bluuebunny/crossref_metadata_2025_split huggingface dataset:
Metasurface Superstrate Beam Steering Antenna with AMC for 5G/WiMAX/WLAN Applications
Authors: Verma Akhilesh , Arya Ravi Kumar , Raghava Srinivasa Nallanthighal 
Published: December 2021

Abstract
A beam-steering antenna based on non-uniform metasurface superstrate and AMC, operating at 3.5 GHz, is presented. The antenna can steer the beam along θ = -18° and 18° with the superstrate and along θ = 0° in the absence of the superstrate with almost zero scan loss. Antenna structure consists of a top layer of non-uniform metasurface superstrate made of a 20 × 20 grid of electrically-small square-shaped metallic pixels while the bottom part consists of AMC with a grid of 5 × 5 pixels. The radiating element, CPW-fed monopole antenna, is placed between AMC and superstrate. The fabricated prototype shows desired beam steering in directions of θ = -18°, 0°, and 18° while maintaining uniform realized gain of 5.5 dB and matches well with simulations.
Bioinformatic Modelling of SARS-CoV-2 Pandemic with a Focus on Country-Specific Dynamics
Authors: Liu Jakub , Suchocki Tomasz , Szyda Joanna 
Published: December 2021

Abstract
Background: One of the seminal events since 2019 has been the outbreak of the SARS-CoV-2 pandemic. Countries have adopted various policies to deal with it, but they also differ in their socio-geographical characteristics and the public health care facilities. Our study aimed to investigate differences between epidemiological parameters across countries.Method: The analysed data represents SARS-CoV-2 repository provided by the Johns Hopkins University. Separately for each country, we estimated recovery and mortality rates using the SIRD model applied to the first 30, 60, 150, and 300 days of the pandemic. Moreover, a mixture of normal distributions was fitted to the number of confirmed cases and deaths during the first 300 days. The estimates of peaks’ means and variances were used to identify countries with outlying parameters.Results: For 300 days Belgium, Cyprus, France, the Netherlands, Serbia, and the UK were classified as outliers by all three outlier detection methods. Yemen was classified as an outlier for each of the four considered timeframes, due to high mortality rates. During the first 300 days of the pandemic, the majority of countries underwent three peaks in the number of confirmed cases, except Australia and Kazakhstan with two peaks.Conclusions: Considering recovery and mortality rates we observed heterogeneity between countries. Liechtenstein was the “positive” outlier with low mortality rates and high recovery rates, at the opposite, Yemen represented a “negative” outlier with high mortality for all four considered periods and low recovery for 30 and 60 days.
Strength Deterioration Mechanism of Bentonite Modified Loess After Wetting- Drying Cycles
Authors: Niu Ze-Lin , Xu Jian , Li Yan-Feng , Wang Ze-Feng , Wang Bao 
Published: December 2021

Abstract
The employment of bentonite modified loess (BML) is a common method of constructing the anti-seepage lining of landfills in the loess region of China, and its long-term secure performance is threatened by wetting-drying (W-D) cycles. Taking the remolded loess (RL) and BML with 15% in mass of bentonite as research objects, the W-D cycles test, scanning electron microscope (SEM) test and direct shear test were carried out to analyze the effects of W-D cycles on the microstructure and shear strength of samples. The regression equations between strength and micro-pore structure parameters were established by the multivariate linear stepwise regression method. The damage mechanism of BML after W-D cycles was studied by establishing damage degree models based on pore area ratio and cohesion. Results indicate that the water absorption and expansion of bentonite effectively block the intergranular pores, resulting in more medium and small pores and more pronounced surface contact of particles. After W-D cycles, the particle arrangement of samples before and after bentonite modification tends to be loose. Both the pore area ratio and fractal dimension increase and tend to stabilize after five cycles. The BML exhibits lower pore area ratio and greater fractal dimension while its cohesion and internal friction angle show more significant decrease after W-D cycles than those of RL. The damage variables based on pore area ratio and cohesion well describe the W-D induced damage of loess before and after modification from macro- and micro-scale perspectives. The damage degree of samples increases with W-D cycles, but the increment decreases.
GRU-BWFA Classifier for Detecting DDoS Attack within SNMP-MIB Dataset
Authors: Rajasekar P , Magudeeswaran V. 
Published: December 2021

Abstract
With the advancing trends in the field of information technology, the data users were subjected to face differernt of attacks. Hence effective and prompt detection of malicious attacks must be optimized in terms of confidentiality, privacy, availability and integrity. Accordingly this research paper provides an effective mechanism for detecting and classifying DDoS attacks such as TCP-SYN, UDP flood, ICMP echo, HTTP flood, Slowloris Slow Post and Brute Force attack, by utilizing machine learning methods within SNMP-MIB dataset. MIB (Management Information Base) is meant for attack classification database linked to the SNMP (Simple Network Management protocol). Three classifiers are considered such as MLP, Random forest, Adaboost to construct the detection model. Significantly, Gated Recurrent Unit Neural Network based on Bidirectional Weighted Feature Averaging (GRU-BWFA) classifier is utilizing as a proposed classifier for high detection rate and accuracy in distinguishing the mentioned DDoS attacks. Feature selection is performed using the Enhanced Salp Swarm Optimization technique to select the optimal features for identify the attacks. The application of various classifier provides a detailed study on the effectiveness of SNMP-MIB dataset in detecting DDoS attacks. Empirical findings indicate that machine learning methods are highly effective at detecting and classifying the attacks with a higher accuracy rate.
Visual Evaluation of Regional Tourism Attractiveness Based On Transportation: a GIS Quantitative Analysis Method
Authors: Qin Xiaochun , Meng Fantong , Meitner Michael , Ni Anchen 
Published: December 2021

Abstract
The research in evaluating regional transportation tourism attractiveness has mainly based on qualitative or semi-quantitative analysis, and it has not been achieved quantitative and visual evaluation. The quantitative evaluation method of regional tourism attractiveness was established by employing the analytic hierarchy process and Delphi method in this paper. Moreover, the evaluation of tourism attractiveness was divided into four factors: natural condition index, tourism condition index, transportation condition index, and social economy index. The index weight was obtained by the judgment matrixes, and the weighted overlay analysis method using ArcGIS was adapted to study the coordinated development of tourism transportation. The results show that it was scientific and feasible to make a quantitative and visual tourism attractiveness evaluation based on the four aspects of natural condition, tourism condition, transportation condition, and social economy through the verification of a case study of the Great Jiuzhai Ring Tourist Area. The research revealed that the transportation system and the tourism system interacted with each other and had an excellent positive feedback mechanism, which could further promote the integrated development of transportation and tourism, and play theoretical and methodological guiding significance on regional tourism transportation network planning based on tourism resources.
Primary Care Disease Management for Venous Leg Ulceration – Study Protocol for the Ulcus Cruris Care [UCC] Randomized Controlled Trial (DRKS00026126)
Authors: Senft Jonas D , Fleischhauer Thomas , Frasch Jona , Rees Wiebke van , Feisst Manuel , Schwill Simon , Fink Christine , Poss-Doering Regina , Wensing Michel , Mueller-Buehl Uwe , Szecsenyi Joachim 
Published: December 2021

Abstract
Background
Venous leg ulcers (VLU) have a prevalence of 1–2% in developed countries and affected patients are severely and long-term impaired in daily activities, work and social participation. Evidence-based outpatient treatment based on compression therapy is frequently not implemented. The “Ulcus Cruris Care” project was established to develop a disease management concept to improve outpatient treatment for patients with VLU in German primary care. For this purpose, a multifaceted intervention was conceived consisting of an online training for general practitioners and medical assistants, standardized treatment recommendations, e-learning and print-based information for patients, and a software support for case-management. Main aims of the Ulcus Cruris Care intervention are to promote standardized treatment according to current scientific knowledge, to facilitate case management for VLU patients exerted by medical assistants and to support patient education and participation in the treatment process. The UCC trial was designed to evaluate the effectiveness of the Ulcus Cruris Care intervention.
Methods
The UCC trial is a prospective cluster-randomized controlled multicenter trial. Fifty GP practices are intended to be recruited and randomized 1:1 to intervention or control arm. Patients with venous leg ulcers will be recruited by participating GP practices, to include a total of 63 patients in each arm. The primary outcome is time to ulcer healing. Secondary outcomes comprise number and sizes of ulcers, recurrence, pain intensity according to the Visual Analogue Scale, health-related quality of life according to EQ-5D-5L, depressiveness according to Patient Health Questionnaire (PHQ-9), patient satisfaction according to the Patient Assessment of Chronic Illness Care (PACIC-5A) query and adherence to VLU treatment. The outcome analysis of the UCC trial is accompanied by a health economic analysis and a process evaluation.
Discussion
The UCC trial will evaluate whether the Ulcus Cruris Care intervention may lead to faster wound healing, higher health-related quality of life and lower use of medical resources. If the intervention turns out to have a positive impact on assessed outcomes, comprehensive implementation in primary care may be considered.
Trial registration
The trial protocol (version 1 as of July 19th, 2021) has been registered in the German Clinical Trials Register on August 30th, 2021 (DRKS000261265).
Molecular Delineation of De Novo Small Supernumerary Marker Chromosomes in Prenatal Diagnosis, A Retrospective Study
Authors: Hu Shuang , Kong Xiangdong 
Published: December 2021

Abstract
Background To define the genotype-phenotype correlation of small supernumerary marker chromosomes (sSMCs) and conduct precise genetic counseling, we retrospectively searched and reviewed de novo sSMC cases detected during prenatal diagnosis at The First Affiliated Hospital of Zhengzhou University. Chromosome karyotypes of 20,314 cases of amniotic fluid from pregnant women were performed. For 16 samples with de novo sSMCs, 10 were subjected to single-nucleotide polymorphism (SNP) array or low-coverage massively parallel copy number variation sequencing (CNV-seq) analysis. Results Among the 10 sSMC cases, two sSMCs derived from chromosome 9, and three sSMCs derived from chromosomes 12, 18 and 22. The remaining 5 cases were not identified by SNP array or CNV-seq because they lacked euchromatin or had a low proportion of mosaicism. Four of them with a karyotype of 47,XN,+mar presented normal molecular cytogenetic results (seq[hg19] 46,XN), and the remaining patient with a karyotype of 46,XN,+mar presented with Turner syndrome (seq[hg19] 45,X). Five sSMC samples were mosaics of all 16 cases. Conclusion Considering the variable origins of sSMCs, further genetic testing of sSMCs should be performed by SNP array or CNV-seq. Detailed molecular characterization would allow precise genetic counseling for prenatal diagnosis.
The Comparison of Breast Cancer in Southern China and America: a Multicentre Study in China Versus SEER Database
Authors: Niu Yingjie , Zhang Fan , Chen Dong , Ye Guolin , Li Yong , Zha Yong , Chen Wenlin , Liu Dequan , Liao Xiaoming , Huang Qinghua , Tang Wei , Cai Gengxi , Guo Rong , Li Hongyang , Tang Shicong 
Published: December 2021

Abstract
Background and Objective: There are different characteristics of BC in developing countries and developed countries. We intend to study the factors which influence the survival and prognosis of BC between southern China and the United States. Methods: To study the two groups BC patients in southern China from 2001 to 2016 and SEER database from 1975 to 2016. To register, collect and analyze the clinicopathological features and treatment information. Results: Our study found that there are significant differences in tumor size, positive lymph node status and KI-67 between southern China and SEER cohort (P<0.000). Conclusions: The age, tumor size, positive-node and KI-67 may cause the difference of morbidity and mortality of BC patients in southern China and SEER cohort.
Assessment of Hydration Process And Mechanical Properties of Cemented Paste Backfill By Rebound Method
Authors: Huang Sa , Wang Yongyan , Yu Zhuoqun , Du Peng , Liang Zhonghao 
Published: December 2021

Abstract
Backfilling mining method is a green mining method which is being used widely, nevertheless, the uniaxial compressive strength (UCS) of the cement backfill paste (CPB) on site is difficult to measure, and it is impossible to know the internal cementation, for this reason, the rebound method is improved and introduced in this paper. Standard specimens of CPB were made and cured for different curing age under standard curing conditions. The hardness test of each part of the CPB is completed, the unconfined compression test is carried out, and the functional model of the hardness of each part of the CPB is established, which was a function of radius and age. Based on the nonuniformity of the filling material, the failure mode of CPB is analyzed and verified in the test. The results show that the exponential function model is more suitable for the relationship between the external hardness and the overall strength, and this conclusion is of great significance in construction site. In addition, the corresponding relationship between hardness and local strength was calculated and verified, the results show that the simple model can predict the variation of local strength with hardness better, and the quadratic function model is the best choice.
PEMENUHAN HAK-HAK PENDIDIKAN ANAK PADA MASA PANDEMI COVID-19 PERSPEKTIF UNDANG-UNDANG PERLINDUNGAN ANAK
Authors: Sholihah Hani 
Published: December 2021

Abstrak: Memperoleh pendidikan merupakan salah satu hak anak. Pada masa pandemi Covid-19, proses pembelajaran di sekolah dilakukan secara daring (online). Dalam proses ini, terjadi beberapa kasus kekerasan terhadap anak. Oleh karena itu, penelitian ini bertujuan untuk mengetahui bagaimana pemenuhan hak-hak pendidikan anak dan bagaimana perlindungan anak dari tindak kekerasan pada masa pandemi Covid-19 dalam perspektif Undang-Undang Nomor 23 Tahun 2002 tentang Perlindungan Anak, khususnya pasal 50 dan 54. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kuantitatif. Pengumpulan data dilakukan dengan cara penyebaran angket melalui google form, yang disebarkan via whatsapp. Subjek yang digunakan pada penelitian ini adalah orang tua siswa Sekolah Dasar/Madrasah Ibtidaiyah Kota dan Kabupaten Tasikmalaya dengan mengambil 227 responden. Hasil penelitian menunjukkan bahwa pemenuhan hak-hak anak dalam bidang pendidikan pada masa pandemi Covid-19, pada jenjang pendidikan SD/MI di Kota dan Kabupaten Tasikmalaya, sangat baik dengan perolehan nilai rata-rata yang termasuk kategori sangat tinggi. Namun, perlindungan anak dari tindakan kekerasan, baik fisik maupun psikis, belum sepenuhnya terpenuhi. Meskipun dengan jumlah kasus yang tidak terkategori tinggi, tindakan kekerasan terhadap anak dalam bentuk apapun, merupakan sesuatu yang tidak dibenarkan dan harus dicegah.

Abstract: Obtaining education is one of the rights of children. During the Covid-19 pandemic, the learning process in schools was carried out online. In this process, several cases of violence against children occurred. Therefore, this study aims to find out how to fulfill children's education rights and how to protect children from violence during the Covid-19 pandemic in the perspective of Law Number 23 of 2002 concerning Child Protection, particularly articles 50 and 54. The method used is used in this research is a descriptive method with a quantitative approach. Data collection was carried out by distributing questionnaires via a google form, which was distributed via WhatsApp. The subjects used in this study were the parents of students of the Elementary School / Madrasah Ibtidaiyah Kota and Tasikmalaya Regency by taking 227 respondents. The results showed that the fulfillment of children's rights in the education sector during the Covid-19 pandemic, at the SD / MI education level in the City and District of Tasikmalaya, was very good with the acquisition of an average score which was in the very high category. However, child protection from acts of violence, both physical and psychological, has not been fully fulfilled. Even with the number of cases that are not categorized as high, acts of violence against children in any form are something that is not justified and must be prevented.
Travelling narratives and images in times of migration
Authors: Åsebø Sigrun , Gjesdal Anje Müller , Skalle Camilla 
Published: December 2021

Abstract
Migrant narratives and aesthetic practices influenced by experiences of exile and migration constitute a growing field in contemporary art and literature. Current trends in migration and globalisation have lead to an increase in travelling narratives, images and objects, and the production of aesthetic practices describing and problematising exile and migration, working in and through tradition. Migratory patterns and issues related to the protection of refugees and asylum seekers contribute to the strong societal impact of migrant aesthetics and narratives, but they also serve to explain the need for them as such, and the need to reexamine them. More than ever, we need to understand the experiences of exiles, migrants and refugees. The objective of this special issue is therefore to examine textual, material and visual expressions that represent, discuss and problematise migration.
Art and contemporary Irish emigrants: Aesthetics and networks of affect in David Monahan’s ‘Leaving Dublin’
Authors: Williams Rachel L. 
Published: December 2021

Abstract
Photographer David Monahan’s Leaving Dublin serves as a lens for examining the roles played by networks of affect and aesthetics in the contemporary Irish experience of migration. This article explores the series from the perspective of Actor-Network Theory. I will consider how the Internet has changed both experiences of migration and the creation and distribution of art by altering networks of affect. I will also discuss the role contemporary art plays in these networks, serving as a nexus between personal and public experiences of migration.
‘White queens’ and ‘Nubian fiends’: Early Italian American fiction and the problem of colonialism
Authors: Ciribuco Andrea 
Published: December 2021

Abstract
This article analyses the transatlantic influence of colonialist discourse regarding Italian colonial wars in East Africa, by focusing on literary texts. In the emerging Italian American literature, two works by key authors reflected on the impact of colonialist propaganda in the Italian America. Emanuel Carnevali’s ‘Tale One’ (1919) centers on his aunt’s experience in Eritrea around the time of the battle of Adwa (1896). The analysis of these two texts, which rewrote and challenged the central elements of nationalist propaganda, offers a unique chance to understand the complex relationship between nationalist discourse and diasporic communities, in a textual form—migrant literature—that by definition re-uses and combines elements from different cultural spaces to make sense of the experience of displacement.
Stitching the cloths of serial migrant life: The quilts of Barbara James
Authors: Ossman Susan 
Published: December 2021

Abstract
In this article, I study the quilting practice of Barbara James to investigate the making of serial migrant subjects. Serial migrants are not from a single place, nor do they travel in the same direction. They have moved beyond a first experience of immigration and in so doing, step beyond the home/host dualities of immigration. One might see the project of following their paths as a move from accounts of the creative, imaginative ‘third space’ produced by immigrants’ arrival in their new homes, toward a consideration of the concrete ‘third place’ of the second or third-time immigrant. Exile, economic migrant, love migrant, exchange student, refugee: a serial migrant adds up not just several identities but systems of categorisation over time. This migratory subject often changes ‘positions’ not only geographically but socially, making us question the static assumptions of social theory with their experiences of diverse approaches to nationality, class, race, ethnicity and gender.
Travelling toponymy: The contribution of place names to the textual representation of place and memory in Abdellah Taïa’s Une mélancolie Arabe
Authors: Gjesdal Anje Müller 
Published: December 2021

Abstract
Narratives of exile and migration pose important questions related to the role of language in the representation of space, both that of home and away as well as sites of transit. This article argues that the textualisation of space is a central strategy for representing these spaces as place, i.e. as the site and product of lived experience, and that toponyms, place names are an important linguistic tool in this respect. The article draws on critical place name studies in order to examine the political and emotional aspects of place names in narratives of exile and migration. To do so, it examines the role of place names in Abdellah Taïa’s novel Une mélancolie Arabe, a text where place names play an important role, as the protagonist navigates between his native Morocco, his adopted city Paris, and Cairo, capital of the Arab world; and where the names of the cities come to function as symbolic representations of home and freedom. The use of place names thus becomes a means of recreating places that may be geographically distant, but emotionally close. Moreover, the close relations the text establishes between place names on the one hand, and emotions and affect on the other, give reason to reconsider the textual and mnemonic functions of place names.
Bordering: Creating, contesting and resisting practice
Authors: Klein Elise , Kothari Uma 
Published: December 2021

Abstract
Materially and symbolically manifest, borders are shaped by history, politics and power. This first special issue of a two-part series brings together an international collective of authors who presented their papers at a conference on Technologies of Bordering convened by the editors at the University of Melbourne, Australia in July 2019. We invited presentations that critically engage with multiple and varied forms of bordering as expressions of power and oppression, as well as those that considered the possibilities and aspirations for more hopeful and progressive futures. Articles explored a range of issues from borders within and beyond detention centres and carceral systems to colonial and postcolonial forms of bordering. Drawing on a variety of empirical research across different spaces and scales, a range of theoretical perspectives and a diversity of methodological approaches, the articles collectively address the material, digital, virtual and human technologies that divide, exclude, contain, control and govern humans and non-humans.