bluuebunny/crossref_metadata_2025 huggingface dataset:
Mesocosm- and Field-Scale Evaluation of Lignocellulose- Amended Soil Treatment Areas for Removal of Nitrogen from Wastewater
Authors: Wigginton Sara , Amador Jose , Baumgaertel Brian , Loomis George , Heufelder George
Published: August 2021

Non-proprietary N-removal onsite wastewater treatment systems are less costly than proprietary systems, increasing the likelihood of adoption to lower N inputs to receiving waters. We assessed the capacity of non-proprietary lignocellulose-amended soil treatment areas (LCSTAs)—a 45-cm-deep layer of sand above a 45-cm-deep layer of sand and sawdust—to lower the concentration of total N (TN) in septic tank effluent (STE) at mesocosm and field scales. The mesocosm received wastewater for two years and had a median effluent TN concentration of 3.1 mg/L and TN removal of 60–100%, meeting regulatory standards of 19 mg/L or 50% removal. Removal varied inversely with temperature, and was lower below 10 °C. Removal was higher in the mesocosm than in five field sites monitored for 12–42 months. Median effluent TN concentration and removal met the standard in three continuously-occupied homes but not for two seasonally-occupied homes. Sites differed in temporal pattern of TN removal, and in four of five sites TN removal was greater—and effluent TN concentration lower—in the LCSTA than in a control STA containing only sand. The performance of non-proprietary LCSTAs was comparable to that for proprietary systems, suggesting that these may be a viable, more affordable alternative for lowering N inputs to receiving waters.
Supporting Restoration Decisions through Integration of Tree-Ring and Modeling Data: Reconstructing Flow and Salinity in the San Francisco Estuary over the Past Millennium
Authors: Hutton Paul H. , Meko David M. , Roy Sujoy B.
Published: August 2021

This work presents updated reconstructions of watershed runoff to San Francisco Estuary from tree-ring data to AD 903, coupled with models relating runoff to freshwater flow to the estuary and salinity intrusion. We characterize pre-development freshwater flow and salinity conditions in the estuary over the past millennium and compare this characterization with contemporary conditions to better understand the magnitude and seasonality of changes over this time. This work shows that the instrumented flow record spans the range of runoff patterns over the past millennium (averaged over 5, 10, 20 and 100 years), and thus serves as a reasonable basis for planning-level evaluations of historical hydrologic conditions in the estuary. Over annual timescales we show that, although median freshwater flow to the estuary has not changed significantly, it has been more variable over the past century compared to pre-development flow conditions. We further show that the contemporary period is generally associated with greater spring salinity intrusion and lesser summer–fall salinity intrusion relative to the pre-development period. Thus, salinity intrusion in summer and fall months was a common occurrence under pre-development conditions and has been moderated in the contemporary period due to the operations of upstream reservoirs, which were designed to hold winter and spring runoff for release in summer and fall. This work also confirms a dramatic decadal-scale hydrologic shift in the watershed from very wet to very dry conditions during the late 19th and early 20th centuries; while not unprecedented, these shifts have been seen only a few times in the past millennium. This shift resulted in an increase in salinity intrusion in the first three decades of the 20th century, as documented through early records. Population growth and extensive watershed modification during this period exacerbated this underlying hydrologic shift. Putting this shift in the context of other anthropogenic drivers is important in understanding the historical response of the estuary and in setting salinity targets for estuarine restoration. By characterizing the long-term behavior of San Francisco Estuary, this work supports decision-making in the State of California related to flow and salinity management for restoration of the estuarine ecosystem.
Agricultura Familiar: importância e dificuldades da inserção na alimentação escolar na microrregião de Picos – PI
Authors: Barbosa Gomes Sintia Andrea , Bezerra de Amorim Laerte
Published: August 2021

Objetivou-se destacar a importância e as dificuldades da inserção de gêneros alimentícios provenientes da agricultura familiar na alimentação escolar por meio de um estudo transversal descritivo, cujos dados foram obtidos no segundo semestre de 2015 nos 20 municípios que compõem a microrregião de Picos, PI. Um questionário composto por perguntas objetivas e subjetivas foi apresentado ao Nutricionista responsável pelo Programa Nacional de Alimentação Escolar (PNAE), na ausência do mesmo, ao secretário(a) de educação do município. Dezenove municípios estão inseridos no Programa e três dos vinte municípios não atingiram a meta de 30% de gêneros provenientes da agricultura familiar, sendo destacados como fatores que justificam esse dado: a deficiência em relação às infraestruturas para a produção, armazenamento e a distribuição, a falta de conhecimento por parte do agricultor quanto ao funcionamento do PNAE, a falta da documentação exigida pelo programa, condições climáticas e quantidade insuficiente de gêneros disponíveis para a venda. Diante dos resultados das entrevistas/questionários, foi perceptível a necessidade de maior incentivo e conscientização de gestores, profissionais de saúde, agricultores e comunidade na acepção de favorecer a agricultura familiar dentro do contexto da alimentação do escolar.
Atributos físicos e químicos do solo cultivado com gravioleira, sob adubação orgânica e mineral
Authors: Oliveira de Malta Altamiro , Esfrain Pereira Walter , Nóbrega Torres Mariana Neves , Oliveira de Malta Alan , Soares da Silva Edgley , Alves da Silva Samuel Inocêncio
Published: August 2021

A gravioleira é uma espécie frutífera que vem despertando interesse dentre os fruticultores do Brasil, no entanto, existem poucas informações relativas ao manejo da adubação. Sendo assim, o objetivo deste experimento foi avaliar os atributos físicos e químicos do solo de um pomar de gravioleira em função da adubação orgânica e mineral. Foi instalado um experimento em um pomar de gravioleira com 42 meses de idade entre os meses de janeiro a setembro de 2014, na cidade Areia-PB. O delineamento experimental foi em blocos casualizados, com sete tratamentos e quatro repetições. Os tratamentos utilizados foram: T1= testemunha (sem adubação); T2= adubação mineral (NPK); T3= esterco de bovino; T4= esterco de aves; T5= adubação mineral + esterco de caprino; T6= esterco de aves + 3 kg de pó de rocha; T7= esterco de caprino. As variáveis de fertilidade e de física do solo avaliadas foram: pH, fósforo, potássio, sódio, cálcio, magnésio, alumínio, hidrogênio + alumínio, carbono, matéria orgânica, densidade e porosidade do solo. Os dados foram submetidos à análise de variância e ao o teste de Tukey.  A adubação com esterco bovino influenciou positivamente os teores de potássio, sódio, carbono e matéria orgânica do solo; O esterco de aves isolado e adicionado ao pó de rocha, manteve o pH do solo numa faixa que favorece a disponibilidade de nutrientes, além de fornecer maior teor de fósforo no solo; Nenhum dos tratamentos afetou os teores de cálcio, magnésio, alumínio, hidrogênio + alumínio, além da densidade e porosidade total do solo.
Avaliação dos sistemas de pastejo em propriedades rurais de leite em Confresa-MT
Authors: Tavares Sandra , Oliveira Thiago , Caetano Leandro
Published: August 2021

O manejo correto de uma pastagem é o fator determinante para uma boa produção e resposta por parte do animal. Assim o presente trabalho visou comparar o desenvolvimento dos sistemas rotacionado e extensivo de pastejo em propriedades rurais produtoras de leite do município de Confresa-MT. A metodologia do projeto buscou a aplicação de questionário, coleta de amostras de forragem, e acompanhamento da produção leiteira das doze propriedades escolhidas, as amostras de cada propriedade avaliada foram coletadas e encaminhadas para o laboratório de bromatologia do Instituto Federal de Mato Grosso – Campus Confresa, um total de 36 amostras de diferentes forrageiras avaliadas. Foram analisados três tratamentos, sistema rotacionado de pastejo com dois dias de ocupação, rotacionado com mais de dois dias de ocupação e sistema contínuo de pastejo. Segundo dados estatísticos ao teste de Tukey a 5% o sistema rotacionado com 2 dias de ocupação apresentou resultados superiores em teores de massa verde, massa seca e produtividade leiteira em relação aos demais sistemas. Verificou se que o período de descanso foi fator primordial para tal resultado.
Ação de Bioestimulantes em cultivares comerciais de soja na Região Norte do Vale do Araguia-MT
Authors: Mota de Araújo Araújo Lauro Luiz , Ramos Denis , Brachtvogel Elizeu , Kovalski Anderson
Published: August 2021

Os bioestimulantes influenciam diretamente no desenvolvimento vegetal, podendo desempenhar papel importante no incremento de produtividade da cultura da soja. Desta maneira o objetivo deste trabalho foi avaliar o desenvolvimento e a produtividade de seis cultivares de soja (Glycine max L.) (HO CRISTALINO, M 8644 IPRO, TMG 2185 IPRO, NS 7901 IPRO, M 7739 IPRO e CZ48B32 IPRO) em função da pulverização de três bioestimulantes (Proggib®, Stimulate®, biozyme®) e uma testemunha, totalizando 24 tratamentos. O trabalho foi realizado em Confresa, nordeste de Mato Grosso, em delineamento experimental inteiramente casualizado (DIC). Foram realizadas duas pulverizações com intervalo de 10 dias, iniciando-se quando as plantas se encontravam no estádio fenológico R1, e a segunda R1 + 10, utilizando das dosagens de 250 ml. ha-1 (Stimulate®), 5 g há-1 (Progibb®) e 200 ml ha-1 (Biozyme®). Quando as plantas de soja estavam nos estádios fenológicos R6, R7 e R8 foram avaliadas as características de altura de planta, número de nós por planta, número de ramos reprodutivos por planta, número total de vagens por planta, número de grãos por planta, massa de mil grãos e produtividade final.
Characteristics of the main areas of labor organization
Authors: Olimskikh N.N.
Published: August 2021

The article deals with the main directions of labor organization, such as cooperation and division of labor, technical norming of labor, which allow to ensure maximum efficiency of labor organization.
How digital resources increase the safety culture in the enterprise
Authors: Soldatova Elena
Published: August 2021

Digital technologies are used not only to automate business processes and improve them, but are also increasingly applied in the field of labor protection. They are aimed at creating and training employees in various safety skills. Elena Soldatova, general director of OOO (LLC) Leader Info and founder of SOLDES company, tells about digitalization of business processes, what the level of industrial safety depends on, and how to improve the safety culture at the enterprise.
Development of a new mechanical elevator safety system
Authors: Altunin K. V.
Published: August 2021

Despite the existing safety systems of passenger elevators, a series of unpredictable accidents leading to harm to human health and even death, does not stop all over the world. The article is devoted to the author's patented solution for ensuring the safety of elevators for the transportation of goods and passengers using a new mechanical security system.
Fogyasztói attitűdök a probiotikus joghurtok piacán - Netnográfiai kutatás
Authors: Papp-Bata Ágnes , Szakály Zoltán
Published: August 2021

A funkcionális élelmiszerek piaca folyamatosan változik, és az eredményesség érdekében az élelmiszeripari vállalatoknak figyelemmel kell kísérniük a fogyasztói attitűdök változását ahhoz, hogy egyrészt hatékonyan tudják kommunikálni az egészséggel kapcsolatos információkat, másrészt a termékük valóban megfeleljen a vásárlói elvárásoknak. Mivel manapság általánossá vált és széles körben elterjedt az online közösségi oldalak használata (pl. blogok, fórumok, hírcsoportok, képmegosztó közösségek), az internetes tartalmak a fogyasztói szokásokat vizsgálók számára kiemelten fontos információs forrással bírnak. A kvalitatív típusú netnográfia az etnográfiai kutatási technikákat felhasználva, az online közösségek kultúrájának vizsgálatához járul hozzá, a témában szerveződött fogyasztói csoportok azonosításával. A kutatásunk során célul tűztük ki, hogy az online felületeken szerveződő blogok, fórumok és egyéb közösségi színtereken belül, a hozzászólók attitűdjei és motivációi alapján megkülönböztethető és elkülöníthető lakossági csoportokat azonosítsunk a funkcionális élelmiszerek fogyasztásával kapcsolatban, ezen belül is a probiotikus tejtermékek területére fókuszálva. Netnográfiai kutatásunk eredménye rávilágít arra, hogy a vásárlók igénylik és aktívan keresik a probiotikus joghurtokat, továbbá különösen fontos jelentőséggel bír a probiotikus tejtermékekkel összefüggő egészségvédő tulajdonságok megfelelő és érthető kommunikációja. A probiotikus tejtermékek piaci sikerességének a vásárlói tudatformálás és ismeretbővítés kiemelt szerepet játszik, azonban az egyik legnagyobb nehézséget az online térben éppen a megbízható, érthető és hiteles információk közvetítése jelenti.JEL-kódok: D83, I12
A fenntartható fogyasztói magatartás vizsgálata a tej és tejhelyettesítők piacán
Authors: Balsa-Budai Nikolett , Szakály Zoltán
Published: August 2021

Jelen tanulmányban arra a kérdésre kerestük a választ, hogy az átalakulóban lévő fogyasztói szokások milyen hatást gyakorolnak a tejipar és az általa készített termékek piaci helyzetére. A tejágazat egyre több kihívással néz szembe, mint a fenntarthatósági kérdések vagy a helyettesítését megcélzó alternatívák megjelenése. A tej, mint termék a táplálkozás egyik alapvető építőkövének tekinthető, így fontos, hogy az ágazat lépést tudjon tartani a fogyasztói elvárásokkal. Az utóbbi években egyre népszerűbb növényi italok és az új technológiával előállított tejalternatívák (tiszta tej, laboratóriumi tej, tojásalapú tejtermék-helyettesítő) kapcsán felmerülhet a kérdés, hogy milyen mértékben helyettesíthetőek a tejtermékek. Vajon létezik-e olyan termék, amely minden szempontból tökéletes alternatívája lehet a tejnek? A kérdések megválaszolása érdekében elsősorban fenntarthatósági szempontokat figyelembe véve feltérképeztük a tej jelenlegi piaci helyzetét és ágazatának főbb kihívásait. Majd megvizsgáltuk a helyettesítését célzó növényi italok jellemzőit és fogyasztói megítélésüket. Végül pedig egy másik – várhatóan hamarosan megjelenő – helyettesítő termék, a tiszta tej (clean milk) lehetséges piaci szerepét térképeztük fel. Eredményeink felhívták a figyelmet arra, hogy a tejipar várhatóan átalakulás előtt áll, ahol az új technológiai megoldások, például az etikusabb állattartás megjelenése lehet a fő irány. Az így előállított termékek várhatóan a fogyasztók számára is magasabb értéket fognak képviselni, amely feltételezhetően a termékek árában is tükröződik majd. Habár a növényi italok piaci részesedése dinamikus növekedést mutat, azonban jelenleg továbbra sincs olyan termék a piacon, amely minden szempontból tökéletes helyettesítője lehet a tejnek. Fontos azonban megjegyezni, hogy a különböző innovatív technológiával előállított tejhelyettesítők várhatóan új versenytársként fognak megjelenni a piacon.JEL-kódok: Q13, O13, O33, A13
Jó színvonalú hazai tejtermelő üzem gazdasági elemzése
Authors: Kovács Krisztián , Vida Viktória , Madai Hajnalka , Szűcs István
Published: August 2021

A kutatás magában foglalja a tejtermelő üzemi adatokon alapuló – üzemgazdasági elemzését, mely által értékelhetővé válik az ágazat – jó színvonalon való működését feltételezve – a költség-jövedelem viszonyok, illetve a működési hatékonysága, valamint a feltételezett zöldmezős beruházások esetében a beruházás 10 éves időszakon értelemzett dinamikus mutatókon (NPV, IRR, PI, DPP) alapuló gazdaságossága. Mivel számos hazai tejtermelő üzem az elérhető legfejlettebb technológiával termel, így a mutatói érdemben nem maradnak el a legjobb nyugat-európai üzemekétől, ezért a vizsgált ágazat esetében ún. „jó termelési színvonalra, illetve gyakorlatra” vonatkozik az elemzés. Az elvégzett elemzés egy termelő üzemi primer adatokból létrehozott determinisztikus szimulációs modellezésen alapul mely saját adatbázist használ. A kutatás megállapításainak egy része adatokkal és kalkulációkkal alátámasztottak, míg más részük szakértői becsléseken és szakértői véleményeken alapulnak.  Vizsgálataink alapján megállapítható, hogy az ún. jó termelési gyakorlatot követő modellüzem legfontosabb fajlagos naturális, ökonómiai és beruházáselemzési mutatói a tejtermelés esetén: Fajlagos éves tejhozam 11 000 kg/év; Termelési érték: 1 548,5 ezer Ft/tehén; Termelési költség: 1 312 ezer Ft/tehén; Nettó jövedelem: 236,5 ezer Ft/tehén; EBITDA: 404,6 ezer Ft/tehén; Diszkontált megtérülési idő beruházási támogatás nélkül: 11. év; Diszkontált megtérülési idő 50%-os támogatási intenzitás esetén: 6. év.JEL-kódok: Q12, Q13
Frontera e identidad, un proceso para la deconstrucción del poder:
Authors: Mugueta Miguel
Published: August 2021

La intención de esta investigación es mostrar como algunos estudios destinados a interpretar diferentes aspectos de la problemática sobre los estudios de frontera en la denominada "Línea de Fuertes y Fortines de la Frontera Sur de la provincia de Buenos Aires" del siglo XIX, han asumido un perfil que en muchos casos reproduce los relatos de una historiografía liberal incorporando las aventuras teóricas de las investigaciones en los EEUU en el proceso de la mal denominada conquista del oeste.

Al abordar la experiencia social del pasado y la reconstrucción de una identidad nacional y latinoamericana los cuerpos conceptuales teóricos y metodológicos, al re-interpretar nuestra historia, deben asumir el compromiso académico en la integración a un Estado Nación para poder, comenzar a ser leal con los segmentos populares de un pasado que reivindica lo que no requiere la industria teórica oficial.
The strategic management to improve the competitiveness of fuel market companies
Authors: ÁNGELES-GUZMÁN Casandra , AGUILAR-MORALES Norma , MAGAÑA-MEDINA Deneb Elí
Published: August 2021

Evaluate the effect of Strategic Management on the Competitiveness of fuel marketing companies, to generate a model as a proposal for improvement. Methodology: The methodology to be used is descriptive, since the description of the phenomena of Strategic Management, Competitiveness and Organizational Performance is carried out, through review of scientific research articles by more than 20 authors, in the available databases. In addition, it is of explanatory type since it defines the structure of behavior of the variables, the relationship that exists between them and their components. Contribution: Competitiveness model for fuel marketers.
Quality of university libraries: the case of the Universidad de Granada
Authors: ARJONA-JIMÉNEZ José Antonio , RUIZ-HERRERA Noelia
Published: August 2021

Objective: To present the analysis of the bibliographic collection of the Universidad de Granada (UGR) taking as a reference the teaching guides of the Degree in Psychology during the academic year 2019/2020. Method: An analysis of the bibliographic collection of the teaching guides of the Degree in Psychology of the UGR was carried out. Documents were analysed by title, year, document categorisation, document type and subject data. Information on availability and the possibility of consulting the document online was also included. The search was carried out in the automated online catalogue of the UGR Library. Results: A total of 1,775 bibliographic references were contained in the teaching guides of the 49 subjects (distributed among six departments). A total of 76.8% were considered complementary by the teachers and 89.2% of the proposed documents were books. The UGR libraries had 81.8% of the references, while the Psychology library had 65.8% of the material. 24.4% of the references had a more up-to-date edition in the library. Contribution: The analysis of the bibliographic collection provides information on the adequacy of the teaching guides and the availability of the university library collection. This is an indicator of the quality of teaching and of the university library system.
Editorial
Authors: Foster Michelle , van Waas Laura
Published: August 2021

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Reaching Stateless, Undocumented and Migrant Communities during the COVID-19 Pandemic: Lessons from the Grassroots Humanitarian Effort in Sabah, Malaysia
Authors: Baltazar Mary Anne K , Cheong Amanda R
Published: August 2021

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People's Right to a Nationality and the Eradication of Statelessness in Africa
Authors: Monono Darren Ekema Ewumbue
Published: August 2021

The right to nationality, enshrined in art 15 of the Universal Declaration on Human Rights, is absent in the 1981 African Charter on Human and Peoples’ Rights, known as the Banjul Charter. On-going efforts by African institutions to address this gap, with a view to eradicating statelessness in the continent have, however, focused on the right to nationality as an individual right. This has undermined the spirit of the Banjul Charter, which consecrates peoples’ rights as an African specificity. This article highlights the Banjul-led African human rights system and its specificities of human rights, particularly with regard to collective community and peoples’ rights. Based on the recognition and communitarian theories, it examines different concepts related to collective rights and highlights the manifestation of peoples’ rights in African case law. It then analyses the nexus between peoples’ rights to nationality and statelessness in the continent. It concludes that the eradication of statelessness by 2024 in Africa cannot be effective unless the focus is on peoples’ collective rights to nationality.
Judgment No 335-13-JP (12 August 2020) (Constitutional Court of Ecuador)
Authors: Moreno-Sáchica Ana María
Published: August 2021

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Statelessness and COVID-19: An Introduction
Authors: Liew Jamie
Published: August 2021

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PELAKSANAAN INVENTARISASI ASET DAERAH DI PROVINSI RIAU (Studi kasus di Badan Pengelola Keuangan dan Aset Daerah Provinsi Riau)
Authors: Rosita Rosita , Zulkarnaini Zulkarnaini
Published: August 2021

this study aims to determine how the implementation is inventory of regional assets in the regional financial and asset management agency of Riau province, and to find out what are the obstacles in the implementation of the asset inventory, The theory used in this study was the Asset Inventory by Sugiama in Muthiah Sangadji using 3 indicators (Data Collection, Recording, and Reporting). To be able to answer these problems the researcher used a qualitative method with a descriptive approach / in this qualitative research the writer used data collection techniques in the form of observation, Interviews and documentation then analyzed based on the research problem. The results of this study indicate that the implementation of the Regional Asset Inventory at the Regional Financial and Asset Management Agency of Riau Province, Seen from the 3 indicators (Data Collection, Recording and Reporting) has not been carried out properly because there are still deficiencies in controlling activities such as the implementation of the merging of inventory cards and there are still delays in making report. The constraints in this study are the lack of human resources, The method of data collection of assets is not optimal, and not yet orderly in administration.
COVID-19 Data Analysis using Chest X-ray
Authors:   Student, SVKM‘s Narsee Monjee Institute of Management Studies (NMIMS), Mumbai (Maharashtra), India., Ahmed Ishtiaque , Darda Manan ,   Student, SVKM‘s Narsee Monjee Institute of Management Studies (NMIMS), Mumbai (Maharashtra), India., Tikyani Neha ,   Student, SVKM‘s Narsee Monjee Institute of Management Studies (NMIMS), Mumbai (Maharashtra), India., Agrawal Rachit ,   Student, SVKM‘s Narsee Monjee Institute of Management Studies (NMIMS), Mumbai (Maharashtra), India., Joshi Dr. Manjusha ,   Assistant Professor, SVKM‘s Narsee Monjee Institute of Management Studies (NMIMS), Mumbai (Maharashtra), India.
Published: August 2021

The COVID-19 pandemic has caused large-scale outbreaks in more than 150 countries worldwide, causing massive damage to the livelihood of many people. The capacity to identify contaminated patients early and get unique treatment is quite possibly the primary stride in the battle against COVID-19. One of the quickest ways to diagnose patients is to use radiography and radiology images to detect the disease. Early studies have shown that chest X-rays of patients infected with COVID-19 have unique abnormalities. To identify COVID-19 patients from chest X-ray images, we used various deep learning models based on previous studies. We first compiled a data set of 2,815 chest radiographs from public sources. The model produces reliable and stable results with an accuracy of 91.6%, a Positive Predictive Value of 80%, a Negative Predictive Value of 100%, specificity of 87.50%, and Sensitivity of 100%. It is observed that the CNN-based architecture can diagnose COVID19 disease. The parameters’ outcomes can be further improved by increasing the dataset size and by developing the CNN-based architecture for training the model.
Neural Mass Model-Based Different EEG Signal Generation and Analysis in Simulink
Authors:   Department of Electronics and Communication Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh., Islam Sheikh Md. Rabiul , Islam Md. Shakibul ,   Department of Electronics and Communication Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh.
Published: August 2021

The electroencephalogram (EEG) is an electrophysiological monitoring strategy that records the spontaneous electrical movement of the brain coming about from ionic current inside the neurons of the brain. The importance of the EEG signal is mainly the diagnosis of different mental and brain neurodegenerative diseases and different abnormalities like seizure disorder, encephalopathy, dementia, memory problem, sleep disorder, stroke, etc. The EEG signal is very useful for someone in case of a coma to determine the level of brain activity. So, it is very important to study EEG generation and analysis. To reduce the complexity of understanding the pathophysiological mechanism of EEG signal generation and their changes, different simulation-based EEG modeling has been developed which are based on anatomical equivalent data. In this paper, Instead of a detailed model a neural mass model has been used to implement different simulation-based EEG models for EEG signal generation which refers to the simplified and straightforward method. This paper aims to introduce obtained EEG signals of own implementation of the Lopes da Silva model, Jansen-Rit model, and Wendling model in Simulink and to compare characteristic features with real EEG signals and better understanding the EEG abnormalities especially the seizure-like signal pattern.
Accurate Signal Recovery in UHF Band Reuse-1 Cellular OFDMA Downlinks
Authors: K Giridhar , Mohan M V Abhay
Published: August 2021

Accurate signal recovery is challenging for non-co-located transmit antennae deployments due to Inter Tower Interference (ITI) in reuse-1 cellular OFDMA networks. In the sub-1 GHz UHF band where only SISO deployment is possible, interference aware receiver algorithms are essential to mitigate the ITI. In this work, we develop a Joint Modified Least Squares (JmLS) algorithm for channel estimation in the presence of ITI. Firstly, it is shown that the JmLS algorithm achieves the Cramer-Rao lower bound. Next, an approach to managing the possibly distinct carrier frequency offsets of the different co-channel signals of interest is proposed. This improves the quality of the bit-level Joint Log-Likelihood Ratio. Finally, the impact of the choice of pilot sub-carrier information in the block modulated air-interface on the coded block error rate performance is studied. In particular, a comparison is made between (i) frequency orthogonal pilots from the different sectors, vis-a-vis, (ii) a pilot-on-pilot arrangement using pseudo-orthogonal sequences. The study indicates that based on the extent of frequency selectivity and the number of interferers being considered, (ii) is advantageous when the set of ITI pilots incident on a receiver is small when compared to the set of all possible pilots.
Existe associação entre periodontite e hipertensão arterial?
Authors: Medeiros Malcher Carlos
Published: August 2021

Estima-se que a periodontite afete mais de 50% da população mundial e, em sua forma grave, é a sexta doença humana mais comum. Evidências clínicas apoiam que a periodontite afeta a função endotelial sistêmica e isso pode ter um impacto na hipertensão; alguns relatos sugerem possíveis efeitos diretos da bacteriemia oral relacionada à microbiota também na disfunção vascular. O objetivo do presente artigo é compreender a patogênese da hipertensão e sua associação com a periodontite, bem como os possíveis mecanismos comuns envolvidos. Foi realizada uma revisão da literatura, por meio de consulta ao MEDLINE, a fim de analisar dados recentes que sustentam que pacientes com periodontite têm maior probabilidade de apresentar hipertensão arterial. A estrutura conceitual que apoia essa hipótese é discutida. Os dados corroboram que, na presença de periodontite moderada, a probabilidade de ter hipertensão é de 22% e essa probabilidade aumenta para 49% nas formas graves. Essa condição pode contribuir potencialmente para a imunidade pró-hipertensiva de várias maneiras; além disso, pode estar associado a disfunção endotelial permanente. Assim, tornou-se evidente que a inflamação e o sistema imunológico têm um papel causal na patogênese da hipertensão, embora esse mecanismo ainda não esteja claro. Da nossa análise podemos concluir que existe uma associação entre periodontite e hipertensão e, portanto, a terapia periodontal pode ser considerada como uma ferramenta na prevenção e tratamento da hipertensão. O desafio ainda está aberto para pesquisas direcionadas ao entendimento da patogênese da hipertensão.
La ética pública en México y su relación con los derechos humanos y el derecho penal
Authors: Elizalde Castañeda Rodolfo Rafael , Aguilera García Edgar Ramón
Published: August 2021

El objetivo de este artículo fue analizar comparativamente los códigos de ética para los servidores públicos federales que han estado vigentes en México y su relación con los derechos humanos y el derecho penal, con el fin, primero, de conocer la forma en que han evolucionado dichos códigos a partir de sus principios y valores éticos, segundo, estudiar el vínculo que guardan estos con las reformas constitucionales en derechos humanos de 2011 y en derecho penal del 18 de junio de 2008, para comprender el motivo por el que algunas organizaciones no gubernamentales (ONGs), como Human Rigth Watch (HRW), Transparencia Internacional (TI), Latinobarómetro, World Justice Proyect (WJP) y México Evalúa, siguen ubicando a México en los primeros lugares de corrupción e impunidad.
Estudio histórico sobre la inteligencia; un término inacabado
Authors: Morales Alarcón Griselda Jaqueline , Fabré Platas Danú Alberto , Zavaleta Sergio Vázquez
Published: August 2021

La inteligencia es un concepto primordial dentro de diferentes ámbitos, teniendo un impacto esencial dentro del educativo, en el cual se han elaborado distintos estudios desde el siglo pasado y el presente. Se ha plasmado conforme a las circunstancias y necesidades de la época, proporcionándole una esencia distinta al sujeto. Aunque en su mayoría es un estudio realizado por psicólogos, los postulados planteados son comprensibles dadas las exigencias que presentan en su realidad, la cual es tomada en cuenta para diseñar una de nición característica de cada enfoque. De esta manera, las de niciones que se proporcionan comparten características, ya que una se retroalimenta y retoma de la otra, siendo así una construcción histórico-social en constante modi cación. El presente trabajo se deriva de la tesis de licenciatura en pedagogía de la Universidad Veracruzana, denominado “Inteligencia emocional y las relaciones interpersonales de los estudiantes de pedagogía, generación 2016”, de Morales Alarcón y Vázquez Zavaleta (2020).
Estigma hacia pacientes psiquiátricos en estudiantes mexicanos de psicología
Authors: Martínez Castillo Alma Alberta , Lagunes Córdoba Roberto , Rosas Santiago Francisco Javier
Published: August 2021

El objetivo de estudio fue analizar el estigma hacia la enfermedad mental en estudiantes de psicología, para determinar si los conocimientos y actitudes tienen valor predictivo sobre las conductas estigmatizantes hacia personas con alguna enfermedad mental. Participaron 864 universitarios mexicanos de tres diferentes entidades federativas, con una edad promedio de 21.4±4.2 años, el 72.5 % fueron mujeres. El estudio contó con la aprobación de un Comité de Ética y los datos se recabaron en las escuelas donde estudiaban los participantes. Se adaptaron al español para su aplicación tres cuestionarios de autorreporte: la Escala de Conocimiento de la Salud Mental (MAKS), la Escala de Actitudes de los Médicos (MICA) y la Escala de Comportamiento Informado e Intencionado (RIBS). Los resultados de este estudio mostraron que los estudiantes de psicología de semestres superiores y con mayor edad tuvieron mejores actitudes hacia la enfermedad mental. Además, el conocimiento, las actitudes y la experiencia de convivir con algún paciente psiquiátrico, son predictores de menos conductas de discriminación. Se discuten los hallazgos a la luz de sus implicaciones para la formación de los futuros psicólogos.
Satisfacción de vida y riesgos psicosociales en el trabajo: la NOM-035 frente al bienestar
Authors: Méndez Zavala Juan Alfonso , González Juárez Marja Teresita
Published: August 2021

El trabajo in uye en el bienestar, por este motivo, el objetivo del presente estudio ha sido conocer los factores de riesgo psicosociales en el trabajo y del entorno organizacional que in uyen de manera signi cativa sobre la satisfacción con la vida en una muestra de colaboradores de un centro de trabajo de la industria automotriz en la región Laja-Bajío en México, a través del análisis de encuestas de la guía de referencia III de la NOM- 035-STPS-2018 y la predicción que estos factores hacen sobre el bienestar como satisfacción con la vida. Se realizó un modelo de regresión lineal múltiple con método forward stepwise y diversos modelos parciales con variables de control. Los resultados muestran que la interferencia en la relación trabajo-familia y el reconocimiento del desempeño son los factores de riesgo principales que explican la satisfacción con la vida, lo cual es consistente con la orientación relacional e interpersonal del bienestar para socioculturas latinoamericanas. Se discute la importancia de buscar una comprensión amplia de la relación trabajo-vida, en especial en el dominio familiar y en las relaciones laborales a través del liderazgo para comprender cómo el bienestar se ve in uido por estos factores.
A Review of Research Directions and Research Methods of Farmland Weeds
Authors: Li Shujuan , Huang Guoqin
Published: August 2021

Farmland weeds are an important part of farmland ecosystems. Research on farmland weeds is one of the major research fields in agricultural ecology. It is of great significance for achieving high yield, high quality and high efficiency in agriculture. In recent years, research on farmland weeds has focused on investigation of weed communities, research on weed seed banks, and research on weed control. These three research directions complement each other. Among them, the investigation work of weed communities and the research of weed seed banks are helpful for us to grasp the occurrence of farmland weeds more accurately and provide references for the control of farmland weeds. This article summarizes the research directions of farmland weeds in recent years (weed community investigation, weed seed bank, weed control) and the research methods used, provide reference value for the follow-up research work of farmland weeds, and provide theoretical support for promoting the development of rural ecological industry and building beautiful villages.
A 23-year summary of a Monitoring Avian Productivity and Survivorship (MAPS) bird banding site in New River Gorge National River, West Virginia
Authors: Margenau Eric , Paul Lenza
Published: August 2021

Long-term bird banding data were collected from 1996–2019 (except in 2008) to assess the New River riparian zone avian community in one location in New River Gorge National River (NERI). The NERI banding station has banded over 4,500 individuals over 10,700 net hours in the twenty-three years it has been in operation and has captured 80 different species. Total captures, capture rate, and total species have been declining annually over the study period. Species associated with early-successional/shrubland habitat also declined over the study period, which is consistent with regional trends during the same time frame. Species richness of habitat guilds did not change over the study period within specific major habitat types. Capture metrics of Louisiana Waterthrush, an obligate riparian species, did increase over the study period. Continued banding will further provide information to assist in local management and contribute to regional data.
Os encontros temáticos da licenciatura em Matemática da Unirio como espaço de (auto)formação de formadores de professores
Authors: Antunes Gladson Octaviano , Paula Michel Cambrainha de , Moustapha-Corrêa Bruna , Matos Diego
Published: August 2021

Diante dos desafios impostos pela pandemia de Covid-19, professores em atuação na educação básica e na universidade modificaram suas rotinas profissionais docentes. A necessidade de manutenção das atividades de forma remota impulsionou a busca por tecnologias digitais para o ensino, situando-as no centro do debate. Neste artigo, relatamos uma experiência realizada com professores que atuam no curso de Licenciatura em Matemática da Universidade Federal do Estado do Rio de Janeiro (UNIRIO), a partir de encontros temáticos, ocorridos virtualmente, cujos objetivos iniciais pretendiam discutir iniciativas que, embora em caráter emergencial, se aproximassem dos princípios da educação online. As reuniões (gravadas em vídeo) extrapolaram seus objetivos iniciais e se configuraram como espaços colaborativos de formação e de desenvolvimento profissional de formadores de professores de matemática. Entendemos que uma importante contribuição do relato dessa experiência está em situar o formador no cerne do debate sobre a formação de professores de matemática, problematizando a escassez de ambientes formativos que possibilitem o compartilhamento de práticas docentes, a exposição de dificuldades vivenciadas pelos formadores em sua atuação profissional e discussões sobre os saberes docentes necessários ao ensino de matemática na educação básica. Além disso, ao relatar os desafios enfrentados e as soluções que emergiram do cenário emergencial que vivenciamos, buscamos ir além das ideias presentes na literatura sobre formação de professores para o contexto da formação do formador.
Impactos da pandemia de Covid-19 na rotina profissional de professores que ensinam Matemática: alguns aspectos de precarização do trabalho docente
Authors: Marques Pedro Paulo Mendes da Rocha , Carvalho Thays Rayana Santos de , Esquincalha Agnaldo da Conceição
Published: August 2021

Da educação em tempos de pandemia emerge uma agenda de pesquisa para compreender os impactos do distanciamento social e de todo o contexto da Pandemia de COVID-19 nos processos educacionais. Esse texto, em particular, destina-se a investigar a rotina de professores que ensinam matemática na modalidade de ensino remoto emergencial, em particular, aspectos que revelem a precarização do trabalho docente. Para isso, apresenta-se uma breve revisão de literatura sobre ensino remoto e precarização docente. A pesquisa, de abordagem qualitativa, envolveu 300 professores das diversas redes e dos diferentes níveis de ensino de todo o Brasil, participantes de um curso de extensão sobre ensino de matemática em ambientes virtuais, ofertado durante a pandemia. Os dados, gerados no contexto do curso, foram tratados com inspiração na análise temática de conteúdo, e foram categorizados em dez aspectos de precarização do trabalho docente no ensino remoto, e agrupados em três blocos, a saber: condições de trabalho, relação professor-aluno e relação com recursos digitais.
Research and Development Spillover, Irrigation Water Use and Agricultural Production in Pakistan
Authors: Usman Muhammad , Hameed Gulnaz , Saboor Abdul , Almas Lal Khan
Published: August 2021

This research entails investigation of the impacts of Research and Development (R&D) spillover and irrigation water use efficiency on agricultural productivity in Pakistan. Influenced through the importance of R&D spillovers in innovation, water scarcity, irrigation technology, internal and external R&D shocks, human capital, agriculture employment and land were analyzed in the agricultural productivity. Considered the research objectives the annual timeseries data is collected for the period of 1973 to 2020 from different sources. The Autoregressive Distributed Lag (ARDL) model is applied to investigate the contribution of knowledge spillover and water resources efficiency for agricultural production in Pakistan. The results suggest the presence of positive and significant impact of foreign and domestic R&D spillovers on agriculture productivity of Pakistan. Further, the study found presence of larger positive externalities associated with external R&D spillovers in agriculture productivity. The estimates highlight that efficient utilization of water technology performs positive role in agriculture productivity in Pakistan. The results of both human capital and interactive term have negative sign and are significant which has clearly indicated that agriculture labor has less absorptive ability of foreign knowledge spillover. From the estimated results, it is recommended that government needs to focus on availability and accessibility of advance technology for farmers through increased outreach and extension services to educate the farmers and accelerate adoption of innovation in agriculture. Further, it is recommended that the Pakistani government must focus on the exploration of alternative irrigation technology in agriculture production for efficient use of water to increase agriculture productivity. Through the adoption of advanced irrigation techniques, the farmers can conserve the irrigated water, enhance water use efficiency in food production and overcome climatic challenges for agriculture production as well as food insecurity issues in Pakistan.
Application of Statecharts in Buck-Boost DC-DC Converter Simulation
Authors: Cendoya Marcelo G. , Toccaceli Graciela M.
Published: August 2021

A very attractive and relatively simple option to simulate a DC-DC converter is to use a hybrid model. In this case, the need to use very small simulation steps (as those necessary to simulate models carried out at the physical level) is avoided. Furthermore, unlike the averaged state-space models, it has the advantage that the model is valid throughout the entire working range of the converter and for both conduction modes (continuous and discontinuous). By simulating several renewable energy conversion systems incorporating DC-DC converters, the authors have discovered the true potential of this modeling method. Despite its inherent advantages, this approach to DC-DC converters simulation is not as widely adopted as it should be. This work tries to encourage the reader of its use in certain typical situations. In this article the implementation of the hybrid model of the DC-DC Buck-Boost converter, using Statechart techniques, is performed. This model was written in the Stateflow language, a tool from the MATLAB®/Simulink environment, and allowed the creation of a building block formed by the described converter model with adequate interfaces to the SimPowerSystem and Simulink environments. The block is validated by comparing simulation results, realized under different operating conditions, with calculations done employing well-known and proven formulas. As an example of the use of the presented block, a buck-boost DC-DC converter with voltage and current control loops is simulated, corroborating its correct performance
MENYUSUN KURIKULUM PAUD (PERENCANAAN PEMBELAJARAN DARI RUMAH SELAMA MENGHADAPI PANDEMI COVID-19)
Authors: AZIZAH ELISA NOVIE , Tanto Octavian Dwi , Naningtias Sulistia Arum , Rahmawati Rani Umi
Published: August 2021

Kurikulum 2013 Pendidikan Anak Usia Dini menjadi fundamen bagi penyiapan  pengembangan dan aspek struktur proses pembelajaran di jenjang Pendidikan Anak Usia Dini (PAUD). Selajutnya pada masa pandemi covid-19 ini pembelajaran dilakukan secara daring, prinsip dikeluarkannya kebijakan pendidikan di masa Pandemi Covid-19 oleh Menteri Pendidikan dan Kebudayaan (Mendikbud) adalah dengan memprioritaskan kesehatan dan keselamatan peserta didik, pendidik, tenaga kependidikan, keluarga, dan masyarakat. Tahun ajaran baru bagi pendidikan anak usia dini (PAUD), pendidikan dasar, serta pendidikan menengah di tahun ajaran 2020/2021 tetap dimulai pada bulan Juli 2020. Namun demikian, untuk daerah yang berada di zona kuning, oranye, dan merah, dilarang melakukan pembelajaran tatap muka di satuan pendidikan. Satuan pendidikan pada zona-zona tersebut tetap melanjutkan Belajar dari Rumah. Untuk menunjang sistem belajar pembelajaran (Belajar dari Rumah) saat pandemi Covid-19 maka guru harus memahami antara kurikulum yang berlaku dan kondisi dilapangan yakni dengan cara guru harus mampu membuat perencanaan pembelajaran dari Rumah (pembelajaran daring)

Tujuan dari Pengabdian Masyarakat ini yakni, untuk meningkatkan kompetensi guru Pendidikan Anak Usia Dini Kabupaten Ngawi dalam kemampuan pembuatan pengembangan perencanaaan pembelajaran dari rumah. Sedangkan metode yang dipakai dalam Pengabdian Masyarakat ini memakai metode diskusi, ceramah bervariasi, Pre-Test dan Post-Test. Selanjutnya ketercapaian pemahaman materi yang disampaikan dinilai cukup baik dengan meningkatnya hasil dari pre-test dan post-test yang telah dilakukan. Berdasarkan soal yang telah dibuat sebagai instrumen pengukuran pemahaman peserta, rata-rata peserta mendapatkan nilai 47,5 pada tes awal (pre-test) dan mendapatkan nilai 63,1 pada tes akhir (post-test), hal tersebut menunjukkan peningkatan pemahaman materi oleh peserta pasca pemberian materi.
TIPS AND TRICKS ASSISTANCE CHILDREN LEARNING FROM HOME
Authors: Wijayanti Arwendis , Narendradewi Kusumastuti  , Diah  , Miftah
Published: August 2021

Peran orang tua sangatlah penting diperlukan dalam proses pembelajaran anak selama dirumah. Selain itu orang tua berperan penting dalam memberikan edukasi kepada anak yang masih belum bisa memahami tentang pandemi yang sedang mewabah untuk tetap berdiam diri dirumah agar tidak tertukar dan menularkan wabah pandemi COVID-19 ini.Kegiatan pengabdian ini dilakukan dalam satu kali pertemuan dengan peserta sebanyak 214 orang yang terdiri dari  mahasiswa PG PAUD, guru, orang tua dan umum. Kegiatan pengabdian dilaksanakan dalam bentuk webinar melalui aplikasi zoom meeting. Diharapkan kegiatan pengabdian kepada masyarakat ini mampu meningkatkan pemahaman dan pengetahuan para orang tua, guru dan mahasiswa dalam menerapkan tips dan trik pendampingan anak belajar dari rumah di saat pandemi COVID-19 saat ini.