bluuebunny/crossref_metadata_2025 huggingface dataset:
N-S Asymmetry and Solar Cycle Distribution of Superactive Regions from 1976 to 2017
Authors: Zhao Ming-Xian , Le Gui-Ming , Liu Yong-Hua
Published: November 2022

There were 51 superactive regions (SARs) during solar cycles (SCs) 21–24. We divided the SARs into SARs1, which produced extreme space weather events including ≥X5.0 flares, ground level events (GLEs), and super geomagnetic storms (SGSs, Dst < −250 nT), and SARs2, which did not produce extreme space weather events. The total number of SARs1 and SARs2 are 31 and 20, respectively. The statistical results showed that 35.5%, 64.5%, and 77.4% of the SARs1 appeared in the ascending phase, descending phase, and in the period from two years before to the three years after the solar maximum, respectively, whereas 50%, 50%, and 100% of the SARs2 appeared in the ascending phase, descending phase, and in the period from two years before to the three years after the solar maximum, respectively. The total number of SARs during an SC has a good association with the SC amplitude, implying that an SC with a higher amplitude will have more SARs than that with a lower amplitude. However, the largest flare index of a SAR within an SC has a poor association with the SC amplitude, suggesting that a weak cycle may have a SAR that may produce a series of very strong solar flares. The analysis of the north–south asymmetry of the SARs showed that SARs1 dominated in the southern hemisphere of the sun during SCs 21–24. The SAR2 dominated in the different hemispheres by turns for different SCs. The solar flare activities caused by the SARs with source locations in the southern hemisphere of the sun were much stronger than those caused by the SARs with source locations in the northern hemisphere of the sun during SCs 21–24.
Epidemiology and Clinical Manifestation of West Nile Virus Infections of Equines in Hungary, 2007–2020
Authors: Fehér Orsolya Eszter , Fehérvári Péter , Tolnai Csenge Hanna , Forgách Petra , Malik Péter , Jerzsele Ákos , Wagenhoffer Zsombor , Szenci Otto , Korbacska-Kutasi Orsolya
Published: November 2022

West Nile virus (WNV) is an emerging pathogen in Hungary, causing severe outbreaks in equines and humans since 2007. The aim of our study was to provide a comprehensive report on the clinical signs of West Nile neuroinvasive disease (WNND) in horses in Hungary. Clinical details of 124 confirmed equine WNND cases were collected between 2007 and 2019. Data about the seasonal and geographical presentation, demographic data, clinical signs, treatment protocols, and disease progression were evaluated. Starting from an initial case originating from the area of possible virus introduction by migratory birds, the whole country became endemic with WNV over the subsequent 12 years. The transmission season did not expand significantly during the data collection period, but vaccination protocols should be always reviewed according to the recent observations. There was not any considerable relationship between the occurrence of WNND and age, breed, or gender. Ataxia was by far the most common neurologic sign related to the disease, but weakness, behavioral changes, and muscle fasciculation appeared frequently. Apart from recumbency combined with inappetence, no other clinical sign or treatment regime correlated with survival. The survival rate showed a moderate increase throughout the years, possibly due to the increased awareness of practitioners.
Portal Vein and Mesenteric Artery Thrombosis Following the Administration of an Ad26.COV2-S Vaccine—First Case from Romania: A Case Report
Authors: Savulescu Florin , Cirlan Cristian , Iordache-Petrescu Madalina Ionela , Iordache Mihai , Petrescu Alexandra Bianca , Blajut Cristian
Published: November 2022

COVID-19 has significantly affected public health, social life, and economies worldwide. The only effective way to combat the pandemic is through vaccines. Although the vaccines have been in use for some time, safety concerns have still been raised. The most typical adverse effects of receiving a COVID-19 vaccine are localized reactions near the injection site, followed by general physical symptoms such as headaches, fatigue, muscle pain, and fever. Additionally, some people may experience VITT (vaccine-induced immune thrombotic thrombocytopenia), a rare side effect after vaccination. We present the case of a 60-year-old female patient that developed VITT-like symptoms with spleno-portal thrombosis and intestinal ischemia two weeks after the administration of the Ad26.COV2-S vaccine. Surgical treatment consisted of extensive bowel resection with end jejunostomy and feeding ileostomy. Two weeks after the first operation, a duodenal-ileal anastomosis was performed. The patient was discharged five weeks after the onset of the symptoms. Although some rare adverse effects are associated with the SARS-CoV-2 vaccines, the risk of hospitalization from these harmful effects is lower than the risk of hospitalization from COVID-19. Therefore, recognizing VITT is significant for ensuring the early treatment of clots and proper follow-up.
Protecting the Offspring, the Gift of Maternal Immunization: Current Status and Future Perspectives
Authors: Lagousi Theano , Gkentzi Despoina , Geropeppa Maria , Tsagkli Panagiota , Spoulou Vana
Published: November 2022

Pregnancy is characterized by immunological alterations in pregnant women that permit the growth of a semi-allogenic fetus, resulting in greater susceptibility of childbearing women to infections. Furthermore, due to the immaturity of the immune system of neonates, a protection gap is present in early life, leaving neonates and infants vulnerable to infectious diseases with increased morbidity and mortality. Maternal immunization against influenza, pertussis, and, in the context of the COVID-19 pandemic, SARS-CoV-2 has been implemented in several countries, with beneficial effects on both the mother and the offspring. The main protective mechanism of vaccination during pregnancy is transplacental transfer of maternal antibodies. However, recent evidence has implied that the fetal immune system may be influenced beyond passive immunity. This review sheds light on the current status of the routinely administered vaccinations during pregnancy, focusing on the impact of maternal immunization on the priming of the fetal immune system and suggesting future perspectives for the optimization of vaccination strategies.
Virome Profiling of an Amur leopard cat Reveals Multiple Anelloviruses and a Bocaparvovirus
Authors: Liu Yang , Sun Lanshun , Tu Zhongzhong , Sun Sheng , Sun Yue , Yi Le , Tu Changchun , He Biao
Published: November 2022

As a small top predator, Amur leopard cat (Prionailurus bengalensis euptilurus) is widely distributed in northeast Asia and plays an important role in the control of small rodent populations and in the maintenance of ecological equilibrium. However, the viruses harbored by this creature have been rarely investigated. Here, we report the DNA and RNA eukaryotic virome profiling of an injured Amur leopard cat followed by PCR validation, which revealed diverse anelloviruses in multiple organs and a bocaparvovirus in the lymph, but no RNA viruses. These anelloviruses have diverse genomic structures and are classified into four phylogroups with viruses of various felines, while the bocaparvovirus is extremely similar to those recovered from diarrheal domestic cats, illustrating the transmission of the virus between domestic animals and wildlife. These data provide the first insight into the genetic diversity of Amur leopard cat viruses, highlighting the need for further investigation of wild animals.
The Potential of Digitalization to Promote a Circular Economy in the Water Sector
Authors: Hernández-Chover Vicent , Castellet-Viciano Lledó , Bellver-Domingo Águeda , Hernández-Sancho Francesc
Published: November 2022

The current amount of data coming from all kinds of devices together with the incessant increase in computing capacity is revolutionizing almost all existing sectors, and the water sector is no exception. The monitoring of urban water cycle infrastructures makes it possible to generate a large amount of data, this information, previously processed, helps to increase the efficiency of the processes carried out in these infrastructures, from catchment to purification and subsequent discharge. This information, in addition to improving internal aspects such as the operation and maintenance of the infrastructures, allows them to be linked to multiple other variables in other sectors, making new technological approaches and more effective management strategies possible. A practical example is wastewater treatment plants. From the perspective of the circular economy, these infrastructures are capable of producing a large amount of resources, which, if properly managed, can reduce the pressure on conventional resources. In this sense, digitization allows the integration of the different market players, thus optimizing the supply and demand of these resources and ultimately advancing the practical application of the circular economy. This paper reviews the potential of digitalization in the urban water sector and proposes numerous practical examples to accelerate the transition towards economic, social, and environmental sustainability.
Topological Analysis and Application of Urban Drainage Network
Authors: Ren Hancheng , Liu Shu , Li Min , Zhang Hongping , Wang Huiying , Hao Xiaoli , Cui Jie
Published: November 2022

Due to the existence of drainage networks, urban areas have formed their own hydrological mechanism. The pretreatment of complex and elaborate drainage network data has become a challenging step in building an urban hydrological model. This study proposes a network-combing method based on the potential outfall mechanism for an urban drainage system, analyzes the topological structure of the underground network, and generates a subcatchment based on the potential outfall (SBPO). Two hydrological methods are constructed for a typical region in Kunming, Yunnan Province, China. The results show that: The network-combing method of potential outfall mechanisms can well complete the sorting work of a drainage network system and can clarify the relative independent relationship. The SBPO method basically agrees with the SWMM constructed with a high-resolution network in terms of runoff volume, the peak value and the duration of the outflow process at the outfall. However, the subcatchment by the potential outfall mechanism can help to understand the service partition, and the calculation cost is greatly reduced. The method emphasizes the importance of the influence of a drainage system on water confluence, which can help to better understand the process of runoff in urban areas.
Comparison of DNA Extraction Methods for the Direct Quantification of Bacteria from Water Using Quantitative Real-Time PCR
Authors: Hoorzook Kousar Banu , Barnard Tobias George
Published: November 2022

Isolating DNA from bacterial cells concentrated directly from water samples allows the analysis of the DNA with a range of molecular biology techniques. The aim was to develop a cost-effective method to concentrate bacterial cells directly from water for DNA extraction and PCR amplification. A modified in-house guanidinium thiocyanate DNA extraction method was compared to four commercial kits (two repeats performed in triplicate) from 10-fold serially diluted bacterial cells and used to construct standard curves using quantitative real-time PCR (q-PCR). The in-house DNA extraction method-constructed qPCR standard curves showed similar results with determination coefficient (R2) of 0.99 and 0.99 and of slopes −3.48 and −3.65). The R2 and slope for Water MasterTM DNA purification kit (R2 0.34, 0.73; slope −5.73, −4.45); Ultra CleanTM Water DNA isolation kit (R2 0.97, 0.28; slope −3.89, −8.84); AquadienTM kit (R2 0.98, 0.77; slope −3.59, −5.94) and Metagenomic DNA isolation kit (R2 0.65, 0.77; slope −3.83, −4.89) showed higher variability than the in-house DNA extraction method. The results showed that the in-house DNA extraction method is a viable cost-effective alternative with good DNA recovery and repeatable and reproducible results. A limitation of the study is the limited number of repeats, due to cost implication of the commercial kits.
Spatiotemporal Distribution of Nitrous Oxide on the Northeastern Bering Sea Shelf
Authors: Zhang Jiexia , Zhan Liyang , Chen Liqi , Jin Haiyan , Wu Man , Ye Wangwang , Liu Jian
Published: November 2022

Rapid warming and loss of sea ice in the Arctic Ocean could play an important role in the dissolution and emission of greenhouse gas nitrous oxide (N2O). We investigated dissolved N2O in spatiotemporal distribution on the northeastern Bering Sea shelf (NEBS) in the summer of 2012. The results showed that N2O concentrations were higher in the Chirikov Basin (mean ± SD, 14.8 ± 2.4 nmol/L) than in the south of St. Lawrence Island (mean ± SD, 17.7 ± 2.3 nmol/L). In the Chirikov Basin, N2O displayed a decreasing distribution pattern from west (~20.4 nmol/L) to east (~12.9 nmol/L). In the area south of St. Lawrence Island, N2O almost presented a two-layer structure, although it showed a vertically homogeneous distribution in the inner shelf. In the cold bottom water, the N2O was affected mainly by in situ production or sediment emission. Longer resident time may cause N2O accumulation in the cold bottom water. The calculated sea–air flux (−1.6~36.2 μmol/(m2·d)) indicates that the NEBS is an important potential source of atmospheric N2O and could play an important role in global oceanic N2O emission with intensifying global issues.
Deformation Prediction System of Concrete Dam Based on IVM-SCSO-RF
Authors: Zhang Shi , Zheng Dongjian , Liu Yongtao
Published: November 2022

Deformation prediction is an important part of concrete dam safety monitoring. In recent years, the random forest (RF) algorithm has attracted more and more attention in the field of dam safety monitoring because of its fast speed and strong generalization ability. However, the performance of RF is easily affected by many factors, such as the drift of measured value in displacement and the inappropriate setting of parameters of RF. To solve the above problems, the indicator variable model (IVM) is used to identify and eliminate the drift of measured values in this paper, and the sand cat swarm optimization (SCSO) is applied to optimize RF for the first time. On the grounds of this, a deformation prediction system of a concrete dam based on the IVM and RF algorithm optimized by SCSO is proposed. The case study shows that IVM can correct the interference of monitoring data accurately, and the maximum error rate is less than 3%; in the aspect of parameter optimization of RF, the results of the SCSO algorithm are obviously better than those of the TAE method and PSO algorithm, and the corresponding OOB error is the minimum; in terms of prediction performance, compared with TAE-RF, PSO-RF, LSTM and SVM, SCSO-RF has higher accuracy and stronger stability, and its SSE and MSE are reduced by at least 91%, MAE and RMSE are reduced by at least 71%, and R2 is very close to 1. The results of study provide a new method for the automatic online evaluation of dam safety performance.
Surface Water Extent Mapping in Denmark: Comparing Airborne Thermal Imagery and Satellite Earth Observation
Authors: Bauer-Gottwein Peter , Grosen Henrik , Druce Daniel , Tottrup Christian , Johansen Heidi E. , Löwe Roland
Published: November 2022

Mapping and prediction of inundated areas are increasingly important for climate change adaptation and emergency preparedness. Flood forecasting tools and flood risk models have to be compared to observe flooding patterns for training, calibration, validation, and benchmarking. At the regional to continental scales, satellite earth observation (EO) is the established method for surface water extent (SWE) mapping, and several operational global-scale data products are available. However, the spatial resolution of satellite-derived SWE maps remains a limiting factor, especially in low-lying areas with complex hydrography, such as Denmark. We collected thermal imagery using an unmanned airborne system (UAS) for three areas in Denmark shortly after major flooding events. We combined the thermal imagery with an airborne lidar-derived high-resolution digital surface model of the country to retrieve high-resolution (40 cm) SWE maps. The resulting SWE maps were compared with low-resolution SWE maps derived from satellite earth observation and with potential flooded areas derived from the high-resolution digital elevation model. We conclude that UASs have significant potential for SWE mapping at intermediate scales (up to a few square kilometers), can bridge the scale gap between ground observations and satellite EO, and can be used to benchmark and validate SWE mapping products derived from satellite EO as well as models predicting inundation.
Nitrogen, Phosphorus, and Snowmelt Runoff Losses after Application of Dairy Manure with Variable Solids Content
Authors: Young Eric , Wilson Melissa , Sherman Jessica , Vadas Peter , Arriaga Francisco , Feyereisen Gary
Published: November 2022

Snowmelt nutrient loss is an important but poorly understood process in cold climates. We measured nutrient losses at three sites after dairy manure was applied on top of an established snowpack. Treatments included no manure controls and three manure solids levels (12–19.4% solids = High; 7.5–8.0% = Medium; 2.9–5.5% = Low) applied at 26,670 L ha−1 to all treatments. Snowmelt runoff was monitored and analyzed for dissolved reactive P (DRP), total P (TP), total N (TN), ammonium-N, organic-N, and total solids (TS) concentrations. Results showed that manure application dramatically increased N and P loading compared to controls. Across site-years, manure application increased average runoff TP, DRP, and TN concentrations by 1.3- to 13.3-fold, 1.5- to 21-fold, and 1.4- to 14.2-fold, respectively, relative to controls. While cumulative N, P, and TS losses generally increased with manure solids, Medium/Low showed equal or greater nutrient transfer to runoff for some events. TN and TP lost in runoff were linearly related to manure solids concentration; however, N and P loss as a percent of applied showed the opposite trend. The results indicate that applying manure on top of snow resulted in high nutrient losses when runoff occurred regardless of manure solids content.
Effects of Inflow Parameters and Disk Thickness on an Actuator Disk inside the Neutral Atmospheric Boundary Layer
Authors: RahnamayBahambary Khashayar , Fleck Brian A.
Published: November 2022

An accurate choice of the inflow parameters has been shown to affect the CFD results significantly. In this study, the actuator disk method (AD) is used to investigate the effects of the widely used inflow formulations, the logarithmic and power-law formulations, in the neutral atmospheric boundary layer simulations. Based on the one-dimensional momentum theory, the AD model is a rapid method that replaces the turbine with a permeable disk and is among the most used methods in the literature. The results of the k-ω AD simulation indicated that in spite of the logarithmic method’s widespread use, the power law formulation gives a better description of the velocity field. Furthermore, an actuator disk thickness study also showed that given the effect of actuator disk thickness on the rate of convergence, more attention should be dedicated towards finding a suitable disk thickness value. The combination of an optimized mesh and a suitable choice of AD thickness can help with the rate of convergence which in turn shortens the simulation’s run time.
Structure and antibiotic resistance of bacterial pathogens in high-risk departments of healthcare-associated infections during the COVID-19 pandemic
Authors:   The National Research Center for Epidemiology and Microbiology named after Honorary Academician N. F. Gamaleya of the Ministry of Health of the Russian Federation, Moscow, Russia, Zhukova E. V. ,   I.V. Davydovsky City Clinical Hospital, Moscow Healthcare Department, Moscow, Russia, Burova A. A. ,   I.V. Davydovsky City Clinical Hospital, Moscow Healthcare Department, Moscow, Russia, Mirskaya M. A. ,   I.V. Davydovsky City Clinical Hospital, Moscow Healthcare Department, Moscow, Russia, Nikitina G. Y. ,   S.P. Botkin City Clinical Hospital, Moscow Healthcare Department, Moscow, Russia, Semenenko A. V. ,   The National Research Center for Epidemiology and Microbiology named after Honorary Academician N. F. Gamaleya of the Ministry of Health of the Russian Federation, Moscow, Russia
Published: November 2022

The article presents the results of the evaluation of epidemiologically significant bacterial pathogens spectrum representative of healthcare-associated infections (HAIs). Antibiotic resistance was determined in patients with a confirmed diagnosis of severe and extremely severe COVID-19 in comparison with these characteristics in patients of the intensive care unit (ICU) of surgical profile. The predominance of gram-negative bacteria producing extended-spectrum beta-lactamases (ESBLs) +: Enterobacteriaceae and nonfermenting gram-negative bacilli (NFGNB) in patients with COVID-19 and NFGNB in surgical patients was established. Gram-positive coccal microflora in the structure of nosocomial bacterial pathogens was present in a smaller number of cases. Multiple antibiotic resistance of isolated pathogens associated with HAIs was revealed in ICU patients, regardless of the profile, especially manifested in relation to beta-lactam antibiotics. It is shown that the most epidemiologically significant carbapenem-resistant pathogens received priority distribution in the ICU for patients with COVID-19, where they accounted for almost half of all microorganisms associated with HAIs. Resistance to carbapenemic antimicrobials is due to the production of extended-spectrum carbapenemase by nosomial bacterial pathogens isolated from ICU patients. The data obtained supports the strategy of adequate selection of antibacterial therapy regimens taking into account the sensitivity of the pathogen, including in patients with COVID-19. The intensive development of high-tech, invasive methods of diagnosis and treatment, combined with the widespread spread of multidrug-resistant microorganisms, determine the need for continuous improvement of the system of supervision and control of HAIs.
O lugar apesar das ideias: dilemas setecentistas em três rondós de Silva Alvarenga
Authors:   , Gasparete Luiz Philip Fávero
Published: November 2022

O objetivo desta dissertação é demonstrar como alguns dos poemas publicados em Glaura (1799) fazem da produção de Silva Alvarenga um caso emblemático da manifestação literária de dilemas culturais e sociais decisivos na história nacional. O argumento central é o de que a inclusão, em determinados rondós, de aspectos específicos das cantigas que eram produzidas à época pode ser entendida como uma tradução expressiva da tensão entre linguagem erudita e linguagem popular, das conexões entre literatura e música, da percepção do escravismo no Setecentos e da situação dos mestiços nessa quadra da colonização. O método empregado é o de análise das composições selecionadas a partir do confronto com certas modinhas de Caldas Barbosa, artista do mesmo ciclo normalmente citado como marco inicial da música popular produzida em solo brasileiro. Somado a isso, as análises decorrem de uma revisão acerca de pesquisas historiográficas sobre o século XVIII e de um cotejo dos argumentos dos principais comentadores que compõem a fortuna crítica em torno da obra em questão. O que se conclui é que se infiltram, justamente em meio ao imaginário bucólico que rege os rondós, afetos que apontam para dinâmicas sociais e extraliterárias, mais evidentes no material das modinhas. Conclui-se também que a obra de Silva Alvarenga é um caso inédito de produção do âmbito da literatura erudita que abarca componentes antes restritos à esfera da cultura popular.
Quelques observations sur la pratique des États-Unis d’Amérique en matière de conclusion d’accords internationaux
Authors: Galbraith Jean
Published: November 2022

The U. S. Constitution has a simple provision regarding how the United States is to join international agreements. But U. S. practice is far more complicated. Not all international agreements require the approval of two-thirds of the U. S. Senate. Instead, many can be made by the executive branch alone, and others can be made with the approval of a majority of Congress. Understanding what U. S. domestic process can be used in what circumstance is crucial for understanding how the United States engages on the world stage. The main purpose of this Article is to describe U. S. law as it relates to the making of international commitments – and also as to the implementation and termination of these commitments. In light of U. S. legal framework, the Article also identifies four implications that international partners should keep in mind when negotiating with the United States.
L’analyse de la décolonisation de Maurice sous l’angle du droit à l’autodétermination : entre apports et insuffisances (Cour internationale de Justice, Effets juridiques de la séparation de l’archipel des Chagos de Maurice en 1965, avis consultatif, 25 février 2019)
Authors: Jamal Sarah
Published: November 2022

L’analyse du processus de décolonisation de Maurice au regard du droit international a permis à la Cour d’apporter des éclaircissements juridiques sur la nature, le contenu et la portée du droit à l’autodétermination. En se fondant sur la résolution 1514 (XV), la Cour a reconnu la qualité de règle coutumière du droit à l’autodétermination en 1965-1968 et en a déduit l’existence d’un droit corollaire : le droit à l’intégrité territoriale du territoire non autonome, privilégiant, ainsi, une conception territoriale de la définition du peuple. La Cour a également précisé que la conclusion d’un accord entre la puissance coloniale et les représentants de la colonie ne constitue pas un moyen d’expression du libre consentement du peuple. Toutefois, malgré l’importance de la question de la décolonisation, la Cour a choisi d’en limiter l’examen, en excluant de son analyse plusieurs corpus juridiques pourtant pertinents.
L’Affaire relative à l’immobilisation de trois navires militaires ukrainiens (Ukraine c. fédération de Russie) : l’ordonnance du TIDM en prescription de mesures conservatoires du 25 mai 2019
Authors: Collin Charlotte
Published: November 2022

The provisional measures order issued on May 25, 2019 is part of a dispute between Ukraine and the Russian Federation over the detention of three Ukrainian military vessels and the imprisonment of its crew, which takes root in the parties’ opposition regarding their sovereignty over the Sea of Azov, the Kerch Strait and the Black Sea, that is, the maritime zone boarding Crimea. In the case at hand, the ITLOS order gives full satisfaction to the applicant, on the basis of an extended conception of its prima facie jurisdiction.
Studying the Strength Characteristics of Dental Composite Materials
Authors: Гущин А.А. , Адамчик А.А. , Рубникович С.П. , Запорожская-Абрамова Е.С. , Иващенко В.А. , Соловьёва Ж.В. , Таиров В.В. , Рисованный С.И. , Денисова Ю.Л.
Published: November 2022

Цель исследования. Оценка влияния термовибрационного воздействия на прочность на изгиб и твердость поверхности композитных пломбировочных материалов. Материалы и методы. Исследование было проведено на базе кафедры терапевтической стоматологии Кубанского государственного медицинского университета, а также на Краснодарском приборном заводе «Каскад». Исследуемые образцы были изготовлены в соответствии с групповой принадлежностью из трех различных композитных материалов: Estelite Sigma Quick, Filtek Bulk Fill Posterior Restorative и «Дент-Лайт». Оценку прочности на изгиб проводили на испытательной машине «МИП-10» фирмы «НПК «ТЕХМАШ». Определение твердости поверхности по Виккерсу осуществляли на аппарате «ПМТ-3» фирмы «Ломо». Результаты. По данным лабораторных исследований было определено статистически значимое увеличение показателей прочности на изгиб и твердости поверхности по Виккерсу всех образцов композитных материалов, подвергшихся термовибрационному воздействию перед полимеризацией. Заключение. Полученные данные свидетельствуют о повышении прочностных характеристик композитных пломбировочных материалов в результате термовибрационного воздействия перед их полимеризацией, что увеличивает срок службы композитных пломб и снижает риски образования вторичного кариеса после пломбирования.

Purpose of the study. The evaluation of the influence of thermal vibration effects on the bending strength and surface hardness of composite filling materials. Materials and methods. The study was conducted on the basis of the Department of Therapeutic Dentistry of the Kuban State Medical University, as well as at the Krasnodar Instrument Plant "Cascade". The samples under study were made according to the group affiliation from three different composite materials: Estelite Sigma Quick, Filtek Bulk Fill Posterior Restorative and DentLight. The bending strength was evaluated on the "MIP-10" testing machine of the company "NPK TECHMASH". Determination of the surface hardness according to Vickers was carried out on the device PMT-3 of the company "LOMO". Results. According to laboratory studies, a statistically significant increase in flexural strength and surface hardness according to Vickers was determined for all samples of composite materials subjected to thermal vibration before polymerization. Conclusion. The data obtained indicate an increase in the strength characteristics of composite filling materials as a result of thermal vibration exposure before their polymerization, which increases the service life of composite fillings and reduces the risks of secondary caries formation after filling.
La historia de vida del Recinto 1 de Casas Quemadas (Cusi Cusi, Jujuy, Argentina) durante la transición entre el Periodo Tardío/Inka (1430 – 1535 dc) y el Colonial Temprano (1535 – 1660 dc)
Authors: Vaquer José María , Pey Laura , Carreras Jesica , Gerola Ignacio , Cámera Yamila
Published: November 2022

En este trabajo presentamos las interpretaciones de los materiales recuperados en las excavaciones del Recinto 1 de Casas Quemadas, Cusi Cusi, Jujuy. Este recinto posee fechados que sitúan sus ocupaciones entre los siglos XV y XVII. Proponemos un enfoque micro basado en las prácticas sociales de sus habitantes para caracterizar los cambios y continuidades entre el periodo Tardío/Inka (1430 – 1535 DC) y el periodo Colonial temprano (1535-1660 DC). Nuestro argumento es que, en las etapas iniciales de la conquista española, el modo de vida de los habitantes no varío significativamente. Para ello, comparamos los conjuntos materiales provenientes de las ocupaciones Tardía/Inka y Colonial temprana. Los resultados muestran que la estructura de las actividades realizadas en el Recinto 1 fue prácticamente similar en ambos momentos, aunque algunos bienes españoles como clavos y restos de Bos taurus fueron incorporados a las actividades. Vinculamos esta situación con la ausencia de sectores de producción minera en nuestra área de estudios que interesaran a los españoles. Esta situación habría cambiado después del siglo XVII, cuando el recinto es abandonado y utilizado como paradero de arrieros de vacas, práctica que también relacionamos con el caravaneo prehispánico y con una continuidad en el uso del paisaje.
360 virtual tour and escape room design as a video games-based learning process for diagnosis and strengthening of the English language
Authors: MORENO-REYES José Miguel , ALEJOS Dylan Javier , SIEFKER David , MARTÍNEZ-MEZA Rebeca
Published: November 2022

Nowadays we know it, in these last times the return to the classroom wasn´t the return to the classroom. Some students when was studying the last year, they were waiting for the time to finish class and go out to the university, now because the pandemic they and much more students didn´t return to the classroom in a normal way. The Universidad Politécnica de Juventino Rosas and the University of Guelph closed its installation in the same way that any school, college or university in the world, and nowadays we have new students that for first time in the history they started class by online mode, and they didn’t know their scholar environment. In this project we proposed a 360 virtual tour of the UPJR and we decided make more immersive and educational the experience through the escape room design as a video game-based learning process to diagnosis the English language in the first stage. The novelty of the project is to include the new TIC´s showed too in the manufacture 4.0 as the VR technology to replay in virtual way the main scholar buildings, classrooms, laboratories, library, soccer field and the cafe of the University.
SiO2 nanoparticle/Polymer composite as anticorrosive coating for A-36 steel
Authors: MENDOZA-MIRANDA Juan Manuel , CORTES-LÓPEZ Alfredo , GONZÁLEZ-MÉNDEZ Luis Fernando , GÓMEZ-RAMOS Irma Beatriz
Published: November 2022

Automotive paint is used on the surface of automobiles to decorate or beautify the vehicle. However, one of its main purposes is to prevent metal corrosion. Therefore, in this paper, the anticorrosive properties of an epoxy resin-based primer with silica nanoparticles (SPN) are investigated. The coatings were deposited on A-36 steel plates and their efficiency as anticorrosive coatings as well as their adhesion, hardness, finish, and durability properties were evaluated under accelerated aging tests simulating humid and hot weathering conditions.
The Effectiveness of Academic Supervision in Improving Online Learning during the Covid-19 Pandemic
Authors: Fadhilah Fadhilah , Murniati Murniati , Usman Nasir
Published: November 2022

This study aims to determine the implementation of the principal's academic supervision based on the implementation program, supervision, supporting and inhibiting factors in online learning during the covid-19 period at a state junior high school in  Banda Aceh. The data collection techniques used were observation, interview, and documentation study. The research subjects were school principals and teachers, totalling 12 respondents. The data analysis used was reduction techniques, data presentation, data interpretation and data verification. The results showed (1)The planning of the principal's academic supervision is carried out by establishing cooperation between teachers, principals and related parties for the achievement of learning quality. (2) The implementation of the principal's academic supervision is carried out by observing teachers doing online learning through competency standards, basic competencies, success indicators, and teaching materials. In addition, the presentation of fun material, the use of appropriate methods, and the presence of media are integrated indicators to determine the success of learning. (3) The existence of teacher awareness, good teacher perceptions, and support from parents to students are supporting factors for academic supervision so that the implementation runs successfully during the covid-19 pandemic.
Literary Ecology Study of Novels: A Strategy for Instilling Environmental-Based Character Education Values
Authors: Firnadia Evia , Nurizzati Nurizzati
Published: November 2022

The purpose of this study is to describe the attitude of avoiding the nature of damaging the environment, fostering an attitude of caring and responsible for the environment, and the attitude of saving the environment contained in the novel Serdadu Pantai by Laode Insan and the novel Dari Rahim Ombak by Tison Sahabuddin Bungin. The research method used is a qualitative descriptive research method, with the research stages of the preparation stage, the field stage, and the data analysis stage. The data in this study are in the form of words, phrases, and sentences related to literary ecology. The data sources of this research are the novel Serdadu Pantai by Laode Insan and the novel Dari Rahim Ombak by Tison Sahabuddin Bungin. Data collection techniques used reading and note-taking techniques. Based on the results of data analysis and discussion, it is known that the novel Serdadu Pantai dan Dari Rahim Ombak emphasizes to the reader how important it is to have a character who cares about the environment, so that humans can live in harmony with nature. In both novels, there is a great message to the readers about how fatal the impact that will be received by humans if they live by destroying the environment.
Demands For Blended Learning During The Covid-19 Pandemic
Authors: Lestari Yuyun Ayu , Na'imah Na'imah
Published: November 2022

Blended learning carried out during the covid-19 pandemic has changed the learning system from online to combined with offline. Currently starting with the government policy to apply lectures with a blended learning system in various universities, secondary education, basic education, and early childhood education. The blended learning system at UIN Mataram demands changes in new learning styles in its application, starting from supporting media, applications used, delivery of learning materials, and learning models between lecturers and students. UIN Mataram has implemented blended learning with the LMS (Learning Management System) application. The purpose of this study is to analyze the application of the blended learning model that has taken place at UIN Mataram with a good LMS system. This research is a descriptive qualitative research, and qualitative data obtained through observation, documentation, and interviews with credible sources. The analysis was carried out inductively, the data collected continued to be reduced and verified, and continued until meaningful final findings were found. The results showed that learning at the PIAUD UIN Mataram study program used a blended learning strategy with a percentage of 70:30, namely 70% online and 30% face-to-face. The use of Moodle based LMS assistance helps students and lecturers in carrying out blended learning lectures effectively
Education and Employability: The Critical Role of Foundational Skills
Authors: Obiakor Thelma , Newman Kirsty
Published: November 2022

A great deal of policy attention is paid to the role that education plays in driving employment outcomes. Most of this attention has focused on post-primary education— particularly Technical and Vocational Education and Training (TVET). This paper sets out the less-discussed role that foundational skills, typically built through basic primary education, play in driving employability; how foundational skills affect TVET provision; and what implications this body of evidence has for education policy. We acknowledge the need to consider how education systems build skills which will contribute to countries’ economic aspirations. However, we suggest that the dominant discourse which focuses specifically on TVET and how it can be linked to employer demands is unlikely to be successful for several reasons. Firstly, we show that foundational skills are themselves associated with economic gains for individuals and societies. This, together with the evidence showing extremely low levels of foundational skills in many countries, suggests that focusing on improving foundational skills may be a more cost-effective approach to driving employability than has been previously acknowledged. Furthermore, we show that TVET (and other later forms of education) may struggle to add value where foundational skills are not in place. Focusing large amounts of energy and resources on reforming TVET may not achieve hoped-for impacts if TVET entrants don’t have the necessary foundations to learn. We discuss the popular policy prescription of linking TVET provision to employer needs. As well as noting our concern that this focus fails to acknowledge the binding constraint of low foundational skills, we also set out why employer demand for skills may not be a good indication of actual future skills needs. We therefore suggest a more nuanced discussion on skills for employability which acknowledges economic development goals; the skills that will be needed to achieve them; and, crucially, a country’s starting point. We end the paper by highlighting the fact that unemployment and underemployment are generally caused by a lack of jobs, not a lack of skills. We therefore urge policymakers to be realistic about the extent to which any education policy—whether focusing on foundations, technical, and vocation skills or any other type of skills—can affect employment outcomes. Considering the evidence presented in this paper, we suggest that policymakers in many low- and lower-middle income countries may want to consider a stronger focus on foundational skills. The major reason for focusing on foundational skills is that a quality education is a fundamental right for all children which will allow them to experience lifelong learning. This paper sets out that foundational skills will also be the first step towards achieving a more employable workforce—but also that policymakers should consider the full range of policies that need to be in place to deliver productive employment and economic growth.
Kentsel Dönüşüm Projelerinin Tipolojik Sürekliliğe Etkisi: Bursa Doğanbey Kentsel Dönüşüm Projesi
Authors: GÖRGÜLÜ Lale , GÖRGÜLÜ Çağla
Published: November 2022

Devingen olan kentler değişen koşullara uyum sağlamak amacıyla kendiliğinden veya bir müdahale ile dönüşmektedir. Gerçekleşen kentsel dönüşüm ile mekânsal organizasyona yeni kentsel kompozisyonlar ve fonksiyonlar dâhil olmaktadır. Üretilen tipolojiler kentsel morfoloji bağlamında süreç tipolojisini etkilemektedir. Araştırmanın amacı, müdahale edilen kentsel dokunun tipolojik süreç ve süreklilik çerçevesinde komşuluğunda bulunan kentsel dokular ile karşılaştırmalı olarak incelenmesidir. Tipolojik süreç kentsel dönüşüm uygulamalarına planlama ilkeleri ve tasarım kodları sunarken; kentsel dönüşüm projeleri ise süreç tipolojisini radikal olarak değiştirme riskine sahip olabilmektedir. Bu etkileşim doğrultusunda araştırmanın yöntemi mimari tip ve kentsel morfoloji arasındaki ilişkiyi inceleyen tipo-morfolojik yaklaşım olarak belirlenmiştir. Müdahale edilen kentsel dokunun tipolojik sürekliliğe etkisinin inceleneceği araştırmada, tarihi kent merkezinin tipolojik geçiş bölgesinde yer alan ve dönüşüm sonrası ürettiği kentsel doku ile ikonik bir örnek olan Bursa Doğanbey Kentsel Dönüşüm Projesi ele alınmıştır. Araştırmanın bağlamını Bursa Tarihi Kent Merkezi, Reyhan ve Doğanbey geleneksel kent dokuları oluşturmaktadır. Tarihi kent merkezi ve çevresinde uygulanacak her türlü müdahalede tipolojik referanslar, kentsel dokudaki bütünlüğün sağlanması ve tarihi kent merkezi siluetinin korunması açısından önem taşımaktadır. Araştırma sonucunda kentsel dönüşüm projesinin tiplerin evrimleşmesinde yarattığı keskin kırılma ile tipolojik süreksizliğe, dönüştürdüğü boşluk-hacim ilişkisiyle tarihi kentsel dokuya aykırı ölçek farklılığına ve mimarlık kültüründe meydana getirdiği değişim ile kentsel belleğin zarar görmesine neden olup kentsel morfolojiyi etkilediği görülmektedir. Sonuç olarak tarihi kent merkezleri ve çevresinde gerçekleşen kentsel dönüşüm projelerinin hem tipolojik süreci referans alması gerekliliği hem de tipolojik süreci yönlendirici unsurlardan biri olduğu çalışmanın bilime katkısını ortaya koymaktadır.
Pengaruh Kinerja Keuangan, Implementasi Good Corporate Governance dan Struktur Kepemilikan Terhadap Pengungkapan Sustainability Report
Authors: Rahmat Kamaluddin
Published: November 2022

Tujuan dari penelitian ini adalah untuk menganalisa pengaruh Kinerja Keuangan, Implementasi Good Corporate Governance, dan Struktur Kepemilikan terhadap Pengungkapan Sustainability report di 15 perusahaan yang memiliki skor Corporate Governance Perception Index pada tahun 2018. Pengungkapan Sustainability report diproksikan dengan indikator G4 yang terdiri dari 152 indikator. Metode yang digunakan dalam penelitian ini adalah metode statistik non-parametrik dengan Somer’s D Test sebagai metode analisis data. Hasil penelitian menyatakan bahwa Profitabilitas dan Likuiditas sebagai variabel dari Kinerja Keuangan memiliki pengaruh positif dan signifikan terhadap pengungkapan Sustainability report. Implementasi Good Corporate Governance memiliki pengaruh positif namun tidak signifikan terhadap pengungkapan Sustainability report. Kepemilkan Institusional sebagai variabel dari Struktur Kepemilikan memiliki pengaruh positif namun signifikan terhadap pengungkapan Sustainability report sedangkan Kepemilikan Manajerial dan Kepemilikan Asing tidak memiliki pengaruh sama sekali.
Restricción de la libertad de expresión política en redes sociales
Authors: Zabala Puchana Óscar David
Published: November 2022

Las redes sociales se han vuelto el principal aliado de todos los seres humanos en lo que a comunicación e información respecta. Tanto es así que podemos observar cómo distintos planteamientos y formas de interactuar se han trasladado al plano digital. Una de esas formas es la política como medio de difusión y de propaganda electoral en las distintas redes sociales. Este cambio de paradigma ha generado que el político que sepa desenvolverse mejor en las aplicaciones y los programas será el que tenga la ventaja en un terreno electoral. Sin embargo, la política como cualquier disciplina humana que se encargue de comprender el hombre, tienen posiciones criticables en muchos aspectos. Cuando eso sucede, las redes sociales en su gran mayoría toman partido que, en el peor de los casos, generan censuras a ciertos actores políticos. En esa medida, ¿qué parámetros debe tomar la administración de justicia en caso de ponderar derechos de los actores encontrados?
Development of micrometer-scaled aluminum-enriched phosphate glass beads with a silver activator for real-time profile measurement of a clinical carbon beam
Authors: Akiyama Shun , Sasaki Aika , Kimura Shigetaka , Iiduka Kazuya , Akagami Yuki , Sakai Makoto , Hanaizumi Osamu , Kada Wataru
Published: November 2022

Real-time monitoring of clinical carbon beams from a synchrotron accelerator was accomplished by using aluminum-enriched phosphate glass with a silver activator. Build-up effects are often observed in commercially available silver-containing phosphate glass that strongly limit the use of the glass in real-time dosimetry in clinical particle therapy fields. In this study, we modified the composition of silver-containing phosphate glass by adding an additional 0.2 mol% aluminum impurity to cause broadband radioluminescence under clinical carbon beam exposure. Convenient real-time radiation monitoring was accomplished on submillimeter scales by using aluminum-enriched silver-containing phosphate glass beads. Optical fiber dosimetry using the aluminum-enriched silver-containing phosphate glass was demonstrated, and stable radioluminescence was visualized for each bunch of 290 MeV u−1 from a synchrotron under different beam fluxes up to 3 × 109 particles/spill (clinical beam conditions).