bluuebunny/crossref_metadata_2025 huggingface dataset:
NUMERICAL ANALYSIS OF THE PARAFFIN MELTING PROCESS IN A SQUARE CAVITY WITH INCREASE GRADUALLY OF HOT WALL TEMPERATURE
Authors: Korawan Agus Dwi
Published: February 2020

Paraffin as a heat storage material has many advantages but also has drawbacks, namely low thermal conductivity so that the melting time becomes long. Efforts have been made to accelerate the melting time, including by increasing a surface area of the hot wall, or also by changing the geometry. In this study was carried out by changing the temperature of the hot wall from uniform to increase gradually, uniform hot wall temperature was 330 K, increased gradually hot wall temperature was 324 K, 327 K, 330 K, 333 K, dan 336 K. Paraffin used has specifications according to reference. They have performed numerically used ANSYS software. They are using three models, namely modelA, model-B, and model-C. The study aimed to obtain liquid-solid interface contours, changes in temperature at measurement points, and changes in the liquid fraction. The results of model validation show similarities to previous studies. The results show that the melting time in the model-A is the fastest, followed by model-B and model-C.
NUMERICAL SIMULATION ON REAR SPOILER ANGLE OF MINI MPV CAR FOR CONDUCTING STABILITY AND SAFETY
Authors: Luthfie Alief Avicenna , Romahadi Dedik , Ghufron Hanif , Murtyas Solli Dwi
Published: February 2020

Spoiler attached on the rear part of a car can generate drag force and negative lift force, called downforce. This drag force can increase air resistance to the car, meanwhile, a negative lift force can improve the car’s stability and safety. Refer to many researchers, the shape and the angle of the spoiler give different aerodynamic effects and therefore give a different value of drag force and lift force. Based on these facts, this study was focused on the analysis of different spoiler angle attached to a mini MPV car to drag and lift force generated by the spoiler. The method used in this study is a numerical simulation using the Computational Fluid Dynamics (CFD) technique. The analysis was carried out at different spoiler angle and car’s speed. The spoiler angles are -20o, -10o, 0o, 10o, and 20o. The car’s speeds are 40 km/h, 60 km/h, 80 km/h, 100 km/h, and 120 km/h. Then the drag and lift force and their coefficient generated by different spoiler angles were being investigated at specified speeds. The result shows that higher spoiler angles generate higher drag and lower lift. Spoiler angles higher than 0o generate negative lift force, otherwise generate positive lift force. Therefore, to increase a car’s stability and safety, it is recommended to use a spoiler angle higher than 0o. Based on the result, it is best to use spoiler angle 10o because it generates negative lift force with -0.05 lift coefficient and 0,68 drag coefficient.
A MAPAEKF-SLAM ALGORITHM WITH RECURSIVE MEAN AND COVARIANCE OF PROCESS AND MEASUREMENT NOISE STATISTIC
Authors: Suwoyo Heru , Tian Yingzhong , Wang Wenbin , Hossain Md Musabbir , Li Long
Published: February 2020

The most popular filtering method used for solving a Simultaneous Localization and Mapping is the Extended Kalman Filter. Essentially, it requires prior stochastic knowledge both the process and measurement noise statistic. In order to avoid this requirement, these noise statistics have been defined at the beginning and kept to be fixed for the whole process. Indeed, it will satisfy the desired robustness in the case of simulation. Oppositely, due to the continuous uncertainty affected by the dynamic system under time integration, this manner is strongly not recommended. The reason is, improperly defined noise will not only degrade the filter performance but also might lead the filter to divergence condition. For this reason, there has been a strong manner well-termed as an adaptive-based strategy that commonly used to equip the classical filter for having an ability to approximate the noise statistic. Of course, by knowing the closely responsive noise statistic, the robustness and accuracy of an EKF can increase. However, most of the existed Adaptive-EKF only considered that the process and measurement noise statistic are characteristically zero-mean and responsive covariances. Accordingly, the robustness of EKF can still be enhanced. This paper presents a proposed method named as a MAPAEKF-SLAM algorithm used for solving the SLAM problem of a mobile robot, Turtlebot2. Sequentially, a classical EKF was estimated using Maximum a Posteriori. However, due to the existence of unobserved value, EKF was also smoothed one time based on the fixed-interval smoothing method. This smoothing step aims to keep-up the derivation process under MAP creation. Realistically, this proposed method was simulated and compared to the conventional one. Finally, it has been showing better accuracy in terms of Root Mean Square Error (RMSE) of both Estimated Map Coordinate (EMC) and Estimated Path Coordinate (EPC).
The Power of Place
Authors: Landstrom Catharina , Kemp Stewart
Published: February 2020

Investigating the role of geographical location in public engagement with science we examine the West Cumbria Managing Radioactive Waste Safely (MRWS) Partnership’s undertaking of one of the most extensive local public engagements with environmental risk science in the UK. The case study highlights the transformative impacts of this three-year long local engagement on both science and the public. Differently from other invited public engagements, organised as experiments controlled by scientists in spaces set aside from the everyday, the Partnership’s lay members led a process unfolding in the place that was potentially at risk. The Partnership had the authority to demand that scientists addressed issues of local interest. We frame the analysis with the notions ‘re-situating technoscience' and ‘re-assembling the public' to illuminate how scientific knowledge claims were modified and a new local public emerged, at the intersection of public engagement with science and public participation in environmental risk governance.
The Shaping of Urban Public Transport
Authors: Ingeborgrud Lina
Published: February 2020

This paper investigates the shaping of urban public transport by comparing ‘alternative leading objects’ to the car in the Norwegian cities Trondheim and Bergen. These have chosen different transport technologies, bus and light rail respectively. I draw on the concept of technological frames and illustrate how interpretations and expectations of sustainable urban mobility guide transport planning. The paper contributes to discussions in STS by exploring technological frames as ongoing practices instead of as outcomes, and as performed by what I identify as two framing coalitions. Both coalitions emphasised that Trondheim and Bergen represented different city identities and topographies. The paper demonstrates the importance of making such identities and representations of public transport systems in particular urban contexts in order to replace a car-dominated transport system. The paper draws on an observational study in two transport offices, interviews with transport planners and politicians and document studies.
Tres críticas coetáneas inéditas sobre «El sí de las niñas» de Leandro Fernández de Moratín
Authors: Deacon Philip
Published: February 2020

Recientemente, algunos estudiosos literarios han hecho referencia a las ideas de tres textos críticos que circularon a raíz del estreno de El sí de las niñas en 1806. Se encuentran versiones de estos documentos inéditos breves en la Biblioteca Nacional de España, dos de ellos copiados por el mismo Moratín. El presente artículo transcribe los textos, incorporando un manuscrito no conocido previamente, que reproduce una lectura más completa, guardado en la British Library de Londres. Las transcripciones anotadas están acompañadas de un análisis que evalúa su validez e interés en relación con el público original de la obra en 1806.
Characteristics of antebrachial fractures associated with a successful outcome among free-ranging birds of prey that received treatment in a rehabilitation program
Authors: Vergneau-Grosset Claire , Dubé Catherine , Fitzgerald Guy , Lair Stéphane
Published: February 2020

OBJECTIVE

To identify characteristics of antebrachial fractures associated with a successful outcome (ie, bird released back into the wild after regaining normal flight ability, without being returned to the rehabilitation program within 1 month afterward) for free-ranging birds of prey admitted to a rehabilitation program.

ANIMALS

620 birds of prey (representing 24 species) with antebrachial fractures admitted alive to a rehabilitation program from August 1986 through December 2015.

PROCEDURES

The medical record of each bird was reviewed to obtain information on species, age, sex, year of admission, fracture characteristics, and treatments administered. Outcome was classified as successful or unsuccessful on the basis of available data. Multivariable logistic regression was used to identify fracture characteristics associated with outcome.

RESULTS

519 of 620 (84%) birds received treatment, and a successful outcome was recorded for 245 (47%) treated birds. Birds with closed (vs open) fractures were significantly more likely to have a successful outcome. Birds with concomitant radial and ulnar fractures involving the same third of the antebrachium (vs other types of antebrachial fractures) were significantly less likely to have a successful outcome, although birds with this type of fracture were significantly more likely to have a successful outcome when the fracture was localized to the middle or distal (vs proximal) third of the antebrachium.

CONCLUSIONS AND CLINICAL RELEVANCE

The characteristics of antebrachial fractures associated with a successful or unsuccessful outcome in this study may be useful in the development of triage protocols for birds of prey in other rehabilitation centers.
PERBANDINGAN ANALISIS DISKRIMINAN DAN REGRESI LOGISTIK UNTUK MENGKLASIFIKASIKAN KELAYAKAN VISITASI PELAMAR BIDIKMISI
Authors: HIDAYATI NISA , SUKARSA I KOMANG GDE , NILAKUSMAWATI DESAK PUTU EKA
Published: February 2020

The purpose of this study is to compare discriminant analysis and logistic regression to classify the feasibility of the Bidikmisi applicant's visitation based on the classification accuracy. The results showed that the assumptions of homogeneity covariance matricies between the groups are unequal, The significant independent variable is the combined amount of parental income , parents income divided by the number of family dependents , and electricity bills , and then the results of the classification of validation data from the logistic regression analysis of 98,21% higher than the discriminant analysis of 94,64%.
MENENTUKAN SAHAM YANG EFISIEN DENGAN MENGGUNAKAN METODE CAPITAL ASSET PRICING MODEL (CAPM)
Authors: LIADI ELVINA , DHARMAWAN KOMANG , NILAKUSMAWATI DESAK PUTU EKA
Published: February 2020

CAPM has been well known as a method to select which stocks are efficient in a portfolio. The purpose of this study is to determine efficient stocks using CAPM method. Data used in this study are the monthly closing prices recorded from February 2016 to July 2018. The results of this study indicate that the CAPM is able to show efficient stocks with differences in the return and expected return of a positive or negative value of CAPM. In this study, it is found that AMAG.JK, ASBI.JK, ASJT.JK, ASMI.JK, ASRM.JK, PNIN.JK, VINS.JK, LPGI.JK, MREI.JK are efficient stocks while ABDA.JK, AHAP.JK, ASDM.JK are inefficient stocks
PEMODELAN JUMLAH KASUS PENYAKIT KUSTA DI PROVINSI JAWA TIMUR
Authors: PERTIWI NI MADE SUKMA , SUKARSA I KOMANG GDE , SUSILAWATI MADE
Published: February 2020

Spatial Autoregressive Model (SAR) is a combination of linear regression models with spatial lag in response variables that consider spatial effects.  One problem that considers spatial effects is leprosy cases. This study aims to predict the number of leprosy cases models in East Java Province and the factors that influence it. The type of data used in this study is secondary data obtained from the publication of the Health Profile of East Java Province in 2017 and the publication of the Central Statistics Agency (CSA) of East Java Province. The results of this study indicate that the SAR model can describe the number of leprosy cases in East Java Province with AIC value is 109,951 and value is 71,93%. The factors that influence the number of leprosy cases are the percentage of healthy houses and the number of health centers in each district/city in East Java Province.
PENENTUAN PORTOFOLIO OPTIMAL SAHAM YANG TERGOLONG INDEKS LQ45 MENGGUNAKAN FUNGSI UTILITAS BENTUK PANGKAT
Authors: SARI KADEK INTAN , DHARMAWAN KOMANG , HARINI LUH PUTU IDA
Published: February 2020

The proportion of a portfolio can not eliminate risk as a whole but can reduce risk compared to investing in one type of security. One way to determine the optimal portfolio is to use the rank utility function. The purpose of this study is to determine the optimal portfolio of shares of PT. Adhi Karya (Persero) Tbk. (ADHI) and PT. XL Axiata Tbk. (EXCL) for the period January 2017-December 2018 by determining expected returns, variances, standard deviations, covariates, correlation coefficients between shares, and formulating the portfolio equation into a utility function with a rank of 0.5. This study produces a utility value (U (?)) of 0.996181 which means that the level of satisfaction with the proportion of shares of the portfolio is 99.618183%. This value is very high so the proportion of each share is well performed.
OPTIMASI PENDISTRIBUSIAN PRODUK MENGGUNAKAN MODEL FUZZY MULTIOBJEKTIF CYCLICAL INVENTORY ROUTING PROBLEM
Authors: SUSANTI EKA , INDRAWATI INDRAWATI , SITEPU ROBINSON , NABILA ANNISA , WULANDARI RISKA
Published: February 2020

In distribution activities, travel time is influenced by several factors, such as vehicle conditions, traffic conditions and road conditions. Uncertain traffic conditions cause the travel time can not be defined with certainty (uncertain). If several variables are in a uncertain condition then a deterministic approach is not appropriate. Fuzzy approach, can be used to overcome uncertainty conditions. In this study, the optimal route for chicken egg delivery using the fuzzy Multiobjective Cyclical Inventory Routing Problem (FMOCIRP) model with time and cost is expressed by triangular fuzzy numbers. Model completion using Winqsb software. An optimal shipping route is obtained with a total cost of Rp 114,000 and a total delivery time of 132 minutes. The first optimal delivery route is distributor, retailer 1, retailer 2, retailer 3 and back to the distributor. The second route is distributor, retailer 5, retailer 4 and back to the distributor.
Holismo e idealismo en la Fenomenología de Hegel† Robert B. Brandom
Authors: Sánchez Martínez Sebastián
Published: February 2020

“Conciencia”, la sección inicial de la Fenomenología de Hegel, se ocupa de la comprensión del mundo físico que nos rodea. La sección siguiente, “Autoconciencia”, comienza a considerar nuestra comprensión de nosotros mismos y de los otros. Este orden de discusión no es ni arbitrario ni meramente conveniente. Por el contrario, una de las principales lecciones que hemos de aprender hacia el final del desarrollo de la “conciencia” es que nuestra mejor concepción del mundo que es el objeto de nuestras actividades cognitivas es inteligible solo como una parte de un relato que además considera la naturaleza del sujeto que se dedica a tales actividades. La razón para esta transición expositiva es un aspecto importante en el idealismo de Hegel. En este capítulo ofrezco una reconstrucción racional de un argumento que veo como el soporte de esta transición y del tipo de idealismo que esta implica.
ADVANCES IN THE PRICE-VOLUME RESEARCH: IMPLEMENTATION OF THE TODA-YAMAMOTO PROCEDURE IN THE FINANCIAL MARKETS OF SPAIN AND UNITED STATES
Authors: Martín Cervantes Pedro Antonio , Cruz Rambaud Salvador
Published: February 2020

El análisis de la relación precio-volumen ha encontrado en la causalidad de Granger un marco empírico fundamental para obtener las principales características de dicha relación. Sin embargo, también han proliferado conclusiones espurias que no siempre han tenido en cuenta la estacionariedad de las series de tiempo analizadas por esta metodología específica. En este contexto, Toda y Yamamoto (1995) desarrollaron una extensión del modelo original de Granger, que evita el problema de obtener conclusiones causales espurias, al emplear series temporales estacionarias, arbitrariamente integradas o cointegradas. Así, este procedimiento se ha convertido en una herramienta esencial en el estudio de la relación precio-volumen, aunque su grado de implementación en este campo y, en general, en la literatura científica sea relativamente reducido en comparación con la metodología “tradicional”. Por lo tanto, este artículo se basa en el procedimiento de Toda-Yamamoto y propone, prima facie, dos mercados financieros en los que, hasta donde llega nuestro conocimiento, aún no se ha implementado: los mercados financieros español y estadounidense, a través de un breve análisis causal de los índices IBEX 35 y DJIA.
ОСОБЛИВОСТІ ВЗАЄМОДІЇ КРЕАТИВНИХ ІНДУСТРІЙ ТА ФІНАНСОВИХ УСТАНОВ
Authors: Shkarlet Serhiy , Dubyna Maksym
Published: February 2020

У статті проаналізовано базові концептуальні положення взаємодії креативних індустрій та фінансових установ, розглянуто сутність категорій «креативність», «креативна економіка», «креативні індустрії» та виокремлено окремі підходи до розгляду креативної економіки, а саме: концептуальний, секторальний та процесний підходи, розглянуто основні види креативних індустрій та особливості їх взаємодії з фінансовими установами. Встановлено, що така взаємодія відбувається у двосторонньому напрямку, описано специфічні варіанти синергії між креативними індустріями та фінансовими установами. Також обґрунтовано дуалістичну природу функціонування фінансових установ у середовищі розвитку креативної економіки, сутність якої полягає, з одного боку, у наданні взаємних послуг між креативними індустріями та фінансовими установами, а з іншого – в існуванні процесів активного продукування креативної продукції банківськими та небанківськими установами.
Cost comparison among punctate midline myelotomy, intrathecal pain pump, and spinal cord epidural stimulator
Authors: Aljuboori Zaid , Meyer Kimberly , Sharma Mayur , Ball Tyler , Nauta Haring
Published: February 2020

Background:

Invasive pain procedures can be valuable tools to manage chronic pain. Here, we compared the costs of three procedures used to address chronic pain; punctate midline myelotomy (PMM), placement of a spinal cord stimulator (SCS), or placement of an intrathecal pain pump (ITPP).

Case Description:

This retrospective chart review yielded 9 patients with chronic pain syndromes; 3 had PMM, 3 had SCS, and 3 had ITPP procedures. Variables studied included; pain type, the procedures performed, and the cost of each procedure. The Wilcoxon rank-sum and one-way analysis of variance were used to compare the three groups (P < 0.05). PMM was performed for patients with chronic nonmalignant visceral pain and SCS was utilized for failed back syndrome, while ITPP was placed in two patients with chronic visceral cancer pain and one patient with chronic somatic cancer pain. The mean length of stay was significant shorter for SCS and PMM versus ITPP (e.g., 1, 3.6 ± 0.6 and 15 ± 5.6 days). The mean procedure costs were significantly higher for SCS versus PMM and ITPP (105,234, $71,087, and $79,333); for the latter PMM and ITPP, procedural costs were not significantly different.

Conclusion:

For the three pain procedures discussed in this report, PMM is the most cost-effective as it obviates the need for efficacy trials, and there are: no implant device costs, no medication refills, no maintenance costs, and no complication management costs.
Caucasian Multiculturalism, as the Burden and the Opportunity and the Private Archive of Russian Empire's Georgian General
Authors: Mania Esma
Published: February 2020

The Caucasus is considered as one of the difficult geopolitical regions. It includes Georgia, which differs from other Caucasian ethnics in religious-cultural context. Georgia, which has been strongly influenced by Persia and Ottoman Turkey for centuries, as well as by Europe, fully becomes a part of Russian Empire and gets under even stronger European influence. The 19th century Caucasus was characterized by multiculturalism that, in general, causes the atrophy of values and the marginalization of national components, as a result. The subject of our research is the private archive, namely, 700 letters of Grigol Orbeliani (1804-1883), Georgian poet, military person and public figure, the General of the Russian army. In this material, we can find the various concepts of self-identity. In this regard, it is significant to analyze what place was taken by Russian on the one hand and Eastern on the other hand phraseology and sayings in his mentality. How does Orbeliani understand and develop the phenomenon of “homeland”; what forms of tolerance does he reveal; what is his perception on Imperial, Caucasian and Georgian contexts, and so on. These very letters give us the opportunity to find not only Orbelianian contours of self-identity concept, but contributes to our attempts of marking human groups and societies’ ethnic and religious identities as well.
Technique Preparation of Woman’s Xhoke: An Important Element of Albanian Folk Costumes
Authors: Nini Silvana
Published: February 2020

Folk costumes are an important aspect of the Albanian cultural heritage. Seeing the garment as one of the brightest manifestations of the material and spiritual Albanian culture, this paper through its structure undertakes to explore, document and discuss in detail the techniques and process of the xhoke preparation, as a very important element of folk costumes, both for the function and the aesthetic role it plays. Correlational research between textile material used (type and elaboration) and dress form (cutting and sewing process, and decoration techniques) in every xhoke, taken in this study, can show as similarities and differences between those used in the village and those used in the city. Xhokes, in the village dresses, appear varied as by form, which is also indicated by their cutting schemes as well as by the compositional scheme of decorations. They preserve the local aesthetic element very well, as well as the old craftsmanship of cloth making. Xhokes (xhybet), in the city dresses, appear with the same cutting scheme, which leads to their unified form. The compositional schemes of decoration on these xhokes are approximate, especially in those xhokes where their form is the same. In producing this popular costume it was very important the combination of the material with the cutting and sewing way, functionality and the final image created.
The Influences of Managerialism in the Professional Intervention of Social Workers
Authors: Rosa Beatriz , Almeida Helena Neves
Published: February 2020

Social work, like other professions, has undergone changes in its structural basis, as well as a re-dimensioning of the professional work, which cannot be dissociated from the inevitable administrative reforms of the State and of the social policies themselves. In this research we sought to understand how the state administrative reforms, namely the managerial model of New Public Management have influenced the professional intervention of social workers in the public sector. We did so through the perceptions of the social workers about the implications of managerialism in their professional practices. It is a qualitative research, with exploratory characteristics and was carried out in a municipality in a district of Portugal. It was conducted a semi-structured interview with six social workers in the public sector, from four different sectors: Justice, Local Power, Health and Social Security. After the interviews were collected, a Characterization Grid of the sample and a SWOT Analysis Grid were used for each of the participants to assist the researcher in the Content Analysis of this investigation. The data we analyzed revealed that in all services and intervention areas there was a prevalence of characteristics of managerialism influences, which necessarily induced changes in professional practices. The collected data revealed that there are characteristics of managerialism perceived as beneficial and positive for the professional exercise and other characteristics that have brought constraints.
Human Rights and Social Work in the Brazilian Context: Diversified Language Games
Authors: Schroeder Cristiana Montibeller
Published: February 2020

This article is the result of an exploratory bibliographic study that consists in provoking reflections and presenting discussions on the theme of human rights and social service in the Brazilian context, as well as on the guarantee of rights and diversified and divergent language games. The scenario of the world crisis, in Latin America and specifically in Brazil, causes social service to face a historical and structural process of social inequality, a crisis that deeply cuts across the welfare state and the ineffectiveness of public policies. The challenges faced by social work are unquestionable as the profession faces different language games in social and political contexts that diverge between human needs and ideological interests in a constant struggle for social advances and setbacks. The approach methodology is analytical and critical, part of the analysis of concepts and perspectives from theoretical frameworks on human rights, social work and language games.
The International Organization, OSCE and Its Presence in Central Eastern Europe
Authors: Muskaj Blerina
Published: February 2020

International organizations have gained the right importance and have been named as the main actors in international relations with the end of the wars. States realized that it would be more reasonable to cooperate, thus achieving higher and faster results. For this reason, organizations of different types began to be created either by the nature of the operation or the geographic extent. Their roles and objectives have been different, some focus on the political aspects of relations between states and others have more administrative or technical functions to facilitate the work of states and form faster services to individuals. Other organizations deal with security issues and police and human rights issues. In this category are created many organisms, such as NATO, charged with state security and military interventions or the Council of Europe, with the aim of promoting democratic values, implanting them and protecting human rights. The organization that will focus on this paper is the OSCE: Organization for Security and Co-operation in Europe. Among the first created in this area, with objectives to coordinate the work in the fields of state and human security, the fight against terrorism, promotion of democracy and fundamental freedoms, environmental and economic protection, and the area of protection of Human Rights and Minorities, we will mainly see the focus of this organization in East Central Europe. During the time I've been involved with, I tried to bring a historical flow of events to understand how the OSCE missions work in the field and what is the difference with the theory and how the OSCE mission emerges CEE, as a case study Albania.
Grids to Illustrate Induction and Resonance Effects: Electrophilic Aromatic Substitution
Authors: Lamoureux Guy , Árias-Alvarez Carlos
Published: February 2020

The effect of substituents on the reactivity in electrophilic aromatic substitution has been organized in a grid to demonstrate the inductive and resonance effects. This scheme can also incorporate the competition between donation and withdrawal. In class games are proposed from which undergraduate students can practice the effects while playing.
The Cyclopropane Ring as a Reporter of Radical Leaving-Group Reactivity for Ni-Catalyzed C(sp3)–O Arylation
Authors: Mills Reginald , Monteith John. J. , Rousseaux Sophie
Published: February 2020

The ability to understand and predict reactivity is highly important for the development of new reactions. In the context of Ni-catalyzed C(sp3)–O functionalization, we have developed a unique strategy employing activated cyclopropanols to aid the design and optimization of a redox-active leaving group for C(sp3)–O arylation. In this chemistry, the cyclopropane ring acts as a reporter of leaving-group reactivity, since the ring-opened product is obtained under polar (2e) conditions, and the ring-closed product is obtained under radical (1e) conditions. Mechanistic studies demonstrate that the optimal leaving group is redox-active, and are consistent with a Ni(I)/Ni(III) catalytic cycle. The optimized reaction conditions are also used to synthesize a number of arylcyclopropanes, which are valuable pharmaceutical motifs.
A New Benchmark Set for Excitation Energy of Charge Transfer States: Systematic Investigation of Coupled-Cluster Type Methods
Authors: Kozma Balázs , Tajti Attila , Demoulin Baptiste , Izsák Róbert , Nooijen Marcel , Szalay Péter
Published: February 2020

There are numerous publications on benchmarking quantum chemistry methods for excited states. These studies rarely include Charge Transfer (CT) states although many interesting phenomena in e.g. biochemistry and material physics involve transfer of electron between fragments of the system. Therefore, it is timely to test the accuracy of quantum chemical methods for CT states, as well. In this study we ﬁrst suggest a set benchmark systems consisting of dimers having low-energy CT states. On this set, the excitation energy has been calculated with coupled cluster methods including triple excitations (CC3, CCSDT-3, CCSD(T)(a)* ), as well as with methods including full or approximate doubles (CCSD, STEOM-CCSD, CC2, ADC(2), EOM-CCSD(2)). The results show that the popular CC2 and ADC(2) methods are much more inaccurate for CT states than for valence states. On the other hand, CCSD seems to have similar systematic overestimation of the excitation energies for both valence and CT states. Concerning triples methods, the new CCSD(T)(a)* method including non-iterative triple excitations preforms very well for all type of states, delivering essentially CCSDT quality results.
Ab Initio Non-Covalent Crystal Field Theory for Lanthanide Complexes: A Multiconfigurational Non-Orthogonal Group Functions Approach
Authors: Soncini Alessandro , PICCARDO MATTEO
Published: February 2020

We present a non-orthogonal fragment ab initio methodology for the calculation of crystal field energy levels and magnetic properties in lanthanide complexes, implementing a systematic description of non-covalent contributions to metal-ligand bonding. The approach has two steps. In the first step, appropriate ab initio wavefunctions for the various ionic fragments (lanthanide ion and coordinating ligands) are separately optimized, accounting for the electrostatic influence of the surrounding environment, within various approximations. In the second and final step, the scalar relativistic (DKH2) electrostatic Hamiltonian of the whole molecule is represented on the basis of the optimized metal-ligand multiconfigurational non-orthogonal group functions (MC-NOGF), and reduced to an effective (2J+1)-dimensional non-orthogonal Configuration Interaction (CI) problem via L{\"o}wdin-partitioning. Within the proposed formalism, the projected Hamiltonian can be implemented to any desired order of perturbation theory in the fragment-localised excitations out of the degenerate space, and its eigenvalues and eigenfunctions are systematic approximations to the crystal field energies and wavefunctions. We present a preliminary implementation of the proposed MC-NOGF method to first-order degenerate perturbation theory within our own ab initio code CERES, and compare its performance both with the simpler non-covalent orthogonal ab initio approach Fragment Ab Initio Model Potential (FAIMP) approximation, and with the full CAHF/CASCI-SO method, accounting for metal-ligand covalency in a mean-field manner. We find that energies and magnetic properties for 44 complexes obtained via an iteratively optimized version of our MC-NOGF first-order non-covalent method, compare remarkably well to the full CAHF/CASCI-SO method including metal-ligand covalency, and are superior to the best purely electrostatic results achieved via an iteratively optimized version of the FAIMP approach.
MAPA CONCEITUAL POR MEIO DO BRAINSTORMING E CLUSTERING: EXPERIÊNCIA NA DISCIPLINA PRÁTICA DE ENSINO EM FÍSICA
Authors: Melo Charles Bruno da Silva , Kipper Liane Mahlmann
Published: February 2020

Vivemos em um mundo dinâmico, portanto é necessário que se pense e organize novas estratégias de ensino, pois um dos objetivos da Educação Básica é preparar o estudante para a cidadania. A disciplina Prática de Ensino em Física I trouxe abordagens sobre o processo de ensino-aprendizagem que possibilitam essa reflexão. Foi proposto aos estudantes que pensassem em possíveis respostas para as perguntas: Qual é o principal objetivo do ensino de Física e de Química no Ensino Fundamental? E como fazer para que este objetivo seja atingido? Visando tornar o processo mais significativo, foram organizadas equipes de estudantes que utilizaram o brainstorming e o clustering para a construção de um mapa conceitual para responder as questões. O processo de construção iniciou de modo individual, posteriormente, cada membro apresentou palavras, para que fossem agrupadas. Durante essas etapas as discussões se tornaram intensas, dando origem aos conceitos-chaves: construção humana, cotidiano, desejos, conhecimento cientifico, mobilização, Física e Química. Ao final, os acadêmicos utilizaram o CmapTools para construção do mapa conceitual e apresentaram suas conclusões. Foi possível constatar que não existe um único objetivo a se buscar, nem uma única forma para que ele seja alcançado, afinal a Educação é um sistema complexo.
PENGARUH CORPORATE GOVERNANCE, UKURAN PERUSAHAAN DAN LAVERAGE TERHADAP MANAJEMEN LABA
Authors: Budianti Ninik , Ika Sulistyawati Ardiani
Published: February 2020

ABSTRAK

  

Penelitian ini bertujuan untuk menganalisis dan menguji secara empiris pengaruh Corporate Governance (Kepemilikan Manajerial, Kepemilikan Institusional, Komite Audit dan Komisaris Independen), Ukuran Perusahaan dan Laverage Terhadap Manajemen Laba . Discreationary accrual digunakan sebagai proksi manajemen laba. Data yang digunakanadalah data sekunder .Populasipadapenelitianiniadalah 40 Perusahaan Perbankan, berdasarkan metode purposive sampling   sampel yang diperoleh sebanyak 11 perusahaan perbankan yang terdaftar di Bursa Efek Indonesia pada tahun 2012-2015. Untuk memenuhi sasaran penelitian hipotesis diuji dengan analisis regresi berganda. Analisis data untuk menguji persamaan struktural yaitu menggunakan program SPSS 20. Hasil penelitian menunjukkan bahwa kepemilikan manajerial, kepemilikan institusional dan komite audit tidak berpengaruh terhadap manajemen laba. Dewan komisaris independen, ukuran perusahaan dan laverage berpengaruh terhadap manajemen laba.

Kata kunci:     Corporate Governance   Ukuran Perusahaan, Laverage, Manajemen Laba.
PENGARUH PENDIDIKAN KEWIRAUSAHAAN DAN MOTIVASI BERPRESTASI TERHADAP MINAT BERWIRAUSAHA MAHASISWA FAKULTAS EKONOMI UNIVERSITAS SEMARANG
Authors: Tri Adrianto Andhy , Soelistiyono Anitiyo , Nurkomalasari Nyayu
Published: February 2020

ABSTRAK

  

Penelitian ini bertujuan untuk mengetahui Pendidikan Kewirausahaan dan pengaruh Motivasi Berprestasi Kepentingan Mahasiswa Wirausaha Fakultas Ekonomi Universitas Semarang. Lokasi penelitian ini laksanakan di Fakultas Ekonomi Universitas Semarang.

Adapun populasinya adalah siswa kelas sore angkatan 2017/2018 Manajemen Fakultas Ekonomi Semester II, sebanyak 314 mahasiswa Universitas Semarang. Sampel yang diambil adalah 176 responden. Sumber data digunakan dari data primer dan data sekunder. Jenis penelitian ini adalah kuantitatif. Metode pengumpulan data menggunakan kuesioner, observasi dan wawancara. Analisis data dalam penelitian ini menggunakan Analisis Regresi Linear Berganda dan uji asumsi klasik menggunakan aplikasi program SPSS ver 18 for windows. Teknik pengambilan sampel Purposive random sampling

Berdasarkan hasil pengujian goodness of fit dari dua variabel independen yang diuji secara individual pengaruh yang paling dominan terhadap minat berwirausaha di Universitas Semarang adalah pendidikan kewirausahaan (dengan koefisien 0,646). Variabel dominan kedua yang mempengaruhi minat berwirausaha di Universitas Semarang adalah motivasi berprestasi (dengan koefisien 0,251). Pendidikan Kewirausahaan mempengaruhi Minat Wirausaha, nilai hitung yang tinggi adalah Berani Mengambil Risiko 0,942, untuk itu perlu dipertahankan sehingga dengan saran untuk perbaikan, siswa dapat lebih baik dalam meningkatkan prestasi belajar wirausaha mereka. Indikator lain seperti, inovasi dengan rhitung 0,907 perlu ditingkatkan. Motivasi berprestasi tidak mempengaruhi minat berwirausaha, Harapan suatu tugas dilihat oleh responsivitas subjek, dengan hitungan 0,746, siswa harus diberikan soft skill training agar lebih jelas dalam melihat potensi yang ada di dalam dirinya, nilai terhitung tinggi r adalah upaya untuk berhasil 0,885, untuk itu perlu dipertahankan sehingga dengan upaya ini siswa dapat lebih meningkatkan keterampilan lunak mereka. Indikator lain, motif untuk mengatasi hambatan dan keterlibatan ego individu dalam tugas dengan rasio yang dihitung 0,811 dan 0,847, perlu dievaluasi dengan benar.

Kata kunci :                             Pendidikan Kewirausahaan, Motivasi Berprestasi, Minat dalam Kewirausahaan
PERILAKU KONSUMEN DALAM MENGGUNAKAN JASA TRANSPORTASI OJEK ONLINE DI SEMARANG
Authors: Adi Vino Bagus Setyo , Suryawardana Edy
Published: February 2020

ABSTRAK
Penelitian ini bertujuan untuk mengetahui dan mendapatkan informasi tentang implementasi
perilaku konsumen dalam menggunakan jasa transportasi ojek online Go-Jek di Semarang.
Teknik pengambilan subjek penelitian atau informan yang digunakan adalah purposive
sampling dan snowball sampling, dengan kriteria: 1) Informan merupakan pengguna smartphone, 2)
Informan memiliki aplikasi Go-Jek pada smartphone mereka, 3) Informan pernah menggunakan
layanan di aplikasi Go-Jek, 4) Berusia 19 tahun keatas, karena usia tersebut dinilai sudah cukup
mampu memberikan pendapat dan pernyataan yang tidak berubah-ubah. Informan pada penelit ian
ini berjumlah lima orang. Secara lebih spesifik, kelima informan yang dipilih dalam penelit ian ini
adalah informan yang memiliki jumlah frekuensi penggunaan layanan jasa transportasi ojek online
Go-Jek yang berbeda, hal itu dimaksudkan agar informan mempunyai sudut pandang dan keunikan
tersendiri. Dengan teknik pengumpulan data yang digunakan adalah wawancara, serta teknik analisa
data yang digunakan adalah deskriptif kualitatif dengan metode perbandingan tetap atau constant
comparative method. Pada akhirnya, pemeriksaan keabsahan data yang digunakan adalah
triangulasi sumber. Dari kelima informan, diketahui bahwa salah satu informan menjadi triangulasi
sumber adalah Veronica Mutisari, karena sudah menggunakan layanan jasa Go-Jek lebih dari
setahun.
Berdasarkan hasil penelitian, didapatkan bahwa menurut informan, perilaku konsumen
dalam menggunakan jasa transportasi ojek online Go-Jek di Semarang dipengaruhi oleh faktor
internal yang meliputi: 1) Pekerjaan; 2) Gaya hidup; 3) Pengalaman masa lalu; dan 4) Rasa suka,
sedangkan faktor internal yang tidak mempengaruhi terdiri dari: 1) Usia; 2) Pendidikan; 3) Sifat
atau Kepribadian. Selain itu juga, ditemukan bahwa perilaku konsumen dalam menggunakan jasa
transportasi ojek online Go-Jek juga dipengaruhi faktor eksternal yaitu 1) Teman; 2) Promosi; 3)
Harga; dan 4) Ketersediaan layanan, sedangkan faktor eksternal yang tidak mempengaruhi ialah: 1)
Keluarga; 2) Status sosial; 3) Budaya; 4) Asuransi kecelakaan.
Kata kunci: perilaku konsumen, faktor internal, faktor eksternal, jasa transportasi, Go-Jek.
PENGARUH MOTIVASI, LINGKUNGAN KERJA DAN DISIPLIN KERJA TERHADAP KINERJA KARYAWAN PT. PERKEBUNAN NUSANTARA IX SEMARANG (Studi Pada Karyawan Bagian Produksi Karet Kebun Sukamangli di PT. Perkebunan Nusantara IX Semarang)
Authors: Aini Kunti Nurul , Ariefiantoro Teguh
Published: February 2020

ABSTRAK

Penelitian ini bertujuan untuk mengetahui pengaruh antara motivasi, lingkungan kerja dan
disiplin kerja terhadap kinerja karyawan (Studi Pada Karyawan Bagian Produksi Karet Kebun
Sukamangli di PT. Perkebunan Nusantara IX Semarang).
 Populasi dalam penelitian adalah seluruh karyawan bagian produksi karet kebun
sukamangli di PT. Perkebunan Nusantara IX Semarang sejumlah 339 karyawan. Sedangkan sampel
sejumlah 77 karyawan yang diperoleh dengan menggunakan teknik purposive sampling. Lokasi
penelitian dilaksanakan di Kebun Sukamangli PT. Perkebunan Nusantara IX Semarang. Analisis
yang digunakan adalah analisis regresi berganda.
Hasil penelitian ini menunjukkan bahwa motivasi memiliki pengaruh yang signifikan dan
positif terhadap kinerja karyawan di PT. Perkebunan Nusantara IX Semarang. Lingkungan kerja
memiliki pengaruh yang signifikan dan positif terhadap kinerja karyawan di PT. Perkebunan
Nusantara IX Semarang. Disiplin kerja memiliki pengaruh yang signifikan dan positif terhadap
kinerja karyawan di PT. Perkebunan Nusantara IX Semarang.

Kata kunci : Motivasi, Lingkungan Kerja, Disiplin Kerja, Kinerja Karyawan.

  
PENGARUH KARAKTERISTIK PERUSAHAAN TERHADAP PENGUNGKAPAN AKUNTANSI SUMBER DAYA MANUSIA
Authors: Rahayu Andarista Puji , Sulistyawati Ardiani Ika
Published: February 2020

ABSTRACT
 Human resources is an intangible asset and is the most important factor
that determines the success of the company . The role of human resources (HR) in
the development of the business world that is increasingly rapidly considered very
important for any company . Qualified human resources will lead the
organization in both comparative advantage and competitive basis and was
instrumental in running the company's operations and optimally executing
business strategy .This research aims to determine the effect of company size , size
of board of commissioners , the concentration of ownership and status on the
disclosure of accounting lisitng human resources .
 Type of data used in this study is secondary data. Purposive sampling
method used in sample selection. The results of this study prove that
simultaneously (F est) accounting disclosure index of human resources can be
explained by all the variables. While (t test) indicates that the variable board size
significantly influence accounting disclosure of human resources .

Keywords :human resources accounting disclosure, company size, the
concentration of ownership and listing status
ANALISIS PENERIMAAN PENGGUNA SISTEM INFORMASI AKADEMIK, STUDI KASUS STIKES HARAPAN BANGSA
Authors: Negara Iis Setiawan Mangku , Savitri Fania Mutiara
Published: February 2020

ABSTRAK

Sistem informasi dan Teknologi informasi berkembang dengan sangat
pesat dan berdampak signifikan terhadap segala bidang. Pemanfaatan teknologi
informasi tidak hanya pada pemanfaatan sektor bisnis, tetapi juga sektor publik
yang salah satunya adalah lembaga perguruan tinggi. Efisiensi dan efektifitas
proses informasi dengan menggunakan sistem informasi hanya akan terjadi
apabila teknologi tersebut diterima oleh individu dalam organisasi. Tesis ini
merupakan hasil riset yang akan membahas mengetahui faktor faktor apa yang
sajakah yang mempengaruhi penerimaan dosen, mahasiswa dan staf akademik
dalam menggunakan Sistem Informasi Akademik STIKes Harapan Bangsa.
Sejumlah 200 responden ikut berpartisipasi dalam penelitian ini. Adapun model
adopsi teknologi yang digunakan adalah model Technolgy Acceptance Model.
Selain menguji variabel, penelitian ini juga menguji apakah teori TAM dapat
digunakan untuk mengetahui penerimaan pengguna SIAK-SHB di Stikes Harapan
Bangsa. Analisis data dilakukan dengan pendekatan Structural Equation
Modeling. Berdasarkan hasil dari analisis diperoleh kesimpulan bahwa Actual
System Use dipengaruhi oleh Behavioral Intention to Use, Behavioral Intention to
Use dipengaruhi oleh Perceived Usefulness dan Perceived Usefulness dipengaruhi
oleh Perceived Easy of Use.

Kata Kunci :Technolgy Acceptance Model, Structural Equation Modeling,
Penerimaan Pengguna Sistem Informasi Akademik
ANALISIS PENGARUH KUALITAS PRODUK, KUALITAS PELAYANAN DAN PROMOSI TERHADAP KEPUASAN KONSUMEN ELSA HIJAB SEMARANG
Authors: Roselina Mitha Alifia , Niati Asih
Published: February 2020

ABSTRAK
Penelitian ini bertujuan untuk menganalisis pengaruh kualitas produk,
kualitas layanan dan promosi terhadap kepuasan pelanggan di Elsa Hijab
Semarang.
Penelitian ini dilakukan dengan metode kuantitatif. Jumlah sampel dalam
penelitian ini berjumlah 96 responden yang merupakan konsumen Elsa Hijab
Semarang. Teknik yang digunakan dalam penelitian ini menggunakan teknik
Purporsive Sampling. Analisis data yang digunakan adalah analisis deskriptif dan
analisis regresi linier berganda.
Hasil penelitian ini menunjukkan bahwa kualitas produk, kualitas layanan
dan promosi memiliki pengaruh positif dan signifikan terhadap kepuasan
pelanggan.

Kata kunci: Kualitas produk, kualitas layanan, promosi dan kepuasan konsumen.
ANALISIS PENGARUH KOMPETENSI DAN INDEPENDENSI TERHADAP KINERJA AUDITOR DENGAN SELF EFFICACY SEBAGAI VARIABEL MEDIASI (STUDI EMPRIS AUDITOR PADA KANTOR AKUNTAN PUBLIK DI SEMARANG)
Authors: Romadon Ahmad Sahri , Fridatien Ericke
Published: February 2020

  
                                                  Abstrak

Penelitian ini mengenai kinerja auditor akuntan publik di Semarang. Tujuannya adalah menganalisis Self Efficacy dalam memediasi pengaruh Kompetensi dan Independensi terhadap Kinerja Auditor.

Metode analisis data menggunakan regresi berganda dan uji sobel utuk menguji hipotesis. Populasi dalam penelitan ini adalah auditor pada kantor akuntan publik di Semarang. Sampel dalam penelitian ini terpilih melalui esidental sampling, sehingga diperoleh sampel sebanyak   54 Auditor.
Hasil menunjukkan bahwa kompetensi berpengaruh positif signifikan terhadap self efficacy,   independensi berpengaruh positif signifikan terhadap self efficacy.  Kompetensi berpengaruh   positif   signifikan   terhadap   kinerja auditor, independensi berpengaruh   positif   signifikan   terhadap   kinerja auditor, self efficacy berpengaruh   positif   signifikan   terhadap   kinerja auditor. Self efficacymemediasi positif signifikan pengaruh kompetensi terhadap kinerja auditor dan memediasi positif signifikan independensi terhadap kinerja auditor.
  

Kata  kunci:          Kompetensi,  Independensi,  Self efficacy, Kinerja auditor
Antimicrobial effects of different extracts of medicinally used green leafy vegetables collected from local market of Dhaka, Bangladesh
Authors: Hossaini F. , Munshi S.K. , Chakraborty M.
Published: February 2020

The present study was carried out to determine the antimicrobial efficacy of green leafy
vegetable samples which are traditionally used as medicinal herbs. Therefore, three
samples each of Neem (Azadirachta indica, leaves), Ivy Gourd (Coccinia grandis, leaves),
Water Spinach (Ipomoea aquatica, leaves) and Skunkvine (Paederia foetida, leaves) were
collected and subjected to microbiological analysis, and agar well diffusion and
microdilution assays to check antimicrobial activity. The samples contained total viable
bacteria and fungi up to 107
and 105 CFU/g, respectively. Staphylococcus spp., Klebsiella
spp. and Pseudomonas spp. were recovered in all the samples. All the samples showed
potential antibacterial activity against most of the tested bacteria, especially their ethanolic
and methanolic extracts. Although, crude and hot water extracts almost had no effect on
the bacterial growth. The MIC value of the samples was found in a range of 3 mg/mL to
12 mg/mL and the average MIC value was recorded to be 6 mg/mL. Overall, the findings
of the present study justified the therapeutic potential of the tested green leafy vegetable
samples.