bluuebunny/crossref_metadata_2025 huggingface dataset:
A Novel Technique to Determine Concentration-Dependent Solvent Dispersion in Vapex
Authors: Abukhalifeh Hadil , Lohi Ali , Upreti Simant Ranjan
Published: July 2021

Vapex (vapor extraction of heavy oil and bitumen) is a promising recovery technology because it consumes low energy, and is very environmentally-friendly. The dispersion of solvents into heavy oil and bitumen is a crucial transport property governing Vapex. The accurate determination of solvent dispersion in Vapex is essential to effectively predict the amount and time scale of oil recovery as well to optimize the field operations. In this work, a novel technique is developed to experimentally determine the concentration-dependent dispersion coefficient of a solvent in Vapex process. The principles of variational calculus are utilized in conjunction with a mass transfer model of the experimental Vapex process. A computational algorithm is developed to optimally compute solvent dispersion as a function of its concentration in heavy oil. The developed technique is applied to Vapex utilizing propane as a solvent. The results show that dispersion of propane is a unimodal function of its concentration in bitumen.
Trends in the Usage of ISI Bibliometric Data: Uses, Abuses, and Implications
Authors: Cameron Brian
Published: July 2021

Librarians rely on the Institute for Scientific Information’s journal impact factor as a tool
for selecting periodicals, primarily in scientific disciplines. A current trend is to use this data as a
means for evaluating the performance of departments, institutions, and even researchers in
academic institutions—a process that is now being tied to tenure and promotion—despite the fact
that such usage can be misleading and prejudicial. This paper will highlight the history of the
development of impact factors, describe the limitations in their use, and provide a critique of the
usage of impact factors in academic settings.
The potential impact of increased treatment rates for alcohol dependence in the United Kingdom in 2004
Authors: Shield Kevin D. , Rehm Jürgen , Rehm Maximilien X. , Gmel Gerrit , Drummond Colin
Published: July 2021

Alcohol consumption has been linked to a considerable burden of disease in the United Kingdom (UK), with most of this burden due to heavy drinking and Alcohol Dependence (AD). However, AD is undertreated in the UK, with only 8% of those individuals with AD being treated in England and only 6% of those individuals with AD being treated in Scotland. Thus, the objective of this paper is to quantify the deaths that would have been avoided in the UK in 2004 if the treatment rate for AD had been increased.

Methods
Data on the prevalence of AD, alcohol consumption, and mortality were obtained from the Adult Psychiatric Morbidity Survey, the Global Information System on Alcohol and Health, and the 2004 Global Burden of Disease study respectively. Data on the effectiveness of pharmacological treatment and Motivational Interviewing/Cognitive Behavioural Therapy were obtained from Cochrane reviews and meta-analyses. Simulations were used to model the number of deaths under different treatment scenarios. Sensitivity analyses were performed to model the effects of Brief Interventions and to examine the effect of using AD prevalence data obtained from the National Institute for Health and Clinical Excellence.

Results
In the UK, 320 female and 1,385 male deaths would have been avoided if treatment coverage of pharmacological treatment had been increased to 20%. This decrease in the number of deaths represents 7.9% of all alcohol-attributable deaths (7.0% of all alcohol-attributable deaths for women and 8.1% of all alcohol-attributable deaths for men). If we used lower AD prevalence rates obtained from the National Institute for Health and Clinical Excellence, then treatment coverage of pharmacological treatment in hospitals for 20% of the population with AD would have resulted in the avoidance of 529 deaths in 2004 (99 deaths avoided for women and 430 deaths avoided for men).

Conclusions
Increasing AD treatment in the UK would have led to a large number of deaths being avoided in 2004. Increased AD treatment rates not only impact mortality but also impact upon the large burden of disability and morbidity attributable to AD, as well as the associated social and economic burdens.
Green Roofs as Urban Ecosystems: Ecological Structures, Functions, and Services
Authors: Oberndorfer Erica , Lundholm Jeremy , Bass Brad , Coffman Reid R , Doshi Hitesh , Dunnett Nigel , Gaffin Stuart , Köhler Manfred , Liu Karen KY , Rowe Bradley
Published: July 2021

Green roofs (roofs with a vegetated surface and substrate) provide ecosystem services in urban areas, including improved storm-water management, better regulation of building temperatures, reduced urban heat-island effects, and increased urban wildlife habitat. This article reviews the evidence for these benefits and examines the biotic and abiotic components that contribute to overall ecosystem services. We emphasize the potential for improving green-roof function by understanding the interactions between its ecosystem elements, especially the relationships among growing media, soil biota, and vegetation, and the interactions between community structure and ecosystem functioning. Further research into green-roof technology should assess the efficacy of green roofs compared to other technologies with similar ends, and ultimately focus on estimates of aggregate benefits at landscape scales and on more holistic cost-benefit analyses.
Dimensionality of Social Networks Using Motifs and Eigenvalues
Authors: Bonato Anthony , Gleich David F. , Kim Myunghwan , Mitsche Dieter , Prałat Paweł , Tian Yanhua , Young Stephen J.
Published: July 2021

We consider the dimensionality of social networks, and develop experiments aimed at predicting that dimension. We find that a social network model with nodes and links sampled from an m-dimensional metric space with power-law distributed influence regions best fits samples from real-world networks when m scales logarithmically with the number of nodes of the network. This supports a logarithmic dimension hypothesis, and we provide evidence with two different social networks, Facebook and LinkedIn. Further, we employ two different methods for confirming the hypothesis: the first uses the distribution of motif counts, and the second exploits the eigenvalue distribution.
Effective Dysphonia Detection Using Feature Dimension Reduction and Kernel Density Estimation for Patients with Parkinson’s Disease
Authors: Krishnan Sridhar , Yang Shanshan , Zheng Fang , Luo Xin , Cai Suxian , Wu Yunfeng , Liu Kaizhi , Wu Meihong , Chen Jian
Published: July 2021

Detection of dysphonia is useful for monitoring the progression of phonatory impairment for patients with Parkinson’s disease (PD), and also helps assess the disease severity. This paper describes the statistical pattern analysis methods to study different vocal measurements of sustained phonations. The feature dimension reduction procedure was implemented by using the sequential forward selection (SFS) and kernel principal component analysis (KPCA) methods. Four selected vocal measures were projected by the KPCA onto the bivariate feature space, in which the class-conditional feature densities can be approximated with the nonparametric kernel density estimation technique. In the vocal pattern classification experiments, Fisher’s linear discriminant analysis (FLDA) was applied to perform the linear classification of voice records for healthy control subjects and PD patients, and the maximum a posteriori (MAP) decision rule and support vector machine (SVM) with radial basis function kernels were employed for the nonlinear classification tasks. Based on the KPCA-mapped feature densities, the MAP classifier successfully distinguished 91.8% voice records, with a sensitivity rate of 0.986, a specificity rate of 0.708, and an area value of 0.94 under the receiver operating characteristic (ROC) curve. The diagnostic performance provided by the MAP classifier was superior to those of the FLDA and SVM classifiers. In addition, the classification results indicated that gender is insensitive to dysphonia detection, and the sustained phonations of PD patients with minimal functional disability are more difficult to be correctly identified.
Gender-Heterogeneous Working Groups Produce Higher Quality Science
Authors: Campbell Lesley , Mehtani Siya , Dozier Mary E. , Rinehart Janice
Published: July 2021

Here we present the first empirical evidence to support the hypothesis that a gender-heterogeneous problem-solving team generally produced journal articles perceived to be higher quality by peers than a team comprised of highly-performing individuals of the same gender. Although women were historically underrepresented as principal investigators of working groups, their frequency as PIs at the National Center for Ecological Analysis and Synthesis is now comparable to the national frequencies in biology and they are now equally qualified, in terms of their impact on the accumulation of ecological knowledge (as measured by the h-index). While women continue to be underrepresented as working group participants, peer-reviewed publications with gender-heterogeneous authorship teams received 34% more citations than publications produced by gender-uniform authorship teams. This suggests that peers citing these publications perceive publications that also happen to have gender-heterogeneous authorship teams as higher quality than publications with gender uniform authorship teams. Promoting diversity not only promotes representation and fairness but may lead to higher quality science.
Review of phosphocholine substituents on bacterial pathogen glycans: Synthesis, structures and interactions with host proteins
Authors: Wakarchuk Warren W. , Young N. Martin , J. Foote Simon
Published: July 2021

Among the non-carbohydrate components of glycans, the addition of phosphocholine (ChoP) to the glycans of pathogens occurs more rarely than acetylation or methylation, but it has far more potent biological consequences. These arise from ChoP's multiple interactions with host proteins, which are important at all stages of the infection process. These stages include initial adherence to cells, encountering the host's innate immune system and then the adaptive immune system. Thus, in the initial stages of an infection, ChoP groups are an asset to the pathogen, but they can turn into a disadvantage subsequently. In this review, we have focussed on structural aspects of these phenomena. We describe the biosynthesis of the ChoP modification, the structures of the pathogen glycans known to carry ChoP groups and the host proteins that recognize ChoP.
Remote Sensing of Leaf Area Index from LiDAR Height Percentile Metrics and Comparison with MODIS Product in a Selectively Logged Tropical Forest Area in Eastern Amazonia
Authors: Qu Yonghua , Abdelrahman Ahmed , Silva Carlos Alberto , Klauberg Carine , Pinagé Ekena Rangel
Published: July 2021

Leaf area index (LAI) is an important parameter to describe the capacity of forests to intercept light and thus affects the microclimate and photosynthetic capacity of canopies. In general, tropical forests have a higher leaf area index and it is a challenge to estimate LAI in a forest with a very dense canopy. In this study, it is assumed that the traditional Light Detection and Ranging (LiDAR)-derived fractional vegetation cover (fCover) has weak relationship with leaf area index in a dense forest. We propose a partial least squares (PLS) regression model using the height percentile metrics derived from airborne LiDAR data to estimate the LAI of a dense forest. Ground inventory and airborne LiDAR data collected in a selectively logged tropical forest area in Eastern Amazonia are used to map LAI from the plot level to the landscape scale. The results indicate that the fCover, derived from the first return or the last return, has no significant correlations with the ground-based LAI. The PLS model evaluated by the leave-one-out validation shows that the estimated LAI is significantly correlated with the ground-based LAI with an R2 of 0.58 and a root mean square error (RMSE) of 1.13. A data comparison indicates that the Moderate Resolution Imaging Spectrometer (MODIS) LAI underestimates the landscape-level LAI by about 22%. The MODIS quality control data show that in the selected tile, the cloud state is not the primary factor affecting the MODIS LAI performance; rather, the LAI from the main radiative transfer (RT) algorithm contributes much to the underestimation of the LAI in the tropical forest. In addition, the results show that the LiDAR-based LAI has a better response to the logging activities than the MODIS-based LAI, and that the leaf area reduction caused by logging is about 13%. In contrast, the MODIS-based LAI exhibits no apparent spatial correlation with the LiDAR-based LAI. It is suggested that the main algorithm of MODIS should be improved with regard to tropical forests. The significance of this study is the proposal of a framework to produce ground-based LAI using forest inventory data and determine the plot-level LAI at the airborne and satellite scale using LiDAR data.
Trees in Canadian Cities: Indispensable Life Form for Urban Sustainability
Authors: Duinker Peter N. , Ordóñez Camilo , Steenberg James W. N. , Miller Kyle H. , Toni Sydney A. , Nitoslawski Sophie A.
Published: July 2021

We argue that a healthy urban forest contributes immensely to the sustainability of cities. The argument is based on a comprehensive array of values elicited from Canadians in several cities. To begin, we define the urban forest as inclusive of all the trees in the city and thus representing the predominant contributor to a city’s green infrastructure. Then we enumerate and explain the broad diversity of ways in which urban people value trees in the city. We, thus, show the myriad pathways by which trees contribute positively to any city’s social, economic, and ecological sustainability. Following a short summary of the ways in which trees may detract from people’s quality of life, we present promising management directions for urban-forest improvement, as we understand the situation in Canada. We conclude that all cities can enhance their sustainability by improving the urban forest.
Questioning the efficacy of ‘gold’ : open access to published articles
Authors: Fredericks Suzanne
Published: July 2021

Aim
To question the efficacy of ‘gold’ open access to published articles.

Background
Open access is unrestricted access to academic, theoretical and research literature that is scholarly and peer-reviewed. Two models of open access exist: ‘gold’ and ‘green’. Gold open access provides everyone with access to articles during all stages of publication, with processing charges paid by the author(s). Green open access involves placing an already published article into a repository to provide unrestricted access, with processing charges incurred by the publisher.

Data sources
This is a discussion paper.

Review methods
An exploration of the relative benefits and drawbacks of the ‘gold’ and ‘green’ open access systems.

Discussion
Green open access is a more economic and efficient means of granting open access to scholarly literature but a large number of researchers select gold open access journals as their first choices for manuscript submissions. This paper questions the efficacy of gold open access models and presents an examination of green open access models to encourage nurse researchers to consider this approach.

Conclusion
In the current academic environment, with increased pressures to publish and low funding success rates, it is difficult to understand why gold open access still exists. Green open access enhances the visibility of an academic’s work, as increased downloads of articles tend to lead to increased citations.

Implications for research/practice
Green open access is the cheaper option, as well as the most beneficial choice, for universities that want to provide unrestricted access to all literature at minimal risk.

Keywords
Open access, self-archiving, publishing, repository, scholarly literature, dissemination
Improving paper wet strength via increased lignin content and hot-pressing temperature
Authors: JOELSSON TOVE , PETTERSSON GUNILLA , NORGREN SVEN , SVEDBERG ANNA , HOGLUND HANS , ENGSTRAND PER
Published: July 2021

It is known that the strength properties of wood-based paper materials can be enhanced via hot-pressing techniques. Today, there is a desire not only for a change from fossil-based packaging materials to new sustainable bio-based materials, but also for more effective and eco-friendly solutions for improving the dry and wet strength of paper and board. Against this background, hot pressing of paper made from high yield pulp (HYP), rich in lignin, becomes highly interesting. This study investigated the influence of pressing temperature and native lignin content on the properties of paper produced by means of hot pressing.
Kraft pulps of varied lignin content (kappa numbers: 25, 50, 80) were produced at pilot scale from the same batch by varying the cooking time. We then studied the effect of lignin content by evaluating the physical properties of Rapid Köthen sheets after hot pressing in the temperature range of 20°C–200°C with a constant nip pressure of 7 MPa. The pilot-scale cooked pulps were compared with reference samples of mill-produced northern bleached soft-wood kraft (NBSK) pulp and mill-produced chemithermomechanical pulp (CTMP).
Generally, the results demonstrated that lignin content had a significant effect on both dry and wet tensile index. All of the pilot cooked pulps with increased lignin content had a higher tensile index than the reference NBSK pulp. To obtain high tensile index, both dry and wet, the pressing temperature should be set high, preferably at least 200°C; that is, well above the glass transition temperature (Tg) for lignin. Moreover, the lignin content should preferably also be high. All kraft pulps investigated in this study showed a linear relationship between wet strength and lignin content.
Crossflow filtration of green liquor for increased pulp production, improved green liquor quality, and energy savings
Authors: BANDEKAR ROHAN , OLDMARK ANNA , LINDSTROM MIKAEL , KALLEN LENNART , LIEDBERG JAKOB , FOAN JON , WEARING JIM
Published: July 2021

A new green liquor filtration system has been installed and commissioned at the Ence pulp mill in Pontevedra, Spain. The filtration system is based on microfiltration and was developed in collaboration with the KTH Royal Institute of Technology in Stockholm, Sweden. The patented method for efficient purification of green liquor decreases the non-process element (NPE) content by providing more efficient solids/liquid separation, reducing energy and chemical consumption in pulp mills and increasing production capacity by eliminating certain capacity bottlenecks. The process has been continuously tested at the Aspa Bruk Mill outside Askersund, Sweden, since 2013. The technology has proven to create nearly particulate-free green liquor during the purification process. The technology can also be used to polish white liquor to provide higher pulp quality. To provide for a simple and cost-effective installation, the system was designed as a skid-mounted unit that is pre-piped, instrumented, and tested before shipment. The system is modular and allows for easy expansion of capacity. This paper discusses the process design, process integration, and startup of the new system, along with experiences from the first months of operation.
Pigmented aqueous barrier coatings
Authors: LYONS ANTHONY V. , REED GREGG
Published: July 2021

The desire for more sustainable packaging has led to the development of new packaging materials that are fiber based. Aqueous coatings are a pathway to improve the recyclability of these materials. Pigments used in these coatings can improve the performance of the coating and reduce cost while further improving the recyclability. Mineral pigments are also considered to be compost neutral.
In this paper, we provide the reader a better fundamental understanding of the mechanisms by which pigments work in barrier coatings. A pigment’s mineralogy and physical characteristics are important to how it will perform, and there have been recent pigment developments that improve coating performance. This paper shows that some pigments are better than others in particular barrier applications. Also, pigmented base or pre-coats can be used to prepare the surface for more highly functional coatings that go on top, improving the barrier function of packaging material and reducing overall cost. Finally, the converting operation is of major importance in driving formulation choices for barrier applications.
Modeling of the energy of a smelt-water explosion in the recovery boiler dissolving tank
Authors: JIN ERIC , MACKENZIE MALCOLM , OSBORNE STEVE , TRAN HONGHI
Published: July 2021

The explosion energy generated as molten smelt droplets interact with water was evaluated as a function of smelt distribution, water temperature, and smelt temperature using a thermodynamic model. The results show that increasing smelt-to-water volume ratio and water temperature significantly increases the explosion energy, converting a larger proportion of the thermal energy of smelt into mechanical work. To reduce the chance of violent smelt-water explosions, it is important to: i) optimize the shatter jet design and operation to uniformly distribute the smelt over a large area in the dissolving tank; ii) avoid high green liquor temperature and ensure adequate liquor mixing; and iii) avoid upsets that may cause heavy smelt runoff or jellyroll smelt.
Relating bending stiffness measurements across various free span lengths
Authors: CASH DOUGLAS , FRANK BENJAMIN
Published: July 2021

Bending stiffness should be an intrinsic property of a material, so it is puzzling that the TAPPI Standard Test Method T 836 “Bending stiffness, four point method” specifies span lengths when testing different types of corrugated fiberboard. These specified spans often limit the samples that can be measured with this method. To better understand the relationship between bending stiffness and span length, we performed measurements on a range of materials at different spans. The results provide a practical tool enabling comparison of bending stiff-ness measurements made at various span lengths. Additionally, this note discusses several areas that could serve as the foundation for more fundamental work exploring the bending behavior of corrugated board.
An evaluation of household tissue softness
Authors: PERNG YUAN-SHING , TENG TSER-YING , CHANG CHING-HO
Published: July 2021

This study extends our 2019 paper, a study of the softness of household tissues using a tissue soft-ness analyzer (TSA) and hand-felt panels. It revisits the softness theory of Holger Hollmark by applying a reciprocal matrix approach to measure sheet bulk softness and surface softness, and then make comparisons with the results obtained using a TSA instrument.
We ascertained that there was a high correlation of R=0.904 between panel-corrected hand-felt (CHF) softness and TSA softness (TSA-HF); and a low correlation of R=-0.678 between panel-corrected hand-felt surface softness (CHSS) and TSA smoothness (TS-750). Three hunches about TSA measurements were confirmed: 1) Hollmark’s theory was confirmed by a high correlation coefficient (R=0.895) between CHF and CHSS softness, indicating that the two parameters are mutually dependent; 2) TS-750 differs from CHSS and has partial influence on TSA-HF results with a correlation of R = -0.510; and 3) although TS-750 has only limited influences on TSA-HF, further opportunities for their application can be provided using pertinent regression equations.
PENGUKURAN KINERJA KARYAWAN DAN SUPPLIER PADA PT. XYZ DENGAN METODE PERFORMANCE PRISM
Authors: Legaretsa Aurel Brillian , Purnamawaty Erlina
Published: July 2021

XYZ melakukan sistem pengukuran kinerja hanya dengan menggunakan sistem pengukuran kinerja tradisional yaitu menekankan pada aspek keuangan sebagai tolak ukur pengukuran kinerja, karena lebih mudah diterapkan. Namun karena hal tersebut stakeholders yang berkaitan dengan unit usahanya menjadi tidak terkontrol dan menyebabkan beberapa permasalahan. Permasalahan pertama teletak pada supplier dimana terlalu banyaknya supplier yang dipilih mengakibatkan pembengkakan biaya dan juga terdapat beberapa supplier yang terkadang telat mengirimkan bahan. Kedua terdapat beberapa masukan kepada pihak manajemen melalui media sosial dimana pelayanan karyawan yang kurang ramah dan terkadang sangat lambat. Sebagai bahan evaluasi maka dibuatlah penelitian yang bertujuan untuk mengetahui kinerja dari supplier dan karyawan PT. XYZ kemudian memberikan rekomendasi perbaikan kinerja berdasarkan analisa yang dilakukan oleh penulis. Penelitian ini menggunakan metode Performance prism karena metode Performance prism tidak hanya didasari oleh strategi tetapi juga memperhatikan kepuasan dan kontribusi stakeholder, proses dan kapabilitas 4 perusahaan. Memahami atribut apa yang menyebabkan stakeholder merasa puas dengan kinerja perusahaan. Hasil penelitian ini adalah pembobotan kriteria yaitu karyawan dan supplier didapatkan bobot untuk karyawan sebesar 0,751 dan supplier sebesar 0,249 yang dimana memiliki arti permasalahan terkait supplier baiknya diselesaikan terlebih dahulu karena memiliki tingkat performansi yang lebih rendah dari karyawan. Untuk bobot terendah adalah KPI 11 dengan nilai 0,076, KPI 10 dengan nilai 0,091 dan KPI 14 dengan nilai 0,106. Untuk terendah adalah KPI 23 dengan nilai 0,16, KPI 28 dengan nilai 0,167 dan KPI 22 dengan nilai 0,27.

Kata Kunci: Penilaian Kinerja, Performance prism, Supplier
PENGUKURAN EFEKTIVITAS MESIN LATEXING PADA PRODUKSI KARPET PERMADANI DENGAN MENGGUNAKAN METODE OVERALL EQUIPMENT EFFECTIVENESS (OEE) DAN OVERALL RESOURCE EFFECTIVENESS (ORE) DI PT. XYZ
Authors: Puspita Livia Eggi , Widjajati Endang Pudji
Published: July 2021

PT. XYZ merupakan perusahaan yang bergerak di bidang industri manufaktur yaitu produksi karpet. Dari banyaknya permintaan konsumen mengharuskan perusahaan untuk bergerak cepat dalam melayani konsumen dengan memaksimalkan penggunaan peralatan atau mesin produksi serta sumber dayanya secara efektif agar semua berjalan dengan lancar. Namun pada kenyataannya masih banyak ditemukan kerusakan mesin yang mengakibatkan downtime, kerusakan dari beberapa mesin paling banyak terjadi pada mesin latexing. Hal tersebut dapat menyebabkan penurunan produktivitas pada perusahaan. Maka perlu dilakukan pengukuran efektivitas mesin latexing dengan harapan dapat mengetahui nilai efektivitas mesin dan dapat diberikan usulan perbaikan untuk meningkatkan efektivitas mesin tersebut. Pada penelitian ini metode yang digunakan untuk menyelesaikan permasalahan yang ada yaitu Overall Equipment Effectiveness (OEE) dan Overall Resource Effectiveness (ORE). Dari hasil perhitungan yang telah dilakukan didapatkan hasil rata-rata pada metode OEE sebesar 70,34% dan metode ORE sebesar 61,37%, dimana nilai tersebut berada dibawah standar untuk nilai OEE yaitu 85%. Rendahnya nilai efektivitas mesin tersebut dikarenakan oleh beberapa faktor antara lain adalah dari manusia yaitu operator yang kurang teliti dan kurangnya pemahaman operator dalam perbaikan mesin. Faktor mesin yaitu jet pump buntu, rantai mesin tidak berjalan, dan roller karpet macet. Faktor material yaitu permukaan soft carpet tidak rata dan kekentalan latex yang tidak sesuai. Faktor metode yaitu kurangnya pengawasan secara ketat terhadap jalannya produksi dan pembersihan latex yang mengering kurang teliti. Faktor lingkungan yaitu kebersihan di area mesin yang kurang terjaga.

Kata Kunci: Efektivitas, Overall Equipment Effectiveness, Overall Resource Effectiveness
ANALISIS TINGKAT KUALITAS DAN PENGUSULAN PENINGKATAN PELAYANAN DENGAN MENGGUNAKAN METODE SERVICE QUALITY DAN TRIZ DI PT. XYZ
Authors: Ramadhan Doddi Yusuf , Iriani Iriani
Published: July 2021

PT. XYZ merupakan service center kendaraan bermotor yang bertugas untuk melayani konsumen akan produk-produk kendaraan bermerek X yang dibelinya dengan dibantunya oleh para teknisi beserta permesinannya dan para pelayan yang siap melayani konsumen dengan profesional dalam menanggapi masalah yag dikeluhkan oleh konsumen. Selama ini PT. XYZ belum pernah melakukan analisis mengenai kualitas pelayanannya secara intensif dan berkala, dan hanya mempertimbangkan dari sistem pengaduan pelanggan yang ada dan memperbaiki pelayanannya hanya bila ada komplain yang masuk. Hal ini menyebabkan banyakya konsumen yang masih mengeluh atas pelayanan yang didapatkannya dan mendapatkan review yang negatif di mata para pelanggan. Berdasarkan permasalahan yang ada, maka peneliti melakukan penelitian untuk mengatahui tingkat kualitas pelayanan yang dimiliki oleh perusahaan tersebut dan solusi yang dapat diusulkan yang diharapkan dapat menyelesaikan permasalahan dan meningkatkan kualitas pelayanan yang ada. Dengan menggunakan metode Service Quality didapatkan beberapa atribut pelayanan yang memiliki nilai negatif (kurang memuaskan). Secara keseluruhan tingkat kualitas pelayanan PT.XYZ mencapai 83,7% yang menandakan bahwa tingkat kualitas pelayanan sudah dalam kriteria sangat memuaskan, namun masih ada atribut yang bernilai negatif dan perlu segera diselesaikan untuk meningkatkan tingkat kualitas pelayannya agar menjadi lebih baik lagi. Maka dari itu, digunakan metode TRIZ yang dengan 40 prinsip penyelesaian masalahnya diharapkan dapat memberikan solusi yang sesuai dengan kemampuan dan kondisi perusahaan.
PENGENDALIAN PERSEDIAAN BAHAN BAKU MINYAK SAWIT DENGAN MENGGUNAKAN METODE CONTINUOUS (Q) DAN PERIODIC (P) REVIEW DI PT. XYZ
Authors: Fadilah Muhammad Faiz , Aryanny Enny
Published: July 2021

PT. Wilmar Nabati Indonesia,Tbk merupakan perusahaan industri agribisnis yang bergerak dalam bidang jasa pengolahan minyak mentah dengan kegiatan utamanya memproduksi minyak sawit. Berdasarkan sumber dari perusahaan, kerap mengalami kendala dalam pengendalian persediaan bahan baku minyak sawit, khususnya pada Bleaching Earth dan Phosphoric Acid yang disebabkan oleh kurangnya antisipasi dalam perencanaan dan pemenuhan jumlah permintaan konsumen yang berfluktuasi (probalistik) dan jangka waktu pemesanan yang tidak tetap karena adanya penyesuaian dari permintaan konsumen yang belum terencana dengan baik sehingga sering mengalami kekurangan persediaan yang menyebabkan permintaan konsumen tidak terpenuhi serta kelebihan kapasitas persediaan di berbagai gudang penyimpanan. Tujuan dari penelitian yang dilakukan adalah untuk menentukan pengendalian persediaan bahan baku minyak sawit untuk meminimasi total biaya persediaan di perusahaan. Metode yang digunakan adalah metode Continuous (Q) dan Periodic (P) Review. Hasil perhitungan didapatkan total biaya persediaan minimum adalah dengan metode Continuous Review (Q) Lost Sales sebesar Rp .740.144.076 dengan metode perusahaan sebesar Rp. 764.998.500 sehingga penghematan biaya sebesar Rp. 24.854.424 dengan presentase penghematan biaya sebesar 4%. Jumlah pemesanan Bleaching Earth per pesan bulan April 2021-Maret 2020 sebesar 68 kg dan Phosphoric Acid per pesan bulan April 2021-Maret 2022 sebesar 36 ton dengan total biaya persediaan sebesar Rp. 790.430.247,-.
NOS MEANDROS DA FORMAÇÃO TERRITORIAL CHAPECOENSE: A R-EXISTÊNCIA CAMPONESA TERRITORIALIZADA NO ASSENTAMENTO DOM JOSÉ GOMES
Authors: Trevisan Janaína Gaby , Simões Willian
Published: July 2021

O presente artigo objetiva socializar resultados de um estudo cujo recorte territorial foi o Assentamento Dom José Gomes, localizado no município de Chapecó, Oeste de Santa Catarina.  Com base em um diálogo bibliográfico-interdisciplinar, por meio de pesquisa-ação-participante e da elaboração de um mapa social junto aos assentados, argumentaremos que essa região é marcada por uma perspectiva coronelista de colonização e pela hegemonia de um modelo de desenvolvimento capitalista que submete o território camponês à lógica do capital agroindustrial de aves, suínos e leite. Análises empreendidas permitem compreender que a presença do referido assentamento no município supramencionado, assim como diferentes territorialidades específicas em seu interior, se constituem como espaço-dispositivos descoloniais frente às tradições moderno-eurocentrada-capitalista-colonial que ditou a lógica colonizadora na região.
NAS INTERFACES DA SAÚDE DO TRABALHADOR: REFLEXÕES ACERCA DO PROGRAMA DE REABILITAÇÃO PROFISSIONAL DO INSS, BRASIL
Authors: Spielmann Christiane Karla , Bovo Marcos Clair
Published: July 2021

O Programa de Reabilitação Profissional (PRP) foi criado na década de 1940 e, desde então, tem como objetivo proporcionar os meios para inserção e reinserção no mercado de trabalho, de trabalhadores que ficaram incapacitados para as funções de origem, devido ao quadro de adoecimento. Este artigo objetiva tecer reflexões sobre o processo de desenvolvimento do Programa de Reabilitação Profissional identificando as interfaces com a saúde do trabalhador. O aporte metodológico é constituído de pesquisa bibliográfica e documentos oficiais do Instituto Nacional do Seguro Social (INSS) que aborda a PRP, leis, decretos, memorandos, orientações internas e manuais de procedimento técnicos elaborados pela Previdência Social e Instituto Nacional de Seguros Social, com vista a padronizar a atuação profissional da instituição. Os resultados indicam a necessidade de repensar o Programa de Reabilitação Profissional, pois o cenário aponta para retrocesso nas garantias dos direitos dos trabalhadores.
TRABALHO E ADOECIMENTO DOCENTE: UM ESTUDO COM PROFESSORES DE UMA ESCOLA DA REDE ESTADUAL DO MUNICÍPIO DE JATAÍ (GO)
Authors: Rodrigues Souza Natalli Adriane , Rodrigues Maria José
Published: July 2021

A década de 1990 trouxe inúmeras mudanças sobre a profissão docente, que refletiram no seu trabalho, na sua qualidade de vida e, consequentemente, no seu processo de adoecimento. Por isso, buscou-se compreender com esse estudo como tem se dado o processo de adoecimento docente, tendo em vista pensar nas medidas que podem ser adotadas a fim de minimizar essa problemática. Este estudo foi realizado com professores de uma escola estadual do município de Jataí-GO, e indicou que mais de 50% dos entrevistados precisaram se ausentar do trabalho por motivos de doença, alguns destes já sofriam com a síndrome de Burnout. Como forma de reduzir essa problemática muitos profissionais falaram sobre a necessidade de valorização salarial, redução da jornada de trabalho, disponibilidade de atendimento médico-hospitalar para os professores, entre outros.Palavras chave: Trabalho. Doença. Professor.  Jataí (GO).
THE AGILE EARNED VALUE MANAGEMENT METHOD AS A COST MANAGEMENT TOOL IN SCRUM PROJECTS
Authors: Lysenko D. , Fediai Y.
Published: July 2021

According to the statistics, the majority of IT projects run 50–150 percent over budget, which indicates the importance of managing its cost. In agile methodologies which are widely used in software development, little attention is given to cost management. Lack of specialized cost management tools in agile practices raises the question of the feasibility of adapting traditional project management methods and techniques. The purpose of the research is to improve the quality of IT projects cost control processes by developing a project cost management model using the Agile Earned Value Management method. The paper discusses the EVM techniques which have been adopted to provide the benefits of traditional EVM in Agile projects. There are some misconceptions that EVM techniques are too difficult to perform effectively on projects implemented using agile approaches (i.e. Scrum framework). The challenges are primarily associated with the fact that the EVM method requires creating a complete description of project tasks and a detailed schedule of their execution at the initial stage allowing accurate estimates of the actual data and monitoring the project progress from start to completion. On the other hand, Scrum emphasizes the need for incremental, multi-level planning and discourages planning software projects down to the lowest level of decomposition in the early stages. The reason for this is the high degree of ambiguity inherent in complex software systems, and the high probability of changes that make fully defining the requirements up front nearly impossible. However, upon closer examination of Sprint attributes, such as fixed duration, fixed backlog, cost measurement of sprint tasks, the ultimate goal of delivering a minimum viable product – leads us to the conclusion that Sprint can be considered as a subproject to which the mechanism of the EVM method can be applied using the same metrics. The paper further summarizes the main provisions and guidelines of the AgileEVM method, based on which its process model is developed. The inputs of the model are initial release baseline parameters and data captured at the completion of each Sprint: Planned Sprints (PS); Planned Release Points (PRP); Budget at Complete (BAC); Points Completed (PC), Points Added (PA), and Sprint Cost (SC). The controls are the AgileEVM method guidelines. The mechanisms are project manager and necessary software (MS Excel, MS Project). At the output of the model we obtain forecast indicators: Estimate to Complete (ETC), Estimate at Complete (EAC), Number of Total Sprints (N), and Release Date (RD). The final conclusion of the conducted research is that the application of the Earned Value Management method to projects implemented with Scrum enables the project manager and the project team with a valuable tool to monitor the progress of their work and to take appropriate measures.
ASSOCIAÇÕES ENTRE O NÍVEL DE ATIVIDADE FÍSICA E AS BARREIRAS PERCEBIDAS PARA A PRÁTICA DE ATIVIDADE FÍSICA EM IDOSOS DA COMUNIDADE
Authors: Vicentini de Oliveira Daniel , Morais Freire Gabriel Lucas , Suto Aizava Paulo Vitor , Ribeiro Contreira Andressa , Fiorese Lenamar , Andrade do Nascimento Júnior José Roberto
Published: July 2021

Este estudo teve o objetivo de analisar as associações entre o nível de atividade física (AF) e as barreiras percebidas para a prática de atividade física em idosos da comunidade. Estudo transversal, com amostra composta por 970 idosos usuários das Academias da terceira idade do município de Maringá, Paraná. Foram excluídos também idosos com possíveis déficits cognitivos, avaliados por meio do Mini exame do estado mental, de acordo com a escolaridade dos mesmos. Foi utilizado o Questionário internacional de AF (IPAQ), versão curta, e o um questionário de barreiras para a prática de AF. A análise dos dados foi realizada por meio do Software SPSS versão 22.0, utilizando-se estatística descritiva e inferencial. Compromissos familiares, falta de clima adequado, falta de espaço disponível, tarefas domésticas, limitações físicas, dores leves ou mal-estar, falta de energia, falta de habilidades físicas e falta de conhecimento sobre AF foram significativamente (p<0,05) mais frequentes entre os idosos fisicamente ativos. Conlui-se que os idosos fisicamente ativos relataram mais barreiras para a prática de AF. Os achados deste estudo evidenciam a importância de programas que promovam a atividade física durante o envelhecimento.
PREVALÊNCIA E IMPACTO DA COVID-19 EM PESSOAS IDOSAS INSTITUCIONALIZADAS: UMA REVISÃO BIBLIOGRÁFICA
Authors: Lima Rebêlo Felipe , Souza Lisboa Júlio Matheus , Carneiro Rios de Oliveira Willian , Da Silva Santos Rodrigo
Published: July 2021

A taxa de letalidade, somada ao perfil exponencial de contágio e transmissão do vírus SARS-CoV2, causador da COVID-19, coloca o público idoso em evidência, sendo o maior público infectado, pois além das modificações fisiológicas do envelhecimento, as comorbidades e patologias associadas faz desse grupo o mais vulnerável. Com isso, uma realidade até então oculta vem sendo enfaticamente exposta: a fragilidade de idosos residentes em Instituições de Longa Permanência para Idosos (ILPI). Assim, o objetivo desse estudo foi realizar uma revisão bibliográfica sobre a prevalência e os impactos na saúde física e mental de idosos institucionalizados. rata-se de uma revisão de literatura simples. A pesquisa foi realizada nas bases de dados Pubmed, Scielo, Lilacs e Google Acadêmico, utilizando a estratégia de busca: “Homes for the Aged” AND Coronavirus AND “Coronavirus Infections” AND Aged.  Foram selecionados 94 artigos. Após análise, foram inclusos cinco artigos, e excluídos 89 por não serem relevantes para a temática. O levantamento bibliográfico referente a prevalência, gravidade e mortalidade por Covid-19 em idosos institucionalizados revelou um expressivo acometimento dessa população, bem como, um número significativo de casos graves e número de óbitos. Além de todas as complicações, foi notado um impacto relevante relacionado a aspectos físicos, mentais e comportamentais desse público. Contudo, ainda faz-se necessário estudos mais apronfudados de quais impactos cognitivos, musculoesqueleticos, cardiovasculares, estão sendo causados nesses idosos, visto que tal população necessita de cuidados específicos, com o intuito de diminuir os danos causados pelo vírus.
Docencia universitaria en entornos virtuales de aprendizaje
Authors: ACHARKI Zoubair
Published: July 2021

Este artículo aborda las posibilidades del uso de los entornos virtuales de aprendizaje implementados desde la propagación del Covid-19 en el ámbito universitario y sus implicaciones en la redefinición de los roles docentes y los procedimientos metodológicos. El interés de esta investigación nace de la necesidad de incorporar soluciones tecnológicas y aprovechar el potencial de la enseñanza virtual para el desarrollo de los procesos educativos desde un enfoque constructivista. En este marco, el objetivo de la investigación es mostrar la importancia que tiene la integración efectiva de los Entornos virtuales de aprendizaje para el desarrollo de un aprendizaje significativo y determinar las posibilidades que ofrece la aplicación didáctica de esta modalidad de enseñanza para mejorar y ampliar el proceso de construcción del conocimiento. Mediante un enfoque cualitativo, la investigación está basada en una revisión documental de la literatura que resalta la utilidad de valorar los entornos virtuales como una poderosa herramienta didáctica para la construcción de escenarios de enseñanza basados en la modalidad virtual. Asimismo, se exponen los nuevos roles docentes que implica la enseñanza universitaria en este modelo educativo. Se concluye que el uso de los Entornos virtuales de aprendizaje demanda nuevos roles docentes (acompañante, tutor, diseñador de escenarios educativos y motivador de aprendizajes) y posibilita un aprendizaje constructivista a partir de distintos tipos de interactividad (individual, instrumental y social).
La integración de las TIC en la Universidad marroquí: Aproximación pedagógica
Authors: DOUIEB Mouhcine Mohammed
Published: July 2021

A causa de la situación que conoce el mundo con la pandemia del CORONAVIRUS, las universidades marroquíes han adoptado medidas ante la crisis que se relacionan con la suspensión de las clases presenciales; lo que ha dado origen a la creación de nuevas modalidades de aprendizaje mediante la utilización de plataformas y otras Tecnologías para mantener la enseñanza y con el fin de evitar la propagación del virus y mitigar su impacto. la educación a distancia ha demostrado ser una de las soluciones eficientes para satisfacer las necesidades de los estudiantes; pero las instituciones educativas en general, y las universidades en particular, se han visto obligados a integrar las TIC en la enseñanza sin ningún estudio previo de esta integración. En el presente artículo pretendemos presentar un enfoque pedagógico de la integración de las TIC proyectando oportunidades para el aprendizaje y la innovación en la educación posterior a la pandemia.
EDITORIAL
Authors: Echazarreta Soler Carmen
Published: July 2021

EDITORIAL NÚMERO 20 COMMUNICATION PAPERS
EXAMINATION OF CHEMICAL REPRESENTATIONS IN TURKISH HIGH SCHOOL CHEMISTRY TEXTBOOKS
Authors: Demirdöğen Betül
Published: July 2021

The aim of this research was to examine the chemical representations that are present in Turkish high school chemistry textbooks. Content analysis was the method of analysis. Four chemistry textbooks, which were commonly used in Turkey, for each grade (i.e., from 9th to 12th), were selected. When evaluating the representations, a rubric including five main criteria was used: (1) type of representation, (2) interpretation of representations’ surface features, (3) representations’ relatedness to text, (4) properties of representations’ caption, and (5) degree of correlation between subordinates comprising a multiple representation. The results of the research revealed that the chemical representations used in the textbooks are mainly macroscopic, symbolic, and hybrid. Majority of the representations had explicit surface features and appropriate captions. Moreover, they were completely related to the text. Most of the multiple representations had sufficient links between their subordinates. Recommendations for textbook writers and future research are provided.
Keywords: chemistry textbooks, chemical representations, generic qualitative research, content analysis.
THE EFFECTIVENESS OF VIRTUAL SCIENCE TEACHING MODEL (VS-TM) TO IMPROVE STUDENT’S SCIENTIFIC CREATIVITY AND CONCEPT MASTERY ON SENIOR HIGH SCHOOL PHYSICS SUBJECT
Authors: Wicaksono Iwan , Wasis Wasis , Madlazim Madlazim
Published: July 2021

VS-TM refers to a teaching model that applies virtual media aided scientific approach. VS-TM is required to prepare students who are trained problem-solving process through scientific creative thinking opportunities and complete physics concept mastery. The aim of this research is to analyze the effectiveness of VS-TM to improve student’s scientific creativity and concept mastery on Senior High School physics subject. This research involves 318 students from 3 State Senior High Schools in Jember Regency, Indonesia. Pre-test and post-test scores obtained using Sign Test and Paired Sample T-test are used to analyze VS-TM impact on student’s scientific and concept mastery improvement. Such impact consistency then is observed through the calculation of n-gain achieved by each testing class using ANOVA. The research of VS-TM application on Senior High School physics subject indicates that there is a high categorized significant improvement student’s scientific creativity (n-gain > 0.7) and concept mastery (n-gain > 0.8) on physics subject, before and after VS-TM application with p-value is < 0.05 and there is not any difference between 9 testing classes with p-value is > 0.05. Keywords: concept mastery, scientific creativity, virtual science teaching model.
REVISITING STUDENTS' PERCEPTIONS OF RESEARCH SCIENTISTS – OUTCOMES OF AN INDIRECT DRAW-A-SCIENTIST TEST (InDAST)
Authors: Bernard Paweł , Dudek Karol
Published: July 2021

What is the image of research scientists in students’ minds? Studies in this area have been underway for more than fifty years and suggest that scientists are perceived as bespectacled men in lab coats, working alone in rooms full of basic lab glassware. This image has been derived mainly from the analysis of drawings, known as the Draw-A-Scientist Test (DAST). However, DAST instructions are based on the word, “scientists”, the meaning of which seems too narrow for today’s world and not reflecting the wide range of STEM-based research careers. Moreover, the instructions can predetermine the number and gender of people in the picture. For this reason, a new tool has been developed which provides an indirect analysis – the Indirect Draw-A-Scientist Test (InDAST). The new instrument was used in an experiment with secondary-school students (n = 851), and the resulting image of the scientist was compared with an earlier experiment that employed the original DAST instructions. The results showed that the basic attributes, appearance, and workplace of scientists are similar in both studies, but the new procedure disproved the theory that scientists are perceived as men working alone and that female students do not see themselves as scientists. Keywords: drawings analysis, gender and science, image of scientists, scientist stereotype, STEM careers.