bluuebunny/crossref_metadata_2025 huggingface dataset:
Toxicidad aguda oral y actividad antioxidante de la harina de las semillas de teosinte (Diion mejiae)
Authors: Marcia Jhunior , Sosa Lilian , Herrera Ramón
Published: September 2022

Antecedentes. En Honduras, el teosinte (Dioon mejiae) se cultiva desde épocas prehistóricas y su uso como alimento de consumo humano ha sido aislado y reducido. Sin embargo, sus semillas son prometedoras por altos contenidos en carbohidratos, proteínas y minerales en el afrontamiento de la inseguridad alimentaria. Objetivos. Se propuso elaborar una harina de teosinte para almacenarla a dos temperaturas en los días 0, 30, 60 y 90 después de su preparación para determinar estabilidad. Asimismo, se preparó un extracto hidroalcohólico para determinar la capacidad antioxidante y toxicidad aguda oral. Métodos. Se midieron los valores de pH de las harinas almacenadas a diversas temperaturas y tiempos. Se utilizó la técnica de DPPH para la determinación de la capacidad antioxidante del extracto y ratas wistar para evaluar la toxicidad aguda oral. Resultados. La harina de teosinte no sufrió cambios físicos después de tres meses de almacenamiento y el valor promedio de pH obtenido fue de 6.80. El mayor porcentaje de inhibición fue del 94% para una concentración de 25.00 mg/mL del extracto y no se observaron efectos tóxicos agudos en los animales de experimentación. Conclusión. La harina de teosinte es un potencial alimento funcional, por su actividad antioxidante y su nula toxicidad aguda.

Palabras clave: harina, capacidad antioxidante, toxicidad aguda oral, DPPH.
Effectiveness Distribution of Bantuan Pangan Non Tunai Rice (BPNT) through Rumah Pangan Kita (RPK) in the City of Parepare, South Sulawesi Province
Authors: Khatimah H , Nadja R A , Rukka R M , Rukmana D , Arsyad M , Hikmawaty Hikmawaty , Thamrin M
Published: September 2022

BPNT is food assistance distributed by the government in the form of non-cash to Beneficiary Families (KPM). So to support the implementation of the BPNT program, Perum Bulog provides Rumah Pangan Kita (RPK) as a means of supporting the implementation of the program. The purpose of this study was to determine the process and effectiveness of distributing BPNT rice through RPK in Parepare City.This research was conducted in Parepare City and used a quantitative descriptive method. The research sample used is 27 respondents using the criterion sampling method. The results of this study indicate that the distribution of rice to RPK carried out by Perum Bulog Subdivre Parepare includes activities: Processing orders, warehousing, packaging, and transportation. Activities carried out by staff or sections that have been determined previously. The effectiveness of BPNT distribution is measured based on four indicators of accuracy, namely quality of 65.78%, quantity of 69.78%, time of 41.63% and price of 59.56%. Then it shows that it is at the "fairly effective" level.
Analysis of Chemical Stabilizer on the Behavior of Expansive Soil
Authors: Sharma Anupama
Published: September 2022

Abstract: Rapid growth in industrialization and urbanization in developing countries like India, leads to increasing scarcity of land which forces us to utilize the available land even though it is problematic. Problematic soils are those having low bearing capacity, high compressibility and high swelling/shrinkage and as such they are not suitable for any geotechnical application. In most geotechnical engineering projects, increase in concentration of Red mud, Maximum dry density of mixture increases. The mix containing 30% Red Mud + 67% Soil + 3% Fly Ash has good bearing strength characteristics. The bearing strengths of Red Mud were increased to 7.354% on addition of Red Mud and Fly Ash in the ratios of 30% and 3% respectively. With increase in concentration of red mud, California bearing ratio increase up to a fixed concentration of Red mud. With increase in percentage concentration of Red Mud, Optimum moisture content of the mixture (Red Mud + Fly Ash + Soil) increases. With increase in concentration of Red mud, Maximum dry density of mixture increases.
Recommendation System Using Matrix Factorization
Authors: More Tejashree , Kohle Prof. Surekha
Published: September 2022

Abstract: In today’s world, people are flooded with a lot of information, and no. of choices are overwhelming. For example, in any online shopping platform such as Amazon, if we search for a particular product, thousands of results appear and it becomes very difficult to select an item from vast pool of options. The growth of digital information and the number of users over the Internet has created a potential problem of information overload. The recommendation system solves this problem by searching through a large volume of data and providing personalized content to the user. This paper describes the introduction to the recommendation system, its three main types – content-based filtering, collaborative filtering, and hybrid filtering, and addresses the data sparsity problem. This paper proposed a collaborative filtering approach using matrix factorization to mitigate the sparsity problem and improve the quality of the recommendation.
Robust Interior Point Method for Quantum Key Distribution Rate Computation
Authors: Hu Hao , Im Jiyoung , Lin Jie , Lütkenhaus Norbert , Wolkowicz Henry
Published: September 2022

Security proof methods for quantum key distribution, QKD, that are based on the numerical key rate calculation problem, are powerful in principle. However, the practicality of the methods are limited by computational resources and the efficiency and accuracy of the underlying algorithms for convex optimization. We derive a stable reformulation of the convex nonlinear semidefinite programming, SDP, model for the key rate calculation problems. We use this to develop an efficient, accurate algorithm. The stable reformulation is based on novel forms of facial reduction, FR, for both the linear constraints and nonlinear quantum relative entropy objective function. This allows for a Gauss-Newton type interior-point approach that avoids the need for perturbations to obtain strict feasibility, a technique currently used in the literature. The result is high accuracy solutions with theoretically proven lower bounds for the original QKD from the FR stable reformulation. This provides novel contributions for FR for general SDP. We report on empirical results that dramatically improve on speed and accuracy, as well as solving previously intractable problems.
Policy Gradient Approach to Compilation of Variational Quantum Circuits
Authors: Herrera-Martí David A.
Published: September 2022

We propose a method for finding approximate compilations of quantum unitary transformations, based on techniques from policy gradient reinforcement learning. The choice of a stochastic policy allows us to rephrase the optimization problem in terms of probability distributions, rather than variational gates. In this framework, the optimal configuration is found by optimizing over distribution parameters, rather than over free angles. We show numerically that this approach can be more competitive than gradient-free methods, for a comparable amount of resources, both for noiseless and noisy circuits. Another interesting feature of this approach to variational compilation is that it does not need a separate register and long-range interactions to estimate the end-point fidelity, which is an improvement over methods which rely on the Hilbert-Schmidt test. We expect these techniques to be relevant for training variational circuits in other contexts.
Ancilla-free continuous-variable SWAP test
Authors: Volkoff T. J. , Subaşı Yiğit
Published: September 2022

We propose a continuous-variable (CV) SWAP test that requires no ancilla register, thereby generalizing the ancilla-free SWAP test for qubits. In this ancilla-free CV SWAP test, the computational basis measurement is replaced by photon number-resolving measurement, and we calculate an upper bound on the error of the overlap estimate obtained from a finite Fock cutoff in the detector. As an example, we show that estimation of the overlap of pure, centered, single-mode Gaussian states of energyEand squeezed in opposite quadratures can be obtained to errorϵusing photon statistics below a Fock basis cutoffO(Eln⁡ϵ−1). This cutoff is greatly reduced toE+O(Eln⁡ϵ−1)when the states have rapidly decaying Fock tails, such as coherent states. We show how the ancilla-free CV SWAP test can be extended to many modes and applied to quantum algorithms such as variational compiling and entanglement spectroscopy in the CV setting. For the latter we also provide a new algorithm which does not have an analog in qubit systems. The ancilla-free CV SWAP test is implemented on Xanadu's 8-mode photonic processor in order to estimate the vacuum probability of a two-mode squeezed state.
On Spaces of Vector Functions that Are Holomorphic in an Angular Domain
Authors: Vlasov V. V. , Rautian N. A.
Published: September 2022

In this paper, we study spaces of vector functions that are holomorphic in the angular domain of the complex plane and with values in a separable Hilbert space. We show that, equipped with the appropriate norms, these spaces are Hilbert spaces.
Models of Self-Adjoint and Unitary Operators in Pontryagin Spaces
Authors: Strauss V. A.
Published: September 2022

This paper represents a revised version of the lectures, delivered by the author at KROMSH-2019. These lectures are devoted to describing a few different ways of constructing a model representation for self-adjoint and unitary operators acting in Pontryagin spaces, and a comparison between them. Two of these models are based on the regularized integral Krein-Langer representation of a numerical sequence generated by the powers of a self-adjoint (in the sense of Pontryagin spaces) operator. The steps to deduce both this representation and the spectral function of the corresponding operator are given. In both models (first of which belongs to the author of this paper), the operator is realized as an operator of multiplication by an independent variable, but the space of functions in which it acts is different for each of the models. The third model, introduced by V. S. Shulman, is based on his own concept of a quasi-vector.
DOA algorithm implementation by using HFSS to improve the accuracy of ADAS applications
Authors: Alimoor Huthayfa , Chen Xiao Nan , Arsahd Jehangir
Published: September 2022

Traffic safety is one of the essential fundamentals in the field of
‘advanced driver assistance systems (ADAS)’ vehicles. Moreover, these
vehicles became popular among many people due to their safety,
reliability, and ability to follow traffic rules. Therefore, many car
companies seek to improve their safety and intelligence capabilities by
conducting experiments in expected and unexpected circumstances. Thus,
roads dedicated to these vehicles are being built in many countries to
support these industries; However, many of these experiments remain
challenging to conduct in certain conditions, especially when various
possibilities demand many trials to practice dealing with them. This
study uses the ANSYS HFSS algorithm to simulate an ‘ADAS’ scenario. The
simulation data will then be extracted and analyzed in MATLAB to
determine the ‘direction of arrival (DOA)’ by using the well-known
algorithm ‘multiple signal classification (MUSIC)’. After implementing
the ‘MUSIC’ algorithm, the results showed high accuracy in determining
the ‘DOA’. This research demonstrates that simulation results have a
promising potential for accelerating the development of safe autonomous
vehicular technology. The same methodology applies to developing new
cellular communication technologies such as 5G and 6G antenna
beamforming technology.
The amygdala-ventral pallidum pathway contributes to a hypodopaminergic state in the ventral tegmental area during protracted abstinence from chronic cocaine
Authors: Salin Adelie , Dugast Emilie , Lardeux Virignie , Solinas Marcello , belujon pauline
Published: September 2022

Background and Purpose Incubation of craving is associated with temporal
changes in the activity of several structures involved in drug-seeking
behavior. Hypodopaminergic activity, responsible for negative emotional
states, has been reported in the ventral tegmental area (VTA) during
cocaine abstinence. The neuroadaptations underlying the VTA
hyperdopaminergic state after chronic cocaine is not well understood. In
this work, we investigated the potential involvement of a VTA inhibiting
circuit (amygdala-ventral pallidum (VP) pathway) in the hypodopaminergic
state during abstinence from chronic cocaine. Experimental Approach In a
model of cocaine self-administration, we performed in vivo
electrophysiological recordings of DA VTA neurons and basolateral
amygdala (BLA) neurons from anesthetized rats during early and
protracted abstinence and evaluated the involvement of the BLA-VP
pathway using a pharmacological approach. Key Results We found a
significant decrease of VTA DA population activity and a significant
increase of BLA activity after 30 days of abstinence from chronic
cocaine but not one day. The decrease in VTA DA activity was restored by
pharmacological inhibition of the activity of either the BLA or the VP.
Conclusion and Implications Our study sheds new lights on
neuroadaptations occurring during incubation of craving leading to
relapse. In particular, we described the involvement of the BLA-VP
pathway in cocaine-induced decreases of DA activity in the VTA. This
study adds an important building block to the characterization of
specific brain network dysfunctions underlying hypodopaminergic activity
during abstinence.
Ecological aspects of peat, straw, and wood ash application for energy willow cultivation
Authors: Rodzkin Aleh , Krstic Borivoj
Published: September 2022

The utilization of ash obtained as a result of the combustion of fossil fuels
(coal, peat) or biomass (straw, wood, solid waste) is an environmental
problem that should be optimally solved. The chemical characteristics of ash
depend on several factors, mostly on sources of fuel. According to
characteristics, ash can be used in agriculture, forestry, or utilized for
other purposes. The content of heavy metals (Cd, Ni, Pb, Cr) in peat ash is
several times higher than in willow wood ash and straw ash. It means that
peat ash application is limited to agricultural crops and its optimal
application is one year before planting SRC trees, especially on poor and
acid soils. The application of peat ash at a dose of 10 mg dry mass ha-1 in
willow plantations on post-mining peaty soils changed soil acidity from 5.2
pH to 5.88 pH and stimulated tree growth. Wood and straw ash was applied to
wil?low plantations on arable loam-sandy soils in doses 0.5, 1.0, and 1.5 t
dry mass ha-1. The positive effect of ash application in doses 1.0 and 1.5 t
dry mass ha-1 showed in the second year after the application both for soil
and for willow growth.
Quechers approach to the Alternaria mycotoxins detection in wheat: The recovery study
Authors: Bursic Vojislava , Vukovic Gorica , Stojanovic Tijana , Marinkovic Dusan , Puvaca Nikola , Petrovic Aleksandra , Konstantinovic Bojan , Popov Milena , Samardzic Natasa
Published: September 2022

The performance of the QuEChERS extraction followed by the LC-MS/ MS
analytical method was evaluated in terms of Alternaria mycotoxins recovery
from the wheat. The alternariol (AOH), tentoxin (TEN) and alternariol
monomethyl ether (AME) were analyzed using the ESI+ (electrospray positive
ionization) by multiple reactions mon?itoring mode (MRM). In order to
determine the recovery, the blank wheat samples were spiked at two spiking
levels (0.01 and 0.1 mg/kg) in six replicates. The obtained average
recoveries and precisions (expressed as the RSDr, %) were as follows: 107.6%
(RSDr of 6.84%) for alternariol, 108.0% (RSDr of 6.78%) for tentoxin and
110.1% (RSDr of 6.50%) for alternariol monomethyl ether. The results of this
study were in accordance with the Commission Decision 2002/657/EC and
Commission Regulation (EC) No 401/2006.
Psychological wellbeing early adult Korean pop fangirls
Authors: Fitri Angelita Jayalaksana , Maulidayanti Fitri Yuli , Akhmad Sudaryat Nurdin
Published: September 2022

Mental health is a state of well-being in which individuals are aware of their abilities, can cope with the normal stresses of daily life, can work productively or productively, and are able to contribute to their community. Individuals at the age from 20 to 40 years are called early adulthood. In the last two decades, South Korean popular culture has grown rapidly and expanded globally. Its existence which is accepted by the public from various circles has resulted in a phenomenon Korean Wave, one of which is the phenomenon in Korean Wave Korean pop music products or Korean-pop (K-pop). This study uses the study of literature (literature review) with data collection of articles, journals and books. The results showed that there was mental health (psychological wellbeing) in early adulthood for fangirls K-pop.
Academic Information System Assessment of AKRB Yogyakarta Using UTAUT
Authors: Reza Lukman , Sunardi Sunardi , Herman Herman
Published: September 2022

Implementation of Academic Information System (AIS) at the Radya Binatama Communication Academy (AKRB) had some problems for some users. That problems are known from interviews with several AIS users. This caused a delay in data exchange with other divisions. This study aims to assess the implementation of AIS to the AKRB by using the Unified Theory of Acceptance and Use of Technology (UTAUT) method. UTAUT has four main constructs that affect user acceptance namely performance expectations, effort expectations, social influences, and facilitating conditions. The data were obtained from distributing questionnaires to all AIS users as many as 40 respondents. Then the data is processed using Structural Equation Modeling (SEM) techniques with the help of SmartPLS. The results of the analysis show that only construct facilitating conditions is valid with a t-statistic value of 2.733. While the other three constructs have values that are in the range of invalid values between -1.96 to 1.96 with the values of each construct being 1.891, 0.050, 1.440. It can be concluded that the application of SIA in AKRB has not been well received by all AIS users. Therefore, it is necessary to conduct an evaluation that represents the other three constructs.
Numerical study of turbine rim seals performance with different sealing structures
Authors: Bai T. , Yang Q. , Liu J. , Shi Y. , Qiao S.
Published: September 2022

The unsteady large-scale vortex near the turbine rim has an important influence on the sealing performance. Characteristics and performance of four sealing structures are researched in this paper. Three-dimensional unsteady numerical simulation was adopted to deeply reveal the characteristics of the rim sealing vortex and its influence mechanism on the rim sealing performance. The results show that the rim seal vortex structure induced by the interaction between ingested gas and sealing flow in the gap is the leading cause of unsteady flow in the rim. The vortex size is suppressed with the increasing seal flow rate or a Chute seal structure. However, the rim seal vortex exit in the cavity gap under a low seal flow rate can suppress the gas intrusion and improve the sealing efficiency of the turbine cavity even with a simple sealing structure. The Chute sealing structure achieves better performance among the four sealing structures studied in this paper. It can achieve complete sealing under a low sealing flow rate of 0.5% and has less impact on the aerodynamic performance of the mainstream even with high sealing flow rate. The research of this paper has guiding significance for further understanding the sealing mechanism and optimizing the design of the sealing structures.
Avaliação da Percepção do Idoso sobre a Usabilidade dos Sistemas de Abertura de Embalagens Alimentícias
Authors: Nascimento Valter Oliveira Nascimento , Itamar Ferreira da Silva  , Ellen Vitória Diniz da Silva
Published: September 2022

Esta pesquisa teve como objetivo principal avaliar a percepção dos idosos sobre a usabilidade dos sistemas de abertura de embalagens alimentícias. A metodologia utilizada foi fundamentada em procedimentos experimentais e caracterizou-se por ter objetivos exploratórios. O levantamento dos dados foi realizado em duas fases. A primeira consistiu em levantar os sistemas de abertura de embalagens de alimentos existentes no mercado e selecionar três embalagens (vinagre, biscoito e milho/ervilha) para o teste de usabilidade. Na segunda aconteceu à seleção dos idosos; A aplicação do Questionário 1 (Usabilidade Percebida), que teve a finalidade de investigar como o idoso percebe o produto sem manuseá-lo; O Teste de Usabilidade com aplicação do Questionário 2 (SUS - System Usability Scale), que teve o intuito de avaliar as medidas de eficácia, eficiência e satisfação e por fim, a aplicação do Questionário 3, para averiguar se os sistemas de abertura das embalagens selecionadas estavam adequados aos sete princípios do Design Universal. Os resultados da Usabilidade Percebida evidenciou que 88,88% dos idosos achavam que conseguiriam abrir as embalagens apenas com as mãos, com facilidade. O que não aconteceu! Para todas as medidas de usabilidade: eficácia, eficiência e satisfação às mulheres obtiveram melhores resultados em relação aos homens. Sendo a embalagem de milho/ervilha (Tetra Pak) a que apresentou os maiores problemas de usabilidade, não satisfazendo mais de 90% dos idosos. Em sequência, o Questionário 3 mostrou que os sistemas de abertura da embalagens de milho/ervilha não estavam compatível com cinco, dos sete princípios do Design Universal e tendo um índice de eficácia por parte do grupo dos idosos abaixo de 30% em média. A investigação revelou que o sistema de abertura (fitilho abre fácil) da embalagem do biscoito foi o que teve maior aceitação entre os idosos com média de satisfação de 77,5%. Além de ressaltar a predominância das mulheres com os melhores resultados em completude das tarefas, desempenho e satisfação. A pesquisa concluiu que para entender a percepção do usuário no processo de interação com embalagens é primordial a realização de testes de usabilidade.
Análise da Interação entre Cadeirante e Refrigerador Doméstico
Authors: Ferreira Luiz Afrânio Alves , Silva Danilo Corrêa , Cavalcanti Anna Luiza Moraes de Sá , Ribeiro Rosinei Batista
Published: September 2022

Os refrigeradores domésticos são bens amplamente difundidos entre a população brasileira. No entanto, as características desse produto podem representar um desafio às Pessoas com Deficiência (PCDs), em especial ao público cadeirante. Há poucas diretrizes ou normativas para o design de refrigeradores acessíveis a esse público, bem como estudos sobre a sua interação com esse equipamento. Um estudo preliminar apontou que uma parte considerável do volume desse equipamento está fora da zona de alcance dos cadeirantes, o que indicaria prejuízos no seu uso. Esse artigo apresenta os resultados parciais de um projeto desenvolvido no âmbito do [omitido para revisão cega]. O objetivo desse artigo é avaliar a percepção de uso dos refrigeradores domésticos por parte do público cadeirante. Para isso, a pesquisa contou com uma etapa bibliográfica e uma etapa em campo, na qual indivíduos cadeirantes registraram algumas atividades de aproximação e alcance de itens no interior dos refrigeradores, bem como suas percepções a respeito do produto. Os resultados apontam que há diversos atritos na interação, com prejuízo do acesso de grande parte do volume disponível no equipamento, dificuldades no alcance de puxadores e até mesmo colisões entre a cadeira de rodas e os refrigeradores domésticos. Além disso, as percepções dos usuários sobre esse equipamento também são indicativas de um nível de insatisfação com o produto. Conclui-se que há diversas oportunidades de desenvolvimento no projeto desses equipamentos, ainda mais quando se consideram as necessidades das PCDs. Por fim, há ainda uma necessidade de normas ou diretrizes específicas para promover a inclusão do público cadeirante no que tange eletrodomésticos.
Design de joias: proposição de metodologia para ensino voltado ao mercado joalheiro
Authors: Cidade Mariana Kuhl , Palombini Felipe Luis
Published: September 2022

A joalheria é uma atividade técnico-artística executada por profissionais com variadas formações, desde designers, arquitetos, engenheiros, artistas e outros. Historicamente, a joalheria vem evoluindo não apenas com relação a materiais, processos de fabricação e estilos, mas com novos métodos de criação e desenvolvimento. Recentemente, com uma maior implementação de práticas instrucionais de joalheria, tanto em nível superior quanto em cursos de aperfeiçoamento, nota-se uma carência de metodologias específicas voltadas à esta área, que possam ser empregadas tanto no meio acadêmico quanto profissional, a partir da formação do aluno. Este artigo apresenta uma proposição de metodologia para instrução de design de joias, com o objetivo de mostrar ao discente diferentes perfis que envolvem a cadeia produtiva para capacitá-lo a atuar no ramo. Foram conduzidas entrevistas informais com profissionais da área com diferentes estilos de projeto, levando à identificação de características essenciais para a construção de um determinado perfil de atuação em joalheria. A partir dessas propriedades, foi elaborada uma metodologia abrangendo desde a motivação inicial do projeto, passando por etapas de identificação de tipo de atuação, definição de problema, pesquisa, elaboração de conceito e requisitos de projeto, execução de processo criativos e de fabricação, até a validação da peça obtida. Por fim, destaca-se que a metodologia proposta surge como uma base para diferentes níveis de ensino, para que o aluno possa conhecer as etapas gerais da cadeia produtiva e se tornar apto a seguir profissionalmente, mas que, sobretudo, possa adaptá-la conforme seu fluxo de trabalho e seu modo preferido de atuação.
Escultura Anamórfica: Percepção e Design Visual
Authors: Grimaldi Madalena , Nogueira da Silva Cristiano
Published: September 2022

Este artigo é fruto de uma pesquisa realizada no Mestrado em Design oferecido pela [Omitido para revisão cega], e tem por objetivo potencializar, no campo do design, a anamorfose como veículo de comunicação que produz efeitos visuais inusitados, podendo gerar ideias e sensações de cunho reflexivo. O estudo apresenta um experimento ilusório e as discrepâncias perceptuais que surgiram da interação entre observadores e a obra criada. Para fundamentar a investigação foram relacionadas questões que envolvem a percepção visual e os aspectos fisiológicos e psicológicos, tendo por base as teorias de inferência e cognição. Também se delineia o conceito de Anamorfose, bem como os procedimentos construtivos para essas intervenções, que criam condições de ilusão com base no posicionamento do observador, e sua aplicação no design. Como construção prática, descreve-se o processo de criação e montagem de uma escultura anamórfica, intitulada Liberdade e Servidão. O nome escolhido para a obra visou fazer alusão a questões emocionais e racionais particulares de cada observador, induzindo a construir expectativas ancoradas na memória e na imaginação. O enfoque artístico da instalação foi estruturado com o propósito de provocar um pensamento crítico reflexivo, diante da percepção da ilusão. A pesquisa de campo foi realizada por meio de observação participante e a conduta dos passantes foi avaliada de forma neutra pelo pesquisador, durante o mês de junho de 2018 e registrada em detalhes, num diário de campo. Para aumentar a abrangência da coleta de dados foram produzidos um vídeo e um cartaz divulgados nas redes sociais. Como contribuições o estudo aponta que a percepção é um processo singular e abstrato que correlaciona aspectos subjetivos com a memória e desta forma, a anamorfose pode funcionar como um instrumental útil no campo do design visual, servindo como disparador de "suposições" que desperta o interesse e a imaginação do fruidor.
Hubungan Electronic Word of Mouth dan Ekuitas Merek Terhadap Loyalitas Konsumen HP Samsung
Authors: Fazrin Alaina , Rizy Safira Mazaya
Published: September 2022

Persaingan di dunia smartphone sangat lah ketat. Dengan persaingan yang semakin ketat membuat perusahaan membutuhkan produk berkualitas tinggi dan saling bersaing agar dapat dipilih oleh konsumen, salah satunya Merek HP Samsung. Saat ini salah satu cara yang dianggap efektif untuk menyebarluaskan suatu barang atau jasa yaitu dengan komunikasi electronic word of mouth (eWOM). eWOM adalah strategi yang dapat digunakan oleh praktisi PR untuk menunjang terciptanya citra dan reputasi yang baik untuk perusahaan. Bertukar atau berbagi pendapat sangat memungkinkan melalui komunikasi word of mouth secara elektronik. Salah satu bentuk dari eWOM marketing adalah media sosial seperti instagram. Instagram merupakan media sosial yang penting sebagai alat komunikasi pemasaran. Tujuan dari penelitian ini yaitu untuk menganalisis hubungan electronic word of mouth dan ekuitas merek terhadap loyalitas konsumen. Dalam penelitian ini, metode yang digunakan adalah metode kuantitatif. Responden dari penelitian ini adalah mahasiswa pengguna HP Samsung di wilayah Jakarta. Teknik sampling yang digunakan dalam penelitian ini adalah Non-probability sampling dengan metode purposive sampling. Penentuan jumlah sampel menggunakan rumus Lemeshow untuk populasi yang tidak diketahui. Hasil penelitian menunjukkan bahwa, Electronic Word of Mouth (eWOM) di Instagram memiliki hubungan yang positif dan signifikan terhadap ekuitas merek dan loyalitas konsumen.  Melalui e-wom yang baik dan positif akan membentuk pula ekuitas merek suatu produk dengan baik di mata konsumen dan menjadikan konsumen loyal terhadap produk dan perusahaan tersebut.
Strategi Divisi Corporate Communication PT Krakatau Steel dalam Upaya Perbaikan Citra Melalui Program CSR
Authors: Hawali Novaldi , Andiyansari Popi
Published: September 2022

Berdasarkan data pada tahun 2015, PT Krakatau Steel dalam kegiatannya mempunyai 5 sektor bidang UKM dan 6 kegiatan CSR pada bidang Bina Lingkungan. Ihat Sulihat (Muhit) merupakan Mitra Binaan unggulan PT Krakatau Steel (Persero) Tbk yang sukses berkat CSR PT Krakatau Steel (Persero) Tbk pada tahun 1997. Fenomena tersebut kemudian kembali dipublikasikan oleh Divisi Corporate Communication PT Krakatau Steel (Persero) Tbk dalam upaya perbaikan citra perusahaan. Penelitian ini bertujuan untuk mengetahui peran dan strategi Divisi Corporate Communication PT Krakatau Steel (Persero) Tbk dalam memanfaatkan CSR Mitra Binaan Sektor Peternakan UKM Bebek Ihat Sulihat sebagai upaya dalam perbaikan citra. Metode penelitian yang digunakan adalah metode deskriptif kualitatif. Metode pengumpulan data dengan menggunakan observasi, wawancara, dan dokumentasi. Metode analisis data yang digunakan adalah model audit sosial kehumasan untuk menggali informasi secara rinci, lengkap, dan mendalam melalui wawancara.  Hasil penelitian ini menunjukan bahwa usaha Ihat Sulihat yang kini sukses berkat CSR yang dilakukan oleh PT KS pada tahun 1997. Divisi Corcom PT KS kembali melakukan publikasi CSR Ihat Sulihat karena pertengahan 2019 PT KS diterpa permasalahan terkait perusahaan. Pemberitaan Ihat Sulihat kemudian dipublikasi oleh Divisi Corcom PT KS melalui media internal dan eskternal yang dimiliki. Hal ini dilakukan untuk menanamkan persepsi positif dipublik internal dan eskternal PT KS.
PENGARUH MODEL TIME TOKEN TERHADAP KETERAMPILAN BERBICARA SISWA KELAS V SD NEGERI 16 INDRALAYA UTARA
Authors: Al-Rifqi Irza
Published: September 2022

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran time token terhadap keterampilan berbicara siswa kelas V SD Negeri 16 Indralaya Utara. Jenis penelitian ini adalah penelitian eksperimen dengan desain penelitian pretest-posttest control group design, sedangkan untuk subjek penelitian adalah siswa kelas V SD Negeri 16 Indralaya Utara. Kelas VA sebagai kelas eksperimen dengan jumlah siswa 22 dan kelas VB Sebagai kelas kontrol dengan jumlah siswa 20. Teknik pengumpulan data menggunakan tes, tes yang dimaksud adalah tes lisan (kemampuan berbicara) yaitu dengan cara menanyakan satu persatu materi pelajaran kepada seluruh siswa. Pengujian hipotesis dalam penelitian ini menggunakan uji t (t-test sampel related).Berdasarkan hasil penelitian maka dapat disimpulkan rata-rata nilai posttest pada kelas eksperimen adalah 78,18 dan untuk kelas kontrol adalah 60. Dari hasil pengujian hipotesis diperoleh thitung > ttabel (5,469 > 2,024), dengan taraf signifikan 0,05 maka dapat dinyatakan Ha diterima. Dapat disimpulkan bahwa adanya pengaruh penggunaan model pembelajaran time token terhadap keterampilan berbicara siswa kelas V SD Negeri 16 Indralaya Utara. Kata Kunci : Model pembelajaran time token, Keterampilan berbicara.
PENGEMBANGAN KOMIK MITIGASI BENCANA ALAM DI PEKANBARU UNTUK SISWA SEKOLAH DASAR SDN 21 PEKANBARU
Authors: Yunsi Yulia
Published: September 2022

Abstrak: Media pembelajaran adalah benda yang ada dilingkungan sekitar yaitu yang dapat dilihat, didengar dan diraba oleh panca indera yang membantu dalam menyampaikan pesan dapat digunakan dalam suatu pembelajaran di luar dan dalam kelas. Penelitian ini bertujuan untuk  mengembangkan media komik mitigasi bencana alam untuk menunjang proses pembelajaran. Pada Penelitian ini menggunakan model pengembangan ADDIE yang  terdiri dari Analisis (Analysis), Perancangan (Design), Pengembangan (Development), Implementasi (Implementation), Evaluasi (Evaluation). Namun dalam penelitian ini, peneliti hanya mengambil tahap pertama-tahap ketiga.. Instrumen pengumpulan data yang digunakan yaitu angket yang diberikan kepada validator materi, validator desain dan validator bahasa untuk menilai kemenarikan dan isi dari e-monopoli edukatif. Jenis data yang didapatkan yaitu data kualitatif berupa saran dan kritik dari 6 validator dan data kuantitatif berupa jumlah (angka) dari 6 validator. Penelitian ini menghasilkan media komik mitigasi bencana alam yang dapat dipakai untuk SD sebagai media yang sudah memenuhi krikteria sangat valid, skor rata-rata validasi 1: materi 86,46%, bahasa 75% dan desain 91,07%. skor rata-rata validasi 2: materi 92,71 %, bahasa 88,85% dan desain 94,65%. Validasi dilakukan 2 kali karena sudah mendapatkan nilai yang sangat valid dengan persentase kelayakan 91,97% setelah dilakukannya validasi kedua. Media mitigasi bencana alam sudah layak digunakan untuk proses pembelajaran.Kata kunci :  Media, Mitigasi, Bencana alam
UPAYA MENINGKATKAN HASIL BELAJAR SUDUT BERELASI DI BERBAGAI KUADRAN DENGAN MENGGUNAKAN e-MODUL PADA SISWA KELAS X TKJ 3 SMKN 4 PEKANBARU TAHUN 2019
Authors: Fitriani Fitriani
Published: September 2022

Efforts to Improve Related Angle Learning Outcomes In Various Quadrants By Using E-Modules In Class X Students Of Tkj 3 Smkn 4 Pekanbaru In 2019. the problem to be studied in this action research is: can using e-modules improve learning outcomes of related angles in various quadrants in class X TKJ3 students of SMK Negeri 4 Pekanbaru city in 2019. The research objectives to be obtained are: (a) To determine the learning activities of students in mathematics by using e-modules. (b) To improve student learning outcomes in class X TKJ3 SMKN 4 Pekanbaru. This study uses two rounds of action research. Each round consists of four stages, namely: design, activities and observations, reflection, and revision. The target of this research is the students of Class X TKJ3. The data obtained in the form of formative test results, observation sheets of teaching and learning activities. Based on the results of observations and data processing that there was an increase in student learning outcomes in the second cycle where all activities increased with an average percentage of 77.38% and included in the Very Good category. In general, the average student learning activity in the first cycle was 3.8 with a Good category, while in Cycle II the average student activity became 4.1 with a Very Good category. The average student learning activities in cycles I and II are in the Good category. Based on the data above, the writer concludes that e-modules can improve learning outcomes related angles in various quadrants in mathematics subjects and have a positive impact on student learning activities, especially in class X TKJ3 students.
INSTRUMEN EVALUASI PROGRAM PENDIDIKAN DI MTS LAB. UINSU, MEDAN
Authors: Miranda Nisa
Published: September 2022

Abstract : Training is seen as the primary method for dealing with different social issues in many countries, and for certain issues, public government assistance rests on the shoulders of schools and colleges. The implementation of the instructive program must be seen from a different perspective. This point of view combines public authorities as strategy creators, clients and regions as teachers in proportion to program continuity. The evaluation, called program assessment, is expected to be able to decide the outcome of the instructive program being run. This is often referred to as an educational program assessment, basically because it assesses an educational program. Ranking empowers students to effectively take part in long-term learning, educators to work more on the nature of the educational experience, and schools to work more on the tools and nature of board schools. However, relying solely on student implementation and educational evaluation to assess the progress of a learning program is not enough. Evaluation is a movement to collect valuable data for an independent direction and is used as a proportion of the extent to which a goal can be achieved. Program assessment is a technique for deciding project implementation by comparing the program and the specific measures or objectives achieved and the results achieved.Keywords: Program Evaluation, Instrument, EducationAbstrak : Pelatihan dipandang sebagai metode utama untuk menangani isu-isu sosial yang berbeda di banyak negara, dan untuk isu-isu tertentu, bantuan pemerintah publik berada di pundak sekolah dan perguruan tinggi. Pelaksanaan program instruktif harus terlihat menurut perspektif yang berbeda. Sudut pandang ini menggabungkan otoritas publik sebagai pencipta strategi, klien dan daerah sebagai guru sebanding dengan kelangsungan program. Evaluasi yang disebut penilaian program diharapkan dapat memutuskan hasil dari program instruktif yang dijalankan. Hal ini sering disebut sebagai penilaian program edukatif, pada dasarnya karena menilai sebuah program edukatif. Peringkat memberdayakan siswa untuk secara efektif mengambil bagian dalam pembelajaran jangka panjang, pendidik untuk lebih bekerja pada sifat pengalaman pendidikan, dan sekolah untuk lebih bekerja pada peralatan dan sifat sekolah dewan. Namun, hanya bergantung pada pelaksanaan siswa dan evaluasi pendidikan untuk menilai kemajuan program pembelajaran tidak cukup. Evaluasi adalah gerakan untuk mengumpulkan data yang berharga untuk arah independen dan digunakan sebagai proporsi sejauh mana suatu tujuan dapat dicapai. Penilaian program adalah teknik untuk memutuskan pelaksanaan proyek dengan membandingkan program dan ukuran atau tujuan tertentu yang dicapai dan hasil yang dicapai.Kata Kunci : Evaluasi Program, Instrumen, Pendidikan
KONSEPSI MANAJEMEN MUTU PENDIDIKAN
Authors: Kembaren Rusli
Published: September 2022

Abstract:  Education Quality Management Concept. This journal aims to provide an explanation of the concept of quality, school quality and the quality of educational institutions. This journal also focuses on the quality of education managed by professional institutions through integrated quality management. Educational institutions as producers of the service sector must pay attention to the quality, the quality of the managerial and academic aspects. Both of these aspects can be achieved through the application of the concept of total quality management (TQM). TQM is a management concept that places all university personnel (academics) as individuals who have responsibility for quality in accordance with their duties and functions. Quality of education is the degree of excellence in managing education effectively and efficiently to give birth to academic and extracurricular excellence in students who are declared to have passed for one level of education or completed a certain learning program. National Education Standards aim to ensure the quality of national education in the context of educating the nation's life and shaping the character and civilization of a dignified nation. National Education Standards are refined in a planned, directed, and sustainable manner in accordance with the changing demands of local, national, and global life.  Keywords: Conception of Quality Educational
Pengaruh Metode Eksperimen Terhadap Kemampuan Sains Anak Usia 5-6 Tahun Di TK Salsa Percut Sei Tuan T.A. 2014/2015
Authors: Kamtini Kamtini , Khairani Mesra
Published: September 2022

Permasalahan dalam penelitian ini adalah tentang sains anak yang belum berkembang dengan baik. Hal tersebut dikarenakan kegiatan sains masih bersifat biasa sehingga anak bosan ketika belajar, kegiatan pembelajaran masih berpusat pada guru sehingga kurang memberikan kesempatan kepada anak untuk melakukan eksperimen, metode pembelajaran yang digunakan guru kurang bervariasi terutama dalam penggunaan metode eksperimen, hanya 17 dari 33 anak atau sekitar 52% kurang mampu menggunakan inderanya saat melakukan percobaan dan 21 dari 33 anak atau sekitar 64% susah mengungkapkan sebab dan akibat yang terjadi dari suatu percobaan. Penelitian ini bertujuan untuk mengetahui pengaruh metode eksperimen terhadap kemampuan sains anak kelompok usia 5-6 tahun di TK Salsa Percut Sei Tuan. Penelitian ini dilakukan dilembaga TK Salsa kelompok B2 sebagai kelas eksperimen dan kelompok B1 sebagai kelas kontrol. Yang ditentukan secara random dengan jumlah sampel disetiap kelas sebanyak 33 orang anak.  Jenis penelitian ini adalah penelitian eksperimen, dengan desain penelitian post test only control design. Variabel bebas adalah metode eksperimen sedangkan variabel terikat adalah kemampuan sains. Instrumen pengumpulan data adalah pedoman observasi. Data dianalisis dengan metode deskriptif dan uji hipotesis dengan uji t yang dilanjutkan dengan uji signifikasi pada taraf nyata α = 0,05.  Berdasarkan hasil analisis data diatas diperoleh rata-rata nilai ada kelas eksperimen10,24 dengan nilai tertinggi 12 dan nilai terendah 8, sehingga kemampuan sains anak pada kelas eksperimen memperoleh perbedaan yang signifikan. Sedangkan nilai rata-rata pada kelas kontrol7,15dengan nilai tertinggi 9 dan nilai terendah 5. Berdasarkan hasil tersebut hipotesis menyatakan bahwa terdapat perbedaan yang signifikan antara metode eksperimen terhadap kemampuan sains anak dan dari hasil uji hipotesis diperoleh thitung > ttabel yaitu 11,88 >1,671  pada taraf α = 0.05. Dengan demikian penggunaan metode eksperimen memiliki pengaruh yang lebih baik terhadap kemampuan sains anak dibandingkan dengan kelas control yang menerapkan  metode tanya jawab.
Pengaruh Kecerdasan Emosional, Persepsi Guru Tentang Komunikasi Interpersonal Kepala Sekolah, dan Kompensasi Terhadap Komitmen Afektif Guru TK Kecamatan Medan Perjuangan
Authors: Turnip Helena , Situmorang Benyamin , Matondang Zulkifli
Published: September 2022

Tujuan Penelitian ini yaitu untuk mengetahui pengaruh kecerdasan emosional, persepsi guru tentang komunikasi interpersonal kepala sekolah, dan kompensasi terhadap komitmen afektif guru tk kecamatan medan perjuangan, Penelitian ini menggunakan Metode Penelitian Kualitatif Teknik analisis hubungan antar variabel adalah bentuk analisis jalur (path analysis Populasi dalam penelitian ini adalah guru-guru TK sekecamatan Medan Perjuangan yang berjumlah  140 orang, sampelnya sebanyak 103 orang. Hasil dari penelitian ini yaitu 1. Kecerdasan Emosional berpengaruh langsung positif terhadap Kompensasi di TK Kecamatan Medan Perjuangan. 2. Persepsi Guru Tentang Komunikasi Interpersonal Kepala Sekolah berpengaruh langsung positif terhadap Kompensasi di TK Kecamatan Medan Perjuangan. 3. Kecerdasan Emosional berpengaruh langsung positif terhadap komitmen afektif guru di TK Kecamatan Medan Perjuangan. 4. Persepsi Guru Tentang Komunikasi Interpersonal Kepala Sekolah berpengaruh langsung positif terhadap komitmen afektif guru  di TK Kecamatan Medan Perjuangan. 5. Kompensasi berpengaruh langsung positif terhadap komitmen afektif  guru di TK Kecamatan Medan Perjuangan. Kata Kunci: Kecerdasan Emosional, Persepsi Guru Tentang Komunikasi Interpersonal Kepala Sekolah, Kompensasi, Komitmen Afektif
Pengaruh Media Busy Book Terhadap Kemampuan Berhitung Anak Usia Dini Di Taman Kanak-Kanak Fadhilah Amal 3 Padang
Authors: Amaris Della Ulfa , Rakimahwati Rakimahwati , Marlina Serli
Published: September 2022

Penelitian ini bertujuan untuk mengetahui pengaruh media busy book terhadap kemampuan berhitung anak usia dini di Taman Kanak-kanak Fadhilah Amal 3 Padang. Jenis penelitian yang digunakan adalah kuantitatif dengan metode eksperimen atau quashi experiment (eksperimen semu). Hasil penelitian terlihat bahwa kelas eksperimen dengan menggunakan media busy book memiliki nilai rata-rata yang lebih tinggi dengan nilai (82,5) dibandingkan dengan kelas kontrol (70,62) dengan menggunakan media majalah anak. Berdasarkan perhitungan t-test diperoleh bahwa thitung lebih besar dari t tabel menunjukan bahwa terdapat pengaruh yang signifikan terhadap kemampuan berhitung anak. Dengan demikian dapat disimpulkan bahwa media busy book sangat berpengaruh dalam mengembangkan kemapuan berhitung anak di Taman Kanak-kanak Fadhilah Amal 3 Padang.
Precision Multi-Response Optimization of Performance Characteristics In Wire-Cut Electric Discharge Machining (Wedm) Process
Authors: Nayak I. , Rana J.
Published: September 2022

In this paper, an effective two stage multi-response optimization technique (i.e. grey relational analysis coupled with Taguchi technique) has been applied to achieve a better performance characteristic in wire-cut electrical discharge machining (WEDM) process. A zinc coated brass wire of 0.25 mm diameter was used as tool electrode for machining a D2 tool steel specimen. Experiments were planned according to Taguchi’s L9 orthogonal array under different cutting parameters such as: pulse on time (TON), pulse off time (TOFF), peak current (IP) and wire feed rate (WF). The three quality characteristics (i.e. performance characteristics), namely cutting rate, kerf width and surface roughness have been simultaneously optimized in two different stages. It wasobserved that the cutting speed is increased by 24.60% compared to first stage/primary optimization process. From the analysis of variance (ANOVA), pulse-on time is found to be the most influencing cutting parameter having 74.91% contribution towards overall performance of the WEDM process. Finally,a confirmatory experiment has been carried out at optimum set of cutting parameters obtained from the precision optimization stage to identify the effectiveness of this proposed method. It was observed that the predicted values of the responses obtained from regression models were in good agreement with the experimental findings.