bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS PENURUNAN TARIF PAJAK PENGHASILAN BADAN TERHADAP KEEKONOMIAN KONTRAK BAGI HASIL GROSS SPLIT DAN MULTIPLIER EFFECT BAGI PEREKONOMIAN PADA KEGIATAN HULU MINYAK BUMI DI INDONESIA
Authors: Gregorius Bela Prasetya
Published: May 2021

Analysis of declining income tax rate of economics on production sharing contract gross split and multiplier effect for the economy in upstream activity in Indonesia describes about Indonesia’s Government announces regulation of production sharing contract gross split in upstream activity for contractor to invest in oil and gas in Indonesia. Due to the pandemic of COVID-19, the Government of Indonesia announced another regulation in regard to income tax rate reduction. This has positively affected the economics on NPV and IRR of contractor and has triggered multiplier effects for the economy in general. Sensitivity analysis is used to calculate the effect of income tax rate reduction for the economics in gross split and multiplier effect. This research has shown that 1% of declining income tax rate affects US$29,333,000 of NPV, 0.3% of IRR, US$20,533,000 Gross Domestic Product and 2,933 jobs in pessimistic scenario; US$61,107,000 of NPV, 0.5% of IRR, US$42,775,000 Gross Domestic Product and 6,111 jobs in moderate scenario; and US$92,881,000 of NPV, 0.6% of IRR, US$65,016,000 Gross Domestic Product and 9,288 jobs in optimistic scenario.
Trends of Using Smart Devices and Web Resources Among Dental Students for Educational Purposes
Authors: Hammad Muhammad
Published: May 2021

Objectives: The basic aim of this study was to see the trend of usage of smart devices among dental undergraduates and their attitude towards e-learning. Study Design: Observational cross-sectional study. Setting: Oral and maxillofacial surgery department, PMC Dental Institute Faisalabad Medical University, Faisalabad. Materials and Methods: A questionnaire was developed by a team of dental experts and a literature review keeping in mind the trend of internet-connected devices and data was collected on specially designed Performa and submit it to the principal investigator. Results: The data were collected from 184 participants with a male to female ratio of 1:2.4 and the mean age was 22.5 years. From overall participants 99.5% have internet access, 97.3% use smart devices for education purposes and only 41.8% were comfortable reading e-book. The participants who find mobile phone beneficial are 92% and 28% have daily usage of more than 6-hours. When faced with a challenging scenario 23% said that they web resources and occasionally consult health-related videos. Conclusion: Within the limits of this study we concluded that students find usage of smart devices and the internet beneficial for study purposes and therefore, the study methods should consist of both books and media.
Can Improved Periodontal Health Be a Key Factor in Preventing Severe COVID-19 Complications: An Evidence-Based Review
Authors: Bhatia Vindeshwari
Published: May 2021

COVID-19 is now recognized as a pandemic throughout the world and the severity of the disease has been attributed to many patient-related medical risk factors, which include diabetes, hypertension, respiratory diseases, cardiovascular disease and chronic kidney diseases due to exaggerated immune response associated with these diseases. However, in recent decades, there has been a renewed interest in the association of systemic diseases with periodontal health as the severity of these diseases increases in patients having compromised periodontal health. Therefore, it is suggested that there could be a possible link between the status of periodontal health and the severity of the disease in patients suffering from COVID-19. The purpose of this review article is to explore and highlight the various common mechanisms between periodontal disease and COVID-19 and further explore the role of periodontal disease as a contributing factor for COVID-19 related complications.
Subjective and Objective Treatment Needs Assessment in Patients Attending, M.N DAV Dental College and Hospital Solan, Himachal Pradesh
Authors: Mahajan Poonam
Published: May 2021

Objective: This study is planned on a smaller scale to compare the felt need and normative need among subjects attending Dental Hospital Solan. This an effort to provide essential oral health care to the people of Solan on a superior scale in the future, based on accumulated data, which will facilitate the essential shift from the predominately normative assessment of the need to the incorporation of professionally defined into patientdefined need. Method: Subjective data was obtained by interview method, while the objective need was assessed by a dental professional on a structured format with predefined indices from randomly selected patients from OPD of DAV Dental College and Hospital Solan. Results: The majority of patients were from urban areas, graduate, female, and in the age group of 24-35 years. The most common subjective need was found filling and RC (30.7%). The most common objective need was scaling (36.2%). Maximum agreement between subjective and objective need was found in subjects from the urban area, educated, females, and in case of chief complaint of decayed teeth (44.7%) and the discrepancy was found maximum in case of chief s of periodontal problem and uneducated people from the rural area. Conclusion: This present study indicates low awareness among the population .there was a large discrepancy between subjective and objective treatment needs. The utilization of dental services should therefore be improved not only by providing better dental facilities but to a greater extent by increasing people’s awareness and knowledge of their own dental disorders.
Anesthetic Management of a Large Retroperitoneal Paraganglioma: A Rare Case Report
Authors: Kumar R Arun
Published: May 2021

Paragangliomas are rare tumors derived from the neural crest cells. Most of the paragangliomas occur as sporadic tumors. The commonest incidence occurs in the second and third decade of life with a slight male preponderance. Clinically patients with a retroperitoneal paraganglioma often present with back pain or a palpable mass. There is a 5% incidence of turning into malignancy and these tumors are associated with a high risk of morbidity and mortality from cardiovascular complications. Management for paragangliomas typically involves complete surgical excision. A multi-disciplinary approach is suggested for a better outcome of the procedure
Abdominal Aortic Aneurysms No Not Develop More Aggressively Among Patients With a Positive Family History of the Disease
Authors: Joergensen Trine Maria Mejnert
Published: May 2021

Introduction: It is well known that a family history of Abdominal Aortic Aneurysm (AAA) strongly increases the risk of developing AAA, but it is still unknown whether familial AAAs develop differently than non-familial AAAs. Objectives: To investigate whether familial AAAs develop more aggressively than non-familial AAAs by looking at the growth rate, risk of surgery and rupture, as well as the size of the aneurysm at the time of diagnosis and the patient’s age at the time of operation, rupture and diagnosis. Design: Observational retrospective longitudinal study. Materials and Methods: 318 patients with AAA diagnosed between 1996-2008 in Jutland, Denmark with information on family history of AAA, the diameter of AAA throughout follow-up, surgery, ruptures, comorbidity, smoking, and use of medication. Patients with and without a family history of AAA were compared regarding mean age at diagnosis and surgery, the diameter of AAA at diagnosis, risk of surgery and rupture as well as comorbidity and use of medication. Mean growth rates were compared between the two groups and a mixed-effects model was fitted to control for confounders. Results: We included 93 patients with and 225 without a family history of AAA. Patients with a family history of AAA ere significantly younger than patients with no family history of the disease (69.8 vs. 72.4 years, p=0.032), but we found no significant differences in age at operation (72.2 vs. 70.6, p=0.204), the proportion of patients experiencing rupture (16.0 vs. 10.6%, p=0.226) or undergoing surgery (78.2% vs. 81.7%, p=0.484). We found no significant difference in growth rates between the two groups; 5.25 mm/year for patients with positive family history and 6.19 mm/year for patients with no family history of AAA (p=0.490). Conclusions: We found no evidence to suggest that AAA develops more aggressively in patients with a positive family history of the disease.
Crime commission processes in child sexual abuse material production and distribution: a systematic review
Authors: Cale Jesse , Holt Thomas
Published: May 2021

This review synthesises empirical studies from the past decade investigating child sexual abuse material (CSAM) production and distribution to gain insight into crime commission processes involved in these crimes. The findings highlight overlaps in risk factors for child sexual abuse and CSAM production and distribution, and possible unique risk factors specific to the latter. A substantial amount of CSAM is produced in family contexts, and there are different motivations and strategies for producing CSAM. Taken together, the findings provide important foundational information about the variety of crime commission processes involved in CSAM production and distribution, helping the development of effective prevention and intervention strategies for this increasingly prolific type of crime.
The organisational structure, social networks and criminal activities of outlaw motorcycle gangs: literature review
Authors: Bright David , Deegan Simone
Published: May 2021

Outlaw motorcycle gangs (OMCGs) are often reported to be disproportionately involved in crime. Debate continues about the relationship between the organisational structure of these groups and the extent and types of criminal activities undertaken by group members. A systematic review of the existing literature was conducted to examine the organisational structures that underpin the criminal activity of OMCGs. The available empirical research, though scant, supports the notion that, at least in some clubs or chapters, the structure of OMCGs facilitates criminal activities by individuals or small cliques, sometimes in collaboration with non-members.
ANALISIS UNSUR-UNSUR PEMBAGIAN PENGIMUNAN DASAR LENGKAP PADA BAYI DI PUSKESMAS SIMARIMBUN KOTA PEMATANGSIANTAR TAHUN 2020
Authors: Simanungkalit Sondang ET , Dewi Eva Ratna , Sinaga Martaulina , Sinaga Asnita
Published: May 2021

ABSTRAK

Latar belakang: Pemberian imunisasi merupakan bentuk intervensi kesehatan yang sangat  efektif dalam menurunkan angka kematian bayi dan balita. Dengan pemberian  imunisasi berbagai penyakit seperti hepatitis B, tuberkulosis, polio, difteri,  pertusis, tetanus, dan lainnya dapat dicegah. Pentingnya pemberian imunisasi  dapat dilihat dari banyaknya balita yang meninggal akibat penyakit yang dapat  dicegah dengan imunisasi (PD31).

Metode: Jenis penelitian ini dilakukan dengan penelitian observasional bersifat deskriptif dengan pendekatan retrospektif. Penelitian ini menggunakan desain cross-sectional dengan melakukan pengukuran variabel pada satu saat tertentu tiap subjek hanya diobservasi satu kali dan pengukuran variabel subjek dilakukan pada saat pemeriksaan tertentu dan tidak melakukan tindak lanjut terhadap pengukuran yang dilakukan dimana variable terikat adalah Pemberian Imunisasi Dasar Lengkap Pada Bayi dan Variabel Bebas adalah Pendidikan Ibu, Pengetahuan Ibu, Status Pekerjaan Ibu, Jumlah Anak dalam Keluarga dan Dukungan Keluarga, dimana peneliti menetapkan sebanyak 64 orang ibu yang memiliki bayi usia 0 – 12 bulan di wilayah kerja  Puskesmas Simarimbun Kota Pematangsiantar sebagai responden.

Hasil: Setelah dilakukan penelitian maka didapat hasil dari 64 responden pada tingkat Pendidikan uji chi square nilai Asymp.Sig.(2-sided) P0.035, pengetahuan ibu, nilai Asymp.Sig. (2-Sided)0.088, Pekerjaan Ibu nilai Asymp.Sig. (2-sided) 0.322,  Jumlah anak nilai Asymp. Sig. (2 – Sided) 0.168, dukungan keluarga nilai Asymp.Sig. (2-Sided) 0.159.

Kesimpulan: Dari semua variabel bebas tidak semua faktor memiliki hubungan atau mempengaruhi pada tingkat kelengkapan imunisasi pada bayi, hanya faktor Tingkat Pendidikan Ibu dan Faktor Pengetahuan Ibu yang ada hubungannya dengan Imunisasi pada bayi sedangkan Faktor Pekerjaan Ibu, Jumlah anak, dan Dukungan Keluarga tidak ada hubungannya dan tidak mempengaruhi kelengkapan imunisasi pada bayi.Hasil dari penelitian ini hanya berdasarkan penilaian dari nilai value dan Asymp.Sig (2-Sided) saja, tidak bisa berdasarkan hasil Expecteed count.
A New Mathematical Metric for Inclusive Excellence in Teaching Applied Before and During the COVID-19 Era
Authors: Ludwig Jeffrey Thomas
Published: May 2021

In this paper a novel metric for evaluating inclusive excellence in teaching is introduced and applied to students' performance in classes before and during the COVID-19 era. The novel metric, named the Inclusive Excellence Ratio (IER), is designed to simultaneously reflect the two desirable characteristics embraced by inclusive excellence teaching: strong student performance and low variation in performance across all students. The computation of the IER given student test score data is simple and straightforward: it is the statistical sample mean divided by the sample standard deviation. Consequently, the IER is high when the students' test scores are high and variance is low, suggesting it may provide a useful quantitative measure for those educational innovators seeking to experiment with new, effective teaching methodologies that boost inclusive excellence. The IER is applied to evaluate a posteriori student performance taken from cumulative aggregate data from the University of California, Irvine (UCI) undergraduate math finance classes involving 378 students over two academic years (2018 to 2020), spanning five quarters before and one quarter during the COVID-19 era of remote teaching at UCI. Conclusions are drawn and discussed comparing the quality of in-person teaching environments to remote teaching environments.
Evaluation of Tourism Policies Towards Sustainable Development
Authors: Marpaung B O Y , Aulia Dwira Nirfalini , Witarsa Eric
Published: May 2021

Indonesia has the potential of natural resources for tourism development. One of the natural resources that the government continues to develop in Indonesia is the Lake Toba tourist attraction. The level of tourism visits at Lake Toba tourist destinations in Indonesia in recent years is low. Policies designed to provide a socially inclusive and ecologically sound tourism framework are weak in encouraging local wisdom-based tourism in the tourist destinations of Lake Toba, North Sumatera, Indonesia. Local wisdom-based government policies are essential and strategic because they can trigger an increase in the quality of tourism in Lake Toba. Government regulations and policies that show concern for local wisdom for the Lake Toba area in North Sumatera, Indonesia, can support and guide community involvement. The results of this research can help evaluate policy documents at other well-known tourist destinations.
Bereidheid om samen te werken met actoren in de strafrechtketen: de invloed van procedurele rechtvaardigheid in Nederland
Authors: van Hall Matthias
Published: May 2021

Willingness to cooperate with authorities in the criminal justice chain: the impact of procedural justice in the Netherlands

Criminological research has emphasized the importance of procedural justice of authorities during encounters with citizens. Theory and prior research propose that the procedurally just treatment by the police influences, possibly via legitimacy, citizens’ willingness to cooperate with authorities in the criminal justice chain. This article tests the hypotheses of procedural justice theory using Dutch data of the European Social Survey (N=1,616). The results show an association between the procedurally just treatment of citizens by the police and cooperation with criminal justice authorities. However, this association has not been explained by the legitimacy of the police.
Mensenhandel en mensensmokkel op Curaçao: een crime-scriptanalyse
Authors: Luisa Zahyanne
Published: May 2021

Human trafficking and human smuggling in Curaçao: a crime script analysis

This article contains the results of a crime script analysis regarding the processes of human trafficking and human smuggling in Curaçao. The crime script analysis was conducted using data from five criminal investigations of human trafficking and seven criminal investigations of human smuggling. The results show that human trafficking in Curaçao consists of labor exploitation and sexual exploitation in bars, cafes and clubs. Young women are recruited from Colombia, Venezuela and the Dominican Republic to work as waitresses, trago girls and/or prostitutes. Once they arrive on the island, the women are dependent on the perpetrators and are subjected to exploitation In this research, two types of human smuggling have been witnessed. The first type consists of Venezuelan smugglers who transport fellow Venezuelan nationals to Curaçao by boat in exchange for payment. The second type of smugglers are Curaçao locals who rent out rooms to Venezuelans that reside on the island illegally.
Bilateral vocal fold paralysis after COVID-19 infection. Another neuro-invasive manifestation? Case series
Authors: Correa Barrera Juan José , Gómez del Pulgar Vázquez Blanca , Orozco Vinasco Adriana , Sánchez Zamora Purificación , Sánchez Solano Sonia , Martos Gisbert Natalia , Saz Castro Rubén , Orozco Vinasco David , San Juan Álvarez Mónica , García Rueda Antonio
Published: May 2021

The agent that causes the coronavirus disease (COVID-19), associated with the severe acute respiratory syndrome (SARS-CoV-2), produces a spectrum of symptoms that mainly affect the respiratory system, the central nervous system (CNS), the regulation of hemostasis and the immune system.

Bilateral vocal fold paralysis (BVFP) is a condition of unknown incidence among infected patients, either because it is short-lived or because of the difficulty in establishing a direct cause to the virus.

Viral infection has been described in the literature as a cause of BVFP and there is the suspicion that a proportion of the idiopathic cases are due to undiagnosed viral infections.

Although the neurotropic mechanisms for SARS-CoV-2 remain unclear, there is strong evidence to ensure its neuroinvasive potential.

The most frequent etiologies of BVFP are trauma, neoplasm, and neurological, but a viral origin should not be ruled out. Causality between COVID-19 and BVFP is plausible and will require further study in the short and long term.
Olympic Winners of Polio Disease
Authors: Kałamacka Ewa
Published: May 2021

The aim of this article is to recall the somewhat forgotten Olympic winners (Ray Ewry, Walt Davis, Wilma Rudolph)
who contracted Heine-Medina disease in their childhood. Thanks to rehabilitation, they regained their temporarily
lost mobility. Physical activity became the meaning of their lives and as adults, they became Olympic champions.
They were true heroes of sport, and thanks to them, sport became richer in personalities, remarkably worth following and giving hope to those who doubt (those ill) their own abilities.
Fog Computing: análise de desempenho computacional
Authors: Foletto Leonardo , Fischer Ivania , Medina Roseclea , Pereira Eder
Published: May 2021

Fog Computing é um tema de grande estudo atualmente, tal tecnologia surge para ser utilizada como uma camada entre os dispositivos Internet das Coisas e a Computação em Nuvem, tendo como objetivo estabelecer comunicações mais ágeis e dispor de um processamento prévio das informações, para após esta etapa enviar informações para Cloud. Porém ainda existem pontos em abertos, como quais dispositivos conseguem suportar o papel de um nodo Fog. Neste artigo será proposto uma análise do poder computacional desses dispositivos e para isso apresenta um cálculo baseado em quesitos de hardware, para assim obter uma métrica concisa dos nodos Fog, sabendo que o mesmo terá um desempenho satisfatório no ambiente IoT o qual foi inserido.
Análise do Desempenho de Heurísticas na Coleta de Informações de Telemetria In-Band
Authors: De Castro Ariel Góes , Vogt Francisco , Lopes Victor Hugo , Da Silva Sérgio Rossi , Lorenzon Arthur , Rossi Fabio , Luizelli Marcelo Caggiani
Published: May 2021

A telemetria in-band surgiu recentemente como uma alternativa ao monitoramento tradicional e permite encapsular informações de monitoramento com uma granularidade mais fina a partir do plano de dados permitindo aumentar o nível de visibilidade fornecido ao operador. Nesse sentido, pouco ainda foi feito para orquestrar a coleta de dados relacionados a telemetria in-band. Neste artigo, propõe-se duas heurísticas online para coletar informações de telemetria baseadas nas estratégias round-robin e least recently collected. Resultados mostram que as heurísticas projetadas conseguem coletar os dados de telemetria com 30% a mais de frequência e com maior uniformidade ao longo do tempo que as abordagens existentes.
Uma Primeira Analise do Ecosistema HTTPS no Brasil
Authors: Escarrone Thiago , Kreutz Diego , Fiorenza Maurício
Published: May 2021

O HTTPS (SSL/TLS) é essencial para garantir a segurança (e.g. confidencialidade dos dados) das comunicações que utilizam o protocolo HTTP na Internet. Entretanto, apesar da crescente adoção do HTTPS, muitos sites ainda não implementam da maneira correta os certificados digitais. Neste trabalho é presentado um primeiro levantamento sobre o estado do ecossistema SSL/TLS no Brasil. Para a análise, foram selecionados 44 sites de instituições financeiras e governamentais, incluindo o governo federal e governos estaduais. Os resultados apontam que a maioria dos sites utilizam ou suportam versões antigas do SSL ou do TLS, que contém vulnerabilidades conhecidas e passíveis de exploração por agentes maliciosos.
Aumentando a produtividade e a segurança da sua empresa com o Sophos XG
Authors: Puntel Marcelo , Luiz José , Nunes Felipe Becker
Published: May 2021

A internet não pode ser considerada lugar 100% seguro, com o avanço tecnológico e cada vez mais usuários nesse universo, os riscos de navegar sem segurança é algo primordial a se considerar nos dias atuais, tanto para o meio pessoal como profissional. Partindo disso, o artigo tem como objetivo mostrar como o tempo ocioso dos colaboradores utilizando a internet na empresa é alto e alertar sobre os perigos das redes e demonstrar porque é tão importante para uma empresa ou para si, a segurança da informação utilizando como ferramenta o Sophos XG. Com isso, a pesquisa foi realizada utilizando cases de empresas que utilizam a ferramenta e, após isso, gerando os resultados necessários através de monitoramentos que resultaram em gráficos que podem ser analisados para atingir o objetivo. Os resultados obtidos demonstram o poder computacional da ferramenta para facilitar o gerenciamento da segurança pelos gestores
Estudo comparativo do módulo rastreador de scanners de vulnerabilidade web de código aberto
Authors: Escudero Danilo Pereira , R. Andrade Ewerton , Terada Routo
Published: May 2021

Scanners de vulnerabilidades web auxiliam na detecção de vulnerabilidades em sistemas web de forma automatizada. Um scanner de vulnerabilidade web é dividido em três módulos: módulo rastreador, módulo atacante e módulo analisador. O módulo rastreador é um dos principais limitadores da eficácia apresentado pelos scanners, pois, se a ferramenta não é capaz de acessar todas as funcionalidades de um sistema web, muitas páginas vulneráveis não serão testadas. Este trabalho apresenta um estudo comparativo do módulo rastreador de scanners de código aberto, sugerindo adaptações para que sejam atingidos melhores resultados.
DVL: Uma Ferramenta para Criação de Laboratórios Práticos de Disciplinas da Área de TI Utilizando Virtualização Baseada em Contêineres
Authors: Da Silva Walafi , Rego Paulo , De Alencar João , Mateus Bruno
Published: May 2021

As práticas de laboratório em disciplinas da área de Tecnologia da Informação (TI) são importantes pois possibilitam ao aluno colocar em prática os conteúdos estudados. Entretanto, muitas instituições de ensino não possuem orçamento para uma estrutura física dedicada para atividades práticos. A virtualização permite a execução de vários sistemas convidados sobre um hospedeiro, reduzindo a infraestrutura física necessária. Nesse contexto, este trabalho apresenta a ferramenta DVL (Docker Virtual Lab), que automatiza a criação de ambientes de estudo utilizando contêineres Docker para criar, executar e gerenciar cenários de forma rápida e acessível.
nsQUIC: Uma Extensão para Simulação do Protocolo QUIC no NS-3
Authors: Couto Yan , Camarinha Diego , Batista Daniel
Published: May 2021

Apesar do TCP fornecer muitas garantias em relação ao UDP, adaptá-lo para novas aplicações pode levar muitos anos. Nesse contexto, o Google desenvolveu o protocolo QUIC, a ﬁm de implementar evoluções mais rapidamente. O Google já vem usando o QUIC sob o HTTP e realizando experimentos de medição, mas estes experimentos são difíceis de serem reproduzidos por diversas razões. Neste artigo, mostramos como contornar essas diﬁculdades por meio de uma nova extensão, não trivial de ser desenvolvida, que adiciona o QUIC ao NS-3. A extensão integra o QUIC como uma nova aplicação do NS-3, substituindo sockets do sistema pelos do simulador e alterando seu comportamento para lidar com passagem de tempo discreta ao invés de contínua.
A High-level Authorization Framework for Software-Defined Networks
Authors: Rosendo Daniel , Kelner Judith , Endo Patrícia
Published: May 2021

Enterprise network managers need to control the access to their network resources and protect them from malicious users. Current Network Access Control (NAC) solutions rely on approaches, such as ﬁrewalls, VLAN, ACL, and LDAP that are inﬂexible and require per-device and vendor-speciﬁc conﬁgurations, being error-prone. Besides, misconﬁgurations may result in vulnerabilities that could compromise the overall network security. Managing security policies involve dealing with many access control rules, conﬂicting policies, rule priorities, right delegation, dynamics of the network, etc. This work presents HACFlow, a novel, autonomic, and policy-based framework for access control management in OpenFlow networks. HACFlow simpliﬁes and automates the network management allowing network operators to govern rights of network entities by deﬁning dynamic, ﬁne-grained, and high-level access control policies. We analyzed the performance of HACFlow and compared it against related approaches.
Topology Control and Opportunistic Routing for Underwater Acoustic Sensor Networks
Authors: Coutinho Rodolfo , Boukerche Azzedine , Vieira Luiz , Loureiro Antonio
Published: May 2021

Underwater wireless sensor networks (UWSNs) are emerging to enable large-scale ocean monitoring with the goal of reducing the human knowledge gap of underwater environments and the life underneath them. However, several challenges still limit the deployments of UWSNs to small-scale and conﬁned underwater monitoring applications. The goals of this thesis are to investigate and develop cutting-edge models, algorithms and protocols in order to tackle the fundamental data communication challenge in the underwater environment and advance the state-of-the-art towards feasible large-scale deployment of UWSN applications.
Avaliação da Performance de Estratégias de Decisão de Mobilidade MADM na Perspectiva da Eficiência de QoE
Authors: Lima Mathews P. S. , Dos Santos Charles H. F. , Silva Felipe S. D. , Venâncio Neto Augusto
Published: May 2021

O estado da arte na avaliação de gerenciamento de mobilidade orientada para a qualidade por meio de técnicas de decisão MADM apenas aborda as medidas dos níveis de Qualidade de Serviço (Quality of Service – QoS) dos pacotes das redes. Nesse sentido, este trabalho preenche esta lacuna através de uma ampla revisão dos métodos MADM aplicados ao processo de decisão de mobilidade orientada para a qualidade por meio da realização de uma avaliação de QoE, centrada no usuário, desses algoritmos em relação ao nosso trabalho anterior: o Extended Elitism for Best Selection (E2BS). A avaliação de QoE é conduzida por meio da ﬂexibilidade provida pelo paradigma de Redes Móveis Deﬁnidas por Software (Software-Deﬁned Mobile Networking – SDMN). Os resultados da análise QoE demonstram que o E2BS supera os métodos selecionados baseados em MADM, melhorando a QoE percebida pelos usuários móveis ao consumir ﬂuxos móveis multimídia.
Recomendação de Conteúdo e QoE: Um Experimento Quantificando o Impacto da QoS nas Preferências por Conteúdos
Authors: Nogueira Mateus , Menasché Daniel , Delgado Carla
Published: May 2021

Sistemas de recomendação estão cada vez mais presentes na rotina de usuários na Internet. Portanto, plataformas como Youtube e Netﬂix buscam aprimorar seus sistemas de recomendação tendo em vista uma melhor experiência para os seus usuários. Porém, a experiência dos usuários depende de inúmeros fatores não apenas relacionados a natureza do conteúdo, mas também a forma como o conteúdo é entregue. Sistemas de cache, por exemplo, também possuem uma grande inﬂuência na qualidade de experiência (QoE) dos usuários, já que podem determinar a qualidade de serviço (QoS) dos conteúdos. Neste artigo, estabelecemos uma relação entre sistemas de recomendação e qualidade de serviço (QoS) tendo em base dados coletados a partir de um experimento realizado de forma remota com participações de diversos usuários, com diferentes perﬁs. Acreditamos que nossos resultados possibilitam abordagens inovadoras no estudo de sistemas de recomendação e algoritmos de caching de forma conjunta. Utilizando árvores de decisão, propomos um sistema de recomendação que leva em conta conjuntamente QoS e a natureza dos conteúdos. Em resultados preliminares, alcançamos uma precisão de 83% em decisões de recomendação baseadas em dados fornecidos por usuários reais que participaram dos experimentos propostos.
»Die Klimaflüchtlinge kommen« – Über die Problematik einer Begrifflichkeit
Authors: Schraven Benjamin
Published: May 2021

Wichtige Forschungserkenntnisse lassen Bedrohungsszenarien eher unrealistisch erscheinen, die davon ausgehen, dass die Erderwärmung schon bald viele Millionen von „Klimaflüchtlingen“ nach Europa treibt. Nach Ansicht des Autors muss die Wissenschaft noch stärker dazu beitragen, alarmistische Szenarien zu überwinden und politische Lösungen für Betroffene des Klimawandels voranzubringen.
»Welche Erwartungen sie an mich haben, weiß ich nicht.«
Authors: Vogler Jens
Published: May 2021

Zivilgesellschaftliches Engagement war und ist unerlässlich, um als Gesellschaft die Herausforderungen zu bestehen, die die (Flucht-)Migration ab 2014 mit sich brachte. Neben den konkreten Tätigkeiten, wie Unterbringung, Versorgung, Begleitung usw., zeigen sich Herausforderungen in der tatsächlichen Ausgestaltung des Engagements zwischen den freiwillig Engagierten und den geflüchteten Menschen.
Journalismus
Authors: Brinkmann Janis
Published: May 2021

Learning journalism made easy: This textbook provides a practical introduction to the current core topics of modern journalism training. Designed for use in journalism courses at universities and colleges, it consistently focuses on journalistic craft: finding and selling topics, researching and verifying information, and casting it into forms of presentation with the help of storytelling. To this end, the processes of multimedia content production are illustrated step by step using clear graphics and current examples. In addition to the media economic and ethical framework in this respect, the book focuses on trends in journalism, such as fake news, digital storytelling and data journalism, or mobile reporting and social journalism.

Dr Janis Brinkmann is a professor of journalism in the digital information economy and teaches the specialist study programme ‘Digital Media and Journalism’ at the Highschool Mittweida.
Datenschutz und Demokratie
Authors: Zimmermann Sören
Published: May 2021

The author confronts the individualistic conception of the data protection law in force with an understanding which also identifies the protection of democracy as a function of data protection and further analyzes how a broader conception could help solving the dilemmas and deficits in effectiveness data protection law has to deal with especially on the internet. The author observes two processes separating like a pair of scissors: an individualization of data protection law on the one hand and risks which increasingly the society and not only individuals on the other. It is this separation which the author identifies as the main problem of the data protection law in force.
Die Nutzung einer Insiderinformation und legitime Handlungen
Authors: Koldehofe Jan-Willem
Published: May 2021

This study is the first monograph in Europe to analyse the criterion of ‘use’ of inside information and the corresponding legitimate behaviour (Article 9 MAR) under the Market Abuse Regulation. The innovative thesis develops a three-stage examination for determining ‘use’, which is further substantiated by case groups. This systematization enables a legally secure, dogmatically consolidated and economically justified distinction between prohibited ‘use’ of inside information and legitimate behaviour. The in-depth analysis of the intervention of the insider dealing prohibition in various M&A transactions, especially in the case of public takeovers, is likely to be of particular interest to practitioners.
Anzeigepflicht für Steuergestaltungen und verbindliche Auskunft nach § 89 Abs. 2 AO
Authors: Kruse Benedikt
Published: May 2021

The scope of application of the duty of disclosure for tax arrangements is not sufficiently tailored to abusive tax arrangements. The aim of this thesis is both to clarify questions of doubt regarding the scope of application of the duty of disclosure for tax arrangements and to submit concrete reform proposals to the national legislator for the further development of the law on binding information. The main consideration of the reform proposal is that, taking into account the regulatory effects of the duty of disclosure for tax arrangements, the legislative objectives pursued with the duty of disclosure can be promoted by granting taxpayers binding information for tax arrangements to be disclosed.
Arganiella Giusti & Pezzoli, 1980 (Caenogastropoda: Truncatelloidea: Hydrobiidae): a widespread genus or several narrow-range endemic genera?
Authors: Delicado Diana , Pešić Vladimir , Ramos Marian A.
Published: May 2021

Most valvatiform genera of the gastropod family Hydrobiidae are narrow-range taxa. One exception is the genus Arganiella, which is comprised of three congeners: the type species A. pescei from the Apennine Peninsula, A. wolfi from the Iberian Peninsula and A. tabanensis from the Balkans. The genus assignment of the latter two species was based on morphological similarities with A. pescei in the shell, operculum, radula and genitalia. Given that the morphology of hydrobiids is sometimes susceptible to convergence, this study re-evaluates the taxonomic status of species of Arganiella by analysing mitochondrial (mtCOI) and nuclear (18S rRNA) sequences of topotypes or near topotypes to infer their phylogenetic position. Our phylogenetic analyses depicted Arganiella as a non-monophyletic group within Hydrobiidae, and sequence divergence among the three species ranged from 14.5 to 16.7% for mtCOI and 2.0 to 3.8% for 18S. We also re-examined the extent of morphological variation among species of Arganiella and found a few differences among them and other valvatiform genera. Consequently, we propose two new genera for A. wolfi and A. tabanensis. Our results conflict with the classification of valvatiform hydrobiid species solely based on traditional phenotypical methods and suggest further taxonomic evaluation within a molecular framework.
A CONSTRUÇÃO DOS MÁRTIRES DA LIBERDADE NO DOCUMENTÁRIO JE SUIS CHARLIE
Authors: Azevedo da Fonseca Andre , Franzon Helene Ayoub
Published: May 2021

Em 2015, um atentado terrorista à sede do semanário satírico francês Charlie Hebdo causou comoção mundial. As manifestações de repúdio à violência fizeram com que a frase “Je Suis Charlie” (Eu sou Charlie) viralizasse pelas redes sociais. Assim, o periódico e os cartunistas assassinados passaram a ser reverenciados como verdadeiros mártires da liberdade. O objetivo desta pesquisa é analisar as mitologias que o documentário Je Suis Charlie (2015) manipulou para reforçar uma conotação sagrada dessa história. Para isso, efetuamos uma análise fílmica a partir da perspectiva da mitocrítica. Concluímos que a narrativa documental foi estruturada de modo a mitificar o periódico a partir do contraste do heroísmo dos cartunistas com um aspecto sombrio do islamismo.
CARTAS DE RECUSA DE UM EDITOR ESCRITOR: A CORRESPONDÊNCIA DE ITALO CALVINO
Authors: Travancas Isabel Siqueira , Lemos Cláudia Regina Fonseca
Published: May 2021

Este trabalho apresenta uma reflexão sobre aspectos do processo de edição a partir da análise de cartas de recusa de originais escritas por Italo Calvino (1923-1985). Calvino, um dos autores mais importantes da Itália no século XX, trabalhou para a editora Einaudi durante 30 anos. O arquivo de sua correspondência inclui cerca de5 mil itens, parte deles publicados postumamente. Num cenário de ainda escassos os estudos sobre o epistolário dos editores, tanto no Brasil quanto no exterior, esta pesquisa contribui para compreensão do universo editorial, da história do livro e também do papel do editor na construção do catálogo de uma editora.A análise das cartas selecionadas, feita à luz do conceito de exatidão na obra Seis propostas para o próximo milênio, mostra como elas sintetizam a visão de Calvino sobre literatura, traduzida em exemplos retirados da análise dos originais submetidos para publicação.
Investigation of potential landslides due to liquefaction on the Balaroa road section using the limit equilibrium method
Authors: Ramadhani Sriyati , Martini M , Labombang Mastura , Anwar Shafira
Published: May 2021

The earthquake on September 28, 2018 in Palu city triggered liquefaction. The liquefaction affected several areas, including Balaroa. Some parts in Balaroa experienced landslide such as the road section which formed the slope. The purpose of this study was to identify the potential of landslides due to liquefaction in Balaroa road section based on numerical modeling using the limit equalibrium method. This study was conducted in Balaroa, West Palu sub district, Palu City, Central Sulawesi Province. The slope stability analysis modelled three locations prone to landslides using the limit equalibrium method assisted by Slide 7.0 program. The results showed the safety factor value of hose three locations in Balora road section using methods of Ordinary, Bishop and Janbu was FS<1. It indicated that the slope is in unsafe condition and vulnerable to lanslides, therefore the government should take this study into consideration.
Project financing through public-private partnerships in Colombia: A look inside of 4G highway concessions
Authors: Duque-Grisales Eduardo , Vargas-Vargas Carolina , Patiño-Murillo Julián , Gonzalez-Ruiz Juan , Becerra Miguel
Published: May 2021

This article analyzes the benefits of the financing scheme through Public-Private Partnerships for the Fourth Generation Highway Concessions Program in Colombia. In this program, the Government of Colombia establishes a concession for 25 years on highways and guarantees income through the Collection Difference Compensation Mechanism in years 8, 13, and 18. A case study is presented on the 4G highway "Autopista al Mar 2" to identify the commercial risks that may be caused by the difference in the collection between the concessionaire and the Colombian government. For this, three traffic scenarios are proposed to evaluate their impact on obtaining the Present Value from Toll Revenue - PVTR. Results show that this highway is financially viable for the base scenario through the project's finance scheme, and the commercial risk is not increased by the collection differences in any of the years 8, 13, or 18. The analysis foresees an additional income for the concessionaire of USD 123.19 million. Similar results were obtained in the optimistic scenario, with an additional collection of USD 655.90 million, which generates additional revenue to the concessionaire for operation and maintenance costs. However, if there is a 30% decrease in the estimated traffic in the baseline scenario, the PVTR will not be reached within 25 years of the concession, and the risk of Collection Difference is activated in the year 18, with an amount of USD 1.11 million; the Colombian State must provide this sum to the concessionaire. Finally, these results help create a roadmap on critical issues that require adjustments or improvements in the financing process to drive the effective development of 4G concessions.
The importance of training and certificates in the access of university graduates to the labour market
Authors: Bartosik Artur , Wiścicka Dorota
Published: May 2021

In the era of growing competitiveness on the labour market, it has become common for students and graduates of higher education institutions to participate in various types of training courses and obtain various types of certificates, which are an additional asset when applying for employment. The interaction of a university with the environment requires constant monitoring of the expectations of labour market. Therefore, the main objective of the paper is to analyse of labour market requirements on additional certified competences of graduates during their studies. The paper attempts to answer the question: whether, and if so, to what extent the training received and the certificates obtained by the potential employee are important from the employer's point of view. The matters raised in it are a contribution to the discussion on the issue of needs and preferences of employers, including the most important aspects that guide them during the recruitment process. The study presents the results of surveys aimed at analysing the preferences of entrepreneurs and other entities in relation to the competences of graduates of universities. The survey method was chosen from among the empirical research methods used, which is characterized by a nomothetical approach, aimed at seeking generalized judgments, laws and rules for a certain class of situations or events. The survey covered not only entrepreneurs, but also representatives of other entities. Random sample selection was adopted for the conducted surveys. Setting the acceptable margin of statistical error at e=5.5%, for confidence level a=0.80 (Z=1.28), response distribution f=0.5 and population size Np=107.798. It has been calculated that the minimum research sample should consist of Nmin=136 employers. The draw was conducted on the basis of a list of all entities of the Swietokrzyskie Region in Poland. The collected quantitative data were analysed. The survey results indicated that employers pay attention to certificates, qualifications, courses and trainings obtained by university graduates. Additionally, graduates should demonstrate some professional experience, therefore student apprenticeships and practical profiles of education are also important. Respondents emphasized the problem of the deficit of the skills of applying knowledge in practice by university graduates, stating the ubiquitous excess of theory over practice.
Scientific Sail Shape Design
Authors: Greeley David S. , Kirkman Karl L. , Drew Alan L. , Cross-Whiter John
Published: May 2021

Perhaps no area of yachting has reached harder for technology, and grasped less, than sail shape design. The combination of the obsession with secrecy, the background and training of those in the business, the economic characteristics of the marketplace, and the intractability of the problems is formidable and has made scientific sail engineering a grail.

This paper will not solve those problems; rather it reports on an attempt to begin an attack on the fundamental problems and to report the outcome. Thus, the paper will:

- describe the fundamentals of the sail shape design problem so that practical sailors can, with some study, grasp the nature and difficulty of the problem to the extent that claims can be evalu­ated thoughtfully; and

- report on a research program intended to put the art onto a solid engineering basis by formulating the problem and beginning work on solutions.
Magic III - An Old Man's Day Sailer
Authors: Miller Richards T. , Whitacre Harold M.
Published: May 2021

Because it has been one of the most successful of International class racing boats, the STAR offers many out-classed but still sound hulls available for recreational sailing. Based on nearly sixty years experience with nine different racing and cruising boats, Dick Miller decided that one of those hulls could be converted to an ideal "old man's" day sailer. The basis for his design, changes made in rig and hull, and the resulting MAGIC III are described in this paper.
The Effects of Flare and Overhangs on the Motions of a Yacht in Head Seas
Authors: Kuhn John C. , Schlageter Eric C.
Published: May 2021

The coupled heave and pitch motions of hull forms with flare and overhangs are examined numerically. The presence of flare and overhangs is numerically modelled with nonlinear hydrostatic and Froude-Krylov forces based on integrals over the instantaneous wetted surface. Forces due to radiation and diffraction are computed with a linear strip-theory. These forces are combined in two coupled nonlinear differential equations of motion that are solved in the time domain with a fourth-order Runge-Kutta integration method. An assessment of the impact of flare and overhangs on motions is obtained by comparing these nonlinear solutions with solutions of the traditional linear equations of motion, which do not contain forces due to flare and overhangs. For an example based on an International America's Cup Class yacht design, it is found that the nonlinear heave and pitch motions are smaller than the linear motions. This is primarily due to reduced first-order response components, which are coupled with nonlinear response components. Comparisons of these results with towing tank data demonstrate that the nonlinear procedure improves prediction quality relative to linear results. In support of this numerical work, the hydrostatic and Froude­Krylov force integrals are expanded in Taylor series with respect to wave elevation. These results indicate how hydrostatic and Froude-Krylov forces change with changing flare and overhang angles, revealing that sectional slope has second and third-order effects on forces while sectional curvature and overhang angles produce third-order effects.
SPLASH Free-Surface Flow Code Methodology for Hydrodynamic Design and Analysis of IACC Yachts
Authors: Rosen Bruce S. , Laiosa Joseph P. , Davis Warren H. , Stavetski David
Published: May 2021

A unique free-surface flow methodology and its application to design and analysis of IACC yachts are discussed. Numerical aspects of the inviscid panel code and details of the free-surface boundary condition are included, along with enhancements developed specifically for the '92 America's Cup defense. Extensive code validation using wind tunnel and towing tank experimental data address several areas of interest to the yacht designer. Lift and induced drag at zero Froude number are studied via a series of isolated fin/bulb/winglet appendages. An isolated surface piercing foil is used to evaluate simple lift/free­surface interactions. For complete IACC yacht models, upright wave resistance is investigated, as well as lift and induced drag at heel and yaw. The excellent correlation obtained for these cases demonstrates the value of this linear free-surface methodology for use in designing high performance sailing yachts.