bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis of glass ionomer cement gels using tetraethylorthosilicate xerogels in presence of a polymeric matri
Authors:   Department of Biomaterials Science, Faculty of Dentistry, University of Chihuahua (UACH), Avenue University CP 31000 Chihuahua, Chih., Mexico, Mercado M. , Monreal H. ,   Department of Biomaterials Science, Faculty of Dentistry, University of Chihuahua (UACH), Avenue University CP 31000 Chihuahua, Chih., Mexico, Martinez C. ,   Institute of Engineering and Technology U.A.C.J. Avenue of Charro # 610 Cd. Juárez, Chihuahua México, Mata G. ,   Department of Biomaterials Science, Faculty of Dentistry, University of Chihuahua (UACH), Avenue University CP 31000 Chihuahua, Chih., Mexico, Pacheco R. ,   Department of Biomaterials Science, Faculty of Dentistry, University of Chihuahua (UACH), Avenue University CP 31000 Chihuahua, Chih., Mexico, López C. ,   Department of Engineering and Materials. La Salle University. Avenue Lómas de Majalca 1120, C.P. 31625 Chihuahua, Chih., Mexico, Sagarnaga D. ,   Department of Biomaterials Science, Faculty of Dentistry, University of Chihuahua (UACH), Avenue University CP 31000 Chihuahua, Chih., Mexico, Chacón J. ,   Research Center in Advanced Materials, S.C. (CIMAV), Avenue M. Cervantes 120, Industrial complex Chihuahua, Chihuahua CP 31136, Chih, Mexico
Published: February 2023

A matrix of galactopyranose, tetraethylorthosilicate xerogels were used to synthesize glass ionomer gels. The purpose was to produce gels of glass ionomer cement in the presence of a polysaccharide by means of the sol-gel method. The gels were characterized by scanning electron microscope, analysis for fractal dimension, energy dispersive X-ray and watershed segmentation method. According to the results, the gels were successfully synthesized with TEOS xerogels in the presence of a polymeric network in solution. Among other things, the peaks/µm2 count corresponding to the surface properties of the characterized gels have a normal distribution with ranges between 17 and 22 nm. Also, the analysis of fractal dimension that represents the similarity of the roughness of the surface of the gels has a value of 2.508.
The influence of Nd: YAG pulsed laser treatment on the structure, morphology and hardness of e.max ceram dental material
Authors:   Laser and Optronics Centre, Department of Physics, University of Engineering and Technology, Lahore, Pakistan, Rab A. , Siraj K. ,   Laser and Optronics Centre, Department of Physics, University of Engineering and Technology, Lahore, Pakistan, Naz S. ,   de’ Montmorency College of Dentistry, Lahore, Pakistan, Asghar H. ,   Azra Naheed Dental College, Lahore, Pakistan, Irshad M. ,   Laser and Optronics Centre, Department of Physics, University of Engineering and Technology, Lahore, Pakistan, Latif A. ,   Laser and Optronics Centre, Department of Physics, University of Engineering and Technology, Lahore, Pakistan
Published: February 2023

The use of ceramics in dentistry is increasing day by day owing to their more aesthetic look, better mechanical properties, and easy-to-fit approach. The material used in the study is IPS e.max Ceram by Ivoclar Vivadent which has been widely adopted as the ceramic of choice by many dentists as it is ideally suitable for the veneering of more opaque substructures. The study aims to elucidate the result of Nd: YAG pulsed laser irradiation at different numbers of pulses on structure, surface morphology, and hardness of e.max Ceram dental material. XRD shows the amorphous nature of the material before the laser irradiation, whereas the crystallinity in the material is slightly induced after the exposure of e.max Ceram with 150 laser shots. The surface morphology and hardness degradation are attributed to the swelling potential of the material and induced increase of the residual micro-stresses during laser irradiation. This technique could provide more ease for bonding and de-bonding of orthodontic brackets and might be used as a chairside tool.
Synthesis, characterization of GO-zinc oxide nanocomposites and their use as an adsorbent for the removal of organic dyes in industrial effluents
Authors:   Department of Chemistry, University of Sahiwal, Sahiwal, Pakistan, Rehman H. , Ali Z. ,   Department of Basic Sciences & Humanities, University of Engineering & Technology Lahore New Campus, Pakistan, Shahzady T. G. ,   Department of Chemistry, Lahore Garrison University, DHA Lahore, Pakistan, Zahra A. ,   Govt College for women, Jhang, Pakistan, Hussain H. ,   Department of Basic Sciences & Humanities, University of Engineering & Technology Lahore Narowal Campus, Pakistan, Anwar A. ,   Department of Basic Sciences & Humanities, University of Engineering & Technology Lahore New Campus, Pakistan, Latif M.S. ,   Department of Chemistry, Lahore Garrison University, DHA Lahore, Pakistan
Published: February 2023

In this investigation, GO-ZnO nanocomposites were synthesized by using hydrothermal method. The structure, morphology and optical properties of synthesized nanocomposites were analyzed through Fourier transformed infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electronic microscopy (SEM), and UV-Visible spectroscopy. The XRD pattern confirmed the formation of Graphene decorated with hexagonal ZnO with high crystallinity. SEM revealed that the graphene paternity image decorated ZnO uniformly. UV-Visible spectroscopy was utilized to study photocatalytic degradation of synthesized materials against rhodamine B and methyl blue dyes and good catalytic activity was observed for both samples. Graphene-ZnO nanocomposites showed higher catalytic activity than ZnO nanoparticles.
Synthesis and characterization of nanoparticles derived from chitosan-based biopolymer; their photocatalytic and anti-termite potential
Authors:   Department of Chemistry, University of Management and Technology, Lahore54770, Pakistan, Javed M. , Hussain S. ,   Department of Chemistry, Lahore Garrison University, Lahore, Pakistan, Riaz M. ,   Department of Chemistry, University of Sargodha, Sargodha-40100, Pakistan, Asghar A. ,   Department of Chemistry, DSNT, University of Education Lahore, Pakistan, Syed S. K. ,   Department of Basic Medical Sciences, School of Health Sciences, University of Management and Technology, Lahore, Pakistan, Barkaat S. ,   Department of Chemistry, Riphah International University, Faisalabad Campus, Pakistan, Suleman M. ,   Department of Chemistry, Riphah International University, Faisalabad Campus, Pakistan, Idrees M. A. ,   Department of Physics, Riphah International University, Faisalabad Campus, Pakistan, Ashraf F. ,   Department of Chemistry, University of Management and Technology, Lahore54770, Pakistan, Faizan M. ,   Department of Chemistry, University of Management and Technology, Lahore54770, Pakistan, Feroz F. ,   Department of Chemistry, University of Management and Technology, Lahore54770, Pakistan
Published: February 2023

Chitosan has been obtained from Labeo rohita fish scales by protonation. The nature of chitosan depends upon the stages of the compound extraction process. Chitosan-based nanoparticles (Ag/chitosan) were synthesized; they were characterized by FTIR and UVVisible spectroscopy. FTIR analysis confirmed the successful formation of Ag/chitosan hybrid. The synthesized hybrids were subjected to the photocatalytic activity evaluation and anti-termite activity. The results have shown excellent anti-termite activity. The effect of concentration of acetic acid and chitosan was also studied on the composite material for anti-termite activity. Ag/chitosan concentration was more effective than acetic acid concentration. Methylene blue as a standard dye was used to study its photodegradation. The synthesized hybrid material showed much enhanced photodegradation of dye as compared to individual components.
Effect of iron chlorine concentration on type of green synthezed iron oxides nanoparticles using pheonixdactylifera l leaves extract
Authors:   Lab. VTRS, Faculty of Technology, Univ. El-Oued, El oued 39000, Algeria, Labbi A. , Benhaoua B. ,   Lab. VTRS, Faculty of Technology, Univ. El-Oued, El oued 39000, Algeria, Ahmouda K. ,   Faculty of Exact Sciences, Univ. El-Oued, El oued 39000, Algeria, Meftah Y. ,   Lab. VTRS, Faculty of Technology, Univ. El-Oued, El oued 39000, Algeria, Benhaoua Kh. ,   Faculty of Exact Sciences, Univ. El-Oued, El oued 39000, Algeria
Published: February 2023

Iron oxide nanoparticles (NPs) were prepared by green synthesis process, using Pheonix Dactylifera. L. leaves ethanolic extractas polyphynols source and FeCl3 aqueous solution as precursor, where the volume ration was 1:2. The concentration of FeCl3 was varied as follow: (0.01, 0.02, 0.03 and 0.04M). To charactrizethe obtained iron oxide NPs, XRD, SEM, UV-VIS and FTIR techniques were used. XRD analyses show the existence of three essentials compounds of iron oxide NPs: maghemite phase, hematite phase and beta phase. While the grain size of these compoundswas varied in the ranges of 22.91-37.40nm, 20.41-31.32nm and 17.96-25.25nm respectively. SEM images analysis showed that all samples have spherical shaped particles. UV-VIS analysis showed that the variation of FeCl3 concentration hasdirecteffect on theband gap of the product which rangeedin the range 2.162-2.358eV, whereas FTIR study confirms the abundance of Fe-O bonds in all samples.
Componentes clínicos associados aos cuidados de enfermagem a crianças e adolescentes com doença renal crônica
Authors: Santos Pennafort Viviane Peixoto dos , Queiroz Maria Veraci Oliveira
Published: February 2023

Objetivou-se discutir os componentes clínicos associados às necessidades de cuidados a crianças e adolescentes acometidos de doença renal crônica em tratamento dialítico. Estudo descritivo, realizado em uma clínica especializada vinculada ao Sistema Único de Saúde, na cidade de Fortaleza. Foram avaliados 33 prontuários quanto à identificação, causa da insuficiência renal crônica, peso, comorbidades e tratamento. Houve um predomínio do sexo feminino (60,6%), as principais causas foram as glomerulopatias (39,4%), seguidas das uropatias (36,4%), 51,5% apresentavam peso ≤ P3. As comorbidades mais frequentes foram hipertensão e cardiopatia. A peritonite (30,3%) foi a complicação mais comum na diálise peritoneal, e a anemia (39,4%) na hemodiálise. Pacientes em diálise peritoneal apresentaram níveis hematológicos e bioquímicos mais adequados. Os cuidados de enfermagem incluíram monitoramento dos exames, supervisão direta ao paciente e ações educativas relacionadas à prevenção de infecção.
Percepções de enfermeiros sobre orientações realizadas em Unidade de Terapia Intensiva Neonatal
Authors: Oliveira Kezia de , Orlandi Márcia Helena Freire , Marcon Sônia Silva
Published: February 2023

Estudo descritivo exploratório realizado em Maringá/PR/BR objetivou identificar as orientações oferecidas às famílias de recém-nascido na Unidade de Terapia Intensiva Neonatal na percepção dos próprios enfermeiros. Os dados foram coletados de novembro a dezembro/2009, com 16 enfermeiros atuantes nestas unidades, por meio de questionário autoaplicável constituído por questões abertas. Os resultados mostram que os enfermeiros reconhecem que as orientações fornecidas são insuficientes para atender as necessidades dos familiares e objetivam: diminuir a ansiedade e estresse, manter a segurança e funcionamento do serviço, encorajar o vinculo mãe e filho, confortar a família. Focam entre outros aspectos, o funcionamento do setor, no que se refere às rotinas e equipamentos, evolução do tratamento clínico e estado geral do recém-nascido, procedimentos e cuidados de enfermagem, aleitamento materno e suporte emocional aos pais. A comunicação entre a enfermagem e os familiares é imprescindível para que o cuidado seja efetivo e eficaz.
Alterações estruturais numa Instituição de Longa Permanência para Idosos visando prevenção de quedas
Authors: Santos Silvana Sidney Costa , Vidal Danielle Adriane Silveira , Gautério Daiane Porto , Silva Marília Egues da , Rosales Rita Arim , Pelzer Marlene Teda
Published: February 2023

O objetivo deste estudo foi propor alterações na estrutura física de uma Instituição de Longa Permanência para Idosos visando à prevenção de quedas nos residentes. Pesquisa-ação realizada no Rio Grande do Sul, Brasil, entre agosto de 2009 e junho de 2010. Participantes foram pesquisadoras, administradores e demais profissionais de nível superior. A coleta dos dados ocorreu através de seminário/reunião e entrevista semi-estruturada. Verificou-se o distanciamento entre o atendimento preconizado pela Resolução da Diretoria Colegiada Nº 283, de 26 de Setembro de 2005 e a Resolução No94, de 31 de Dezembro de 2007 da Agência Nacional de Vigilância Sanitária e a capacidade real de atendimento. A identificação de demandas emergentes do processo de trabalho com os idosos possibilitou a adoção de ações coletivas orientadas para a prevenção de quedas.
Enfermagem e Saúde do Trabalhador: análise dos grupos de pesquisa
Authors: Godinho Marluce Rodrigues , Greco Rosângela Maria , Gonçalves Ângela Maria Corrêa
Published: February 2023

A Saúde do Trabalhador é uma área da Saúde Pública pesquisada desde tempos remotos. O presente estudo consiste em uma pesquisa documental de análise quantitativa, que teve como objetivo analisar e discutir os grupos de pesquisa do Brasil voltados para a saúde do trabalhador, em particular os da enfermagem. Realizada através do acesso ao site do diretório de grupos de pesquisa do Conselho Nacional de Desenvolvimento Científico e Tecnológico, teve como resultado a identificação de 188 grupos, sendo 41 da enfermagem. A análise revelou uma concentração na região Sudeste do país, maioria pesquisadores do sexo feminino, com participação expressiva dos estudantes. Os temas mais abordados nos grupos foram: condições de trabalho, ergonomia, saúde mental, segurança e qualidade de vida dos trabalhadores, evidenciando que a preocupação com os agravos à saúde advindos do trabalho vem sendo pesquisada visando a uma melhoria da atenção à saúde dos trabalhadores.
Estratégias que colaboram na independência fisica e autonomia do idoso hospitalizado
Authors: Prochet Teresa Cristina , da Silva Maria Júlia Paes
Published: February 2023

O objetivo da pesquisa foi revelar as estratégias identificadas pelos graduandos e profissionais de saúde que colaboram na promoção, manutenção ou maximização da autonomia e da independência física do idoso hospitalizado. Estudo de campo, quantitativo-descritivo e exploratório desenvolvido no interior paulista com 117 graduandos e profissionais de saúde que participaram da capacitação em comunicação não-verbal em gerontologia. Os resultados foram organizados e agrupados em três grupos: relacionados aos conhecimentos técnicos (63,2%); relacionados aos valores éticos (30,7%); relacionadas à comunicação (27,4%). Conclui-se que os participantes identificaram uma ou mais estratégias que pudesse favorecer a independência e a autonomia do idoso, ficando nítido que a importância do conhecimento técnico e gerontológico foi a condição que mais colaborou nessa identificação.
Caracterização de pacientes pediátricos asmáticos atendidos em um centro de saúde de Fortaleza
Authors: da Silva Sabrina Ferreira , Monte Alana Santos , da Costa Camila Chaves , Joventino Emanuella Silva , Gomes Ana Lúcia Araújo , Ximenes Lorena Barbosa
Published: February 2023

Objetivou-se caracterizar o perfil de pacientes pediátricos asmáticos usuários de um Programa de Atenção Integrada à Criança com Asma; verificar associações entre as crises asmáticas, presença de animais no domicílio e ocorrência do aleitamento materno. Estudo retrospectivo, documental, quantitativo que analisou 152 prontuários de crianças asmáticas do programa. A maioria das crianças estudadas era do sexo masculino (91–59,9%) e possuía idade maior que cinco anos (80–53%), cujas residências possuíam quatro moradores (45–39,8%), identificando-se 53 (34,2%) fumantes. Havia animais dentro do domicílio da maioria das crianças que apresentaram menos de duas (35–33%) e mais de duas (9–8,5%) crises asmáticas semanais. Verificou-se ocorrência de asma entre crianças que receberam leite materno (41–34,4%). Ressalta-se a importância do Programa de Atenção Integrada à Criança com Asma para a promoção da saúde infantil.
Cuidado ao adolescente na atenção primária: discurso dos profissionais sobre o enfoque da integralidade
Authors: Queiroz Maria Veraci Oliveira , de Lucena Nájori Bárbara Ferreira , Maia Brasil Eysler Gonçalves , Gomes Ilvana Lima Verde
Published: February 2023

Objetivou-se analisar o discurso dos profissionais sobre o cuidado ao adolescente na atenção primária, identificando o conhecimento e as ações no enfoque da integralidade. Pesquisa qualitativa com pressupostos do Discurso do Sujeito Coletivo. Realizada entrevista com 11 profissionais de saúde de Unidades Básicas de Saúde da Família de Fortaleza-CE-Brasil. Na análise, os discursos foram agrupados em dois temas: Percepção do cuidado ao adolescente na atenção básica; Conhecimento dos profissionais sobre as ações de saúde ao adolescente e a integralidade. Os profissionais consideraram lacunas nas ações e ausência de direcionamento de atividades para os adolescentes; enfatizaram que a busca majoritária de adolescentes pelo serviço ocorre em situações de agravos de saúde, gestação e imunoprevenção. Observaram-se carências de conhecimentos sobre as políticas para o atendimento aos adolescentes. É necessário, portanto, direcionamento de ações para esta população, incluindo capacitação dos profissionais.
Oficinas de promoção de saúde com adolescentes: relato de experiência
Authors: Almeida Janaína Rocha de Sousa , Oliveira Nancy Costa de , Ferreira Moura Escolástica Rejane , Aragão Sabóia Vicente de Paulo , Mota Maria Vaudelice , Maciel Pinho Luciana Gonçalves
Published: February 2023

A necessidade de desenvolvimento de ações direcionadas a saúde dos adolescentes tornou-se imperativa diante da expressividade destes em relação ao contingente populacional, assim como sua significância em termos de geração futura. Objetiva-se relatar o trabalho de educação em saúde com adolescentes, realizado por meio de oficinas, com vistas à promoção da saúde. Estudo descritivo referente a atividades do Programa em Educação para o Trabalho em Saúde (PET Saúde), realizada de outubro a dezembro/ 2009. As oficinas ocorreram em escola estadual de Fortaleza-CE. Os temas trabalhados, sugeridos pelos adolescentes, foram: Sexualidade, drogas, violência, saúde do adolescente. Evidenciou-se a necessidade de adoção de práticas educativas de caráter dialógico com ativa participação dos adolescentes para que estes se sintam sujeitos, co-responsáveis por sua saúde e melhoria em sua qualidade de vida. Destacou-se a importância da articulação com as escolas e do trabalho intersetorial e mul
Avós e netos no século XXI: autoridade, afeto e medo
Authors: Paula Flávia Viana de , Silva Maria Josefina da , Bessa Maria Eliana Peixoto , de Morais Geridice Lorna Andrade , Marques Marília Braga
Published: February 2023

As mudanças ocorridas nas famílias trouxeram para o interior dos lares brasileiros modificações das relações entre avós e netos. Objetivou-se conhecer os discursos dos idosos quanto às relações intergeracionais quando criança e hoje; e identificar as mudanças das relações intergeracionais percebidas pelo idoso no contexto da família atual e de seus antecedentes. Estudo descritivo com abordagem qualitativa realizado no município de Fortaleza. A amostra foi composta por 12 idosos, sendo utilizada a técnica de entrevista para coleta dos dados. Para organização dos dados utilizou-se o Discurso do Sujeito Coletivo. A partir dos discursos formulados, percebeu-se que houve mudanças na relação entre avós e netos. Antigamente, havia um bom relacionamento entre avós e netos, com regras claras. Atualmente há uma série de conflitos entre eles, dentre os quais se destaca a perda da autoridade, do afeto e do medo.
Representing Harmonious Society and Good Government as Portrayed in Confucius (2010) Movie by Hu Mei
Authors: Faqih Ahmad
Published: February 2023

Confucianism strongly emphasizes the principles of humanism, morals and ethics to guide humanity in realizing the meaning and purpose of life. More broadly, the principles of Confucianism about humanism, morality will form good social relations and create a peaceful and prosperous life. This article tries to figure out the significance relationship between society and government in creating peaceful human life. As in Confucianism peace itself is created through harmonious social relations in plural social conditions and under good governance. It is important to understand the concept of harmonious society as taught by Confucius by looking at the practice of community relations and a government. The findings of this study are a condition of a harmonious society will be formed when the authorities emphasize the principles of the teachings of humaneness, morality and ethics in regulating government and society. Mutual understanding between government and society through non-exclusionary relationship is also an indicator in achieving harmony and peaceful life.Konfusianisme sangat menekankan prinsip-prinsip humanisme, moral dan etika untuk membimbing umat manusia dalam mewujudkan makna dan tujuan hidup. Secara lebih luas, prinsip-prinsip Konfusianisme tentang humanisme, moralitas akan membentuk hubungan sosial yang baik dan menciptakan kehidupan yang damai dan sejahtera. Artikel ini mencoba untuk mengetahui signifikansi hubungan antara masyarakat dan pemerintah dalam menciptakan kehidupan manusia yang damai. Seperti dalam Konfusianisme, perdamaian itu sendiri tercipta melalui hubungan sosial yang harmonis dalam kondisi sosial yang plural dan di bawah pemerintahan yang baik. Penting untuk memahami konsep masyarakat harmonis yang diajarkan oleh Konfusius dengan melihat praktik hubungan masyarakat dan pemerintahan. Temuan penelitian ini adalah kondisi masyarakat yang harmonis akan terbentuk ketika penguasa menekankan prinsip-prinsip ajaran kemanusiaan, moralitas dan etika dalam mengatur pemerintahan dan masyarakat. Saling pengertian antara pemerintah dan masyarakat melalui hubungan non-eksklusif juga merupakan indikator dalam mencapai kehidupan yang rukun dan damai.
Efektivitas Pemanfaatan Aplikasi Tik Tok Sebagai Media Pembelajaran Jarak Jauh Dalam Meningkatkan Kemampuan HSKK Peserta Didik
Authors: Marsuki Ria Riski , Sukma Sukma , Naqiyah Mardhiyyatin
Published: February 2023

Penelitian ini merupakan salah satu upaya dalam memaksimalkan proses pembelajaran jarak jauh yang tengah berlangsung di masa pandemi. Tujuan penelitian ini adalah untuk menganalisis efektivitas pemanfaatan aplikasi tiktok sebagai media pengumpulan tugas dalam meningkatkan kemampuan HSKK peserta didik. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif dengan menggunakan instrumen HSKK yang dilaksanakan secara online. Desain penelitian yang akan digunakan adalah pretest-posttest design dengan memberikan tugas pada peserta didik dan mengunggah menggunakan media aplikasi Tik Tok. Hasil dalam penelitian ini adalah menunjukkan bahwa pada masa pandemik kemampuan belajar siswa menurun sehingga test HSKK para peserta didik tidak menujukkan nilai yang maksimal tetapi setelah menggunakan aplikasi Tik Tok sebagai media dalam pengumpulan tugas peserta didik menujukkan adanya peningkatan nilai test HSKK. Hal ini ditandai dengan nilai skor HSKK peserta didik yang meningkat sebanyak 19 persen selama pemberian tugas menggunakan aplikasi Tik Tok. Oleh karena ini dapat disimpulkan bahwa pemanfaatan aplikasi Tik Tok cukup efektif sebagai media pembelajaran jarak jauh untuk meningkatkan kemampuan HSKK peserta didik. This study aims to analyze the effectiveness of TikTok as a medium for collecting assignments in improving students' HSKK abilities. The method used in this study is a quantitative method using the HSKK instrument, which is carried out online. The research design used is a pretest-posttest design by giving assignments to students and uploading them using TikTok. The results show that during the pandemic, students' learning abilities decreased so that the HSKK test does not show the maximum value, but after using the TikTok application as a medium in collecting student assignments, it shows an increase in the HSKK test score. This is indicated by the students' HSKK scores which increases by 19 per cent during the assignment using TikTok. Therefore, it can be concluded that TikTok can be used as a distance learning medium to improve students' HSKK learning abilities.
The epigenetic EZH2/H3K27me3 axis modulates lactotroph tumor cell proliferation
Authors: Zlocowski N , Sosa L d V , De la Cruz-Thea B , Guido C B , Martín M G , Mukdsi J H , Torres A I , Petiti J P
Published: February 2023

Interest in epigenetics has gained substantial momentum as a result of their identified role in the regulation of tumor progression as well as their ability to pharmacologically target genes. Pituitary neuroendocrine tumors (PitNETs) tend to be inactivated via epigenetic modification, and although emerging evidence has suggested a role for epigenetic factors in PitNET tumorigenesis, the degree to which these factors may be targeted by new therapeutic strategies still remains poorly understood. The objective of the present study was to examine the participation of the EZH2/H3K27me3 axis in the proliferation of lactotroph tumor cells. We demonstrated that the levels of EZH2 and H3K27me3 were increased in murine experimental prolactin (PRL) tumors with respect to a control pituitary, in contrast with the low p21 mRNA levels encountered, with an H3K27me3 enrichment being observed in its promoter region in a GH3 tumor cell. Furthermore, specific EZH2/H3K27me3 axis inhibition blocked the proliferation of primary tumor cell culture and GH3 cells, thereby making it an attractive therapeutic target for PRL PitNETs.
Аналітична теорія плазмонних ефектів у стрижнеподібних металевих наночастинках. Модель еквівалентного сфероїда
Authors: Korotun A.V. , Karandas Ya.V. , Reva V.I.
Published: February 2023

В рамках моделi еквiвалентного витягнутого сфероїда отримано аналiтичнi вирази для поляризовностей стрижнеподiбних металевих структур, що дозволило суттєво спростити розрахунки їх оптичних характеристик. Розраховано частотнi залежностi поперечної та поздовжньої компоненти тензора поляризовностi, а також перерiзiв поглинання i розсiювання для витягнутих сфероїдiв, цилiндрiв та сфероцилiндрiв. Проаналiзовано змiну положень максимумiв уявної частини компонентiв тензора поляризовностi, перерiзiв поглинання та розсiювання при змiнi розмiрiв, форми I матерiалу наночастинок. Встановлено, що положення поперечного поверхневого плазмонного резонансу в стрижнеподiбних наночастинках форм, що розглядаються, практично нечутливе до змiни величин пiвосей, у той час як збiльшення аспектного вiдношення приводить до “червоного” зсуву поздовжнього поверхневого плазмонного резонансу. Показано, що використання моделi еквiвалентного витягнутого сфероїда дає задовiльне узгодження мiж результатами розрахункiв та експериментальними даними для частот поздовжнього поверхневого плазмонного резонансу, не потребуючи застосування складних обчислювальних методiв.
Поляризовність металевої напівсферичної наночастинки на діелектричній підкладинці
Authors: Korotun A.V.
Published: February 2023

За умови нормального падiння свiтла на дiелектричну пiдкладинку, у квадрупольному наближеннi визначено частотну залежнiсть дипольної поляризовностi металевої пiвкулi, розташованої на дiелектричнiй пiдкладинцi. Отримано спiввiдношення для ефективного часу релаксацiї, а також для частот невидимостi та поверхневого плазмонного резонансу. Дослiджено еволюцiю плазмонних резонансiв при змiнi радiусiв пiвкуль. Обговорюються причини появи двох резонансiв уявної частини поляризовностi та вiдмiнностей величини максимумiв уявної частини поляризовностi пiвкуль рiзних металiв. Пояснюється характер i положення резонансiв уявної частини поляризовностi для острiвцiв алюмiнiю. Наводяться рекомендацiї стосовно створення частотної смуги невидимостi поблизу металевого наноострiвця.
Equity in Receipt of a Lumbar Puncture for Febrile Infants at an Academic Center
Authors: Taft Maia , Garrison Jessica , Fabio Anthony , Shah Neema , Forster Catherine S.
Published: February 2023

Background

The evaluation of febrile infants ≤60 days of age is often guided by established protocols. However, structural racism and physicians’ implicit bias may affect how such clinical guidelines are applied.

Objective

To determine the association between self-identified race, insurance type, ZIP code–based median household income (MHI) and receiving a guideline-concordant lumbar puncture (GCLP) in febrile infants.

Methods

This was a 3-year retrospective cross-sectional study of all febrile infants ≤60 days old presenting to a children’s hospital from 2015 to 2017. GCLP was defined as obtaining or appropriately not obtaining a lumbar puncture as defined by the hospital’s clinical practice guideline, which recommended performing a lumbar puncture for all febrile infants ≤60 days of age unless an infant was >28 days of age and had respiratory syncytial virus-positive bronchiolitis. Univariate analyses were used to identify variables associated with receiving a GCLP. Variables with a P < .1 were included in a multivariate logistic regression with race, MHI, and insurance type.

Results

We included 965 infants. Age (adjusted odds ratio, 0.95; 95% confidence interval, 0.94–0.97) and temperature on arrival (adjusted odds ratio, 1.36; 95% confidence interval, 1.04–1.78) were significantly associated with receipt of a GCLP. Self-identified race, insurance type, and MHI were not associated with receiving a GCLP.

Conclusion

Receipt of a GCLP was not associated with race, MHI, or insurance type. As recent national guidelines change to increase shared decision-making, physician awareness and ongoing assessment of the role of factors such as race and socioeconomic status in the clinical evaluation and outcomes of febrile infants will be critical.
‘Chinese virus’
Authors: Wang Peiwen , Catalano Theresa
Published: February 2023

Since the emergence of COVID-19, researchers have documented an increase in cases of anti-Asian racism and hate crimes. Research shows a possible connection between the ‘Chinese virus’ discourse of the Trump administration and violence in society (Arora and Kim 2020:387). Drawing from critical discourse studies we explore 2,071 comments from one YouTube video which documents anti-China rhetoric by the Trump administration in order to understand the underlying strategies commenters relied on in their reproduction and defence of this discourse. Findings show the trickle-down influence of Trump's discourse on YouTube commenters, but also ways in which social media created a platform for building solidarity among racist groups, as well as sites of resistance. The authors conclude by suggesting more studies attend to this type of discourse and work to educate people on how to counter it.
Implicit and Explicit Language Attitudes: Mapping Linguistic Prejudice and Attitude Change in England Robert M. McKenzie and Andrew McNeill (2023)
Authors: Lukač Morana
Published: February 2023

Implicit and Explicit Language Attitudes: Mapping Linguistic Prejudice and Attitude Change in England Robert M. McKenzie and Andrew McNeill (2023) New York and London: Routledge, 194 pp.
Akira Goto, Cultural Astronomy of the Japanese Archipelago: Exploring the Japanese Skyscape
Authors: Sekimori Gaynor
Published: February 2023

Akira Goto, Cultural Astronomy of the Japanese Archipelago: Exploring the Japanese SkyscapeRoutledge Studies in the Early History of Asia. London and New York: Routledge, 2021. Paperback, 156 pp. ISBN: 9780367407988. £46.99.
Tomislav Bilic?, Land of the Solstices: Myth, Geography and Astronomy in Ancient Greece
Authors: Hannah Robert
Published: February 2023

Tomislav Bilic?, Land of the Solstices: Myth, Geography and Astronomy in Ancient GreeceBAR International Series 3039. Oxford: BAR Publishing, 2021. 212 pp. ISBN: 9781407358628. £49.00.
Making metal work
Authors: Hoad Catherine , Moore Ian
Published: February 2023

This article explores lived experiences of heavy metal careers in Aotearoa/New Zealand as bands navigate shifting metal markets, and rapidly expanding digital landscapes for the music industry more generally. Drawing from interviews conducted with four established metal bands in Aotearoa—Blindfolded and Led to the Woods (Otautahi/Christchurch), Shepherds Reign (Tamaki Makaurau/Auckland), Stälker and Bulletbelt (both from Te Whanganui-a-Tara/Wellington)—we explore whether metal musicians are able to make music into a viable career, and furthermore how the changing commercial and technological landscapes for metal might have also brought about differing ideas of the mainstream versus the underground, commerciality versus authenticity, and amateurism versus professionalism. Such binaries, these interviews show, continue to play a complex role in how musicians experience, or reject, metal as an entrepreneurial activity, where the coincidence of genre with geography, and metal’s long-held anti-commercial and anti-establishment discourses, influence career expectations and opportunities.
Pojęcie papieru wartościowego a tokeny cyfrowe
Authors:   Wydział Prawa i Administracji, Uniwersytet Gdański, Polska, Weiszewska Ewa
Published: February 2023

Dematerialisation of trading in securities has become an inseparable element of technological development. A consequence of this phenomenon is dematerialisation of securities. Therefore, the question arises whether a digital token may be recognized as a security. The above issue requires an analysis of the concept of a security in the context of national and EU regulations. It must be emphasised that Polish Civil Code does not define a security. For this reason, many doubts concerning validity of the numerus clausus principle arose.
The problem of formation and disposal of municipal solid waste in the Chuvash Republic
Authors: Novikov Alexander , Sumarukova Olga , Yakovleva Yulia
Published: February 2023

The increasing amount of municipal solid waste is a consequence of the rapid development of mankind, and methods of burial and storage of waste are no longer not only inefficient, but also do more harm than good. If in the future there are no trends to improve the existing situation, the landfills will be filled, and the accompanying negative impact that they have on the environment will only grow. In the absence of widespread availability of appropriate protection technologies, the entire natural environment is exposed to pollutants. One of the reasons for this situation is the ecological illiteracy of the population and the lack of a strong state ecological policy; there are many unauthorized dumps in the country. As a result, huge areas of land, which could be used for more useful purposes, accumulate waste and are depleted.
This article deals with the reclamation of a "small" landfill in the village of Alikovo. The gross volume of the released biogas was calculated and a brief description of the technical and biological stages — the main stages of reclamation and the further post-reclamation existence of the landfill was presented, the reasons for choosing this particular reclamation process were explained. The reclamation technology proposed by the authors will ensure the restoration of land for the further creation of recreational zones.
By studying and analysing various sources, the author concluded that the problem of solid municipal waste, and specifically the landfills to which it is sent for burial, is one of the most important problems at the moment, both in Chuvashia and in the whole of Russia
Investments of individuals in gold
Authors: Grosheva Nadezhda , Grosheva Ekaterina , Boltenkov Ivan , Fan Xueqiao
Published: February 2023

This article is devoted to the analysis of such a popular investment asset as gold — in coins, jewelry and bars. In times of uncertainty, individuals use various assets to preserve their savings. Until recently, gold in bullion as an investment was an unattractive asset because a private investor paid VAT when buying a bullion bar, which could not be refunded, and when selling it he sold it for the bank's net price. However, in March, given temporary closure of exchange operations and private individuals' need to keep their savings, VAT on such an asset was abolished at the legislative level, which caused a rush demand for bullion purchases. There was no less rush demand for jewelry, although its profitability as an asset in the medium term is not evident. This study provides an analysis of gold bullion, jewelry and impersonal metal accounts as an investment asset, describes the risks and opportunities of such investments.
Vulnerability assessment of data transmission protocols in information systems
Authors: Rudzeyt Oleg , Dobrzhinskii Uriy , Titanov Vladislav
Published: February 2023

During the period of rapid digitalization of society, modern technologies have become firmly established in many areas of the economy. Modern enterprises do not conduct business activity without modern means of digital communications, which allow the exchange of information both between the objects of the enterprise and the transmission of data to users outside the external perimeter of the enterprise network. The enterprise infrastructure may have information vulnerabilities that attackers use to intercept data, attack enterprise systems, or to attack the devices of system users. Such attacks can lead to hardware failures, service failures, software errors, data loss, etc. According to statistics from Positive Technologies in 2021, 33 % of Russian companies were exposed to cyberattacks using the vulnerability of the company's data transmission protocols, and 55 % of major global companies have serious vulnerabilities in the perimeter of the system. This article discusses the most common data transmission protocols that are used in automated process control systems. Types of vulnerabilities of protocols of various levels of the OSI model are given. The mechanisms of vulnerability implementation and methods of analyzing enterprise network traffic are considered. The statistics of impacts on data transmission protocols in various industries of their use, as well as statistics on violations of information security regulations in companies are provided. The article is based on the task of determining the signs of impacts and assessing the security of protocols in order to further develop solutions for measures to counteract the impact on the system of companies.
Modern risks and threats for the Russian information technology industry in 2020–2022
Authors: Pashchenko Denis , Komarov Nikolay
Published: February 2023

An analysis of the experience of going through crises and the rapid adaptation of IT enterprises to the large-scale challenges of the global competitive environment allows us to declare a special competitive strength for high-tech sectors of the economy — the management of timely changes in business. Modification of Michael Porter's competitive forces model to include this new competitive force allows IT companies to more accurately plan business development and manage change proactively. The article provides an analysis of the risks, threats and experience of various crises in the IT industry in 2020–2022 from the COVID-19 epidemic to the unprecedented growth of anti-Russian sanctions and the withdrawal of American technology companies from Russia. The article draws conclusions about the complex relationship between the IT industry and significant industries that have begun digital transformation, the effectiveness of state support measures for the economy, and the possibilities of import substitution in the Russian IT technology market.
Stakeholders' appraisals of the school history curriculum in Zambia on social media
Authors: Mazimba M , Kabombwe Y
Published: February 2023

This study attempted to capture stakeholders' views on the school history curriculum in Zambia. Stakeholders' views are an important aspect of curriculum development. Social media such as Facebook and WhatsApp have become platforms a section of Zambians uses to challenge the traditional education system. The study used a qualitative approach design by monitoring the e-comments of focus groups (teachers' forums) and individuals on Facebook on what some Zambians thought about the history curriculum. Social media was used because it provides an environment that removes traditional inhibitions of authority figures and meets people in their comfort zone, making them free to discuss otherwise sensitive topics. This research revealed that various stakeholders found the curriculum content irrelevant to the future they envisioned for themselves. The study additionally found that people in Zambia had been side-lined in discussions concerning curriculum development for history. People felt that they had been placed into the straitlaced role of consumers, and their feedback has never been sought. The study recommends revisiting the school history curriculum content to reflect stakeholders' needs and apply it to society. Curriculum developers should also pay attention to the voices of stakeholders in society.
MİLLÎ MÜCADELE’DE KULLANILAN İLETİŞİM KAYNAKLARI: URFA SAVUNMASI ÖRNEĞİ
Authors: AKALIN İbrahim Engin
Published: February 2023

Millî Mücadele dönemi iletişim bilimi açısından incelendiğinde tarihsel olarak belli bir zaman diliminde yaşanmış geçmiş olay bilgisinden ziyade günümüze de ışık tutan bir veri analizini ortaya çıkarmaktadır. İletişim kanallarının kontrolü ve kaynak çeşitliliğinin mücadeleye etkisi, taraflar için taşıdığı önemin yanı sıra sonuca ulaşmada oynadığı rol oldukça dikkate değerdir. Mücadeledeki iletişim faaliyetleri, daha çok tarih çalışmaları çerçevesinde olayları irdeleyen belgeler niteliğinde ele alınmıştır. İletişim alanında ise konuya dair çok sınırlı sayıda araştırma bulunmaktadır. Oysa ki işgal kuvvetleri ile Kuvayı Milliye arasındaki mücadele süreci, iletişim kaynaklarının kullanımı ile şekillenmiştir. Bu nedenle Millî Mücadele’nin iletişim bağlamında araştırılması sebep ve sonuçların daha iyi anlaşılmasını ve yaşanan süreçlerin güncel gelişmeler ışığında olgusal açıdan yeniden değerlendirilmesini kolaylaştıracaktır.   Millî Mücadele’de kullanılan iletişim kaynakları Urfa Savunması örneğinde tarihsel araştırma yöntemiyle incelenmiş, literatür taraması sonucunda ulaşılan veriler sınıflandırılarak bir sentez oluşturulmuştur. Oluşturulan sentez tarihsel örgüyle olay-kanıt ilişkisi ekseninde sunulmuştur. Çalışmamızın temel amacı konuya dair temel oluşturarak ilgili araştırmalar için bir kaynak sağlamaktır. Bu nedenle incelemenin genel bir çerçeve oluşturması adına Urfa’nın işgali sırasında işgal kuvvetleri ve yerel direnişçilerin ne şekilde iletişim sağladığı üzerine yoğunlaşılmıştır.
TURİZMİN GAYRİ SAFİ MİLLİ HASILA İÇİNDEKİ PAYI
Authors: AKTI Selvi KURT
Published: February 2023

Kültürel, sosyal ve ekonomik bağlamda bakıldığında turizm, gelişmekte olan ülkelerin ekonomisinin önemli hizmet sektörlerinden biri olarak kabul edilmektedir. Turizm geliri, denge açığının kapatılmasındaki rolü, ihracata benzer şekilde ülkeye döviz girdisi getirmesi açısından en önemli unsurlardan biri gibi görünmektedir. Turizm, gelişmiş ve gelişmekte olan ülkeler için en önemli gelir kaynaklarından biridir. Dünya ülkeleri açısından bakıldığında turizm birçok ülkenin ekonomisini önemli ölçüde etkileyen ekonomik dallardan biridir. Turizm faaliyetlerinin gelirlerini gelişmekte olan ülkeler açısından değerlendirecek olursak, birçok ekonomik göstergeyi olumlu yönde etkilemesi ve bölge halkına refah düzeyi yüksek bir yaşam tarzı getirme niteliği açısından da önem taşımaktadır. Birçok ülkede turizm kalkınma aracı olarak görülmektedir. Hizmet sektörü olarak iyi iş imkanlarına sahip olan turizm sektörü, iş imkanlarının artmasında çok önemli rol oynamaktadır. Turizm, ülkede yeni iş imkanları yaratarak bölgelerin dengeli kalkınmasını sağlamakta, bölgeler arasındaki gelişmişlik farkının en aza indirilmesine etki etmektedir. Turizm endüstrisinin ülke ekonomisinin kalkınmasında yarattığı olumlu etki, milli gelir büyümesini hızlandırması ile turizm endüstrisinin Türkiye ekonomisindeki konumu her geçen gün artmakta, bunun için politika oluşmasına ve uygulanmasına neden olmaktadır. Çünkü Türk ekonomisinin turizm politikasının temel amaçlarından biri, dış ülkeler ile gerçekleşen alışveriş sonrası oluşan dış ödeme tablosundaki açığın bir kısmını dış turizm gelirlerinin desteğiyle telafi etmektir. Bu çalışmanın amacı, 2014-2022 döneminde toplam turizm gelirlerinin gelişiminin yanı sıra Türk turizminin Türkiye ekonomisindeki ekonomik gelişim göstergelerini yıllara göre izlemektir. Bu nedenle veri analizi yöntemi kullanılarak 9 yıl boyunca Türkiye ekonomisinde yıllık turizm geliri tablo ve grafiklerle analiz incelenmiştir.
Formulation of forensic and pathoanatomical diagnoses, selection, and coding of causes of death according to ICD-10, edited by Professor V.A. Klevno and Professor O.V. Zairat’yants
Authors: Chochlov Vladimir V.
Published: February 2023

The article analyzed the book Rules for the formulation of forensic and pathoanatomical diagnoses, selection, and coding of causes of death according to ICD-10, edited by Doctor of Medical Sciences, Professor Vladimir Aleksandrovich Klevno and Doctor of Medical Sciences, Professor Oleg Vadimovich Zayratyants.
The review aimed to provide an objective assessment of the information presented in a scientific publication and determine their value for science and practice.
The authors note that this publication is essentially a national guide for doctors in the Russian Federation on the formulation of forensic and pathoanatomical diagnoses, choice and coding of causes of death in accordance with the requirements of the 10th revision of the International Classification of Diseases (ICD-10), and issuance of a medical death certificate to improve statistics on population mortality. The authors noted that the manual contains unified rules for the formulation of forensic and pathoanatomical diagnoses, selection and coding of causes of death, registration of the medical death certificate in accordance with the provision of the Federal Law of November 21, 2011, No. 323-FZ On the Fundamentals of Protecting the Health of Citizens in the Russian Federation, requirements of ICD-10, and orders and guidelines of the Ministry of Health of Russia, and clinical and guidelines of the Russian Society of Pathologists and the Association of Forensic Experts.
With absolute certainty, the book will retain its practical significance for a long time. It complies with all regulatory requirements, significantly simplifies the work of a doctor, and may well become a reference book for a practicing specialist.