bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Positive Parenting Styles as Perceived by Middle School Students on Academic Achievement and the Mediation Effect of Self-Esteem and Academic Engagement
Authors: Kim Jhong Yun (Joy) , Kim Eunbee
Published: December 2021

This study aimed to identify how positive parenting styles as perceived by middle school students affect their academic achievement and to assess the mediation effect of self-esteem and academic engagement. Data concerning 2590 middle school first graders were obtained from the South Korea Children and Youth Panel Survey 2018, and data analysis was undertaken using the SPSS21.0, AMOS22.0, and PROCESS macro programs. This study identified significantly positive effects of positive parenting styles and academic engagement on self-esteem, and of academic engagement on academic achievement. Furthermore, self-esteem and academic engagement had a mediating effect on the relation between positive parenting styles and academic achievement. Therefore, educators should develop programs that improve positive parenting styles, and specific programs for middle school students to enhance their academic engagement and self-esteem.
Evaluation of Environmental and Economic Integrated Benefits of Photovoltaic Poverty Alleviation Technology in the Sanjiangyuan Region of Qinghai Province
Authors: Meng Rui , Zhang Lirong , Zang Hongkuan , Jin Shichao
Published: December 2021

Low-carbon energy technology is the most fundamental way to control carbon emissions. The Sanjiangyuan region in Qinghai Province must put environmental conservation in first place during development, because of its important function of national ecological protection. The comprehensive benefits of photovoltaic technology in this area need to be evaluated. In this paper, a new multicriteria decision model (MCDM) is established, with the four dimensions of “environment-society-economy-population”, and 16 specific indicators are developed by combining the coupling coordination degree (CCD) and the decision-making trial and evaluation laboratory (DEMATEL) method. MCDM can contribute to screening out key indicators that should be of high concern. The evaluation results show that the four dimensions of “environment-society-economy-population” in the Sanjiangyuan region are highly correlated, and the PPAT is creating a coordinated development; the elements of population and environment play a decisive role in the comprehensive benefits based on five key indicators and three indicative indicators. The paper provides suggestions for the local government to further implement the PV poverty alleviation industry, under the condition that the natural environmental capacity of the region and the natural ecosystem are fully respected and undisturbed.
Phragmén-Lindelöf Alternative Results for a Class of Thermoelastic Plate
Authors: Luo Shiguang , Shi Jincheng , Ouyang Baiping
Published: December 2021

The spatial properties of solutions for a class of thermoelastic plate with biharmonic operator were studied. The energy method was used. We constructed an energy expression. A differential inequality which the energy expression was controlled by a second-order differential inequality is deduced. The Phragme´n-Lindelo¨f alternative results of the solutions were obtained by solving the inequality. These results show that the Saint-Venant principle is also valid for the hyperbolic–hyperbolic coupling equations. Our results can been seen as a version of symmetry in inequality for studying the Phragme´n-Lindelo¨f alternative results.
Herpesvirus Nuclear Egress across the Outer Nuclear Membrane
Authors: Roller Richard J. , Johnson David C.
Published: December 2021

Herpesvirus capsids are assembled in the nucleus and undergo a two-step process to cross the nuclear envelope. Capsids bud into the inner nuclear membrane (INM) aided by the nuclear egress complex (NEC) proteins UL31/34. At that stage of egress, enveloped virions are found for a short time in the perinuclear space. In the second step of nuclear egress, perinuclear enveloped virions (PEVs) fuse with the outer nuclear membrane (ONM) delivering capsids into the cytoplasm. Once in the cytoplasm, capsids undergo re-envelopment in the Golgi/trans-Golgi apparatus producing mature virions. This second step of nuclear egress is known as de-envelopment and is the focus of this review. Compared with herpesvirus envelopment at the INM, much less is known about de-envelopment. We propose a model in which de-envelopment involves two phases: (i) fusion of the PEV membrane with the ONM and (ii) expansion of the fusion pore leading to release of the viral capsid into the cytoplasm. The first phase of de-envelopment, membrane fusion, involves four herpes simplex virus (HSV) proteins: gB, gH/gL, gK and UL20. gB is the viral fusion protein and appears to act to perturb membranes and promote fusion. gH/gL may also have similar properties and appears to be able to act in de-envelopment without gB. gK and UL20 negatively regulate these fusion proteins. In the second phase of de-envelopment (pore expansion and capsid release), an alpha-herpesvirus protein kinase, US3, acts to phosphorylate NEC proteins, which normally produce membrane curvature during envelopment. Phosphorylation of NEC proteins reverses tight membrane curvature, causing expansion of the membrane fusion pore and promoting release of capsids into the cytoplasm.
Towards Ending Immunization Inequity
Authors: Sangster Anna Victoria , Barratt Jane M.
Published: December 2021

Vaccine-preventable diseases (VPD) are responsible for a significant portion of mortality across the life course in both low-income countries and in medium- and high-income countries. Yet, countries are consistently below the adult influenza vaccination targets, with rates in recent times even falling in some areas. (1) The study Towards Ending Immunization Inequity seeks to understand the various factors that contribute to the accessibility and effectiveness of vaccine-related messages and campaigns including the effects of social determinants, with the knowledge that these opportunities for communication represent a unique policy lever to improving uptake rates of vaccination in the most at-risk communities. (2) To address this knowledge gap, a 3-phase mixed-methods study was conducted including a preliminary scan of existing vaccine schedules and NITAG recommendations, focus groups and a cross-sectional survey. (3) Study results indicated that social determinants play a key role in an individual’s knowledge of vaccine-related information including types of vaccines available, vaccination gateways, vaccine recommendations and vaccine safety. (4) However, knowing that social determinants can influence uptake rates does not readily create opportunities and entry points for governments to implement tangible actions. An accessible entry point to reducing and ending immunization inequity is through changes in public health messaging to reach those who are currently unreachable.
Analysis of socio-economic conditions for rural development
Authors: Lescheva M. G. , Steklova T. N. , Khusainova A. S.
Published: December 2021

The article is devoted to the analysis of the results of observing the living conditions of the rural population, assessing the scale and effectiveness of state support measures aimed at the development of rural territories. The development of engineering infrastructure (gasification and water supply), provision of improved housing, accessibility of means of communication, educational and medical services in rural areas was considered. A comparative assessment of the level and structure of household income in the city and the countryside has been carried out. Living conditions have been identified as factors in the deterioration of the socio-economic situation in rural settlements. The directions of improvement of socio-economic conditions of development of rural territories, which involves increase of state support financing within the framework of federal targeted projects and programs, increase of interest of private business and activity of the local community, have been defined.
Navigating new organisation forms: a qualitative study of primary care networks
Authors: Kordowicz Maria , Malby Becky , Mervyn Kieran
Published: December 2021

Background

NHS England (NHSE) instigated primary care networks (PCNs) as a collaboration of general practices working together at scale to improve population health in the local community.

Aim

To capture GP PCN leaders’ perceptions of the opportunities and pitfalls of PCNs, as well as points of learning, during their inception and development, in order to guide the future development of PCN form and function.

Design & setting

A qualitative study in UK primary care.

Method

Nine PCN GP leaders were interviewed in depth to gather their views and experiences of PCNs. In addition, 31 free-text survey responses pertaining to how participants perceived the purpose of PCNs were collated.

Results

Four key themes were identified: defining purpose and managing ambiguity; bureaucracy versus local autonomy; relational working; and facilitative leadership. The need for purpose setting to remain adaptive was seen as crucial in avoiding the constraints of too rigid a structure in order to retain local ownership, while remaining focused around meeting complex population needs and reducing variation. Participants reported navigating their way through striking a balance between the ‘top-down’ mandate and recognising local need. Of importance to the success of PCNs was the necessity of effective relational working and facilitative leadership.

Conclusion

While the desire to be proactive and collaborative was emphasised by the PCN leaders, the importance of distributed leadership and time given to building trust and effective working relationships within new organisational forms cannot be underestimated.
Perfil das escolas que visitaram a Área de Relevante Interesse Ecológico Mata de Santa Genebra no ano de 2019
Authors: Martins Sabrina Kelly Batista , Melo Ismail Barra Nova de , Lana Rita de Cássia , Marques Silvio Cesár Moral
Published: December 2021

A educação e interpretação ambiental, a recreação em contato com a natureza e o turismo ecológico, integram os objetivos do Sistema Nacional de Unidades de Conservação. Segundo as Diretrizes para visitação em Unidades de Conservação (UC), a visitação pode permitir que a sociedade se aproxime da natureza, por meio de vivência no meio natural. Assim, os gestores de unidades de conservação precisam conhecer as características dos seus visitantes, visando elaborar estratégias de planejamento e manejo do uso público como forma para tornar satisfatória a experiência turística. O presente trabalho constitui-se de uma análise do perfil das escolas que visitaram em 2019 a Área de Relevante Interesse Ecológico (ARIE) Mata de Santa Genebra, localizada no município de Campinas (SP). Os dados foram consolidados e analisados por meio de planilhas de Excel. Com o uso do aplicativo Google Earth Pro mapeou-se a distribuição das escolas. Com a análise dos dados foi possível identificar que a maioria das instituições que visitaram a ARIE em 2019 era municipal, principalmente escolas oriundas do município de Campinas. Além disso, o ciclo de educação infantil foi o que mais participou do Programa de Visita Monitorada de Escolas. Conhecer o perfil das escolas que visitam a ARIE se constitui uma ferramenta fundamental para levantar fragilidades e potenciais essenciais à gestão, auxiliando na avaliação das atividades desenvolvidas na UC e na melhoria contínua dos projetos executados.
A Educação Ambiental no Contexto Escolar Brasileiro
Authors: Reis Flávia Helena Cabral Silva , Moura Anna Regina Lanner de , Cabral Walter Reis , Miranda Rita de Cássia Mendonça
Published: December 2021

Este artigo tem como objetivo analisar a educação ambiental e seus desdobramentos no contexto escolar brasileiro. Foram selecionadas, das plataformas científicas Google Acadêmico, Scielo (Scientific Electronic Library Online) e Portal da Capes, publicações que abordam a presente temática. Diante das análises obtidas, observa-se que o conceito de educação ambiental evoluiu ao logo dos anos; os professores, em sua maioria, apresentam resistência em relação à educação ambiental na escola; a educação ambiental pode ser trabalhada de forma interdisciplinar de diferentes maneiras, embora isso ainda seja pouco utilizado pelas escolas brasileiras.
Seres humanos, animais peçonhentos e ambiente: conhecimento prévio do público infantil
Authors: Corrêa Yara Gomes , Ribeiro Neto Derval Gomes , Nascimento Taluany da Silva , Nunes Antônio Ítalo dos Santos , Seibert Carla Simone
Published: December 2021

O avanço dos sistemas urbanos sobre a natureza aumentou a frequência dos encontros entre seres humanos e animais venenosos peçonhentos. O objetivo deste estudo foi diagnosticar o conhecimento prévio de uma comunidade escolar sobre sua relação ambiental com os animais venenosos peçonhentos. Houve pesquisa-ação, com realização de oficinas didático-pedagógicas para crianças, aplicação de questionários e observação não participante. O público se confundiu para classificação dos animais como venenosos peçonhentos e mostrou-se indiferente aos ambientes modificados, entre outros resultados. Concluiu-se que as oficinas foram eficientes para fixar informações morfofisiológicas e ineficazes para sensibilizar as crianças quanto à sua interação ambiental com esses animais.
Políticas de Educação Ambiental desenvolvidas em municípios da região sudeste do Pará
Authors: Azevedo Marcia Aparecida Miranda de , Souza Fábia Maria de , Reis Ana Carolina Moraes , Pontes Altem Nascimento
Published: December 2021

Este estudo objetivou investigar as Políticas de Educação Ambiental desenvolvidas em municípios da região sudeste do Pará, na microrregião de Paragominas, buscando entender como essa temática vem sendo abordada nesses municípios, bem como, as diversas formas de inserir a Educação Ambiental em ações promovidas pelas secretarias municipais de educação e secretarias municipais de meio ambiente. Este estudo teve como base, procedimentos oriundos da pesquisa bibliográfica, documental e pesquisa de campo. Para a pesquisa de campo foi realizada entrevistas e aplicação de questionários aos secretários municipais de educação e secretários municipais de meio ambiente da microrregião pesquisada. Os dados possibilitaram observar que as Políticas de Educação Ambiental ainda estão sendo promovidas de forma primária, se considerarmos os graves problemas ambientais que o país possui, contudo, mesmo que ainda incipientes, contribuem para instigar e sensibilizar a comunidade escolar e sociedade em geral no que tange aos problemas ambientais dos municípios.
Anosognosia pós Acidente Vascular Cerebral: percepção do paciente e familiar
Authors: Marques Dias Gabriela , Christmann Morgana
Published: December 2021

Introdução. A anosognosia é a alteração da percepção da existência das dificuldades. Objetivo. Avaliar a anosognosia pós Acidente Vascular Cerebral (AVC) nas fases aguda e subaguda (até seis meses após a lesão). Método. A amostra foi constituída por pacientes atendidos em um Hospital ou na Atenção Primária à Saúde, e seus familiares. Foi um estudo quantitativo, de desenho transversal, a coleta de dados ocorreu de agosto a novembro de 2020. Foram aplicados aos pacientes e familiares os questionários Dados Sociodemográficos e The Patient Competency Rating Scale (PCRS), ambos em duas versões. Resultados. A amostra apresentou 10 pacientes e familiares, os pacientes tinham média de idade 55,4±15. Na observação da discrepância da pontuação PCRS entre pacientes e familiares, dois (20%) dos pacientes não apresentam anosognosia, e três (30%) apresentam pouca discrepância, considerou-se que não apresentam anosognosia. Já, cinco (50%) dos pacientes tiveram discrepância na PCRS com os familiares e considerou-se que apresentam anosognosia, desses três (30%) acreditam ter mais facilidade, e dois (20%) acreditam ter mais dificuldade. Não afirmamos estatisticamente, sugerimos que pontuações discrepantes maior que três sugerem anosognosia. Conclusão. Dentre os pacientes, 50% apresentam alteração na autopercepção da saúde, tendendo a percepção positiva, não afirmamos estatisticamente por não existir escore na PCRS. Os 50% dos pacientes que não possuem anosognosia têm mais chances de aderir à reabilitação. Os pacientes que se enxergam com mais facilidade podem não aderir à reabilitação. Sugere-se estudos com critério de inclusão o Mini Exame do Estado Mental (MEEM), garantindo respostas conscientes.
Una celebración permanente. Función social del texto poético en la construcción de la memoria e identidad colectiva en la Ol. 10 de Píndaro.
Authors: Cardozo Pablo
Published: December 2021

En Ol.10.24-77 se relata la fundación por parte de Heracles del sitio de Olimpia y la celebración de los primeros juegos Olimpícos. Se propone que el poeta establece un paralelismo entre la propia labor poética y la fijación del recinto sagrado y conecta esa primera celebración con la performance actual del epinicio explicitada en el pasaje metapoético de Ol.10.78-84. En dichos versos se circunscribe este ‘nuevo canto’ a una tradición que se remonta al pasado histórico-mitológico y que se proyecta en los contextos performativos del futuro, destacando la importancia de los factores sincrónicos y diacrónicos, sobre todo la re-performance de los textos poéticos.
Un marco ritual para la escena: el sacerdos histriónico en la palliata
Authors: Martí María Eugenia , Moro Stella Maris
Published: December 2021

En distintos pasajes de la palliata es posible leer indicios de las lógicas rituales que enmarcan los ludi scaenici. Ciertas máscaras remedan una auctoritas histriónica que permite dar curso al acontecimiento teatral mediante el poder de una parodia hilarante de la celebración del ritual. Esta capacidad de persuadir a los espectadores para entrar al espacio lúdico de la representación incluye también una demanda: silencio, atención y valoración ecuánime por parte de ellos. Actores y público se unen así como oficiantes y auxiliares del convivio teatral en un pacto de reciprocidad equitativa cuya relevancia es analizada en este artículo.
Presentación del dossier "Mujeres investigando en el Archivo INET"
Authors: Mogliani Laura
Published: December 2021

Presentación del dossier "Mujeres investigando en el Archivo INET"
La literatura, el arte y el saber médico en Almas y cerebros de Enrique Gómez Carrillo
Authors: Iriarte Ignacio
Published: December 2021

Las relaciones entre literatura y medicina constituyen uno de los temas centrales en la literatura de fines del siglo XIX. En este artículo me refiero a la cuestión a través de dos textos de Enrique Gómez Carrillo, publicados en Almas y cerebros: el cuento “Psicopatía” y el tratado “Notas sobre las enfermedades de la sensación desde el punto de vista de la literatura”. En la primera parte, describo la importancia de la psiquiatría y el modo en que la literatura se sitúa en el campo de la enfermedad. En las partes segunda y tercera, comparo el tratado de Gómez Carrillo con Psycopathia sexualis, libro de Richard von Krafft-Ebing en el que se basa el escritor. En la última, extraigo algunas conclusiones referidas a las relaciones entre la literatura y la invención del psicoanálisis.
La reedición y la reapropiación de Las veladas de la quinta, y el periodismo liberal del México del siglo XIX
Authors: Ozuna Castañeda Mariana
Published: December 2021

Este artículo propone la reedición como clave para comprender la permanencia de la estética de la sensibilidad dieciochesca, al mismo tiempo que el folletín francés se convirtió en el modelo de estilo literario en la prensa mexicana del siglo XIX. Les veillées du château (Las veladas de la quinta) de Madame de Genlis fue publicada en 1784, y gracias a su estilo y a la fama de la autora como educadora, rápidamente la obra se volvió bestseller, por ello se tradujo al inglés y al español. Propongo que las reediciones de la traducción al español de la novela fueron posibles debido a que esta fue incluida como parte del proyecto moderno para México, en el cual las mujeres debían ser esposas y educadoras. Por otra parte, el estilo romántico se instaló en el público mexicano por medio de dos periódicos importantes: El Siglo Diez y Nueve y El Monitor Republicano. Sue, Balzac, Hugo y sobre todo Dumas fueron traducidos y leídos, y se convirtieron en modelos de la nueva estética, en la cual se exhibían el crimen y las pasiones inmorales. La permanencia de la novela escrita por Madame de Genlis evidencia una práctica paralela de edición y de lectura: una pedagógica, privada y para educar una moral ciudadana en los hogares; otra de entretenimiento y para formar parte de la contemporaneidad. Ambas son diferentes aspectos de la modernidad en las prácticas de edición y de lectura del México del siglo XIX.
Idea Vilariño y Mario Benedetti: crónica de un libro inconcluso
Authors: Brando Oscar
Published: December 2021

De las circunstancias en las que coincidieron los trabajos y los días de Idea Vilariño y Mario Benedetti, este texto recorta una de los años ochenta e intenta, a partir de ella, trazar algunos círculos concéntricos en torno a las concepciones sobre la poesía, las poéticas y la tarea crítica.
Perbandingan Algoritma Klasifikasi untuk Prediksi Cacat Software dengan Pendekatan CRISP-DM
Authors: Hidayati Nurtriana , Suntoro Joko , Setiaji Galet Guntoro
Published: December 2021

Bagian terpenting dalam software quality adalah prediksi cacat software. Prediksi cacat software memanfaatkan pengukuran matriks pengujian software untuk dilakukan klasifikasi yang dapat memperkirakan kualitas modul program, secara umum hasil pengujian software dibagi menjadi dua kelas, yaitu software rentan cacat dan software tidak rentan cacat. Metode machine learning mempunyai kinerja lebih baik untuk menemukan cacat software daripada metode manual. Algoritme klasifikasi dalam machine learning yang pernah digunakan untuk prediksi cacat software antara lain k-Nearest Neighbor (k-NN), Naïve Bayes (NB) dan Decision Tree (CART). Dalam penelitian ini akan dibandingkan kinerja antara algoritme-algoritme klasifikiasi yaitu k-NN, NB, dan CART untuk prediksi cacat software. Software Matrix yang digunakan pada penelitian ini adalah tujuh dataset dari NASA MDP. Hasil penelitian menunjukkan bahwa nilai rata-rata akurasi algoritme CART lebih baik daripada algoritme k-NN dan NB dengan nilai 0,867. Sedangkan nilai rata-rata akurasi algoritme k-NN dan NB masing-masing 0,859 dan 0,778.
ABOUT SOME FEATURES OF EXPLOSIVE WELDING OF LARGE THICKNESS ALUMINUM WITH STEEL
Authors: Besschaposchnikov Y. P. , Pushkin M. S. , Inozemtsev A. V. , Patselov A. M.
Published: December 2021

The practical possibility of obtaining by explosive welding at one time of large plate aluminum with steel with a joint strength of more than 100 MPa is shown.
Pülümür Nehri (Tunceli)’ndeki Alburnus mossulensis (Mossul bleak) Heckel, 1843 ‘ün Boy-Ağırlık İlişkisi ve Kondisyon Faktörü
Authors: ÖZCAN Ebru İfakat , SERDAR Osman
Published: December 2021

Bu çalışmada; 2017 ve 2019 tarihleri arasında Pülümür Nehri'nden yakalanan Alburnus mossulensis’in Heckel, 1843 cinsiyet dağılımı, boy-ağırlık ilişkisi ve kondisyon faktörü araştırılmıştır. İncelenen bireylerin % 58,80’inin (304 adet) dişi, % 41,20’sinin (213 adet) erkek olduğu ve dişi/erkek oranının 1:0,70 olduğu belirlenmiştir. İncelenen balık örneklerinin total boyları ve ağırlıkları dişilerde 6,7-22,7 cm ve 3,5-74,3 g, erkeklerde ise 7,0-22,1 cm ve 3,6-70,2 g arasında dağılım göstermiştir. Boy-ağırlık ilişkisi dişilerde W = 0,0105L2,86 (R² = 0,92), erkeklerde W = 0,0160L2,70 (R² = 0,93) ve tüm bireylerde W= 0,0126L2,79 (R² = 0,92) olarak bulunmuştur. Elde edilen tüm bireylerden hesaplanan b değerinin %95’lik güven aralığı 2,61-3,27 olarak hesaplanmıştır ve büyümenin negatif allometrik olduğu tespit edilmiştir. Dişi, erkek ve tüm bireylerde total boy ile ağırlık arasında çok kuvvetli bir ilişki bulunduğu görülmüştür. Kondisyon faktörü değerleri dişilerde 0,456-1,237, erkeklerde 0,474-1,304 ve tüm bireylerde ise 0,456-1,237 arasında değişmektedir.
Vulnerabilidad socioeconómica ante amenazas hidrometereológicas
Authors: Paz Paredes Jaime Ernesto
Published: December 2021

La presente investigación tuvo como objetivo analizar los factores que provocan el alto nivel de vulnerabilidad socioeconómica por amenazas hidrometereológicas que inciden en el desarrollo de San José de Camarón, Ecuador. La metodología aplicada se basó en un enfoque mixto, por el alcance descriptivo y exploratorio, la población fue de 368 familias que habitan el recinto; la muestra se determinó por un muestro no probabilístico por conveniencia, en donde se trabajó con 172 sujetos, los datos se recolectaron mediante la observación, entrevista y encuestas. Como parte de los resultados se evidenció que las amenazas hidrometereológicas presentan un valor de significancia 0.894 > 0.05, lo que determina que las amenazas de sequía, inundaciones, desbordamiento de rio, deslizamiento, enfermedades en las personas y enfermedades biológicas a en cultivos, generan afectación en la población, los cultivos, la ganadera y las viviendas. En cuando a las conclusiones, se determinó que la principal acción para lograr el desarrollo sostenible está en las políticas de ordenamiento territorial, alianzas con la academia, uso de nuevas tecnologías en el sector agropecuario, programas de forestación, asociatividad y la generación de capacidades para la resiliencia, ante las amenazas naturales.
Mind Your Gap between Entry English Proficiency and Graduation Expectation
Authors: Sae-Ong Uraiwan , Mohamed Ismail Shaik Abdul Malik
Published: December 2021

In recent years, the trend of teaching and learning English as a foreign language in Thai universities have changed drastically. This can be seen by the changes in the English as a foreign language curriculum and the manner it is being taught in schools as well as in the universities. The main objective of these changes is to prepare students to participate more aggressively in the ASEAN community, where English is the universal language. Thai universities launched a new policy about English graduation requirements aligned with the Common European Framework of Reference (CEFR). One area of interest is whether there is a gap between the entry English proficiency and English graduation expectation. Thus, this study sought to gauge the gap between English oral proficiency among the Thai 1st year undergraduates and the expected exit proficiency level (B2 CEFR). Results suggest that almost all 1st-year university students in Thailand have a tremendous gap between the real entry English oral proficiency level and the high expectations exit proficiency level. This information about the gap would allow the universities to prepare their students accordingly.
PERAN AUDIT FEE DAN FAKTOR YANG MEMPENGARUHI KUALITAS AUDIT
Authors: Qatrunnada Zalfa Shafira , Sundari Siti
Published: December 2021

Abstract: This research purpose to obtain empirical evidence regarding factor that has an influence on audit quality, such as the audit firm reputation, audit tenure and auditor switching with audit fees as the moderating. Company of manufacturing consumer goods industry sector listed on the Indonesia Stock Exchange (IDX) in 2015-2019 are used as the population in this study. Used 115 samples wich determined by purposive sampling technique. This study used logistic regression analysis with SPSS v.26 as an analysis technique. The result of hypothesis test showed that audit firm reputation has no significant effect on audit quality, audit tenure has a positive and significant effect on audit quality, auditor switching has no significant effect on audit quality, audit fees are not moderate the effect of audit firm reputation on audit quality, audit fees are weaken the effect of audit tenure on audit quality, and audit fees are not moderate the effect of auditor switching on audit quality.

Abstrak: Tujuan dari penelitian berikut untuk memperoleh bukti empiris mengenai sejumlah faktor yang memberikan pengaruh terhadap kualitas audit seperti reputasi KAP, audit tenure dan auditor switching dengan audit fee sebagai pemoderasi pada perusahaan manufaktur bidang industri barang konsumsi yang terdaftar pada Bursa Efek Indonesia periode tahun 2015-2019. Sampel penelitian berjumlah 115 pengamatan yang ditetapkan dengan metode purposive sampling. Analisis data menggunakan regresi logistic dengan memanfatkan perangkat lunak SPSS v.26. Hasil penelitian menunjukkan audit tenure berpengaruh positif dan signifikan terhadap kualitas audit, sedangkan reputasi KAP dan auditor switching tidak berpengaruh signifikan terhadap kualitas audit. Selain itu, audit fee memperlemah pengaruh audit tenure terhadap kualitas audit, namun audit fee tidak mampu memoderasi pengaruh auditor switching dan reputasi KAP terhadap kualitas audit.
RANCANG BANGUN POWER SUPPLY DC DENGAN TIGA KELUARAN BERBASIS MIKROKONTROLLER
Authors: Siti Saodah  , Pajar Ramdani
Published: December 2021

Power suplai DC merupakan suatu rangkaian elektronika yang mengubah arus listrik bolak balik (AC) nenjadi arus listrik searah (DC) yang digunakan untuk mensuplai  tegangan. Dalam pembuatan rangkaian power suplai DC, dibutuhkan komponen elektronika yang terdiri dari transformator, rectifier, filetering dan IC sebagai regulator tegangan. Agar menghasilkan tegangan yang konstan, digunakan IC dengan series 78XX, dan untuk menghasilkan tegangan variabel digunakan IC LM338. Mikrokontroller digunakan sebagai pengubah nilai analog keluaran power suplai DC menjadi digital yang dapat ditampilkan di LCD. Untuk pembacaan arus, tegangan dan daya dibutuhkan sensor yang berfungsi sebagai pendeteksi sinyal yang dapat ditampilkan di LCD, sensor yang digunakan pada power suplai DC yaitu sensor arus ACS712, dan sensor tegangan dengan metode pembagi tegangan. Dari hasil pengujian, power suplai DC dapat menghasilkan tegangan konstan tanpa beban sebesar 4,96 volt dan l2 volt dan tegangan variabel 1,25 - 22,88 volt pada saat kondisi beban nol, sedangkan pada saat semua keluaran berbeban, power suplai DC mengalami drop tegangan sebesar 9,54 volt untuk keluaran konstan 12 volt dan 17,32 volt untuk keluaran variabel. Efisiensi yang didapat dari power suplai DC yang dibuat adalah sebesar 73,86%.
STUDI KOMPARASI KUALITAS DAYA ANTARA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) DENGAN PEMBANGKIT GENSET DENGAN DAYA SAMA 15 KVA
Authors: Hartono Budi Santoso  , Budiyanto
Published: December 2021

Pembangkit Listrik Tenaga Surya (PLTS) memanfaatkan radiasi matahari sebagai sumber energi yang dikonversi menjadi energi listrik menggunakan perangkat sel surya (photovoltaic). Tegangan DC dari sel surya akan dirubah menjadi listrik tegangan AC menggunakan perangkat konverter DC - AC atau dikenal sebagai perangkat inverter.

PLTS juga dapat dioperasikan bersama sumber energi lain dalam mensuplai daya listrik, baik dengan energi angin atau menggunakan pembangkit konvensional, konfigurasi ini dikenal sebagai PLTS Hibrid. Generator set atau genset pada sistem PLTS hibrid digunakan sebagai sumber energi listrik pengganti ketika tidak ada tenaga listrik yang dihasilkan dari PLTS atau ketika listrik di dalam baterai minimum, generator diesel akan bekerja untuk menghasilkan listrik yang diperlukan. Genset juga digunakan untuk mensuplai beban - beban prioitas. Bagaimana kualitas daya keluaran, dari PLTS jika dibandingkan dengan daya keluaran dari genset sehingga kedua sistem ini dapat dioperasikan secara hibrid menjadi topik kajian yang dilakukan dalam penelitian ini.
RANCANG BANGUN DC GENERATOR MAGNET PERMANEN TIPE AXIAL-FLUX PERMANENT MAGNET (AFPM) MENGGUNAKAN RANGKAIAN PENYEARAH
Authors: Hartono Budi Santoso  , I Made Wiwit Kastawan  , Asep Barkah Muhadi
Published: December 2021

DC Generator magnet permanen tipe fluk aksial atau Axial Fluxs Permanent Magnet (AFPM) menggunakan rangkaian penyearah ditujukan sebagai sumber daya input rangkaian inverter yang akan merubah DC menjadi sumber daya AC. Generator menggunakan magnet permanen sebagai sumber eksitasinya sehingga konstruksinya relatif sederhana jika dibandingkan dengan generator radial konvensional pada umumnya. Rancang bangun generator AFPM satu-fasa tipe single sidded slotted menggunakan magnet permanen memiliki karakteristik keluaran yang sangat ditentukan oleh jenis permanen magnet yang digunakan. Ada beberapa jenis magnet permanen yang dapat digunakan pada generator magnet permanen seperti jenis magnet permanen jenis ferrit /kerarnik dan Neodymium (NdFeB). Bagaimana melakukan rancang bangun DC generator AFPM menggunahan rangkaian penyearah dan melakukan pengujian karakteristik penggunaan magnet permanen khususnya pada unjuk kerja tegangan keluaran generotor AFPM, untuk melihat bagaimana distribusi fluks magnet terhadap kumparan jangkar, menjadi fokus penelitian ini. Dari pengujian berskala laboratorium diperoleh tegangan keluar tanpa beban dari generator yang berbennk sinus dengan tegangan berkisar antara 17,5 - 79,5 volt. Tegangan keluaran berbeban berkisar antara 2l V – 48 V dengan daya keluaran hingga 76 W pada variasi putaran antara 100 rpm hingga 450 rpm.
PENGUJIAN PEMBANGKITAN TEGANGAN GENERATOR AXIAL-FLUX PERMANENT MAGNET (AFPM) TIGA-FASA GANDA
Authors: I Made Wiwit Kastawan  , Rusmana
Published: December 2021

Tulisan ini membahas tentang pembuatan generator axial-flux permanent magnet (AFPM) yang dapat menghasilkan dua buah tegangan tiga-fasa dengan pergeseran sudut 30° ataa lazim dikenal sebagai tiga-fasa ganda. Tipe generator AFPM yang dibuat adalah double sided internal rotor yang memiliki sebuah piringan rotor untuk menempatkan kutub-kutub magnet generator yang diapit oleh dua buah piringan stator yang digunakan untuk menempatkan dua buah belitan jangkar tiga-fasa. Generator ini memiliki 18 kutub magnet sehingga jarak antara dua buah kutub magnet yang saling berdekatan adalah 20° mekanik. Oleh karenanya, untuk menghasilkan tegangan keluaran tiga-fasa maka, belitan-belitan fasa R, S dan T pada masing-masing piringan stator akan berjarak 13,3° mekanik. Lebih lanjut, untuk menghasilkan pergeseran fasa 30° diantara kedua buah tegangan keluaran tiga-fasa generator maka belitan tiga-fasa pada piringan stator pertama dan kedua harus diberi pergeseran sudut sebesar 3,3° mekanik. Hasil uji laboratorium menunjukkan bahwa generator AFPM yang dibuat mampu menghasilkan dua buah tegangan tiga-fasa berfrekuensi 50 Hz pada putaran 339 rpm (rotation per-minute) yaitu R1 = 44,9 Ð0° V, S1 = 39,8Ð-118° V dan T1 = 44,0Ð-237° V dengan total harmonic distortion (THD) sebesar 3,4% serta R2 = 42,82Ð-32° V, S2 = 42,7Ð-153° V dan T2 = 42,6Ð-272° V dengan THD sebesar 2,1%. Hasil pengujian ini menunjukkan bahwa generator mampu membangkitkan dua buah tegangan keluaran tiga-fasa yang memiliki bentuk gelombang mendekati sinusoidal murni dengan keseimbangan magnitudo dan fasa cukup baik karena rata-rata penyimpangannya masing-uasing hanya sebesar 1,5 V (2,5%) dan 2,4° (1,7%).
EFISIENSI ADSORBSI GAS KARBONDIOKSIDA PADA BIOGAS DENGAN MENGGUNAKAN VARIASI UKURAN ADSORBEN (KARBON AKTIF)
Authors: Purwinda Iriani  , Yanti Suprianti  , Angga Kurniawan
Published: December 2021

Penggunaan biogas sebagai sumber energi terbarukan mulai meluas, tidak hanya di sektor rumah tangga, namun hingga sektor industry. Salah satu kendala dalam menghasilkan biogas dengan nilai kalor yang tinggi adalah dengan mereduksi kandungan gas karbon dioksida yang turut terbentuk dan menjadi hasil samping dari produksi biogas. Komposisi biogas terdiri dari 20 - 45% karbon dioksida (CO2), 50 – 70% metana (CH4) dan sisanya sebigian kecil gas lain seperti H2S, CO, O2, dan N2. Upaya pengurangan kadar gas CO2 dalam suatu biogas dapat dilakukan melalui metode adsorpsi dengan menggunakan arang aktif sebagai adsorben. Persentase gas CO2 yang teradsorpsi tergantung pada luas permukaan adsorben yang dilaluinya. Pada penelitian ini, dilakukan pengujian terhadap kolam adsorber berbahan karbon aktif dengan 3 ukuran berbeda, yaitu karbon aktif ukuran 8 mesh, 16 mesh dan 32 mesh, yang dioperasikan selama 15 menit. Dari hasil pengujian menunjukkan bahwa karbon aktif ukuran 32 mesh memiliki rata-rata persentase efektivitas adsorbsi paling tinggi, yaitu 83,84%. Pada adsorben berukuran 8 mesh dan 16 mesh, masing-masing memiliki rata - rata persentase adsorbsi 61,51 %, dan 47,44 %. Dari pengujian yang telah dilakukan terlihat bahwa ukuran karbon aktif mempengaruhi efektivitas adsorbsi dalam pemurnian biogas, dan hasil pemurnian terbaik diperoleh dengan menggunakan karbon aktif ukuran 32 mesh dengan efektivitas adsorbsi 90,37% kandungan metana setelah pemurnian 88,28%, nilai kalor biogas 28.968,86 kJ/m3 dan potensi energi biogas selama 15 nenit 476,524 kJ.
LINIERISASI THERMISTOR NTC MENGGUNAKAN METODA PENGUAT INVERTING
Authors: Wahyu Budi Mursanto
Published: December 2021

Penelitian ini menggunakan sensor thermistor yang memiliki koefisien negatif atau NTC (Negatif Temperature Coefficien). Thermistor ini memiliki karakteristik yang tidak linier. Dengan karakteristik yang tidak linier tersebut, maka dilakukan metode linierisasi menggunakan metoda penguat inverting. Alat ukur temperatur ini diaplikasikan pada sistem water heater yang memililci batas pengukuran dari 15° hingga 75°C. Alat ukur ini membutuhhan sebuah rangkaian pengkondisi sinyal agar tegangan keluarannya pada 0 Volt hingga 5 Volt yang nantinya akan dibaca oleh ADC untuk ditampilkan pada layar monitor PC atau LCD display. Hasil pengujian menunjukkan bahwa penentuan resistor linierisasi "r" sebesar 3140 Ohm mampu membuat alat ukur menjadi linier (nilai R2 = 0,99909). Alat ukur temperatur yang dibuat mampu memberikan hasil pembacaan temperattur dengan tingkat kesalahan ±1°C.
PEMBUATAN DAN PENGUJIAN TURBIN ULIR DUA SUDU
Authors: Slameto  , Budi Suharto  , Ervina Fitriana Bekti
Published: December 2021

Turbin ulir mulai dikembangkan di Eropa pada akhir tahun 2007. Turbin ulir ini cocok untuk daerah sungai - sungai yang ada di Indonesia karena pengoperasian turbin ulir dapat bekerja pada head yang rendah (Head < 10). Selain turbin ulir, salah satu turbin yang dikembangkan yaitu turbin open flume. Turbin ulir yang dibuat jenis turbin ulir dua sudu. Dimensi turbin ulir disesuaikan dengan peralatan uji yang tersedia yaitu menggunakan uji turbin open flume. Ukuran dimensi turbin ulir diperoleh, diameter tnrbin 0,06 meter dan panjang turbin ulir 0,2 meter. Dari hasil pengujian diperoleh efisiensi turbin ulir dua sudu paling opimum sebesar 15.86%, dengan daya yong dihasilkan sebesar 45.84 watt, poda tegangan 143,3 Volt dan arus 0,32 ampere.
Studi sistem bahan bakar gas pada superheater untuk pengembangan bahan bakar alternatif
Authors: Bambang Puguh Manunggal, Slameto
Published: December 2021

Kebutuhan energi di Indonesia terutama penggunaan bahan bakar solar yang semakin meningkat dan emisi gas buang yang semakin tinggi menyebabkan pemanasan global merupakan permasalahan yang perlu diatasi. Untuk itu perlu adanya pengembangan bahan bakar alternatif sebagai pengganti bahan bakar minyak dengan emisi gas buang yang ramah lingkungan. Penggunaan bahan bakar gas sebagai bahan bakar alternatif untuk proses pembakaran di Superheater sangat berpeluang diterapkan di Indonesia dengan cadangan gas yang sangat melimpah. Dalam studi ini, dilakukan pengujian mesin superheater dengan menggunakan bahan bakar Solar. Data awal yang diperlukan antara lain adalah konsumsi bahan bakar, kondisi uap sebelum dan sesudah pembakaran. Analisa pengujian bahan bakar solar meliputi analisa bahan bakar dan aspek ekonomi. Dari hasil analisa tersebut dilakukan perbandingan jika seperheater beroperasi dengan menggunakan bahan bakar gas.  Hasil dari pemilihan burner gas dengan Heat Output: 18 sd 58 KW, 15.500 sd 50.000 Kcal/h dan Tekanan Gas sebesar 16 sd 200 mbar, konsumsi bahan bakar LPG sebesar1,63 kg/jam, jauh lebih rendah dibandingkan konsumsi bahan bakar solar menggunakan oil burner sebesar 3,328 kg/jam Biaya konsumsi bahan bakar LPG menggunakan gas burner sebesar Rp. 21.135/jam, lebih hemat dibandingkan biaya konsumsi bahan bakar solar menggunakan oil burner sebesar Rp. 49.000/jam. Efisiensi termal superheater meningkat dari 38,71%. menggunakan oil burner menjadi 73,51%, dengan menggunakan gas burner

 Kata kunci : Bakab bakar alternatif, Superheater, Gas Burner.
Pengaruh pemakaian bahan bakar premium, pertalite dan pertamax terhadap kinerja motor 4 tak
Authors: Maridjo, Ika Yuliyani, Angga R
Published: December 2021

Penelitian ini bertujuan untuk membandingkan pengaruh bahan bakar premium, pertalite dan pertamax terhadap kinerja motor 4 tak. Seberapa besar pengaruh pemakaian berbagai bahan bakar terhadap kinerja mesin yang meliputi torsi, daya, putaran dan konsumsi bahan bakar. Dengan nilai oktan bahan bakar yang berbeda dan kompresi akan mempengaruhi besar torsi, daya juga  konsumsi bahan bakar spesifik mesin. Mesin yang akan diuji yaitu motor 4 tak, merk Yamaha MX, 135 CC, manual. Pengujian menggunakan dynotest untuk mengetahui besarnya torsi dan daya mesin untuk berbagai variasi putaran dan uji statis dan jalan untuk menentukan konsumsi bahan bakar nya. Hasil penelitian  diperoleh torsi maksimum yang dihasilkan dari pengujian untuk bahan bakar premium 10,64 Nm pada putaran 5733 rpm; pertalite diperoleh  torsi maksimum sebesar 10.37 Nm pada putaran mesin 5773 rpm, sedangkan pada bahan bakar pertamax turbo didapat tosi maksimum sebesar 11.09 Nm pada putaran mesin 5636 rpm. Daya maksimum yang dihasilkan dari pengujian secara dynotest yaitu pada bahan bakar premium 10,1 HP pada putaran 8056 rpm ; pertalite didapat daya maksimum sebesar 10 HP pada putaran mesin 8166 rpm; sedangkan pada bahan bakar pertamax turbo didapat daya maksimum sebesar 10.3 HP pada putaran mesin 8158 rpm. Konsumsi bahan bakar yang dihasilkan dari pengujian jalan oleh bahan bakar premium 21,79ml/km; pertalite didapat nilai konsumsi bahan bakar sebesar 28.85 ml/km sedangkan bahan bakar pertamax turbo didapat nilai konsumsi bahan bakar sebesar 23.08 ml/km. Pemakaian bahan bakar premium untuk Yamaha MX 135 dibanding bahan bakar lain, torsi dan daya yang dihasilkan tidak terlalu beda nilainya, tetapi konsumsi bahan bakarnya cukup berbeda.

Kata kunci : premium, pertalite, pertamax turbo, performansi, 4 tak
Modelling computer networks for further security research
Authors: Bederna Zsolt , Szádeczky Tamás
Published: December 2021

Computer networks are usually modelled from one aspect, e.g., the physical layer of the network, although this does not allow the
researcher to understand all usage of that device. We aim to develop a model which leverages all aspects of a networked computer and,
therefore, provides complete information to the scientist for all further security research, especially that related to the social sciences.
Network science is about the analysis of any network, from social to protein. It is much easier to analyse computer networks with
technical tools than protein networks. It is, therefore, a straightforward way to crawl the web as Albert-Laszlo Barabasi did to model
its connections, nodes, and links in graph theory to analyse its internal connections. His analysis was based solely on the network layer.
Our methodology uses graph theory and network science and integrates all ISO/OSI (computer networking) layers into the model.
Each layer of the ISO/OSI model has its topology separately, but all of them also work as part of the complex system to operate the
network. It therefore creates a multipartite graph of the network under analysis. Furthermore, the virtual private networks (VPNs)
and application usage are also integrated as nodes and links. With this model, the computer network infrastructure and usage data can
be used for further non-computing related research, e.g., social science research, as it includes the usage patterns of the network users.
The Myth and Reality of Teacher Shortage in India: An Investigation Using 2019-20 Data
Authors: Datta Sandip , Gandhi Kingdon Geeta
Published: December 2021

This paper examines the widespread perception in India that the country has an acute teacher shortage of about one million teachers in public elementary schools, a view repeated in India’s National Education Policy 2020. Using official DISE data, we show that teacher vacancies cannot be equated with teacher shortages: while the number of teacher vacancies (in teacher-deficit schools) is 766,487, the number of teacher surpluses (in surplus-teacher schools) is 520,141, giving a net deficit of only 246,346 teachers in the country. Secondly, removing estimated fake student numbers from enrolment data greatly reduces the required number of teachers and raises the number of surplus teachers, converting the net deficit of 246,346 teachers into an estimated net surplus of 98,371 teachers. Thirdly, if we both remove estimated fake enrolment and also make a hypothetical change to the teacher allocation rule to adjust for the phenomenon of emptying public schools (which has slashed the national median size of public schools to a mere 63 students, and rendered many schools ‘tiny’), the estimated net teacher surplus rises to 239,800 teachers. Fourthly, we show that if government does fresh recruitment to fill the supposed approximately one-million vacancies as promised in National Education Policy 2020, the already modest national mean pupil-teacher-ratio of 25.1 would fall to 19.9, at a permanently increased fiscal cost of nearly Rupees 637 billion (USD 8.7 billion) per year in 2019-20 prices, which is higher than the individual GDPs of 50 countries that year. The paper highlights the major efficiencies that can result from evidence-based policy on minimum viable school-size, teacher allocation norms, permissible maximum pupil teacher ratios, and teacher deployment.
Big Data, Big Changes? A Survey of K-12 Science Teachers in the United States on Which Data Sources and Tools They Use in the Classroom
Authors: Rosenberg Joshua , Schultheis Elizabeth , Kjelvik Melissa , Reedy Aaron , Sultana Omiya
Published: December 2021

The tools that scientists and engineers analyze data are changing—and at the same time, science education standards have shifted to focus on science practices that articulate multiple ways for teachers to support students to make sense of data in science classrooms. Moreover, the types of data and technologies available to teachers and students to support their work with data have advanced. While these changes and features point to the importance of data, practices that relate to data, and the roles of technology, little research has offered a portrait of what teachers presently use. We report on findings from a survey conducted in the United States of 330 science teachers on the data sources, practices, and technologies common to their classroom. We found that teachers predominantly involve their students in analyzing relatively small data sets that they collect. In support of this work, teachers tend to use the technologies that are available to them—namely, calculators and spreadsheets. We discuss what these findings suggest for practice, research, and policy, with an emphasis on supporting teachers based on their needs.