bluuebunny/crossref_metadata_2025 huggingface dataset:
Coupled Actuator Line and Finite Element Analysis Tool
Authors: Schmitt Pal , Robinson Desmond
Published: May 2022

Fluid-dynamic loading of many solid bodies can be simulated using geometry resolving computational fluid dynamics methods, where the body's shape is resolved in the mesh. In some cases though slender bodies, like ropes or cables, spars, turbine blades, foils and lattice structures would require prohibitively high cell counts, since the geometrical features to be resolve are much smaller than the overall domain. Such bodies are usually made up of generic cross sections like round, square or standardised technical profiles like the famous NACA digit series for which good parametrisations of reaction forces to incoming flow exist. Actuator line methods apply inflow dependent reaction forces to the fluid domain, thus allowing the computationally efficient simulation of slender bodies and have been used extensively, for example in wind and tidal turbine simulations. Beam elements representing slender bodies are standard building blocks in structural finite element models. Combining actuator line theory with a finite element beam model allows the efficient simulation of flexible structures under fluid loads, like turbine blades or nettings used in fish farms. This paper presents an implementation of such a coupled model in OpenFOAM based on the existing turbineFoam actuator line model. The underlying numerical method is detailed and first test cases are provided.
Tratamiento con antiinflamatorios en paciente de alto riesgo Covid 19, evolución de la enfermedad, presentación de caso clínico
Authors: Sánchez Pérez David , Fernández Álvarez Leticia , Cruz Fernández Elider
Published: May 2022

El 11 de marzo del 2020 la covid 19 fue considerada como una pandemia por la OMS, ese mismo día se confirma el primer caso en Cuba a partir de un turista italiano. En la provincia de las tunas durante el mes de agosto se produce un incremento deliberado del número de casos tensando el sistema de salud, nos referimos a el tratamiento médico de un paciente masculino de 32 años de edad con antecedentes de diabetes mellitus insulinodependiente, obesidad extrema, hipertensión arterial y reacción adversa al tiomersal lo que le impidió utilizar vacunas anticovid, el mismo desarrollo la forma grave de la enfermedad ( síndrome de distrés respiratorio agudo, moderado por bronconeumonía viral asociada a la covid, cetoacidosis diabética ) presento signos clínicos y de laboratorio de mal pronóstico, luego de la terapia con fármacos innovadores específicamente antinflamatorios (jusvinza) desarrollados en cuba para tratamiento de otras afecciones pero con buenos resultados en pacientes con covid 19 gravemente enfermos, presento evolución favorable y alta médica con secuelas leves de la enfermedad.
Development, characterization, and application of an improved online reactive oxygen species analyzer based on the Monitor for AeRosols and Gases in ambient Air (MARGA)
Authors: Wu Jiyan , Yang Chi , Zhang Chunyan , Cao Fang , Wu Aiping , Zhang Yanlin
Published: May 2022

Abstract. Excessive reactive oxygen species (ROS) in the human body is an important
factor leading to diseases. Therefore, research on the content of reactive
oxygen species in atmospheric particles is necessary. In recent years, the
online detection technology of ROS has been developed. However, there are
few technical studies on online detection of ROS based on the dithiothreitol (DTT) method.
Here, to modify the instrument, a DTT experimental module is added that
is protected from light and filled with nitrogen at the end based on the
Monitor for AeRosols and Gases in ambient Air (MARGA). The experimental
study found that the detection limit of the modified instrument is 0.024 nmol min−1. The DTT consumption rate of blank sample (ultrapure water)
is reduced by 44 %, which eliminates the influence of outside air and
light in the experiment. And the accuracy of the online instrument is
determined by comparing the online and offline levels of the samples, which
yielded good consistency (slope 0.97, R2=0.95). It shows that the
performance of the instrument is indeed optimized, the instrument is stable,
and the characterization of ROS is accurate. The instrument not only
realizes online detection conveniently and quickly, but also achieves
the hour-by-hour detection of ROS based on the DTT method. Meanwhile,
reactive oxygen and inorganic ions in atmospheric particles are quantified
using the online technique in the northern suburbs of Nanjing. It is found
that the content of ROS during the day is higher than that at night,
especially after it rains; ROS peaks appear in the two time periods of
08:00–10:00 and 16:00–18:00 (China Standard Time, UTC+8:00; expressed here in local time – LT). In addition, examination of the online ROS,
water-soluble ion (SO42-, NO3-, NH4+,
Na+, Ca2+, K+), BC, and polluting gas (SO2, CO,
O3, NO, NOx) measurements revealed that photo-oxidation and
secondary formation processes could be important sources of aerosol ROS.
This breakthrough enables the quantitative assessment of atmospheric
particulate matter ROS at the diurnal scale, providing an effective tool to
study sources and environmental impacts of ROS.
Long-term incubations provide insight into the mechanisms of anaerobic oxidation of methane in methanogenic lake sediments
Authors: Vigderovich Hanni , Eckert Werner , Elul Michal , Rubin-Blum Maxim , Elvert Marcus , Sivan Orit
Published: May 2022

Abstract. Anaerobic oxidation of methane (AOM) is among the main processes limiting
the release of the greenhouse gas methane from natural environments.
Geochemical profiles and experiments with fresh sediments from Lake Kinneret
(Israel) indicate that iron-coupled AOM (Fe-AOM) sequesters 10 %–15 % of
the methane produced in the methanogenic zone (>20 cm sediment
depth). The oxidation of methane in this environment was shown to be
mediated by a combination of mcr-gene-bearing archaea and pmoA-gene-bearing aerobic
bacterial methanotrophs. Here, we used sediment slurry incubations under
controlled conditions to elucidate the electron acceptors and microorganisms
that are involved in the AOM process over the long term (∼ 18 months). We monitored the process with the addition of 13C-labeled
methane and two stages of incubations: (i) enrichment of the microbial
population involved in AOM and (ii) slurry dilution and manipulations,
including the addition of several electron acceptors (metal oxides, nitrate,
nitrite and humic substances) and inhibitors (2-bromoethanesulfonate,
acetylene and sodium molybdate) of methanogenesis, methanotrophy and sulfate
reduction and sulfur disproportionation. Carbon isotope measurements in the
dissolved inorganic carbon pool suggest the persistence of AOM, consuming
3 %–8 % of the methane produced at a rate of 2.0 ± 0.4 nmol per gram of dry sediment per day. Lipid carbon isotopes and metagenomic analyses
point towards methanogens as the sole microbes performing the AOM process by
reverse methanogenesis. Humic substances and iron oxides, although not sulfate,
manganese, nitrate or nitrite, are the likely electron acceptors used for
this AOM. Our observations support the contrast between methane oxidation
mechanisms in naturally anoxic lake sediments, with potentially co-existing
aerobes and anaerobes, and long-term incubations, wherein anaerobes prevail.
Pliocene evolution of the tropical Atlantic thermocline depth
Authors: van der Weijst Carolien M. H. , Winkelhorst Josse , de Nooijer Wesley , von der Heydt Anna , Reichart Gert-Jan , Sangiorgi Francesca , Sluijs Appy
Published: May 2022

Abstract. It has been hypothesized that global temperature trends are tightly linked
to tropical thermocline depth, and that thermocline shoaling played a
crucial role in the intensification of late Pliocene Northern Hemisphere
glaciation. The Pliocene thermocline evolution in the Pacific Ocean is well
documented and supports this hypothesis, but thermocline records from the
tropical Atlantic Ocean are limited. We present new planktonic foraminiferal
Mg/Ca, δ18O, and δ13C records from the late Pliocene interval at Ocean Drilling Program Site 959 in the Eastern
Equatorial Atlantic (EEA), which we use to reconstruct ocean temperatures
and relative changes in salinity and thermocline depth. Data were generated
using surface-dwelling Globigerinoides ruber and subsurface-dwelling Neogloboquadrina dutertrei. Reduced gradients between
the surface and subsurface records indicate deepening of the EEA thermocline
at the end of the mid-Piacenzian Warm Period (mPWP; ∼ 3.3–3.0 Ma). We connect our late Pliocene records to previously published early
Pliocene δ18O data from Site 959 and compare these to the Site 1000 in the Caribbean Sea. Over the course of the Pliocene, thermocline changes in the EEA and Caribbean Sea follow similar patterns, with prominent
step-wise thermocline deepening between ∼ 5.5 and 4.0 Ma and
gradual shoaling up to the mPWP, followed by minor deepening at the end of
the mPWP. The tropical thermocline depth evolution of the tropical Atlantic
differs from the Pacific, which is characterized by gradual basin-wide
shoaling across the Pliocene. These results potentially challenge the
hypothesized link between tropical thermocline depth and global climate. The
mechanisms behind the periodically divergent Pacific and Atlantic
thermocline movements remain speculative. We suggest that they are related
to basin geometry and heterogenous temperature evolutions in regions from
where thermocline waters are sourced. A positive feedback loop between
source region temperature and tropical cyclone activity may have amplified
tropical thermocline adjustments.
Development of East Asia Regional Reanalysis based on advanced hybrid gain data assimilation method and evaluation with E3DVAR, ERA-5, and ERA-Interim reanalysis
Authors: Yang Eun-Gyeong , Kim Hyun Mee , Kim Dae-Hui
Published: May 2022

Abstract. The East Asia Regional Reanalysis (EARR) system is developed based on the
advanced hybrid gain data assimilation method (AdvHG) using the Weather Research
and Forecasting (WRF) model and conventional observations. Based on EARR,
the high-resolution regional reanalysis and reforecast fields are produced
with 12 km horizontal resolution over East Asia for 2010–2019. The newly
proposed AdvHG is based on the hybrid gain approach, weighting two different
analyses for an optimal analysis. The AdvHG differs from the hybrid
gain in that (1) E3DVAR is used instead of EnKF, (2) 6 h forecast of ERA5 is
used to be more consistent with WRF, and (3) the preexisting,
state-of-the-art reanalysis is used. Thus, the AdvHG can be regarded as an
efficient approach for generating regional reanalysis datasets thanks to cost
savings as well as the use of the state-of-the-art reanalysis. The upper-air
variables of EARR are verified with those of ERA5 for January and July 2017
and the 10-year period 2010–2019. For upper-air variables, ERA5
outperforms EARR over 2 years, whereas EARR outperforms (shows comparable
performance to) ERA-I and E3DVAR for January 2017 (July 2017). EARR represents precipitation better than ERA5 for January and July 2017.
Therefore, although the uncertainties of upper-air variables of EARR need to
be considered when analyzing them, the precipitation of EARR is more
accurate than that of ERA5 for both seasons. The EARR data presented
here can be downloaded from https://doi.org/10.7910/DVN/7P8MZT
(Yang and Kim, 2021b) for data on pressure levels and https://doi.org/10.7910/DVN/Q07VRC (Yang and Kim, 2021c) for precipitation.
Break in precipitation – temperature scaling over India predominantly explained by cloud-driven cooling
Authors: Ghausi Sarosh Alam , Ghosh Subimal , Kleidon Axel
Published: May 2022

Abstract. Climate models predict an intensification of precipitation extremes as a result of a warmer and moister atmosphere at the rate of 7 %/K. However, observations in tropical regions show contrastingly negative precipitation-temperature scaling at temperatures above 23°–25 °C. We use observations from India and show that this negative scaling can be explained by the radiative effects of clouds on surface temperatures. Cloud radiative cooling during precipitation events make observed temperatures co-vary with precipitation, with wetter periods and heavier precipitation having a stronger cooling effect. We remove this confounding effect of clouds from temperatures using a surface energy balance approach constrained by thermodynamics. We then find a diametric change in precipitation scaling with rates becoming positive and coming closer to the Clausius – Clapeyron scaling rate (7 %/K). Our findings imply that the intensification of precipitation extremes with warmer temperatures expected with global warming is consistent with observations from tropical regions when the radiative effect of clouds on surface temperatures and the resulting covariation with precipitation is accounted for.
Weakening and warming of the European Slope Current since the late 1990s attributed to basin-scale density changes
Authors: Clark Matthew , Marsh Robert , Harle James
Published: May 2022

Abstract. Oceanic influences on shelf seas are mediated by flow along and across continental slopes, with consequences for regional hydrography and
ecosystems. Here we present evidence for the variable North Atlantic influence on European shelf seas over the last 4 decades using ocean
analysis and reanalysis products, as well as an eddy-resolving ocean model hindcast. To first order, flows oriented along isobaths at the continental slope
are related to the poleward increase in density in the adjacent deep ocean that supports a geostrophic inflow towards the slope. In the North
Atlantic, this density gradient and associated inflow have undergone substantial, sometimes abrupt, changes in recent decades. Inflow in the range
10–15 Sv is identified with eastward transport in temperature classes at 30∘ W in the latitude range
45–60∘ N. Associated with major subpolar warming around 1997, a cool and fresh branch of the Atlantic inflow was substantially reduced,
while a warm and more saline inflow branch strengthened, with respective changes of the order of 5 Sv. Total inflow fell from
∼ 15 Sv pre-1997 to ∼ 10 Sv post-1997. In the model hindcast, particle tracking is used to trace the origins of poleward
flows along the continental slope to the west of Ireland and Scotland before and after 1997. Backtracking particles up to 4 years, a range of
subtropical and subpolar pathways is identified from a statistical perspective. In broad terms, cold, fresh waters of subpolar provenance were
replaced by warm, saline waters of subtropical provenance. These changes have major implications for the downstream shelf regions that are strongly
influenced by Atlantic inflow, in particular the northern North Sea, where “subtropicalization” of ecosystems has already been observed since the
late 1990s.
Designing recommender systems to depolarize
Authors: Stray Jonathan
Published: May 2022

Polarization is implicated in the erosion of democracy and the progression to violence, which makes the polarization properties of large algorithmic content selection systems (recommender systems) a matter of concern for peace and security. While algorithm-driven social media do not seem to be a primary driver of polarization at the country level, they could be a useful intervention point in polarized societies. This paper examines algorithmic depolarization interventions aimed at transforming conflict: not suppressing or eliminating conflict, but making it more constructive. Algorithmic intervention is considered at three stages: what content is available (moderation), how content is selected and personalized (ranking), and content presentation and controls (user interface). Empirical studies of online conflict suggest that not only could the exposure-diversity intervention proposed as an antidote to ‘filter bubbles’ be improved: under some conditions, it can even worsen polarization. Using civility metrics in conjunction with diversity in content selection may be more effective. However, diversity-based interventions have not been tested at scale, and may not work in the diverse and dynamic contexts of real platforms. Instead, intervening in platform polarization dynamics will likely require continuous monitoring of polarization metrics, such as the widely used ‘feeling thermometer’. These metrics can be used to evaluate product features, and can potentially be engineered as algorithmic objectives. While using any metric as an optimization target may have harmful consequences, to prevent optimization processes from creating conflict as a side effect it may prove necessary to include polarization measures in the objective function of recommender algorithms.
Building social capital to counter polarization and extremism? A comparative analysis of tech platforms' official blog posts
Authors: Watkin Amy-Louise , Conway Maura
Published: May 2022

This research employs the concept of social capital to compare the efforts that a range of tech companies have claimed to take to counter polarization and extremism and build resilience on their platforms. The dataset on which our analysis is based is made-up of a purposive sample of official blog posts from three ‘older’ (i.e., Facebook, Twitter, YouTube) and three ‘newer’ (i.e., TikTok, Discord, and Telegram) technology platforms. The selected posts focused on companies’ efforts to make their platform safer, build community resilience, counter violent extremism and/or polarization, or mentioned related topics such as countering hate organizations, radicalization, or misinformation. Revealed were seven themes incorporating, to a greater or lesser extent, the three main types of social capital (i.e., bonding, bridging and linking). These themes were granting user powers, strengthening existing communities, provision of information and education, building community, enhancing user rights, keeping users safe, and building trust and relationships with users. Analysis of these showed that while creation of all three types of social capital was apparent, similar to previous studies, bridging capital dominated here too; while there were some discrepancies between social capital generating activities and their framings on ‘older’ versus ‘newer’ platforms, other factors, including platform size and company values are likely to be equally or more important; and, finally, that companies attempts at generating online social capital can have negative as well as positive impacts with regard to countering polarization and extremism.
MOVIMENTO NEGRO NO BRASIL PÓS DÉCADA DE 1970: AÇÃO POLÍTICA E EDUCAÇÃO ANTIRRACISTA
Authors: Trindade Josiney da Silva , Miléo Irlanda do Socorro de Oliveira
Published: May 2022

Este estudo tem como objetivo analisar como o Movimento Negro (MN) brasileiro, pós década de 1970, contribuiu na luta pela garantia do direito à educação da população negra brasileira. Para isso, realizamos uma pesquisa bibliográfica, com o emprego de revisão de literatura com base nos autores: Domingues (2007; 2008), Gomes (2012), Gonçalves e Silva (2000), Passos e Nogueira (2014), Pereira (2010), Alberto (2017), entre outros. Os resultados apontam que, desde sua reorganização em 1978, o MN atuou incisivamente para que o direito à educação da população negra fosse garantido, resultando em importantes conquistas, tanto no acesso como na permanência em instituições de ensino, em particular, naquelas de nível superior. Na atualidade, o refluxo das políticas de reparação e promoção da igualdade racial tem sido um grande desafio a ser superado pelo MN, requerendo sólidas estratégias de resistência.   
PALAVRAS-CHAVE: Movimento Negro. Racismo. Antirracismo. Educação.
ENTRE RETAS E CURVAS DO LEGADO FREIRIANO: UM ESTUDO A PARTIR DA RESISTENTE OBRA CENTENÁRIA DE PAULO FREIRE
Authors: Souza Valdirene Eliane Bailon de , Mello Rita Márcia Andrade Vaz de
Published: May 2022

Este artigo enfoca, no campo científico, uma reflexão sobre a práxis educativa centenária do educador Paulo Freire. Para tanto, como abordagem metodológica, emprega-se uma análise bibliográfica, de cunho qualitativo, ao revisar os aspectos marcantes do trabalho, a fim de evidenciar a literatura de clássicos de Paulo Freire e de outros autores que pesquisaram a sua vasta obra. Conforme contexto histórico da educação, destaca-se a Pedagogia Freiriana, até então repugnada pela classe conservadora, por não corresponder aos interesses dominantes, mas de suma importância enquanto prática alinhada à autonomia, ao diálogo, e ao relacionamento humanitário. Ademais, comemorar o centenário desse grande educador em meio a uma pandemia instaurada é tentar acreditar mais no ser humano, na amorosidade e numa sociedade mais dialógica para todos e todas, apesar das retas e curvas interpostas, sobretudo no caminho educacional brasileiro. 
PALAVRAS-CHAVE: Paulo Freire. Centenário. Educação. Pedagogia Freiriana.
TRAJETÓRIA EDUCACIONAL DE UMA JOVEM MIGRANTE: DESLOCAMENTOS ENTRE CAMPO, CIDADE E CIBERESPAÇO
Authors: Miranda Fernanda Pimentel Faria de , Clímaco Júlia Campos
Published: May 2022

Esse artigo teve por objetivo analisar a produção de significados em transições campo-cidade de uma jovem que migrou para cursar o ensino médio técnico. Suas experiências com a alteridade em espaços urbanos e rurais foi marcada por rupturas, ambivalências e transformações. Ao estudo de caso de metodologia qualitativa com duas entrevistas narrativas, história de vida e episódica, foi aplicada análise dialógico-temática. Os resultados indicaram que os deslocamentos cotidianos ampliaram o posicionamento de estudante para aprendiz, excedendo contextos formais de ensino na atuação política dentro e fora da escola. Concluiu-se que os significados produzidos no ir e vir apontam caminhos para enfrentar as incertezas e desigualdades sociais do presente, orientando expectativas futuras de continuidade da formação no ensino superior.
 PALAVRAS-CHAVE: Migração Rural-Urbana. Juventude. Ensino Médio Profissionalizante. Posicionamentos.
USO DAS TECNOLOGIAS DIGITAIS EM ATIVIDADES EXTENSIONISTAS NUM CONTEXTO PANDÊMICO DO LESTE FLUMINENSE
Authors: Fernandes Alan Navarro , Oliveira Adam Alfred de , Lopes Lucas Salgueiro , Ferreira Arthur Vianna
Published: May 2022

Este artigo tem como objetivo discutir os processos de utilização das Tecnologias Digitais de Informação e Comunicação (TDIC’s) em atividades extensionistas no contexto pandêmico. Estima-se notar como tais práticas, idealizadas para serem executadas presencialmente, passaram por um processo consensuado na educação social como “alomorfia socioeducativa” (AZEVEDO; CORREIA, 2020). Ao fim, utiliza-se como estudo de caso uma prática educativa extensionista: a “Livestudos”, organizada pelo Grupo de Estudos, Pesquisa e Extensão Fora da Sala de Aula da Faculdade de Formação de Professores da Universidade do Estado do Rio de Janeiro (FFP/UERJ). Dessa forma, tem-se como resultado o melhor entendimento da forma em que o uso das TDIC’s, utilizadas como ferramentas para a educação social, pode ser relevante para atingir as necessidades educacionais dos indivíduos em situação pandêmica de “isolamento social” no contexto socioeducacional do Leste Fluminense.
PALAVRAS-CHAVE: Tecnologias Digitais de Informação e Comunicação. Extensão Universitária. Educação Social. Contexto Pandêmico.
MOVIMENTO SANTA CATARINA PELA EDUCAÇÃO: IMPLICAÇÕES PARA O PROCESSO FORMATIVO
Authors: Spricigo Fabricio , Filho Lourival José Martins
Published: May 2022

O presente estudo resulta de pesquisa de doutorado desenvolvida na área de políticas educacionais. Como objetivo, busca caracterizar histórica e geograficamente a configuração do Movimento Santa Catarina pela Educação (MSCE), liderado pela Federação das Indústrias do Estado de Santa Catarina (FIESC). A investigação, de cunho documental e bibliográfico, tem enfoque qualitativo com fundamento na perspectiva dialética. Utiliza como procedimentos a seleção e análise de materiais produzidos (relatórios, revistas, livros e apresentações em eventos) durante a primeira década do MSCE. As particularidades do fenômeno de estudo refletem a reconfiguração levada a termo no campo da política educacional catarinense e as implicações para o processo formativo. Considerando esse cenário, o MSCE é propositivo no tocante à escolarização. Suas ações estão costuradas estrategicamente em todo o território catarinense por meio de parcerias com redes públicas de ensino. A educação, nesse sentido, torna-se mercadoria de grande valor para alavancar a produtividade e a competição mercantil, sendo usada como mecanismo para fomentar os interesses do mercado empresarial.
PALAVRAS-CHAVE: Educação. Santa Catarina. Mercado. FIESC.
“RECICLANDO SONHOS”: UMA TURMA DE EJA PARA OS CATADORES E CATADORAS DE MATERIAIS RECICLADOS
Authors: Reibnitz Cecília de Sousa
Published: May 2022

O presente artigo propõe analisar parte da experiência da criação de duas turmas de Educação de Jovens e Adultos (EJA) dentro da Associação de Coletores de Materiais Recicláveis (ACMR), situada em Florianópolis/SC, durante os anos de 2018 e 2019. A autora foi uma das professoras a atuar no local e, além de relatos pessoais, a pesquisa se valeu da tese de Gabriela Couto (2020), principal trabalho acadêmico a respeito da instituição, que também apresenta depoimentos de coletores-estudantes sobre as aulas. Relaciona-se aqui o contexto específico da ACMR com características socioeconômicas dos profissionais da coleta de materiais recicláveis no país, de modo a conhecer algumas particularidades dessa profissão tão estigmatizada, bem como algumas de suas formas de organização, como associações e movimentos sociais. Procura-se assim refletir sobre a importância da modalidade de EJA para a categoria dos coletores e, de modo específico, para os trabalhadores e trabalhadoras da ACMR.
PALAVRAS-CHAVE: Educação de Jovens e Adultos. Catadores de Materiais Reciclados. Associação de Coletores de Materiais Recicláveis.
PENGARUH DISIPLIN DAN BEBAN KERJA TERHADAP KINERJA KARYAWAN PADA CV SISI JATI BENING DI GRESIK
Authors: Monica Sindi Arista
Published: May 2022

Penelitian ini bertujuan untuk menguji dan menganalisis pengaruh disiplin kerja dan beban kerja terhadap kinerja karyawan CV Sisi Jati Bening baik secara parsial maupun secara simultan. Jenis penelitian yang digunakan dalam penelitian ini adalah eksplanatory dengan menggunakan pendekatan kuantitatif. Teknik yang digunakan dalam pengambilan sampel yaitu dengan metode probability sampling, didapatkan sebanyak 55 responden.

Jenis data yang digunakan adalah data primer. Analisis data yang dilakukan dengan menggunakan statistik dibantu dengan alat bantu SPSS. Berdasarkan hasil analisis data, secara parsial menunjukkan bahwa disiplin kerja berpengaruh positif dan signifikan terhadap kinerja karyawan. Sedangkan beban kerja berpengaruh tetapi tidak signifikan terhadap kinerja karyawan. Dan secara simultan diperoleh hasil bahwa disiplin kerja dan beban kerja berpengaruh secara signifikan terhadap kinerja karyawan.
New data on the stratigraphy of the Middle Jurassic siliciclastic rocks from the West Balkan Mountains (West Bulgaria)
Authors: Metodiev Lubomir , Koleva-Rekalova Elena , Petrova Silviya , Dochev Docho , Dimowa Louiza
Published: May 2022

The present study is a contribution to the lithostratigraphy of Middle Jurassic strata in the area of the Zimevitsa Plateau (West Balkan Mts, West Bulgaria). Based on its lithological and regional properties, the Dobravitsa Member is distinguished from the surrounding rocks of the Etropole Formation. The new member consists of alternating shales, siltstones and fine-grained sandstones. It also contains abundant siderite and calcite concretions, which are distributed in discrete stratigraphic horizons in both the mudrocks and coarser lithologies. Fossils are extremely rare. Poorly preserved ammonites and belemnites are found only. Based on several ammonite finds, the Dobravitsa Member of the Etropole Formation is assigned to a narrow stratigraphic interval of the lower Bajocian (unlimited, probably lower part of the Witchellia laeviuscula Zone). Although it has restricted lateral distribution, which is exclusively confined to its type-area, the Dobravitsa Member has a proper place in the formal Bulgarian Jurassic lithostratigraphic scheme, as it represents a discernible atypical development of the Etropole Formation in the West Balkan Mts region. Another emphasis of this study is laid on concretions from the Etropole Formation. Besides siderite and calcite concretions, a few examples of iron oxyhydroxide concretions, from localities outside the Zimevitsa Plateau area, are also described. The latter are also an atypical component of the Etropole Formation, which deserves a further special study and systematization, as it implies unknown history of this lithofacies, in both depositional and diagenetic terms.
Ethics as part of police management
Authors: Huschbeck Torsten , Horres Christian , Markovič Peter
Published: May 2022

This article examines which ethical features can be found in the police's more economically oriented management tactics, as well as the extent to which ethical considerations are factored into police decision-making processes. In this approach, the article builds on the author’s previous work, which focused on a police resource's risk assessment. The goal of this research is to answer the scientific question of whether or not harmful police trends could have been detected sooner. In this context, it's worth noting that the police force and its members are under a lot of moral and ethical criticism from a population that's becoming increasingly critical across borders. The author concludes that every police officer's moral compass can really provide a foundation for police activity, based on a literature study and a secondary quantitative content analysis. It is demonstrated that, in terms of duty ethics, ethical features are heavily reliant on role models. However, such role models are not always available. Supervisors, on the other hand, do not always live up to their responsibility as role models. Professional ethics are being implemented and strengthened in the training of young police recruits, which is positive. It is intended that ethical considerations would become more prevalent in the police force.
Autoimmune Dermatitis associated with Endogenous Progesterone Hypersensitivity: a case report
Authors: Nogueira Rodrigues Andrea Railla , Matos Oliveira Paula
Published: May 2022

Progesterone hypersensitivity (HP), also known as autoimmune progesterone dermatitis, is a rare condition with dermatological or systemic manifestations associated with progestogen, whether endogenous or synthetic. Its symptoms appear in the luteal phase and precede the menstrual flow a few days and may extend after the end of menstruation. The pathophysiology is still uncertain, and some hypotheses have been published in an attempt to explain the cases associated with both endogenous and synthetic progesterone.  The diagnosis is clinical, but some tests are described in an attempt to help confirm the diagnosis. Hormonal contraceptives, antihistamines, corticosteroids and even bilateral oophorectomy are therapeutic options described. This paper describes the case report of a 28-year-old woman, nulliparous, with symptoms of macules and papules that started three days before the menstrual flow, without external triggering factor. After using a combined oral contraceptive and antihistamine, she progressed with significant clinical improvement. In view of these points and due to the scarcity of evidence on hypersensitivity to progesterone, it is essential to produce more studies on the clinical presentation, triggering factors and therapeutic possibilities for a better diagnostic elucidation and treatments of these patients.
The Challenge of Multiloculated Pediatric Hydrocephalus: a case report
Authors: Moreira Ferreira Lara , Moreira Santiago Joaquim Miguel , Soares Rodrigues Davi , Gomes Silva Lucas Vinicius , Freitas Santana Marília , Aspilicueta Pinto Filho Washington , Barros Juca Carlos Eduardo , Carvalho de Brito de Souza Liane , Alves Gomes Josenília Maria
Published: May 2022

Hydrocephalus is an unbalanced condition between the production and absorption of cerebrospinal fluid (CSF). We reported a child with multiloculated hydrocephalus who developed several complications. Our team was challenged to manage his issues during five years of follow up. We performed multicystic cerebral shunts despite the neuroendoscopic evidence.
Deep Cervical Abscess Associated with Internal Carotid Pseudoaneurysm and Acute Ischemic Stroke: a case report
Authors: Dos Santos Ferreira Ingrid , Knorst Kepler Carolina , Travi Dornelles Nicholas , Schüler Nin Carlos
Published: May 2022

The formation of an internal carotid pseudoaneurysm is a rare complication of upper airway infections, mainly after the advent of antibiotic therapy. Despite the low incidence of this condition, it is an extremely serious and potentially lethal scenario; therefore, the rapid identification and establishment of an effective therapy is vital to patient. Normally, the proposed treatment is an immediate open ligature of the involved artery. Currently, new endovascular techniques have been used in the treatment of this pathology. Unfortunately, even after the establishment of adequate measures in order to contain hemorrhages, many cases evolve to cerebral ischemia, besides other complications. The present study reports the case of a four-year-old boy who presented with a right parapharyngeal abscess, which developed into an internal carotid pseudoaneurysm, treated with embolization. Regardless of the treatment, the patient had an unfavorable evolution, in which he had disease progression with fistula, hemorrhage and consequent acute ischemic stroke (AIS).
Concealed Automated Trash Bin with Shredder for Solid Wastes
Authors: Villamer Edison A. , Agrade Marvin T. , Delustre Marlon Jay , Embestro Renato , Mamano Via Claire , Pante Christopher , Oliveros Rhoderick , Cabaltera Eddie , Issac Victor Solito
Published: May 2022

The common difficulty in populated developing countries like the Philippines is inappropriate waste management practices. The improper use of waste bins and waste segregation are some of those. One of the major causes is the irresponsibility of the people. As expected, the consequences are environmental and health risks experienced by people. The countermeasure to minimize these risks is the solution proposed by people, particularly the development of an automated segregation system. The waste bins are designed to be concealed to conserve space, slow down the decomposition rate and reduce the foul odor of waste. The design is fully automated to minimize direct contact with the waste. The classifying section is capable of collecting and segregating waste using a gripper, servo motors, ultrasonic, capacitive, and photoelectric sensors. To conserve power, the segregated waste is held in a storage bin prior to shredding. Shredded waste is routed to their respective transport bins for collection after shredding.The ultrasonic sensors provide data about the capacity of the transport bins and allow the GSM module to send an SMS informing the concerned authority regarding the bins’ status. These messages facilitate easier waste collection. Two tests were conducted to determine the performance of the prototype: response-time and garbage level detection tests. The result shows that the prototype performed well and can successfully achieve the desired function. It took 23.745 and 2.711 seconds to collect and segregate the waste, respectively. Likewise, the monitoring system successfully expedited the checking of the waste bins. However, it is recommended to include quality of output and SMS delay tests. These tests can improve the overall performance of the prototype.
Concrete compressive strength of mix proportioning cockle shell, glass powder and epoxy resin under hot water curing condition through response surface methodology
Authors: Sugito Sugito , Alisjahbana Sofia W. , Riyanto Hery
Published: May 2022

Nowadays, the significant demand for concrete has become a problem in concrete using aggregate from waste. Using standard concrete is recommended to reduce the breakdown of buildings. Unfortunately, standard materials used to produce previous concrete are not entirely environmentally friendly. As a result, many researchers have committed their awareness to identifying eco-friendlier substitutions in manufacturing concrete substitution aggregate from waste. In this respect, this paper discussed the proposed efficient procedure to indicate the compressive strength from mixed proportioning cockle shell, glass powder, and epoxy resin as concrete under hot water curing conditions (60°C, 4 hr) using response surface methodology. The experimental design used in this research uses a response surface methodology. There are three aggregates to be investigated, namely cockle shell powder, glass powder and epoxy resin under hot water curing condition (60°C, 4 hr). Under hot water curing conditions, this research discovered that adding 4.0% cockle shell powder and 10.0 % glass powder increased the compressive strength to 104.68 MPa. On the other hand, 4.0% cockle shell powder, 10.0% glass powder and 2% epoxy resin under hot water curing conditions improved the compressive strength to 115.70 MPa. It was therefore inferred that the use of both cockle shell powder and glass powder to produce cleaner and compressive strength concrete is applicable, both mechanically and environmentally.
Solar dome integration as technical new in water desalination: case study Morocco region Rabat-Kenitra
Authors: Lachhab Saad Eddin , Bliya A. , Ibrahmi E. Al , Dlim L.
Published: May 2022

This paper presents a study of the solar dome system that is considered as one of the most important economical solutions in the domain of drinking water production. For this, a mathematical model was built from equations describing the optical and thermal phenomenon involved in this process. The concentration of radiation and the heat flow were simulated in each 0.1m² of the dome using the metrological parameters of Morocco’s region Rabat-Salé-Kenitra. The results can follow the evolution of the temperature of glass, salt water, point dew temperature, saturation pressure and evaporation rate as well as humidity reached in August month for the study zone. For this, a numerical implementation on Matlab and Ansys are compared with measurements for the same parameters shown in the domain study of single slope. The comparison results are more significant by the rise of the ray concentration rate reached to 99% if the inclination angle of the heliostat is divided into three intervals. The saturation pressure increases as long as with the rate of evaporation and the humidity that produces ordinary daily fresh water.
Prediction of flow stress characteristics of P92 steel using a simple physically-based constitutive modelling
Authors: Obiko J. , Chown L. , Whitefield D.
Published: May 2022

This study reports the flow stress behavior of three P92 steels with different compositions. Uniaxial compression tests were conducted in the deformation temperature range of 575 °C to 650 °C and strain rate range of 0.001-0.5 s-1 using a Gleeble® 3500 thermo-mechanical simulator. A simple physically-based constitutive model was used to analyse the effects of deformation conditions (temperature and strain rate) on the metal flow stress behavior during the deformation process. The method accounts for the temperature dependence of Young’s modulus and the lattice self-diffusion coefficient of Fe in the ferrite. Constitutive equations describing the flow stress behavior of the three P92 steels were developed. From the results, the stress exponent n of 26.13(steel A), 21.61(steel B) and 27.55 (steel C) were obtained using the self-diffusion activation energy in the physically-based constitutive equation. From the results, the three steels had variation in the stress exponent values, which was attributed to differences in elemental content, such as chromium and tungsten. The developed constitutive equations were verified using statistical parameters: Pearson’s correlation coefficient (R) and average absolute relative errors (AARE). Statistical analysis showed that the three steels had the same R of 0.98, while AARE was: 1.68 (steel A), 1.72 (steel B), and 1.82 (steel C). The constitutive equations developed showed a good correlation between the experimental and predicted flow stress data. Hence, the method is applicable in describing flow stress behavior in the metalworking process in the industry.
Integrated scheduling of machines and automated guided vehicles (AGVs) in flexible job shop environment using genetic algorithms
Authors: Chaudhry Imran Ali , Rafique Amer Farhan , Elbadawi Isam A-Q , Aichouni Mohamed , Usman Muhammed , Boujelbene Mohamed , Boudjemline Attia
Published: May 2022

In this research integrated scheduling of machines and automated guided vehicles (AGVs) in a flexible job shop environment is addressed. The scheduling literature generally ignores the transportation of jobs between the machines and when considered typically assumes an unlimited number of AGVs. In order to comply with Industry 4.0 requirements, today’s manufacturing systems make use of AGVs to transport jobs between the machines. The addressed problem involves simultaneous assignment of operations to one of the alternative machines, determining the sequence of operations on each machine and assignment of transportation operations between machines to an available AGV. We present a Microsoft Excel® spreadsheet-based solution for the problem. Evolver®, a proprietary GA is used for the optimization. The GA routine works as an add-in to the spreadsheet environment. The flexible job shop model is developed in Microsoft Excel® spreadsheet. The assignment of AGV is independent of the GA routine and is done by the spreadsheet model while the GA finds the assignment of operations to the machines and then finds the best sequence of operations on each machine. Computational analysis demonstrates that the proposed method can effectively and efficiently solve a wide range of problems with reasonable accuracy. Benchmark problems from the literature are used to highlight the effectiveness and efficiency of the proposed implementation. In most of the cases the proposed implementation can find the best-known solution found by previous studies.
Fabrication runtime decision for a hybrid system incorporating probabilistic breakdowns, scrap, and overtime
Authors: Chiu Yuan-Shyi Peter , Wang Yunsen , Yeh Tsu-Ming , Chiu Singa Wang
Published: May 2022

Manufacturers today need to optimize their fabrication runtime decision by meeting short customer order due dates externally and managing the potentially unreliable machines and manufacturing processes internally. Outsourcing and overtime are commonly utilized strategies to expedite fabricating time. Additionally, detailed analyses and necessary actions on inevitable product defects (i.e., removal of scraps) and equipment breakdowns (such as machine repairing) are prerequisites to fabrication runtime planning. Motivated by assisting today’s manufacturers decide the best batch runtime plan under the situations mentioned above, this study applies mathematical modeling to a hybrid fabrication problem that incorporates partial overtime and outsourcing, inevitable product defects, and a Poisson-distributed breakdown. We develop a model to accurately represent the problem’s characteristics. Formulations and detailed model analyses allow us to find the cost function first. Differential equations and algorithms help us confirm the gain function’s convexity and find the best runtime decision. Lastly, we use numerical illustrations to show our study’s applicability by revealing in-depth crucial managerial information of the studied problem.
Los ferrocarriles portátiles Decauville y la modernización de la hacienda mexicana: El caso de la producción y transporte de henequén y pulque, c. 1880-1907
Authors: Rangel Vargas Juana Maria
Published: May 2022

Este artículo examina la introducción del ferrocarril agrícola portátil francés Decauville, como parte de la modernización tecnológica en haciendas mexicanas productoras de henequén y pulque. Previas investigaciones se han centrado en los resultados de las actividades productivas, sin examinar esta tecnología que deriva de una innovación local al sistema del ferrocarril, cuya simplicidad y costo accesible fueron determinantes para su adopción en el sector agrícola. La pregunta que nos planteamos es: ¿qué características de esta tecnología contribuyeron a reforzar la especialización productiva en el henequén y el pulque? El trabajo propone que su creativa apropiación y adaptación local, le otorgó significativas ventajas a la cadena de producción-distribución en ambos cultivos. En la investigación se han empleado fuentes diversas, tales como memorias e informes gubernamentales, periódicos, anuarios estadísticos, boletines y catálogos de venta de este equipo ferroviario.
Cosmopolitas contra orientales: conflictos por tierras para colonización en el departamento de Colonia, Uruguay (1874-1876)
Authors: Duffau Soto Nicolás
Published: May 2022

El artículo toma como referencia el enfrentamiento que mantuvieron los vecinos de Rincón de la Virgen, en el departamento de Colonia (Uruguay), con la empresa colonizadora La Cosmopolita, que adquirió terrenos estatales en 1874, provocando una reacción local que finalizó en un conflicto con intervención militar y policial. Una vez aplacado el enfrentamiento, la empresa tuvo que responder a las reclamaciones realizadas por los nuevos colonos. A partir del estudio de este episodio breve, buscaremos evidenciar algunos de los principales motivos de tensión en las disputas por las tierras que caracterizaron al Uruguay en la segunda mitad del siglo XIX y que repercutieron en el proceso de colonización agrícola, que se estructuró en base a tierras públicas baratas y mano de obra inmigrante.
Experiências em testes e medidas do exercício físico no contexto da saúde
Authors:   André Pereira dos Santos,   Dalmo Roberto Lopes Machado
Published: May 2022

A escrita deste livro é mais um exemplo do brilhante trabalho em equipe do Grupo de Estudo e Pesquisa em Antropometria, Treinamento e Esporte da Escola de Educação Física e Esporte de Ribeirão Preto da Universidade de São Paulo (GEPEATE/EEFERP-USP). O comprometimento, dedicação e seriedade dos integrantes do grupo refletem-se na qualidade dos cinco capítulos que compõem este livro. O capítulo 1, intitulado: “composição corporal ou transmorfia do ser: da adolescência à velhice” apresenta importantes resultados e reflexões que destacam a necessidade de se compreender a tipicidade de cada fase da vida, como ação fundamental para todos os profissionais que atuam com este ser, em permanente transmorfia corporal. O capítulo 2, intitulado: “avaliação da mobilidade em pessoas com esclerose múltipla” lista e descreve importantes testes de performance funcional recomendados para pessoas com esclerose múltipla, que são utilizados para monitoramento da progressão e nível de incapacidade da doença. O capítulo 3, intitulado: “identificação da sarcopenia mediante antropometria e testes funcionais simples” apresenta alternativas viáveis para identificar sarcopenia na atividade cotidiana dos profissionais da saúde. O capítulo 4, intitulado: “uma nova abordagem na determinação do gasto energético de repouso” apresenta uma reflexão sobre novas abordagens metodológicas para medir e estimar o gasto energético de repouso, observada a especificidade dos compartimentos corporais e diferenças interpessoais. Por fim, o capítulo 5, intitulado: “respostas agudas ao treinamento de força com e sem restrição de fluxo sanguíneo: segurança dos parâmetros hemodinâmicos em pessoas vivendo com HIV/Aids” apresenta resultados de um ensaio clínico randomizado que comparou as respostas hemodinâmicas agudas entre o treinamento de força tradicional e o treinamento de força com restrição do fluxo sanguíneo em pessoas vivendo com HIV/Aids. Desejamos que a leitura deste livro seja fonte de conhecimento e o “gatilho” para inquietações científicas, que guie o desenvolvimento de projetos de pesquisa para o avanço nesta área de conhecimento.