bluuebunny/crossref_metadata_2025 huggingface dataset:
La protección de la cultura y el derecho a la educación intercultural bilingüe en Pichari (VRAEM) de Perú
Authors: Añaños Bedriñana Karen , Herreras Gutiérrez Gisela
Published: June 2023

El artículo analiza la Educación Intercultural Bilingüe (EIB) en Perú, en particular, se aborda el caso del Instituto de Educación Superior Pedagógico “Quillabamba”, filial Pichari del Valle de los Ríos Apurímac, Ene y Mantaro (VRAEM), como centro EIB de la región, con el propósito de plantear algunas reflexiones y propuestas de mejora. Del estudio se deduce que Perú cuenta con políticas públicas y con un marco jurídico en EIB, en conexión con los tratados internacionales de derechos humanos, que protegen los derechos de los pueblos indígenas, en especial, el derecho a la educación; sin embargo, en la práctica, su implementación y ejecución en el distrito de Pichari del VRAEM, aún constituye un desafío pendiente a resolver. Finalmente, el estudio enfatiza la importancia de la EIB como una herramienta para garantizar la igualdad, el respeto a la diversidad y el desarrollo integral de los individuos y las comunidades. Es ese sentido, es trascendental el papel de la EIB en la promoción de la justicia social, los derechos humanos y la inclusión para los grupos minoritarios y en situación de vulnerabilidad como son los pueblos indígenas, cuyos saberes y conocimientos ancestrales corren el riesgo de perderse e, incluso, extinguirse, si no hay una adecuada protección y gestión política estatal. Por todo ello, la importancia de preservar su lengua y, por ende, su identidad cultural.
Challenges of Shaping Student Study Strategies for Success: Replication and Extension
Authors: Maurer Trent W. , Cabay Emily
Published: June 2023

We replicated and extended Maurer and Shipp’s (2021) intervention to teach students the successive relearning study strategy and encourage its use in preparation for course exams. This mixed-methods project was conducted in partnership between the faculty member teaching the course and an undergraduate student enrolled in the course. Results were similar to those reported by Maurer and Shipp (2021) but differed in meaningful ways. In this investigation, students reported more spaced practice in studying for the exam, demonstrated both greater confidence and greater mastery of the targeted course concept and closer alignment of confidence and mastery. They also reported greater unprompted metacognitive awareness of their own need to learn better study strategies. Qualitative responses from students aligned with the recommendation from SoTL literature that interventions to teach students to adopt more effective study methods need to both provide information and research evidence about more effective methods to students. The responses also aligned with the recommendation from SoTL literature to scaffold students through how to use the methods with opportunities to practice them. Time management issues emerged as the largest student-identified barrier to adopting successive relearning.
Der Krieg gegen die Ukraine und die Medien
Authors: Grotzky Johannes
Published: June 2023

Der Kampf um die Meinungshoheit im Krieg gegen die Ukraine wird maßgeblich über die Medien geführt. Russland bedroht Journalisten, die von den staatlich verordneten Positionen abweichen, mit drakonischen Strafen. Die Ukraine wirbt aktiv um Verständnis für ihre Lage als angegriffener Staat, versucht aber gleichzeitig die Nachrichtengebung im eigenen Land teilweise zu zentrieren und innenpolitische Konflikte zu überdecken.
„Sankt-Mariuburg“ – ein Animationsfilm zum Ukrainekrieg im Russischunterricht
Authors: Birzer Sandra , Steinbach Andrea
Published: June 2023

Die Zeichentrickserie Masjanja (Масяня) ist Kult in Russland. Seit dem Jahr 2001 sind mehr als 160 Folgen der Serie entstanden, die sich üblicherweise durcheinen ironischen Grundton auszeichnet. Seit dem Beginn des Krieges gegen die Ukraine hat sich der Grundton der Serie jedoch stark geändert. Die Serie bezieht eindeutig Stellung gegen die Invasion der Ukraine und versucht, den Zuschauer:innenn in Russland diese Perspektive anschaulich nahezubringen. Besonders bemerkenswert ist dabei die Folge 162 mit dem Titel „Sankt-Mariuburg (Санкт-Мариубург)“. Sie eignet sich besonders gut, um den Krieg in der Ukraine im Unterricht zu thematisieren, da sie als Parabel angelegt ist und durch ihre visuellen Anspielungen und historischen Vergleiche Interpretationsmöglichkeiten auf mehreren Ebenen eröffnet. Der vorliegende Text liefert Hintergrundinformationen und Interpretationsmöglichkeiten für eine Reihe von Lerner:innengruppen. Materialien zur vertiefenden Behandlung sowie ein kurzer Stundenüberblick finden sich am Ende des Textes.
Tapete de serragem da semana santa: aspectos desenhísticos de uma tradição da cidade de Ouro Preto
Authors:   Universidade Estadual de Feira de Santana, Freitas Esequias Souza de
Published: June 2023

Este estudo de caso representa o estado de uma pesquisa no Mestrado em Desenho da UEFS, e toma o tapete de serragem da Páscoa em Ouro Preto, Minas Gerais, como desenho signo de uma territorialidade ancorada a eventos da história dessa cidade. Por meio dessa tradição são representados elementos da memória de antigos conflitos em Ouro Preto, em que duas comunidades imaginadas reafirmam suas identidades, confeccionando o tapete como obra de arte coletiva e desmanchando-o em ato celebrativo. A pesquisa também pretende caracterizar tecnicamente o tapete de serragem como registro de uma tradição que tem sofrido adaptações, já que seu modo de fazer tem sido sujeito a acomodações quanto ao uso de novos materiais, imposições de percursos urbanos e figuração de temáticas contemporâneas. Uma leitura de seu saber fazer implica análise da competência desenhística empregada na composição dos segmentos do tapete pelos moradores de Ouro Preto. Sendo bem efêmero, o tapete integra o patrimônio cultural imaterial da comunidade, e a memória de seu saber constitui um legado às gerações seguintes.
Arquivo, arte & arquitetura: memorial aos judeus assassinados da Europa
Authors:   Pontifícia Universidade Católica do Rio de Janeiro, Lucena Francisco Palmeira de
Published: June 2023

Desde 1989, com o “círculo de incentivo”, idealizado e presidido pela jornalista alemã Lea Rosh para a construção do “Memorial aos Judeus Assassinados da Europa”, o debate político, moral, ético e estético não cessou. Após três anos de sua inauguração, o memorial é agora a materialização no espaço urbano berlinense, como um diagrama, de parte de toda discussão. Questões relativas à pertinência da construção do memorial, os seus obstáculos políticos de aprovação, as discussões em torno das versões do projeto do arquiteto Peter Eisenman e os motivos da saída do artista Richard Serra do projeto, não parecem agregar consistência a um discurso que se pretende analítico à posterioridade da construção. A hipótese que é lançada aqui, de um deslocamento da idéia de monumento operada por Eisenman, demanda a partir da obra do “Memorial aos Judeus Assassinados da Europa”, uma problematização teórica focada no arquivo, na arte e na arquitetura. Isto nos aproxima tanto de questões éticas e políticas quanto artísticas e arquitetônicas. A memória neste contexto é própria da herança heterogênea imposta pelo Holocausto, que tanto dá quanto exige uma ação crítica e uma escolha. Neste sentido o discurso sobre ética e arquivo, na desconstrução de Derrida, pode ajudar no entendimento das estratégias de deslocamento projetual de Eisenman. Na abordagem do problema do mal do arquivo, isto é, da ânsia de memória face à supressão do tempo e à velocidade da repetição da informação, temos que estar atentos tanto a pressupostos classificatórios e ontológicos, que dizem respeito ao “lugar” do arquivo, quanto a pressupostos nomológicos, que são de ordem ética e política. Estes deslocamentos, no caso da arte, aparecem aqui em diálogos com Marcel Duchamp ou Robert Smithson. Em ambos, a poética é marcada por essa noção de deslocamento, em Duchamp, no próprio procedimento do readymade: o jogo, o xadrez [...] e em Smithson, no problema da escala, da dialética entrópica, da ficção e das poéticas da transitoriedade. Este trabalho procura, assim, debater conceitos de legitimação e expansão da disciplina arquitetônica enquanto prática e teoria estabelecendo uma discussão em dois pares de deslocamentos principais: ética & arquivo e arte & arquitetura.
O modelo Pzziano na pintura de falsa arquitetura na obra do pintor-decorador Luís Gonçalves de Sena (1713-1790)
Authors:   Universidade Nova de Lisboa, Mello Magno Moraes de
Published: June 2023

O ambiente dos tetos pintados não seria tão importante e completo sem a presença do pintor-decorador Luís Gonçalves de Sena (1713-1790), artista que trabalhou intensamente como pintor de painéis, retratista, brutescador, preparador de cenas perspectivadas e, como referiu Joaquim Duarte Benedicto, era também belo paizista.
Os escritos de Quatremère de Quincy, Percier e Fontaine nos discursos de Félix-Émile Taunay
Authors:   Universidade de São Paulo, Dias Elaine
Published: June 2023

A teoria artística proposta por Quatremère de Quincy na França, sobre a imitação, a beleza e a importância da arquitetura entre as artes, ao final doséculo XVIII e início do século XIX, e sua posterior influência aos escritos de Percier e Fontaine, causaram também reflexos no sistema artístico brasileiro. A proposta didática de Félix-Émile Taunay na direção da Academia Imperial de Belas Artes, entre 1834 e 1851, e o conteúdo teórico presente em alguns de seus discursos pronunciados nas sessões públicas anuais da instituição, revelam a influência destes arquitetos franceses, sobretudo na importância destinada à arquitetura como instrumento de consolidação da Academia. Propomos neste ensaio, uma breve análise sobre estas teorias presente nos escritos de Taunay e seus objetivos no que se refere ao campo da arquitetura e suas relações com o governo de D. Pedro II.
A vanguarda em Hélio Oiticica: uma revolução no conceito estrutural de obra de arte
Authors:   Universidade Federal do Espírito Santo, Santos Nívia Valéria dos
Published: June 2023

Este trabalho se propõe a estudar o início da arte interativa no Brasil, tomando como referência a fase denominada experimental da produção Hélio Oiticica(1937-1980). Entre as décadas de 1960 e 1970, esse artista se engajou em criações que tinham a intenção de mobilizar todos os sentidos, isto é, envolver o indivíduo total, através de proposições que consistiam em inserir o espectador na obra, buscando uma interação corpo/ objeto/ espaço. Essa consciência corporal pretendia, ainda, romper com as divisões - antes bastante marcadas entre artista e espectador - e desmitificar os conceitos tradicionais de arte e de artista, um prenúncio da contemporaneidade brasileira. A Atuação crítica do artista propõe a aproximação entre arte e vida, abrindo um campo experimental ousado e inédito no contexto da vanguarda artística brasileira da década de 1960. Uma dessas criações foi Parangolé, cuja significação está particularmente no envolvimento do corpo do participante pelas capas, uma referência ao que permanece aberto à imaginação do espectador, que sobre a obra se cria.
A história vista debaixo da viola de Tião Carreiro
Authors:   Universidade Estadual de Campinas, Faustino Jean Carlo
Published: June 2023

O presente artigo apresenta uma análise da música “viola vermelha” da dupla de música caipira “Tião Carreiro e Pardinho”. A análise da letra da música é precedida por uma introdução que apresenta o contexto da pesquisa mais ampla na qual se insere este trabalho, sendo seguido por considerações sobre a estética do estilo musical ao qual pertence a música em questão: a moda de viola. Após a análise, seu resultado é confrontado com os resultados das outras análises que compõem a pesquisa mais ampla da qual esta faz parte procurando, com isso, realizar a integração das partes ao todo no sentido de compreender a unidade complexa formada pelo conjunto. Ao final são também apontados os próximos passos surgidos como desdobramentos do presente trabalho.
Gravura moderna brasileira: Darel e a fotografia
Authors:   Universidade Estadual de Campinas, Gorino Vitor Hugo
Published: June 2023

Darel Valença Lins, nascido em Palmares em 1924, iniciou sua carreira artística no Recife, como desenhista e ilustrador. Fez-se mais conhecido quando passou a morar no Rio de Janeiro em 1948, e estudar gravura em metal com Henrique Oswald no Liceu de Artes e Ofícios.
PELUANG DAN TANTANGAN LITERASI PASAR MODAL SYARIAH DI MATARAM
Authors: Aziz Ahmad Amir , Elbadriati Baiq
Published: June 2023

Tingkat literasi pasar modal syariah secara nasional masih sangat minim, dibandingkan dengan literasi sektor keuangan lainnya, tidak terkecuali di daerah. Penelitian ini bermaksud menelusuri peluang yang ada dan hambatan yang muncul, dengan mengambil kasus di kota Mataram, untuk kemudian dihasilkan model literasi pasar modal syariah. Hasil studi menunjukkan, dengan berkembangnya trend syariah dan dukungan DSN-MUI dan OJK, peluang berkembangnya literasi cukup kuat. Minat investasi masyarakat dan keterlibatan aktif civitas akademika kampus, merupakan faktor penentu lainnya. Sedangkan tantangan terbesarnya adalah belum adanya persepsi yang positif di kalangan masyarakat atas keberadaan pasar modal syariah itu. Model literasi yang ada selama ini seperti sekolah pasar modal dan seminar dapat dikembangkan lagi dengan jenis dan bentuk literasi yang lebih sesuai dengan kelompok sasaran sehingga menghasilkan komunitas yang well-literated.
Addressing the quality of higher education among the pandemic in Nueva Ecija, Philippines through the establishment of the community e-learning resource center
Authors: Moralde Rachael Reyes
Published: June 2023

The Community E-learning Resource Center (CeLRC) has enabled faculty members and students to have access to the online facility at higher education institutions in collaboration   with the Local Government Units (LGUs) and the Department of Information and Communications Technology (DICT) Tech4Ed centers available in the area. It specifically targets students and faculty members who do not have access to the internet or information and communications technology (ICT) devices such as computer desktops, laptops, tablets and smartphones that support online classes. This study assessed and evaluated the three newly established Community e-Learning Resource Centers in three municipalities in Nueva Ecija, San Isidro, Papaya and Penaranda. A researcher constructed questionnaire and quantitative research design are used. Results showed that the facilities found in three community e-Learning resource centers are safe, secure, functional in every aspect, highly acceptable and comfortable to use. The CeLRC staff is competent and shows a strong sense of interpersonal skills. It is recommended that the results of this study be used by the CeLRC managers to improve the services of the center to ensure its viability, efficacy and efficiency.
Use of crushed bricks and recycled concrete as replacement for fine and coarse aggregates for sustainable concrete production
Authors: Aboalella Alaa Abdeltawab , Elmalky Abeer
Published: June 2023

The growing concern over the significant ecological changes requires sustainable developments in all fields. Concrete production is one of the largest consumers of natural resources as it consumes a huge volume of natural fine and coarse aggregates, which constitute 70% - 80% of the concrete volume. It is evident that such large amount of concrete production in the growing construction industry puts significant impact on the use of natural resources and the environment. Hence, investigating the use of recycled materials to replace the finite natural resources became evident and is the focus of researchers. In this research, the use of waste crushed bricks (CB), and crushed recycled concrete (CRC) as a partial replacement of fine and coarse aggregates in concrete was studied. The replacement ratios of 10%, 50%, and 100% by weight of either fine or coarse aggregates were used. Eight concrete mixes with 168 specimens were tested for compressive, splitting tensile as well as, flexural strength. All tests were carried out at ages of 7, 28 and 56 days. The results indicated that there is a feasibility of using bricks and concrete wastes in concrete mix as a partial replacement of course and fine aggregates. It is deduced that a 50% replacement ratio of coarse aggregate with crushed concrete resulted in a 30%, 25%, and 23% increase in compressive, tensile, and flexural strengths, respectively. While 50% replacement ratio of fine aggregate with crushed bricks resulted in a 23%, 28%, and 19% increase in compressive, tensile, and flexural strengths, respectively. The most effective mix was at 50% replacement ratio of coarse aggregate with crushed concrete in combination with 50% replacement ratio of fine aggregate with crushed bricks. The results of this mix showed 32%, 28%, 26% increase in compressive, tensile, and flexural strengths, respectively.
Effects of pre-cracked reinforced concrete in compression zone on prefabricated RC beam behavior
Authors: Yılmaz Mahmut Cem
Published: June 2023

Cracks can occur in the compression zone of a beam cross section, in the middle part of the span due to different reasons. For instance, due to accidents happened during transportation of the prefabricated Reinforced Concrete (RC) beams on manufacturing site. In this study, effects of such cracks on the behavior of RC beams are investigated experimentally. Compression strength of concrete and intensity degree of pre-created cracks were adopted as test parameters. A total of eight RC beam specimens were tested under the effect of bending, applying three-point loading. According to the results it was observed that the pre-cracked RC beams had almost the same strength with the reference beams; but bending stiffness of the RC beams decreased when the intensity of the cracks increased relatively.
Turkey's disaster and emergency profile: Settlement information and analysis of earthquake parameters
Authors: Birinci Fahri
Published: June 2023

Thousands of people die and billions of dollars of financial loss occur every year in Turkey and the world due to natural disasters. Although many reports and regulations have been prepared to eliminate the negative situations caused by natural disasters, changing climate conditions, technological advances and social habits require these measures to be developed, renewed, and made sustainable over time. In this context, creating a data pool to prevent the loss of life and property caused by disasters and performing the necessary studies becomes even more important. In addition to disaster-related information, this data pool should include physical and geographic information such as the distances of people's communal living areas to the administrative centers, the population in these living areas, and transportation facilities. In this study, a disaster and emergency profile for Turkey has been tried to be presented. For this, the distances of all settlements to the districts and provincial centers they are connected to, the transportation times and speeds of these centers, the altitudes of the settlements, earthquake zone numbers, earthquake hazard map parameters, populations, and areas were compiled or calculated. The evaluation was made separately according to the districts and provinces, taking into account the determined limits. Based on the profile reached at the end of the study, suggestions were developed for planning and projects for disasters and emergencies.
Investigation of mechanical properties of steel reinforcements in reinforced concrete structures as a result of exposure to fire
Authors: Koşatepe Abdulhadi , Yazici Casim
Published: June 2023

In this study, it is aimed to investigate the properties of the most commonly used metal and alloy steel materials, which are used in our country and in the world as engineering materials, under the influence of fire of the rebar in the concrete. Inspection standard TS 708:2010 S420 quality 8 mm diameter ribbed construction iron bars for 90 minutes in resistant furnace, atmospheric environment at 600 °C, 800 °C and 1000 °C concrete inside and outside the concrete at the specified temperature fire simulation, the process was allowed to cool in air. With the protective environment created by reinforced concrete, the temperature directly affecting steel bars located outside the concrete under the same conditions, The variable properties of the sample, which are inside the concrete and outside the concrete, were evaluated comparatively. Surface images of the specimens prepared in metallography were taken at different magnifications. The tensile strength of rebar bars did not change significantly according to the environment, but the samples in the concrete showed a more ductile tendency than the samples outside the concrete. The hardness values of the steel bars in the concrete and the steel bars other than the concrete decreased as the temperature increased and this decrease was higher in the samples in the concrete.
Projected impacts of climate change on viticulture over French wine regions using downscaled CMIP6 multi-model data
Authors: Zito Sebastien , Pergaud Julien , Richard Yves , Castel Thierry , Le Roux Renan , García de Cortázar-Atauri Iñaki , Quenol Hervé , Bois Benjamin
Published: June 2023

Climate change is a major challenge for the French wine industry. Climatic conditions in French vineyards have already changed and will continue to evolve impacting viticulture.This study aims to analyse the evolution of agro- and eco-climatic indices based on phenology simulation of French wine-growing regions. This evolution was analysed on a recent-past period (1962–1991 to 1992–2021) using SAFRAN climate data and on a future projected period (1985–2014 to 2041–2070) with two SSP trajectories (SSP2-4.5 and SSP5-8.5). A set of 19 CMIP6 climate models downscaled at 8 km grid resolution over France coupled with three phenological and a water balance model were used. Phenological model parameters and training system characteristics were adapted to each region to match as much as possible current practices.Temperatures during the growing season have increased by +1 °C to +2.1 °C since the second half of the 20th century and could rise to +3.7 °C in regions around the Mediterranean by 2070. The inter-model variance concerning the precipitation is high, a significant change (decrease) in precipitation during the grapevine growing season is observed only for the regions of western France (Oceanic climate) over the period 2040–2071 with the SSP5 trajectory. All simulated phenological stages have shifted toward earlier dates. Their occurrence should be even earlier by 2070 with an average advance of up to 22 days for the mid-veraison of Pinot noir in eastern France. The theoretical maturity date (sugar content) should also be advanced from 19 to 30 days depending on the considered region and SSP. Thermal conditions closer to the photosynthetic optimum should promote onset by the early second half of the 21st century. The increase in both the number of hot days and grapevine water deficit during the period of fruit development should impact grape production in quality and quantity in all wine-growing regions. Spring frost projections show no significant change in risk for the second half of the 21st century, compared to current conditions.
Instagram and buying decision processes of restaurant consumers
Authors: Aprilia Monika Pretty
Published: June 2023

Social media has changed the way people consume. One of the changes is how people eating outside at restaurant. People only need mobile phone to gather information when they feel hungry and look for a place to have dine. Consumers choose restaurants based on the information they get from social media. Consumers can decide which restaurant they would like to go just after checking its reviews and photos on Instagram. This research aims to find the information that consumers use in the buying decision processes. The data was collected through in-depth interviews with restaurant consumers who live in major cities in Indonesia. This study finds that price, location, and Instagram reviews have been considerations in the buying decision processes.
The integration between the Internet of Things and Artificial Intelligence
Authors:   Assistant professor Department of CSE,RNSIT, N Supritha , Naik Pooja Venkatesh ,   Department-CSE ,RNSITUsn:1RN21CS106
Published: June 2023

The digitalization of the world today is advancing. In this time period, people started to get interested in emerging developments like AI, ML, IoT, and data analytics.Individuals are attempting to use machines and other methods to make their work easier. Another idea that was founded on the aforementioned developments is the autonomous concept. IoT and AI were widely used in the business, agricultural, and health care sectors. Therefore, Applications that link AI and IoT are becoming increasingly popular these days. Many sectors also switch from non-automated to IoT-driven solutions that are additional accurate and Controllable than previously.Due to AIs inclusion in those systems, their level of dependability is likewise very high. As a result, humans do not need to focus on numerous jobs because the system is taken care of by IoT platforms driven by AI.IoT will continue to face several severe problems, such as security risks and ethical dilemmas. IoT with AI may seem exciting, but what matters most is how the general public views it—whether they see it as a benefit, a burden, or a threat.
A Descriptive Analysis of Sleeve Gastrectomy in Japan Based on National Registry by Japanese Society for Treatment of Obesity
Authors: Okazumi Shinichi , Oshiro Takashi , Sasaki Akira , Matsubara Hisahiro , Tatsuno Ichiro
Published: June 2023

In Japan, bariatric surgical treatment was started in 1982. The Japanese Society for Treatment of Obesity (JSTO) was established in 2007 and then JSTO started national registry of bariatric surgery cases and multidisciplinary educational program. 44 facilities registered 4055 bariatric surgical cases until 2021. In this study, the purpose is to clarify the indication, the safety and the effectiveness of the sleeve gastrectomy using national registry data base compiled by JSTO. Preoperative BMI was ranged from 27.6 to 90.7kg/m2, and the mean value was 42.7. As gender, men/women was 1/1.3. Age was 42.2 as mean.　As preoperative comorbidities, DM ratio was 54.4% of the patients, Hypertension 64.5%, dyslipidemia 65.1%, and sleep apnea syndrome 69.8%. As operation method, laparoscopic method were taken in 99.7% of the cases. The intra operative incidents rate was 0.9 %. Conversion rate to open method was 1.1%. Postoperative morbidity ratio was 5.6% and mortality was 0 %. Reoperations were performed in 1.5 % of the cases. Postoperative hospital stay was 5 days in Median value. Body weight loss was 27.6 kg in the mean value after follow up days of 279±245. As the effect on the preoperative metabolic comorbidities, DM has improved in 82.9 % of the cases, hypertension 67.9 % and Dyslipidemia 66.6%. In conclusion, using JSTO database, we evaluated the indication, postoperative complications and weight loss effect of sleeve gastrectomy in Japan. Regarding the evaluation of the effect on preoperative comorbidities, future follow-up based on more detailed criteria was considered to be necessary.
A Second Order Dynamic Friction Model Compared to Commercial Stick-Slip Models
Authors: Rill Georg , Schuderer Matthias
Published: June 2023

Friction has long been an important issue in multibody dynamics. Static friction models apply appropriate regularization techniques to convert the stick inequality and the non-smooth stick-slip transition of Coulomb’s approach into a continuous and smooth function of the sliding velocity. However, a regularized friction force is not able to maintain long-term stick. That is why, dynamic friction models were developed in the last decades. The friction force depends herein not only on the sliding velocity but also on internal states. The probably best known representative, the LuGre friction model, is based on a fictitious bristle but realizes a too simple approximation. The recently published second order dynamic friction model describes the dynamics of a fictitious bristle more accurately. Its performance is compared here to stick-slip friction models, developed and launched not long ago by commercial multibody software packages.
Proposition of FSR Photon Suppression Employing a Two Positron Decay Dark Matter Model To Explain Positron Anomaly in Cosmic Rays
Authors: Barak Ramin , Belotsky Konstantin , Shlepkina Ekaterina
Published: June 2023

The origin of an anomalous excess of high-energy (about 100 GeV and higher) positrons in cosmic rays is one of the rare problems in this field which is proposed to be solved with dark matter (DM). Attempts to solve this problem are faced with the issue of having to satisfy the data on cosmic positrons and cosmic gamma-radiation, which inevitably accompanies positron production such as FSR (final state radiation), simultaneously. We have been trying to come up with a solution by means of two approaches: making assumptions (*) about the spatial distribution of the dark matter, and (**) about the physics of its interactions. This work is some small final step of a big investigation regarding the search for gamma suppression by employing the second approach and a model with a doubly charged particle decaying into two positrons (X++→e+e+) is suggested as the most prospective one from those considered before.
On Parameterized Theta Function Identities
Authors: Jun Hao Li
Published: June 2023

In history, theta function identities have been studied extensively and

deeply. In this paper, applying the residue theorem of an elliptic function, we obtain a

parameterized theta function identity. Then, by selecting the appropriate parameter,

we derive some famous Jacobi identities, as well as other relatively simple theta

function identities.
Concentration Characteristics and Health Risk Assessment of Heavy Metals in the Water of Nandong Underground River Watershed, China
Authors: Lan Funing , Jiang Zhongcheng , Zhao Yi , Yu Yang , Li Jun , Li Yanqing , Zhu Xiuqun
Published: June 2023

Wastes from social economic activities had great impact on water quality thereby limiting water usability for domestic purposes. Sewages discharge from people activities, usually consist of undesirable concentrations of soluble chemicals that infiltrate into the surrounding surface and underground water, and then constitute health risk to the populace. In order to investigate the concentration characteristics and health risk for the local residents in Nandong Underground River Watershed (NURW), eleven common heavy metals in the water body analysis were conducted. Health risk assessment (HRA) was taken to analyze eleven heavy metals of 84 water samples from surface and underground waters in NURW: 36 samples underground water and 48 samples surface water. Our results showed that the heavy metals concentration order is that of Fe > Al > Mn > Zn > As > Cd > Pb > Cr > Ni > Cu > Hg. Correlation analysis indicates that these eleven metal elements have certain similarity on material source and migration transformation. The health risks for local residents exposed to metal elements in the water of NURW mainly from carcinogenic risk (10−6～10−4 a−1) through drinking way, and the health risk of heavy metals exposed to children through drinking way was much higher than adults. The maximum exposing health risks of Cr in both underground and surface water were higher than the recommendation standard (5.0×10-5 a-1) from ICRP, and all the values over the standard (5.0×10-6 a-1) recommended by the Swedish Environmental Protection Agency and the Dutch Ministry of Construction and Environment and the British Royal Society. The results of health risk assessment shows that Cr in the water of NURW was the mainly source of carcinogenic risk for the local residents, following by Cd and As. Consequently, it is necessary to control the three carcinogenic metals when the water was used as drinking water source.
Systemic Neoadjuvant and Adjuvant Therapies in the Management of Hepatocellular Carcinoma – A Narrative Review
Authors: Chamseddine Shadi , LaPelusa Michael , Kaseb Ahmed Omar
Published: June 2023

The burden of hepatocellular carcinoma (HCC) continues to pose a significant global health problem. Several systemic therapies have recently been shown to improve survival for patients with unresectable disease. However, evidence is limited to support the use of neoadjuvant or adjuvant systemic therapies in patients with resectable disease, despite the high risk of recurrence. Neoadjuvant and adjuvant systemic therapies are being investigated for their potential to reduce recurrence after resection and improve overall survival. Our review identified various early-phase clinical trials showing impressive preliminary signals of pathologic complete response in resectable disease and others suggesting neoadjuvant therapies, particularly when combined with adjuvant strategies, may convert unresectable disease to resectable and cause significant tumor necrosis, potentially decreasing recurrence rates. The role of adjuvant therapies alone may also have a role in the management of these patients, particularly in reducing recurrence rates. Heterogeneity in trial design, therapies used, patient selection, and a scarcity of randomized phase III trials necessitate the cautious implementation of these treatment strategies. Future research is required to identify predictive biomarkers, optimize the timing and type of therapeutic combinations, and minimize treatment-related adverse effects, thereby personalizing and enhancing treatment strategies for patients with resectable and borderline resectable HCC.
Novel Deep Learning Framework for Detection of Epileptic Seizures using EEG Signals
Authors: Mallick Sayani , Baths Veeky
Published: June 2023

Epilepsy is a chronic neurological disorder characterized by abnormal electrical activity in the brain, often leading to recurrent seizures. With approximately 50 million people worldwide affected by epilepsy, there is a pressing need for efficient and accurate methods to detect and diagnose seizures. Electroencephalogram (EEG) signals, which record the brain’s electrical activity, have emerged as a valuable tool in detecting epilepsy and other neurological disorders. Traditionally, the process of analyzing EEG signals for seizure detection has relied on manual inspection by experts, which is time-consuming, labor-intensive, and susceptible to human error. To address these limitations, researchers have turned to machine learning and deep learning techniques to automate the seizure detection process. In this work, we propose a novel method for epileptic seizure detection, leveraging the power of 1-D Convolutional layers in combination with Bidirectional Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU) and Average pooling Layer as a unit. The performance of the proposed model is verified on the Bonn dataset. Our proposed model offers significant advancements over existing approaches for the detection of epileptic seizures, particularly for 2, 3, 4, and 5-class classification tasks. To assess the robustness and generalizability of our proposed architecture, we employ 5-fold cross-validation. By dividing the dataset into five subsets and iteratively training and testing the model on different combinations of these subsets, we obtain robust performance measures, including accuracy, sensitivity, and specificity. We demonstrate the effectiveness of the proposed architecture in accurately detecting epileptic seizures from EEG signals by using EEG signals of varying lengths. The results indicate its potential as a reliable and efficient tool for automated seizure detection, paving the way for improved diagnosis and management of epilepsy.
A Computational Study on Structural and Thermal Behaviour of Disc Brake Rotors With Varying Design and Material
Authors: Borthakur Pragyan , Bahl Siddhant , Singh Siddharth
Published: June 2023

The disc brake rotors are designed to withstand both, Maximum possible deceleration (emergency braking) and a series of frequent braking cycles. A effective rotor design and superior heat dissipating material provide better performance during the braking mechanism. In this experiment, modified ventilated disk brake rotors are developed with holes and slots and the stress, deformation, heat flux and temperature distribution has been analysed. Designing of the Finite element models of the rotor are created with SolidWorks and simulated using ANSYS. Structural and thermal characteristics are compared with a reference disk brake rotor of the motorcycle (TVS Apache RTR180). It is found that the modified rotors outperform the conventional one in terms of stress generation, temperature distribution and deformation. Furthermore, this Analysis helps us to find out the best suited material for one of the proposed designs. This experiment provides us an insight of the structural and thermal characteristics of the geometrically modified rotor that can be used to upgrade and outperform the current disc brake rotor used in the motorcycle (TVS Apache RTR180).
Resilience Assessment in Urban Water Infrastructure: A Critical Review of Approaches, Strategies and Applications
Authors: Asghari Fatemeh , Piadeh Farzad , Egyir Daniel , Yousefi Hossein , Rizzuto Joseph P , Campos Luiza C , Behzadian Kourosh
Published: June 2023

Resilient urban water infrastructure (UWI) is essential to maintaining public health and safety in urban areas and preventing consistent disruptions. However, UWI is vulnerable to a wide range of shocks and stresses due to the complex nature and interdependency of its components. The primary objective of this study is to evaluate the advances in resilience assessment of UWI comprising water supply, stormwater, and wastewater systems. This assessment involves examining bibliometric analysis, developed frameworks to understand resilience concepts for infrastructure and society, strategies for improving resilience, and resilience indicators. The study findings indicate that resilience assessment has primarily been conducted in developed countries, highlighting the macroeconomic importance of UWI. Three major areas were identified for analysing resilience in UWI: system design, development of resilience concepts, and implementation of green infrastructure. It was also found that while resilience is commonly defined based on technical approaches, a more thorough understanding of resilience can be obtained through holistic approach. While strategies such as system upgrade, decentralisation, digitalisation, and nature-based solutions can enhance resilience in UWI, they may be insufficient to achieve all resilience indicators. To address the issue of proper comparison of different resilience options, comprehensive and qualified indicators and metrics should be extensively examined in future.
On the Stabilization of the Solution to the Initial-Boundary Value Problem for One-Dimensional Isothermal Equations of Viscous Compressible Multicomponent Media Dynamics
Authors: Prokudin Dmitriy
Published: June 2023

An initial-boundary value problem is considered for one-dimensional isothermal equations of the dynamics of viscous compressible multicomponent media, which are a generalization of the Navier--Stokes equations. We prove the stabilization of the solution to the initial-boundary value problem while the time tends to infinity, without simplifying assumptions for the structure of the viscosity matrix, except for the standard physical requirements of symmetry and positive definitenes.
Relationship Between the Mechanical Properties of an Irradiated Metal Alloy and the Mechanical Properties of the Irradiated Elements of the Alloy
Authors: Kizka Valeriy
Published: June 2023

In the article, we are trying to find a general law that describes the physical properties of a complex compound through the same physical properties of compound elements. For metal alloys operated under extreme conditions - neutron and proton irradiations and thermal heating, the mechanical properties of these alloys and their elements have been studied. It turned out that the ultimate tensile strength of tantalum alloys used in the design of space reactors can be expressed in terms of the weighted sum of the ultimate tensile strengths of its elements in the range of neutron doses: (0 - 0.96) displacement per atom (dpa) for Ta–10W alloy and (1.4 - 1.7) dpa for T–111 alloy with a neutron energy of more than 0.1 MeV. For tungsten binary alloys used in the design of fusion reactors, the Vickers hardness can also be expressed in terms of the weighted sum of the Vickers hardnesses of the alloy elements in the range of proton irradiation doses: (0 - 0.05) dpa for W-1%Re alloy, (0.05 - 0.2) dpa for W-3%Re alloy and (0.05 - 1) dpa for W-1%Ta with a proton energy of 1 MeV.
Racial and Sex Disparities in Resident Attrition in Orthopaedic Surgery
Authors: Haruno Lee S. , Chen Xi , Metzger Melodie , Lin Carol A. , Little Milton T.M. , Kanim Linda E.A. , Poon Selina C.
Published: June 2023

Background:

Studies have suggested that female individuals and individuals from backgrounds under-represented in medicine (URiM) are at increased risk of attrition during residency. This likely exacerbates the lack of diversity in our field. The aims of this study were to (1) characterize demographic composition in orthopaedic residency from 2001 to 2018 and (2) determine the race/ethnicity and identify any disparities.

Methods:

Demographic and attrition data from 2001 to 2018 were obtained from the Association of American Medical Colleges. Attrition data comprised the following categories: withdrawals, dismissals, and transfers to another specialty. Analysis compared demographic composition and determined attrition rates with subgroup analysis by race/ethnicity and sex.

Results:

From 2001 to 2018, female orthopaedic residents increased from 8.77% to 15.54% and URiM residents from 9.49% to 11.32%. The overall and unintended attrition rates in orthopaedic surgery were 3.20% and 1.15%, respectively. Among female residents, the overall and unintended attrition rates were 5.96% and 2.09% compared with 2.79% and 1.01%, respectively, in male residents. URiM residents had overall and unintended attrition rates of 6.16% and 3.11% compared with 2.71% and 0.83%, respectively, for their White counterparts. Black/African American residents had an attrition rate of nearly 10%. Female residents averaged 12.9% of all residents but 24% of those leaving orthopaedics. URiM residents were 10.14% of all residents but 19.51% of those experiencing attrition. In logistic regression models, female residents had a relative risk (RR) of 2.20 (p < 0.001) for experiencing all-cause attrition and 2.09 (p < 0.001) for unintended attrition compared with male residents. Compared with their White male counterparts, URiM residents had a RR for overall and unintended attrition of 2.36 and 3.84 (p < 0.001), respectively; Black/African American residents had a RR for the same of 3.80 and 7.20 (p < 0.001), respectively.

Conclusion:

Although female resident percentage has increased, orthopaedics continues to train fewer female surgeons than all other fields. Female and URiM residents in orthopaedic surgery are disproportionately affected by attrition. While recruitment has been the primary focus of diversity, equity, and inclusion efforts, this study suggests that resident retention through appropriately supporting residents during training is equally critical.
Outcomes of Reverse Total Shoulder Arthroplasty with Latissimus Dorsi Tendon Transfer for External Rotation Deficit
Authors: Hones Keegan M. , Rakauskas Taylor R. , Wright Jonathan O. , King Joseph J. , Wright Thomas W. , Werthel Jean-David , Schoch Bradley S. , Hao Kevin A.
Published: June 2023

Background:

Latissimus dorsi transfer (LDT) has been purported to restore motion in patients undergoing reverse shoulder arthroplasty (RSA) who have preoperative combined loss of forward elevation (FE) and external rotation (ER). This systematic review summarizes the available evidence for the functional outcomes and complications after RSA with LDT. Furthermore, the effect of implant design and whether a concomitant teres major transfer (TMT) was performed were studied.

Methods:

A systematic review was performed per Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We queried PubMed/MEDLINE, Embase, Web of Science, and Cochrane databases to identify articles reporting on LDT with RSA to restore ER. Our primary outcomes were ER, FE, Constant score, and complication incidence. Secondarily, we reported postoperative internal rotation (IR) and compared ER, FE, and Constant score based on lateralized versus medialized global implant design and whether concomitant TMT was performed.

Results:

Nineteen studies were evaluated; functional outcomes were assessed in 16 articles reporting on 258 RSAs (123 LDT, 135 LDT-TMT). Surgical indication was most commonly cuff tear arthropathy and massive irreparable cuff tear. Mean ER was −12° preoperatively and 25° postoperatively, FE was 72° preoperatively and 141° postoperatively. Mean postoperative Constant score was 65. Of 138 patients (8 studies) describing IR, only 25% reported a mean postoperative IR ≥L3. Subanalysis comparing lateralized versus medialized implants and whether TMT was concomitantly performed demonstrated no significant difference in postoperative ER, FE, and Constant score, nor preoperative to postoperative improvement in ER and FE. The complication rate was 14.1% (of 291 shoulders from 16 studies), including tear in the tendon transfer (n = 3), revision tendon repair (n = 1), nerve-related complication (n = 9), and dislocation (n = 9).

Conclusions:

RSA with LDT is a reliable option to restore motion, with a comparable complication rate with standard RSA. The use of medialized versus lateralized implants and whether the TM was concomitantly transferred may not influence clinical outcomes.

Level of Evidence:

Level IV. See Instructions for Authors for a complete description of levels of evidence.
Improving propagation of Echinacea purpurea and its content of some active compounds by using Tyrosine and Salicylic acid in vitro
Authors: Al-Amery Lamiaa K J. , Abdul-Qader Ziena M , Husni Huda S
Published: June 2023

The seed propagation is the predominant method of Echinacea propagation, which has been criticized for its time-consuming control over the separation factor and the uncertainty of pathogen-free plants produced by this method. The technology of tissue culture has provided multiple opportunities for the production of secondary metabolites continuously without being restricted to a specific season, due to the possibility of controlling the environmental conditions and the components of the nutrient medium needed by the plant. This study was conducted to investigate the effects of salicylic acid as elicitor and tyrosine as precursor on propagation and some secondary compounds production in coneflower in vitro. The result showed the superiority of 2 mg / liter SA over the other treatments, which gave the highest average number of branches formed reaching 33.6 branches / plant part, number of leaves 33.6 leaves/vegetable part, fresh 1.067g and dry 0.058g weights as well as echinacoside concentration  of 291.3427 μg / g DW. However, the treatment 100 mg/l tyrosine gave a maximum of average number of branches 11.80 branches / plant part, number of leaves 11.80 leaves/vegetable part, fresh and dry weight 0.152 and 0.023 g respectively. Concerning echinacoside value, its maximum 318.5203 μg / g DW was recorded with 150 mg/l tyrosine. From this study, we concluded that caffeic acid derivatives such as echinacosides are one of the main phytochemical components of Echinacea extracts. The system of cell culture is a tool for the large-scale, year-round culture of plant cells, so it is a continuous source for the production of active compounds