bluuebunny/crossref_metadata_2025 huggingface dataset:
SpineDepth: A Multi-Modal Data Collection Approach for Automatic Labelling and Intraoperative Spinal Shape Reconstruction Based on RGB-D Data
Authors: Liebmann Florentin , Stütz Dominik , Suter Daniel , Jecklin Sascha , Snedeker Jess G. , Farshad Mazda , Fürnstahl Philipp , Esfandiari Hooman
Published: August 2021

Computer aided orthopedic surgery suffers from low clinical adoption, despite increased accuracy and patient safety. This can partly be attributed to cumbersome and often radiation intensive registration methods. Emerging RGB-D sensors combined with artificial intelligence data-driven methods have the potential to streamline these procedures. However, developing such methods requires vast amount of data. To this end, a multi-modal approach that enables acquisition of large clinical data, tailored to pedicle screw placement, using RGB-D sensors and a co-calibrated high-end optical tracking system was developed. The resulting dataset comprises RGB-D recordings of pedicle screw placement along with individually tracked ground truth poses and shapes of spine levels L1–L5 from ten cadaveric specimens. Besides a detailed description of our setup, quantitative and qualitative outcome measures are provided. We found a mean target registration error of 1.5 mm. The median deviation between measured and ground truth bone surface was 2.4 mm. In addition, a surgeon rated the overall alignment based on 10% random samples as 5.8 on a scale from 1 to 6. Generation of labeled RGB-D data for orthopedic interventions with satisfactory accuracy is feasible, and its publication shall promote future development of data-driven artificial intelligence methods for fast and reliable intraoperative registration.
Implementing emergency admission risk prediction in general practice: a qualitative study
Authors: Evans Bridie Angela , Dale Jeremy , Davies Jan , Hutchings Hayley , Kingston Mark , Porter Alison , Russell Ian , Williams Victoria , Snooks Helen
Published: August 2021

Background

Using computer software in general practice to predict patient risk of emergency hospital admission has been widely advocated, despite limited evidence about effects. In a trial evaluating the introduction of a Predictive Risk Stratification Model (PRISM), statistically significant increases in emergency hospital admissions and use of other NHS services were reported without evidence of benefits to patients or the NHS.

Aim

To explore GPs’ and practice managers’ experiences of incorporating PRISM into routine practice.

Design and setting

Semi-structured interviews were carried out with GPs and practice managers in 18 practices in rural, urban, and suburban areas of south Wales.

Method

Interviews (30–90 min) were conducted at 3–6 months after gaining PRISM access, and ∼18 months later. Data were analysed thematically using Normalisation Process Theory.

Results

Responders (n = 22) reported that the decision to use PRISM was based mainly on fulfilling Quality and Outcomes Framework incentives. Most applied it to <0.5% practice patients over a few weeks. Using PRISM entailed undertaking technical tasks, sharing information in practice meetings, and making small-scale changes to patient care. Use was inhibited by the model not being integrated with practice systems. Most participants doubted any large-scale impact, but did cite examples of the impact on individual patient care and reported increased awareness of patients at high risk of emergency admission to hospital.

Conclusion

Qualitative results suggest mixed views of predictive risk stratification in general practice and raised awareness of highest-risk patients potentially affecting rates of unplanned hospital attendance and admissions. To inform future policy, decision makers need more information about implementation and effects of emergency admission risk stratification tools in primary and community settings.
Enhanced the Weighted Centroid Localization Algorithm Based on Received Strength Signal in Indoor Wireless Sensor Network
Authors:   Orange Business Services (Mauritius) Ltd, Mauritius, Kumar Goonjur Medhav , Dwiguna Sumitra Irfan ,   Magister Sistem Informasi, Universitas Komputer Indonesia, Indonesia, Supatmi Sri ,   Magister Sistem Informasi, Universitas Komputer Indonesia, Indonesia
Published: August 2021

A challenging problem that arises in the Wireless Sensor Network (WSN) is localization. It is essential for applications that need information about target positions, are inside an indoor environment. The Localization scheme presented in this experiment consists of four anchor nodes that change their position coordinates and one target node that is used to control the distance. The Localization algorithm designed in this paper makes use of the combination of two algorithms; the Received Strength Signal Indication (RSSI) and Weight Centroid Localization Algorithm (WCLA), called the RSSI-WCLA algorithm. The laboratory results show that the fusion between the RSSI-WCLA algorithm is outstanding than RSSI and WCLA algorithms itself in terms of localization accuracy. However, our proposed algorithm shows that the maximum error distance is less than 0.096m.
Air Quality Prediction in Smart City’s Information System
Authors:   Department of the Industrial and Systems Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Republic of Korea, Kristianto Singgih Ivan
Published: August 2021

The introduction of new technology and computational power enables more data usages in a city. Such a city is called a smart city that records more data related to daily life activities and analyzes them to provide better services. Such data acquisition and analysis must be conducted quickly to support real-time information sharing and support other decision-making processes. Among such services, an information system is used to predict the air quality to ensure people's health in the city. The objective of this study is to compare various machine learning techniques (e.g., random forest, decision tree, neural network, naïve Bayes, etc.) when predicting the air quality in a city. For the comparison, we perform the removal of records with empty values, data division into training and testing datasets, and application of the k-fold cross-validation method. Numerical experiments are performed using a given online dataset. The results show that the three best methods are random forest, Gradient Boosting, and k-nearest neighbors with precision, recall, and f1-score values more than 0.63
Fog Computing Architecture for Indoor Disaster Management
Authors:   Faculty of Information and Communication Technology, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia, Id Hadiana Asep
Published: August 2021

Most people spend their time indoors. Indoors have a higher complexity than outdoors. Moreover, today's building structures are increasingly sophisticated and complex, which can create problems when a disaster occurs in the room. Fire is one of the disasters that often occurs in a building. For that, we need disaster management that can minimize the risk of casualties. Disaster management with cloud computing has been extensively investigated in other studies. Traditional ways of centralizing data in the cloud are almost scalable as they cannot cater to many latency-critical IoT applications, and this results in too high network traffic when the number of objects and services increased. It will be especially problematic when in a disaster that requires a quick response. The Fog infrastructure is the beginning of the answer to such problems. This research started with an analysis of literature and hot topics related to fog computing and indoor disasters, which later became the basis for creating a fog computing-based architecture for indoor disasters. In this research, fog computing is used as the backbone in disaster management architecture in buildings. MQTT is used as a messaging protocol with the advantages of simplicity and speed. This research proposes a disaster architecture for indoor disasters, mainly fire disasters
Computation Application: Techno-Economic Analysis on the Production of Magnesium Oxide Nanoparticles by Precipitation Method
Authors:   Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Indonesia, Intan Febriani Lidia , Nurhashiva Citra ,   Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Indonesia, Veronica Jessica ,   Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Indonesia, Ragadhita Risti ,   Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Indonesia, Bayu Dani Nandiyanto Asep ,   Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Indonesia, Kurniawan Tedi ,   College Community of Qatar, Qatar
Published: August 2021

This study aims to analyze the feasibility of a project for the production of magnesium oxide nanoparticles using precipitation methods on a large scale. The feasibility analysis of this project was determined using an evaluation from an economic and engineering perspective. Evaluation from an engineering perspective is determined by the evaluation of the initial factory design and stoichiometric calculations. Meanwhile, the evaluation from an economic perspective is determined by several parameters, such as Payback Period, Gross Profit Margin, Cumulative Net Present Value, etc. The analysis results show that the production of magnesium oxide nanoparticles using the precipitation method can be carried out on an industrial scale. In this project, 11,250 kg ofmagnesium oxide nanoparticles were obtained per day, and the total profit earned was 1,881,184,752.91 USD in 10 years. Payback Period analysis shows that the investment will be profitable after more than three years. To ensure project feasibility, projects are estimated from ideal to worst-case conditions in production, including salary, sales, raw materials, utilities, and external conditions such as taxes
Implementation of Information System in Indonesian Traditional Beverage Businesses
Authors:   Departemen Manajemen, Universitas Komputer Indonesia, Indonesia, Purnomo Hadi , Fitrah F R ,   Departemen Sistem Informasi, Universitas Komputer Indonesia, Indonesia, Maulana R , Pratadina M M ,   Departemen Sistem Informasi, Universitas Komputer Indonesia, Indonesia
Published: August 2021

This study aims to apply the information system to every business owner who can inform businesses beverage container business through information technology. The function of this information system's application is for business owners and customers interested in buying products business. This study is an application of information systems in the Indonesian Traditional Beverage Business. This study's method was conducted using qualitative descriptive writing method of collecting data through literature study and observation to the growing beverage business owners. Information system development is conducted using the waterfall method. The results of this study show an overview of how the information system is expected by the business owner as well as the beverage business impact that can provide the quality of the business product beverage business is being run. The conclusion is that there is a large information container such as a website application applied to the Indonesian traditional beverage business so that website visitors can see, buy, or provide suggestions or comments regarding the already available products
Utilization of Communication Technology for Business
Authors:   Accounting Departement, Economic and Business Faculty, Universitas Komputer Indonesia, Indonesia, Puspitawati Lilis , Nurhasanah A , Khaerunnisa A S
Published: August 2021

Advances in technology, computers, and telecommunications support the development of internet technology. Currently, the IT function in society has begun to change. Initially, the IT function as a means of exchanging electronic information to an application that is used to implement corporate business strategies such as marketing, sales, and customer service activities. The purpose of this study is to get empirical evidence of the benefits of using communication technology for business people. This research used a descriptive method by conducting a survey in the form of a questionnaire and conducting several further interviews. The results showed that using communication technology such as the Digital Platform can make it easier for sellers to market products and make it easier to interact with buyers. This research discusses that using communication technology such as the Digital Platform is one of the best business strategies. The conclusion obtained in this study is that the Digital Platform is the best solution to expand business networks and make it easier for sellers and buyers to make transactions. The benefit of doing this research is to find out the meaning and purpose of developing business communication by involving digital technology in marketing products or services.
Sustainability Policy in Indonesia: Case Study Economic Structure and Determinants in Banjar Municipality
Authors:   The School of Geography, Nanjing Normal University, Nanjing 210023, China, Supriyadi Agus , Wang Tao , Ria Juwita Melda , Gunaningrat Rayhan ,   Program Studi Manajemen, Fakultas Hukum dan Bisnis, Universitas Duta Bangsa, Indonesia, Safitri Susi , T Cirella Giuseppe ,   Faculty of Economics, University of Gdansk, 81-824 Sopot, Poland
Published: August 2021

In response to governance shift in Indonesia, a heavy burden of responsibility is placed on local authorities to act in the best interest of its citizenry. This study examined evidence of local government policy, economic structure, and economic growth in the new autonomous city of Banjar Municipality, West Java Province, Indonesia and assessed determinants of regional transformation. The methodology used location quotient, analysis, shift-share analysis, and ordinary least square regression analysis. The findings revealed in the ten-year period of the study on agriculture, business trade, accommodation, other sectors and public service dominated the structure of the economy. In terms of the authority, the Municipality’s policy of sustainability is aimed at protecting the traditional market and developing local road infrastructure—contributing to its economic growth. Sustainability-oriented policies are designed to stress order, control, and accelerate economic activities which regional authorities sometimes considering them as challenging due to transitional requirements and demands
Practical Computation in the Techno-Economic Analysis of the Production of Magnesium Oxide Nanoparticles using Sol-gel Method
Authors:   Departemen Pendidikan Kimia, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no. 229, Bandung, 40154, Indonesia, Veronica Jessica , Intan Febriani Lidia ,   Departemen Pendidikan Kimia, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no. 229, Bandung, 40154, Indonesia, Nurhashiva Citra ,   Departemen Pendidikan Kimia, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no. 229, Bandung, 40154, Indonesia, Ragadhita Risti ,   Departemen Pendidikan Kimia, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no. 229, Bandung, 40154, Indonesia, Dani Nandiyanto Asep Bayu ,   Departemen Pendidikan Kimia, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no. 229, Bandung, 40154, Indonesia, Kurniawan Tedi ,   Community College of Qatar, Qatar
Published: August 2021

The purpose of this study was to determine the feasibility of a project for the manufacture of magnesium oxide nanoparticles using the sol-gel method by evaluating both technically and economically. Evaluation from the technical side is determined by stoichiometric calculations and evaluation of the initial factory design, while the evaluation from the economic side is determined by several parameters to determine the benefits of the project to be established (Gross Profit Margin, Internal Rate Return, Break-Even Point, Payback Period, and Cumulative Net Present Values). Some of these economic evaluation parameters were analyzed to inform the production potential of magnesium oxide nanoparticles, such as determining the level of profitability of a project (Gross Profit Margin), predicting the length of time required for an investment to return the initial capital expenditure (Payback Period), predicting the condition of a production project in the form of a production function in years (Cumulative Net PresentValue), etc. The results of the technical analysis show that this project can produce 1,425 kg of magnesium oxide nanoparticles per day and the total cost of the equipment purchased is 45,243 USD. Payback Period analysis shows that the investment will be profitable after more than three years. To ensure project feasibility, the project is estimated from ideal to worst-case conditions in production, including salary, sales, raw materials, utilities, as well as external conditions such as taxes
Crowd Detection Using YOLOv3-Tiny Method and Viola-Jones Algorithm at Mall
Authors:   Center for Artificial Intelligence Technology, Universitas Kebangsaan Malaysia, Malaysia, Lorena Br Ginting Selvia , Maulana Hanhan ,   Japan Advanced Institute of Science and Technology, Alfaridzi Priatna Riffa ,   Departemen Teknik Informatika, Universitas Komputer Indonesia, Indonesia, Deriyana Fauzzan Deran ,   Departemen Teknik Informatika, Universitas Komputer Indonesia, Indonesia, Setiawan Devidli ,   Departemen Teknik Informatika, Universitas Komputer Indonesia, Indonesia
Published: August 2021

Indonesia is one of the countries affected by Covid-19 which is spreading quite fast. Lately, the surge in Covid19 cases in Indonesia is quite high, due to the lack of public awareness of the current health protocols, such as avoiding crowds and keeping a distance. The purpose of this study is to reduce crowds that occur in places with a high risk of crowding, for example in mall. Detection is done by using Closed Circuit Television (CCTV) in the mall and using the YOLOv3-Tiny method and the ViolaJones Algorithm to detect the crowd. To support the research, we use the method of literature study and field observation at Cimahi Mall as one of the malls in the area of Bandung Raya. The results show that to reduce the number of crowds that occur in the mall, crowd detection must be carried out using the YOLOv3-Tiny method and the Viola-Jones Algorithm, and a warning system is given if a crowd is detected in the place. The main concept of this system is crowd detection and warning if there is a crowd located on CCTV in the Mall. In our opinion, when this system is running in malls that occur in Indonesia, the number of positive cases of COVID-19 in Indonesia will decrease because there are no crowds. It can be concluded that this system exists as a precaution against the crowds that often occur today at the mall. Prevention is done by detecting crowds and giving warnings if there is a crowd so that positive cases of COVID-19 in Indonesia will be reduced.
Leylâ vü Mecnûn Mesnevîlerinde Bulunan Bazı Motiflerin Dinî ve Tarihî Kökenleri
Authors: SAĞLAM Hacer
Published: August 2021

Edebî metinlerin anlamlı en küçük unsurlarını ifade eden motifler, anlatma esasına dayalı metinlerde; sıradışı, olağanüstü, geleneksel veya evrensel, mütekerrir, ayrıştırılamaz vasıfları haiz yapı taşlarını oluştururlar. Motifler, sözlü kültür ürünlerinden yazılı kültür eserlerine kadar geniş bir yayılım alanına sahiptir. İlk anlatılar olarak kabul edilen destanlardaki motifler; masallar, halk hikâyeleri, mesnevîler ve hatta günümüzdeki modern anlatı türlerine kadar intikal etmiş ve etmekte olan unsurlar olarak dikkat çekmektedir. Bununla birlikte, çeşitli eserlerde karşılaştığımız motiflerin bir kısmının, varlıklarını destan öncesi zamanlardan aldığı fark edilmektedir. Metinler geriye doğru takip edildikçe motiflerin dinî ve tarihî kökenlerini görmek mümkün olur. Özellikle peygamberler tarihine kadar uzanan, kutsal metinlerde yer alan bazı motiflerin varlığı, divan edebiyatının anlatma esasına dayalı eserlerinde çeşitli şekillerde karşımıza çıkar. Bazı motiflerin ise dünyevî sınırların dahi üstünde oldukları, arketipsel nitelik taşıdıklarını ispat etmektedir. Motiflerin kaynaklandıkları dinî ve tarihî kökenler, onların çeşitli türlerdeki varlıklarının nedenini oluşturur. Divan edebiyatının önemli anlatı kaynakları olan mesnevîlere intikal etmiş bu motifler, mesnevîlerin destan öncesi devirlerden gelen metinlerarası bağlamdaki yerine ışık tutar. Divan edebiyatında Leylâ vü Mecnûn mesnevîleri, söz konusu eserlerden biri olarak öne çıkmaktadır. Bu makalede, tarih öncesi devirlerden mesnevîlere, özelde ise Leylâ vü Mecnûn mesnevîlerine intikal etmiş bazı motiflerin dinî ve tarihî kökenleri üzerinde durulacaktır.
Mi‘râciye Türünde Yeni Bir Örnek Lebîb Efendi’nin Mi‘râciye’si
Authors: GÜNDÜZ Emrah
Published: August 2021

İslam dinini benimsemiş Osmanlı’da, dinî temaların kalem erbabınca edebiyata aktarıldığı görülür. Hz. Muhammed’in (s.a.) başından geçen mir‘âc hadisesi hem manzum hem de mensur şekillerde edebiyata aksetmiş bu dinî temalardan yalnızca bir tanesidir. Osmanlı edebiyatında mi‘râc konusunda yazılmış eserlerin genel motiflerle ele alındığı ve bu motiflerin kaynağının Necm ve İsrâ sureleri olduğu görülmektedir. Mi‘râc hadisesinin genel motiflerle ele alındığı Lebîb Efendi’nin Mi‘râciye’si bu tür eserlerdendir. 18. yüzyılda yazıldığı düşünülen Mi‘râciye’nin müellifi hakkında pek fazla bilgi bulunmamaktadır. Nazım ve nesir karışık formda yazılmış eserde tipik motiflerle birlikte farklı motiflerin de işlendiği görülür. Mi‘râciye, en erken 1792 tarihli fevaid kaydı taşımakta olup, yurtdışında bir yazma eser kütüphanesinde tespit edilmiştir. Tespit edilen bu el yazması eserin daha önce bu tür üzerine yapılmış derlemelerde akademik çalışmalarda değerlendirilmediği fark edilmiştir.Bu makalede Lebîb Efendi ve Mi‘râciye’sinin tanıtımı ve ön incelemesi yapılmıştır. Bu türden eserlere yeni bir örnek olacak olan Mi‘râciye’nin, transkribe edilerek edebiyat dünyasına tanıtılması amaçlanmıştır.
Ârifî’nin Kenzu’r-rumûz Adlı Mesnevisi Üzerine Bir İnceleme
Authors: NALBAT Muhammet
Published: August 2021

Klasik Türk edebiyatı geleneğine ait mesnevilerin bir kısmı, İran edebiyatındaki numunelerin tesiri altında kaleme alınmıştır. Bazı klasik Türk edebiyatı şairlerinin Farsça mesnevileri tercüme veya şerh etmesi, yine bu mesnevilere nazireler yazması söz konusu tesiri açıkça göstermektedir. Farsçadan Türkçeye tercüme edilen mesneviler arasında dinî-tasavvufi ve ahlaki konuları ihtiva edenlerin sayısı oldukça fazladır. Dolayısıyla bu neviden mesneviler, tasavvuf ile klasik Türk şiiri arasındaki münasebetin anlaşılması ve klasik İran edebiyatından Türkçeye tercüme edilen eserlerin hüviyetinin ortaya konulması için büyük önem arz etmektedir.Bu makalede Emir Hüseynî Sâdât el-Gûrî el-Herevî tarafından Farsça kaleme alınan Kenzu’r-rumûz adlı dinî-tasavvufi mesnevi ve bu mesnevinin daha önce ilmî bir çalışmaya konu olmamış aynı isimli Türkçe tercümesi tanıtılacaktır. 943 beyitten oluşan söz konusu tercüme, Ârifî mahlaslı bir şair tarafından kaleme alınmış olup tek nüshası Leipzig Üniversitesi Kütüphanesi İslam El Yazmaları Bölümünde bulunmaktadır.Makalenin “Giriş” bölümünden sonra Emir Hüseynî’nin hayatı, eserleri ve Kenzu’r-rumûz adlı mesnevisi hakkında malumat verilecektir. Ardından Ârifî’nin Kenzu’r-rumûz’u şekil, muhteva, üslup ve tercüme özellikleri bakımından ele alınarak eserin Türk edebiyatındaki yeri tespit edilmeye çalışılacaktır.
Trayectorias socioeducativas de maestro/as indígenas del centro chaqueño
Authors: Aliata Soledad
Published: August 2021

Este artículo es parte del trabajo de tesis doctoral en Antropología Social, centrada en documentar la diversidad y complejidad en las trayectorias socioeducativas de un grupo de maestros/as indígenas de la provincia del Chaco, Argentina. En el este escrito presentaremos algunas de las reflexiones del análisis de dichas trayectorias. Desde una perspectiva etnográfica, abordaremos los relatos autobiográficos de dos maestros/as indígenas articulando las trayectorias de los sujetos con ciertos procesos de diversidad y desigualdad socioeducativa de la región. Se trata de un primer acercamiento al análisis que busca destacar la perspectiva de los/as maestros/as indígenas, reflexionar acerca de distintos aspectos que emparentan y/o diferencian sus relatos y a su vez, comprender ciertos sucesos socio históricos que consideramos fundamentales para avanzar en el análisis de los procesos socioeducativos en contextos interculturales actuales.
Procesos de patrimonialización en las exhibiciones antropológicas/arqueológicas del Museo del Fin del Mundo (Tierra del Fuego, Argentina)
Authors: Butto Ana , Fiore Danae
Published: August 2021

En este trabajo se analizan los artefactos producidos por poblaciones indígenas fueguinas expuestos en la exhibición antropológica/arqueológica del Museo del Fin del Mundo, ubicado en la ciudad de Ushuaia (Tierra del Fuego, Argentina), a fin de indagar en su proceso de patrimonialización como objetos museográficos. Para ello, se describe analíticamente dicha exhibición y se analizan: (a) los artefactos expuestos –arqueológicos, etnográficos y contemporáneos– y (b) la información escrita y visual asociada a dichos artefactos. De esta manera, se propone una aproximación a parte de los procesos de formación de la colección expuesta, centrándonos en discutir el proceso de selección y patrimonialización de estos objetos museográficos. Así, se indagan y discuten los contenidos, discursos e imaginarios que transmite el museo acerca del patrimonio cultural de los pueblos originarios fueguinos.
Geração, um conceito situado
Authors: Da Cunha Sandra Mara
Published: August 2021

Este artigo tematiza geração, categoria social de análise central da Sociologia da Infância, com o objetivo de refletir sobre o termo com base em dados de pesquisa etnográfica de pós-doutorado, desenvolvida com crianças e jovens da Congada de Santa Efigênia, de Mogi das Cruzes, São Paulo, Brasil, entre os anos 2016 e 2018, no âmbito da Faculdade de Educação da Universidade de São Paulo. Como resultado, geração pode ser mais bem compreendida na análise das relações intergeracionais marcadas por forte sentido de parentesco que caracterizam o grupo, assinalando a existência de duas gerações: a) aprendizes – crianças e jovens que, nas trocas de saberes com b) seus mestres – composta por adultos e idosos, conferem sentido ao seu pertencimento à Congada de Santa Efigênia. Propõe-se, assim, que geração seja compreendida dentro dos contextos de vida e a eles relacionada
¿Nadies? ¿Sin nadie? ¿Mapuche?
Authors: Cecchi Paula
Published: August 2021

A partir de entrevistas y registros etnográficos de movilizaciones que recorrieron la ciudad de Viedma (provincia de Río Negro) desde los barrios populares hacia el centro, este trabajo analiza cómo impacta el racismo en la vida cotidiana de estas personas –particularmente entre los colectivos mapuche– y, a su vez, cómo estas confrontan con las narrativas hegemónicas y vehiculizan sus estrategias de resistencia y fortalecimiento. Mientras que los discursos hegemónicos reproducen el racismo y naturalizan condicionamientos históricos, los discursos elaborados por colectivos mapuche critican estos efectos y plantean una lectura disidente sobre los procesos de racialización, a través de la cual cuestionan el rol del Estado y reflexionan sobre la historia compartida, silenciada, desde la que buscan recomponer sus vínculos como pueblo.
"Vivir trabajando en tierra ajena"
Authors: Aljanati Lucia , González Diana Victoria , Maidana Carolina Andrea
Published: August 2021

En este artículo analizamos los reclamos territoriales de la comunidad indígena ava guaraní Iwi Imenb´y (Hijos de la Tierra) asentada en la Provincia de Buenos Aires (Argentina) y sus desplazamientos forzados desde los territorios de origen hacia los territorios de migración, en el contexto de flujos dinámicos de población y tensiones en torno al capital y la naturaleza. Ello nos conduce a afirmar que sus demandas y sus luchas se fundamentan en la existencia de lógicas de producción material y reproducción simbólica distante y opuesta a la hegemónica –centrada en el individualismo y la competencia–, y a resaltar la necesidad de reparación histórica y de efectivización de los derechos indígenas. La metodología cualitativa incluyó entrevistas a referentes de la comunidad y observación participante/participación objetivante en diferentes espacios compartidos (comunitarios/académicos), donde nuestra presencia activa afectó las relaciones establecidas con quienes forman parte del objeto de esta investigación, posibilitando la construcción conjunta de conocimiento.
Time-Dependent Afterglow from a Single Component Organic Luminogen
Authors: Yang Tianjia , Wang Yunzhong , Duan Jixuan , Wei Shuangyu , Tang Saixing , Yuan Wang Zhang
Published: August 2021

Pure organic luminogens with long-persistent luminescence have been extensively studied, on account of their fundamental research significance and diverse utilizations in anticounterfeiting, bioimaging, encryption, organic light-emitting diodes, chemo-sensing, etc. However, time-dependent color-tunable afterglow is rarely reported, especially for single-component materials. In this work, we reported an organic luminogen with time-dependent afterglow, namely, benzoyleneurea (BEU), with multiple persistent room-temperature phosphorescence (p-RTP) and thermally activated delayed fluorescence (TADF) in single crystals. While the lifetime of TADF is relatively short (~1.2 ms), those for p-RTP are as long as around 369~754 ms. The comparable but different decay rates of diversified p-RTP emissions endow BEU crystals with obvious time-dependent afterglow. The existence of multiple emissions can be reasonably illustrated by the clustering-triggered emission (CTE) mechanism. Single-crystal structure illustrates that the combination of benzene ring and nonconventional chromophores of ureide helps facilitate divergent intermolecular interactions, which contribute to the formation of varying emissive species. Moreover, its methyl- and chloro-substituted derivatives show similar multiple p-RTP emissions. However, no time-dependent afterglows are observed in their crystals, due to the highly approaching lifetimes. The afterglow color variation of BEU crystals grants its applications in advanced anticounterfeiting field and information encryption.
Perceptions of Tenth-century European elites by Hrotsvitha of Gandersheim, Thietmar of Merseburg, Odilo of Cluny, the Quedlinburg Annales , and other contemporary chroniclers
Authors: Nash Penelope
Published: August 2021

Many of the actions of elites, especially kings, and their followers, are known through the writings and images of their contemporaries. However, the motives attributed to these privileged members of society by their peers, although often plausible, present only a partial picture. In the tenth century in the West, an age when authority resided predominantly with the ruler and when primogeniture was not firmly established, the motives of struggling or jealous elites often encompassed a naked search for power. Such motives meant that would-be rulers started arguments and battles to obtain such power, but perhaps disguised their motives under more worthy aims. The chroniclers of these deeds were at times themselves deceived or had their own agendas. Queens and other aristocratic women sought power no less often than their male counterparts. Bound more rigidly by an expected code of action their methods were more circumscribed. Nevertheless the ruling women in tenth-century Italian and German lands had in general more scope than women in other western kingdoms. They created favourable images of self which came to be accepted and promoted to a surprising degree by the chroniclers of their actions: Widukind of Corvey, Hrotsvitha of Gandersheim, the anonymous author of the Quedlinburg Annales, Odilo of Cluny, and Thietmar of Merseburg cooperated in these creations. With the greater access by modern readers to new edited volumes of these works and their availability via electronic means, it is possible to undertake new analysis and come to understandings not previously conceivable.
Servants of god?: Servi in the letters of Gregory the great
Authors: Bailey Lisa Kaaren
Published: August 2021

When Gregory the Great styled himself 'servant of the servants of God' in his correspondence, he was drawing on a long tradition of using service as a metaphor to describe appropriate religious leadership and piety. However, his letters also reveal a church filled with servi, whose service to religion was neither metaphorical nor chosen, and upon whom both religious institutions and individuals were utterly dependent. This article explores the conjunction and disjunction between the rhetoric of service as a religious ideal in Gregory's correspondence, and the reality of service, which his letters indirectly reveal. It argues that the rhetoric and reality of service both shaped each other and that service thereby became a determinative model of behaviour in late antique and early medieval Christianity. Gregory's letters are therefore a useful case-study through which to explore an important issue in the development of the church as a sociallyembedded institution.
Violencias en la educación y la urbanidad: el caso de Londrina, Brasil
Authors:   Universidade Estadual de Londrina, Duarte Pinheiro Ana Claudia , Sánchez Malagón Edward Rodrigo ,   Universidade Estadual de Londrina, Camargo Torrezani Neiva ,   Universidade Estadual de Londrina
Published: August 2021

La problemática de las violencias se dirige a la forma en que se desarrolló la historia de la ciudad de Londrina, Brasil, a partir de uno de los equipamientos públicos escogidos para el análisis, la Biblioteca Pública Municipal. La provisión de un servicio bibliotecario y mantenimiento de un espacio público aparentemente indican un eficiente servicio público, pero ocultan el deterioro y poca relevancia concedidos por las instituciones estatales encargadas de la educación pública y la historia de la ciudad. Esto da pie a las violencias estructurales y emergentes en el espacio público londrinense.
Violencias estructurales y emergentes: suicidio y Camelódromo en Londrina, Brasil
Authors:   Universidade Estadual de Londrina, Golono de Deus Angela , Freres Stipp Baptista Carla Maria ,   Universidade Estadual de Londrina, Nunes França Carolina ,   Universidade Estadual de Londrina
Published: August 2021

Como resultado de la investigación de campo realizada en el centro de la ciudad de Londrina, en el estado de Paraná, Brasil, se discuten las violencias estructurales y emergentes. En un primer momento, fue identificado un caso de violencia emergente generado por el modelo de desarrollo, asociado al suicidio. En un segundo momento, fueron identificados casos de violencia estructural en el Camelódromo y la presencia de camelós en el área.
Violencia en la urbe. Aporte para la seguridad humana
Authors:   Universidad Autónoma de Zacatecas, González Hernández Guadalupe Margarita
Published: August 2021

El enfoque de la seguridad humana distingue violencias estructurales y emergentes como inherentes al modelo de desarrollo. La ciudad como espacio de construcción social está sujeta a esta dinámica. La mecánica estructural es creadora de violencias al tiempo que reproduce las asociadas al modelo de desarrollo neoliberal que intensifican y profundizan las desigualdades sociales y espaciales de las ciudades mexicanas. Aquí se presentan algunos elementos de análisis que pudieran contribuir al debate y su conceptualización en el marco de los estudios urbanos.
Videovigilancia en el Centro Histórico de la Ciudad de México
Authors:   Universidad Autónoma Metropolitana Azcapotzalco, Micheli Jordy , Islas Laura ,   Universidad Autónoma Metropolitana Azcapotzalco
Published: August 2021

La videovigilancia en la Ciudad de México constituye una de las infraestructuras urbanas importantes que se han construido en los inicios del siglo XXI, en paralelo con una tendencia histórica en la urbanización global. Nace de un proyecto de reorganización del Centro Histórico bajo condiciones de acumulación privada de un actor principal tanto inmobiliario como tecnológico, y se ha extendido al conjunto de la ciudad, dándole un sello actual de modelo de seguridad basada en vigilancia electrónica.
Simulation of microstrip radio altimeter antenna for aircraft
Authors: Gusinski A. V. , Svirid M. S. , Kondrashov D. A. , Kopshai A. A. , Bulavko D. G. , Lisov D. A.
Published: August 2021

The purpose of the article is to carry out mathematical modeling of the main characteristics and parameters of a microstrip antenna, the dielectric substrate of which is created from a domestic ceramic sample and to substantiate the use of a microstrip antenna as a transmitting and receiving antenna in a radio altimeter. It is shown that a microstrip antenna on a ceramic material substrate with a relative permittivity ε = 9.6 and a thickness of 0.2 mm has good electrical parameters in the frequency range of 31.5–33.5 GHz. Including the width of the antenna radiation pattern at the level of –3 dB is 12.5 degrees in the horizontal plane and 26.7 degrees in the vertical plane. In this case, the antenna gain is 17 dB and the level of the first side lobe is –20 dB relative to the main antenna lobe. Also the practical application of microstrip array antennas inphase as a transmitting and receiving antenna for a radio altimeter installed on aircraft is described in the article. The range of the altimeter reaches 300 m.
Relatively Good News Amid Covid-19
Authors: Longhurst Jesse Moon , Thier Michael
Published: August 2021

This study examined publicly available data from The Institution of Education Sciences (IES) survey of school leaders concerning modes of instructions offered and subgroups prioritized during the Covid-19 pandemic. We asked: Do national data regarding instructional modes (i.e., remote, hybrid, and in-person) during the Covid-19 pandemic reveal different approaches of U.S. elementary and secondary schools in rural areas versus peer institutions in cities, suburbs, and towns? Our analysis showed that schools in rural areas are more readily and equitably offering in-person instruction than schools in suburbs and cities, particularly in regard to students of color. Additionally, we found that rural school leaders report prioritizing English learners, students with identified disabilities, students experiencing homelessness and students without home internet access at higher rates that their peers in urban and suburban schools.
What We Know and Where To Go: A Systematic Review of the Rural Student College and Career Readiness Literature and Future Directions for the Field
Authors: Roberts J. Kessa , Grant Phillip
Published: August 2021

College and career readiness has become a national education policy priority. With more than 9.3 million rural students in the United States, the college and career readiness of rural students is a warranted priority for rural education researchers. Using a combination of Conley’s (2012) college and career readiness model, Perna’s (2006) nested model of college choice, and Social Cognitive Career Theory (Lent et al., 2014), we systematically reviewed and analyzed the extant literature on rural students’ college and career readiness. In addition to providing a comprehensive discussion of the prominent themes in the literature, we provide recommendations for future research on rural students’ college and career readiness as well as changes to college and career readiness standards and practices that would better align with the strengths and needs of rural students, schools, and communities.
Floral design GaN crystals: low-resistive and low-dislocation-density growth by oxide vapor phase epitaxy
Authors: Takino Junichi , Sumi Tomoaki , Okayama Yoshio , Kitamoto Akira , Usami Shigeyoshi , Imanishi Masayuki , Yoshimura Masashi , Mori Yusuke
Published: August 2021

GaN crystal growth mode in the oxide vapor phase epitaxy (OVPE) method, which simultaneously provides low electrical resistance and low threading dislocation density (TDD), has been investigated in detail. The results clarified that these qualities can be achieved by the expression of numerous inverted pyramidal pits, called three-dimensional (3D) growth mode. This mode reduced TDD from 3.8 × 106 cm−2 to 2.0 × 104 cm−2 for 1 mm thick growth because the threading dislocations (TDs) converged to the center of each pit. Moreover, when the crystal surface after polishing was observed by photoluminescence measurement, peculiar floral designs reflecting the distribution of oxygen concentration were observed over the entire surface. In addition, the etch pits exhibited TDs in the center of each floral design. On the basis of our results, we proposed that the 3D-OVPE-GaN will serve as a key material for improving the performance of vertical GaN devices.
Vitreous body of the camera-like eyes of terrestrial gastropod mollusks (Heterobranchia, Stylommatophora)
Authors: Shepeleva I. P.
Published: August 2021

Using the methods of light and electron microscopy, the morphological properties were studied, and the evolutionary changes in the vitreous body of the camera-like eyes of some species of terrestrial gastropod pulmonate molluscs were traced. It was demonstrated that all the considered properties of the vitreous body of molluscs are typical for terrestrial pulmonates. In the course of evolution, as a result of the land development by mollusks, the properties of their vitreous body have hardly changed.
THE ELDERLY CARE, ACTIVE AGEING AND GERAGOGY: COULD THEY CO-EXIST IN UKRAINE AND HOW?
Authors: Semigina Tetyana , Karkach Andrii
Published: August 2021

Ukraine belongs to ‘greying’ nations and has one of the worst health profiles in the European region, characterized by high mortality, morbidity, and disability rates. In early 1990s, the country had in-herited the Soviet paternalistic model of social welfare with no professional social workers. Since that time the new services for elderly people have been gradually introduced. Looking through lenses of a number of theoretical concepts (the institutional framework, concept of dependency and geragogy theory) the chapter reviews the key features of the Ukrainian model of elderly care built up in 1990-2020 and the peculiarities of modern social work with elderly people. It reflects the country’s controversial experience of balancing the indigenous social patterns of paternalism, famial-istic informal care, marketization of social services, and professionalization of social work. The case of the municipal social service for elderly persons operating in Poltava region is presented. The spe-cial focus is made on specific interventions implemented in order to encourage older people to use computer and information technology in their daily lives, and to overcome digital inequalities in today's information and network society. The educational activities for elderly people undertaken in this centre within the University of Third Age were evaluated.
Identification and Ranking of Ruminants Disease of Economic Importance in Plateau State, Nigeria
Authors: Usman Rayyanu A.
Published: August 2021

The economic burden of livestock diseases and inadequate veterinary services across the length and breadth of Nigeria reiterates the importance of sustained animal disease surveillance for sustainable prevention and control of diseases. This study was conducted with a view to identify and rank diseases of ruminants that are of economic importance in Plateau State. Basic descriptive analysis was performed, and the result expressed in frequencies and percentages. The result revealed that Foot and mouth disease 25.2% is the most predominant disease that affects cattle in the state. While Peste des petits ruminants 41.54% and tick infestation 34.3% are the diseases that mostly affect sheep and goats, respectively. This study also established that Contagious bovine pleuropneumonia 33.6% and Peste des petits ruminants 43.2% are the major diseases responsible for mortality in cattle and small ruminants, respectively. Most importantly, this study also revealed the practice of self-administration of medications by pastorals in the treatment of their sick animals, as such the need to enlighten farmers on the importance of correct diagnosis, cost-effective treatment regimen and consultation with professionals in the livestock healthcare delivery value chain were discussed..
A Decentralized Economic Load-Balancing Framework among Federated Cloudlets
Authors: Mondal Sourav , Das Goutam
Published: August 2021

Edge computing servers like cloudlets from different service providers compensate scarce computational and storage resources of mobile devices, are distributed across access networks. However, the dynamically varying computational requirements of associated mobile devices make cloudlets either overloaded or under-loaded. Hence, load balancing among neighboring cloudlets appears to be an essential research problem. Especially, the load balancing problem among federated cloudlets from the same as well as different service providers for low-latency applications needs significant attention. Thus, in this paper, we propose a decentralized load balancing framework among federated cloudlets for low-latency applications that focuses on latency bound rather than latency minimization. In this framework, we employ dynamic processor slicing for handling heterogeneous classes of job requests. We propose a continuous-action reinforcement learning automata-based algorithm that enables cloudlets to independently compute the load balancing strategies in a completely distributed network setting without any exhaustive control message exchange. To capture the economic interaction among federated cloudlets, we model this load balancing problem as an economic and non-cooperative game and by scaffolding the properties of the game formulation, we achieve faster convergence of the reinforcement learning automata. Furthermore, through extensive simulations, we study the impacts of exploration and exploitation on learning accuracy.
Spatial Domain Suppression of Co-Channel Interference: A Reflection Amplifiers Surface (RAS) Approach
Authors: Du Linsong , Ma Jianhui , Fan Chao , Liang Qingpeng , Li Chenxing , Tang Youxi
Published: August 2021

This paper adopts a novel reflection amplifiers surface (RAS) to suppress the co-channel interference in the spatial domain. The RAS can reflect and amplify the electromagnetic wave with phase shifts by designing the reflection coefficients, which enables it more flexibly reconfigure the wireless propagation environment, and even suppress interference channel gain. In this paper, a transmitter and an interferer send the desired signal and interference to the receiver, respectively, and a RAS is placed to suppress the unknown interference. First, we design the reflection coefficients for optimizing the interference suppression ratio, and prove that when the number of reflection amplifiers is greater than the number of antennas at the interferer, the interference can be perfectly suppressed. Next, a capacity maximization problem is formulated to design the optimal reflection coefficients, and an iterative algorithm based on fractional programming and the convex-concave procedure is proposed to obtain the solution for this problem. Moreover, the closed-form expression of the maximal capacity is obtained in the strong interference power case. In addition, this paper shows the upper and lower boundaries of the maximal capacity and discusses what kind of the channel conditions achieve the upper and lower boundaries. Lastly, the above results are generalized to the multiple interferer scenario.