bluuebunny/crossref_metadata_2025 huggingface dataset:
Source Water Apportionment Using Stable Isotopes for Typical Riparian Plants along the Manas River in Xinjiang, Northwest China
Authors: Ran Maolin , Tian Hao , Yang Guang , Li Xiaolong , Tian Lijun , Kong Chunxian , Liu Bing , Li Pengfei , Xue Lianqing , Li Fadong , Li Yi , Gao Yongli
Published: February 2023

Clarifying the water uptake patterns and competition among riparian plants under different ecological water conveyance conditions is crucial for the stability of the riparian ecosystem in arid areas. Here, we have utilized the Bayesian isotope mixing model to quantify the plant water sources for two typical riparian plants (Tamarix ramosissima and Phragmites australis) along the Manas River in Xinjiang, Northwest China. The water competition relationship between these two typical riparian plants is evaluated using the proportional similarity index (PSI). Our findings demonstrated the following: (1) The climate in the study area is dry and strongly evaporative, and the slope and intercept of the local meteoric water line are smaller than the global meteoric water line. The interconversion between surface water and groundwater occurred mainly in the upper reaches of the river. (2) At the sample site with the long-term ecological water conveyance, the water uptake pattern for typical riparian plants is predominantly shallow soil water or the uniform use of potential water sources. Among them, the utilization rate of shallow soil water reached 30.7 ± 12.6%. At sample sites with intermittent ecological water conveyance and the non-ecological water conveyance sample site, the growth of T. ramosissima and P. australis primarily uses deep soil water and groundwater, with mean values of 34.5 ± 5.1% and 32.2 ± 1.9%, respectively. (3) The water competition between plants at the intermittent ecological water conveyance and non-ecological water conveyance sample sites was more intense. However, the long-term ecological water conveyance effectively reduced water competition among plants. Our results will provide basic theoretical support for maintaining the stability of the Manas River riparian ecosystem and determining environmental flows.
Impacts of Climate Change on Natural Runoff in the Yellow River Basin of China during 1961–2020
Authors: Han Zuoqiang , Zuo Qiting , Wang Chunqing , Gan Rong
Published: February 2023

The change in natural runoff is highly relevant to total river flow dispatch and water resource utilization in the Yellow River Basin (YRB). Based on the annual mean temperature and total precipitation records from 70 meteorological stations from 1961–2020, the impact of climate change on the natural runoff of the YRB is investigated using the Mann-Kendall (M-K) test and Bivariate Wavelet analysis methods. Results show that the annual mean temperature over the YRB increased by 0.33 °C decade−1 during 1961–2020, with a warming rate of more than 0.40 °C decade−1 observed in its northern part. The annual total precipitation increases by 10–20 mm decade−1 in the northwest YRB, while it decreases by 20–30 mm decade−1 in the southeast YRB. The result of the M-K test shows abrupt variations in temperature and natural runoff, especially in the 1980s and 1990s. The decrease in natural runoff is closely tied to the increase (decrease) in temperature (precipitation), especially for the period 1993–2020. The bivariate wavelet coherence analysis further suggests that the decrease in the natural runoff, which has persisted over the past 60 years, is primarily driven by precipitation reduction rather than regional warming. In the stage of rapid warming, the inter-decadal influence of precipitation on natural runoff gradually changes to the influence of inter-annual fluctuation. The finding contributes to providing an important scientific basis for evaluating the optimal allocation of water resources in arid and semi-arid areas against the background of climate change.
Setting a Baseline Residential Water Demand Management Solution in Urban Towns of Ethiopia
Authors: Timotewos Mosisa Teferi , Barjenbruch Matthias , Behailu Beshah M.
Published: February 2023

Due to the country’s expanding population, inadequate urban water management practices, limited community knowledge of water management, and urbanization, urban water management in Ethiopia is of great importance to the administration of the country. This study draws on a qualitative and quantitative research approach to evaluate the available water supply resources and management techniques in three Ethiopian metropolitan districts, factor in the sustainability of the urban water supply services, and then recommend a workable plan for a sustainable urban water management system. Open-ended and semi-structured questionnaires were used to interview urban water utility officials to reveal important information on water demand management and current water supply services. Documented secondary data analysis and field observations are also used to identify the existing problem in order to draw future suggestions. The findings of this study indicate that some of the common issues with urban water supply systems in towns include outdated water supply infrastructures, rapid population growth and corresponding water demand, high water losses in the distribution system, poor water management practices, and a lack of appropriate institutional framework. The assessments of the three study regions demonstrate that while the percentage of water supply coverage hasn’t changed significantly over the previous 10 years, both the number of customers and the overall population growth have increased by nearly 50%. In order to address this, the Ethiopian government would need to put up a lot of effort into developing water use policies and raising consumer understanding of water demand management techniques.
Study on the Occurrence of Artificial Sweeteners, Parabens, and Other Emerging Contaminants in Hospital Wastewater Using LC-QToF-MS Target Screening Approach
Authors: Arvaniti Olga , Gkotsis Georgios , Nika Maria-Christina , Gyparakis Stelios , Manios Thrassyvoulos , Thomaidis Nikolaos , Fountoulakis Michalis , Stasinakis Athanasios
Published: February 2023

The presence of 220 emerging contaminants belonging to different classes (artificial sweeteners, personal care products, coffee and tobacco-related compounds, and industrial chemicals) was investigated in hospital wastewater for the first time. Twenty samples were collected within two sampling periods from two points of a Greek General Hospital. Target compounds were analyzed using a solid-phase extraction protocol followed by UHPLC-ESI-QToF-MS analysis. Analytical results showed that 23 micropollutants were detected at least once in hospital wastewater samples in Period 1, while 27 compounds were detected at least once in Period 2. The coffee and tobacco-related compounds were the most frequently detected substances, followed by artificial sweeteners, parabens, and industrial chemicals. The highest mean concentrations were recorded for the artificial sweeteners cyclamic acid (377 μg/L) and saccharine (295 μg/L), followed by caffeine (193 μg/L), nicotine (162 μg/L), and the industrial chemical lauryl diethanolamide (153 μg/L). The group of artificial sweeteners contributed up to 55.1% (Point A/Period 1) to the total concentration of studied chemicals. The detection of high concentrations of artificial sweeteners in hospital effluents reveals that hospitals should be considered as important point-sources of these contaminants.
Effects of COVID-19 on Kenya’s Healthcare System: Healthcare Providers’ Experiences with Maternal Health Services Utilization in Coastal Kenya
Authors: Ombere Stephen Okumu , Nyabundi Agnetta Adiedo
Published: February 2023

The COVID-19 pandemic overstretched health systems in developed and developing nations. Like other African nations, Kenya has a frail health system, making responding to the pandemic a problem. Recent studies during COVID-19 have shown that Kenya’s health systems were either strained to their maximum capability or worse in handling patients. Therefore, citizens were advised not to go to the hospital unless necessary. This advice applies to all, including pregnant mothers. This article utilized the anthropological description of the healthcare system, viewed as a cultural system attached to particular provisions of social institutions and forms of social connections. It is a social and cultural system in origin, structure, function, and significance. In every society, healthcare systems are forms of social reality in which they embody specific social roles and relationships between these roles. There is a dearth of information on how healthcare providers experienced the effects of COVID-19 on Kenya’s healthcare system, which this study addresses for those in Coastal Kenya. This rapid qualitative study utilized data from sixteen purposefully selected healthcare providers in charge of various departments in Kilifi County of Coastal Kenya. We utilized thematic analysis and textual description to present our findings. It emerged that there was a diversion in resources allocated for maternal health programs, health facilities were temporarily shut down due to inadequate resources and equipment for health workers, there was a lack of preparation by health workers, there was a reduced flow of pregnant mothers and missing scheduled appointments for ante- and postnatal clinics, maternal mortality increased, and mothers resorted to traditional midwives for deliveries. These findings show that maternal health services were negatively affected. Thus, the government needs to institute alternative measures for continued access to maternal health services during pandemics. We recommend expanding and supporting the existing community midwifery model (CMM). For instance, incorporating community health workers (CHWs) and other local health institutions in the community, such as traditional birth attendants (TBAs), and creating midwifery centers managed by trained midwives in communities.
INFLUENCE OF SOCIAL MEDIA MARKETING ON TOURIST VISIT INTENTION TO PARI ISLAND, THOUSAND ISLAND
Authors: Adzra Muthi'ah Hafizhah  , Beta Budisetyorini  , Sumaryadi
Published: February 2023

One of the government's efforts to increase tourist visits is by doing digital marketing. Digital marketing is also carried out by the SUDINPAREKRAF Thousand Island to increase the number of tourists to Pari Island. Pari Island is one of the resident islands on Thousand Island. Starting from 2018 until now there has been a decline in the level of tourist visits to Pari Island caused to natural disasters. Even so, other resident islands in the Kepulauan Seribu have more tourist visits than Pari Island. In 2020, the SUDINPAREKRAF Thousand Island held technical guidance on using social media as a tool to market Pari Island. This study aims to explain the influence of social media marketing on interest in visiting Pari Island, Thousand Island. This study uses a quantitative approach through a verification method based on probability sampling of the population. The number of respondents in this study was 150 who were obtained through an online questionnaire and were taken according to the target market of the SUDINPAREKRAF Thousand Island. The data obtained were processed using SPSS, interval successive method (MSI), descriptive statistical analysis, and simple regression. The results of this study indicate that social media marketing has a significant effect on interest in visiting Pari Island, Thousand Island.
YOGYAKARTA CITY AS A SMART DESTINATION TOURIST
Authors: Alvin Giovanni , Budisetyorini Beta , Sopian Tatang
Published: February 2023

The application of smart cities has become a trend in regional planning in Indonesia. The current condition of urban development planning is more focused on environmental and social aspects of sustainability of the problems of today which are directly related to problems urban. Such as the decline in the quality of public services, the reduced availability of land settlements, road congestion, difficulty finding parking spaces, increased consumption of energy, waste pollution, increased crime rates, and other social problems. Thus, to be able to solve these problems, planning is needed One of the smarter developments is through smart cities. One of the development sectors which has become a priority for the last 5 years is the tourism sector. Where in the field tourism is known as the Smart Tourism concept. In Indonesia Smart City Index Year 2018, the city of Yogyakarta is ranked third in the medium city category. So that this research in the end will answer the readiness of the City of Yogyakarta as a Smart Tourism Destination. This research is based on three variables, namely, smart service, smart marketing, and smart service management. In this study, the researcher used a qualitative descriptive analysis. Study This study was conducted on July 30, 2019, to August 10, 2019. Participants in the study It is divided into two, namely enterprise and government. Enterprise participants include Museum Fort Vredeburg, Smart Park, Aisya Tour, Zaza Tour, Cabin Hotel, Paku Mas Hotel, Hamzah Batik, Beringharjo Market, and for the government, namely the Yogyakarta City Tourism Office. Results from this study show that enterprises and governments are still not ready to become smart tourism destinations. The results of this study are expected to be an input for the enterprise and the government in the city of Yogyakarta to be able to implement smart tourism in the future
Dampak Konferensi Internasional “Infinity Experience of Nature and Sport tourism” Terhadap Pengembangan Sport Tourism Kawasan Ekonomi Khusus Mandalika
Authors: Rahmadio Lalu Syafril
Published: February 2023

Mandalika area is special place with beautiful nature and local wisdom, it gives different experience for tourist. Tourism sector is foreign exchange earner beside oil-gas sector. In 2019, tourism sector contributed foreign exchange of 229,50 trillion rupiah. However, with the pandemic Covid-19, tourism sector in Mandalika experienced a sharp decline. Various efforts were made by the local government to revive tourism sector in Mandalika during pandemic, including by making sport tourism a new icon of Mandalika tourism. Development of international circuit Mandalika also strengthen the branding of “Mandalika Experience” to attract more foreign tourists to come to Mandalika. This study aims to explore the impact of sport tourism development in Mandalika in taking the target market and forming a market tourist who are interested in sport tourism activities. Analysis method in this study using descriptive qualitative method which obtained from secondary data from social media and online news portal. The result of this study shows that the impact of sport tourism theme that revive tourism sector in Mandalika is very positive. There is an increase in tourist arrivals during World Superbike Championship event, but there are still many evaluations that must be improved so that international events that will be held in the future will can increasing the NTB local economy.
Strategi Pengembangan Produk Paket Wisata (Studi Kasus di PT. Viva Wisata Indonesia)
Authors: P. Supriadi R. Anggi
Published: February 2023

Business competition in the travel industry is increasingly sharp and fierce. The role of conventional travel agents began to be replaced by online travel agents through various products supported by an application. But not all travel company products are controlled by online travel agents, likes tour package products. The purpose of this research is to produce a tour package product development strategy that can be used by PT. Viva Wisata Indonesia, as well as conventional travel agents in general, in the face of competition problems, especially facing online travel agents. Not all products in the travel industry can be serviced according to the technology sistem, such as tour package products, there are many factors that cause these products to require touch and communication between humans. Tour package products which consist of various components of tour packages, in the preparation and planning require continuous communication to get the necessary details so that the packages produced are in accordance with the needs of consumers. The suggestions that can be given from this research are related to strategies in developing tourism package products in order to remain competitive in the future, such as market expansion so that the products produced are more varied, making product variations between ready packages and tailor-made, and the formation of creative teams related to the preparation of tour packages that are in accordance with the current trends.
Masa Depan Hybrid Exhibition dari Perspektif Pelaku Industri
Authors: Andrianto Tomy , Noor Any Ariani , Trihartanty Ratna Padmi , Erwin Tamara Herlinda , Chendraningrum Dinarsiah , Hastuti Sri , Firmansyahrani Sherinatasha
Published: February 2023

Hybrid Exhibition atau Pameran yang dilaksanakan Hibrida secara luring dan daring menjadi trend dan berkembang pesat saat Pandemi Covid-19 terjadi terutama pada tahun 2021. Pembatasan bahkan pelarangan berbagai kegiatan perhelatan termasuk kegiatan pameran mendorong berbagai cara termasuk munculnya inovasi teknologi yang mendukung pameran hibrida. Penelitian ini bertujuan untuk memahami pandangan pelaku industri MICE terhadap pengembangan hybrid exhibition saat ini dan masa depan. Metode penelitian menggunakan pendekatan kualitatif dengan analisis deskriptif dari data yang dikumpulkan melalui wawancara mendalam dan diskusi kelompok menggunakan teknik delphi. Narasumber yang diwawancarai pada penelitian ini adalah tiga pemimpin perusahaan MICE dan satu praktisi penyedia jasa hybrid sedangkan peserta diskusi adalah 5 pimpinan dan dua narasumber ahli dari akademisi. Pengkodean tematik dengan melakukan analisis pengkodean satu siklus menemukan bahwa inovasi teknologi yang sudah dikembangkan belum siap dijalankan ketika masa kenormalan baru terjadi dan pulih nanti. Pelaku Industri melihat penggunaan inovasi teknologi pameran hibrida hanya salah satu pendukung yang memberikan nilai tambah khususnya untuk pasar B2B, namun belum bisa diandalkan menjadi kunci utama suksesnya pameran. Inovasi teknologi yang ada belum mampu menggantikan pengalaman sesungguhnya bahkan bisa jadi tidak akan pernah bisa mengganti suasana pameran secara luring di masa depan.
Studi Komparatif Penurunan Pendapatan Pada Wisata Pantai Alami dan Amenitas Wisata Pantai Akibat Pandemi Covid-19
Authors: Endang Gunaisah  , Poltak Hendra , Ismail
Published: February 2023

Pandemi Covid-19 tidak hanya berdampak pada Kesehatan manusia, namun memberikan dampak pada semua bidang perekonomian, tidak terkecuali bidang pariwisata.  Penelitian ini merupakan penelitian kuantitatif komparatif yang bertujuan untuk  mengetahui perbandingan rata-rata penurunan pendapatan sebelum dan sesudah Covid-19 pada 12 destinasi pelaku usaha wisata pantai alami dan 5 destinasi pelaku usaha wisata pantai amenitas di Kota Sorong. Sampel penelitian seluruh populasi destinasi wisata pantai di Kota Sorong berdasarkan data sekunder yang diperoleh dari Dinas Pariwisata. Hasil penelitian diperoleh bahwa secara signifikan rata-rata penurunan pendapatan pelaku usaha wisata amenitas lebih besar dari pada rata-rata penurunan pendapatan pelaku usaha wisata alami. Perbedaan disebabkan karena pelaku usaha wisata dengan amenitas lebih responsif untuk menutup tempat wisatanya selama himbauan pemerintah dari pada tempat wisata alami.
Variasi Sentimen Pantai Wisata dari Tweet Berbahasa Indonesia
Authors: Wicaksono Arief , Khakhim Nurul , Farda Nur Mohammad
Published: February 2023

Twitter menjadi wadah bagi netizen untuk menyampaikan pendapat dan perasaannya terhadap situasi yang terjadi di masyarakat, termasuk fenomena pembatasan berkerumun dan bepergian untuk wisata. Analisis sentimen menjadi pendekatan untuk memperoleh, mengubah, dan menginterpretasi pendapat netizen dalam tweet mengenai pantai wisata. Penelitian ini mengkaji ketersediaan data Twitter untuk analisis variasi sentimen pantai wisata di Desa Parangtritis, Kabupaten Bantul pada tiga periode analisis, yaitu sebelum Covid-19, selama penutupan lokasi wisata, dan setelah pembukaan kembali lokasi wisata. Crawling tweet dilakukan dengan menjalankan script Python GetOldTweets. Kata kunci pencarian tweet menggunakan nama pantai yaitu Pantai Parangtritis, Parangkusumo, Cemara Sewu, Pelangi, dan Depok. Analisis sentimen dilakukan dengan metode lexicon-based menggunakan kosa kata positif dan negatif berbahasa Indonesia yang disusun oleh masdevid. Kata dominan pada tweet setiap pantai wisata divisualisasikan dengan wordcloud. Tweet yang digunakan untuk analisis hanya sebanyak 4.848 tweet (25,64%) dan tidak satupun memuat informasi koordinat. Isi tweet bervariasi mulai dari ciri khas, daya tarik wisata, kenangan netizen, serta fenomena yang terjadi di pantai wisata. Sentimen semua pantai wisata, selain Pantai Parangkusumo, pada tiga periode analisis bervariasi dan cenderung memiliki sentimen negatif setelah pembukaan wisata. Pantai Parangkusumo selalu memiliki sentimen positif pada tiga periode analisis.
Manajemen Kontinuitas Bisnis Badan Usaha Milik Desa di tengah Covid-19
Authors: Ella Susy , Novi Andari Rosita
Published: February 2023

Penelitian ini bertujuan untuk mendeskripsikan dan menganalisis secara mendalam faktor-faktor yang berperan pada kemajuan Badan Usaha Milik Desa (BUMDes) Guha Bau dalam pemberdayaan ekonomi desa, serta strategi mempertahankan usahanya akibat Covid-19. Penelitian ini menggunakan pendekatan deskriptif kualitatif dengan metode studi kasus. Hasil penelitian menunjukkan bahwa BUMDes Guha Bau mempunyai peran penting dalam pemberdayaan ekonomi Desa Kertayasa karena dapat menyerap tenaga kerja, meningkatkan pendapatan desa dan masyarakat, serta berkontribusi dalam pembangunan desa. Faktor penting kemajuan BUMDes adalah landasan hukum, partisipasi pemangku kepentingan, media komunikasi, pemberdayaan masyarakat sekitar, pemanfaatan teknologi, dan terjalinnya kerjasama Penta helix. BUMDes Guha Bau belum cukup tanggap menghadapi perubahan kondisi akibat Covid-19 dan belum memiliki strategi dan rencana kesinambungan usaha yang proaktif untuk menghadapi berbagai potensi ancaman dan saat krisis.
TRANSFORMADA INVERSA DE LAPLACE APLICADA A PREDICÃO DO DESLOCAMENTO DE FASE EM GERACÃO DISTRIBUÍDA
Authors: Finkler Alcedir , De Campos Maurício , Sausen Paulo Sérgio , Sausen Airam
Published: February 2023

A geração de energia elétrica utilizando biogás em propriedades rurais tem sido amplamente pesquisada nos últimos anos. Diversos são os estudos demonstrando sua viabilidade técnica, econômica e benefícios ao meio ambiente. Esse tipo de geração, conhecida como geração distribuída (GD), é normalmente realizada por meio de máquinas síncronas. A GD apresenta vantagens, porém, pode trazer alguns inconvenientes como o risco de alimentar um trecho de rede durante uma manutenção (operação ilhada). Para impedir que isso ocorra, as GDs devem possuir proteções que permitam identificar a perda de conexão com a rede. Entre os métodos de identificação está o relé de salto de vetor. Esse dispositivo monitora a tensão da rede identificando uma operação ilhada em função do deslocamento de fase que ocorre no momento de um ilhamento. Para utiliza-lo é preciso definir os parâmetros a serem ajustados nesse relé. Essa atribuição fica a cargo dos técnicos e engenheiros que atuam no projeto para interligação das GDs as redes de distribuição. Falta na literatura um método claro que oriente-os na escolha desses parâmetros. Nesse documento é demonstrado que o deslocamento de fase pode ser previsto conhecendo os parâmetros da função de transferência da máquina síncrona. Aplicando a transformada inversa de Laplace a essa função de transferência é possível obter a equação no tempo e assim, prever o deslocamento que ocorre logo no primeiro ciclo de rede após o ilhamento.
PROPOSTAS DE ESTÁGIOS NOS CURSOS DE LICENCIATURA EM MATEMÁTICA EM UNIVERSIDADES PÚBLICAS DA REGIÃO SUDESTE DO BRASIL
Authors: Cristovão Eliane Matesco , Fabiana Fiorezi de Marco  , Ana Teresa C. C. de Oliveira  , Fabiana Chagas Andrade
Published: February 2023

Neste artigo, apresentamos um recorte da pesquisa nacional intitulada “A formação inicial de professores que ensinam matemática: a Licenciatura em Matemática no Brasil em 2019”, e voltamos nosso olhar para as propostas de Estágio Curricular Supervisionado apresentadas nos Projetos Pedagógicos de Curso (PPC) das Licenciaturas em Matemática presenciais em Universidades Públicas da Região Sudeste. Dessa forma, o objetivo do artigo é apresentar um breve panorama das propostas de estágio e analisar as que indicam aspectos considerados inovadores, de acordo com o lugar e a importância atribuídos a essa componente curricular no curso. De caráter qualitativo e documental, esta pesquisa tem como corpus de estudo os PPC de 31 cursos que se adequaram à Resolução CNE/CP 02/2015. Os resultados apontam que, praticamente, 50% das universidades ainda mantêm o estágio como componente isolado, ou seja, o momento da prática, sem a necessária articulação com a teoria, mas há propostas que podem orientar mudanças significativas, e algumas capazes de desconstruir o modelo “3+1”, e que buscam formar o professor como profissional intelectual crítico reflexivo.
Editorial do Dossiê Temático: Os cursos de Licenciatura em Matemática do Brasil e a Resolução CNE/CP n.º 02/2015
Authors: Santana Flávia Cristina de Macêdo , Coura Flávia Cristina Figueiredo , de Paula Enio Freire
Published: February 2023

Editorial do Dossiê Temático: Os cursos de Licenciatura em Matemática do Brasil e a Resolução CNE/CP n.º 02/2015.
PNAIC E PNA EM ANÁLISE
Authors: Lima Severino Daniela , Maria Braga Silva Jane
Published: February 2023

Este artigo tem como objetivo analisar as concepções da área de Alfabetização Matemática presentes no Caderno de Apresentação do Pacto Nacional pela Alfabetização na Idade Certa (BRASIL, 2014) e no Caderno de Apresentação da Política Nacional de Alfabetização (BRASIL, 2019). Referem-se a documentos de políticas brasileiras que merecem destaques, o primeiro devido à sua abrangência e suas repercussões e o segundo pela atualidade e necessidade de criticidade dessa área. Nesta pesquisa de abordagem metodológica qualitativa utilizou-se a análise documental como ferramenta fundante. Os referenciais teóricos deste estudo estão ancorados em autores que vislumbram essa área como uma das ferramentas importantes, as quais oportunizam os sujeitos refletirem e transformarem as realidades circundantes. Os resultados da pesquisa revelam que o PNAIC se encontra em consonância com as atuais investigações que versam sobre a alfabetização matemática, uma vez que assumiu uma perspectiva de educação necessária para a superação das desigualdades sociais. Observou-se uma carência de estudos que tenham como enfoque a atual Política Nacional de Alfabetização (PNA), necessitando de reflexões críticas e pesquisas por parte dos professores sobre essa política. Percebeu-se que a PNA além de apresentar proposições de terminologias como numeracia, esvazia a educação das massas ao defender uma visão reduzida de alfabetização matemática.
REFLEXÕES E PROPOSIÇÕES SOBRE A ORGANIZAÇÃO DO ENSINO DE MATEMÁTICA NA EDUCAÇÃO INFANTIL
Authors: Santos Edilson de Araújo dos , Lacanallo Arrais Luciana Figueiredo , Silva Diogo Almeida e
Published: February 2023

Reconhecendo o estágio como atividade de pesquisa, este artigo tem como objetivo expor uma experiência sistematizada a partir de uma intervenção de estágio obrigatório elaborada por acadêmicos do curso de Pedagogia de uma universidade pública localizada na região noroeste do Paraná. Fundamentados nos pressupostos da Teoria Histórico-Cultural e da base teórico-metodológica Atividade Orientadora de Ensino, organizamos uma situação desencadeadora de aprendizagem envolvendo os conceitos de medida de massa e comprimento. Os resultados obtidos evidenciaram as manifestações de aprendizagem das crianças e dos acadêmicos a respeito das relações entre as grandezas potencializadas pelas ações educativas propostas.
A LEITURA DE IMAGENS COMO MEDIADORA DA INTEGRAÇÃO ENTRE ARTE E MATEMÁTICA: REFLEXÕES E ENCAMINHAMENTOS PEDAGÓGICOS
Authors: Abreu Mendes Iran , Lúcia Dias Vaz Cristina , Dos Passos Neri Junior Edilson
Published: February 2023

O presente artigo objetiva veicular os resultados parciais de uma pesquisa de doutoramento, cujo escopo é investigar como a Arte e a Matemática se transversalizam e o potencial pedagógico da integração de saberes dessas disciplinas para o ensino e aprendizagem de matemática, materializado nas obras de arte de Almada Negreiros e objeto matemático da curva plana. A proposta de leitura artístico-matemático que apresentamos tem como preceito teórico o conceito de interdisciplinaridade (POMBO, 1993) somado aos de semiótica peirciana a partir de Santaella (2012, 2018), o qual se materializa na leitura da obra "Expulsão de Adão e Eva do Paraíso" (1952), em diálogo com a geometria da espiral áurea. Os resultados apontam que o processo de leitura proposto contribui para um ensino de matemática mais significativo e contextualizado, bem como pode ser adotado como encaminhamento didático, na educação básica e no ensino superior, para o ensino de conceitos e ideias matemáticas, contribuindo para processo de ensino e aprendizagem ativo, inovador e criativo.

Palavras-chave: arte e matemática; Almada Negreiros; curva plana; interdisciplinaridade; semiótica.
TRANSFORMAÇÕES LINEARES EM NOVAS ESTRUTURAS DE ESPAÇOS VETORIAIS
Authors: RUFINO ELZIMAR DE OLIVEIRA
Published: February 2023

Uma questão de nosso interesse neste trabalho é investigar as transformações lineares em espaços vetoriais cujas estruturas são construídas via bijeções e, em particular em espaços vetoriais do tipo gráfico. Apresentamos resultados e exemplos que mostram como construir transformações lineares nos referidos espaços vetoriais.
Anti-American Stance in Turkey: A Twitter Case Study
Authors: Prathap Gowri , Kavak Hamdi , Kaya Ekrem , Palmieri Luke , Karahan Saltuk , Korb Alex
Published: February 2023

The availability of social media and biased actors exacerbated Anti-American and Anti-Western views to extremes. In this paper, we report our efforts in analyzing anti-American views on Twitter. We have collected over three years of Turkish tweets related to the US, translated them into English, and analyzed these tweets using various computational social science tools. We found that Turkish tweets related to the US are significantly negative, and emotions reflect disgust and anger. Furthermore, we found that the source of the negative views stems from political actors like Trump or Biden rather than general hatred. Our results shed light on potential policy plans and interventions.
Cybersecurity in Digital Transformation applications: Analysis of Past Research and Future Directions
Authors: Belkhamza Zakariya
Published: February 2023

The term digital is often used to indicate the changes occurring in today’s world, generally referred to as a cyber-physical system, driven by the rapid adoption of digital technologies, where the cyber and the physical worlds are partly overlapping. Digital transformation refers to the integration of the digital technology of the cyber world into all physical domains. These cyber-physical systems must be secure against the threat of cyberattacks. However, one of the most challenging aspects of cybersecurity is the evolving nature of cyberattack risks, which is highly integrated with digital transformation. Despite a number of published articles, there is little investigation of past literature analysis that presents digital transformation applications and cybersecurity trends. The objective of this paper is to provide an intensive examination of digital transformation applications and cybersecurity research between 2019 and 2022, to detect the most profound research areas, emphasize existing challenges and identify patterns, tendencies or regularities existing in the literature in terms of technological applications. This aims to support scholars with a comprehensive understanding of the past, present and future directions of this research trend. To achieve these objectives, a systematic literature review is utilized. The findings introduce several implications for the present state of the literature, apparent study gaps and several research questions, which can be explored in future research.
Review of End-to-End Encryption for Social Media
Authors: Bhuse Vijay
Published: February 2023

People have valid concerns about their privacy and the use of their personal information by corporations. People do not necessarily trust social media companies to protect their right to privacy. Social media companies are under pressure to provide greater levels of security and privacy to their users. The current gold standard of security protocols for messaging system is the Signal Protocol. The Signal protocol is an open-source end-to-end encryption model. It uses AES-256, HMAC-SHA256 and Curve25519 as its cryptographic primitives. This protocol is currently considered cryptographically sound and provides excellent information security. However, many social media companies are still using less secure protocols often underpinned by less secure primitives. This paper discusses in detail the various cryptographic primitives used in social media apps like WhatsApp, Twitter, Facebook, Snapchat and Instagram.
Search and CompAre Reverse (SCAR): A Bioinformatics–Inspired Methodology for Detecting File Remnants in Digital Forensics
Authors: Grispos George , Mahoney William , Mandal Sayonnha
Published: February 2023

A storage device may contain data that an individual is legally or morally not allowed to possess. Or, a disgruntled company employee may intentionally destroy corporate files, assuming once deleted the information is lost forever. The data could take the form of a database owned by a competitor, illegal images, or videos, or trade secrets or confidential business information. Fragments of the data may very well still be present on the disk drive, for example, and forensic tools may be capable of recovering some of the confidential information. This paper introduces Search and CompAre Reverse (SCAR), inspired from tools used in the bioinformatics community. The contribution is an initial empirical investigation into the use of this bioinformatics-inspired approach to deduce the partial existence of patterns in cases where traditional digital forensics tools cannot detect the type of the file due to overwriting the file signature portion of the file.
Secure Cloud Migration Strategy (SCMS): A Safe Journey to the Cloud
Authors: Alharthi Dalal
Published: February 2023

The state of cloud security is evolving. Many organizations are migrating their on-premises data centers to cloud networks at a rapid pace due to the benefits like cost-effectiveness, scalability, reliability, and flexibility. Yet, cloud environments also raise certain security concerns that may hinder their adoption. Cloud security threats may include data breaches/leaks, data loss, access management, insecure APIs, and misconfigured cloud storage. The security challenges associated with cloud computing have been widely studied in previous literature and different research groups. This paper conducted a systematic literature review and examined the research studies published between 2010 and 2023 within popular digital libraries. The paper then proposes a comprehensive Secure Cloud Migration Strategy (SCMS) that organizations can adopt to secure their cloud environment. The proposed SCMS consists of three main repeatable phases/processes, which are preparation; readiness and adoption; and testing. Among these phases, the author addresses tasks/projects from the different perspectives of the three cybersecurity teams, which are the blue team (defenders), the red team (attackers), and the yellow team (developers). This can be used by the Cloud Center of Excellence (CCoE) as a checklist that covers defending the cloud; attacking and abusing the cloud; and applying the security shift left concepts. In addition to that, the paper addresses the necessary cloud security documents/runbooks that should be developed and automated such as incident response runbook, disaster recovery planning, risk assessment methodology, and cloud security controls. Future research venues and open cloud security problems/issues were addressed throughout the paper. The ultimate goal is to support the development of a proper security system to an efficient cloud computing system to help harden organizations’ cloud infrastructures and increase the cloud security awareness level, which is significant to national security. Furthermore, practitioners and researchers can use the proposed solutions to replicate and/or extend the proposed work.
Modelling the Influential Factors Embedded in the Proportionality Assessment in Military Operations
Authors: Maathuis Clara , Chockalingam Sabarathinam
Published: February 2023

The ongoing decade was believed to be a peaceful one. However, contemporary conflicts, and in particular, ongoing wars prove the opposite as they show the increase in context complexity when defining their goals as well as execution strategies for building means and methods for achieving them by gaining advantage against their adversaries through the engagement of well-established targets. At the core of the engagement decision relies the principle of proportionality which brings in a direct relation the expected unintended effects on civilian side with the anticipated intended effects on military side. While the clusters of effects involved in the proportionality assessment are clear, the process itself is subjective, governed by different dimensions of uncertainty, and represents the responsibility of military Commanders. Thus, a complex socio-technical process where different clusters of influential factors (e.g., military, technical, socio-ethical) play a role in the decisions made. Having said that, the objective of this research is to capture and cluster these factors, and further to model their influence in the proportionality decision-making process. This decision support system produces military targeting awareness to the agents involved in the processes of building, executing, and assessing military operations. To accomplish the aim of this research, a Design Science Research methodological approach is taken for capturing and modelling the influential factors as a socio-technical artefact in the form of a Bayesian Belief Network (BBN) model. The model proposed is further evaluated through demonstration on three different cases in respect to real military operations incidents and scenarios existing in the scientific literature in this research field. Hence, through this demonstration, it is illustrated and interpreted how the factors identified influence proportionality decisions when assessing target engagement as being proportional or disproportional. In these cases, corresponding measures for strengthening proportionality and reducing disproportionality in military operations are considered.
Digital Geopolitics: A Review of the Current State
Authors: Huskaj Gazmend
Published: February 2023

The purpose of this research product is to present the current state of digital geopolitics. Digital Geopolitics is attracting much attention. It features in national digital strategies (for those countries that have those), and there is some research on the topic. However, until now, no systematic and up-to-date review of the scientific literature on digital geopolitics exists. This article reviews the scientific literature using the computational literature review method. 124 articles were identified in a scientific database. After removing articles without author and abstract, 120 articles remained to read, cluster and present in this research product. The findings present that research output increases from 2015 and onwards, 53 topics are covered in the data set, and top cited articles and top publication venues are presented. The answer to the research question is that based on the results and the manual clustering of topics, it is indicative that the Technology, Informational, Geography are Security areas have a high focus, with less focus on, for example, political and health areas.
UAV Payload Identification with Acoustic Emissions and Cell Phones
Authors: Doster Hunter , Mullins Barry
Published: February 2023

The growing presence of Unmanned Aerial Vehicles (UAVs) in all sectors of society poses new security threats to civilian and military sectors. In response, new UAV detection systems have and are being developed. Current systems use techniques such as Radio Detection And Ranging (RADAR), visual recognition, and Radio Frequency (RF). Another promising solution for UAV detection uses acoustic emissions. Past researchers demonstrated the ability to use UAV acoustic signatures to determine whether a UAV carries a payload and the weight of that payload at close range with high-quality microphones. This research expands the field of study by performing acoustic payload detection using cell phones and at farther range by developing the system called HurtzHunter. The system collects audio data and extracts Mel-Frequency Cepstrum Coefficients (MFCCs) to train Support Vector Machines (SVMs). The HurtzHunter system tests acoustic payload detection with one high-quality microphone and six different cell phones at 7 m - 100 m ground distance from the UAV. At each distance, the experiment runs 6 flights each with a unique payload attached to the UAV. The HurtzHunter design achieves an 88.26% - 99.93% payload prediction accuracy depending on the configuration.
The Impact of Edge Computing on the Industrial Internet of Things
Authors: Sekonya Nkata , Sithungu Siphesihle
Published: February 2023

The emergence of the Industrial Internet of Things (IIoT) has improved the management of industrial operations and processes. IIoT involves collecting and processing data from a vast array of sensors deployed across industrial complexes. This enables the measurement of the efficiency of industrial processes, monitoring the health of machinery, optimisation of operations, and response to real-time events. In its application, IIoT underpins the operation of critical infrastructure in sectors including manufacturing and utilities. Maintaining the availability and resilience of critical infrastructure against internal and external threats is essential to minimise disruptions that could have a debilitating effect on a nation’s economy. Although internal threats can lead to a critical infrastructure’s downtime, external threats through cyberattacks also pose a significant threat. Historical events have demonstrated that the successful disruption of critical infrastructure can lead to the loss of human life, the interruption of necessary economic activities and national security concerns. Therefore, the availability of resilient critical infrastructures is vital to the well-being of a country. In this context, the paper compares the deployment of traditional IIoT to that of edge computing for the storage and processing of data. Traditional IIoT relies on a centralised server for data storage and processing, which is insufficient as IIoT environments cannot tolerate delays in responding to real-time events. Conversely, edge computing allows for data processing at the edge, closer to the data source, which plays a crucial role in enabling IIoT devices to respond to real-time events by reducing decision-making latency. Moreover, the decentralised nature of edge computing reduces the reliance on a centralised server by only sending required data to the cloud for further processing. Although edge computing enhances IIoT deployments, a notable concern is a resultant increase in the attack surface of IIoT environments, which consequently restricts its implementation. Exploratory research is conducted to explore the integration of edge computing into IIoT environments with a focus on improving the management and operation of critical infrastructures. A review of the current literature is performed to identify and discuss security concerns prevalent in edge computing-enabled IIoT environments and proposed mitigation strategies.
Russian Influence Operations during the Invasion of Ukraine
Authors: Littell Joseph , Starck Nicolas
Published: February 2023

Prior to their invasion of Ukraine, the Russian Federation was seen as having a vastly superior ability to conduct operations in the information environment, particularly their ability to influence foreign audiences, when compared to their western counterparts (Cunningham, 2020). However, the efforts of Ukraine, NATO allies, and other aligned nations to conduct operations in the information environment with intelligence pre-bunking, traditional diplomacy, and sanctions, blunted many of Russia’s best efforts. Further tactical and operational failures from the Armed Forces of the Russian Federation also undercut the salience of Russian messaging campaigns. This does not mean that Russia’s efforts in the informational environment fully failed or did not adapt to these actions in the lead-up and continuation of the war. Through the use of the Natural Language Processing (NLP) technique transformer-based topic modeling (Grootendorst, 2022) and the causal inference technique Bayesian Structural Time Series analysis (Brodersen, 2015) this paper looks to both qualitatively and quantitatively examine how Russian state media on Twitter reacted, changed narratives, and focused efforts regionally from January 1st through September 1st, 2022. Through this analysis we argue that Russian efforts in Europe may have been of limited success. We further argue that by shifting focus, Russia gained influence in South America, and Middle East and North Africa, where their influence operations faced minimal obstructions, such as sanctions, and a latent anti-western sentiment.
Organizational Cybersecurity Post The Pandemic: An Exploration of Remote Working Risks and Mitigation Strategies
Authors: Treacy Stephen , Sabu Anoop , Bond Thomas , O'Sullivan Joseph , Sullivan Jack , Sylvester Peter
Published: February 2023

The Covid-19 pandemic has forced organisations to embrace the largest remote workforce in history, yet this upheaval also brought an increasing number of cyber vulnerabilities to the fore. Organisations must remain committed to not leaving business processes, personal data, or vital infrastructure at risk, which has proved challenging for most. As remote working establishes itself as the new normal, criminals are seeking to capitalize on the widespread cybersecurity uncertainty, and succeeding. Private organisations and cybersecurity professionals must come together to establish robust solutions for home working cybersecurity.  

This investigation explores several prevalent cyber risks (private networks, public hotspots, remote desktop protocol, authentication policies, virtual private network configuration and phishing attacks) across three key threat classifications of management, technical and human factors when remote working from the perspective of twenty industry experts. These findings offer key insights to emerging vulnerabilities, while also revealing defined strategies for organisations to help mitigate these challenges.