85 research outputs found
FAKTOR-FAKTOR YANG MEMPENGARUHI PENINGKATAN MUTU PENDIDIKAN DI KAMPUS STIA ALAZKA AMBON
Full text linkUndang-undang nomor 20 tahun 2003 tentang sistem pendidikan nasional bahwa pendidikan nasional berfungsi untuk mengembangkan kemampuan dan membentuk watak serta peradaban bangsa yang bermartabat dalam rangka mencerdaskan kehidupan bangsa. Namun pula, dalam lembaga pendidikan ditemukan berbagai kendala yang mengganggu jalannya proses untuk mencapai mutu pendidikan sebagaimana yang di jumpai pada kampus STIA Abdul Aziz Kataloka Ambon yang mana belum optimalnya upaya peningkatan mutu pendidikan di kampus. Berbagai hal yang menjadi penghambat belum optimalnya peningkatan mutu pendidikan antara lain: (1) sistem manajemen yang tidak berjalan dengan baik, (2) ketidak sesuaian kurikulum yang ada dengan tuntutan kebutuhan kekinian, (3) kwalitas tenaga pendidik yang belum memadai, (4) kurangnya kedisiplinan mahasiswa, (5) serta kurang adanya kerjasama dan kekompakan antara dosen dan pegawainya. Dalam kondisi yang demikian ini dibutuhkan peran aktif pimpinan dalam mereformasi serta menata ulang sistem yang ada sehingga diharapkan terjadi perubahan kedepannya.
Kata Kunci: Pendidikan, Mutu Pendidikan, Faktor yang Mempengaruhi, STIA Alazk
Improved image quality using monolithic scintillator detectors with dual-sided readout in a whole-body TOF-PET ring: A simulation study
No full textWe have recently built and characterized the performance of a monolithic scintillator detector based on a 32 mm × 32 mm × 22 mm LYSO:Ce crystal read out by digital silicon photomultiplier (dSiPM) arrays coupled to the crystal front and back surfaces in a dual-sided readout (DSR) configuration. The detector spatial resolution appeared to be markedly better than that of a detector consisting of the same crystal with conventional back-sided readout (BSR). Here, we aim to evaluate the influence of this difference in the detector spatial response on the quality of reconstructed images, so as to quantify the potential benefit of the DSR approach for high-resolution, whole-body time-of-flight (TOF) positron emission tomography (PET) applications. We perform Monte Carlo simulations of clinical PET systems based on BSR and DSR detectors, using the results of our detector characterization experiments to model the detector spatial responses. We subsequently quantify the improvement in image quality obtained with DSR compared to BSR, using clinically relevant metrics such as the contrast recovery coefficient (CRC) and the area under the localized receiver operating characteristic curve (ALROC). Finally, we compare the results with simulated rings of pixelated detectors with DOI capability. Our results show that the DSR detector produces significantly higher CRC and increased ALROC values than the BSR detector. The comparison with pixelated systems indicates that one would need to choose a crystal size of 3.2 mm with three DOI layers to match the performance of the BSR detector, while a pixel size of 1.3 mm with three DOI layers would be required to get on par with the DSR detector.RST/Applied Radiation & Isotope
Measurement of the residence time distribution of FCC catalyst in rotary kilns
No full textContinuous rotary kilns are among the most widely used solid handling equipment for industrial applications such as drying, incineration, mixing, pre-heating, humidification, calcining, and gas-solid reactions. Longer residence times prove beneficial in ensuring that all particles have been treated sufficiently, but this can lead to large material and energy costs. As a result, efficient calcination will require shorter residence time and lower axial dispersion. The purpose of this research is to contribute towards a better understanding of these mass transfer mechanisms in rotary kilns, using industrially relevant equipment and operating conditions directed towards large-scale catalyst manufacturing. In this work, the residence time distribution and axial dispersion coefficient for a free flowing fluid cracking catalyst (FCC) powder is measured in pilot-scale kilns using a tracer study developed by Danckwerts (1952). The tracer study was used to determine residence time distributions for different sets of operating parameters, which were successfully matched to the Taylor fit of the axial dispersion model and the Sullivan prediction for mean residence time. It was found that the mean residence time and axial dispersion coefficient varied inversely with rotary speed of the kiln. The bed depths corresponding to respective flow regimes in such a calcination system were not previously reported. The predictive models showed accuracy for the system considered, even at fill levels <1% which was not the case in previously reported studies with cohesive powders.M.S.Includes bibliographical referencesby Sahil Suleman Navodi
A Scalable Architecture for Harvest-Based Digital Libraries - The ODU/Southampton Experiments
No full textThis paper discusses the requirements of current and emerging applications based on the Open Archives Initiative (OAI) and emphasizes the need for a common infrastructure to support them. Inspired by HTTP proxy, cache, gateway and web service concepts, a design for a scalable and reliable infrastructure that aims at satisfying these requirements is presented. Moreover it is shown how various applications can exploit the services included in the proposed infrastructure. The paper concludes by discussing the current status of several prototype implementations
Employability Skills of Higher Education Graduates: Little Consensus on a Much-discussed Subject
Full text linkAbstractThe expansion of higher education (HE) has given rise to research on skills that smooth transition and benefit the careers of graduates. We examine literature that attempts to inform HE institutions and policy makers about the skills required in the labor market. A variety of methods have been implemented to collect data on employability skills. It has been acquired directly using hiring criteria but it has also been gleaned indirectly on the basis of employers’ satisfaction with graduates’ skills. The evidence shows little consensus on which skills actually foster employability. Wide agreement exists on the need for relational skills, namely interpersonal, communication and teamwork abilities, which are reported in almost all papers. Moreover, the literature suggests that some employers find graduates are poorly prepared for teamwork but they recognize the good level of IT skills. We are concerned about the lack of agreement on the necessary skills as well as the perception that graduates are poorly prepared. Conceptual issues and methodological solutions are likely to have generated results that contain some degree of ambiguity. Researchers and policy makers therefore remain uncertain about graduate skills that match workplace requirements and foster employability
Social and contextual taxonomy of cybercrime: Socioeconomic theory of Nigerian cybercriminals
No full textAbstractThis article aims to establish the particularities of cybercrime in Nigeria and whether these suggest problems with prevailing taxonomies of cybercrime. Nigeria is representative of the Sub-Saharan region, and an exemplary cultural context to illustrate the importance of incorporating social and contextual factors into cybercrime classifications. This paper anchors upon a basic principle of categorisation alongside motivational theories, to offer a tripartite conceptual framework for grouping cybercrime nexus. It argues that cybercrimes are motivated by three possible factors: socioeconomic, psychosocial and geopolitical. Whilst this contribution challenges the statistics relied on to inform the prevalence of cybercrime perpetrators across nations, it provides new ways of making sense of the voluminous variances of cybercrime. Concomitantly, it enables a clearer conceptualisation of cybercrime in Nigeria and elsewhere, because jurisdictional cultures and nuances apply online as they do offline
Experimental measurement and thermodynamic modeling of the solubility of carbon dioxide in aqueous blends of monoethanolamine and diethanolamine
No full textIn this study, the solubilities of carbon dioxide in aqueous mixtures of monoethanolamine (MEA) and diethanolamine (DEA) were determined using a high pressure vapor-liquid equilibrium apparatus. The carbon dioxide loadings (mole of CO2/mole of amine mixture) were reported for a wide range of temperature (303.15, 323.15, 343.15 K) and pressure (100 – 4100 kPa). The carbon dioxide solubility shows an increase with increase in pressure and amine concentration and a decrease with increase in temperature in the aqueous blends of MEA and DEA. At carbon dioxide loadings above 1.0, the carbon dioxide solubility becomes a weak function of pressure and follows the general trend of carbon dioxide solubility in aqueous alkanolamines. The new experimental data points determined in this study were correlated by using a recently developed, enhanced Kent-Eisenberg model. An average absolute relative error of 9.4 % was observed between the model results and experimental data, indicating good correlative capability of the thermodynamic model
An empirical comparison between Grade of Membership and principal component analysis
Full text linkAbstract. It is the purpose of this paper to contribute to the discussion ini-tiated by Wachter about the parallelism between principal component (PC) and a typological grade of membership (GoM) analysis. The author tested empirically the close relationship between both analysis in a low dimensional framework comprising up to nine dichotomous variables and two typologies. Our contribution to the subject is also empirical. It relies on a dataset from a survey which was especially designed to study the reward of skills in the banking sector in Portugal. The statistical data comprise thirty polythomous variables and were decomposed in four typologies using an optimality crite-rion. The empirical evidence shows a high correlation between the first PC scores and individual GoM scores. No correlation with the remaining PCs was found, however. In addtion to that, the first PC also proved effective to rank individuals by skill following the particularity of data distribution meanwhile unveiled in GoM analysis. 1
Book Review: Darwin’s Hunch: Science, Race and the Search for Human Origins
No full textBook Title: Darwin’s Hunch: Science, Race and the Search for Human OriginsBook Author: Christa KuljianJohannesburg: Jacana Media, 2016. ISBN: 978-1-4314-2425-2
Análise dos aspetos comportamentais através da ferramenta DISC
No full textEste trabalho procura enfocar a importância da metodologia de avaliação do
perfil comportamental, denominada DISC, introduzida por Marston (1928), no seu livro
Emotions of Normal People.
Com enfoque, sobretudo dentro das organizações, para o desenvolvimento de
atitudes de alto desempenho, visa levar pessoas e, por via de conseqüência, as
organizações na consecução do seu objetivo maior: o sucesso.
Considerando poucos estudos no Brasil relativos a esse tema, o autor se propõe, a
abrir o tema, iniciando de maneira mais ampla, uma discussão sobre as aplicações dessa
metodologia nos processos de gestão de pessoas. Poucos duvidam hoje da importância,
na produtividade e resultados, de uma administração correta dos talentos e da interação
entre pessoas.
O autor analisa a sua experiência de duas décadas em laboratório de
comportamento humano e em atividades de educação corporativa e consultoria. Para tal,
procura ainda utilizar adicionalmente uma pesquisa de dados primários, com o objetivo
de identificar o grau de satisfação e eficácia da metodologia, através dos sistemas e
ferramentas, com informações colhidas junto a um público qualificado, usuário da
metodologia em questão.
Com isso, pretende contribuir para o desenvolvimento humano e organizacional,
mostrando que a ferramenta DISC, pode encurtar os caminhos para a melhor
compreensão, gerenciamento e desenvolvimento na Empresa, na Escola, Família e
Sociedade, e assim propiciar o desenvolvimento de novas formas de gestão, eficazes e
humanizadas, que preparem mais objetivamente os seres humanos para os desafios que o
ambiente contemporâneo apresenta.This work seeks to show the importance of the assessing methodology of the
behavioral profile, known as DISC, introduced by Marston (1928), in his book Emotions
of Normal People.
Focusing, particularly within organizations, on the development of highperformance
attitudes, it aims at leading people and, as a result, the organizations to
achieve their highest goal: success.
Considering there have been few studies in Brazil related to this subject, the
author is offering to initiate the discussion, in an ampler manner, on the applications of
this methodology in the processes of people management, proper talent management as
well as social interaction between individuals; contributing to the development of
themes related to the productivity and generating of results.
The author analyses his two-decade experience in the laboratory of human
behavior and also in corporate education and consulting activities. For this, he is
planning to use additionally the preliminary data of a previous research, in order to
identify the degree of satisfaction and efficiency of the methodology, through systems
and tools, together with information collected from a qualified public, user of the
methodology in question.
By doing this, he intends to contribute to the human and organizational
developments, showing that the DISC tool can shorten the path to a better
understanding, management and development at Work, at School, within the Family and
the Society, and therefore facilitate the development of new forms of management,
efficient and humanized, that would prepare more objectively the human-beings for the
challenges that the contemporary environment presents
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