bluuebunny/crossref_metadata_2025 huggingface dataset:
Fast approximation of the affinity dimension for dominated affine iterated function systems
Authors: Morris Ian D.
Published: April 2022

In 1988 Falconer introduced a formula which predicts the value of the Hausdorff dimension of the attractor of an affine iterated function system. The value given by this formula–sometimes referred to as the affinity dimension–is known to agree with the Hausdorff dimension both generically and in an increasing range of explicit cases. It is however a nontrivial problem to estimate the numerical value of the affinity dimension for specific iterated function systems. In this article we substantially extend an earlier result of Pollicott and Vytnova on the computation of the affinity dimension. Pollicott and Vytnova's work applies to planar invertible affine contractions with positive linear parts under several additional conditions which among other things constrain the affinity dimension to be between 0 and 1. We extend this result by passing from planar self-affine sets to self-affine sets in arbitrary dimensions, relaxing the positivity hypothesis to a domination condition, and removing all other constraints including that on the range of values of the affinity dimension. We provide explicit examples of two- and three-dimensional affine iterated function systems for which the affinity dimension can be calculated to more than 30 decimal places.
E agora, professor? Do presencial ao remoto: desafios para viabilizar o ensino de pesquisa operacional para a geração Z
Authors: Cunha Valeriana , Caixeta Filho José Vicente
Published: April 2022

O objetivo desta pesquisa é apresentar duas abordagens para o ensino remoto de Pesquisa Operacional e avaliar seus impactos em dois aspectos: a percepção dos discentes em relação à facilidade de aprendizagem e as notas efetivamente alcançadas com cada um dos métodos de ensino utilizados. O trabalho é um estudo de caso que combina métodos quantitativos e qualitativos. Foram coletados dados primários por meio de questionário com perguntas fechadas e, ao final de cada uma das aulas os alunos também responderam questões abertas relacionadas ao assunto apresentado. Os dados foram analisados por meio de estatística descritiva e análise de conteúdo. Ao final da primeira atividade, 10 dos 24 alunos postaram as respostas solicitadas. Na segunda aula, o número subiu para 23. A média das notas dos alunos com a primeira abordagem foi de 20%, valor que subiu para 50% com a segunda. As duas abordagens apresentadas mostraram-se viáveis para serem utilizadas remotamente. O grau de participação, percepção em relação ao aprendizado e o desempenho em si foram superiores na segunda aula. Em relação ao interesse e curiosidade dos alunos pelo assunto, não houve diferenças substanciais, considerando a primeira e a segunda aula. Foi possível perceber que quanto mais a abordagem se aproxima da realidade, maior foi a facilidade dos alunos e melhor foi o desempenho deles na tomada de decisão. Reflexões acerca de metodologias de ensino utilizadas ao longo do tempo nunca cessam e tendem a contribuir para o aprimoramento do processo de ensino-aprendizagem em todos os níveis da educação.
THE INFLUENCE OF LEADERSHIP, ORGANIZATIONAL CULTURE, COMPETENCE ON THE PERFORMANCE OF CIVIL SERVANTS (PNS) OF PUBLIC HEALTH CENTER BATU AJI BATAM
Authors: Habibi Habibi , Indrayani Indrayani , Khaddafi Muammar , Yanita Yanita , Mulyadi Mulyadi
Published: April 2022

The purpose of this research was to determine the causality of the relationship between leadership, organizational culture, competence on the performance of civil servants at Batu Aji Batam Public Health Center. This study uses quantitative methods with analysis tools for the Statistical Package for the Social Sciences (SPSS) 25. The number of research respondents was 42 samples using a questionnaire. The results showed that (1) leadership had no significant effect on the performance of civil servants at Batu Aji Batam Public Health Center; (2) organizational culture has a significant effect on the performance of civil servants at Batu Aji Batam Public Health Center; (3) competence has a significant effect on the performance of civil servants in Batu Aji Batam Public Health Center; (4) leadership, organizational culture, competence simultaneously have a significant effect on the performance of civil servants at Public Health Center Batu Aji Batam
O papel do órgão regulador na resolução de disputas entre operadoras de telecomunicações: a arbitragem e a mediação à luz das experiências japonesa, inglesa e Americana
Authors: Artur Coimbra de Oliveira
Published: April 2022

A função jurisdicional do órgão regulador brasileiro é ainda pouco debatida, em parte pelo fato de a Lei Geral de Telecomunicações não ter aberto possibilidades novas e significativas para a atuação da Administração Pública nesse sentido. O artigo analisa como órgãos reguladores estrangeiros exercem a função de dirimir conflitos entre operadoras de telecomunicações e, particularmente, como são usadas a arbitragem e a mediação para isso. A partir desse estudo, analisam -se criticamente os meios que a ANATEL possui para atuar na resolução dessas disputas, formulando-se sugestões para que esse papel do órgão regulador nacional possa ser aprimorado.
Effect of Carcinoembryonic Antigen-related Cell Adhesion Molecule-binding Recombinant Polypeptide on the Killing of Neisseria meningitidis by Human Neutrophils
Authors: Youssef Abdel-Rahman
Published: April 2022

Background: Neutrophils are an essential part of innate immunity and play a crucial role in controlling infection caused by Neisseria meningitidis. The Moraxella catarrhalis ubiquitous surface protein A1 (UspA1)-based recombinant polypeptide binds to the carcinoembryonic antigen-related cellular adhesion molecule (CEACAM) 1 receptor on host cells and blocks binding of the mucosal pathogens to human epithelial cells and T cells. Aim of the study: Since the CEACAM1 receptor is expressed on neutrophils, the aim of this study was to investigate the effect of CEACAM1-binding recombinant polypeptide on the ability of neutrophils to kill Neisseria meningitidis. Methods: The effect of CEACAM1-binding recombinant polypeptide on the phagocytic killing of Neisseria meningitidis by neutrophils was assessed by incubation of neutrophils with CEACAM1-binding recombinant polypeptide (UspA1 527–665) or with CEACAM1-non-binding polypeptide control (UspA1 659–863) for one hour before infection with Neisseria meningitidis. The surviving bacteria were released and counted. Results: 30 minutes after infection of neutrophils with Neisseria meningitidis, the survival of bacteria in presence of CEACAM1-binding recombinant polypeptide was 64% compared to 52% with control peptide and 43% without peptide. However, one-hour after infection, the surviving bacteria was 32% in presence of CEACAM1-binding recombinant polypeptide compared to 18% with control peptide and 22% without peptides. Conclusion: Although CEACAM1-binding polypeptide reduced the killing of Neisseria meningitidis by neutrophils, it did not entirely stop phagocytosis and killing of bacteria.
Treatment Need as an Indicator for Planning Dental Postgraduate Programs at Umm Al-Qura University, Saudi Arabia
Authors: Bukhari Omair , Ahmed Ayman , Kabany Mohammed , Afifi Ibtesam
Published: April 2022

Background: The treatment need is one of the fundamental factors for effective planning of postgraduate dental programs that improve the competency of dental practitioners. Aims: To assess the treatment need of patients at Umm Al-Qura University, Dental Teaching Hospital utilizing statistically representative sample of patients visiting the clinics. To use data analyzed to propose the need and design for postgraduate degrees in the college. Material and methods: Information were retrieved from the electronic database of 4,967 patients’ files anonymously including age, gender, treatment needs and referred clinic specialty. The obtained data were subjected to descriptive statistics in the form of mean ± SD, frequencies, cross tabulations, and percentages using Statistical Package for the Social Sciences (SPSS) software. Results: The percentage of females' records was significantly higher (52%) than that of males. The mean age of males was higher than females (36.66 versus 35.10) while young adult age category constituted the greatest number (36.6%). The most common treatment need recorded in patients' files were periodontics (73.3%), restorative (60.4%) followed by fixed prosthodontics (54.8%). Nearly half of the patients’ (48.9%) were in need of endodontic treatment. The common significantly higher needs in females were restorative and periodontics, while among males, significantly higher treatment needs for surgery, endodontics and prosthodontics were recorded. Conclusion: Patient treatment needs at Faculty of Dentistry, Umm Al-Qura University reflect a high priority for proposing postgraduate degrees in periodontics and restorative dentistry. Also, devoting considerable time and effort in counseling and providing undergraduates with information that guide in making career decisions and match the treatment needs in Makkah, Saudi Arabia. Clinical Significance: Establishment of dental postgraduate degrees that meet the treatment needs of the community will lead to more professional diagnosis and management of patients by qualified specialists.
Prevalence of fear of Perceived Risks of acquiring HIV Infections among Health Care Providers towards People Living with HIV and AIDS in River Nile State
Authors: Bushara Mohamed , Adetunji Hamed
Published: April 2022

Background: Medical care providers must encounter with People Living with HIV Aids and be prone to acquiring HIV infection as a result of the nature of their work. As such, their knowledge and awareness of their likelihood of contracting the disease may interfere with their care for patient suffering from HIV/AIDS. Aim of the study: The study aimed to find out the frequency of fear of perceived risk of infection among health care providers from those that are infected with HIV or their relatives at Nile River State of Sudan. Methods: The study design is cross-sectional, descriptive, and correlational. A questionnaire was administered to medical care providers in in two hospitals in Nile State, Sudan. Questions that covers demographic characteristics, familiarity with HIV, fear, and perceived risk of Medical Care Providers were asked. Results: Three hundred and ninety MCPs took part in the study, 136 were doctors, 219 were nurses, and 35 were midwives. Knowledge of the respondents is poor (1.8%), satisfactory (68.2%) and good (30%). The overall perceived risk in the majority of Medical Care Providers 66.7% was unclear, 27.9% had low perceived risk, while only 5.4% had high-perceived risk. Respondents’ knowledge and level of perceived risk are significant statistically. The better the respondents’ knowledge, the lower the perceived risk manifested. Appropriate recommendations were made. Conclusion: Medical Care Providers have overall unclear perceived risk, with some amount of high perceived risk related to providing care or casual contact with PLWHA.
Influence of circadian rhythm habit on academic performance and body mass index among the medical students in Qassim University, Saudi Arabia
Authors: Alhomaidan Homaidan , Shariq Ali , AlAnezi Aiyed , AlMutairi Majed , AlOraini Ahmed , AlMuzaini Jawad , Alharbi Turki , AlNasser Majed , Algharras Ahmad , Alfadhel Emad , Alamri, Yazeed , AlMuhanna Mousa , Alkhamiss Abdullah , Abdulmonem Waleed
Published: April 2022

Objective: Based on the significance of sleep quality on academic performance among medical students, this research was conducted to determine the influence of sleep circadian rhythm categories and their impact on the academic performance of medical students and relationship to body mass index (BMI). Methods: A cross-sectional self- administered questionnaire was conducted from September to October 2018 at the College of Medicine in Qassim University. The survey was designed to assess their circadian rhythm habit, academic performance and Body mass index (BMI). The circadian rhythm habit was evaluated using the morningness-eveningness questionnaire (MEQ). Results: The analysis of the BMI with MEQ scores revealed a significant relationship between circadian rhythm habit and BMI (p-value 0.016). The majority of normal weight students fall in intermediate category (71%). Among overweight category 20.5% of the participants fall in moderate evening while 10.3% of the students fall in moderate morning. All the definite morning participant were underweight. There were 126 (62.1%) male students, and 77 (37.9%) female students. For academic performance there were 80 students (39.4%) who had “high” performance, 64 students (31.5%) had “good” performance, 32 students (15.8%) had “normal” performance and 2 students (1%) had “low” performance. Conclusion: This study revealed several sleep dimensions such as sleep-wake schedules, and individual circadian rhythms characteristics may be associated to the deranged BMI and academic results achieved by university students.
A Review Study on Experimental Investigation of Annealing Heat Treatment Process on SS 316 and Mild Steel Joint by SMAW Process
Authors: Patel Shreyal P.
Published: April 2022

This paper presents a review of the recent work done on annealing of dissimilar metal welded by SMAW, with the focus on improvement of microstructure and mechanical properties of specimen. Annealing is used in industry to improve the desired mechanical properties of metal such as increasing machinability, strength of material, hardness and removing stress from metal. The papers for investigation in this work were considered from 2010 to date 2021. A total of 20 research papers were chosen for our consideration after an in-depth examination of several such papers. In this paper covers the all the technical aspects which affect the quality of SMAW welded and annealed joint. Effect on all the types of joint configuration is studied. All the technical aspects of heat treated all material is covered. Effect on material quality of basic parameters like annealing temperature, heat treatment process, welding Current, welding Voltage has been studied. Finally, the area on which further more research can be carried out are identified.
WORD OF MOUTH RELATIONSHIP ANALYSIS ON PURCHASE INTENTION AND ITS IMPACT ON PURCHASE DECISIONS
Authors: Apdillah Dicky , Hidayat Riyan Fiqri , Al Azmi Chairanda , Zuwandana Ahmad
Published: April 2022

This study aims to analyze the relationship of Word of Mouth in Purchase Intention toward Purchase Decision. This study is a quantitative study using SEM PLS. The sample in this study was 100 respondents to consumers of Alfamart Kramat Pulo 2 with a non-probability sampling technique, namely a sampling technique that provides equal opportunities for each element (member) of the population to be selected as a member of the sample. The data the analyzed using validity test and hypothesis test to obtain the result. The finding reveals that by empirical analysis, word of mouth has a statistically significant positive impact on purchasing interest, such that as word of mouth improves, so does purchasing intention. Meanwhile, in empirical evidence, purchasing intention has a positive and significant impact on purchasing decisions, such that if the purchasing interest in a product becomes increasingly attached to the minds of customers, the likelihood of making a purchase increases. Furthermore, according to empirical research, word of mouth has a positive and statistically significant impact on purchasing decisions.
EVALUASI KESESUAIAN PERESEPAN OBAT PADA PASIEN RAWAT JALAN POLI PENYAKIT DALAM DENGAN FORMULARIUM NASIONAL DI RSUD PRAMBANAN
Authors: Khasanah Uswatun , Mayasari Gita , Irianto Iramie Duma Kencana
Published: April 2022

Pelayanan obat untuk peserta Jaminan Kesehatan Nasional (JKN) yang diselenggarakan oleh BPJS Kesehatan mengacu pada daftar obat Formularium Nasional. Formularium Nasional adalah daftar obat terpilih yang disusun oleh Komite Nasional yang penyusunannya didasarkan bukti ilmiah terkini, berkhasiat, aman, dan bermutu, yang digunakan sebagai acuan penulisan resep, sehingga dapat meningkatkan mutu pelayanan kesehatan, melalui peningkatan efektifitas dan efisiensi pengobatan sehingga tercapai penggunaan obat rasional. Penelitian ini bertujuan untuk mengetahui persentase kesesuaian peresepan obat pada pasien rawat jalan peserta JKN poli penyakit dalam dengan Formularium Nasional di RSUD Prambanan Desember 2019. Penelitian ini berjenis deskriptif dengan metode pengumpulan data secara retrospektif berdasarkan dokumen resep pada bulan Desember 2019. Pengambilan sampel menggunakan systematic random sampling. Jumlah resep pasien peserta JKN di poli penyakit dalam sebanyak 1403 lembar resep dengan kriteria inklusi sebanyak 1279 lembar resep. Sampel yang digunakan sebanyak 214 lembar resep dengan 1038 obat yang ditulis oleh dokter spesialis penyakit dalam yang kemudian data tersebut diolah dan dihitung persentase kesesuaian jenis obatnya dengan Formularium Nasional. Persentase kesesuaian peresepan obat pada pasien rawat jalan peserta JKN poli penyakit dalam dengan Formularium Nasional di RSUD Prambanan sebesar  98,84%. Persentase obat generik yang sesuai Formularium Nasional sebesar 99,58%. Persentase obat bermerk (brand) yang sesuai Formularium Nasional sebesar 97,21%. Obat yang paling banyak diresepkan dan sesuai dengan Formularium Nasional antara lain amlodipine 5 mg, asam asetilsalisilat 80 mg, kandesartan 8 mg, natrium bikarbonat serta metformin 500 mg. Obat yang paling banyak diresepkan dan tidak terdapat dalam Formularium Nasional adalah Intifen® 1 mg.
Kiprah Dakwah Virtual di Masa Pandemi Covid 19 Pada Siaran Mimbar Agama Islam di Stasiun TVRI Sumatera Utara
Authors: Wahyu Ziaulhaq
Published: April 2022

This study describes the vitual da'wah during the Covid 19 pandemic on the broadcast of the Islamic religious pulpit on the TVRI station of North Sumatra. The purpose of this study is to evaluate the broadcast of the Islamic religious pulpit on TVRI North Sumatra in a structured manner. This research is a qualitative research with a descriptive approach and provides education to the reader. The data collection techniques used include observation, interviews. The results of this study are: First, Islamic broadcasting in the Islamic pulpit program at TVRI North Sumatra uses the discussion and question and answer method. Second, TVRI North Sumatra's Islamic pulpit program is effective in compiling an attractive broadcast format, presenting interactive presenters, presenting resource persons who have competence in the religious field, producing quality broadcasts, preaching materials capable of educating the audience, and providing motivational and educational shows.
Faktor-Faktor Yang Mempengaruhi Pembelian Daging Ayam Di Pasar Jatiasih Kota Bekasi Selama Pandemi Covid-19
Authors: Dorfi Difo Alfian , Azizah Siti
Published: April 2022

This research study aims to find out the factors of buying chicken meat in traditional markets during the Covid-19 pandemic. This research was conducted in Jatiasih Market, Jatiasih Subdistrict, Bekasi City, Province of West Java on November 7 to December 12, 2021. The sampling method used is purposive sampling, using 104 respondents. The results showed the characteristics of consumers who buy chicken meat in Jatiasih Market on average women, over 36 years of age, high school education/equivalent, housewife work, income below IDR.1,000,000.00, consumption rate of 1-1.5 Kg in a week and purchase rate as much as 1-3 times a week. The results of the multiple linear regression equations obtained a coefficient of determination of 0.727 which indicates that the health protocols (X1), marketing mix (X2) needs (X3) and purchase intention (X4) affect purchasing decisions (Y) by 62.8%. The F test concluded that health protocols, marketing mix, needs and purchase intention had a significant influence on purchasing decisions. The T test concluded that health protocols have a significant influence on purchasing decisions. Therefore, the advice given according to the results is with chicken traders in Jatiasih Market, among others, traders must always adhere to health protocols in serving consumers, maintaining the cleanliness of outlets and providing services by considering selling using the method of delivery or online, in order to reduce crowds in the market where the market is one of the places that is indeed a lot of spread of the Covid-19 virus.
Using TED Talks In English Language Teaching (ELT): Supplemental Resources for English Language Teaching (ELT)
Authors: Tira Nur Fitria
Published: April 2022

The objective of this research is to discuss using TED Talks in English Language Teaching (ELT). This research uses the descriptive qualitative method. Based on the findings, it shows that TED Talks can help students learn a variety of skills on English skills such as speaking, listening, and writing skills. In speaking, TED Talks allow the students in listening to a good example of talks/lecturers and to analyze how they are structured and presented. The students can be given the opportunity outside of class to watch selected TED Talks, so these talks are can be analyzed in class and the students are familiar with the language and content. In listening, TED talks are delivered by native English speakers from all over the world which allows the students to see some TED chats about a subject that concerns them, by merely listening to a native English speaker. They can help develop their understanding, vocabulary, and pronunciation skills. In writing, available TED Talks’ transcripts allow the students to read along with the spoken word. This can develop their skills in grammar and vocabulary to hear what is being said quickly. It is important to point out that there are lots of websites or digital channels where the students and teacher can find TED Talks English video which provides speeches or presentations from world inspirational figures from various fields with various interesting topics. These video-based language learning make the students understand the influential TED Talks concepts and explore them more. Teaching English with TED Talks supports every English language program with easy-to-use classroom tools. TED talks are also great resources for teachers like approach to teaching ESL. English Language Teaching by using TED Talks is one of the authentic supplemental resources for English teachers to manage in English language learning programs.
Paleontology: Discovering the Ancient History of the American West
Authors: Johnson Kirk , Stucky Richard K.
Published: April 2022

This is Chapter 6 of the comprehensive history of the Denver Museum of Nature & Science, published in the Denver Museum of Nature & Science Annals vol. 4.
WSN based Forest Fire Detection System
Authors: Saha Dipasri , Shaw Binit Kumar , Bose Sayantan , Paik Soumendranath
Published: April 2022

Forest is a major part of the global, ecological, environmental, and recreational system. It has a huge impact on amount of greenhouse gases, atmospheric carbon absorption, and reduction of soil erosion. It directly modulates the temperature and regulate amount and nature of rainwater. To a large extent, forest fire is one of the most dangerous natural hazards that occur in practically in all countries worldwide affecting physical, biological, and environmental consequences. An advanced technology, Wireless Sensor Network (WSN), is nowadays getting more importance and has started application in forest fire detection. The Wireless nodes integrate on the same PCB, the sensors, the data processing, the wireless transceiver, and they all run by the same source- batteries. Unlike cell phones, WSN do not require recharging periodically. The sensors used here, are device for sensing their environment and computing data. The sensors sense physical parameters such as the temperature, pressure, and humidity, as well as chemical parameters such as Carbon Monoxide (CO), Carbon Dioxide (CO2) and Nitrogen Dioxide (NO2). The sensors operate in a self-healing and self-organising wireless networking environment.
Online Mode of Engineering Education during Pandemic: Merits and Demerits
Authors: Goswami Ghritartha , Kalita Niky , Ramesh P. G.
Published: April 2022

The epidemic COVID-19 has forcibly transformed the manner of teaching and learning in India's higher education from face-to-face to online, resulting in new experiences and practices for many professors and students. In this context, this research examines the benefits, problems, and tactics of online and offline education in India's higher education during and after COVID-19. The study found that online education is beneficial in terms of time management skills, as well as more freedom for professors and students. However, obtaining reliable internet access at work is one of the most difficult tasks. According to the findings, practitioners who want to participate in online education must be technologically proficient and computer literate. In the context of India, only online teaching and learning cannot be effective, hence blended learning is a preferable alternative in terms of technical education. According to the conclusions of the study, online education can be a viable alternative to traditional education. Thus, in environments such as India, a hybrid approach would make the educational process more effective and successful.
Mitigations for Sustainability of the Megacities
Authors: Biswajit Ghosh
Published: April 2022

The megacities are facing problems like increase in population, enhancement of environmental pollution, collapsing of traffic systems, and dysfunctional of waste management. The vertical extensions in the built-in-systems welcomed urban heat island (UHI) effect and enhance 5-10% more energy consumption. Thus, mitigation of UHI can be done by; i. reduction of albedo effect by introducing rooftop integrated photovoltaic (RiPV) systems, and ii. introduction of evapo-transpiration systems like water bodies, greeneries, green roof & green wall. Long term studies showed that introduction of RiPV systems in built-in-system not only reduce the albedo effect but also compensate the additional energy demand.
Experimental Investigation on the Impact of Sulphate and Chloride on High Volume Fly Ash Concrete
Authors: Paksok Dinken , Patil Ravi
Published: April 2022

High weathering action in the corrosive and chemically active environment can significantly affect the strength characteristics of the concrete and also excessive utilization of sand as fine aggregates in building construction enhances degradation of the environment and urges the need for an alternative source in the scene of sustainable construction. Fly ash has generally used an alternative of cement, such as an admixture in concrete, and production of cement. As per the literature it has been found that concrete containing fly ash as partial to complete replacement of fine aggregate has been found to increase strength on a long-term basis. An experimental investigation was carried out to evaluate the strength and durability characteristics of concrete building blocks by replacing fine aggregates with fly ash at 10% to 100% by weight of fine aggregate and subjecting it to chloride attack and sulfate attack. Various tests were conducted for the properties of fresh concrete. Compressive strength and flexural strength were determined at 28 days. Test results indicate significant improvement in strength properties of plain concrete by the inclusion of fly ash as partial replacement of fine aggregate (sand), and increase in resistance to sulfate and Chloride attacks and can be effectively used in structural concrete.
Leachate Characteristics and its Treatment Techniques - A Review
Authors: Powrel Deepak Kumar , Paksok Dinken
Published: April 2022

The issue of waste management has existed since the dawn of time. The remark discovered in Old Testimony is most likely the first written guideline on waste management. Municipal waste landfilling is a key problem in the waste management system. Before being discharged into the environment, the generated leachate must be properly treated. There are mainly two types of leachate treatment technologies: (i) Biological methods, (ii) physical and chemical methods. Here's a brief overview of the basic procedures for treating landfill leachates that are currently in use.
Efficient Management of Technical Educational Institution in India
Authors: Nag Prantosh Kumar , Dutta Shantanu
Published: April 2022

The present technical education system of India currently focuses on role learning which helps just memorization skills of students rather than focusing on conceptual understanding and applications. the government department on education should look after to promote innovation, Research & Development in addition to provide affordable education to all; making Indian Technology globally acceptable and look forward efficient, flexible and empowered manpower, sensitive to the Industry’s expectation. In this paper a case study of the Elitte Institute of Engineering & Management (EIEM) is proposed.
The Integration of Computer Vision Technology and Chemistry Experiment: Identification of Acid and Base
Authors: Xu Xu
Published: April 2022

Promoting the deep integration of artificial intelligence and education actively can facilitate educational change and innovation. Computer vision technology is one of the important technical means of artificial intelligence. Through integrating computer vision technology and chemistry experiment in middle school and demonstrating the necessity, we propose a design of computer vision experiment. For this experiment, we use the open source hardware mPython 2.0, the small ark AI vision module and the graphical programming software mPython 0.5.4 to integrate with the “acid and base identification” experiment. And the AI experiment device can identify the color of the acid and base indicator to obtain the acid and base value which can compensate for the needs of students with color recognition impairment. In this experiment, visual programming software is used to learn for high school students because it is simple and practical.
Reform and Innovation of College English Teaching under Internet + Environment
Authors: Liu Anqi
Published: April 2022

In the context of the Internet, the "Internet + Industry" model has been widely used in all walks of life, and "Internet + education" is also developing vigorously. How to give full play to the positive role of the Internet and apply the rich teaching resources and information technology in college English teaching is a problem that all colleges and universities are actively exploring. In the context of "Internet +", college English teaching should actively innovate, make full use of Internet technology and information resources, and help students to improve their grasp of English theoretical knowledge and oral English expression ability.
The Influence of Cultural Differences on British and American Literary Criticism
Authors: Zhang Yanrong
Published: April 2022

Literature represents a country, and literary works can show the personality and products of a country. It is also the cornerstone of a country’s cultural development. Different countries will inevitably have different cultural traditions. These cultures have completely different characteristics. This is also the main reason why the world culture is developing in a pluralistic direction. This article discusses the impact of cultural differences on British and American literary criticism, with a view to finding a balance between different cultures to help develop new ways to explore British and American literature.
Zeytin Karasuyunun Ön Arıtımında Asitle Parçalama ve Kireçle Çöktürme Uygulamalarının Karşılaştırılması
Authors: KAYKIOĞLU Gül , BALCI Cemre Nur
Published: April 2022

Zeytinyağı üretimi sonrası oluşan ve arıtılmadan alıcı ortamlara deşarj edilmesinin ciddi çevresel tehlikelere sebep olabileceği bilinen atıksuyun, ülkemizde uygulanan yaygın bir arıtma metodu bulunmamaktadır. Zeytin karasuyu olarak adlandıran bu atıksu yüksek miktarda organik madde, yağ-gres ve fenolik maddeler içermektedir. Yoğun kirlilik yüküne sahip olan atıksuyun alıcı ortamlara ya da kanala deşarj edilebilecek kadar arıtılması tek kademeli arıtma yöntemleriyle mümkün olamamaktadır. Bu çalışmada zeytin karasuyunun arıtımında iki farklı ön arıtma (asitle parçalama ve kireçle çöktürme) uygulanmış ve elde edilen giderme verimleri değerlendirilmiştir. Ön arıtma çalışmaları sonucunda kireç ile çöktürme (pH 12,5) uygulamasının, asit kullanılarak (pH’ın 2’nin altına düşürülmesi) yapılan parçalama işleminden daha başarılı olduğu tespit edilmiştir. Kireç ile ön çöktürme yöntemi uygulandığında KOİ, yağ-gres, TOK ve fenolik maddelerin giderim verimleri sırasıyla %52, %99,7, %42 ve %13 olarak ve asit ile parçalanma yöntemi uygulandığında ise %43, %89, %30, %0,3 olarak tespit edilmiştir. Sonuç olarak zeytin karasuyuna kireçle çöktürme ön arıtma işleminin ardından uygulanacak olan nihai arıtma yöntemlerinin daha başarılı giderme verimleri elde edilmesine sebep olabileceği belirlenmiştir.
Global Gerçek Evapotranspirasyon (ETa) Haritalarından Arazi Kullanım Sınıflarına Ait ETa Kayıplarının Tahmini
Authors: PEKER Fırat , BAYHAN Hürrem , AKKOYUNLU Atilla
Published: April 2022

Günümüzde uydu görüntüleri kullanılarak gerçek evapotranspirasyon kayıplarının hesaplandığı çeşitli modeller geliştirilmiştir. Amerika Birleşik Devletleri Jeoloji Araştırmaları Kurumu tarafından Operasyonel Basitleştirilmiş Yüzey Enerji Dengesi Modeli kullanılarak üretilen global gerçek evapotranspirasyon haritaları bunlara örnektir. Uzamsal çözünürlüğü 1x1 km olan bu haritaların pikselleri içerisinde birden fazla arazi kullanım sınıfının yer aldığı durumlarda, bu haritalar kullanılarak arazi kullanım sınıflarına ait gerçek evapotranspirasyon kayıplarının hassas bir şekilde belirlenmesi güçleşmektedir. Bu çalışmada; piksel boyutu kısıtlamasına bağlı kalmadan, global gerçek evapotranspirasyon haritalarından arazi kullanım sınıflarına ait gerçek evapotranspirasyon kayıplarının tahmini amacıyla, çoklu regresyon analizine dayalı bir model geliştirilmiştir. İstanbul İli Terkos su havzası kapsamında geliştirilmiş bu modelde; alt havzalara ait aylık gerçek evapotranspirasyon değerleri ile alt havzalardaki arazi kullanım sınıflarına ait aylık referans evapotranspirasyon değerleri arasında bir bağıntı kurulmuştur. Alt havzaların aylık gerçek evapotranspirasyon değerleri global gerçek evapotranspiasyon haritalarından elde edilmiştir. Aylık referans evapotranspirasyon değerleri Penman-Monteith yöntemine göre hesaplanmıştır. Arazi kullanım sınıfları Landsat uydu görüntüleri kullanılarak belirlenmiştir. Model sonucunda ölçüm ve tahmin değerleri arasında kök ortalama kare hata 11.4 olarak, R2katsayısı ise 0.963 olarak bulunmuş ve modelden elde edilen çoklu regresyon bağıntısı kullanılarak Terkos havzasındaki arazi kullanım sınıflarına ait aylık gerçek evapotranspirasyon kayıpları belirlenmiştir.
Exploring Education Techno-Monitoring Futures: A Participatory Speculative Critical Design Case
Authors: Durall Gazulla Eva
Published: April 2022

In learning and education, techno-monitoring practices are a growing trend. While these practices are still emerging, there has been no public debate on education stakeholders’ preferred futures regarding techno-monitoring in learning and education. This study presents a participatory design case using speculative critical design to support higher education students’ reflection about possible futures related to techno-monitoring practices in learning in higher education. The participants’ experiences using a prototype that monitors mental states are presented in the form of stories, which reflect the students’ complex relations toward techno-monitoring. Participatory speculative critical design is highlighted as a successful strategy to create compelling futures scenarios that trigger critical reflection and debate among the education community.
Towards Safeguarding Users’ legitimate rights in Learning Management Systems (LMS): A case study of the Blackboard LMS at Sorbonne University, Abu Dhabi (SUAD).
Authors: Kabata Victor
Published: April 2022

This paper sought to establish the extent to which users’ legitimate rights are safeguarded in Learning management systems (LMS), specifically, on the Blackboard system, used for teaching at Sorbonne University, Abu Dhabi (SUAD).
Firstly, users’ legitimate rights that must be protected were identified. Subsequently, the security and privacy guarantees afforded by Blackboard were assessed.  Lastly, policy gaps and technological deficiencies undermining protection of users’ legitimate rights were identified.  
The study adopted a qualitative research approach and a case study research design. Data was collected through content analysis, document review and interviews.
The research revealed that to a large extent Blackboard, LMS safeguarded most of the users’ legitimate rights. However, the system is silent on some legitimate rights such as storage limitation and data sharing arrangements.  Further, it emerged that Blackboard’s privacy practices are to a large extent informed by educational institutions using its products. The study concludes that safeguarding user’s legitimate rights is a collective responsibility between the learning management services providers and the educational institutions. As such, there is need for educational institutions using Blackboard and other learning management systems to craft robust data protection regimes.
Keywords: Learning Management Systems, Privacy, Users' legitimate rights
Comparison of the Effect of Two Dynamic Loading Rates on Fracture Characteristics of Human Ribs in Bending
Authors: Harden Angela , Kang Yun-Seok , Agnew Amanda
Published: April 2022

Recent years have seen an increase in contributions to the criminal justice system through expert testimony regardingskeletal trauma analysis and interpretation. In order to scientifically validate skeletal trauma analysis methods and ensure the dependability of interpretations to support expert testimonies, the reliability of generally accepted concepts must be determined. This research focused on the traditional assumption that extrinsic factors influence fracture characteristics in human bone. The objective of this study was to investigate the influence of loading rate on fracture characteristics by evaluating the effect of two dynamic loading rates in blunt-force trauma to human ribs. The sample consisted of mid-level human ribs in which fracture characteristics were evaluated in bilateral rib pairs experimentally tested in precisely the same loading scenario (anterior to posterior bending) at different dynamic loading rates. These comparisons demonstrated that the difference between 1 m/s and 2 m/s had no independent influence on fracture characteristics, despite the large difference in impact energy associated with these rates (27.2 J and 108.8 J, respectively). The general assumption that greater impact speed and energy leads to increased injury severity and more complex fracture characteristics was not supported in ribs loaded at 1 m/s versus 2 m/s.
Generation of Elliptic Curve Points in Tandem
Authors: Faz-Hernández Armando , López Julio
Published: April 2022

A hash to curve function H, mapping bit strings to points on an elliptic curve, is often required in cryptographic schemes based on elliptic curves. Its construction is based on a deterministic encoding and a cryptographic hash function, which complementarily dominate its execution time. To improve the performance of H, we propose a parallel strategy where two units execute in tandem the internal operations of H. We instantiate this approach with a parallel software implementation of a hash to curve function that outputs points on a twisted Edwards curve. A performance benchmark on Haswell and Skylake micro-architectures shows that our parallel implementation is 1.4 times faster than its sequential implementation.
Xphide: Um Sistema Especialista para a Detecção de Phishing
Authors: Barros Mateus L. S. D. de , Silva Carlo M. R. da , Miranda Péricles B. C. de
Published: April 2022

Phishing é um tipo de crime cibernético que visa o roubo de dados pessoais do usuário por meios de disfarces e enganação. Este artigo propõe o Xphide, um sistema especialista para a detecção de páginas maliciosas. A base da construção do sistema foi feita através de uma análise aprofundada a respeito de atributos relevantes para descrição de páginas web. Esta análise serviu de insumo para a elaboração das regras do processo decisório do Xphide. O sistema proposto foi avaliado em três diferentes bases de dados. Os resultados mostraram que o mesmo superou algoritmos de classificação tradicionais em termos de precisão e revocação, se mostrando uma alternativa promissora para a classificação de página web.
Lokke, a hybrid security hypervisor
Authors: Silva Otávio A. A. , Geus Paulo Lício de
Published: April 2022

This work did ample research on techniques used by advanced threats that aim to evade detection systems, elevate privileges and manipulate objects in a modern OS kernel, using the Windows 10 kernel as a test bench. Given state-of-the-art attacks in kernelspace, this work's main goal is to design a secure mechanism to protect the OS kernel against a class of attacks, not relying upon any specific vector. This mechanism is based on hybrid virtualization and combines the advantages of Type 1 and 2 hypervisors, where the hypervisor runs at the same level as the OS kernel does, but within a privileged execution framework. The design of this security framework allows for the integration with other security subsystems, by providing security policies enforced by the hypervisor and independently of the kernel.
Detecção de Fraudes na Emissão de Certificados Digitais dentro da Infraestrutura de Chaves Públicas Brasileira
Authors: Gomes Fernanda O. , Agostinho Bruno M. , Baldisera Julia , Silveira Raphael S. da , Martina Jean E.
Published: April 2022

Muitas das interações com os sistemas de governo eletrônico (e-gov) no Brasil são realizadas por meio do uso de certificados digitais emitidos por uma infraestrutura de chaves públicas controlada pelo governo (ICP-Brasil). Os certificados digitais são uma ferramenta perfeita para que pessoas se passarem por outras pessoas virtualmente, roubando assim sua identidade. A fraude na emissão de um certificado digital pode abrir portas para autenticação em sistemas e acesso a documentos sigilosos. O processo atual é manual, custoso, está sujeito a falhas e corrupção humana. Visto isso, este trabalho propõe a automatização do processo de detecção de fraudes através da proposta de uma abordagem híbrida de aprendizado de máquina utilizando uma técnica de clusterização baseada no DBSCAN e classificação usando os dados utilizados no processo de emissão de certificados digitais da ICP-Brasil. Esse sistema de detecção de fraude torna o sistema ICP-Brasil mais seguro, mais rápido e mais barato.
Detecção de Ataques a Redes IoT Usando Técnicas de Aprendizado de Máquina e Aprendizado Profundo
Authors: Bochie Kaylani , Gonzalez Ernesto R. , Giserman Luiz F. , Campista Miguel Elias M. , Costa Luís Henrique M. K.
Published: April 2022

As vulnerabilidades de dispositivos IoT os tornam um alvo simples para invasão e controle por parte de atacantes. Ao mesmo tempo, a dinamicidade das redes IoT dificulta o desenvolvimento de sistemas de segurança baseados em regras. Este cenário é um convite ao emprego de técnicas de aprendizado de máquina. No entanto, a escassez de conjuntos de dados públicos torna-se um entrave para a avaliação da detecção de ataques a redes IoT. Ainda, observa-se que os desempenhos de modelos de aprendizado não são comparados quantitativamente, o que pode afetar a validade das conclusões. Este trabalho, então, avalia os desempenhos de múltiplos modelos de aprendizado de máquina tradicionais e profundos, em traces públicos, para a detecção de ataques. Modelos como redes neurais convolucionais, recorrentes e autoassociativas são usados. A comparação mostra que traces organizados por fluxo ou por pacote têm influência direta na escolha de técnicas para detecção. Além disso, redes neurais autoassociativas profundas se mostram efetivas para detectar ataques online.
Detecção estática e dinâmica de malwares usando redes neurais sem peso
Authors: Ramos Luiz C. S. , Lusquino Filho Leopoldo A. D. , França Felipe M. G. , Lima Priscila M. V.
Published: April 2022

A preocupação com a segurança e a integridade dos dados em sistemas de computação, incluindo áreas importantes como Internet das Coisas e Indústria 4.0, estão crescendo dramaticamente. Dessa forma, a existência de um malware pode ameaçar o bom funcionamento de sistemas inteiros, trazendo consequências irreversíveis. Este trabalho visa utilizar redes neurais sem peso para detecção estática e dinâmica de malwares. Na utilização de técnicas estáticas baseadas na imagem 2D do arquivo binário e de técnicas dinâmicas baseadas em API Calls, a rede WiSARD mostrou resultados próximos de técnicas do estado da arte utilizando redes neurais com peso, porém com tempos de treinamento e classificação uma ordem de grandeza menor.
Identificando Indicadores de Browser Fingerprinting em Páginas Web
Authors: Matos Geandro Farias de , Feitosa Eduardo L.
Published: April 2022

Técnicas de Browser Fingerprinting são aquelas empregadas para identificar (ou reidentificar) um usuário ou um dispositivo e são consideradas uma ameaça potencial à privacidade dos usuários. Neste contexto, este artigo propõe uma forma para detectar chamadas fingerprinting aos objetos fornecedores de informação do JavaScript em páginas Web e mensurar o nível de severidade à ameaça ao usuário.
Gerenciamento de Firewalls em Redes Híbridas
Authors: Fiorenza Maurício , Kreutz Diego , Mansilha Rodrigo
Published: April 2022

O gerenciamento de firewalls é um processo desafiador em redes híbridas, pois envolve aplicar políticas de segurança em soluções tradicionais (e.g., Cisco NGFW, IPTables) e emergentes (e.g., OpenFlow, P4, e POF). Neste trabalho é proposta e discutida uma arquitetura, organizada em uma pilha de camadas, para gerência integrada de firewalls em redes híbridas. Como prova de conceito, foi implementado um protótipo que gera a configuração de regras para diferentes soluções de firewall. O protótipo foi avaliado experimentalmente através de testes de continuidade de tráfego (bloqueio e liberação) e limite de tráfego (traffic shaping).
Aristoteles – Einführung in seine Philosophie
Authors: Buchheim Thomas
Published: April 2022

Kein Philosoph hat unsere heutige Wissenschaft so sehr geprägt wie Aristoteles (384–322 v. Chr.). Er hat nicht nur das Wissen seiner Zeit in ganzer Ausdehnung gedanklich umspannt und systematisiert, sondern es auf allen Feldern weit über sich hinausgetrieben (von der Physik bis zur Psychologie). Durch empirische genaue Würdigung der Phänomene und methodisch strenge Suche nach den jeweiligen Prinzipien hat er auf vorbildliche Weise versucht „zu sagen, was ist“. Selbst unsere Logik, die Art, wie wir Definitionen aufstellen und Beweise führen, sowie die Kategorien, mit denen wir noch heute die Wirklichkeit beschreiben, etwa Substanz, Qualität, Quantität, Relation – Aristoteles hat sie begründet und als erster Gebrauch davon gemacht.

Doch auch die praktische Philosophie und das Denken des Menschen über sich selbst hat Aristoteles mit seinen Theorien des Handelns und der Tugenden, des öffentlichen Redens und der Dichtung bis heute nachhaltig bestimmt: Worin liegt das eigentlich Gut der menschlichen Existenz? Wie kann ein Mensch im Handeln die „rechte Mitte“ finden? Was macht ihn zum „zoon politicon“?