bluuebunny/crossref_metadata_2025 huggingface dataset:
Tribological properties of ZrN coatings deposited by magnetron sputtering in reactive and non-reactive mode
Authors:   Petroleum-Gas University of Ploieşti, Romania, Giagkas N. , Micu I. F. ,   Petroleum-Gas University of Ploieşti, Romania, Vizireanu S. ,   National Institute for Laser, Plasma and Radiation Physics, Romania, Vasile N. ,   National Institute for Laser, Plasma and Radiation Physics, Romania, Biţă B. I. ,   National Institute for Laser, Plasma and Radiation Physics, Romania, Sătulu V. ,   National Institute for Laser, Plasma and Radiation Physics, Romania, Mihai S. ,   Petroleum-Gas University of Ploieşti, Romania, Manta A. M. ,   Petroleum-Gas University of Ploieşti, Romania, Cursaru D. L. ,   Petroleum-Gas University of Ploieşti, Romania
Published: February 2023

Zirconium and zirconium nitride coatings were deposited via magnetron sputtering by using high-purity zirconium or zirconium nitride targets. As a particularity, the zirconium nitride coatings were deposited by using a ZrN target via non-reactive mode or by using a Zr target via reactive technique, in argon/nitrogen environment. Depending on the time deposition, coatings with different thicknesses (200, 500 and 1000 nm) have been obtained. Chemical and phase composition, thickness of the coating and morphology of the surfaces were investigated by highly sensitive X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and X-Ray diffraction (XRD). The wear tests have been performed by High Frequency Reciprocating Rig (HFRR). The wear scar diameters decrease with an increase of coatings thickness, while the friction coefficient for the coatings with 500 nm thickness revealed the lowest values for friction coefficients, for all type of coatings
Preparation of TiO2 bionic surperhydrophobic surface on AZ31 and it’s anti-corrosion properties
Authors:   School of Additive Manufacturing, Zhe Jiang Institute of Mechanical & Electrical Engineering, Hangzhou, China, 310053, Yu X. , Zhao M. ,   School of Additive Manufacturing, Zhe Jiang Institute of Mechanical & Electrical Engineering, Hangzhou, China, 310053, Li R. ,   School of Additive Manufacturing, Zhe Jiang Institute of Mechanical & Electrical Engineering, Hangzhou, China, 310053, Wang J. ,   School of Additive Manufacturing, Zhe Jiang Institute of Mechanical & Electrical Engineering, Hangzhou, China, 310053
Published: February 2023

Superhydrophobic surface containing TiO2 was prepared on the surface of AZ31 magnesium alloy by two-step method. The morphology and composition of the film were characterized by SEM, XRD and FT-IR. The physical and chemical stability of the film was investigated by friction and wear test and contact angle test under different conditions. In addition, self-cleaning performance and corrosion resistance of the film were studied. The results showed that the superhydrophobic surfaces have good resistance to ultraviolet light, acidic and alkaline liquids, which prove that good mechanical stability and chemical stability.
Preparation and evalution water resistance, mechanical and morpholgical characteristics of PVA/SiO2 nanocomposites for food industry applications
Authors:   College of Materials Engineering, Babylon University, Iraq, Sabr O. , Hussein A. ,   College of Materials Engineering, Babylon University, Iraq, Obaid M. ,   College of Materials Engineering, Babylon University, Iraq
Published: February 2023

Thin films prepared from Poly vinyl alcohol (PVA) and silica nanoparticles(SiO2 ) by using solvent casting method have been studied as potential packaging materials. PVA/ SiO2 nanocomposites were characterized by Fourier transform infrared (FT-IR), Scanning electron microscopy (SEM), Differential scanning calorimetry, atomic force microscopy (AFM), Water contact angle, Water absorption capacity ,Water solubility ,and mechanical properties. The results showed that the mechanical properties such as ( tensile strength, elongation at break ,modulus) increased with increasing nanoparticle content to7wt. % compared with pure PVA, while the mechanical properties decreasing with increasing SiO2 content to 9 wt. % , but it remains higher than the matrix material, also an increase in the crystallinity with addition 7wt. % from SiO2 which interpreted and supported the improvement of results of mechanical properties for nanocomposites PVA/SiO2, but Crystallinity decreased to 0.012 with increase SiO2 to 9 wt. %. The result of water contact angle showed the surface of nanocomposite films less hydrophilic. Result of FTIR showed that it does not create chemical bond between PVA and nanoparticles but only physical interaction. AFM measurements indicated a reduced the surface roughness with increase nanoparticles and was less roughness at percent 7wt. % SiO2 .However, the roughness is increased at 9 wt. % due to agglomerate the nanoparticles. The SEM results showed the good desperation between PVA and nanoparticles.
HYDROGEN GENERATION BY HYDROLYSIS OF NaBH4 WITH EFFICIENT Co-La-W-B CATALYST FOR PEM FUEL CELLS
Authors:   Department of Occupational Health and Safety, Siirt School of Health, Siirt  University, 56100 Siirt, Turkey, EKİNCİ A. , HOROZ S. ,   Department of Electrical and Electronics Engineering, Faculty of Engineering,  Siirt University, 56100 Siirt, Turkey, BAYTAR O. ,   Department of Chemical Engineering, Faculty of Engineering, Siirt University,  56100 Siirt, Turkey, ŞAHİN Ö.
Published: February 2023

In this study, Co-B based quaternary alloy catalysts were synthesized for use in NaBH4 hydrolysis. Lanthanum (La) and tungsten (W) metals were added to Co-B catalyst by chemical reduction method. The effect of metal content (La and W), NaBH4 concentration, NaOH concentration, catalyst amount and temperature parameters were investigated in NaBH4 hydrolysis. Activity results show that the hydrolysis reaction rate first increases and then decreases with increasing NaBH4 concentration as well as NaOH concentration. The activation energy of the hydrolysis for Co-La-W-B catalysts was calculated as 39.2 kJ / mol. The maximum value of hydrogen generation rate was 3280 ml / min. In terms of application, hydrogen produced in the presence of the Co-La-W-B catalyst was used in PEM fuel cell application. Average yield value according to power and ideal voltage and maximum power vaşue of the system were determined as 57%, 73% and 1.4 Watt, respectively. This original study demonstrates that the Co-La-W-B catalyst can be used as an ideal catalyst for PEM fuel cell applications.
TEMPERATURE DEPENDENT CHARACTERISTICS OF SrAl2O4:Dy 3+PHOSPHOR
Authors:   Department of Physics, Assam University, Silchar, 788011, India, TONGBRAM S. , SINGH S. D. ,   Department of Physics, NIT Manipur, 795001, India, TONGBRAM B. ,   Department of Physics, Manipur University, 795003, India, SHARMA B. I. ,   epartment of Electrical Engineering, IIT Bombay, 400076, India
Published: February 2023

We report the detailed temperature-dependent characteristics of Dy3+ doped SrAl2O4 phosphor. The phosphor synthesised using precipitation method was annealed at three different temperatures, specifically 800ºC, 900ºC, and 1000ºC. The three samples were analyzed using XRD, SEM, TEM, RAMAN, and FTIR. The observed photoluminescence emissions were consisting of peaks arising from the host SrAl2O4 as well as the dopant Dy3+. The crystallite sizes were found to be 27.22nm, 29.74nm, and 31.24nm, respectively, with the increase in annealing temperature. SEM, TEM images showed nearspherical, rod-like shapes of the crystals, and SAED confirmed the crystals were single-crystal. CIE analysis results showed that the colour coordinate was found to be very close to white colour in the three annealing temperatures, which is an advantage in the field of technology development.
ROLE OF POROUS NANOMATERIAL’S IN WATER PURIFICATION, ELECTRONICS, DRUG DELIVERY AND STORAGE: A COMPREHENSIVE REVIEW
Authors:   Department of Physics, G.S.S, GITAM University, Bengaluru, India, KRISHNA PRASAD N.V. , ANIL BABU T. ,   Department of Mathematics,GSS, GITAM University, Bengaluru, India, SARMA M. S. S. R. K. N. ,   Department of Statistics,Govt.College(A),Rajhamundry, India, RAMESH S. , NIRISHA K. , MATHEW T. , MADHAVI N.
Published: February 2023

Nanoporous materials and their study gained tremendous significance in view of their potential applications such as drug delivery, water purification, biosensing, electronics and storage etc. Based on their synthesis with required shape and size make them application oriented. Nanoporous materials are materials with pore size of hundred nanometres or less. They have inorganic or organic framework supporting regular porous structure. The pores in these materials are occupied with fluid. These materials represent a transition from atom to solid in which pores of uniform shape and diameter need to be obtained for them to be used in some applications. Nanoporous materials possess specific electric, optical and magnetic properties that make them highly potential in applications related to signal transmission, energy, biological applications, catalysis, gas storage and medicine. In spite of existing nanoporous by nature tailored materials can be produced with combination of polymers with different melting points. A nanoporous material with accurate pore sizes allow certain matter to pass through, while blocking others. In view of their tailored properties they find extensive applications at present and in near future. Keeping this in mind, an attempt was made to review the potential applications of these materials with more emphasis on water treatment and drug delivery reported in the last five years in a nut shell.
O vínculo como diretriz para a construção da integralidade na Estratégia Saúde da Família
Authors: Viegas Selma Maria da Fonseca , Penna Cláudia Maria de Mattos
Published: February 2023

O vínculo entre equipe Saúde da Família e a população adscrita é uma diretriz para a atenção integral. Estudo de casos múltiplos holísticos e qualitativo, fundamentado na Sociologia Compreensiva do Cotidiano, recorte de uma tese de doutorado, que objetivou compreender a construção das práticas de integralidade em saúde no trabalho cotidiano de equipes de Saúde da Família e de gestores de três municípios. Foram informantes 48 trabalhadores de saúde. Os resultados mostram o vínculo como diretriz essencial à consolidação da integralidade em saúde ao favorecer a participação do usuário como sujeito autônomo na produção da sua saúde. Entretanto, a rotatividade de profissionais interfere tanto na dinâmica do trabalho cotidiano como na construção de vínculo com as famílias, o que implica diretamente na consolidação local da Estratégia. Conclui-se que o vínculo deve ser uma prática coletiva e consolidada das equipes com a população na construção da integralidade na atenção à saúde.
Estresse e coping entre enfermeiros de unidade cirúrgica de hospital universitário
Authors: Guido Laura de Azevedo , Silva Rodrigo Marques da , Goulart Carolina Tonini , Kleinübing Raquel Einloft , Umann Juliane
Published: February 2023

Esse estudo identificou os estressores, o nível de estresse e as estratégias de enfrentamento utilizadas por enfermeiros de uma Clínica Cirúrgica de um Hospital Universitário. Trata-se de um estudo transversal cuja população foi composta por nove enfermeiras. Coletaram-se os dados, entre maio e junho de 2005, por meio do Formulário para Levantamento de Atividades Diárias e do Inventário de Estratégias de Coping. Verificou-se que as atividades relacionadas à administração de pessoal foram avaliadas como as mais estressantes. Evidenciou-se uma enfermeira em estado de alerta para alto nível de estresse, três em médio nível e cinco com baixo nível de estresse. Observou-se que a Resolução de Problemas foi o fator mais utilizado no enfrentamento do estresse. O conhecimento dos estressores e das formas de enfrentamento pode auxiliar no desenvolvimento de possíveis soluções para minimizar seus efeitos e tornar o cotidiano mais produtivo e menos desgastante.
Características de lesões de pé diabético e suas complicações
Authors: Silva Carla Luiza da , Moleta Cintia , Severo Emanoel , Gaspar Maria Dagmar da Rocha , Cavalheiro Mariane Antunes
Published: February 2023

O Diabetes Mellitus é um grupo de doenças metabólicas, sendo a terceira principal causa de morbimortalidade, envolvendo algumas complicações, deixando o paciente vulnerável. Os objetivos foram verificar a prevalência de amputações de membros inferiores decorrentes de úlceras diabéticas com infecção de pacientes de uma Unidade Saúde da Família e analisar as alterações fisiológicas detectadas durante a avaliação dos pacientes. Trata-se de uma pesquisa quantitativa de abordagem retrospectiva, realizada de maio a outubro de 2010, com uma amostra de 40 pessoas envolvida nas atividades. Como resultado encontrou-se que os pacientes apresentam alguma deformidade ou proeminência óssea (30,8%) e insensibilidade e ressecamento dos pés (46,2%) como complicações. Conclui-se que os profissionais da saúde, principalmente os enfermeiros devem realizar cuidados com esses pacientes, transmitindo assim conhecimento com foco no cuidado e prevenção, por meio de atividades educativas que visam o bem-estar pessoal e social do paciente.
Características e evidências da produção científica de enfermeiros sobre erros de medicação no ambiente hospitalar
Authors: Silva Lolita Dopico da , Passos Renata dos Santos , Carvalho Márglory Fraga de
Published: February 2023

Estudo que objetivou identificar as características das publicações de enfermeiros sobre erros de medicação. Metodologia de revisão integrativa abrangendo janeiro de 2005 a outubro de 2010 com os descritores “erros de medicação” e “enfermagem” com dados coletados em bases eletrônicas através do Portal Capes.Resultados mostram quatro categorias: condutas dos profissionais diante do erro de medicação; tipos e taxas de erros; fragilidades no sistema de medicaçãoe barreiras ao erro. A conduta prevalente foi não notificar o erro; o tipo prevalente de erro foi na administração e as taxas de erro oscilaram entre 14,8 a 56,7%. A caligrafia ilegível, falhas de comunicação entre profissionais e falta de conhecimento técnico foram fragilidades apontadas. Entre barreiras teve-se a educação do paciente, da enfermagem e a tecnologia. Constataram-se avanços nas pesquisas que testam barreiras e evidenciaram-se lacunas na falta de estudos que abordem aspectos farmacodinâmicos ou farmacocinéticos dos medicamentos envolvidos em erros.
Atividades lúdicas realizadas com pacientes portadores de neoplasia internados em hospital geral
Authors: Moura Caroline de Castro , Resck Zélia Marilda Rodrigues , Dázio Eliza Maria Rezende
Published: February 2023

Este estudo tem por objetivo apreender a contribuição das atividades lúdicas no tratamento do paciente oncológico hospitalizado e identificar as atividades lúdicas mais motivadoras para esta clientela. Trata-se de uma pesquisa qualitativa de natureza fenomenológica. Realizada com pacientes portadores de neoplasia em um hospital geral, situado no município de Alfenas, nos meses de março e abril de 2011. A investigação ocorreu por meio das seguintes questões norteadoras: Como você vê a atuação da equipe de recreação e as atividades realizadas por eles? O que você sugere para ser desenvolvido por este grupo? Apreendeu-se que as atividades lúdicas ajudam os pacientes a enfrentarem a doença, facilitam a interação com a equipe multiprofissional, além de proporcionar um ambiente acolhedor e alegre. Observa-se, ainda, que as atividades mais aceitas foram a música e brincadeiras realizadas pelos palhaços. Sugere-se, por isso, implementar a humanização da assistência utilizando-se de recursos lúdicos.
Berserah Diri atau Memaki: Religious Coping dan Suicidal Ideation pada Mahasiswa
Authors: Savira Marina , Purwono Urip , Wardhani Nurul
Published: February 2023

Bunuh diri merupakan permasalahan kesehatan publik global yang serius dan banyak terjadi pada mahasiswa. Salah satu faktor penting dalam upaya pencegahan bunuh diri adalah suicidal ideation. Religious coping ditemukan memiliki hubungan dengan suicidal ideation, namun studi yang meneliti hubungan kedua variabel tersebut pada mahasiswa di Indonesia masih jarang dilakukan. Penelitian ini bertujuan untuk menemukan apakah religious coping berkorelasi dengan suicidal ideation pada mahasiswa. Pengambilan data dilakukan pada mahasiswa aktif dengan jumlah sampel 247 orang dengan teknik convenience sampling. Analisis data dilakukan menggunakan Rank Spearman. Hasil penelitian menunjukkan bahwa negative religious coping berkorelasi positif signifikan dengan suicidal ideation (ρ = .342, p .05) dan positive religious coping berkorelasi negatif signifikan dengan suicidal ideation (ρ = -.262, p .05). Artinya, semakin sering mahasiswa melakukan positive religious coping, tingkat suicidal ideation yang dimilikinya semakin menurun, sedangkan jika mahasiswa sering melakukan negative religious coping, maka tingkat suicidal ideation yang dimilikinya akan semakin meningkat.Suicide is a serious global public health problem, and happens often in college student population. One of the important factors in suicide prevention is suicidal ideation. Religious coping has been found to be associated with suicidal ideation, but studies about the correlation of both variables in Indonesian college students are scarce. This study aims to see if religious coping correlates with suicidal ideation in college students. Data collection was carried out on active college students with a total sample of 247 people using convenience sampling. Data analysis was done using Rank Spearman. The results found that negative religious coping has a positive significant correlation with suicidal ideation (ρ = .342, p .05) and positive religious coping has a negative significant correlation with suicidal ideation (ρ = -.262, p .05). This means that the more often a college student uses positive religious coping, their suicidal ideation will lower, and if college students use negative religious coping often, their suicidal ideation will rise
School Well-Being Dan Dukungan Sosial terhadap Kecenderungan Perundungan di Pesantren
Authors: Dewi Ismira , Purnamasari Alfi , Rahma Annisa
Published: February 2023

Penelitian ini bertujuan untuk mengetahui hubungan antara school well-being dan dukungan sosial dengan kecenderungan perundungan di Pesantren.Â  Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian kuantitatif dengan teknik analisis data analisis regresi berganda. Analisis data akan dilakukan dengan bantuan SPSS 16.0 for windows. Hasil penelitian menunjukan: (1) terdapat hubungan yang siginifikan antara school well-being dan dukungan sosial dengan kecenderungan perundungan dengan koefisien regresi (R) sebesar 0,383 dan p=0,013 (p0,05). (2) Terdapat hubungan negatif yang signifikan antara school well-being dengan kecenderungan perundungan dengan koefisien korelasi (r) sebesar -0,298 dan p=0,024 (p0,05). (3) Tidak ada hubungan antara dukungan sosial dengan kecenderungan perundungan. Berdasarkan hasil penelitian dapat disimpulkan bahwa pada hipotesis mayor menunjukan ada hubungan yang signifikan antara school well-being dan dukungan sosial dengan kecenderungan perundungan. Pada hipotesis minor pertama menunjukan ada hubungan negatif yang signifikan antara school well-being dengan kecenderungan perundungan dan pada hipotesis minor kedua menunjukan tidak ada hubungan antara dukungan sosial dengan kecenderungan perundungan. Sumbangan efektif yang diberikan variabel school well-being dan variabel dukungan sosial dalam mempengaruhi variabel tergantung kecenderungan perundungan adalah sebesar 14,7%.Bullying cases often attract the attention of the education world, especially in the realm of Islamic boarding schools, which have complex patterns of interaction between students and their environment. This study aims to determine school well-being and social support with bullying tendencies in Islamic boarding schools. The research method in this study is the data analysis technique of multiple regression analysis. The results showed: (1) There was a significant relationship between school well-being and social support with bullying tendencies, the regression coefficient (R) was 0.383 and p=0.013 (p0.05). (2) There is a significant negative relationship between school well-being and bullying tendencies with a correlation coefficient (r) of -0.298 and p=0.024 (p0.05). (3) There is no relationship between social support and bullying tendencies. Based on the results of the study, it can be concluded that the major hypothesis shows that there is a significant relationship between school well-being and social support with bullying tendencies. The first minor hypothesis shows that there is a significant negative relationship between school well-being and bullying tendencies and the second minor hypothesis shows that there is no relationship between social support and bullying tendencies. The effective contribution given by the school well-being variable and the social support variable in influencing the dependent variable on bullying tendencies is 14.7%.
Pendidikan Seksual: Standar Operasional Prosedur “Ganti Baju”
Authors: Rakhmawati Ellya , Hadjam Noor Rochman , Khilmiyah Akif
Published: February 2023

Kekerasan seksual anak sebagai tindakan kekerasan yang mengancam anak-anak, termasuk anak usia dini. Oleh karena itu, pendidikan seksual merupakan salah satu upaya yang tepat sebagai prevensi untuk terjadinya kekerasan seksual pada anak usia dini. Salah satu PAUD di Kota Semarang mengajarkan materi ganti baju yang tepat untuk muridnya, kemudian dikembangkan menjadi sebuah standar operasional prosedur (SOP). Penelitian ini bertujuan untuk mengeksplorasi lebih jauh mengenai penerapan SOP “Ganti Baju” di PAUD kota Semarang. Penelitian ini menggunakan metode deskriptif kualitatif dengan pendekatan fenomenologi. Hasil penelitian didapatkan melalui observasi dan wawancara kepada guru PAUD dan dokumentasi melalui foto. Hasil penelitian menunjukkan bahwa SOP “Ganti Baju” meliputi berbagai macam konten, seperti urutan memakai baju yang tepat, tempat untuk anak berganti baju, cara meletakkan baju ketika berpakaian, dan kewajiban untuk siswi memakai legging sebagai dalaman bawahan seragam. Penerapan SOP “Ganti Baju” juga memperhatikan usia anak dan tahap perkembangannya.Child sexual abuse (CSA) is a threaten act to children, including early age childhood. Therefore, sexual education can be the right way to prevent sexual abuse to early age childhood. A preschool in Semarang teaches “Dressing rules” to their students and develop into Standard Operating Procedure (SOP). This study aims to explore further regarding “Dressing rules” SOP in the kindergarten. This study used a qualitative descriptive method with phenomenology approach. The result of the study was obtained through observation, teacher interview, and photos documentation. The result showed that “Dressing rules” SOP includes many contents, such as sequences of wearing clothes properly, room to dress, how to put clothes while dressing, and female students’ responsibility to wear legging under skirts. Implementing “Dressing rules” SOP should be. adjusted to children’s age and their developmental stages.
Properti Psikometrik Intelligenz Struktur Test Subtes Kemampuan Numerik (Rechenaufgaben dan Zahlen Reihen)
Authors: Tarigan Medianta , Fadillah Fadillah
Published: February 2023

Intelligenz Struktur Test (IST) merupakan salah satu alat ukur intelegensi yang banyak digunakan di Indonesia. Penelitian ini bertujuan mengkaji ulang fungsi IST dalam menghasilkan pengukuran inteligensi yang berkualitas. Penelitian yang menguji properti psikometrik subtes IST dalam mengukur kemampuan numerik, yaitu subtes Rechenaufgaben (RA) dan Zahlen Reihen (ZR) ini mengikutsertakan 3.662 partisipan sebagai sampel penelitian. Penelitian ini menggunakan metode analisis aitem dengan Teori Respon Butir 3PL, validasi convergent- discriminant, dan uji reliabilitas dengan split-half. Hasil analisis aitem menunjukkan bahwa aitem-aitem pada subtes RA dan ZR termasuk kategori baik. Hasil validasi convergent-discriminant menunjukkan subtes RA berkorelasi positif dengan subtes ZR. Adapun uji reliabilitas menunjukkan bahwa error yang terjadi pada subtes RA dan ZR cenderung kecil, yaitu 21.1% dan 32.5% berturut-turut untuk subtes RA dan ZR. Hal ini berarti bahwa aitem-aitem pada subtes RA dan ZR mampu memberikan stimulasi kepada partisipan tes untuk mengukur kemampuan numeriknya. Akan tetapi, perlu dilakukan revisi terhadap 17.5% aitem soal yang dianggap memiliki bias pengukuran.Intelligenz Structure Test (IST) is one of the most widely used intelligence test in Indonesia. This study aims to review its function quality as intelligence test. This study included 3.662 participants as research samples and tested two numerical IST subtest; the Rechenaufgaben (RA) and Zahlen Reihen (ZR) subtests. This research uses the item analysis method with 3PL Item Response Theory, convergent-discriminatory validation, and split-half reliability test. The results of the item analysis showed that the items in the RA and ZR subtests were in a good category. The results of the convergent-discriminatory validation showed that the RA subtest was positively correlated with the ZR subtest. The reliability test shows that the errors occur in the RA and ZR subtests tend to be small, 21.1% for the RA and 32.5% for ZR subtests. This means that the items in the RA and ZR subtests can provide stimulation to the test participants to measure their numerical ability. However, it is necessary to revise the 17.5% item items that are considered to have a measurement bias.
Kontribusi Guru pada Pendidikan Seksualitas Anak Usia Dini
Authors: Maulia Desi , Rakhmawati Dini , Dewanto Febrian Murti
Published: February 2023

Intervensi terhadap kasus kekerasan seksual pada anak telah menjadi perhatian utama berbagai pihak. Penelitian ini bertujuan mengkaji kaitan pemahaman guru TK dengan sikap terhadap pendidikan seksualitas, keterlibatan guru dalam pelatihan seksualitas, dan masa waktu guru bekerja. Penelitian menggunakan pendekatan kuantitatif. Pengumpulan data dilakukan melalui survei online dengan tes pengetahuan dan kuesioner. Populasi penelitian adalah guru TK di Kota Semarang. Sampel penelitian melibatkan 136 guru TK di Kota Semarang dengan teknik pengumpulan sampel acak. Data dianalisis dengan analisis bivariat. Hasil penelitian menunjukkan (1) ada korelasi pemahaman guru mengenai pendidikan seksual pada anak usia dini terhadap sikap yang dimiliki guru pada pelaksanaan pendidikan seksual anak usia dini (Chi Square = 27,227; p value = 0,00), (2) ada korelasi keterlibatan guru TK dalam pelatihan terhadap pemahaman guru mengenai pendidikan seksual pada anak usia dini (Chi Square = 9,583; p value = 0,002), dan (3) ada korelasi masa kerja guru terhadap pemahaman guru mengenai pendidikan seksual pada anak usia dini (Chi Square = 13,575; p value = 0,000)Interventions in cases of sexual violence against children have become the primary concern of various parties. This study examines the relationship between the understanding of kindergarten teachers with attitudes towards sexuality education, teacher involvement in sexuality training, and the length of time the teacher works. The research uses a quantitative approach. Data was collected through online surveys with knowledge tests and questionnaires. The research population is kindergarten teachers in the city of Semarang. The research sample involved 136 kindergarten teachers in the city of Semarang with a random sample collection technique. Data were analyzed by bivariate analysis. The results showed (1) there was an effect of teachers’ understanding of sexual education in early childhood on the attitudes of teachers in the implementation of early childhood sexual education (Chi-Square = 27,227; p-value = 0.00), (2) there was an influence of teacher involvement Kindergarten in training on teachers’ understanding of sexual education in early childhood (Chi-Square = 9.583; p-value = 0.002), and (3) there is an effect of tenure [NS1] of teachers on teachers’ understanding of sexual education in early childhood (Chi-Square = 13,575; p-value = 0.000).
Laras Slendro In Traditional Music Gamelan Banyuwangi Changes
Authors: Purnomo Alexander Eko , Yanuartuti Setyo , Mariasa I Nengah , Yermiandhoko Yoyok
Published: February 2023

A traditional music group from the Banyuwangi region with unique qualities is called Gamelan Banyuwangi. The peculiar laras known as the slendro sliring that distinguishes the Banyuwangi gamelan from other gamelan is one of its distinguishing features. The laras slendro sliring, however, became less common as time went on due to changes. This study set out to identify the variables that affected how the laras slendro changed in relation to the Banyuwangi gamelan. Descriptive qualitative research methodology was employed in this study. The laras on the Banyuwangi gamelan serve as the study's formal and material objects, respectively, together with the notion of change. Secondary information was gathered from records, such as old music videos and some pictures of previous forms of gamelan music. Data collection techniques used in this study include observation, interviews, and document studies. To get the validity of the data the author triangulated the sources. The analysis technique used by the author includes data reduction, data presentation, and drawing conclusions. The results of the study, there are two factors that affect the change in the laras of the Banyuwangi gamelan slendro, namely changes in evolution and acculturation. Evolutionary changes occur in the decrease in the tone of the laras slendro sliring to the slendro that is used today because the younger generation cannot follow the use of the laras slendro sliring so there is an evolution in Banyuwangi gamelan music. Second, there are changes due to acculturation factors that occur during tuning, so Banyuwangi gamelan craftsmen use standard Western music tuners to make tuning easier.
Low-moderate dietary phytoestrogens transiently disrupt spermatogenesis and the seminal plasma proteome in the ram
Authors: Pool Kelsey R , Kent Tayler C , Ding Luoyang , Connolly Callum , Foster Kevin J , Enkhbat Gereltsetseg , Ryan Megan H , Blache Dominique
Published: February 2023

In brief

Dietary phytoestrogens disrupt a specific stage of ram spermatogenesis, causing subtle decreases in sperm quality by affecting the expression of pathways involved in the structural integrity of the spermatozoa. This paper demonstrates for the first time that ram reproduction is compromised by oestrogenic pasture, whilst also providing a longitudinal model for the impact of phytoestrogens on male fertility.

Compounds with oestrogen-like actions are now common in both the Western diet. The long-term impacts and underlying mechanisms by which oestrogenic compounds alter male reproduction, however, are unclear. To investigate this, we used a longitudinal sheep model examining the impact of oestrogenic pasture consumption on semen quality and production, testicular size, sexual behaviour and the seminal plasma proteome of Merino rams (n = 20), over a full spermatogenic cycle and in the subsequent breeding season. Throughout the study period, sexual behaviour, sperm production and motility were similar between the exposed and non-exposed rams (P > 0.05). However, between 5 and 8 weeks of exposure to dietary phytoestrogens, rams produced a higher percentage of spermatozoa with a specific malformation of the sperm midpiece and reduced DNA integrity, compared to non-exposed rams (P < 0.001). Investigation into the seminal plasma proteome revealed 93 differentially expressed proteins between phytoestrogen-exposed and control rams (P < 0.05). Exposure to phytoestrogens increased the expression of proteins involved in cellular structure development, actin cytoskeleton reorganisation, regulation of cell function and decreased expression in those related to catabolic processes. The greatest fold changes were in proteins involved in the assembly of the sperm flagella, removal of cytoplasm, spermatid development and maintenance of DNA integrity. After returning to non-oestrogenic pasture, no differences in any measure were observed between treatment groups during the subsequent breeding season. We conclude that dietary phytoestrogens can transiently disrupt specific stages of ram spermatogenesis, causing subtle decreases in sperm quality by affecting the expression of pathways involved in the structural integrity of the spermatozoa.
Integrated biorefinery for production of biodegradable film, bioethanol, and soda pulp from corn stalks
Authors: Özyürek Ömer , Çöpür Yalçın
Published: February 2023

In traditional pulping, black liquor is burned in an alkali recovery system to produce energy. According to the integrated forest biorefinery (IFBR) concept, hemicellulose is partially pre-extracted prior to pulp production to generate value-added products. Corn stalks have a remarkable carbohydrate content (75% w/w), and thus were examined in this study in terms of the IFBR concept. The hemicelluloses were pre-extracted with hot water (90, 120, 135, and 150 °C), NaOH, and NaOH + NaBH4 (50, 70, and 90 °C) for 4 h. NaOH charges of 16.7, 26.7, and 33.3% were explored. The extracts were utilized to produce bioethanol and biodegradable films, and papermaking pulps were produced from the solid fractions. Differences among groups were identified via analysis of variance, and the Duncan’s test was applied to determine those differences that were significant. The results showed that the alkaline pre-extraction (26.7% NaOH at 50 °C) removed 35.6% of the xylose from the stalk structure. The liquid fraction collected from the hot water pre-extraction at 150 °C gave a 14.7% (g/100 g soluble material) yield of bioethanol. Moreover, the theoretical ethanol yield was calculated as 89.4%. The addition of gluten and nanocellulose to the xylan enabled the production of high-quality biodegradable films. Furthermore, the pulps produced from the hot water pre-extracted solid fractions were comparable in yield and pulp properties to the control soda pulp.
АНТИЧНЫЕ РЕМИНИСЦЕНЦИИ В РУССКОЙ ПОЭЗИИ НАЧАЛА XIX В. (ПО МАТЕРИАЛАМ АЛЬМАНАХА «СВИТОК МУЗ»)
Authors: Суворова Ирина , Скоропадская Анна
Published: February 2023

Поэтический альманах «Свиток муз» (1802–1803) был типичным проявлением эклектики в искусстве начала XX в. Это был «переходный период» от классицизма к сентиментализму с претензией на развитие неоклассицизма в дальнейшей истории русской литературы. Авторы поэтического альманаха намеревались создать новаторскую поэзию, пронизанную непосредственными переживаниями своих чувств и эмоций, без пафоса и официоза «устаревавшего» классицизма. Однако подобное стремление к выразительности невозможно без экспликации эстетических категорий и ценностей, которые авторы альманаха позаимствовали у античных философов. В статье выявлены античные реминисценции, используемые авторами альманаха на уровне жанров, образов и мотивов, а также реминисценции античной философии в описании прекрасного у Платона, связи прекрасного с истиной у Плотина, телесности у Сенеки, катарсиса у Аристотеля.
Paganism in ancient Plisnesk (VII-XII c.)
Authors:   Ethnology Insitute of the National Academy of Sciences of Ukraine, Fylypchuk Halyna
Published: February 2023

The monograph, through the prism of ethnoarchaeological approaches, highlights numerous issues of paganism of the population of ancient Plisnesk of the 7th–12th centuries. First of all, it presents the description of the structure and historical development of the cult center, on the basis of which a huge Slavic settlement was built. The functioning of the sanctuary began with the laying of sacrificial pits, on top of which a shaft-shaped sacrificial “belt” was soon built – a cult object that was used during various sacred rites. Its main component was ritual cremated and fragmented human inhumations. The latter made up cult burials, entire complexes of burials, or were scattered in the filling of the “belt”. The set of things accompanying burials (jewelry, household items, weapons, tools, etc.) shows that the sacrificed people occupied a high social status in the social hierarchy of ancient Plisnesk. It was found that the sanctuary also included long overground buildings of public purpose – “contins”, a temple, a ritual line of defense, numerous stone sites of sacred purpose, asynchronous defensive lines around the site of the cult center, as well as various types of sacred buildings, whose purpose has not been quite established yet. The monograph presents the analysis of the burial rite of the indigenous Slavs (represented by soil cremations of the 9th-10th centuries) and the incoming Varangian population (kurgan burial rite of the late 10th-early 12th centuries). Within the scope of the analysis is also the pagan tradition of building cenotaphs – symbolic empty graves that were filled in memory of a person who died in a foreign land. The current research defines the time frame for the functioning of the kurgan on the settlement site; outlines the question of religion, worldview and ideas about the sacred space of the inhabitants of Plisnesk; shows that the presence of a well-ordered sacred space of Plisnesk, the complete structure and functional load of the cult center, its connections with other sacred antiquities of the Slavic population directly indicate the existence of a special social institution in Plisnesk – the priesthood. The influence of priests on state-building and city-building processes, clearly visible on the example of ancient Plisnesk, is analyzed. The book is for ethnologists, historians, archaeologists, undergraduate and graduate students, and all those interested in the ancient history of Ukraine.
Assessment of the dose load during the dismantling of the WWR-M reactor
Authors:   Institute for Nuclear Research of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, Lobach Yu.M. , Lobach S.Yu. , Luferenko E.D. , Shevel V.M. ,   Nuclear and Industrial Engineering (N.IN.E.) S.R.L., Lucca, Italy
Published: February 2023

The WWR-M is a light-water-cooled and moderated heterogeneous research reactor with a thermal output of 10 MW. The final decommissioning planning is in progress now. The general decommissioning strategy consists of the dismantling and separate removal of the bulky elements as a whole (in one piece) without preliminary segmentation. The dismantling of the primary and secondary cooling loops is considered as one of the key tasks; a separate dismantling design has been developed. The baseline principles for the technical solution and safety are presented in the given paper. Results of the dose assessment showed that the work can be performed at a collective dose of less than 20 man-mSv.
The Impact of Mentoring on English Language Teachers: A Case From Argentina
Authors: Pérez Berbain Mercedes , Payaslian Lidia , Sauer Rosas Anabella , García Belén , La Porta Agustina
Published: February 2023

Despite evidence on the benefits of mentoring with beginning teachers, little is known about the impact of mentoring on experienced teachers. Based on a qualitative research design, this study explores mentoring with 11 teachers of English as an additional language (four mentors and seven mentees) during the COVID-19 epidemic. Data were gathered through mentees’ journals, interviews, and documents. Drawing on thematic analysis, mentees were found to improve their teaching practice and develop their professional knowledge. Specifically, they displayed more sensitivity to learners, unleashed creativity, improved class management, strengthened relationships, increased motivation, and developed reflective competencies. The study argues that mentoring can allow all English language teachers to build knowledge with other teachers from their own experiences and for other teachers and educational stakeholders.
Archaeology of Pastoralism in the Central Pyrenees
Authors: Garcia Casas David , Ballbè Ermengol Gassiot
Published: February 2023

This study investigates changes in human occupation and pastoralism in a zone of the central Pyrenees (Spain) from their first occurrences to the present day, based on an analysis of archaeological structures recorded at sites in the study area. Huts, enclosures, rock-shelters and other architectural remains were analysed and compared in order to develop a typological classification, and morphological similarities and differences between sites in terms of size and number of structures were also noted. The study proposes a sociohistorical interpretation of the differences in the archaeological record within a long-term chronological framework, in this way building a historical sequence of livestock practices and human occupation in the Pyrenees.
Nilometer from Graeco-Roman Thmouis
Authors: Silverstein Jay E , Littman Robert J , Bagdi Stacey Anne , Eltalhawy Elsayed F , Mashaly Hamdy Ahmed , Mohamed Emad Hassan , Gabr Mohamed
Published: February 2023

In 2010, a construction project for a new water pumping station on the west side of Tell Timai (Egyptian Delta) encountered a limestone structure. This discovery triggered a salvage excavation that exposed a rare example of a well-preserved Delta nilometer. The architectural features of the nilometer reveal some specific and even unique adaptations consonant with the hydrological situation of the Graeco-Roman city of Thmouis. Unlike other examples of nilometers, an aqueduct runs from the north, spilling into the stairwell leading down into the stilling well. A dam stone in the aqueduct appears to have regulated the release of water. The nilometer was also articulated with an adjacent hill by a staircase. Folk tradition memorialised the stair and nilometer location in local fertility and healing rituals performed during Nile flood-related festivals; this tradition preserved the sacred space long after the nilometer and its associated architecture were buried and forgotten. The multifaceted role of the Thmouis nilometer in the cultural and economic life of the city and nome carries wider implications for the political organisation of the nome and the dynamic between syncretic forces and imperial appropriation in Graeco-Roman Egypt. Here we review the shape, function, archaeological context, ideological significance and hydrography of the nilometer and consider the implications of the nilometer for the history of the Mendesian nome and its sacred relationship with the Nile River.
Analysing Social Change through Domestic and Public Spaces
Authors: Nión-Álvarez Samuel
Published: February 2023

This paper presents a study of Iron Age (IA) societies through the analysis of architecture and built space. The approach is focused on a small area in the northwest of the Iberian Peninsula, and constructs a small-scale narrative that seeks to identify different social dynamics concerning the onset, development and decline of the fortified habitat (between the ninth and first centuries BC). Three main spheres of human habitation are assessed: the environment of the household, the construction of collective and non-domestic buildings and the development of settlement planning. The main characteristics of these spheres are discussed and summarised, and they are understood as part of the same dynamic that reflects how the IA communities of northwest Iberia were structured. The main objective of the paper is to employ this methodology to study social dynamics at different scales and thus build a multi-scale historical and archaeological narrative about the development of heterogeneous processes in IA societies.
Achievement of maximal SARS-CoV-2 collective immunity among the Tajik population by March 2022
Authors: Popova A. Yu. , Smirnov V. S. , Egorova S. A. , Abdullozoda J. A. , Ruziev M. M. , Milichkina A. M. , Ivanov V. A. , Vokhidov S. D. , Ramsay E. S. , Mullodzhanova M. M. , Drozd I. V. , Holova B. T. , Krasnov A. A. , Jafarov N. D. , Zhimbaeva O. B. , Gubanova A. V. , Razumovskaya A. P. , Drobyshevskaya V. G. , Totolian A. A.
Published: February 2023

Despite all efforts of the world community, the COVID-19 pandemic remains one of the main epidemiological challenges of our time. Even with its widespread distribution, the infection may have certain local features due to social, geographic, and climatic factors. Objective: to study collective immunity to SARS-CoV-2 in the population of the Republic of Tajikistan.

A cross-sectional, randomized study of herd immunity was carried out according to a program developed by Rospotrebnadzor and the St. Petersburg Pasteur Institute, taking into account WHO recommendations. The ethics committees of the corresponding entities approved the study: Tajik Ministry of Health and Social Protection; and the St. Petersburg Pasteur Institute (Russia). Based on questionnaire results, 4,022 people were selected, representing 0.15% (95% CI: 0.14-0.15) of the total population randomized by age and region. In subsequent laboratory analysis, 3682 people took part. The distribution and quantitative content of antibodies (Abs) to viral nucleocapsid (N Ag) and receptor binding domain (RBD Ag) were determined by ELISA. When questioned, a history of SARS-CoV-2 vaccination was indicated by 69.7% (95% CI: 68.2-71.2) of the volunteer cohort. Vector vaccines were most frequently used (50.6%; 95% CI: 48.7-52.5), with whole-virion inactivated preparations in second place (23.0%: 95% CI: 21.4-26.6) and mRNA vaccines in third place (21.0%; 95% CI:19.4-22.6).

The cohort (n = 3682) featured 27.5% men and 72.5% women. The overall seroprevalence was 98.5% (95% CI: 97.7-99.2) in men and 99.4% (95% CI: 99.0-99.6) in women (differences statistically insignificant). Overall seroprevalence in the cohort was 99.2% (95% CI: 98.8-99.4) and ranged from 97.2 to 100% in certain subgroups. Asymptomatic seropositivity in the whole cohort was 98.4% (95% CI: 97.6-99.1). As a result of a mandatory vaccination program introduced in Tajikistan under a COVID-19 Emergency Project, the level of herd immunity among vaccinated individuals reached 99.5% (95% CI: 99.1-99.7), which is similar to the level reached in the cohort as a whole.

The epidemic situation that developed in Tajikistan by mid-March 2022 was characterized by an almost absolute level of herd immunity, as evidenced by an absence of detected overt COVID-19 cases since the end of February (2022).