-changing global marketplace and to defend a form of cultural legitimacy based on national claims against globalist domination. This article traces the evolution of the magazine’s editorial venture in relation to questions connected to the issues of modernity and mobility. In particular, it aims at examining Caliban’s implacable ‘anti-digest’ stance.
Planning Virtual Conferences in the Humanities: A Detailed Look at the 9th International ESPRit Conference
Authors: Bachmann Christian A. , Ramtke Nora
Published: December 2021

In June 2021, the DFG Research Unit 228 'Journal Literature' organized the 9th International Conference of the European Society for Periodical Research (ESPRit) on the topic of ‘Periodical Formats in the Market: Economies of Space and Time, Competition and Transfer’. On behalf of the Research Unit, a team from the Ruhr University Bochum (RUB) was responsible for planning and carrying out the event, in coordination with the ESPRit Committee. As the COVID-19 pandemic spread in Europe during the Spring of 2020, the conference team agreed to go virtual with the conference, due to the foreseeable legal and logistical difficulties in planning and carrying it out in person. From the outset, planning the virtual conference was flanked by an intensive process of reflection in which the conference team reviewed and adapted its objectives as well as the methods and processes required to achieve these goals. This process of reflection was significantly more intensive than is the case with on-site conferences, which are based on existing experience and logistical support from the host institutions. The experiences and insights gained are shared in this report in order to assist in planning future conferences.
Review of David Finkelstein, ed., The Edinburgh History of the British and Irish Press: Expansion and Evolution, 1800–1900 (2020)
Authors: Prado Huggins Sofia
Published: December 2021

Review of David Finkelstein, ed., The Edinburgh History of the British and Irish Press: Expansion and Evolution, 1800–1900 (2020)
Review of Faith Binckes and Carey Snyder, eds, Women, Periodicals, and Print Culture in Britain, 1890s–1920s: The Modernist Period (2019)
Authors: Lee Sze Wah Sarah
Published: December 2021

Review of Faith Binckes and Carey Snyder, eds, Women, Periodicals, and Print Culture in Britain, 1890s–1920s: The Modernist Period (2019)
Review of Andreas Beck, Nicola Kaminski, Volker Mergenthaler, and Jens Ruchatz, eds, Visuelles Design: Die Journalseite als gestaltete Fläche / Visual Design: The Periodical Page as a Designed Surface (2019)
Authors: Martin Alison E.
Published: December 2021

Review of Andreas Beck, Nicola Kaminski, Volker Mergenthaler, and Jens Ruchatz, eds, Visuelles Design: Die Journalseite als gestaltete Fläche / Visual Design: The Periodical Page as a Designed Surface (2019)
Review of Joanne Shattock, ed., Journalism and the Periodical Press in Nineteenth-Century Britain (2017/2019)
Authors: Morton John
Published: December 2021

Review of Joanne Shattock, ed., Journalism and the Periodical Press in Nineteenth-Century Britain (2017/2019)
Исследование параметров самосфокусированного электронного пучка, выведенного за анод вакуумного диода
Authors: Олешко В.И. , Nguyen V.V.
Published: December 2021

The parameters of a high-current electron beam extracted from the self-focusing zone through a hole in the anode into a vacuum chamber are investigated. The beam parameters were determined from the measurement of the spatial distribution of destruction and glow arising in polymethyl methacrylate samples installed at different distances from the anode (electron beam autographs). The formation of two electron beams - a self-focused with a high energy density, propagating along the axis of the cone facing the base to the anode with an apex angle of ~ 7º and a high-energy beam of low density, propagating in a hollow truncated cone and surrounding self-focused, was found. The oscillograms of the current and the energy of the electron beams were measured.
Скорость горения порошкообразного пористого кремния в условиях ограниченного пространства
Authors: Савенков Г.Г. , Козачук А.И. , Побережная У.М. , Фрейман В.М. , Зегря Г.Г.
Published: December 2021

The method of determination combustion rate of powdered porous silicon with limited space is presented. The values of the combustion rates of porous silicon are close to the values of the rates of explosives.
Ламинарный хаос в связанных системах с запаздыванием
Authors: Кульминский Д.Д. , Пономаренко В.И. , Прохоров М.Д.
Published: December 2021

The possibility of the existence of laminar chaos in coupled time-delayed feedback systems is investigated. The cases of unidirectional and mutual coupling of time-delay systems are considered. It is shown for the first time that laminar chaos can exist not only in a system with a variable delay time, but also in a system with a constant delay time, if it is coupled with a system in the regime of laminar chaos.
Механизм роста монослоя на верхней грани Ga-каталитических нитевидных нанокристаллов GaAs и GaP
Authors: Корякин А.А. , Еремеев Ю.А. , Федина С.В. , Федоров В.В.
Published: December 2021

The growth mechanism of monolayer on the top facet of Ga-catalyzed GaAs and GaP nanowires is investigated. Within the framework of a theoretical model, the maximal monolayer coverage due to the material in the catalyst droplet, the nanowire growth rate and the content of group V atoms in the droplet are found depending on the growth conditions. The estimates of the phosphorus re-evaporation coefficient from neighboring nanowires and substrate are obtained by comparing the theoretical and experimental growth rate of Ga-catalyzed GaP nanowires.
Усиление гидрофобных свойств структур ZnO золотым покрытием
Authors: Муслимов А.Э. , Каневский В.М.
Published: December 2021

The effect of enhancement the hydrophobic properties of the ensemble of micro- and nanostructures ZnO as a result of coating with gold was discovered. For the first time, it has been shown that coating the ensemble with a micro- and nanoparticle ZnO layer of gold leads to a sharp increase in the wetting edge angle from 145 to 168 ° (water drop volume 5 mm3) and a decrease in the hydrophobicity/hydrophilicity transition time under ultraviolet irradiation. Keywords: ZnO, gold, superhydrophobic.
Automated Clinical Practice Guideline Recommendations for Hereditary Cancer Risk Using Chatbots and Ontologies: System Description
Authors: Ritchie Jordon B , Frey Lewis J , Lamy Jean-Baptiste , Bellcross Cecelia , Morrison Heath , Schiffman Joshua D , Welch Brandon M
Published: December 2021

Background

Identifying patients at risk of hereditary cancer based on their family health history is a highly nuanced task. Frequently, patients at risk are not referred for genetic counseling as providers lack the time and training to collect and assess their family health history. Consequently, patients at risk do not receive genetic counseling and testing that they need to determine the preventive steps they should take to mitigate their risk.

Objective

This study aims to automate clinical practice guideline recommendations for hereditary cancer risk based on patient family health history.

Methods

We combined chatbots, web application programming interfaces, clinical practice guidelines, and ontologies into a web service–oriented system that can automate family health history collection and assessment. We used Owlready2 and Protégé to develop a lightweight, patient-centric clinical practice guideline domain ontology using hereditary cancer criteria from the American College of Medical Genetics and Genomics and the National Cancer Comprehensive Network.

Results

The domain ontology has 758 classes, 20 object properties, 23 datatype properties, and 42 individuals and encompasses 44 cancers, 144 genes, and 113 clinical practice guideline criteria. So far, it has been used to assess >5000 family health history cases. We created 192 test cases to ensure concordance with clinical practice guidelines. The average test case completes in 4.5 (SD 1.9) seconds, the longest in 19.6 seconds, and the shortest in 2.9 seconds.

Conclusions

Web service–enabled, chatbot-oriented family health history collection and ontology-driven clinical practice guideline criteria risk assessment is a simple and effective method for automating hereditary cancer risk screening.
Objective Measurement of Hyperactivity Using Mobile Sensing and Machine Learning: Pilot Study (Preprint)
Authors: Lindhiem Oliver , Goel Mayank , Shaaban Sam , Mak Kristie J , Chikersal Prerna , Feldman Jamie , Harris Jordan L
Published: December 2021

BACKGROUND

Although hyperactivity is a core symptom of attention-deficit/hyperactivity disorder (ADHD), there are no objective measures that are widely used in clinical settings.

OBJECTIVE

We describe the development of a smartwatch app to measure hyperactivity in school-age children. The LemurDx prototype is a software system for smartwatches that uses wearable sensor technology and machine learning to measure hyperactivity. The goal is to differentiate children with ADHD combined presentation (a combination of inattentive and hyperactive/impulsive presentations) or predominantly hyperactive/impulsive presentation from children with typical levels of activity.

METHODS

In this pilot study, we recruited 30 children, aged 6 to 11 years, to wear a smartwatch with the LemurDx app for 2 days. Parents also provided activity labels for 30-minute intervals to help train the algorithm. Half of the participants had ADHD combined presentation or predominantly hyperactive/impulsive presentation (n=15), and half were in the healthy control group (n=15).

RESULTS

The results indicated high usability scores and an overall diagnostic accuracy of 0.89 (sensitivity=0.93; specificity=0.86) when the motion sensor output was paired with the activity labels.

CONCLUSIONS

State-of-the-art sensors and machine learning may provide a promising avenue for the objective measurement of hyperactivity.
Traffic Sign Detection and Recognition using Image Processing
Authors: Sheikh Mr. Mohammad Shabbir
Published: December 2021

Abstract: Now a days, automobiles became most convenient mode of transportation for everyone. As we know one of the most important functions, TSDR has become a popular research . It primarily involves the use of vehicle cameras to collect real- time road pictures and then recognize and identify traffic signs seen on the road, therefore delivering correct data to the driving system. With the advancement of science and technology, an increasing number of scholars are turning to deep learning technology to save time in traditional processes. From the training samples, this model can learn the deep features inside the autonomously. The accuracy and great efficiency of detection and identification are the subject of this essay. A deep convolution neural network algorithm is proposed to train traffic sign training sets using Caffe[3], an open-source framework, in order to obtain a model that can classify traffic signs and learn and identify the most critical of these traffic sign features, in order to achieve the goal of identifying traffic signs in the real world. Keywords: Traffic sign, Segmentation, Gabor filter, Traffic Sign Detection and Recognition (TSDR)
Retrieval Files in Business Objects using Cloud Collaborative E-business
Authors: Parbat Tanmayee
Published: December 2021

Abstract: Everything stored on the cloud could potentially be a knowledge source used for e-business. Given learners' profiles, desires and feedback on what they have already learned, a new form of personalized e-business emerges, namely Cloud collaborative E-business (CeL). CeL should be able to choose from structured to totally unstructured business material but needs to make them useful for each individual. Existing metadata standards cannot facilitate composition of personalized business paths as a series of business objects. In this paper, we present the structure of CeL Business Objects (CeLLOs), which include an additional set of metadata suitable for each phase of CeL development. Keywords: Cloud collaborative E-business, computing for Education, Electronic Business
Static Structural Analysis of Different Materials for Connecting Rod
Authors: Sivadas Sumeet
Published: December 2021

Abstract: Connecting Rods are an important and irreplaceable part of IC Engines. It is responsible for converting the reciprocating motion of the piston into the rotary motion of the crankshaft. During this process, the connecting rod is subjected to various loads. Therefore, the materials used for connecting rod are also very important. In this paper, a static structural analysis of a connecting rod made of 5 different materials: Forged Steel, Carbon Steel, Stainless Steel, Grey Cast Iron and Titanium Alloy are compared. The connecting rod is analyzed only for the axial compressive load and not the axial tensile load because the tensile load is very much lesser than the compressive load. The connecting rod’s model is developed in FUSION 360 software and then imported to and analyzed using Finite Element Method in the ANSYS 2021 WORKBENCH software. The equivalent stress, total deformation along with the factor of safety for all the materials is found and compared in the analysis and all the results are shown with the help of images and graphs. Keywords: Connecting Rod, FEA, ANSYS WORKBENCH, Structural Analysis, Forged Steel, Carbon Steel, Stainless Steel, Grey Cast Iron, Titanium Alloy.
Deep Learning Approach of Product Evaluation Using Comment Analysis
Authors: Mudasar Syed
Published: December 2021

Abstract: Digital reviews now play a critical role in strengthening global consumer communications and influencing consumer purchasing patterns. Consumers can use e-commerce giants like Amazon, Flipchart, Snap deal, Jio and others to share their experiences and provide real insights about the performance of a product to future buyers. The classification of reviews into positive and negative sentiment is required in order to derive relevant insights from a big set of reviews. Comment Analysis is a computer programme that extracts subjective data from text. Out of Various Classification models Deep Learning Approach of Product Evaluation Using Comment Analysis is to develop a model that uses AI technologies like Deep Learning to process thousands and millions of online reviews on a product in a split second of time and rate the products on a scale of 1-5 based on the user comments We have worked on two deep learning models based on Recurrent Neural Networks (RNN) and Graph Convolution Network (GCN). Keywords: LSTN, GCN, NLTK
Reducing Dimensionality in Remote Homology Detection
Authors: Dinesh S.
Published: December 2021

Abstract: Homology detection plays a major role in bioinformatics. Different type of methods is used for Homology detection. Here we extract the information from protein sequences and then uses the various algorithm to predict the similarity between protein families. SVM most commonly used the algorithm in homology detection. Classification techniques are not suitable for homology detection because theyare not suitable for high dimensional datasets. Soreducing the higher dimensionality is very important than easily can predict the similarity of protein families. Keywords: Homology detection, Protein, Sequence, Reducing dimensionality, BLAST, SCOP.
Lectura territorial de las acciones colectivas derivadas del descontento social en el Catatumbo
Authors:   Policía Nacional de Colombia, Zúñiga Ruiz Luis Fernando , Ortiz Arcos Zuly Andrea ,   Policía Nacional de Colombia, Aceros Sierra Carlos Gabriel ,   Policía Nacional de Colombia
Published: December 2021

En este capítulo se analizan las acciones colectivas derivadas del descontento social en la subregión del Catatumbo, a partir, de tres objetivos específicos, (1) describir sus factores, (2) identificar las necesidades, posiciones e interés e (3) identificar la respuesta institucional frente a las necesidades sociales para la gestión territorial. En este sentido, la información se recolectó aplicando encuestas a autoridades administrativas, academia, organismos de cooperación internacional y entes de orden nacional. Los resultados obtenidos permitieron concluir que las acciones colectivas son un medio para expresar el inconformismo que la comunidad tiene hacia las instituciones por la insatisfacción de necesidades, siendo el cumplimiento de las mismas la forma más efectiva de atender la movilización social. En este mismo sentido, estos resultados permitieron la integración de diversos saberes y experiencias institucionales, a través de un enfoque participativo, y de la construcción y posterior validación de una herramienta que permite el monito-reo de acciones colectivas y potenciales acciones violentas en el territorio.
REGIONAL VARIATION IN FLUID RESERVOIR THICKNESS, OXYGEN TRANSMISSIBILITY AND CORNEAL OEDEMA DURING SCLERAL LENS WEAR
Authors: Chukwuemeka Obinwanne Junior , Echendu Damian C. , D'Alva Brito dos Santos Isaura Ilorena , Onwuka Sharon , Agbonlahor Osazee
Published: December 2021

Purpose: To determine if regional variation in post lens fluid reservoir thickness (PLFT) during scleral lens wear leads to regional variation in oxygen transmissibility and corneal edema during 4 hours of non-fenestrated scleral lens wear.Methods: About 20 healthy subjects (mean age, 28.8 ± 4.2 years) were fitted with nonfenestrated rotationally symmetric scleral lenses. Anterior segment optical coherence tomography was used to measure cornea thickness before and after lens wear, PLFT 10 minutes and 4 hours after lens application, and scleral lens thickness (with the scleral lens in situ) 4 hours after scleral lens application. These measurements were limited to the central 6 mm and divided into three zones (central, mid-peripheral, and peripheral zones). In the mid-peripheral and peripheral zones, eight principal meridians were measured, generating 17 measurement points in total. Scleral lens thickness and PLFT measurements were corrected for optical distortions by a series of equations. Oxygen transmissibility was calculated by dividing the scleral lens oxygen permeability by the optically-corrected scleral lens thickness, taking into account the oxygen permeability of saline and fluid reservoir thickness.Results: A significant regional variation in PLFT (F = 12.860, P = 0. 012) was observed after 10 minutes of the lens application, PLFT was thickest and thinnest in the inferotemporal and the superonasal region of the peripheral zones( 322.6 ± 161.8 µm and 153.8 ± 96.4 µm, respectively); however, this variation was not statistically significant at 4 hours of scleral lens wear (F = 4.692; P = 0.073). Despite significant regional variation in oxygen transmissibility (F = 48.472; P = 0.001) and relatively low oxygen transmissibility through the scleral lens, induced corneal edema did not vary significantly in different regions (F = 3.346; P = 0.126). In the central corneal region, the induced corneal edema correlated moderately with PLFT (r = 0.468; P = 0.037) and oxygen transmissibility (r = -0.528; P = 0.017). This relationship was insignificant in the peripheral cornea.Conclusion: The inferotemporal peripheral region had the thickest PLFT and least oxygen transmissibility, and the superonasal region had the vice versa. Despite significant variation in PLFT and oxygen transmissibility initially, in healthy corneas, this variation does not seem to induce statistically significant regional variation in corneal edema. Increased central PLFT and decreased oxygen transmissibility moderately correlate with central corneal edema.
No Campus Life for Us: Personal Reflections of First-Year Students at a Malaysian University
Authors: Ibnu Ireena Nasiha , Zainodin Wan Hartini Wan , Din Faizah
Published: December 2021

The purpose of this qualitative study was to look into the online learning experiences of first-year communication and media students. The study was conducted by gathering 45 written reflection papers from first-year undergraduate students covering their opinions, challenges, and feelings about online learning. NVivo 12 was used to analyse the contents of these reflection papers. The findings of this reflective narrative study offer valuable insights into how first-year communication and media students perceive online learning classes in higher education, the challenges of working with new virtual classmates, the adjustment and role as student and daughters at home, as well as their mental health and emotional feelings towards online learning. Students learned vital lessons about time management, environmental awareness and independence as a result of these experiences. Students experienced anxiety and were demotivated as a result of the lack of face-to-face interaction and effective self-introduction with new peers. Most importantly, they were dissatisfied because they had lost out on the experiences of living on campus during their first year of study. Furthermore, this research looked into another component of the qualitative technique, which is a reflective method to study the first-year students’ experiences with online learning in a Malaysian public university, an insight that can be useful for both lecturers and students.
Critical Perspective Analysis of Higher Education Studies in the Online Mode – Emerging Challenges and Solutions
Authors: Sathwara Harshil , Joshi Archie , Saha Geetali
Published: December 2021

Many academic institutions that had previously hesitated to modify their old pedagogical method had to opt for completely online modules due to the COVID-19 global pandemic. This paper provides insight into the perception of students of higher education concerning the online mode of learning. Data was collected from 310 students pursuing different courses. A questionnaire, divided into 7 sections was administered including: general information of students, time management, understanding of course content, view of students on assignments and submissions, ease and comfort of study, skill development and motivation, and course satisfaction. The data was analyzed quantitative analysis. Results showed that 72.4% of students do not prefer the online platform for learning and this view is contributed by parameters like net connectivity, time, overall development of the candidate and evaluation of the course outcomes. Various parameters such as internet connectivity, parallel data users, unwanted anxiety, extra time, comfort, understanding of the concepts, interaction, information absorption and retainment, course evaluation and assignments, expense comparison, skill development, lecture participation and extracurricular growth were mentioned. It is suggested that an alternative to classroom learning must be used to maintain one's academic progress.
Global Existence and Temporal Decay of Large Solutions for the Poisson--Nernst--Planck Equations in Low Regularity Spaces
Authors: Zhao Jihong , Liu Xilan
Published: December 2021

We are concerned with the global existence and decay rates of large
solutions for the Poisson–Nernst–Planck equations. Based on careful
observation of algebraic structure of the equations and using the
weighted Chemin–Lerner type norm, we obtain the global existence and
optimal decay rates of large solutions without requiring the summation
of initial densities of a negatively and positively charged species is
small enough. Moreover, the large solution is obtained for initial data
belonging to the low regularity Besov spaces with different regularity
and integral indices for the different charged species, which indicates
more specific coupling relations between the negatively and positively
charged species.
Da Uranografia da época de Kardec à Astronomia moderna – 1a parte
Authors: Terini Ricardo
Published: December 2021

Allan Kardec procurou, em suas obras espíritas, apresentar os conceitos das ciências de sua época junto com os resultados de suas pesquisas no campo da ciência e da filosofia espírita. Após sua morte, e com o tempo, novas descobertas propiciaram a atualização dos conceitos científicos, em diversos campos. O presente artigo faz uma síntese das principais descobertas e teorias astronômicas desde o século XIX até a atualidade, a partir das informações históricas e científicas sobre o assunto inseridas por Kardec nas obras fundamentais do Espiritismo. Adicionalmente, tais dados são comparados às informações e instruções dadas pelos Espíritos consultados por Kardec e inseridas nessas obras sobre as questões do espaço universal, da formação e movimento da Terra, dos mundos, das estrelas e da Via Láctea, além da pluralidade dos mundos habitados.
Development and validation of chemistry learning videos as learning media in the era of the COVID-19 pandemic
Authors: Pimenta Sara Souza
Published: December 2021

Learning media, especially videos, are very effective in achieving learning objectives, especially during the COVID-19 pandemic. Therefore, this study aims to develop learning videos as learning media during the COVID-19 pandemic. The research was conducted using a development research approach from the Borg & Gall model. The developed product has good validity. Where the results of the content validation test by material experts show the CVR value in the range 0.75 – 0.95 (above the critical CVR value). The construct validity test results have a value in the range 0.75 – 0.95 so that it is included in the valid category. And lastly, the test results for student responses have percentage values in the range of 79% - 89% so that they are included in the interesting and very interesting category. Based on these results, the developed learning video can be used as a learning media solution during the COVID-19 pandemic.
Various ORSV infection symptoms on ceratorhiza induction in orchid plants
Authors: Panjaitan Mitha Valentina Treesya , Mahfut Mahfut , Handayani Tundjung Tripeni , Wahyuningsih Sri
Published: December 2021

Several types of orchids that are in great demand and cultivated by various groups are Phalaenopsis sp. and Dendrobium sp. Mycorrhizae are needed by orchid plants to complete their life cycle. This is because mycorrhizae are capable of symbiosis with the root system of the host plant so that the plant's capacity to absorb elements will increase. This study aims to determine the extent to which Ceratorhiza induction on Phalaenopsis amabilis and Dendrobium discolour orchids can suppress the symptoms of Odontoglossum ringspot virus (ORSV) infection. The method used in this study was a factorial completely randomized design (CRD) with 2 factors and 4 replications. The first factor is the type of orchid used, namely Phalaenopsis amabilis (A1) and Dendrobium discolour (A2), while the second factor is the type of administration of mycorrhizae, viruses, and mycorrhizal viruses. Observation of disease symptoms is done by looking at the symptoms that appear on leaves that have been infected with ORSV. The results showed that the symptoms that appeared in Phalaenopsis amabilis were in the form of mosaic, necrosis, leaf malformation, while in Dendrobium discolour were mosaic and necrotic. Ceratorhiza was not able to suppress the symptoms of disease infection because based on the results obtained; the treatment on orchids inoculated with mycorrhizae and viruses showed more severe symptoms compared to the treatment only inoculated with viruses increased response and Dendrobium discolours showed a decreased response in leaf length, width, and number. Meanwhile, in the root organ, Dendrobium discolour showed an increased response and Phalaenopsis amabilis showed a decreased response in root length and number of roots.
Evaluation of soil replacement and cement grout injection in soil settlement
Authors: Andriansyah Arief , Afriani Lusmeilia , Kusumastuti Dyah Indriana , Wahono Endro P.
Published: December 2021

This paper discusses the process of original soil stabilization in Trans Sumatra Bakauheni-Terbanggi Besar Toll Road Project Package 2 Sidomulyo-Kotabaru. The soil replacement process was conducted at approximately 24 kilometres along the toll’s main road. The original soil bearing capacity analysis stage was by performing a Dynamic Cone Penetrometer (DCP) and Sondir test to analyze the deep of hard soil. A soil replacement was carried out to replace the original soil with soil that has appropriate specification. the piling up process was conducted in stages, which has Sandstone in such of the layer. The research done about the landfill sample was retaken and collected at 68 points. The stockpile soil samples collection was then followed by the analysis which was conducted in the laboratory to find the soil bearing capacity. There are 4 types of bearing capacity parameters analyzed, namely specific gravity, water content, aggregate analysis (Sieve Analysis), and consistency limit (Atterberg Limit). Referring to it, then there was the classification of soil types according to AASHTO M145 & Casagrande Soil Classification System. A point that has settlement after soil replacement is STA 52+000. So, there need to add soil stabilization, that is cement grout injection. Researchers analyzed the soil settlement by interpretation method. Results showed that soil replacement and cement grout injection could decrease a soil settlement by about 15.07 cm to become 0.93 cm.
ESL Students’ Readiness for Self-Directed Learning in Improving English Writing Skills
Authors: Hafizah Adnan Nor , Sayadi Siti Shakirah
Published: December 2021

Self-directed learning among students, particularly at the upper secondary level, is still underexplored in Malaysia. Further understanding of ESL students’ readiness for self-directed learning in improving English writing skills is crucial to exploit the advantages of this learning method for their benefit. Thus, this study aimed to examine the levels of self-directedness among secondary school students and their readiness to apply self-directed learning in improving English writing skills through a survey design. A total of 50 ESL students in a secondary school responded to two sets of questionnaires that measured different variables in this research. The first questionnaire included a self-rating scale of self-directed learning, which consisted of awareness, learning strategies, learning activities, evaluation, and interpersonal skills. The second questionnaire contained questions about students’ readiness for self-directed learning in improving English writing skills. Sampling was done randomly without considering students’ academic level of English. The findings found that most students possessed a medium level of self-directedness with not much difference with the high-level ones. The study then revealed a positive relationship between students’ level of self-directedness and students’ readiness to incorporate self-directed learning in English writing skills. For instance, students with a high level of self-directedness scored higher in students’ readiness for self-directed learning in improving English writing skills than those with a low level of self-directedness. Future studies should consider self-directed learning strategies to promote lifelong effects of positive attributes towards learning experiences, such as discipline, attention, responsible, and creativity in planning learning objectives.
Skiptir félagslegur stuðningur á vinnustað máli? Tengsl félagslegs stuðnings, starfsánægju, eineltis og áreitni á vinnustað
Authors: Sigursteinsdóttir Hjördís , Karlsdóttir Fjóla Björk
Published: December 2021

Mikilvægt er að starfsfólki líði vel á vinnustaðnum enda verja flestir stórum hluta ævinnar þar. Vellíðan á vinnustað hefur áhrif bæði á lífsgæði starfsfólks sem og verðmætasköpun fyrirtækja og þjónustugæði stofnanna. Það eru ýmsir þættir í vinnuumhverfinu sem geta valdið vanlíðan hjá starfsfólki og er einelti og áreitni á vinnustað talin hafa neikvæð áhrif á starfsfólk og þar með starfsánægju. Félagslegur stuðningur á vinnustað er hins vegar talinn verndandi þáttur gegn neikvæðum þáttum í vinnuumhverfinu. Markmið þessarar rannsóknar var að skoða félagslegan stuðning á vinnustað meðal starfsfólks íslenskra sveitarfélaga og tengsl hans við starfsánægju, einelti og kynferðislega og kynbundna áreitni á vinnustað. Rannsóknin byggir á rafrænni spurningalistakönnun frá árinu 2019 meðal starfsfólks 13 íslenskra sveitarfélaga. Í heildina svöruðu 5.182 spurningalistanum að einhverju eða öllu leyti eftir þrjár ítrekanir, sem gefur 54% svarhlutfall. Mun fleiri konur en karlar eru þátttakendur í rannsókninni eða 82% en það kynjahlutfall endurspeglar vel kynjahlutfall starfsfólks sveitarfélaganna. Niðurstöðurnar sýna að félagslegur stuðningur mældist 4,1 á skalanum 1-5, hærri meðal kvenna en karla. Starfsánægja mældist einnig 4,1 og um 8% starfsfólksins hafði orðið yfir einelti á vinnustað og um 2% fyrir kynferðislegri áreitni og kynbundinni áreitni. Niðurstöðurnar sýna einnig að félagslegur stuðningur hafði jákvæð miðlungs sterk tengsl við starfsánægju starfsfólksins og neikvæð veik tengsl við einelti og kynferðislega og kynbundna áreitni á vinnustað. Álykta má út frá niðurstöðum rannsóknarinnar að félagslegur stuðningur vinnufélaga og yfirmanna sé mikilvægur þáttur í starfsánægju starfsfólks sveitarfélaga og sé verndandi þáttur gegn einelti og áreitni á vinnustað. Niðurstöðurnar gefa vísbendingar um að stjórnendur og þeir sem bera ábyrgð á vellíðan á vinnustað ættu að leggja áherslu á félagslegan stuðning á vinnustað, ekki síst nú á tímum Covid-19 og á vinnustöðum þar sem sálfélagslegt vinnuumhverfi er erfitt.
Auglýsingar í hlaðvörpum: Áhrif trúverðugleika þáttastjórnenda og tengsl þeirra við hlustendur
Authors: Gestsdóttir Hanna Dís , Hermannsdóttir Auður
Published: December 2021

Á degi hverjum birtast neytendum fjöldinn allur af auglýsingum þar sem fyrirtæki keppast um að fanga athygli þeirra. Samhliða auknum hlustendatölum hafa fyrirtæki gjóað augum sínum að hlaðvarpsmiðlinum og eru í sífellt auknum mæli farin að verja auglýsingafé í hann. Þó er skortur á vísindalegum rannsóknum þar sem áhrif slíkra auglýsinga á hegðun hlustenda eru könnuð. Markmið þessarar rannsóknar var að skoða hvort trúverðugleiki hlaðvarpsþáttastjórnenda hafi áhrif á áform hlustenda um að kaupa vöru eða þjónustu sem þáttastjórnendur auglýsa í hlaðvörpum sínum og hvort þeim áhrifum sé miðlað af því einhliða sambandi sem hlustendur hafa myndað við þáttastjórnendur. Út frá fyrirliggjandi rannsóknum var sett fram rannsóknarlíkan. Í gegnum rafrænt hentugleikaúrtak fengust 1.137 svör frá hlaðvarpshlustendum. Niðurstöðurnar sýndu að því trúverðugri sem hlaðvarpsþáttastjórnandinn er, því meiri líkur eru á að hlustendur áformi að kaupa vöru eða þjónustu sem hann auglýsir í hlaðvarpi sínu, en þeim áhrifum er að öllu leyti miðlað í gegnum það einhliða samband sem hlustandi hefur myndað við þáttastjórnandann. Niðurstöðurnar undirstrika mikilvægi þess að hlaðvarpsþáttastjórnendur ýti undir myndun einhliða sambands ef auglýsingarnar í hlaðvarpinu eiga að vera líklegar til árangurs fyrir þau fyrirtæki sem kjósa að verja hluta af markaðsfjármagni sínu á þeim vettvangi. Rannsóknin bætir úr skorti á þekkingu á áhrifum hlaðvarpsauglýsinga á neytendur og er því mikilvægt framlag til fræðanna. Niðurstöðurnar veita jafnframt markaðsfólki upplýsingar sem geta hjálpað því að ákvarða hvort það eigi að auglýsa í hlaðvarpi og hvað ber að hafa í huga við val á hlaðvarpi. Mælst er til þess að vandað sé til verka, en trúverðugleiki þáttastjórnandans og geta hans til þess að fá hlustendur til að mynda einhliða samband við sig skiptir verulegu máli fyrir árangur auglýsinganna.
Markaðshneigð og ánægja viðskiptavina
Authors: Höskuldsdóttir Vera Dögg , Þorsteinsson Brynjar Þór , Ásgeirsson Magnús Haukur , Vilhjálmsson Ragnar Már
Published: December 2021

Markmið með þessari grein er tvíþætt, að prófa og þróa nýtt mælitæki markaðshneigðar með því að staðfesta margrannsökuð tengsl markaðshneigðar og ánægju viðskiptavina auk þess að kanna samband markaðshneigðar og tryggðar viðskiptavina í gegnum meðmælavísitölu (NPS) meðal matvöruverslana á Íslandi. Framkvæmd var megindleg rannsókn meðal viðskiptavina, þar sem notað var nýtt aðlagað mælitæki MARKOR, NPS og spurningar úr Íslensku ánægjuvoginni. Sérstök fyrirtækjasíða á Facebook var stofnuð til að geta nýtt markhópamiðaðar auglýsingar sem kerfið býður upp á og ná þannig til einstaklinga á dreifðu aldursbili. Niðurstöður byggja á 757 svörum eftir að gögn höfðu verið hreinsuð með tilliti til þeirra sem ekki svöruðu öllum spurningum eða tóku ekki afstöðu. Gæði gagna voru metin með SPSS auk við úrvinnslu niðurstaðna.
Helstu niðurstöður eru þær að gæði mælitækisins er mikið. Áreiðanleiki mælitækisins var kannaður með aðferð Cronbach Alpha og var hann mikill eða α = 0,868. Ef spurningu var sleppt jók það ekki innri áreiðanleika mælitækisins heldur dró það úr auk þess sem lítil samfylgni var á milli spurninganna, eða frá 0,366 til 0,591. Niðurstöður staðfesta ennfremur niðurstöður fyrri rannsókna, að sterk tengsl séu milli markaðshneigðar og ánægju viðskiptavina, sem og líkur á meðmælum. Gefur það sterklega til kynna að hið nýja mælitæki mæli það sem því er ætlað að mæla með áreiðanlegum hætti. Niðurstöður greina einnig frá því að markaðshneigð og NPS spáir fyrir um 72,6% af breytileika ánægju viðskiptavina. Markaðshneigð hefur þó meiri forspágildi en NPS á ánægju. Markaðshneigð og ánægja viðskiptavina spáir fyrir um 63,3% líkum þess að viðskiptavinir mæli með versluninni við aðra en ánægja hefur meiri forspágildi á NPS. Niðurstöðurnar benda því til þess að aukin áhersla á markaðshneigð skili sér í meiri ánægju og síðar tryggð viðskiptavina sem er gott veganesti fyrir stjórnendur á þessum markaði til framtíðar, sé markmið þeirra að auka ánægju og tryggð viðskiptavina sinna.
PENYULUHAN TENTANG BAHAYA MEROKOK PADA SISWA-SISWI SMKN 2 PANGANDARAN
Authors: Sumarna Umar , Rosidin Udin , Purnama Dadang
Published: December 2021

Indonesia merupakan negara dengan jumlah perokok terbanyak di ASEAN, Sementara itu, jumlah perokok Indonesia dengan umur lebih dari 10 tahun paling tinggi terdapat di Provinsi Jawa Barat. Kabupaten Pangandaran adalah salah satu kabupaten di Jawa Barat yang dijadikan tempat wisata. Sebagai tempat wisata, kabupaten ini berpotensi memiliki jumlah perokok banyak, karena lingkungan sosialnya mendukung remaja putra-putrinya untuk memiliki perilaku kebiasaaan merokok. Seperti pada sekolah-sekolah menengah atas  lainnya, maka siswa-siswi SMKN 2 Pangandaran terdiri dari remaja putra-putri yang terkena dampak berupa ancaman bahaya merokok. Dampak tersebut akan semakin mengancam siswa-siswi SMKN 2 Pangandaran bila tingkat pengetahuannya tentang bahaya merokok masih rendah, maka tujuan dari PPM ini adalah meningkatkan pengetahuan siswa-siswi SMKN 2 Pangandaran tentang bahaya merokok. Metode yang digunakan adalah metode penyuluhan berupa ceramah yang disertai dengan diskusi. Hasilnya adalah: dari 45 siswa-siswi diperoleh hasil pre test menunjukkan bahwa  sebanyak   31,11 % siswa memiliki tingkat pengetahuan baik , 46,67 % sedang, dan 22,22% kurang, sementara hasil post test sebanyak  71,11% siswa memiliki tingkat pengetahuan baik, 28,89 % sedang, dan tingkat pengetahuan kurang tidak ada. Maka dapat disimpulkan bahwa: secara kelompok, terjadi peningkatan pengetahuan tentang bahaya merokok dari siswa-siswi SMKN 2 Pangandaran.
PENYULUHAN TEKNOLOGI IRIGASI TETES GUNA MENINGKATKAN PRODUKTIFITAS CABAI DI DESA IE SUUM KECAMATAN MESJID RAYA ACEH BESAR
Authors: Zaitun Zaitun , Zulfahrizal Zulfahrizal , Susanti Elly
Published: December 2021

Pengetahuan dan keterampilan Kelompok Tani Desa Ie Suum tentang teknik perakitan instalasi irigasi tetes untuk peningkatan produksi cabai masih terbatas. Tujuan dari kegiatan pengabdian ini untuk meningkatkan pengetahuan dan keterampilan kelompok tani tentang teknik perakitan instalasi irigasi tetes untuk peningkatan produksi cabai. Kendala utama dalam peningkatan produksi cabai adalah sulitnya tersedia air dan teknik irigasi yang tidak memadai. Disamping itu tanaman sangat mudah layu dan tumbuh kerdil. Mengatasi permasalahan tersebut dilakukan kegiatan pengabdian tentang teknik perakitan instalasi irigasi tetes untuk peningkatan produksi cabai. Kegiatan ini dilaksanakan di Desa Ie Suum Kecamatan Mesjid Raya Kabupaten Aceh Besar. Pelaksanaan kegiatan ini meliputi penyuluhan, demonstrasi teknik perakitan instalasi irigasi tetes dan pengaplikasian pada tanaman cabai. Target dan luaran dari kegiatan ini adalah meningkatkan pengetahuan dan keterampilan kelompok tani tentang teknik perakitan instalasi irigasi tetes untuk peningkatan produksi cabai, dapat meningkatkan pendapatan dan berbisnis cabai secara profesional dan berkelanjutan. Hasil pengabdian telah berhasil merakit penyiraman irigasi tetes untuk peningkatan produksi cabai di Desa Ie Suum Kecamatan Mesjid Raya Aceh Besar. Terjadi peningkatan pertumbuhan tanaman sampai 50% dengan penggunaan irigasi tetes pada budidaya cabai.