bluuebunny/crossref_metadata_2025 huggingface dataset:
Addressing Myths and Vaccine Hesitancy: A Randomized Trial
Authors: Steffens Maryke S. , Dunn Adam G. , Marques Mathew D. , Danchin Margie , Witteman Holly O. , Leask Julie
Published: October 2021

OBJECTIVES

Evidence on repeating vaccination misinformation or "myths" in debunking text is inconclusive; repeating myths may unintentionally increase agreement with myths or help discredit myths. In this study we aimed to compare the effect of repeating vaccination myths and other text-based debunking strategies on parents’ agreement with myths and their intention to vaccinate their children.

METHODS

For this online experiment we recruited 788 parents of children aged 0 to 5 years; 454 (58%) completed the study. We compared 3 text-based debunking strategies (repeating myths, posing questions, or making factual statements) and a control. We measured changes in agreement with myths and intention to vaccinate immediately after the intervention and at least 1 week later. The primary analysis compared the change in agreement with vaccination myths from baseline, between groups, at each time point after the intervention.

RESULTS

There was no evidence that repeating myths increased agreement with myths compared with the other debunking strategies or the control. Posing questions significantly decreased agreement with myths immediately after the intervention compared with the control (difference: −0.30 points, 99.17% confidence interval: −0.58 to −0.02, P = .004, d = 0.39). There was no evidence of a difference between other debunking strategies or the control at either time point, or on intention to vaccinate.

CONCLUSIONS

Debunking strategies that repeat vaccination myths do not appear to be inferior to strategies that do not repeat myths.
Proyectos valiosos: emociones políticas en la pandemia
Authors: Cano Carolina , Escobar Juan , Pérez Ricardo , Silva Santiago
Published: October 2021

Las emociones políticas pueden tener un efecto considerable sobre el comportamiento social de las personas, por lo que los Estados deben procurar impulsar aquellas que sean beneficiosas paras las empresas colectivas. Siguiendo los planteamientos de Martha Nussbaum, emociones como el amor, la compasión, la aflicción y la empatía contribuyen a la consecución de estos objetivos comunes; mientras que el miedo, la envidia, el asco y la vergüenza pueden convertirse en un obstáculo. Este artículo analiza el cubrimiento que tres de los medios digitales más leídos en Colombia le hicieron a la pandemia de la COVID-19, con el fin de establecer qué tipo de emociones recreaban en sus noticias. Estos juegan un papel relevante en la reproducción de principios y valores en la sociedad como medios de información del público.
Presentación
Authors: Robayo Corredor Alejandro , Escobar Greys
Published: October 2021

Esta es la primera entrega de dos publicaciones acerca del tema Emociones y Política. 

La indignación estuvo por doquier en las calles colombianas durante 2021. El descontento generalizado por la desigualdad estructural y la imposibilidad de realizar una vida digna encontraron en la movilización social del Paro Nacional de 2021 un medio para expresarse por varias vías. Desde el cacerolazo por las ventanas de casas y apartamentos en numerosos barrios del país, hasta los enfrentamientos violentos con la fuerza pública, diversos fueron los medios para manifestar el rechazo al gobierno y la situación actual. Las y los jóvenes fueron protagonistas de este proceso con unos alcances y unas dimensiones nunca vistas. Como el maestro Fals Borda lo planteaba hace varios años, parece que las nuevas generaciones han construido un nuevo entendimiento de la realidad local y nacional, en la que no solamente rechazan un legado de exclusiones y violencias de varias décadas, sino que sentimientos como la frustración y la desesperanza encuentran otras vías de expresión a laacostumbrada resignación o indiferencia.
B. G. Muzrukov and the Problem of Production Organization at the Urals Machine-Building Plant (1946–1953)
Authors: Mikheev Mikhail V. , Bedel Alexander Em.
Published: October 2021

Introduction. The purpose of the article is to assess the economic consequences of the transfer in 1947 of the director of the Urals Machine-Building Plant (UZTM) B. G. Muzrukov into the system of the Soviet atomic project for the subsequent development of production at UZTM. B. G. Muzrukov was the main initiator, developer and organizer of the reconversion program carried out at UZTM since 1944. His transfer coincided with the height of its implementation. Materials and Methods. The authors used statistical and clerical materials on the activities of UZTM in 1946–1953. Based on the annual accounting reports of the plant for its main activities, dynamic statistical series of data were compiled on the implementation of the UZTM plan for the shaft and nomenclature of products (method of average percentage). The information obtained was analyzed in the context of the planning targets, personnel changes, and the state of production discipline at the plant. Results and Discussion. It was established that the reassignment of B. G. Muzrukov aggravated the problems associated with the implementation of the production reconversion program at UZTM. They were marked in a number of internal and external factors (drop in reporting rates, conflicts in the workforce, changes in planned buildings, adjustments to the reconversion program by the relevant ministry). Conclusion. The tested/shown method of analysis and evaluation of the results of the UZTM operation can be extended to other industrial enterprises of the USSR in the 1940s–1950s. The subsequent analysis of the data in dynamics and comparison will allow the professional community to expand its own understanding of the specifics of the functioning of the industry in the period of the late Stalinism.
Storage under combined ultraviolet (UV) and light-emitting diodes (LED) enhances carotenoid concentration in mature green tomatoes
Authors: Cano-Molina C. , López-Fernández A. , Díaz-González N. , González-Barrio R. , Baenas N. , Periago M.J. , García-Alonso F.J.
Published: October 2021

Tomato is rich in different bioactive compounds, especially the carotenoid lycopene, which intake is associated with various health benefits. Post-harvest use of ultraviolet light (UV) and light-emitting diode (LED) has been shown to increase the concentration of tomato bioactive compounds. The aim of this study was to evaluate the effect of ultraviolet (A and C) and red-blue LED light on the concentration of carotenoids during a 7-days storage trial of mature green tomatoes. Exposure to combined UV and LED light nearly doubled the total carotenoid concentration and had no negative impact on sensory attributes.
A genetikai adatok szerepe a járványok elleni küzdelemben
Authors: Becsei Ágnes , Pipek Orsolya Anna , Pollner Péter , Csabai István
Published: October 2021

Összefoglaló. A COVID–19-járvány alatt bizonyossá vált, hogy az
adattudományok, az adatok gyors megosztása és a nemzetközi összefogás a hatékony
járványkezelés kulcsfontosságú eszközei. A járvány előtt létrejött Újonnan
Felbukkanó fertőző betegségek Obszervatóriuma (Versatile Emerging infectious
disease Observatory, VEO) nevű nemzetközi konzorcium célja egy olyan monitorozó
rendszer kiépítése, amely a potenciálisan veszélyes kórokozókat még az előtt
azonosítja, mielőtt azok tömeges megbetegedéseket okoznának, lehetőséget adva
ezzel a gyors reagálásra. A járványok megelőzésére és kezelésére létrejött
nemzetközi együttműködésekben, így a VEO-ban is a kórokozók, vagy a fertőzésnek
kitett személyek genetikai szekvencia adatai kiemelkedő fontosságúak. Az ilyen
típusú adatok kezelésével kapcsolatban az Európai Unióban többek között a
Nagojai Jegyzőkönyv és a GDPR fogalmaz meg elveket, szabályokat.

Summary. Data science is proved to be a key tool in the fight
against the ongoing COVID-19 pandemic, but it requires a huge amount of data
shared between international research groups. The Versatile Emerging infectious
disease Observatory (VEO) EU collaboration was established to generate and
distribute high quality data for an evidence-based early warning system for
emerging infectious diseases. Through an iterative process between data
scientists, disease experts, social scientists and citizen scientists, a
collaborative platform will be created for storing, secure sharing and analyses
of traditional and new data sources. Next generation sequencing (NGS) has
revolutionized genomic research. This versatile technology is broadly applicable
to pathogens and human hosts. Rapid sharing of pathogen genetic resources,
including physical samples of cultured pathogens and additionally genetic
sequencing data of pathogens, is crucial in support of research and outbreak
response. Access to genetic resources is regulated by the Nagoya protocol which
is an internationally binding treaty to ensure equal sharing of benefits arising
from the use of genetic resources. So far the Nagoya protocol has been applied
only to biological samples, but digital data from genetic sequencing doesn’t
necessarily fall under the treaty. Effects of diseases can differ based on
genetic backgrounds, as certain gene variants may provide protection against or
susceptibility to viral diseases. Human genomic data is an important resource
for medical research. The General Data Protection Regulation (GDPR) lists
identifiable human genetic data as sensitive, which is a subset of personal
data. Sharing and analysis of this kind of data are strictly regulated and they
are also subject to ethical challenges. These concerns become less pronounced
when analyzing environmental samples like sewage. Samples collected from
wastewater treatment plants can be used as pooled samples, containing naturally
anonymized genetic information of the human population, near the wastewater
treatment plant.
PENYULUHAN PARTISIPATIF BUDIDAYA CACING SUTERA (Tubifex sp.) DI KECAMATAN MANGUNJAYA KABUPATEN PANGANDARAN PARTICIPATIVE DISCUSSION OF SILK WASTE CULTURE (Tubifex sp.) IN MANGUNJAYA DISTRICT PANGANDARAN REGENCY
Authors: Zubaedi Ahmad Nur , Nuraini Yenni , Sinaga Walson H.
Published: October 2021

ABSTRAK Kecamatan Mangunjaya Kabupaten Pangandaran memiliki jumlah penduduk sebanyak 31.598 jiwa, dengan jumlah tersebut yang memiliki kegiatan budidaya ikan sebanyak 133 RTP yang tergabung dalam 11 kelompok pembudidaya ikan (POKDAKAN), kelompok yang memiliki kelas pemula sebanyak 81% dan 12% dari kelompok tersebut memiliki kelas madya. Kecamatan Mangunjaya merupakan daerah kawasan potensi perikanan budidaya air tawar dengan komoditas unggulan yang ada terdiri dari lele, nila, dan gurame, yang terbagi dalam beberapa segmen budidaya. Permasalahan yang ada di Kecamatan Mangunjaya yaitu ketersediaan pakan alami cacing sutera yang langka, sehingga pembudidaya tidak dapat memberikan pakan cacing sutera untuk  benih ikan lele pada waktu yang diperlukan  sesuai dengan takarannya. Hal ini menyebabkan produksi benih ikan lele rendah  dengan  rata-rata SR 60% sehingga pendapatan rata-rata persiklus Rp. 882.000,- dan keuntungan hanya mencapai Rp. 42.000 persiklusnya. Sehubungan dengan permasalahan tersebut perlu adanya pengembangan usaha budidaya cacing sutera secara mandiri untuk mengatasi fluktuasi hasil tangkapan dari alam dan optimalisasi usaha pembenihan lele. Penelitian ini bertujuan untuk : (1) mempelajari perubahan aspek pengetahuan, sikap dan keterampilan pembudidaya tentang budidaya cacing sutera (Tubifex sp.) untuk menunjang peningkatan usaha pembenihan ikan ikan lele (2) mempelajari tingkat adopsi inovasi tentang budidaya cacing sutera (Tubifex sp.) kepada pembudidaya ikan lele. Pada evaluasi kegiatan terjadi peningkatan aspek pengetahuan 42,8%, aspek sikap 58,9 %, aspek keterampilan 4 orang terampil dan 5 orang cukup terampil dan inovasi ini diadopsi oleh 3 orang. Kata kunci : Budidaya Cacing Sutera, Ikan Lele, Penyuluhan Partisipatif
PREFACE
Authors: A Dang Quang , Tu Bao Ho , Dung Dinh , Ha Duong Phan , Khoa Son Nguyen , Duc Thi Vu
Published: October 2021

This Special Issue of Journal of Computer Science and Cybernetics is dedicated to Professor Phan Dinh Dieu on the occasion of his 85th birth anniversary.
Reliability of Data Acquisition and Processing Approaches for Chromatography Detection Systems in Pharmacy
Authors:   , Marehn David Thomas
Published: October 2021

Nowadays pharmaceutical analysis and industry could not be imagined without using chromatographic methods like the High Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC). Therefore, the field of chromatography is already firmly anchored in the three important, regional pharmacopeias: EP, USP and JP. Deficits of specifications within these pharmacopoeias relating to the detector parameters sampling rate and signal filtration are the major motivation of this thesis. Furthermore investigations on the data acquisition and processing within the detectors and software products dealing with collected data were done. Several concepts like double entry method, smoothing optimization and signal filtration based on persistence have been developed and are used as tools to examine the data integrity of commercial Chromatography Data System (CDS), improve the signal-to-noise ratio of small peaks to lower the LOD and LOQ by efficient denoising, and determine the suitable filter parameters and sampling rates an user can apply on his system to accelerate the method development and validation. All developments have been tested on simulated and real chromatograms and have shown that they are suitable for their specific purposes. In the end optimizations in the concepts still exist but some new aspects in the long-term investigated field of chromatography have been discovered.
Gender-based incidence, recovery period, and mortality rate of COVID-19 among the population of district Attock, Pakistan
Authors: Ejaz R. , Ashraf M. T. , Qadeer S. , Irfan M. , Azam A. , Butt S. , Bibi S.
Published: October 2021

Abstract COVID-19 is reported as an extremely contagious disease with common symptoms of fever, dry cough, sore throat, and tiredness. The published literature on incidence and gender-wise prevalence of COVID-19 is scarce in Pakistan. Therefore, the present study was designed to compare the distribution, incubation period and mortality rate of COVID-19 among the male and female population of district Attock. The data were collected between 01 April 2020 and 07 December 2020 from the population of district Attock, Pakistan. A total of 22,962 individuals were screened and 843 were found positive for RT-qPCR for SARS-CoV-2. The confirmed positive cases were monitored carefully. Among the positive cases, the incidence of COVID-19 was 61.7% among males and 38.2% among females. The average recovery period of males was 18.89±7.75 days and females were 19±8.40 days from SARS-CoV-2. The overall mortality rate was 8.06%. The death rate of male patients was significantly higher (P<0.05) compared to female patients. Also, the mortality rate was higher (P<0.05) in male patients of 40-60 years of age compared to female patients of the same age group. Moreover, the mortality rate significantly increased (P<0.05) with the increase of age irrespective of gender. In conclusion, the incidence and mortality rate of COVID-19 is higher in males compared to the female population. Moreover, irrespective of gender the mortality rate was significantly lower among patients aged <40 years.
Study of human knowledge and attitude toward urban birds in Faisalabad city, Pakistan
Authors: Nawaz M. F. , Fatima R. , Gul S. , Rana N. , Ahmad I. , Naseer J. , Afzal S. , Yasin G. , Asif M. , Khan S. H. , Altaf M.
Published: October 2021

Abstract Birds are very valuable indicators of species richness and endemic patterns in a specified ecosystem, which eventually help the scientist to measure the environmental degradation. The aim of present study was to know human knowledge and attitude toward urban birds in Faisalabad city, Pakistan. The study conducted in four consecutive months: November 2019 to February 2020. Population of birds was noted from eight residential towns of Faisalabad city, data were collected through questionnaire. Faisalabad has a reasonably large population of birds and present data show that, there is a significant difference between favorite bird of residential areas and institutions. The pigeon received the most likeness in bird population among residential area residents, while the myna received the least. The most popular bird in Faisalabad institutions was the sparrow, while the least popular bird was the common myna. Bird adaptation percentage of residential areas and institutional areas of Faisalabad was the highest for parrot and sparrow respectively. People in residential areas and institutions, on the other hand, adapted least to common myna. It is concluded that people of the study area like birds and offered food and high population of birds are present in study area.
Exploration of Zingiber officinale effects on growth performance, immunity and gut morphology in broilers
Authors: Asghar M. U. , Rahman A. , Hayat Z. , Rafique M. K. , Badar I. H. , Yar M. K. , Ijaz M.
Published: October 2021

Abstract The current study aimed to determine the effects of different levels of Zingiber officinale as a herbal feed additive on growth performance, carcass characteristic, serum biochemistry, total bacterial count (TBC), gut morphology, and immunological parameters of broilers. A total of 1500, day-old broiler chicks (Hubbard) were equally accredited to five treatment groups, each with six replicates (50 birds/replicate). Five experimental diets were prepared using basal diet i.e. with antibiotics positive control (PC), 3 g/kg ginger (group A), 6 g/kg ginger (group B), 9 g/kg ginger (group C) and without antibiotics negative control (NC). Group A and C showed significantly (p<0.05) higher feed intake (FI) as compared to other groups. Group C showed significantly (p<0.05) lower Total bacterial count (TBC) followed by group B as compared to NC. Carcass characteristics showed non-significant effects among different treatments. Mean villi length and width were significantly (p <0.05) higher in all ginger supplemented groups as compared to the control groups. Blood serum parameters including cholesterol, triglycerides, and low-density lipoproteins (LDL) were significantly (p<0.05) lower in groups B and C in comparison with the control groups. Whereas high-density lipoproteins (HDL) was significantly higher in group B as compared to the others. In conclusion, ginger supplementation @0.6% in the basal diet significantly improved growth performance and gut morphometry of broilers. It also showed a positive impact on cholesterol, triglycerides and gut microbes. Therefore, ginger could be a better substitute for antibiotic growth promoters.
Cultural ecosystem services and disservices in an urban park in Bogota, Colombia
Authors: Montes-Pulido Carmen , Forero Victor Fabian
Published: October 2021

Abstract Cultural Ecosystem Services (CES) are important for contributing to the physical and mental health of humans, but they have been little studied in low-income populations. It is intended to understand the meaning of the “Entrenubes” Ecological Park (PEN) for visitors, through: 1) identifying the sociodemographic variables associated with the different ecosystem services and disservices; 2) Define how the relative importance of interactions with these variables differs between ES. A questionnaire was applied to 281 visitors. A Multiple Correspondence Analysis (MCA), chi-squared test and ordinal logistic regression were performed between ES and visitor profile. 7 CES and 3 regulatory ones were identified. No significant associations were found between ES preferences, disservices and sociodemographic characteristics of the visitors. Recreation presented the highest average perception. Drug abuse was the predominant disservice. These results provide criteria for decision-making in urban green infrastructure planning.
NEOXTRATIVISM AND THE SAMARCO DISASTER: HISTORICAL CONSTRUCTION OF VULNERABILITY IN ANCHIETA (ES, BRAZIL) IN A MINING-DEPENDENCY CONTEXT
Authors: Tschaen Ricardo , Mello Fabrício Cardoso de , Rosa Teresa Cristina da Silva
Published: October 2021

Abstract The aim of the current article is to analyze vulnerability in the municipality of Anchieta, Espírito Santo State (ES), Southeastern Brazil, as a historical process, by taking into consideration the implementation of the mining company Samarco in the 1970s as part of the large-scale industrial project policy put in place in the state. Assumingly, as modernization advances, disaster risks emerge within a context of territorial vulnerability, whose effects are not limited to a specific moment in time. Based on interviews conducted with the local population and on consultations in macro-economic data, the study has identified that (1) the vulnerability of Anchieta is correlated to the global modernization process, to the core-periphery model implemented in Latin America and to neoextractivist mining-dependency; (2) the territorial heteronomy renders Anchieta dependent on Samarco operations. In light of Fundão dam’s disaster in the municipality of Mariana, Minas Gerais State (MG), the vulnerability of Anchieta became evident after Samarco operations were interrupted.
Cuidados paliativos: conhecimento dos formandos de Medicina de uma instituição de ensino superior de Goiás
Authors: Costa Natália Sousa , Fonseca Nathália Maria , Santos Isabella Augusto , Paulino Gustavo Marques , Carvalho Júlia Oliveira , Vieira Aila Davis Fanstone Pina
Published: October 2021

Resumo: Introdução: Os cuidados paliativos (CP) consistem na assistência multidisciplinar e holística ao paciente para melhoria de sua qualidade de vida e de seus parentes, por meio da prevenção e do alívio de enfermidades, de modo a amenizar seus aspectos físicos, sociais, psicológicos e espirituais. Ressalta-se a crescente necessidade de CP, posto que, com o envelhecimento populacional e o aumento da prevalência de doenças crônicas não transmissíveis, há, no mundo, milhões de pessoas que necessitam de CP por ano, das quais apenas 14% recebem esses cuidados até o final da vida. Objetivo: Este estudo teve como objetivo verificar o conhecimento dos formandos de Medicina de 2020 de uma instituição de ensino superior do interior de Goiás acerca dos CP. Método: Este trabalho foi feito por meio de um estudo descritivo, transversal e de natureza quantitativa, no qual se utilizou o Questionário Geral sobre Cuidados Paliativos (QGCP), com adaptações e perguntas objetivas. Aplicou-se o QGCP de forma on-line. O universo amostral foi constituído por 74 formandos. As participações foram de caráter voluntário e, exclusivamente, para fins científicos, respaldando as recomendações éticas de anonimato e confidencialidade. Resultado: Notou-se que a maioria dos participantes considerou os CP como “importantes” ou “muito importantes”, embora uma minoria deles tenha se interessado em realizar alguma formação específica nessa área em sua prática clínica. Além disso, apesar de apenas uma questão do questionário aplicado ter apresentado mais de 50% de erro, inferindo que os participantes demonstram um certo conhecimento em CP, 86,5% (n = 64) dos avaliados não consideraram seu conhecimento acerca de CP como “apropriado” ou “muito apropriado”. Conclusão: Os resultados revelam que, embora os acadêmicos reconheçam a importância dos CP, o desconhecimento acerca da sua filosofia e de seus princípios e a insegurança quanto às condutas a serem prescritas destacam a necessidade de uma educação permanente sobre o assunto. Esses achados corroboram estudos nacionais e internacionais que afirmam a necessidade da disseminação do conhecimento sobre a filosofia e os princípios dos CP.
Lítio, dextrana e rodamina na avaliação da hidrodinâmica de sistemas alagados construídos
Authors: Colares Ana Paula Ferreira , Borges Alisson Carraro , Carvalho Karina Querne de , Rosa André Pereira
Published: October 2021

RESUMO Sistemas alagados construídos (SACs) são alternativas de engenharia para tratamento de águas residuárias. Entretanto, ainda são limitadas as pesquisas relacionadas à hidrodinâmica desses sistemas, quando comparados a outras unidades de tratamento, como filtros biológicos, reatores anaeróbios, lagoas de estabilização, dentre outros. Dessa forma, neste estudo teve-se como objetivo avaliar o comportamento hidrodinâmico de três SACs de escoamento horizontal subsuperficial (plantados e não plantados) em escala piloto, por meio da injeção dos traçadores cloreto de lítio, dextrana azul e rodamina WT. Utilizaram-se diferentes metodologias de normalização, para vazão constante e para vazão variável, para avaliar o efeito da variação da taxa de escoamento no sistema. Além disso, determinaram-se os índices hidrodinâmicos e o grau de dispersão dos sistemas por meio dos modelos de escoamento tanques em série e escoamento disperso. Os valores recuperados de rodamina WT e de lítio foram satisfatórios, maiores do que 80% da massa injetada nos três SACs. Para a dextrana azul, a taxa recuperação não foi validada. Não foram verificadas diferenças nas curvas de distribuição de tempo de retenção submetidas às duas metodologias de normalização. Os índices hidrodinâmicos determinados revelaram baixo grau de curtos-circuitos, boa eficiência hidráulica e mistura nos sistemas. Os sistemas apresentaram grau de dispersão moderada, o que está de acordo com os resultados obtidos pelos índices hidrodinâmicos.
Knowledge Management and Industry 4.0 and Open Innovation
Authors: Palacios Osma José Ignacio , Moreno Salazar Fabián Leandro , Morales Gómez Karen Natalia
Published: October 2021

Introduction: The bibliographic review that is presented is the result of the research “Open Innovation and Knowledge Management” developed at the Universidad Distrital Francisco José de Caldas, during the year 2019.

Objective: To demonstrate a Knowledge management and Industry 4.0 model that consolidates innovation processes in Colombian organizations.

Methodology: A systematic mapping of information was developed, focused on the academic databases of the publications that link the concepts of Knowledge management, Industry 4.0 and Open innovation in the period 2016-2019.

Conclusions: Innovation is a key factor for organizations, in particular to achieve competitiveness. For this, it is necessary to have inter-institutional and intra-institutional knowledge management models, characterized by the decentralized exchange of information in the context of Industry 4.0. Therefore, it is necessary that the governance of an organization understand and facilitate the processes of opening and exchanging knowledge and information.

Originality: This model allows for the convergence of different models of administration and organization management, which must be co-managers of resource management and human talent.

Limitations: The model is developed from the literature review and from the experiences presented in these investigations, implying that a second stage is necessary for validation with experts.
Locus recommendation using probabilistic matrix factorization techniques
Authors: Behl Rachna , Indu Kashyap
Published: October 2021

Introduction: The present paper is the outcome of the research “Locus Recommendation using Probabilistic

Matrix Factorization Techniques” carried out in Manav Rachna International Institute of Research and Studies, India in the year 2019-20.

 

Methodology: Matrix factorization is a model-based collaborative technique for recommending new items to

the users. 

 

Results: Experimental results on two real-world LBSNs showed that PFM consistently outperforms PMF.

This is because the technique is based on gamma distribution to the model user and item matrix. Using gamma distribution is reasonable for check-in frequencies which are all positive in real datasets. However, PMF is based on Gaussian distribution that can allow negative frequency values as well.

 

Conclusion: The motive of the work is to identify the best technique for recommending locations with the

highest accuracy and allow users to choose from a plethora of available locations; the best and interesting

location based on the individual’s profile.

 

Originality: A rigorous analysis of Probabilistic Matrix Factorization techniques has been performed on popular LBSNs and the best technique for location recommendation has been identified by comparing the accuracy viz RMSE, Precision@N, Recall@N, F1@N of different models.

 

Limitations: User’s contextual information like demographics, social and geographical preferences have

not been considered while evaluating the efficiency of probabilistic matrix factorization techniques for POI Recommendations.
EVOLUTION OF THE FIDUCIARY RELATIONSHIP DOCTRINE IN INDEPENDENT UKRAINE: FROM COMPLETE OBJECTION TO IMPLEMENTATION INTO CURRENT LEGISLATION
Authors: Buyadzhу G.
Published: October 2021

The article addresses the development of the fiduciary relationship doctrine in Ukraine. Primarily, the paper covers the alteration in understanding the idea of trust and other trust-like constructions by Ukrainian society from the 90s of the XX century to present time. The purpose of the article is to highlight the main stages of and approaches to understanding of fiduciary relationship in general and trust and other trust-like constructions in particular, as well as to analyse their common and distinctive features in comparison to related legal institutions and to determine the prospects for their further implementation in Ukrainian law. Methodology. To shed the light on different approaches to understanding trusts and paratrust constructions, a comparative-historical method was used in the article; also the methods of analysis, ascent from abstract to concrete and system-structural methods of scientific cognition were applied. Results and conclusions. Misunderstanding of the idea of a trust has led to violation of the rights of citizens affected by financial fraud of trust companies, which has played a significant role in shaping the distrustful or negative attitude of lawyers and ordinary citizens of Ukraine to trusts and other trust-like constructions for almost two decades. The concept of trust has existed in the law of Ukraine for a long time, but mostly it is associated with the negative issues like hiding property, hiding information about the ultimate beneficial owners etc. In addition, the concept of trust is changing constantly; this indicates the evolution of approaches to understanding the institution. At present, a trust is understood as "legal relationship," while the previous version of law defines a trust through the category of a legal entity. The approach to understanding the concept of beneficial ownership in a trust differs in common law countries and Ukraine. In Ukraine, this definition covers the right of a natural person who, regardless of formal ownership, has the opportunity to exercise decisive influence over the management or economic activity of a legal entity directly or through other persons. Keywords: fiduciary relationship, trust, trust-like (paratrust) constructions, property management, Trust Convention, beneficial ownership, trustee, ultimate beneficial owner, beneficiary, controlled foreign company (CIC), revocable trusts, irrevocable trusts.
Management of Security Commitments in Asymmetric Alliances: The Case of Russia
Authors: Istomin I.
Published: October 2021

Since the second half of the 20th century, military alliance ceased to play an essential role in ensuring the security of major powers. Meanwhile, asymmetric alliances, in which a major power remained an incontestable leader surrounded by weak parties, proliferated across international system. The literature explains these relationships in terms of an exchange in dissimilar benefits between states, following the formula “security for autonomy”. This explanation seems generally plausible, but it does not reveal exact benefits for a major power from establishing control over the weak states. This article intends to deepen our theoretical understanding of why states resort to asymmetric alliances and to test the significance of suggested propositions through an in-depth analysis of the Russian record of alliances. Russia built allied relations with several neighbors but does not extend similar mechanisms to partners in other geographic areas. This policy is puzzling, since it comes into dissonance with the foreign policy stance that international security and global order should be built on the principle of the indivisibility of security and inclusive international institutions. In its foreign policy discourse Russia strongly condemns closed formats with limited participation. The study solves two interrelated problems. First, it helps to deepen understanding of Russian foreign policy strategy and the role of various instruments of military-political cooperation in ensuring national interests. Secondly, it allows to test the provisions of the theory of asymmetric alliances, assessing its applicability to a hard case. The article reveals Russia’s sensitivity to direct and opportunity costs as well as to potential risks of binding security commitments. However, it relies on asymmetric alliances with neighboring countries to reap the benefits of increasing power projection opportunities, legitimizing its foreign policy initiatives, limiting freedom of maneuver for its competitors, and stabilizing its strategic surrounding. The Russian experience of building relations with allies differs significantly from the American one, which, due to the scale of the US alliance network, is often presented as a model one. Nevertheless, it is quite consistent with the provisions of the theory of asymmetric alliances.
Ad Hoc Alliances as Italian Key Statecraft Tool
Authors: Shibkova M.
Published: October 2021

Despite economic troubles and constant political instability Italy manages to keep its historical role as a key EU state and one of the three major economies of the region, which justifies its G7 membership and therefore formally endues it with a great power status. This owes to accommodationism as the main behavioral pattern since the establishment of the Italian Republic and the skillful use of ad hoc alliances – a pragmatic statecraft tool which renders Italy flexible and unpredictable. Too big to be defensive, but not big enough to be offensive, Italy does not provoke antagonism in any EU country, becoming a potential universal ally. Cooperation with Greece on fiscal flexibility, with Spain and France on coronabonds and Hungary on EU common migration policy strengthens its bargaining power in the EU, since the latter needs Italy for reasons of security and solidarity. Being furthermore a devoted US partner since the end of World War II, Italy considers US a guarantor of its national security and position on the international arena and is inclined to lend its support to Washington even if such actions contradict the policies of closer geostrategic partners in the EU. Thanks to such allegiance Italy manages to preserve a certain room for maneuvering in interactions with other non­euroatlantic partners to an extent that does not imperil its strategic alliance with Washington, which has always been an invariable of Italian foreign policy. However, scarce attention from the USA under the current administration makes Italy utilize its statecraft tools towards Washington as well, and a pragmatic rapprochement with China on the Belt and Road Initiative and humanitarian aid during the pandemic presents a clear example thereof.
Sınıf Öğretmenlerinin Ekolojik Ayak İzi Farkındalık Düzeyleri
Authors: DEMİRKOL Mehmet , ASLAN İbrahim
Published: October 2021

Bu araştırmanın amacı sınıf öğretmenlerinin ekolojik ayak izi farkındalık düzeylerini belirlemektir. Bu amaç doğrultusunda 2019-2020 eğitim öğretim yılında Diyarbakır il merkezindeki dört ilçeye (Bağlar, Kayapınar, Sur ve Yenişehir) bağlı okullarda görev yapan 536 sınıf öğretmeni örneklem olarak belirlenmiştir. Nicel araştırma yöntemlerinden tarama modeli ile şekillenen bu çalışmanın veri toplama sürecinde Ekolojik Ayak İzi Farkındalık Ölçeği kullanılmıştır. Elde edilen verilerin değişkenler açısından karşılaştırılması sürecinde nonparametrik testlerden Mann Whitney U ve Kruskal Wallis H testleri kullanılmıştır. Araştırma sonucunda sınıf öğretmenlerinin ekolojik ayak izi farkındalık düzeylerinde cinsiyet, öğrenim durumu, mezun olunan fakülte ve seminer alma durumu değişkenlerine anlamlı farklılık görülmezken; kıdem, okutulan sınıf düzeyi, okulun bulunduğu bölge değişkenleri arasında farklılığın meydana geldiği görülmektedir.
RECAI ÜLKELERİNDE EKONOMİK İSTİKRAR VE ENERJİ TÜKETİMİ İLİŞKİSİ: BOOTSTRAP PANEL NEDENSELLİK ANALİZİ
Authors: HACIİMAMOĞLU Tunahan , SANDALCILAR Ali Rıza
Published: October 2021

Ekonomik istikrar ve enerji tüketimi arasındaki ilişkinin varlığı ve yönünün tespit edilmesi karar alıcıların uygulayacakları politikalarda önemli ve belirleyici bir unsur olmaktadır. Enerjinin barınma, ısınma, ulaşım ve ekonomik faaliyetler için girdi konumu dikkate alındığında yaşamın idame ettirilmesi ve sürdürülebilirlik açısından önemli bir faktör olduğu açıktır. Bu doğrultuda çalışmanın amacı yenilenebilir ve yenilenemez enerji tüketimi ile ekonomik istikrar arasındaki nedensellik ilişkilerini araştırmaktır. Bu bağlamda 19’u gelişmiş ve 16’sı gelişmekte olan toplam 35 ülkenin 1990-2016 dönemini kapsayan ekonomik istikrar endeksi, yenilenebilir enerji tüketimi ve yenilenemez (fosil) enerji tüketimi verileri kullanılmıştır. Çalışmadan elde edilen bulgulara göre panelin geneli için gelişmekte olan ülkelerde değişkenler arasında anlamlı bir nedensellik ilişkisi saptanamaz iken, gelişmiş ülkelerde yenilenebilir enerji tüketiminden ekonomik istikrara, ekonomik istikrardan da yenilenemez enerji tüketimine tek taraflı bir nedensellik ilişkisi tespit edilmiştir. Bu sonuçlardan hareketle gelişmiş ülkeler panelinin geneli için sırasıyla “büyüme hipotezi” ve “koruma hipotezinin”, gelişmekte olan ülkeler panelinin geneli için ise “yansızlık hipotezinin” geçerli olduğu ortaya koyulmuştur.
A case report on gingival depigmentation by scraping method by scalpel
Authors: Bharadwaj Pooja , Siddiqui Almas
Published: October 2021

Smile is the most wonderful gesture of the human being. A Person who is genuinally happy shows his or her pleasure in the form of smile. A beautiful smile for sure enhances individual self confidence. A beautiful smile lies in a harmonial balance between competent lips, size, color, and proper alighnment of teeth and the color of gingival tissues. The normal color of gingival is coral pink as in accordance to British population, and pale pink as in accordance to Indian population. However this gingival pigmentation varies among each and every individual in accordance with the color of the skin, various pigments present in human body like melanin, haemoglobin, carotene. However this melanin when secreted in excess, can lead to brownish, blackish, or bluish discoloration of gingiva, and this discoloration is denoted by the term hyperpigmentation, and the procedure to overcome this hyperpigmentation is called as depigmentation. Present case report is on a 21 years old female whose chief complaint was visual blackish display of gums while smiling. So the procedure depigmentation was done by surgical scalpel by scraping method, and the patient showed better results following two weeks after procedure.

Esthetic dentistry is a recently emerging branch. People now a days are much more concern about the gingival esthetics and smile design, as they want their smile to be beautiful in order to boost up their confidence. . One of the gingival esthetic for which the people are concerned are the hyperpigmented gingiva. Gingival depigmentation is the process to remove this abnormal pigmented gingiva. The clinician must have a knowledge as for which condition, which type of gingival depigmentation technique can be applie so as in order to make the treatment successful.
Un algoritmo Newton inexacto para complementariedad horizontal
Authors: Arias Carlos , Pérez Rosana , Martínez Héctor
Published: October 2021

En este artículo, proponemos un nuevo algoritmo tipo Newton inexacto para resolver el problema de complementariedad horizontal mediante su reformulación como un problema de minimización restricto. El algoritmo usa la estrategia de combinar una dirección Newton inexacta con su proyección sobre el conjunto factible; esta última opción solo se usa cuando se necesita garantizar factibilidad. Además, presentamos un análisis teórico y numérico del nuevo algoritmo.
Una nueva prueba para una conjetura de Özban
Authors: Coronel Aníbal , Lozada Esperanza
Published: October 2021

En este artículo presentamos una prueba corta y elemental de la siguiente desigualdad algebraico-trigonométrica de tipo Laub-Ilani: cos(xy) + cos(yx) ≥ cos(xx) + cos(yy) para x, y ∈ [0, π/2] que fue conjeturada por Özban [‘New algebraic-trigonometric inequalities of Laub-Ilani type’, Bull. Aust. Math. Soc. 96 (2017), 87–97] y recientemente probada por Matejíčka [‘Proof of one open inequality of Laub-Ilani type’, Journal of Mathematical Inequalities, 14 (2020), 83–98]. La prueba se basa en las propiedades de las funciones potenciales-exponenciales y trigonométricas.
La aplicación simultanea de intervenciones de control puede llevar a escenarios catastróficos para la población
Authors: Osuna Osvaldo , Villavicencio Pulido Jose Geiser
Published: October 2021

We analyze the evolution of an infectious disease if infectious individuals are treated or isolated. The analysis of the model shows catastrophic scenarios for the population in which bringing R0 below 1 is not enough to decrease the number of infectious individuals. Finally, we show three scenarios for the behavior of the model solutions in which multiple endemic equilibria exist.
Sociolinguística e Dialetologia
Authors: Mota Jacyra Andrade , Aguilera Vanderci de Andrade
Published: October 2021

Este texto tem como objetivo apresentar um panorama das atividades desenvolvidas pelo Grupo de Trabalho (GT) de Sociolinguística da ANPOLL desde sua fundação até os dias atuais, especialmente as que se referem às pesquisas dialetais. Para tanto, valeu-se de dados extraídos de diversas fontes, tais como Relatórios constantes do site do GT, parte dos Boletins publicados, Atas, além de outros documentos que puderam fornecer uma visão, embora sucinta, das atividades desenvolvidas durante os 35 anos de sua existência. Os sucessivos encontros, como se comprova pelo texto, eram permeados de ideias e atitudes que visavam a sedimentar os estudos sociolinguísticos nas Universidades na sua relação com a comunidade externa, buscando, igualmente, o intercâmbio entre pesquisadores de diferentes instituições. Reconhecem as autoras que parte da história se perdeu por falta de registros, mas as fontes pesquisadas proporcionam elementos suficientes para comprovar não só a presença dos pesquisadores voltados à linha dialetológica, como também a intensa dedicação das diretorias e de seus associados.
Estabilidade e mudança no inglês indígena nativo americano
Authors: Wolfram Walt , Bissell Marie
Published: October 2021

Esta descrição considera a variedade do inglês dos índios Lumbee da Carolina do Norte, o maior grupo de Índios Americanos Nativos a leste do Rio Mississippi. Eles perderam sua língua ancestral gerações atrás e viveram em um contexto rural relativamente estável, triétnico e isolado por várias gerações com afro-americanos e europeus americanos. Examinamos duas estruturas morfossintáticas proeminentes, o uso de perfective I'm em I'm a there e a remorfologização de was e were baseadas na polaridade (por exemplo, It weren’t me, e they was here) e um processo fonético menos saliente, a anteriorização da vogal BOOT. As estruturas morfossintáticas indicam traços de uma variedade remanescente regionalizada que diferenciam o Lumbee de suas variedades de grupo. O traço fonético, no entanto, mostra mudanças ao longo das gerações recentes à medida que o Lumbee passa de um alinhamento com Afro-Americanos para um com os Europeus Americanos. Explicamos o realinhamento do traço fonético para longe da Língua Afro-Americana em termos de uma identidade de oposição, na qual o Lumbee mantém sua distinção como um grupo etnolinguístico que não é Afro-Americano nem Europeu-Americano, mas especialmente não é Afro-Americano.
GT de Sociolinguística e ensino
Authors: Bortoni-Ricardo Stella Maris , Baronas Joyce Elaine de Almeida , Vieira Silvia Rodrigues
Published: October 2021

Este artigo apresenta a trajetória percorrida pelo Grupo de Trabalho de Sociolinguística da ANPOLL (Associação Nacional de Pós-Graduação e Pesquisa em Letras e Linguística) no que se refere ao eixo hoje intitulado Sociolinguística e ensino. As contribuições da equipe foram organizadas em três áreas: (i) a construção de um cenário, com uma retomada histórica de eventos e publicações ao longo da atuação do GT; (ii) o destaque às conquistas, relacionadas especialmente aos fundamentos da Sociolinguística Educacional e ao desenvolvimento de uma Pedagogia da variação linguística; e (iii) o elenco dos desafios enfrentados por diversos projetos de pesquisa. Os resultados atingidos evidenciam a produtividade dos estudos sociolinguísticos no sentido de contribuir para o tratamento da diversidade linguística na área educacional, aproximando os saberes produzidos no ambiente universitário e no contexto escolar.
Sound Toll Registers Online.
Authors: Veluwenkamp Jan Willem , Scheltjens Werner , Van der Woude Siem
Published: October 2021

In 2020, the University of Groningen and Tresoar, the Frisian Historical and Literary Center in Leeuwarden, completed the online database providing instant and free access to the complete Sound Toll Registers. This database, Sound Toll Registers Online (STRO), is already available to everyone at www.soundtoll.nl. Huygens ING is now taking over STRO from Tresoar and the University of Groningen to ensure its quality, accessibility and continuity.
STUDIES OF THE TIME BUDGET AND DAILY ACTIVITY OF COMMON EIDER SOMATERIA MOLLISSIMA DURING INCUBATION
Authors: TERTITSKI GRIGORI M. , SEMASHKO EVGENY V. , CHERENKOV ALEXANDER E. , SEMASHKO VLADIMIR Y.
Published: October 2021

In the Common Eider Somateria mollissima, only females incubate the clutch over a period of 25–28 days. Determining their schedule of nest absence, how long they are away, how often, and where they go can be problematic. They must also avoid nest predation while tending to their own needs. We used geolocators to investigate the behavior of incubating females on forested islands in Dolgaya Guba Bay (65°03′N, 035°47′E), White Sea, Russia. Data were obtained for 12 females: three in 2015 and 2016, four in 2017, and two in 2018. During the entire incubation period, females left their nests for the sea 12–28 times. The average duration at sea was 331.0 ± 53.8 min, including 261.1 ± 47.9 min during the darkest hours in otherwise 24-hour daylight. The patterns are similar to those of eiders nesting in lower, nonpolar latitudes, where nights are dark.