bluuebunny/crossref_metadata_2025 huggingface dataset:
MATERIAL DE APOIO NO FORMATO ONLINE PARA CONTRIBUIÇÃO À ACESSIBILIDADE DE PESSOAS COM DEFICIÊNCIA VISUAL
Authors: Ávila Wellington , Ávila Washington , Silva Marcos Antonio
Published: April 2021

Introdução: O presente estudo teve como finalidade contribuir para a acessibilidade de pessoas cegas e com algum nível de função visual deficiente, no que tange o Ensino à Distância (EaD) no Brasil tendo como foco a sugestão da utilização de material de apoio aos estudos no formato online, visto que as instituições de ensino precisam envidar seus esforços na formação educacional EaD desse público. Objetivo: O objetivo da pesquisa é proporcionar para as instituições de ensino meios de apoio e opções para a inclusão dos deficientes visuais e cegos à modalidade de ensino EaD, visando potencializar o design instrucional para a Educação Especial com a oferta de materiais e ensino de qualidade. Material e métodos: Sugere-se a oferta dos materiais de apoio em websites que possuem acessibilidade web, ou seja, os que proporcionam a qualquer informação presente em texto como leitura falada por meio de um sintetizador de voz. A tecnologia assistiva mencionada precisa estar compatível com o Sistema Operacional e disponível para computadores, tablets e celulares, bem como a responsividade dos websites. Para os usuários cegos é sugerida a utilização de ferramentas como: NVDA, Orca, VoiceOver, TalkBack e DOSVOX. Já para os usuários com algum nível visual de deficiência, sugere-se: LentePro, Magnifixer, ZoomIt, High Contrast, Dark Background and Light Text, entre outros. Resultados: Espera-se que as instituições em meio à pandemia consigam adotar as tecnologias satisfatoriamente podendo atender grande parte dos estudantes cegos e deficientes visuais, bem como o aumentar a produtividade acadêmica e o nível de participação nas atividades. Conclusão: Por fim conclui-se que as instituições de ensino focaram nas tecnologias da educação a distância, mas é importante compreender as questões que motivam a discriminação e preconceitos por falta de um olhar mais crítico para um público que carece de inclusão social e agora acessibilidade virtual.
Transformación digital: del lifting a la reconversión
Authors: Vacas Aguilar Francisco
Published: April 2021

La transformación digital constituye el gran proceso pendiente de completar en una gran mayoría de las organizaciones tras una primera etapa de integración de dispositivos y redes digitales.
La indefinición del concepto y la carencia de unos objetivos identificables frenan este proceso de evolución o lo devalúan a niveles superficiales. Es necesario, por tanto, fijar una estrategia clara, con tácticas progresivas, y definir las variables más importantes de la transformación digital.
Disparities in particulate matter (PM10) origins and oxidative potential at a city scale (Grenoble, France) – Part 1: Source apportionment at three neighbouring sites
Authors: Borlaza Lucille Joanna S. , Weber Samuël , Uzu Gaëlle , Jacob Véronique , Cañete Trishalee , Micallef Steve , Trébuchon Cécile , Slama Rémy , Favez Olivier , Jaffrezo Jean-Luc
Published: April 2021

Abstract. A fine-scale source apportionment of PM10 was conducted in three different urban sites (background, hyper-center, and peri-urban) within 15 km of the city in Grenoble, France using Positive Matrix Factorization (PMF 5.0) on measured chemical species from collected filters (24 h) from February 2017 to March 2018. To improve the PMF solution, several new organic tracers (3-MBTCA, pinic acid, phthalic acid, MSA, and cellulose) were additionally used in order to identify sources that are commonly unresolved by classic PMF methodologies. An 11-factor solution was obtained in all sites, including commonly identified sources from primary traffic (13 %), nitrate-rich (17 %), sulfate-rich (17 %), industrial (1 %), biomass burning (22 %), aged sea salt (4 %), sea/road salt (3 %), and mineral dust (7 %), and the newly found sources from primary biogenic (4 %), secondary biogenic oxidation (10 %), and MSA-rich (3 %). Generally, the chemical species exhibiting similar temporal trends and strong correlations showed uniformly distributed emission sources in the Grenoble basin. The improved PMF model was able to obtain and differentiate chemical profiles of specific sources even at high proximity of receptor locations, confirming its applicability in a fine-scale resolution. In order to test the similarities between the PMF-resolved sources, the Pearson distance and standardized identity distance (PD-SID) of the factors in each site were compared. The PD-SID metric determined whether a given source is homogeneous (i.e., with similar chemical profiles) or heterogeneous over the three sites, thereby allowing better discrimination of localized characteristics of specific sources. Overall, the addition of the new tracers allowed the identification of substantial sources (especially in the SOA fraction) that would not have been identified or possibly mixed with other factors, resulting in an enhanced resolution and sound source profile of urban air quality at a city scale.
Formation of nighttime sulfuric acid from the ozonolysis of alkenes in Beijing
Authors: Guo Yishuo , Yan Chao , Li Chang , Ma Wei , Feng Zemin , Zhou Ying , Lin Zhuohui , Dada Lubna , Stolzenburg Dominik , Yin Rujing , Kontkanen Jenni , Daellenbach Kaspar R. , Kangasluoma Juha , Yao Lei , Chu Biwu , Wang Yonghong , Cai Runlong , Bianchi Federico , Liu Yongchun , Kulmala Markku
Published: April 2021

Abstract. Gaseous sulfuric acid (SA) has received a lot of
attention for its crucial role in atmospheric new particle formation (NPF). And for this reason, studies until now have mainly focused on daytime SA
when most NPF events occur. While daytime SA production is driven by
SO2 oxidation of OH radicals of photochemical origin, the formation of
SA during nighttime and its potential influence on particle formation remains
poorly understood. Here we present evidence for significant nighttime SA
production in urban Beijing during winter, yielding concentrations between
1.0 and 3.0 × 106 cm−3. We found a high frequency
(∼ 30 %) of nighttime SA events, which are defined by the
appearance of a distinct SA peak observed between 20:00 and 04:00 local
time, with the maximum concentration exceeding 1.0 × 106 cm−3. These events mostly occurred during unpolluted nights with a low
vapor condensation sink. Furthermore, we found that under very clean
conditions (visibility > 16.0 km) with abundant ozone
(concentration > 2.0 × 1011 cm−3,
∼ 7 ppb), the overall sink of SA was strongly correlated with
the products of O3, alkenes and SO2 concentrations, suggesting
that the ozonolysis of alkenes played a major role in nighttime SA formation
under such conditions. This is in light of previous studies showing that
the ozonolysis of alkenes can form OH radicals and stabilized Criegee
intermediates (SCIs), both of which are able to oxidize SO2 and thus
lead to SA formation. However, we also need to point out that there exist
additional sources of SA under more polluted conditions, which are not
investigated in this study. Moreover, there was a strong correlation between
SA concentration and the number concentration of sub-3 nm particles on both
clean and polluted nights. Different from forest environments, where
oxidized biogenic vapors are the main driver of nighttime clustering, our
study demonstrates that the formation of nighttime cluster mode particles in
urban environments is mainly driven by nighttime SA production.
Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling
Authors: Alyosef Ayham , Cimini Domenico , Luini Lorenzo , Riva Carlo , Marzano Frank S. , Biscarini Marianna , Milani Luca , Martellucci Antonio , Gentile Sabrina , Nilo Saverio T. , Di Paola Francesco , Alkhateeb Ayman , Romano Filomena
Published: April 2021

Abstract. Ground-based microwave radiometer (MWR) observations of downwelling brightness temperature
(TB) are commonly used to estimate atmospheric attenuation at relative
transparent channels for radio propagation and telecommunication purposes. The atmospheric
attenuation is derived from TB by inverting the radiative transfer equation with a
priori knowledge of the mean radiating temperature (TMR). TMR is usually
estimated by either time-variant site climatology (e.g., monthly average computed from atmospheric
thermodynamical profiles) or condition-variant estimation from surface meteorological
sensors. However, information on TMR may also be extracted directly from MWR
measurements at channels other than those used to estimate atmospheric attenuation. This paper
proposes a novel approach to estimate TMR in clear and cloudy sky from independent MWR
profiler measurements. A linear regression algorithm is trained with a simulated dataset obtained
by processing 1 year of radiosonde observations of atmospheric thermodynamic profiles. The
algorithm is trained to estimate TMR at K- and V–W-band frequencies (22–31 and
72–82 GHz, respectively) from independent MWR observations at the V band
(54–58 GHz). The retrieval coefficients are then applied to a 1-year dataset of real
V-band observations, and the estimated TMR at the K and V–W band is compared with
estimates from nearly colocated and simultaneous radiosondes. The proposed method provides
TMR estimates in better agreement with radiosondes than a traditional method, with
32 %–38 % improvement depending on frequency. This maps into an expected improvement in
atmospheric attenuation of 10 %–20 % for K-band channels and ∼30 % for V–W-band
channels.
Divergent climate feedbacks on winter wheat growing and dormancy periods as affected by sowing date in the North China Plain
Authors: Liu Fengshan , Chen Ying , Bai Nini , Xiao Dengpan , Bai Huizi , Tao Fulu , Ge Quansheng
Published: April 2021

Abstract. Crop phenology exerts measurable impacts on soil surface
properties, biophysical processes and climate feedbacks, particularly at
local or regional scales. Nevertheless, the response of surface biophysical
processes to climate feedbacks as affected by sowing date in winter wheat
croplands has been overlooked, especially during winter dormancy. The
dynamics of leaf area index (LAI), surface energy balance and canopy
temperature (Tc) were simulated by a modified SiBcrop (Simple Biosphere) model under two
sowing date scenarios (early sowing, EP; late sowing, LP) at 10 stations in
the North China Plain. The results showed that the SiBcrop model with a modified
crop phenology scheme well simulated the seasonal dynamic of LAI, Tc,
phenology and surface heat fluxes. An earlier sowing date had a higher LAI with
earlier development than a later sowing date. But the response of Tc to
the sowing date exhibited opposite patterns during the dormancy and active-growth periods: EP led to higher Tc (0.05 K) than LP in the dormancy
period and lower Tc (−0.2 K) in the growth period. The highest difference
(0.6 K) between EP and LP happened at the time when wheat was sown in EP but
was not in LP. The higher LAI captured more net radiation with a warming
effect but partitioned more energy into latent heat flux with cooling. The
climate feedback of the sowing date, which was more obvious in winter in the
northern areas and in the growing period in the southern areas, was
determined by the relative contributions of the albedo radiative process and
partitioning non-radiative process. The study highlights the surface
biophysical process of land management in modulating climate.
A global climatology of the ocean surface during the Last Glacial Maximum mapped on a regular grid (GLOMAP)
Authors: Paul André , Mulitza Stefan , Stein Rüdiger , Werner Martin
Published: April 2021

Abstract. We present a climatology of the near-sea-surface temperature (NSST) anomaly and the sea-ice extent during the Last Glacial Maximum (LGM, 23 000–19 000 years before present) mapped on a global regular 1∘×1∘ grid. It is an extension of the Glacial Atlantic Ocean Mapping (GLAMAP) reconstruction of the Atlantic NSST based on the faunal and floral assemblage data of the Multiproxy Approach for the Reconstruction of the Glacial Ocean Surface (MARGO) project and several recent estimates of the LGM sea-ice extent. Such a gridded climatology is highly useful for the visualization of the LGM climate, calculation of global and regional NSST averages, and estimation of the equilibrium climate sensitivity, as well as a boundary condition for atmospheric general circulation models. The gridding of the sparse NSST reconstruction was done in an optimal way using the Data-Interpolating Variational Analysis (DIVA) software, which takes into account the uncertainty in the reconstruction and includes the calculation of an error field. The resulting Glacial Ocean Map (GLOMAP) confirms the previous findings by the MARGO project regarding longitudinal and meridional NSST differences that were greater than today in all oceans. Taken at face value, the estimated global and tropical cooling would imply an equilibrium climate sensitivity at the lower end of the currently accepted range. However, because of anticipated changes in the seasonality and thermal structure of the upper ocean during the LGM as well as uneven spatial sampling, the estimated cooling and implied climate sensitivity are likely to be biased towards lower values.
A spectral approach to estimating the timescale-dependent uncertainty of paleoclimate records – Part 2: Application and interpretation
Authors: Dolman Andrew M. , Kunz Torben , Groeneveld Jeroen , Laepple Thomas
Published: April 2021

Abstract. Proxy climate records are an invaluable source of information about the earth's climate prior to the instrumental record. The temporal and spatial coverage of records continues to increase; however, these records of past climate are associated with significant uncertainties due to non-climate processes that influence the recorded and measured proxy values. Generally, these uncertainties are timescale dependent and correlated in time. Accounting for structure in the errors is essential for providing realistic error estimates for smoothed or stacked records, detecting anomalies, and identifying trends, but this structure is seldom accounted for. In the first of these companion articles, we outlined a theoretical framework for handling proxy uncertainties by deriving the power spectrum of proxy error components from which it is possible to obtain timescale-dependent error estimates. Here in Part 2, we demonstrate the practical application of this theoretical framework using the example of marine sediment cores. We consider how to obtain estimates for the required parameters and give examples of the application of this approach for typical marine sediment proxy records. Our new approach of estimating and providing timescale-dependent proxy errors overcomes the limitations of simplistic single-value error estimates. We aim to provide the conceptual basis for a more quantitative use of paleo-records for applications such as model–data comparison, regional and global synthesis of past climate states, and data assimilation.
Aerogeophysical characterization of Titan Dome, East Antarctica, and potential as an ice core target
Authors: Beem Lucas H. , Young Duncan A. , Greenbaum Jamin S. , Blankenship Donald D. , Cavitte Marie G. P. , Guo Jingxue , Bo Sun
Published: April 2021

Abstract. Based on sparse data, Titan Dome has been identified as having a higher probability of containing ice that would capture the middle Pleistocene transition (1.25 to 0.7 Ma). New aerogeophysical observations (radar and laser altimetry) collected over Titan Dome, located about 200 km from the South Pole within the East Antarctic Ice Sheet, were used to characterize the region (e.g., geometry, internal structure, bed reflectivity, and flow history) and assess its suitability as a paleoclimate ice core site. The radar coupled with an available ice core chronology enabled the tracing of dated internal reflecting horizons throughout the region, which also served as constraints on basal ice age modeling. The results of the survey revealed new basal topographic detail and better constrain the ice topographical location of Titan Dome, which differs between community datasets. Titan Dome is not expected to be relevant to the study of the middle Pleistocene transition due to a combination of past fast flow dynamics, the basal ice likely being too young, and the temporal resolution likely being too coarse if 1 Ma ice were to exist.
Arbitragem para a resolução de controvérsias laborais no futebol brasileiro
Authors: Oliveira Leonardo
Published: April 2021

This article intends to discuss arbitration as a way to solve labor conflicts in Brazilian soccer.
Consumer protection and arbitration in mass consumption adhesion contracts. A comparative look between Brazil and U.S.
Authors: Gevaerd Jair
Published: April 2021

Based upon (i) a comparative reading of the consumer protection legal system in Brazil and in the United States, regarding mass consumption adhesion contracts, and (ii) the analysis of the most recent precedents of the American Supreme Court validating arbitration agreements in which consumers waive class actions, the article highlights the different role that arbitration plays in both institutional environments. The article also questions whether an uniformization of the consumer protection system referring mass consumption adhesion contracts would be (a) possible and/or (b) desirable, in view of the ever-growing globalization and the economic consequences of uneven domestic legal regimes, mainly in highly monopolized industries as telecommunication, motor vehicle manufacturing/distribution, insurance, financial services and products, processed food, among others.
Direito ambiental, arbitragem e resolução alternativa de controvérsias: uma visão conciliadora
Authors: Bezerra Luiz Gustavo
Published: April 2021

The present article seeks, through a critical evaluation, to analyze the possibility of submitting environmental issues to methods of alternative dispute resolution, such as arbitration, conciliation and mediation. The main difficulties lie in the relationship between arbitration and environmental matters, since the legal requirements to submit a given dispute to arbitration are the negotiability and the ability to be financially expressed of the rights in discussion. The challenge lies in the fact that the environment is known as a collective or common right, so some understand that environmental interests could not be transacted, and that the environment would not have a financial expression; therefore, not fulfilling those two attributes of objective arbitrability. However, it is important to stress that there is a part of the environment that can be negotiated, and has already been routinely transacted. Also, environmental damage clearly has patrimonial dimensions, which can be financially expressed and monetarily valued. Thus, this article’s central discussion revolves around the possibility of submitting interests involving environmental matters to alternative dispute resolution, contributing to the construction of a conciliatory perspective between alternative dispute resolution methods, particularly arbitration, and environmental issues.
A importância da aplicabilidade das normas técnicas de cabeamento estruturado de instituições de ensino superior visando a Educação Remota e a Distância (EAD)
Authors: Neves André Ricardo Nascimento das , Brito Max Leandro de Araújo , Shitsuka Ricardo , Shitsuka Dorlivete Moreira , Shitsuka Caleb , Boghi Cláudio , Risemberg Rabbith Ive Carolina Shitsuka
Published: April 2021

Atualmente, é comum observar as empresas fazendo grandes investimentos em switches, roteadores de alto desempenho, fontes processadoras não – redundantes e softwares. Contudo, desconhecem o meio físico, ou seja, o cabeamento estruturado. Para que o sistema funcione de forma adequada faz-se necessário que a estrutura seja montada de acordo com norma. O presente estudo tem o objetivo de apresentar um estudo de pesquisa-ação na qual se pode verificar a importância da rede de computadores em uma instituição de ensino, mostrando a diferença de desempenho devido investimento na infraestrutura em duas condições: uma de rede não guiada e outra de rede com fibra óptica. Os resultados da mudança no tipo de infraestrutura apontam para o atendimento da necessidade de velocidade por parte dos usuários professores e alunos. Sugere-se que as instituições de ensino superior que optam só por redes sem cabeamento procurem observar a satisfação dos usuários nesses tempos nos quais as redes de computadores tornam-se um dos principais itens da infraestrutura tecnológica das instituições de ensino superior.
DANÇAS, POÉTICAS E OS SABERES CORPORIFICADOS
Authors: Silva Sales Sebastião , Machado Lara Rodrigues
Published: April 2021

A narrativa poética de Lara Rodrigues Machado e Sebastião Silva oferece as leitoras e leitores histórias de experiências da vida e ou da cena que se desdobram por meio de encontros diversos em busca da construção comunitária de uma dança ao encontro permanente dos sentidos para a vida pautados nos saberes tradicionais de povos e culturas do Brasil. Por meio de trocas vividas com a proposta metodológica do Jogo da Construção Poética no âmbito das Universidades Federais do Rio Grande do Norte (UFRN), do Sul da Bahia (UFSB) e da Escola de Dança da UFBA apontamos para questionamentos significativos ao pensar, sentir e viver uma dança descentralizada, que propõe pesquisas em constantes transformações nascidas das vivencias, estudos e pensamentos críticos em contraponto à lógica de produção logocêntrica, meritocrática e subalternizante que caracteriza a ordem do modelo civilizacional vigente em grande parte do sistema educacional.
OITO PREMISSAS SOBRE O BALÉ EM GOIÂNIA:
Authors: Ferreira Rousejanny da Silva
Published: April 2021

Este artigo propõe o levantamento de oito premissas para compreender diversas camadas da formação social, histórica e educacional do balé em Goiânia. Partindo do desejo de catalogação da dança brasileira por Eduardo Sucena com o livro A Dança Teatral no Brasil, ainda em 1988, trago uma série de dados e fatos dos processos históricos do balé constituído em Goiânia para disparar reflexões consideradas necessárias e longe de conclusões mais profundas. Portanto, este é um texto disparador, tendo os dados catalográficos como impulsionadores para outros por vires de pesquisa e produção na relação balé e cidade. Tomo como principais fontes de pesquisa já constituídas, os trabalhos de Rejane Bonomi Schifino (2011, 2012, 2019), o documentário Danças Daqui (2017) e a pesquisa de Alexssandra Sousa (2018), produções locais que já indicaram algumas respostas parciais e levantaram tantas outras questões.
(A)GENTES DE CHOQUE FIESTA, POTENCIA Y PLACER
Authors: Ibargoyen Itzel , Lans Sofía , Arismendi Matias , Gramoso Martina
Published: April 2021

El presente escrito reflexiona, desde Uruguay, sobre el Choque como dispositivo relacional y performático para ponerlo a funcionar en la vía pública. El Choque es una práctica corporal híbrida, donde confluyen diferentes ritmos que podemos nombrar como de raíz africana y que nos permite pensar y accionar en torno a los mandatos de masculinidad, los cuerpos normados, la captura del placer y la fiesta como potencia colectiva. El texto aborda algunas ideas iniciales sobre estos temas desde un cuerpo que suda, grita y se manifiesta en palabras. Con la convicción de que es necesario una búsqueda de la potencia de lo común y la relevancia que la danza puede tener en estos procesos de germinación de otras corporalidades.

Palabras claves: corporalidades; Choque; fiesta.
THE FEET UNDERSTAND
Authors: Mira Ana
Published: April 2021

ABCDEFG (1994) do coreógrafo, bailarino e realizador Russell Dumas é um filme de um dueto dançado. Este filme é pensado aqui como um projecto de corporalidade autónomo. Uma exposição sobre particularidades na obra de Russell Dumas determinantes para a realização do filme em causa, a saber — a do trabalho do bailarino; a da interacção dos bailarinos e dos bailarinos com o coreógrafo; e a da relação entre o dueto desempenhado e a realização do filme —, permite uma análise sobre a especificidade própria da relação que o observador pode estabelecer com o objecto/acontecimento ABCDEFG (1994).

Pretende-se detectar zonas de indeterminação e indiscernabilidade que permitem, no fluxo de inferências de cada percepção, situarmo-nos num território de experimentação da permanente e plástica reconstrução do espaço topológico do corpo.
MINI OPCAB Operation: Surgical Technique
Authors: Benetti Federico , Scialacomo Natalia , Mazzolino Gustavo
Published: April 2021

Introduction: We describe how to perform left internal mammary artery (LIMA) bypass to the left anterior descending (LAD) artery, the so-called MINI Off-pump Coronary Artery Bypass (MINI OPCAB).
Materials and Methods: We included patients with a demonstrated predominant ischemia related to the LAD territory. Of 70 patients who were operated upon at the Benetti Foundation, 10 received hybrid revascularization.
Surgical Technique: The patient is prepared as for a standard coronary bypass operation through sternotomy. The sternum is opened to the 3rd or 4th intercostal space depending on the anatomy, and a retractor is put in place. The left mammary artery is generally dissected to about 8 cm and isolated without the veins. Importantly, the angle of the superior part, where the mammary artery is attached to the sternum, needs to be below 20% to avoid any potential kinking. The pericardium is cleaned to identify the area of the pulmonary artery. The pericardium is opened to the apex and towards the right to around 5 to 6 cm initially. In most cases, the area of the LAD can be seen and the potential area of the anastomosis is defined. The patient is heparinized and the LAD is occluded with 5-0 Proline. A mechanical stabilizer is put in place and the anastomosis is performed. When the bypass is finished, and before sutures are tied, the stitches of 5-0 polypropylene around the artery are released, along with the clamp of the mammary artery; the anastomosis is then tied. The mechanical stabilizer is removed, the stitches of the pericardium are released and the flow of the graft is measured, while ensuring that there is no kinking. If the flow and Pulsatility and Resistance (PR) are acceptable, the mammary is fixed with 2 stitches of 7-0 polypropylene on both sides around 1 cm from the anastomosis. The heparin is reverted with protamine and a drain is put in place, while taking care to avoid any chance of touching the mammary artery or the anastomosis. The sternum is closed with 1 or 2 wires.
Results: Operative mortality in this series was 0%; one patient was converted to sternotomy off-pump (1.4%). None of the grafts were revised after measurement with a Medistim system (Medistim ASA, Oslo, Norway). Fifty five patients (79%) were extubated in the operating room The average hospitalization stay was 60 hours (SD 17, 95% CI). Sixteen patients who underwent the LIMA-to-LAD procedure were restudied, with 100% patency. At 144 months, 82% of the patients were alive and 68% were asymptomatic.
Conclusion: Additional clinical experience is required to be able to reproduce this operation on a large scale and expand the MINI OPCAB operation in hybrid revascularization.
MENINGKATKAN KEMAMPUAN HUMAN RESOURCES PORTAL DENGAN CERTIFICATION MANAGEMENT SYSTEM (CMS) SEBAGAI EFEKTIVITAS PROSES SERTIFIKASI (STUDI KASUS DI PT. MOTOR INDONESIA)
Authors: Fariani Rida Indah , Rahmawati Dian , Salam Fahmi Nur
Published: April 2021

Abstrak--Paper ini membahas efektivitas dan improvement yang dilakukan pada proses bisnis pelatihan dan sertifikasi karyawan di PT. Motor Indonesia (PT MI). Efektivitas dirasa perlu dilakukan karena proses pelatihan dan sertifikasi seringkali tidak sesuai dengan kelas dan posisi karyawan dan kebutuhan organisasi. Selain itu proses paengajuan, persetujuan, pemetaan dan analisa pencapaian pelatihan dan sertifikasi memakan waktu lama. Untuk mewujudkan efektivitas tersebut, dibuatlah suatu aplikasi Certification Management System (CMS) dengan tujuan mengatasi masalah yang ada. Aplikasi CMS merupakan aplikasi berbasis web yang terintegrasi dengan Human Resources (HR) Portal. CMS dibangun menggunakan bahasa pemrograman ASP.NET dengan basis data SQL Server Management Studio 2012. Metodelogi yang digunakan adalah Metodologi Scrum. Dari pengujian dan implementasi aplikasi yang dilakukan, aplikasi CMS terbukti dapat mempermudah dalam pendataan dan pemetaan karyawan dengan kompetensi yang sesuai berdasarkan kelas, posisi, dan organisasi serta mempermudah karyawan dalam mengajukan sertifikasi untuk kompetensi yang dibutuhkan. Dalam hal reduksi sumberdaya, penggunaan CMS dapat mengurangi pemakaian kertas sebanyak 5.472 kertas A3 per tahun, mengurangi waktu penyetujuan sertifikasi dan pemetaan sertifikasi karyawan sebanyak 66% serta penurunan potensi kesalahan pemetaan karyawan dan sertifikasi sebanyak 70%.

Kata Kunci : CMS, Certification Management System, Scrum, HRIS
MONITORING KWH BERBASIS SYMPTOM MANAGEMENT DAN IOT UNTUK PENGHEMATAN LISTRIK PABRIK X
Authors: Koerniawan Yani , Kharisman Ivan , Silalahi Helena Ledyana Saurma
Published: April 2021

Abstrak--Biaya energi untuk proses produksi mobil di pabrik X didominasi oleh listrik sebesar 60%, sedangkan 40% sisanya dari gas dan air. Untuk menjaga keuntungan, pabrik X menetapkan target penghematan energi listrik 10% per tahun. Beberapa penelitian telah berhasil membuat sistem pengontrolan kwh yang mampu diakses melalui internet dan tambahan fungsi notifikasi kepada pengguna melalui sms. Tetapi fungsi notifikasi ini hanya informasi bahwa pemakain kwh melebihi standar, tanpa diketahui apa yang harus dilakukan agar kwh sesuai standar. Permasalahannya karena pengguna tidak mengetahui faktor-faktor apa saja yang mempengaruhi kwh. Hal ini menjadi menjadi permasalahan penelitian. Faktor-faktor yang mempengaruhi kwh dicari melalui parameter-parameter symptom yakni gejala-gejala pada mesin yang diamati untuk mencegah breakdown. Parameter-parameter symptom ini terindikasi mempengaruhi kwh. Tujuan dari penelitian ini adalah membuktikan apakah parameter-parameter symptom mempengaruhi kwh, dan menghitung persentase pengaruh parameter-parameter symptom terhadap aktual kwh, lalu membuktikan usaha perbaikan terhadap parameter-parameter tersebut mampu menghemat listrik 10%. Penelitian dimulai dari Maret hingga Juni 2020, dengan data kuantitatif berdasarkan parameter-parameter symptom di mesin chiller. Pengujian data menggunakan metode regresi linier berganda dengan aplikasi SPSS (Statistical Package for the Social Sciences). Terbukti parameter-parameter symptom mempengaruhi kwh dan dapat menjadi acuan perbaikan kwh, dengan hasil penghematan listrik 15%, melebihi target 10%.

Kata Kunci : parameter-parameter symptom, regresi linier berganda, penghematan listrik
P PENGGUNAAN METODE IMPRESSED CURRENT CATHODIC PROTECTION (ICCP) DALAM PENCEGAHAN KOROSI PADA JALUR PIPA 24” SKG X PRABUMULIH BARAT – CAMBAI PT PERTAMINA EP ASSET 2 FIELD PRABUMULIH
Authors: Alida Roni , Budiono Budiono
Published: April 2021

Salah satu penyebab kerusakan pada sistem jaringan dan fasilitas pipa distribusi gas yaitu korosi. Untuk mencegah terjadinya korosi pada pipa flowline, PT Pertamina EP Asset 2 Field Prabumulih yang berada di SKG X Prabumulih Barat menggunakan sistem proteksi katodik. Proteksi Katodik (Cathodic Protection) adalah teknik yang digunakan untuk mengendalikan korosi pada permukaan logam dengan menjadikan permukaan logam tersebut sebagai katoda dari sel elektrokimia. Pada PT Pertamina EP Asset 2 Field Prabumulih digunakan sistem proteksi katodik arus tanding atau yang dikenal dengan ICCP (Impressed Current Cathodic Protection), dimana metode ini lebih efektif digunakan dari pada menggunakan metode anoda korban atau SACP (Sacrificial Anode Cathodic Protection). Proteksi katodik dianggap bekerja jika, potensial minimum adalah 850 mV, potensial maksimum adalah1.300 mV,range inilah yang dijadikan nilai oleh PT Pertamina EP Asset 2 Field Prabumulih terhadap pengukuran potensial pipanya untuk mencegah dari korosi. Umur pipa line SKG X – Cambai sendiri yaitu 40 tahun, maka dari itu pemilihan jenis anodanya harus mengikuti umur pipa tersebut supayalebihekonomisdanlebih efisien. Dalam perhitungan jumlah anoda,  PT Pertamina EP Asset 2 Field Prabumulih menggunakan 1 pcs anoda untuk memproteksi jalur pipa seluas area 19,33 m2. Adapun parameter-parameter keberhasilan dalam pelaksanaan sistem proteksi katodik ini yaitu tegangan yang dihasilkan tidak melebihi range yang ditentukan, yaitu 850 – 1.300 mV dan pipaterlindungi dari korosi.
P PRODUKSI BIODIESEL DARI MINYAK KACANG TANAH DARI PEDAGANG SATE MENGGUNAKAN 3 TAHAPAN PROSES DAN PERBEDAAN KONSENTRASI KATALIS KOH
Authors: Faputri Achmad Faisal , Setiorini Indah Agus
Published: April 2021

Pembuatan biodiesel salah satu bahan baku yang digunakan yaitu  minyak nabati. Kacang tanah memiliki kandungan minyak nabati yang cukup besar. Kandungan minyak nabati yang terdapat pada kacang tanah berkisar antara  40–60 % wt, selain itu kandungan  pada kacang tanah yaitu  protein kasar 25–30 %wt, serta kadar air, serat, dan abu sebesar 10–25 %wt dalam daging biji kacang tanah yang bebas dari cangkangnya. Minyak kacang tanah pada penelitian ini diambil dari pedagang sate karena minyak ini menyebabkan bau yang tidak enak pada bumbu kacang sate sehingga perlu dihilangkan oleh pedagang sate. Penelitian ini diharapkan mendapatkan kondisi yang optimal dengan menggunakan 3 tahapan, adsopsi, esterifikasi dan transesterifikasi minyak kacang tanah  untuk menghasilkan biodiesel yang optimal sesuai dengan SNI. Metode penelitian pembuatan biodiesel dari biji kacang tanah dilakukan dengan cara preparasi biji kacang tanah yang didapatkan dari hasil samping pembuatan bumbu kacang dengan proses adsorpsi menggunakan arang yang diaktivasi selanjutnya proses esterifikasi dan transesterifikasi serta tahapan pemurnian biodiesel dari pengotor. Hasil analisa Asam Lemak Bebas kacang tanah sebelum treatment sebesar 1,28 % setelah dilakukan adsorpsi dengan arang aktif menjadi 1,09 % dan setelah di esterifikasi adalah 0,41 %. Hasil analisa pada  produksi biodiesel dengan konsentrasi katalis KOH 2,0 % wt pada rasio 1 : 3 (minyak : metanol), suhu konstan 60 °C, dan waktu konstan 60 menit diperoleh hasil biodiesel optimal pada konsentrasi katalis KOH 2% wt dengan rendemen biodiesel 440 ml, densitas 0,870 g/cm3, flash point 122 °C, pour point 15,55 °C, Copper Strip Corrosion 1, volume Temperature Destilasi 90 % sebesar 92 % pada temperatur maksimal 360 oC, air dan sedimen 0,05 % vol.
K KARAKTERISTIK TERMOPLASTIK ELASTOMER DARI KARET ALAM DAN POLIPROPILENA DENGAN PENAMBAHAN CARBON BLACK FILLER
Authors: Setiorini Indah Agus
Published: April 2021

Termoplastik Elastomer (TPE) adalah polimer yang memiliki sifat elastis dan termoplastis yang telah lama dimanfaatkan dalam keperluan sehari-hari. Termoplastik elastomer yang dihasilkan berbahan dasar Karet Alam dan Polipropilena untuk penggunaan industri. Salah satu usaha untuk mengembangkan produk TPE yang telah dihasilkan menjadi bahan yang unggul dan diterima oleh industri otomotif serta industri alat kesehatan maka dilakukan penelitian untuk mempelajari pengaruh carbon black filler  terhadap komposit PP/NR. Metode yang digunakan dalam penelitian ini adalah dengan proses degradasi Polipropilena menggunakan Benzoil Peroksida. Proses degradasi dilakukan pada suhu 160°C dan waktu 10 menit. Variabel campuran komposit PP/NR/CB yaitu (30:70:0)% wt, (30:68:2)% wt, (30:66:4)% wt dan (30:64:6)% wt. Karakteristik yang di uji meliputi sifat fisik dan sifat mekanik. Hasil yang diperoleh menunjukkan bahwa uji sifat fisik komposit berupa densitas semakin menurun seiring bertambahnya kadar filler, sedangkan uji sifat mekanik komposit berupa uji kuat tarik semakin meningkat dengan bertambahnya kadar fiiler dan uji mekanik berupa perpanjangan putus dan ketahanan terhadap minyak semakin menurun seiring bertambahnya kadar filler. Nilai terbaik diperoleh dari komposit dengan perbandingan PP/NR/CB (30:64:6)% wt berupa sifat mekanik tensile strength sebesar 1,79 N/mm2 dan perpanjangan putus terbaik diperoleh dari komposit dengan perbandingan PP/NR/CB (30:70:0)% berat sebesar 277,38%.
P PENINGKATAN KUALITAS AIR ASAM TAMBANG MENGGUNAKAN ZEOLIT DAN BAKTERI SEBAGAI MEDIA ADSORPSI DENGAN METODE SEDIMENTASI SECARA ANAEROB DI PT BUKIT ASAM, Tbk. TANJUNG ENIM, SUMATERA SELATAN
Authors: Sari Dian Kurnia , Kusniawati Euis , Srimardani Renta
Published: April 2021

Air asam tambang merupakan air dengan pH rendah dan memiliki kelarutan logam yang tinggi, pada umumnya air tersebut akan dialirkan kelingkungan sehingga dalam pengolahannya sangat perlu diperhatikan. Tahap penelitian ini meliputi aktivasi zeolit alam dan bakteri (bakteri pereduksi sulfat dan bakteri pengurai limbah), selanjutnya pengaplikasian masing-masing bahan sebagai media adsorpsi terhadap sampel yang dilakukan dengan metode sedimentasi secara anaerob. Hasil penelitian yang dilakukan setelah lima hari treatment menunjukkan adanya peningkatan kualitas air asam tambang, dimana masing-masing treatment memberikan pengaruh berbeda pada setiap parameter uji sampel. Dari hasil penelitian menggunakan lima macam treatment dapat diketahui bahwa treatment menggunakan kombinasi bakteri pereduksi sulfat dan zeolit paling efektif untuk digunakan. Adapun hasilnya, yaitu nilai pH awal 2,98  menjadi 5,72, nilai TSS dari 3 mg/l menjadi 1 mg/l,  konsentrasi logam Fe dari 1,7664 mg/l menjadi 0,1924 mg/l (efisiensi pengendapan sebesar 89,11%), dan kandungan logam Mn dari 9,4931 mg/l menjadi 5,2813 mg/l (efisiensi pengendapan sebesar 44,37%).
P PERANCANGAN REAKTOR KOMPOS
Authors: Wahyuningsi Anggi , Amna Sulton
Published: April 2021

Pemanfaatan limbah organik menjadi kompos merupakan salah satu alternatif yang tepat untuk menanggulangi limbah organik tanpa merusak lingkungan Dalam penelitian ini, kompos dibuat di dalam reaktor kompos. Hasil penelitian menunjukkan keberhasilan reaktor kompos sebagai sarana pembuatan kompos dalam waktu 14 hari. Kompos hari pertama masih berupa adonan awal kompos, hari kedelapan sisa sayuran layu agak kecoklatan masih terdapat sayuran yang berwarna hijau aromanya masih lemah dan hari keempatbelas sisa sayuran melayu keseluruhan, berwarna coklat lebih gelap dari semula dan sudah menyatu (menyerupai tanah) aroma sedikit menusuk semacam bau tapai, sudah menjadi pupuk kompos yang siap dipakai.
B BIOBRIKET DARI CANGKANG KELAPA SEBAGAI ENERGI ALTERNATIF
Authors: Pratiwi Indah
Published: April 2021

Energi merupakan salah satu aspek penting yang dapat berpengaruh pada berbagai sektor kehidupan manusia. Penghematan bahan bakar fosil dapat dicapai dengan mengembangkan energi terbarukan seperti biobriket. Briket arang yang terbuat dari cangkang kelapa merupakan salah bentuk energi terbarukan yang layak dikembangkan di Indonesia. kualitas briket yang dihasilkan sesuai dengan standar yang ada, yaitu kadar air 0,6105 %, kadar Abu 875 kg/m3 dan nyala api 0,397 mgNaOH/g.
A ANALISIS SUMUR DENGAN INFLOW PERFORMANCE RELATIONSHIP METODE VOGEL SERTA EVALUASI TUBING MENGGUNAKAN ANALISIS NODAL PADA SUMUR TCS
Authors: Pranondo Diky , Sobli Tholib Canali
Published: April 2021

Dalam memproduksikan minyak sangat penting dalam menghitung laju alir maksimal dan laju alir optimum. Oleh karena itu perlu dilakukannya analisis sistem nodal. Analisis sistem nodal adalah penggabungan antara Kurva IPR dengan Kurva Outflow, dimana akan didapat laju alir optimum sumur tersebut. Analisis sistem nodal merupakan metode yang dapat digunakan untuk memperbaiki kinerja sumur. Prosedur untuk menentukan kehilangan tekanan yang digunakan adalah korelasi Hagedorn & Brown dengan menentukan kurva outflow menggunakan Pressure Traverse. Dalam hal ini titik nodal diletakan di dasar sumur, maka pembuatan kurva inflow terdiri dari IPR, sedangkan pembuatan Kurva outflow akan menggunakan Pressure Traverse dan dengan Pwf (tekanan di dasar sumur). Untuk laju alir maksimum pada Sumur TCS adalah 2.881,688  BFPD dan laju alir optimum pompa adalah 1.500 BFPD. Sehingga sumur ini sangat cocok menggunakan pompa ESP.
E EVALUASI KAPASITAS POMPA PADA SISTEM PENIRISAN TAMBANG BATUBARA
Authors: Arnando Tomi
Published: April 2021

Pada lokasi tambang PT Baturona Adimulya, kegiatan penambangan dilakukan menggunakan sistem konvesional dengan kombinasi antara alat gali muat (backhoe) dan alat angkut (truck) sehingga seiring dengan kemajuan tambang akan terbentuk cekungan yang besar. Pada musim penghujan air akan menggenangi front penambangan sehingga akan menyebabkan terhentinya kegiatan penambangan batubara. Untuk menanggulangi air yang masuk maka diperlukan pompa dengan jumlah dan kapasitas yang memadai untuk memompakan air. Luas daerah tangkapan hujan pada pit 2 PT Batuona Adimulya sebesar 17,35 Ha. Berdasarkan perhitungan total debit air yang masuk ke sump pit 2 PT Baturona Adimulya sebesar 5.678,88531 m3/hari sedangkan kapasitas tiga unit pompa ebara 150 x 125 FS4LA yang digunakan pada sump pit 2 PT Baturona adimulya yaitu dengan total debit pemompaan sebesar 367,2 m3/hari belum mampu mengendalikan air yang masuk ke tambang. Ketidaksesuaian antara besarnya debit air yang masuk besarnya dengan debit air yang dipompakan merupakan dasar diperlukannya penambahan satu unit pompa dan pengoptimalan pengoperasian pompa yang telah beroperasi. Untuk mengantisipasi terjadinya genangan air yang dapat mengganggu aktifitas penambangan batubara, maka direkomendasikan untuk melakukan penambahan satu unit pompa dengan debit 312,0180 m3/jam.
E EVALUASI PENGGUNAAN ISOLATOR PADA SISTEM PERPINDAHAN PANAS SUATU ALAT HEAT EXCHANGER
Authors: Hamid Abdul , Setiorini Indah Agus
Published: April 2021

Heat exchanger merupakan alat penukar panas yang digunakan sebagai media untuk memindahkan panas dari fluida yang bertemperatur lebih tinggi menuju fluida yang bertemperatur lebih rendah. Dalam aplikasinya alat ini digunakan untuk menaikkan maupun menurunkan temperatur, dan juga mengubah fase fluida, proses tersebut terjadi dengan memanfaatkan proses perpindahan kalor dari fluida bersuhu tinggi menuju fluida bersuhu rendah. Di dalam dunia industri peran dari heat exchanger sangat penting. Hal ini memotivasi penulis untuk mengangkat judul ini menjadi karya ilmiah. Penelitian ini bertujuan untuk mengevaluasi hasil panas yang hilang saat alat penukar panas tersebut menggunakan isolator dan tanpa isolator. Hasil analisa yang diperoleh menunjukkan perbedaan sangat signifikan dimana jumlah panas yang hilang saat heat exchanger tidak menggunakan isolator sangat besar yaitu 655,7 BTU/hr.ft, sedangkan untuk jumlah panas yang hilang saat menggunakan isolator hanya sebesar 261,36 BTU/hr.ft. Dari hasil analisa panas yang hilang tersebut dapat disimpulkan bahwa penggunaan isolator dalam sistem pertukaran panas sangat diperlukan untuk mengurangi jumlah panas yang hilang serta dapat menghemat penggunaan energi, dimana jumlah penghematan panas yang didapat sebesar 394,34 BTU/hr.ft dengan ketebalan isolasi (X) = 3,24 inch.
The “Aesthetics of Existence” in the Last Foucault: Art as a Model of Self-Invention
Authors: Ratiu Dan Eugen
Published: April 2021

This article discusses the “aesthetics of existence” developed by Foucault in the late “ethical” stage of his work, aiming to clarify its complex significance through its relationships with ethics, critique, and, in particular, art as a model of self-invention. The main claims are that aesthetics of existence is a new type of self-formation molded by technologies inspired not only by the ancient ethical self-formation but also by modern art understood as creative self-production; thus, aesthetics of existence is an active form of aesthetic education, in the particular sense of an ontological self-formation. To argue these claims, the author advances a line of analysis alternative to typical readings, which see it as related exclusively to the ancient “art of living” or its modern revival in the Nietzschean project of self-fashioning. The focus is instead on the Baudelairean and Kantian roots of Foucault’s work—modernity as a critical attitude and the transgressive art of the self of the dandy—as keys to understand the reframing by him of the art of living into a modern aesthetics of existence. This appears as a critical-transgressive invention of the self, which could contribute to constituting new subjectivities and alternative norms for the entire social body.
Tenosynovial Giant-Cell Tumor Presenting as Septic Arthritis of the Knee
Authors: Lausé Gregory E. , Baird Michael D. , Krul Kevin P. , Bottoni Craig R.
Published: April 2021

Tenosynovial giant-cell tumor (TGCT) is an intraarticular giant-cell tumor of the synovial tissue and tendon sheaths which often mimics multiple conditions on presentation. This case report describes a previously asymptomatic 67-year-old man with preliminary clinical and laboratory evaluation suggestive of septic arthritis; however, arthroscopy revealed diffuse synovitis, and biopsy confirmed TGCT. To our knowledge, this is the first report of TGCT presenting as septic arthritis in an adult patient. This diagnosis should be considered in evaluation of acute, atraumatic knee pain with associated inflammatory marker elevation.
Perceptions among Antenatal Mother for Birth Preparedness and Complication Readiness: A Hospital Based Survey
Authors: Matwaya Swati , Malik Kamlesh , Kumari Sunita , Jain Shaveta , Rohilla Kusum
Published: April 2021

Introduction: Preparing future mothers for the birth of newborn is an important part of birth preparedness counseling and one of major responsibility of health care provider.

Objectives: The aim of this study was to assess awareness of antenatal mothers for birth preparedness and complication readiness and find association of awareness with socio demographic variables.

Methodology: This descriptive study was conducted using cross sectional research design. Total 200 antenatal mothers were selected using the purposive sampling technique who was attending antenatal OPD at Pt. B. D. Sharma PGIMS, Rohtak, and Haryana, India. Data was collected by using semi structured questionnaire.

Result: The majority of antenatal mothers were belongs to age group of 18-25 years and were secondary level educated. Most of antenatal mothers (54%) had poor knowledge of birth preparedness and complication readiness. Chi square test showed a significant association among awareness level of antenatal mothers with age (0.002*), educational level of self (0.003*) and husband (0.000*), gravida (0.03*), time to reach to health care facility (0.015*) and mode of transportation in emergency (0.005*). Odd ratios showed that antenatal mother who did not done their antenatal register had a 0.81 times more chances for less awareness than registered mothers.

Conclusion: Awareness of antenatal mothers for birth preparedness and complication readiness was poor. There are various hindering factors which must be explored for betterment of maternal outcome and success of birth preparedness and complication readiness programs.
An Epidemiological-Association of Infant and Young Child Feeding Practices In Rural Area of Bareilly District: A Cross Sectional Study
Authors: Agarwal Medhavi , Sinha Akanksha , Katyal Rashmi
Published: April 2021

Introduction: In developing countries, malnutrition is a major public health concern. Infant and young child feeding (IYCF) is a set of well-known, common and scientific recommendations for optimal feeding of newborn and children under two years of age including initiation of breastfeeding within one hour of birth, exclusive breastfeeding for first six months, after which appropriate and safe complementary foods should be given along with continuing breastfeeding up to two years of age and beyond.

AIM: To find out the epidemiological association of IYCF practices in rural area of Bareilly district.

Material and methods: The study was conducted in rural area of Bareilly, Uttar Pradesh from January 2020 to February 2020 in children aged ≤ 1 year.

Results: There were significant associations (p< 0.05) between pre-lacteal feed and age of mother, sex of child, education of father and religion.

Conclusion: There have been considerable developments in the status of IYCF practices in Bareilly. However exclusive breastfeeding was not fully practiced. Hence promotion of IYCF is needed.