bluuebunny/crossref_metadata_2025 huggingface dataset:
Irisin administration restores beta-cell functional mass in a mouse model of type 2 diabetes
Authors: Borrelli Anna , Marrano Nicola , Biondi Giuseppina , Rella Martina , Roberto Luca , Cignarelli Angelo , Perrini Sebastio , Laviola Luigi , Giorgino Francesco , Natalicchio Annalisa
Published: June 2023

Aim: Irisin is a hormone secreted by skeletal muscle able to improve metabolic homeostasis. Serum irisin levels are reduced in type 2 diabetes (T2D), while exogenous irisin administration improves glycemic control in diabetic mice. We have previously demonstrated that irisin promotes beta-cell survival and function both in vitro and in vivo in healthy wild type mice. We have also demonstrated that irisin restores the defective glucose-stimulated insulin secretion (GSIS) and reduces apoptosis in human pancreatic islets from patients with T2D. Nevertheless, the beta-cellular effects of in vivo irisin administration to T2D mice are still unknown. Methods: C57Bl/6 mice (n = 8) were fed a high-fat diet (HFD, 60% of energy deriving from fat) for 10 weeks and then intraperitoneally injected with streptozotocin (STZ, 100 mg/kg) to induce diabetes. Four standard diet (SD)-fed mice were used as control. HFD/STZ mice were treated with 0.5 μg/g irisin (n = 4) or vehicle (n = 4), for 14 days. Fasting glycemia, insulinemia, body weight, glucose tolerance, and pancreatic islet function were assessed. Pancreatic islet architecture was also evaluated through immunofluorescence analyses. Results: Compared to SD mice, HFD/STZ mice showed higher fasting glycemia and body weight, glucose intolerance, and reduced GSIS; in addition, HFD/STZ mice showed reduced islet volume (-78%), beta-cell area (-35%), and insulin content (-60%), and increased alpha-cell area (+54%). Irisin administration significantly restored glycemia (-31%), body weight (-13%), glucose tolerance (-27%), GSIS (+23%), islet volume (+61%), beta-cell area (+34%) and alpha-cell area (-49%), and insulin content (+36%). Of note, irisin induced a 9-fold increase in beta-cell proliferation rate. Conclusions: These results show that irisin improves glycemic homeostasis and restores the functional beta-cell mass when administered in vivo to diabetic mice, probably by promoting beta-cell proliferation.
Triagem toxicológica de extratos de Lippia microphylla frente à Artemia salina
Authors: Araújo Gabrielle Guimarães , Flor Nicole Silva , Silva Alice Joana Souza Vieira da , Silva Joelmir Lucena Veiga da , Oliveira Tharcia Kiara Beserra de
Published: June 2023

Objetivo: verificar a toxicidade aguda de extrato etanólico bruto das partes aéreas desta espécie vegetal frente a Artemia salina. Métodos: O extrato das partes aéreas da Lippia microphylla, nas concentrações de 1,0, 10,0, 100,0 e 1000,0 μg/mL, foi utilizado nos ensaios de toxicidade aguda utilizando o microcrustáceo Artemia salina (n = 10), incubados por um período de 24 e 48 horas, realizados em triplicata. O número de náuplios mortos foram quantificados e a CL50 foram calculadas por regressão não-linear. Resultados: O extrato da Lippia microphylla durante incubação por 24hs promoveu toxicidade (p < 0,05) apenas na maior concentração do extrato (1000 μg/mL). Já na exposição por 48h, mostrou CL50 de 246,7 ± 27,85 μg/mL, apresentando toxicidade moderada. Conclusão: As folhas de Lippia microphylla possuem princípios ativos, os quais, provavelmente, não conseguem ser totalmente eliminados pelo metabolismo da A. salina durante 48hs, causando-lhes toxicidade moderada.
İMAM ZEYLAÎ’NİN NESEFÎ METNİNDEKİ NİKÂH BÖLÜMÜNÜN HÜKÜMLERİNİ TEMELLENDİRMESİNİN FIKHİ TAHLİLİ
Authors: Tok Ramazan , Akdeniz Nurullah
Published: June 2023

İslam hukukunda geniş bir yelpazeye sahip olan nikâh akdi, aile kurumunun temel taşlarının oturtulması için nasıl bir yol izleneceğini belirlemesi ve bu yolda bizlere ışık tutan bilgileri sağlaması açısından önemli bir yere sahiptir. Bu bağlamda âlimler, bu konuda bizlere ışık tutan bilgileri aktarmak için eserler kaleme almışlardır. Bunlar arasında Hanefi mezhebinde, mütûn-i erbaa diye bilinen temel eserler arasında Nesefi’nin Kenzu’l-Dekâik adlı eseri yer almaktadır. Biz de bu makalemizde Zeylaî’nin, Kenzu’l-Dekâik adlı esere yazdığı Tebyînu’l-Hakâik şerhinde nikâh bölümünün hükümlerini temellendirmesinin fıkhî tahlilini yapmaya çalışacağız.
Yazar, nikâh bölümünün hükümlerini açıklarken ayet ve hadislerden deliller sunmakta ayrıca Şafiî, Malikî ve Zâhirî mezheplerine de cevaplar vermektedir. Zeylaî, metot olarak önce kendi mezhebinin görüşlerine yer verir daha sonra varsa gerek mezhep içinde gerek mezhep dışında farklı görüşte bulunan müçtehitlerin görüşlerine ve delillerine de yer verir. En sonda da şerhini yapmış olduğu Kenzü’d-Dekâʾik’te bulunan hükümleri âyet ve hadislerle veya âyet ve hadislere dayanarak akli çıkarımlarla temellendirir. Bu yazımızda nikâh akdi, muharremât, veli, denklik ve kölenin nikâhı konularını ele aldık. İncelediğimiz bu bölümden hareketle Zeylaî'nin bu şerhi yazmaktaki amacının Nesefi metnindeki mevcut mesele ve hükümlere hukuki deliller getirmek olduğunu görmekteyiz. Ancak Zeylaî, yer yer de Nesefî metninde olmayan hükümleri bazen tamamlama niteliğinde ilaveler yapmaktadır. Zeylaî, bu şerhi kaleme alırken yeni içtihatlar yapmamakta, bilakis mezhep içerisinde tercih edilmiş görüşleri, âyet, hadis ve icmâ gibi şer‘i delilleri kullanarak izah etmektedir. Bazen de hükümleri lügat açısından inceleyip diğer mezhep imamlarının görüşlerine cevap verip kendi mezhebi olan Hanefi mezhebinin görüşünün isabetli olduğunu ortaya koymaya çalışmaktadır. Eserin bu özelliklerini dikkate aldığımızda, Zeylaî’nin mezhep içerisinde ki konumunun müçtehit seviyesinde olmadığını, mukallit derecesinde olduğunu söyleyebiliriz.
Seyithan Can, Transhümanizm ve İnancın Geleceği
Authors: Atar Aksoy Aynur
Published: June 2023

Son yıllarda dijitalleşmenin etkisiyle ortaya çıkan kavramlardan biri olan Transhümanizm, insanın biyolojik halden mekânik hale evrilmesini öngören bir tasarım olarak değerlendirilmektedir. Bilim ve teknoloji ile insan hayatının standardı gelişmekte ve her alanda teknolojik materyaller kullanılmaktadır. Ancak batılılaşma döneminde yaşanan gelişmelere tepki gösterilerek meselenin din-bilim çatışması haline getirilmesi gibi bugün de teknolojiden en üst düzeyde faydalanmak yerine dışlayıcı ve reddedici söylemlere başvurulmaktadır. Dolayısıyla transhümanizm bugün reddedilen, şeytan işi bir iş, dinin yerine geçecek yeni bir din, dini ortadan kaldıracak din dışı bir hareket, Tanrı’nın yarattığı insanı değiştirmeyi öngördüğü için Tanrı’ya başkaldırı olarak değerlendirilmektedir.
MANTIKSAL İLLİYET BAĞLAMINDA İBN SÎNÂ’DA HAREKET KAVRAMI VE METAFİZİKSEL UZANTILARI
Authors: Bostan Yasin
Published: June 2023

Hareket kavramı hem fizikte hem metafizikte önemli etkileri olan temel bir kavramdır. Bu makalede İbn Sînâ düşüncesinde Hareket kavramı ve bu kavramın fizik ve metafizikteki bazı uzantıları incelenmiştir. Özellikle Aristotelesçi bir perspektiften bu kavramın fizikten metafiziğe geçiş için köprü konumunda bulunduğu söylenebilir. Doğa felsefesi zemininden başlamak üzere hareket kavramı, aynı zamanda Tanrı-alem ilişkisi, birlik-çokluk, imkân ve değişim gibi bazı temel metafiziksel problemlerin nedensel bir perspektiften anlaşılması için önemli bir kaynağı durumdadır. Bu konunun araştırılması İbn Sînâ düşüncesindeki fizik ve metafizik arasındaki bazı hatların tespit edilmesi için gereklidir. Bu çalışmada fiziksel ve metafiziksel hareket kavramları mantıksal zorunluluğa dayalı illiyet ilişkisi içerisinde felsefi bir analizle incelenmiştir. Bu çerçevede fiziksel bağlamda metafiziksel olarak Tanrı ve hareket kavramları ekseninde tanrısal sonsuzluğun hareketle ilişkisi, hareket ve imkân kavramı arasında söz konusu olabilecek muhtemel metafiziksel ilişki ve bu ilişkiden ortaya çıkan bazı felsefi problemler incelenmiş, sürekli irade, oluş ve bozuluşun nedenselliği ve mutlak hareket konuları ele alınmıştır. Hareket türleri ve çeşitleri özellikle sonlu ve sonsuz hareket, tanrısal akıllar ve göksel hareket, zorunluluk ve hareket kavramları tanrı kavramıyla referansları dikkate alınarak metafiziksel bir analize tabi tutulmuştur. İlgili konularla bağlantılı bazı İbn Sînâ metinleri, mantıksal ve analitik bir anlamlandırma içerisinde dikkate alınmıştır. Sonuç olarak cisimsel olmayan varlıklarda hareket konusuyla birlikte var olma ve hareket ilişkisi, bütün bir varlık açıklaması olan sudur teorisi çatısı altında İbn Sînâ’nın tanrı anlayışı ekseninde felsefi bir perspektifle değerlendirilmiştir.
Rock-Eval Pyrolysis and Petrographic Characteristics of Coals of Chintalapudi Sub-Basin, Pranhita-Godavari Basin, Southern India: Implication to Depositional Environment
Authors:   Geology Discipline, School of Sciences, Indira Gandhi National Open University, New Delhi-110068, India, Kiran S. , Gogoi Kakoli
Published: June 2023

The results of the Rock-Eval pyrolysis and petrological investigation carried out on coal samples from the Chintalapudi sub-basin of the Pranhita- Godavari basin have been discussedtoidentify the assessment of the maturity, type, and quantity of organic matter and interpret the depositional environment. Petrographically these coals are enriched in vitrinite (40.0%-60.7%) followed by liptinite (7.3%-26.0%) and inertinite (9.3%-24.0%) macerals.TOC concentrations range from 17.54% to 64.97%. S1 ranges from 0.30% to 1.63% and S2 ranges from 11.70% to 138.06% are considered to be good source rocks. The Tmax values of the Chintalapudi sub-basin coals are found to be between 420°C to 428°C, indicating an immature source rock for the production of oil. The coal samples have an average HI of 157 mg HC/g TOC and VRo of 0.30% placing them in the Type III gas kerogen range. HI, and OI values reveal that the samples of organic matter composition mostly follow the evolutionary route of mixed Type II/III kerogens and are contributed by terrestrial plants which is the main source of the organic matter. The GI (1.67-5.95) and TPI (2.75-47.14)values favour the existence of wet moor with moderate to severe floods with short periods of alternateoxic and anoxic moor environments due to the high concentration of vitrinite that allowed for adequate tissue preservation. Keywords: Kerogen, Rock-Eval Pyrolysis, Petrography, Chintalapudi Sub-basin
Rockmass Characteristics and its Influence on TBM Penetration Rate in Archeans and Meta-sedimentary Rocks of India
Authors:   Dr. M.G.R. Educational and Research Institute, Maduravoyal, Chennai-600095(TN), India, Ramakrishna D. , Rao N. Rajeshwara
Published: June 2023

TBM penetration rate prediction models were developed for the hard Archean granites, granite gneisses and Meta-sedimentary rock groups comprising of quartzites, quartz arenites and sandstone of peninsular India.Construction stage engineering geological mapping comprising of face logging resulted in rockmass characterisation of Archeans and Meta-sedimentary rock groups. Statistical correlation of TBM penetration rate (PR) with Rock quality designation (RQD), unconfined compressive strength (UCS), volumetric joint count (Jv) and rockmass class was carried out. The prediction model provides good correlation only in the Meta sedimentary rock group for RQD, UCS and rockmass class and good correlation only for RQD and rockmass class in the Archean group but poor correlation with UCS. There is an exponential increase of penetration rate with Jv in both the rock groups. Keywords: TBM Penetration Rate, Rockmass Characteristics, Geological Mapping, Rockmass Classification, Rock Tunnel
Delineation of the Groundwater Potential Zone in Kantli River Basin, Jhunjhunu District, Rajasthan: A Geospatial Approach
Authors:   Department of Earth Sciences, Sambalpur University, Sambalpur-768019(OR), India, Chatterjee Tanmoy , Behera Duryadhan , Patra Prasanta Kumar , Goswami Shreerup
Published: June 2023

Remote sensing and GIS are advanced techniques and tools that have been used for various researches including groundwater geology. The Landsat and the IRS satellite datasets have been utilized to extract information on the hydrogeomorphic and groundwater related features of a semi-arid Precambrian hard rock terrain in the Kantli River Basin of Jhunjhunu District, Rajasthan, India. It is the upper part of the Shekhawati River. The study area is covering about 2313.2013 km2 in the Jhunjhunu District, Rajasthan. In the present study, the groundwater potential zone is identified by the GIS overlay techniques using the spatial analyst tool in ArcGIS 10.2. The developed methodology is demonstrated in the Kantli River Basin of Rajasthan, western India. Originally, nine thematic layers, viz. topographic elevation, land slope, geomorphology, geology, soil, pre and post-monsoon groundwater depths, annual net recharge, annual rainfall and proximity to surface water bodies were considered in this study. Therefore, five groundwater potential zones were identified and distinguished in the study area, viz. 'very good', 'good', 'moderate', 'poor' and 'very poor' based on groundwater potential index values, which will enable the local bodies for the future planning and management of the groundwater resource. Severe groundwater contamination has been found occasionally in the study area. Every year during the summer, the region is facing a lot of problems with portable groundwater. As the study area is semi-desert, the influences of salinity have been increasing day by day in the groundwater. Keywords: Groundwater, Remote Sensing, Kantli River, Satellite Images, GIS, Potential zone
Local Branding: Imperative Strategy Towards Competitiveness of Sustainable Destinations Through the Role of Social Media
Authors: Kuswardani DC. , Nurhidayati Nurhidayati , Wibisono Totok , Santoso Aprih
Published: June 2023

The aim of the research is to form the Competitiveness of Sustainable Destinations to realize tourism marketing through Local Branding. The variables tested are Local Branding and Destination Image. Social Media is expected to moderate the influence of Local Branding on the Competitiveness of Sustainable Destinations. The population is visitors to tourist attractions, while the sample is 152. Respondents are determined using the Proportionate Stratified Random Sampling technique. SEM as an analysis tool with the smartPLS.3.0 program application The results of the Sustainable Destination Competitiveness test results can be manifested through optimal management of Local Branding and Destination Image. Local Branding can be applied through Local Culture and Destination Image. Local Branding significantly affects the Competitiveness of Sustainable Destinations, while Local Culture significantly influences Local Branding. Destination Image significantly influences Local Branding and significantly influences the Competitiveness of Sustainable Destinations. Social Media is able to function as a pure moderator of the influence of Local Branding on the Competitiveness of Sustainable Tourism Destinations in Semarang City. The R - Square value in the Local Branding construct is 0.758536, meaning that Local Branding is influenced by Local Culture and Destination Image 75.85%. The Q Square value > 0 (0.575377) on the Local Branding variable indicates that the model has strong predictive relevance, meaning that the research model has relevance in predicting Local Culture and Destination Image with Local Branding in Tourism Objects. R-Square on the construct of Sustainable Destination Competitiveness 0.817528 means that the Competitiveness of Sustainable Destinations is influenced by Local Branding and Destination Image 81.75%. The Q Square value of 0.668352 (> 0) indicates that the model has strong predictive relevance, meaning that the research model has relevance in predicting Local Branding and Destination Image on the Competitiveness of Sustainable Tourism Destinations.
Actualización en Ginecología Vol. 1
Authors: Briones Nieto Norma Stephanie , Neira Vera Mayra Alejandra , Salazar Domínguez Denisse Carolina , Díaz Barreiro Ivanna Alejandra , Salcedo Neira Erick Xavier , Zambrano Ruano Gabriela Stefania
Published: June 2023

"Actualización en Ginecología Vol. 1" es un recurso vital para ginecólogos, médicos de atención primaria, residentes en formación y estudiantes de medicina. Este libro se compromete a proporcionar a los profesionales de la salud una revisión exhaustiva y actualizada de las últimas tendencias, investigaciones y avances en ginecología.
Robson Classification in a Private Hospital in the City of Oaxaca de Juarez, Oaxaca, Mexico during 2019-2021
Authors: Cuevas-Martínez Adriana , Martínez-Martínez Modesto César , García-Montalvo Iván Antonio
Published: June 2023

The cesarean section is a surgical procedure to remove the fetus; there are several indications that merit this surgical process, which involves a risk to the mother and the fetus; a constant concern is that in many private and public hospitals the percentage of cesarean sections suggested by the WHO is far exceeded. For our study population, 81% of pregnant women attending the care underwent a cesarean section, which exceeds the allowed value. It is necessary to evaluate the determinants of this decisión-making process. The Robson classification suggested by the WHO at the beginning of 2015 classifies each cesarean section into distinct groups that allow the quality of maternal and infant care to be evaluated. From the universe of 107 cases, a simple random sampling was performed with a confidence percentage of 95% and an error of 0.05%, resulting in 84 cases. The average age of the patients was 28 years, 78% had no associated comorbidities and the average age of sexual activity was 20 years, with a predominance of those who had had at least two sexual partners. The group of pregnancies has a predominant two previous pregnancies, most of them attended delivery and 53% are primigravidae; In previous cesarean sections, excluding primigravidae, 50% have had at least one previous cesarean section, although intergestational periods predominate (67% older than 3 years). Of the total number of cases, 81% are classified as elective cesarean section; 100% have an APGAR greater than 7 and a SILVERMAN less than 3. The groups that contribute to the Robson scale are patients with a single pregnancy, cephalic presentation with more than 37 weeks of gestation, and a previous cesarean section, followed by the group with two previous cesarean sections (14%).
PİYASALARIN GENİŞLEME TRENDİ İÇİNE GİRDİĞİ DÖNEMLERDE ENERJİ SEKTÖRÜNDE UYGULANAN YATIRIM STRATEJİLERİNİN FİRMA PERFORMANSINA ETKİSİ
Authors: YENİLMEZ Bahan
Published: June 2023

Bu çalışmada, Borsa İstanbul’da yer alan ve enerji sektöründe faaliyet gösteren firmaların uyguladıkları küçülme stratejilerinin ve ana faaliyetle ve çeşitlendirme ile ilgili olan yatırım stratejilerinin firma performansı üzerindeki etkileri incelenmiştir. Bu kapsamda, 2000 ile 2021 yılları arasında Borsa İstanbul 100 endeksinde yer alan enerji sektöründeki şirketlerin piyasaların genişleme trendi içine girmiş oldukları dönemlerinde uyguladıkları küçülme ve yatırım stratejileri belirlenerek ve bu stratejilerin firma performansıyla aralarında anlamlı bir ilişkinin bulunup bulunmadığının belirlenmesi amacıyla analizler yapılarak ve firma performansı üzerinde en fazla performansa sahip olan stratejiler değerlendirilmiştir. Bu çalışmanın diğer çalışmalardan farklı olan yönü henüz Türkiye’de söz konusu stratejilerin üçünün de genişleme dönemleri için bir arada değerlendirildiği ve karşılaştırıldığı çalışma sayısının oldukça sınırlı olmasından kaynaklanmaktadır. Çalışmada, firma performansının ölçülmesinde, borsa kapanış fiyatı, varlıklardaki büyüme oranı, Tobin’s Q, ROA, toplam hissedar getirisi, nakit akışlarının getiri oranı, hisse başına kazanç ve kümülatif performans değişkenleri kullanılmıştır. Yapılan bu çalışma dış geçerlilikle sınırlıdır. Gelecek çalışmalar için veri setinin büyütülmesi ve bu sektörde faaliyet gösteren daha fazla firmanın analizin kapsamına alınması daha doğru ve belirgin sonuçların ortaya çıkmasına imkân verecektir.
Agentes bacterianos en casos de otitis canina y su susceptibilidad antibiótica
Authors: Valenzano Ozuna Patricia Raquel , Morínigo Servín Marcelo Marcial , Gonzalez Castro Adriana Ysabel , Nuñez Marta Lara
Published: June 2023

En una clínica veterinaria ubicada en la ciudad de Fernando de la Mora en el año 2020, fueron examinados 48 caninos que presentaron uno o más signos clínicos de otitis, sin distinción de sexo ni raza, con el objetivo de determinar la frecuencia de bacterias aisladas en otitis, su sensibilidad y resistencia a los antimicrobianos en pacientes caninos. Se extrajeron las muestras por medio de hisopados óticos para realizar el cultivo, aislamiento, identificación y posterior antibiograma. Los resultados obtenidos fueron los siguientes: 38 muestras, presentaron crecimiento bacteriano correspondio al 78%. En 19 (45%) muestras se aisló al Staphylococcus spp, en 11 (26%) muestras Pseudomona spp, 5 (12%) muestras presentaron Streptococcus spp, 4 (10%) correspondieron a Proteus spp, 2 (5%) Escherichia coli y de 1(2%) se aisló Citrobacter koseri. Los resultados del antibiograma indicaron, el Staphylococcus spp resultó sensible a: enrofloxacina en el (100%), clindamicina (94,7%), cefalexina (94,4%), oxacilina (89,4%), eritromicina (76,4%). La Pseudomona spp. sensible a: gentamicina (en el 81,8%), ciprofloxacina (81,2%). El Streptococcus spp sensible a: ampicilina (100%), penicilina (100%), eritromicina (100%), cloranfenicol (100%), cefpodoxima (100%), enrofloxacina (100%). Por último, se halló al Staphylococcus spp resistente a penicilina (100%), la Pseudomona spp.  resistente a cotrimoxazol en el (100%) y el Streptococcus spp no presentó ninguna resistencia.
Scalable Learning of Probabilistic Circuits
Authors: Geh Renato Lui , Mauá Denis Deratani
Published: June 2023

Probabilistic circuits (PCs) are a family of tractable probabilistic models capable of answering a wide range of queries exactly and in polytime. While inference is usually straightforward, learning PCs that both obey the needed restrictions for inference tractability and exploit their expressive power has proven to be a challenge. This dissertation aims to propose fast and scalable structure learning algorithms for PCs from two different standpoints: from a logical point of view, we efficiently construct a PC that takes certain knowledge in the form of logical constraints and scalably translate them into a probabilistic circuit; from the viewpoint of data guided structure search, we propose hierarchically building PCs from random hyperplanes. We empirically show that either approach is competitive against state-of-the-art methods of the same class in both performance and scalability.
Connected and Disconnected Matchings
Authors: Masquio Bruno P. , Pinto Paulo E. D. , Szwarcfiter Jayme L.
Published: June 2023

Matching problems in graphs have been studied for a long time, achieving important results in both theoretical and practical aspects. Over the decades, many variations of matching problems and results were studied. Some of them can be solved in polynomial time, while others apparently cannot, unless P = NP. In this thesis, we briefly present the history of matching problems and their complexities, along with a survey of some of their variations, and their state-of-the-art. We also give new results on one of these variations: P-matchings. A matching M is a P-matching if the subgraph induced by the endpoints of the edges of M satisfies property P . As examples, for appropriate choices of P , the problems INDUCED MATCHING, UNIQUELY RESTRICTED MATCHING, ACYCLIC MATCHING, CONNECTED MATCHING and DISCONNECTED MATCHING arise. In this thesis, we focus our study on three: DISCONNECTED MATCHING, CONNECTED MATCHING and its weighted version, WEIGHTED CONNECTED MATCHING. To this end, we developed NPcompleteness proofs, classical and parameterized complexity analysis, as well as exact polynomial algorithms, considering these problems in general and subject to some constraints.
On (in)tractability of connection and cut problems
Authors: Melo Alexsander A. de , Figueiredo Celina M. H. de , Souza Uéverton S. , Silva Ana
Published: June 2023

This work addresses connection and cut problems from the viewpoint of graph classes and computational complexity, classic and parameterized. Regarding connection problems, we investigate the so-called TERMINAL CONNECTION problem (TCP), which can be seen as a generalisation of the classical STEINER TREE problem. We propose several complexity results for TCP, when restricted to specific graph classes, and some of its input parameters are fixed. As for cut problems, we analyse the complexity of the classical MAXCUT problem. We introduce the first complexity classification for the problem on interval graphs of bounded interval count. In addition, we prove the NP-completeness of MAXCUT on permutation graphs, settling a question posed by David S. Johnson in the Ongoing Guide to NP-completeness, which has been open since 1985. Finally, we consider the problem of computing the zig-zag number of a directed graph, which is a directed width measure defined over cuts of a graph.
EvaML e EvaSIM: Proposta de Linguagem Baseada em XML e Simulador para o Robô EVA
Authors: Rocha Marcelo Marques da , Muchaluat-Saade Débora Christina
Published: June 2023

Os robôs socialmente assistivos (SARs Socially Assistive Robots) surgem da interseção das classes de robôs assistivos e robôs sociais interativos, que se comunicam com o usuário. O objetivo dos SARs não é apenas fornecer algum tipo de assistência ou se comunicar, mas fornecer estímulos ao usuário por meio da interação com o robô. Este trabalho propõe a linguagem EvaML, uma linguagem específica de domínio baseada em XML para facilitar a especificação de sessões interativas de um SAR chamado EVA. O trabalho apresenta também a proposta de um simulador para o robô EVA, o EvaSIM, capaz de executar suas sessões interativas e auxiliar no desenvolvimento de programas para o robô. É proposta ainda a extensão das funcionalidades do EVA com dois novos componentes para o aprimoramento da capacidade de interação multimodal do robô, oferecendo reconhecimento de expressões faciais dos usuários e integração de efeitos sensoriais de luz. Além disso, este trabalho propõe e avalia um jogo sério para crianças com TEA (Transtorno do Espectro Autista) utilizando o EVA com as novas funcionalidades implementadas.
A live bombou? Avaliando métricas para engajamento em live streaming
Authors: Ferreira Paulo , Gomes Genildo , Conte Tayana , Gadelha Bruno
Published: June 2023

As transmissões ao vivo, ou live Streaming, tornaram-se um meio popular de disseminação de conteúdo, seja para a transmissão de notícias, eventos ou conteúdos relacionados a jogos. Para entender como medir o engajamento em live Streaming é necessário analisar como espectadores utilizam os recursos interativos da plataforma, como curtidas e comentários. Para tanto, realizou-se um estudo de caso em três plataformas de live Streaming a fim de avaliar métricas de engajamento em mídias sociais. Os resultados evidenciam que as métricas avaliadas, embora não sejam específicas para live Streaming, podem ser utilizadas para avaliar o engajamento de seus espectadores. No entanto, é necessário considerar outros indicadores tais como a duração da live e a semântica dos comentários.
Recommending Collaborators Based on Co–Changed Files: A Controlled Experiment
Authors: Constantino Kattiana , Prates Raquel , Figueiredo Eduardo
Published: June 2023

Active collaboration is essential for the success of software projects across the development life-cycle. However, social coding platforms, like GitHub, present challenges in finding potential collaborators with whom they could create new/stronger ties and enhance the quality of contributions. Thus, we conducted a controlled experiment with 35 participants. We asked participants to perform the experiment tasks to find collaborators with similar interests using a prototype recommendation tool and GitHub. We observed that results confirm that recommender based on co–changed files can provide suitable collaborator recommendations to developers of a specific project.
Um Framework de Estratégias de Autorregulação Contextualizado em Programação Introdutória
Authors: Ferreira Deller James , Campos Dirson Santos de , Gonçalves Anderson Cavalcante
Published: June 2023

A aprendizagem autorregulada é definida como o grau em que os alunos são participantes ativos em sua aprendizagem quanto aos aspectos motivacional, comportamental, metacognitivo e cognitivo. Pesquisas recentes mostram, que a maioria dos novatos tem habilidades de autorregulação pobres, que estão associadas a resultados ruins em programação. Deste modo, neste trabalho é aplicado um método exploratório da literatura para contribuir com uma taxonomia de estratégias regulatórias, a fim de apoiar os professores de programação introdutória, na criação de cenários de aprendizagem para promover a autorregulação dos alunos.
Um Relato de Experiência sobre o Ensino de Criptografia e Programação para Crianças e Jovens
Authors: Moreira João Victor , Taqueuti Ana Júlia , Oliveira Júlia , Namba Maria Eduarda , Gomide Janaína , Nogueira Jefferson , Villela Flávia , Santana Laura
Published: June 2023

O objetivo deste artigo é relatar a experiência de minicursos e oficinas de criptografia e programação para crianças e jovens, apresentando desde o seu planejamento até a sua realização. As atividades propostas envolvem conceitos básicos de ambas as áreas visando mostrar como são relacionadas. Foram elaboradas atividades em três formatos: atividades desplugadas, jogos online e projetos de programação em Python. Ao total foram realizadas quatro oficinas e dois minicursos, atingindo 86 alunos entre 6 e 22 anos. De acordo com os relatos de experiência, os alunos demonstraram ter gostado das atividades e muito interessados pelo conteúdo do curso. Alguns pontos de melhorias foram listados para trabalhos futuros.
Projeto LIRE: uma estratégia para levar a robótica educacional às escolas públicas municipais de Brusque
Authors: Pedroso Rogério Santos , Buemo Eliani Aparecida Busnardo
Published: June 2023

Este artigo busca relatar o início da implementação da solução encontrada pela gestão da Prefeitura Municipal de Brusque, Santa Catariana, por meio da Secretaria Municipal de Educação (SEME), para levar a temática do Pensamento Computacional, por meio da robótica educacional ao ambiente escolar da rede municipal de ensino, atendendo do Pré-Escolar até os Anos Finais do Ensino Fundamental. Para isso foi criado o Projeto Laboratório Itinerante de Robótica Educacional (LIRE) que consistiu na montagem de uma infraestrutura material e a formação da Equipe LIRE compostas por diferentes profissionais da educação.
Atuação Profissional dos Egressos do Curso de Telemática
Authors: Costa Ruan M. S. , Albuquerque Danyllo W. , Dantas Filho Emanuel , Valadares Dalton C. G. , Gomes Alexandre B. , Perkusich Mirko
Published: June 2023

Este estudo examina a atuação profissional dos egressos do curso de Telemática do IFPB para compreender os motivos de escolha do curso, competências adquiridas, aperfeiçoamento profissional e desafios enfrentados. Com base nas respostas de 30 participantes, conclui-se que a escolha do curso se deu pela identificação com a área e oportunidades de profissionalização. As habilidades mais importantes adquiridas foram associadas à programação e à resolução de problemas. A maioria dos entrevistados trabalha com desenvolvimento de sistemas e administração de sistemas. O estudo destaca a importância da educação continuada para se manter atualizado e competitivo no mercado. Entre os desafios enfrentados, destacam-se a rápida evolução tecnológica e o acirramento da competição profissional. O estudo permitiu a identificação de pontos fortes e fracos na formação em Telemática, destacando-se a necessidade de melhorias no currículo e no alinhamento com o mercado de trabalho.
Avaliação por Professores do Aplicativo Computação Plugada Binários como Ferramenta para Apoiar o Desenvolvimento do Pensamento Computacional
Authors: Figueiredo Larrysa Mirelly Rosendo , Rebouças Ayla Dantas
Published: June 2023

Esse artigo tem como objetivo apresentar sob o ponto de vista dos professores uma avaliação do aplicativo "Computação Plugada Binários", um aplicativo Android desenvolvido com base em atividades de computação desplugada, para identificar pontos positivos, sugestões de melhoria e entender se o aplicativo pode ajudar no desenvolvimento de quatro habilidades relacionadas ao pensamento computacional. Foram realizadas entrevistas com professores de Ensino Superior que já haviam lecionado sobre o assunto e com um professor do Ensino Médio que participou ativamente de oficinas com o app. Os resultados foram positivos e dão indícios de que ele pode ser adequado como ferramenta de apoio ao desenvolvimento do pensamento computacional.
Building Awareness About Computational Thinking as a Research Field through a Graduate Course for Computer Scientists: a Metacognitive and Self-regulated proposal
Authors: Leite Paula Torales , Guarda Graziela Ferreira , Silveira Ismar Frango
Published: June 2023

The area of Computational Thinking has been grown the last years and became an important research field that relies on the field of Computer Science at the same time that intersects with different areas like Mathematical Reasoning, Problem Solving and Engineering. Despite the impact and relevance of this area, many professionals on Computer Science and related areas are usually not aware of the Computational Thinking topics as part of a new research area. In this sense, this paper discusses a syllabus proposal for a graduate course on Computational Thinking for Computer Scientists that relies over Metacognition and Self-regulated learning.
Legado Digital Pós-Morte no estudo da engenharia de software em disciplinas da Computação
Authors: Trevisan Daniele , Maciel Cristiano , Bim Silvia Amélia
Published: June 2023

Neste texto refletimos sobre o percurso formativo de estudantes da disciplina de Tópicos Especiais em Engenharia de Software de uma universidade pública, a partir de uma proposta pedagógica que contemplou estudos acerca da engenharia de software para web a partir de temas do domínio de legado digital pós-morte. Para tanto, foram coletados dados, por meio de observação participante, análise documental e questionário virtual. No estudo, identificamos que a experiência foi positiva para aquisição de conhecimento sobre engenharia de software proporcionando reflexões sobre a importância dos sistemas computacionais para gerenciamento de legado digital.
Currículo por Competência: Um Relato de Experiência na Reestruturação do Projeto Pedagógico de um Curso de Bacharelado em Engenharia de Software
Authors: Santos Gustavo J. de Souza , Souza Alinne C. Corrêa , Ortoncelli André R. , Beal Franciele , Oliveira Rafael A. P. de , Peratz Tatiane , Silva Rodolfo A.
Published: June 2023

Este artigo relata a experiência do Núcleo Docente Estruturante de um curso de Bacharelado em Engenharia de Software de uma Instituição de Ensino Superior, no processo de construção da nova matriz curricular em uma abordagem por competências. Para o desenvolvimento das competências, foram consideradas as Diretrizes Curriculares Nacionais e atos normativos institucionais. Como contribuições do estudo, destaca-se que a abordagem baseada em competências permitiu: (i) a criação de uma matriz de Unidades Curriculares alinhada com mercado de trabalho; e (ii) a incorporação natural de feedbacks relacionados à absorção de conhecimento e competências por parte dos estudantes. Dessa forma, este estudo pode ser utilizado como guia para que outros cursos adotem abordagens similares ao reformularem suas matrizes curriculares.
Experiência de inclusão de aluno com TEA na equipe de robótica competitiva em nível escolar
Authors: Souza Bruno L.
Published: June 2023

O texto aborda a importância da inclusão de pessoas com TEA na robótica como forma de promover a inclusão social e valorização das capacidades individuais. Durante o processo de inclusão de um jovem autista, foram aprendidas diversas lições sobre a observação das relações em grupo, ações individuais, comunicação clara e objetiva, estabelecimento de metas realistas, boas relações interpessoais, cuidado com o outro e empatia. A aprendizagem em grupo pode ser um instrumento importante para a promoção da inclusão e valorização das capacidades individuais..
Automigos: learning design para ludificação de Autômatos Finitos Determinísticos
Authors: Honda Fabrizio , Pires Fernanda , Pessoa Marcela , Oliveira Elaine H. T.
Published: June 2023

Os conteúdos de computação são considerados complexos e exigem um certo nível de abstração para compreendê-los. Uma das alternativas para facilitar sua compreensão é através dos jogos educacionais, que vêm sendo utilizados para auxiliar na aprendizagem de diversos conteúdos. Dessa forma, o presente trabalho tem o objetivo de ludificar um tema complexo de computação através de uma sequência de passos que resultam em um jogo educacional. O artefato, intitulado Automigos, leva em consideração a teoria de aprendizagem Construtivista, de Jean Piaget, e o Pensamento Computacional, cuja avaliação pelo público-alvo foi positiva, no que se refere a estética, mecânica e diversão do jogo no geral, no entanto, com ressalvas, principalmente quanto à compreensão das regras e conteúdo.
Adotando aulas invertidas e gamificação no ensino de Qualidade de Processos de Software com foco no MPS.BR
Authors: Maia Ariany M. Almeida , Oliveira Lauana Maria C. de , Rodrigues Maria Elanne M. , Viana Windson , Marques Anna Beatriz
Published: June 2023

O uso combinado de metodologias ativas e gamificação tem sido explorado no contexto educacional, por se mostrarem eficazes para a interação e motivação dos estudantes. Torna-se relevante compartilhar experiências com essas metodologias em diversos contextos, identificando seus benefícios e desafios. Este artigo descreve a adoção de Sala de Aula Invertida (SAI) combinada com elementos de gamificação no ensino de Qualidade de Processos de Software com foco no MPS.BR. A experiência envolveu 40 estudantes de graduação em Engenharia de Software e Ciência da Computação da Universidade Federal do Ceará Campus de Russas. O feedback dos estudantes indicou que roteiros de estudo gamificados, o sistema de troca de pontos e quizzes proporcionaram boas experiências. Como pontos negativos, os estudantes indicaram dificuldades no uso da plataforma adotada.
Menschenbeobachtung und Selbstverwaltung
Authors: Herrnstadt Martin H.
Published: June 2023

Eine Wissensgeschichte des autoritären Liberalismus um 1800 und der Formierung seines administrativen, ökonomischen und moralischen Subjekts. Joseph-Marie de Gérando (1772-1842) ist ein schillernder und kaum erforschter Akteur des Staatsumbaus am Ende der 1. Französischen Republik. Sein rasanter akademischer und administrativ-politischer Aufstieg zwischen 1797 und 1813 ermöglicht Einblicke in eine Geschichte der aufklärerischen Menschenwissenschaft, die deren Kontinuität mit dem autoritären Liberalismus des napoleonischen Kaiserreichs ebenso herausarbeitet wie ihre Funktion bei der Herausbildung neuer Wissensfelder zu Beginn des 19. Jahrhunderts, wie der Verwaltungs- und Wohlfahrtswissenschaft. Mittelpunkt dieser Geschichte ist die Figur des Selbst und die Praxis des Selbst-Wissens, die Gérando gegen das politische Subjekt der Revolution, den Citoyen, in Stellung brachte. Ausgestattet mit den Instrumentarien der Mikrogeschichte und der Historischen Epistemologie liefert Martin Herrnstadt eine integrierte Analyse von philosophischer Begriffsarbeit, staatlicher sowie ökonomischer Wissensproduktion und administrativer Praxis, die neue Perspektiven auf die epistemologischen wie politischen Dimensionen der nachrevolutionärer Gesellschaftstransformation um 1800 eröffnet.
Anthropologien des Sakralen
Authors: Keller Thomas
Published: June 2023

In dem durch politische Extreme geprägten Jahrzehnt von 1937 bis 1947 suchen nonkonformistische Kreise in Frankreich nach Alternativen zur Entscheidung zwischen Liberalismus und Barbarei. Konzepte von innerer Erfahrung und Gemeinschaft bilden dabei Bezugspunkte zwischen den politisch wie weltanschaulich sehr unterschiedlichen Gruppen, die nicht zuletzt weit auseinandergehende Ansichten hinsichtlich der Fortdauer des Sakralen in modernen Gesellschaften haben. Das Buch von Thomas Keller stellt erstmals in deutscher Sprache die komplexe Geschichte des französischen Nonkonformismus vor und rekonstruiert die Gemengelage nach dem Scheitern der Volksfront, während der deutschen Besatzung und vor dem Beginn des Wirtschaftswunders. Die verschiedenen Gruppierungen verfolgen dabei sehr unterschiedliche Visionen. Das Collège socratique um Georges Bataille übersetzt etwa Elemente der christlichen Mystik in den Alltag und zielt auf intensive Erfahrungen des Außersichseins. Der ökumenische Moré-Kreis hingegen, der personalistische Impulse weiterführt, ist von der Identifikation mit dem leidenden Opfer Christi angetrieben. Die Leute der Gascogne, insbesondere Bernard Charbonneau und Jacques Ellul, warnen umgekehrt vor den Sakralisierungen von Staat und Technik. Die Ökologen der ersten Stunde werden von der Frage umgetrieben, ob die anthropologische Ausstattung überhaupt eine rettende Wende zulässt. Und schließlich entwickelt Henry Corbin, einer der Hauptakteure der Eranos-Tagungen, eine differentielle und responsive Anthropologie, die Bilderwelten des Sufismus mit neueren Theorien der Affektivität verbindet. Thomas Keller entwirrt die verschlungenen Positionen dieser Gruppierungen und legt so eine vergessene, grenzüberschreitende Spur der philosophischen Anthropologie frei.
Ionospheric Scintillation Models: An Inter-Comparison Study Using GNSS Data
Authors: Camps Adriano , Molina Carlos , González-Casado Guillermo , Miguel Juan José , Lemorton Joël , Fabbro Vincent , Mainvis Aymeric , Barbosa José , Orús-Pérez Raúl
Published: June 2023

Existing climatological ionosphere models, e.g. GISM, SCIONAV, WBMOD and STIPEE, have known limitations that prevent their wide use. In the framework of ESA study “Radio Climatolo-gy Models of the Ionosphere: Status and Way Forward” their performance was assessed using experimental observations of ionospheric scintillation collected over the past years to evaluate their ability to properly support future missions, and eventually indicate their weaknesses for fu-ture improvements. Model limitations are more important in terms of the intensity scintillation parameter (S4). To improve them, the COSMIC model has been fit (scaling factor and offset) to the measured data, and it became the one better predicting the intensity scintillation in a statistical sense.
Perspective Chapter: Downscaling of Satellite Soil Moisture Estimates
Authors: Rathore Pooja , Prajapati Richa , Roy Debasish , Das Bappa , Chakraborty Debashis
Published: June 2023

Soil moisture is a key parameter in the hydrological cycle and plays a critical role in global climate. The capacity to forecast drought and floods, manage water resources, and make field-scale decisions depends on accurate and thorough information on soil moisture. In addition to the instrument-based field observation approaches, dynamic mapping of soil moisture has been made possible by satellite remote sensing technologies. Estimates of soil moisture at a global and regional scale from optical and thermal remote sensing have been explored, and considerable advancements have been made. However, these global soil moisture products have coarse spatial resolutions and are typically unsuitable for field-level hydrological and agricultural applications. In this regard, this chapter presents a comprehensive review of the latest downscaling methods to improve the coarse-spatial and temporal resolution of soil moisture products. The main approaches discussed in the chapter include active passive fusion, optical/thermal based, topography based, and data assimilation methods. The physical background, current status, advantages and limitations associated with each downscaling approach has been thoroughly examined. Each of these optical/thermal, microwave-based methods for soil moisture estimation involves intricate derivation at different spatiotemporal scales, which can be combined using recent advances in machine learning.
Relational Feminism: Home in the Era of a Pandemic
Authors: Robbertze Gadiël , Swart Charnét
Published: June 2023

Home forms a central part of every individual’s life. Home is meant to be a space of safety, security, peace, and serenity. However, for such a central point in everyday life, the law does not reflect an adequate understanding and interpretation thereof. Home as a space during the COVID-19 pandemic has changed drastically, especially insofar as it relates to domestic violence. It is, therefore, fitting to discover what exactly home means and what home ought to mean in order to protect all legal rights that flow from it adequately.
The Impact of Dysfunctional Families on the Mental Health of Children
Authors: Kganyago Mphaphuli Lucy
Published: June 2023

A healthy and nurturing family environment is necessary for the development of mental health in children. A positive atmosphere within the family, such as open communication, strong interpersonal relationships between parents and children, harmony and cohesion, contributes to a conducive and a safe space for children to develop healthy habits. Children who grow up in dysfunctional families are at risk of developing mental illness, which, if not treated, can result in long-term mental health problems such as depression and anxiety. Children who are exposed to constant conflict, aggression, abuse, neglect, domestic violence and separation because of divorce or parents who work long hours away from home are likely to present with behavioural and emotional problems. Parents, whether single, married or divorced, have got the responsibility to protect their children’s mental health.
Some Features of Boron Isotopes Separation by Laser-Assisted Retardation of Condensation Method
Authors: A. Lyakhov Konstantin
Published: June 2023

Boron isotopes have many applications in industry: medicine, semiconductor, and solar energy. Especially massive demand is for boron-10 isotopes in nuclear industry for nuclear reactors shielding and control. Various aspects of laser-assisted boron isotope separation by retardation of condensation method, such as irradiation conditions and laser and vacuum system design, have been considered. Irradiation conditions include interaction scheme of laser radiation and supersonic beam, dependence of efficiency of excitation on gas flow temperature and pressure. Basic physical constraints on laser intensity and its spectral properties have been discussed. The relation of gas flow properties, nozzle design, and vacuuming rate has been elucidated as well.
Enabling Neuromorphic Computing for Artificial Intelligence with Hardware-Software Co-Design
Authors: Li Bojing , Zhong Duo , Chen Xiang , Liu Chenchen
Published: June 2023

In the last decade, neuromorphic computing was rebirthed with the emergence of novel nano-devices and hardware-software co-design approaches. With the fast advancement in algorithms for today’s artificial intelligence (AI) applications, deep neural networks (DNNs) have become the mainstream technology. It has been a new research trend to enable neuromorphic designs for DNNs computing with high computing efficiency in speed and energy. In this chapter, we will summarize the recent advances in neuromorphic computing hardware and system designs with non-volatile resistive access memory (ReRAM) devices. More specifically, we will discuss the ReRAM-based neuromorphic computing hardware and system implementations, hardware-software co-design approaches for quantized and sparse DNNs, and architecture designs.