bluuebunny/crossref_metadata_2025 huggingface dataset:
Non-Hermitian Star-shaped Quantum Graphs
Authors: Znojil Miloslav
Published: March 2021

A compact review is given, and a few new numerical results are added to the recent studies of the q-pointed one-dimensional star-shaped quantum graphs. These graphs are assumed endowedwith certain specific, manifestly non-Hermitian point interactions, localized either in the inner vertex or in all of the outer vertices and carrying, in the latter case, an interesting zero-inflow interpretation.
Developing Control and Monitoring Software for the Data Acquisition System of the COMPASS Experiment at CERN
Authors: Bodlák Martin , Jarý Vladimír , Konorov Igor , Mann Alexander , Nový Josef , Paul Severine , Virius Miroslav
Published: March 2021

This paper focuses on the analysis, design and development of software for the new data acquisition system of the COMPASS experiment at CERN. In this system, the data flow is controlled by custom hardware; the software will therefore be used only for run control and for monitoring. The requirements on the software have been analyzed, and the functionality of the system has been defined. The system consists of several distributed nodes; communication between the nodes is based on a custom protocol and a DIM library. A minimal version of the system has already been implemented. Preliminary results of performance and stability tests have shown that the system fulfills the defined requirements, and is stable. In the next phase of development, the system will be tested on the real hardware. It is expected that the system will be ready for deployment in 2014.
Proposta de um conjunto de indicadores de desempenho em agroindústrias: o caso de usinas sucroalcooleiras
Authors: Pavani Daniel Augusto Borges , Batalha Mario Otavio
Published: March 2021

Este trabalho tem por objetivo elaborar e propor um conjunto de indicadores de desempenho estratégicos e táticos para uma usina sucroalcooleira. Esses indicadores têm por característica abranger todas as áreas da usina para permitir aos tomadores de decisão uma visão global da empresa. Os indicadores foram obtidos por intermédio de uma pesquisa-ação que envolveu gestores das diversas áreas da usina. Os indicadores propostos utilizam o framework Performance Prism para sua construção e atendem às necessidades de gestão da empresa para os diretores da usina. Para demais níveis hierárquicos da empresa, o trabalho sugere que os ciclos propostos sejam replicados. O modelo proposto assume que indicadores de desempenho em uma usina sucroalcooleira deve contemplar aspectos ligados à industrialização da cana-de-açúcar e às atividades de produção agrícola. Neste sentido, são propostos 24 indicadores de desempenho que atendem às expectativas da usina. A equipe de diretores da usina colocará em prática os indicadores sugeridos e utilizará a pesquisa-ação proposta neste trabalho para expandir o conjunto de indicadores para o nível operacional. A principal contribuição deste artigo é a proposição de indicadores de desempenho que compreendem o conjunto de atividades de uma usina de cana-de-açúcar.
Análise da rentabilidade de clientes sob o enfoque da decisão multicritério
Authors: Silva Bruno Lima , Amaral Thiago Magalhães
Published: March 2021

O processo de relacionamento com o cliente é vital para a sustentabilidade de uma organização e para a manutenção da vantagem competitiva. Este trabalho objetivou analisar a rentabilidade dos compradores de uma empresa produtora de artigos de couro localizada na Região do Vale do São Francisco a partir da Análise de Decisão Multicritério. Trata-se de uma pesquisa descritiva, com enfoque quali-quantitativo. Os resultados obtidos a partir da aplicação do Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE II) proporcionaram à instituição o estudo da carteira de clientes, onde se identificou quais os consumidores são os mais rentáveis (A5, A9 e A8), com base nos critérios custo de oportunidade, participação sobre a receita, respeito ao ponto de equilíbrio, quantidade consumida de artigos de baixa vazão e variedade de artigos consumida, quando comparados com os trinta (30) demais. Então, em posse desses resultados, a organização poderá criar estratégias de relacionamento com os clientes para torná-los ainda mais rentáveis, atribuindo maior assertividade na busca pelo alcance dos objetivos organizacionais.
Avaliação de ciclo de vida de uma capota marítima automotiva
Authors: Rech Cristiane de Brito , Ritter Carla Eliana Todero
Published: March 2021

A Avaliação do Ciclo de Vida do Produto é uma ferramenta de gestão ambiental utilizada para levantamento dos aspectos e impactos ambientais significativos de produtos, considerando não apenas seu processo produtivo. As entradas do sistema de produto, subsistemas envolvidos, saídas, utilização pelo cliente final e seu descarte são consideradas nessa avaliação. Nesta pesquisa foram estudados os requisitos das Normas ISO:NBR 14.040, 14.041 e 14.001 que regulamentam a aplicação desta ferramenta para avaliar os métodos utilizados na produção de uma capota marítima, bem como sua abrangência e limitações. Foi utilizado o software SimaPro para construir o inventário de ciclo de vida e, ao modelar, avaliar os impactos ambientais significativos durante o processo desde a extração da matéria-prima. O estudo permitiu identificar que as peças em alumínio por unidade produzidas apresentaram maior impacto na emissão de 71,7Kg de CO2 eq, contribuindo com o efeito estufa. Quando houve a substituição das mesmas por nylon houve a redução de 30,74% na emissão de gás carbônico. Já a pegada de carbono G2G da capota equivale a 1,09 kg CO2 apenas 2,65% do impacto gerado pela capota.
Proposta de otimização dos processos logísticos do porto de Itajaí utilizando simulação e indicadores da teoria das filas
Authors: Da Silva Maurício Randolfo Flores , Garbin Fernanda Gobbi de Boer , Santos Ivonir Petrarca dos , Frazzon Enzo Morosini
Published: March 2021

O cenário de avanço econômico de países emergentes e a descentralização da economia global, vivenciado nas últimas décadas, aumentou o uso do modal aquaviário, já que este é o tipo de transporte mais eficiente para grandes cargas a longas distâncias, como acontece nas exportações e importações. Entretanto, esse aumento da demanda tem evidenciado aos terminais portuários a necessidade de um gerenciamento logístico eficiente para evitar o acúmulo de filas e um longo tempo de espera nos processos de carga e descarga de navios. Nesse contexto, o objetivo deste trabalho é elaborar uma proposta de atendimento de clientes e movimentação de cargas que minimize o tempo de espera dos navios no Porto de Itajaí. A partir de uma entrevista semiestruturada e do acompanhamento das operações no porto, foi construído um modelo conceitual, e, posteriormente, traduzido em um modelo computacional, que foi validado em relação ao modelo real de funcionamento do terminal. Também foi feita uma análise dos processos e levantamento de oportunidades de melhoria para as operações, que permitiu a construção de três modelos alternativos de atendimento, que foram simulados no software ArenaÒ e os resultados foram comparados para identificar a melhor solução para a operação do Porto de Itajaí.
Estudo de tempos e movimentos: uma análise em uma distribuidora de alimentos
Authors: Sousa Milena Jeimissa de Lima , Correia Ana Maria Magalhães , Gonçalves Helen Silva
Published: March 2021

O objetivo desta pesquisa foi analisar a forma como o estudo de tempos e movimentos pode auxiliar no aprimoramento das operações de carregamento e descarregamento de uma distribuidora de alimentos localizada no Estado do Ceará/CE. A pesquisa é classificada em quali-quantitativa, exploratória e descritiva. Os dados foram obtidos por meio de entrevistas semiestruturadas e observação in loco com o operador que realiza as operações em questão. Os resultados da pesquisa indicam que através da ferramenta de cronoanálise o tempo padrão para carregamento e descarregamento são 445,918 e 632,129 segundos, respectivamente. Logo, concluiu-se que esse seria o tempo necessário para um operador qualificado, em condições normais executar uma unidade de serviço. Para as dificuldades encontradas de aspecto ergonômico, foram propostas algumas sugestões visando manter a produtividade sem comprometer a saúde dos trabalhadores.
Риски концентрации власти в эпоху искусственного интеллекта: между следящим капитализмом и цифровым Левиафаном
Authors: Климович Александр Павлович
Published: March 2021

В статье рассмотрен феномен роста влияния лидеров IT-индустрии, предпринята попытка анализа этого явления. Описаны технологические особенности платформенной архитектуры, способствующие концентрации власти в руках крупнейших концернов информационного рынка. Обрисована бизнес-модель большой пятерки GAFAM, истолкованная в качестве ключевого источника власти цифровых гигантов. Представлено описание качественного отличия цифрового капитализма начала XXI века от индустриального капитализма прошедшего столетия. Изложены подходы критики цифрового капитализма, опирающиеся на опыт критических теорий классиков социологии. Рассмотрены принципы выстраивания отношений государственных структур с IT-индустрией с точки зрения баланса и концентрации власти, освещены авторитарные и демократические варианты взаимодействия.
The Rise of Interactional Multimodality in Human-Computer Interaction
Authors: Кловайт Нильс , Ерофеева Мария Александровна
Published: March 2021

The field of human-computer interaction (HCI) investigates the intersection between the design of devices and users. From an early focus on interaction modeling based on psychological experiments, the field has since experienced a shift towards the study of how actual humans interact with autonomous devices. The field became conductive to ethnographic, observational and videographic studies of human-device interaction. Conversation-analytic HCI became possible. That said, this new wave of researchers was never truly able to dethrone the psychological common sense of the field. With recent developments in both the technical-sensorial capabilities and outward actuational range of embodied virtual agents, the field of HCI has once again returned to the question of the sequential unfolding of the interaction between users and intelligent agents, and the multimodal interactional repertoire that is deployed throughout. This review will highlight the situational orientation of high-impact research in the field, and relate it to the cotemporaneous development of ethnomethodological and conversation analytic frameworks.
Acknowledgments. The article was prepared in the framework of a research grant funded by the Ministry of Science and Higher Education of the Russian Federation (grant ID: 075-15-2020-908). The article was prepared in cooperation with the Sber (ex. – Sberbank’s) Gamification Lab.
Дисциплинарные практики цифрового селф-трекинга: между эмансипацией и контролем
Authors: Давыдова Александра Михайловна , Солянова Мария Алексеевна , Соренсен Кристина
Published: March 2021

В связи с растущей цифровизацией общества селф-трекинг через приложения и устройства стремительно набирает популярность. Несмотря на его обширную экспансию в разные сферы жизни, сам феномен имеет противоречивую природу. С одной стороны, селф-трекинг способствует расширению возможностей для самопознания с целью дальнейшего преобразования себя, с другой — мобильные технологии вторгаются в личное пространство индивида, устанавливая контроль над практиками повседневной жизни. Именно такой парадоксальный характер цифрового селф-трекинга подталкивает к его дальнейшему и более детальному изучению.
В рамках исследования проведена серия интервью с пользователями различных цифровых трекеров. В результате были выявлены основные механизмы осуществления контроля со стороны мобильных приложений. Они выражаются в наборе дисциплинарных (уведомления, визуализация данных пользователя) и социальных практик (шеринг во внутренних и внешних социальных сетях). Также в фокусе оказалась специфика взаимоотношений «пользователь — трекер», характеризующаяся не только стилями потребления и ролями, ранее описанными в литературе, но и механизмами легитимации контроля и трансформацией использования. Все перечисленные аспекты цифрового селф-трекинга связаны с тем, как пользователи проводят границу между контролем и эмансипацией.
Благодарность. Статья подготовлена в сотрудничестве с Лабораторией геймификации Сбербанка.
Как попрощаться с роботом? Исследование достижения разговорного закрытия
Authors: Егорова Анастасия Игоревна , Кловайт Нильс
Published: March 2021

Разговорные компьютеризированные агенты совершенствуются, развиваются и получают все более широкое распространение в различных сферах жизни. Теперь искусственный интеллект может вести беседу с человеком, используя сложные разговорные приемы и человекоподобные речевые паттерны. Например, Google Duplex, современный голосовой интерфейс, способен автономно выполнять сервисные телефонные звонки таким образом, что собеседнику не удается опознать в нем робота.
С увеличением числа интерактивных коммуникаций человека и компьютера становится очевидной необходимость их изучения: каким образом они происходят, как разрешаются недоразумения и достигаются цели разговора. Статья посвящена эмпирическому изучению взаимодействия между продвинутым разговорным агентом и человеком: в рамках этнометодологии и конверсационного анализа рассмотрены последовательно разворачивающиеся, естественно возникающие речевые практики собеседников, а также порождаемые ими нормативные структуры.
Материалом для анализа послужила аудиозапись телефонной беседы между Google Duplex и человеком-оператором. Исследовано, в частности, как достигается разговорное закрытие — микроструктура, требующая кооперации собеседников в организации чередования реплик. Показано, что завершение беседы происходит за счет постепенного достижения эпистемического равновесия между говорящими, несмотря на интеракционные проблемы, возникающие из-за неуместного просодического контура робота. Подчеркивается связь между институциональным контекстом взаимодействия и роботизированной природой не-человеческого собеседника.
Полученные результаты закладывают основу для дальнейших исследований специфического порядка во взаимодействии человека и робота и способствуют более глубокому пониманию того, как завершается разговор в пограничных случаях.
Благодарности. Статья подготовлена в сотрудничестве с Лабораторией геймификации Сбербанка.
Статья подготовлена в рамках гранта, предоставленного Министерством науки и высшего образования Российской Федерации (№ соглашения о предоставлении гранта: 075-15-2020-908).
Транснационализм в режиме онлайн: миграционные исследования в условиях искусственной социальности
Authors: Трегубова Наталья Дамировна , Ни Максим Леонидович , Китаева Анастасия Александровна
Published: March 2021

Миграция в Россию из стран СНГ — явление, которое ставит перед социальными учеными многочисленные исследовательские проблемы. Разнообразие миграционных потоков и трудности в доступе к «полю» приводят к тому, что различные фрагменты общей картины лишь в той или иной степени согласуются друг с другом. Статья посвящена осмыслению и сравнению нескольких таких фрагментов, полученных в ходе изучения «следов» активности транснациональных мигрантов в интернете. Авторы стремятся ответить на два вопроса: какие стороны миграционных процессов проявляются в собранных данных, а какие — ускользают от исследователей; как полученные результаты и их ограничения соотносятся со свойствами онлайн-среды, организованной деятельностью поисковых, классифицирующих и сортирующих алгоритмов? Эмпирический материал представлен двумя типами онлайн-данных, характеризующих миграцию в Россию из пяти стран (Азербайджана, Казахстана, Кыргызстана, Таджикистана и Узбекистана). Это группы "ВКонтакте" и сайты, найденные с помощью поисковика Google.
Данные были собраны  на шести языках: русском и стран исхода. В качестве методов выступают сетевой анализ,  контент-анализ, а также онлайн-наблюдение. Охарактеризованы процессы сбора и анализа данных и основные результаты исследования для каждого из методов. Результаты соотнесены друг с другом, сделаны выводы о содержательных характеристиках миграционных процессов и о возможностях и ограничениях исследования миграции в онлайн-среде. Авторы описывают «разделение труда» между людьми и алгоритмами на каждом из этапов исследования, выделяют три типа алгоритмов согласно их роли в исследовательском процессе, а также размышляют над тем, как принятые методологические решения повлияли на полученные результаты.
Благодарность. Исследование выполнено при поддержке Российского научного фонда, грант № 18-78-10049.
Development of Telework and its Effects on Japan’s Human Resource Management: Artificial Sociality as a Focus
Authors: Хосогая Нобуко
Published: March 2021

This study explores social and economic activities that promote ‘telework’ and its impact on human resource management in Japan. Telework had not been common in Japan’s workplaces, but the situation suddenly changed when the COVID-19 pandemic began to spread in 2020. The Japanese government issued the declaration of emergency and encouraged the commerce, industry, and other enterprises associations to introduce telework as a ‘new way of working’. To emphasize the characteristics of telework in Japan, the article observers research outcomes published recently. We argue that there is a difference between companies’ size and location and the level of their employees’ skills: telework has already been implemented in some major companies, while there is a marginal development in online work in rural areas and in small and medium-sized enterprises. A hybrid type of face-to-face and online communications emerged as the result. The article finds out the domains where Japanese corporations adopted telework and shows some changes and effects caused by telework in work styles and human resource management. In conclusion, we systematize the data in a respective research realm and classify the elements associated with artificial sociality.
Twelve Theses on Artificial Intelligence and Artificial Sociality
Authors: Резаев Андрей Владимирович
Published: March 2021

The Theses deal with the theoretical foundations and methodological implications for scholarly research that arise from the development and implementation of artificial intelligence (AI) technologies into society’s daily life. The reader is introduced to age-old intellectual debates about AI and recent research concerning human-centered AI, artificial sociality (AS), and online culture. The paper presents the working definition of AI. It claims that AI has to be examined in relation to AS. The paper argues that the human-machine-interdependence is a new reality of artificial sociality. It envisages AI research as multidisciplinary and potentially a-disciplinary scientific activity. The questions the Theses raise: What should we be concerned about as artificial intelligence advances? Can AI technologies solve modern society’s problems and bring human beings to a new level of community and well-being? Are there ‘no-AI areas’ in society? Do human biases and prejudices influence AI technologies? The paper’s essential assertion is that the challenges posed by AI technologies and AS should be addressed apropos three P’s of the capitalist society: private property, profit, price.
Interventions taken on altarpieces throughout their history: a proposal of classification
Authors: Domínguez-Gómez Benjamín
Published: March 2021

The present work describes and organizes a set of causes or deterioration agents to help the description of the state of conservation of altarpieces in polychrome wood. The work addresses the issue of previous interventions, presenting a proposal for classification and terminology that aids the description of damages.
Dialogue facilitation: learning to listen
Authors: Helm Francesca
Published: March 2021

What is it? When we think about dialogue in foreign language teaching
then dyadic interactions, service encounters, or role plays that students
might perform in a ‘communicative’ classroom come to mind. The kind of
dialogue we are talking about here instead is a form of intergroup dialogue,
that is dialogue as a method of communication that can be used to explore
shared issues between groups from diverse backgrounds, dialogue that
highlights the importance of people’s lived experiences. For language
learners, this kind of dialogue is an opportunity to communicate about
themselves and their local identities, interests, and values and learn about
others’. Online dialogue can bring people together to address questions that
transcend their own borders, to explore common subjects but from the
starting point of their locality (Canagarajah, 2004). Intergroup dialogue is
led by trained facilitators who are multi-partial leaders of a group
process. Their role is to create a safe and effective learning environment
and model tools for effective cross-cultural, intergroup dialogue.
Facilitation tools include awareness-raising and addressing group dynamics,
as well as using active listening skills such as summarising, mirroring, and
reframing. Facilitators can bring critical thinking to a conversation by
asking good questions, exploring terminology used, and addressing not only
opinions but also actions and feelings.
Technology-facilitated oral homework: leveraging technology to get
students speaking outside the classroom
Authors: Shanks David
Published: March 2021

What is it? Technology-Facilitated Oral Homework (TFOH) is an umbrella
term for the use of digital technologies that enable learners to record
themselves speaking the target language and submit recordings to their
teachers from outside the formal classroom environment.
Digital corpora: language teaching and learning in the age of big
data
Authors: Absalom Matt
Published: March 2021

What is it? Using corpora to teach languages is nothing new and, while
the term corpus linguistics hails from the 1940s, most language learning
before the 20th century adopted a corpus approach – using a series of texts
in the language under study as a type of corpus on which to base
acquisition. With the advent of widespread computing in the latter half of
the 20th century, corpora began to be digitised, rendering interrogation of
large amounts of data a much simpler and more appealing prospect. Today,
languages in all forms (written, spoken, performed, formal, informal, etc.)
are captured all the time through online and digital platforms, apps, etc.
meaning that the wealth of language data literally at our fingertips is
enormous. This has triggered the development of appropriate tools to explore
these vast data sets.
Digital storytelling: multimodal meaning making
Authors: Buendgens-Kosten Judith
Published: March 2021

What is it? Robin (n.d.) defines digital storytelling as “the practice
of using computer-based tools to tell stories”, stressing that “they all
revolve around the idea of combining the art of telling stories with a
variety of multimedia, including graphics, audio, video, and Web publishing”
(n.p.). Ohler (2009) suggests that “digital storytelling […] uses personal
digital technology to combine a number of media into a coherent narrative”
(p. 15). Very often, digital storytelling involves some kind of video
production (see examples on https://digitalstorytelling.coe.uh.edu).
Including stories and storytelling for language learning barely needs
justification. The ability to tell a story is important in many life
settings, from hanging out with friends to selling a product. But why
digital storytelling? In 1996 The New London Group argued that the
traditional perspective on literacy should be extended to encompass a
broader range of meaning-making practices, including those involving digital
media. In a similar vein, The Douglas Fir Group (2016) argues that “language
learning is semiotic learning” (p. 27), and goes beyond the acquisition of
words and structures. While engaging in digital storytelling, learners
practise the target language in a potentially highly motivating context, use
the target language and other linguistic resources to engage in discussion
and negotiation about the process, and in the production of their stories
(e.g. in a task-based language teaching tradition); also extending their
repertoire of meaning-making resources through practice and reflection – cf.
The New London Group’s (1996) notion of critical framing. Students of many
different levels of proficiency can create engaging digital stories – from
the A1-level primary school student telling a story via the Puppet Pals app,
to the adult language learner engaging in a complex cross-media storytelling
project.
Maestri del dissenso: Leonardo Sciascia e la lezione degli scrittori polacchi
Authors: Schembari Andrea
Published: March 2021

The article focuses on the intertextual presence of Polish writers in Leonardo Sciascia’s work. Highlighted in this context is the possible influence on the Sicilian writer of the peculiar expression of “dissent” by writers such as Sienkiewicz, Brandys and Lec. The article closes with a brief comparison between the protagonists of Il cavaliere e la morte by Sciascia and Odpocznij po biegu (Rest after run) by Terlecki, both restless investigators disobedient to the authorities.
L’Italia di Paweł Hertz
Authors: Płaszczewska Olga
Published: March 2021

The article is an attempt at reconstructing the remarks by Paweł Hertz (essayist, poet, translator, writer and publisher) on Italy and its artistic legacy. A short presentation of the writer is followed by a discussion of his actual journeys in Italy based on the available autobiographical material. Next,there are reflections on Hertz’s interest in Italian literature and European texts about Italy (based on essays and editorial work). Treated as a separate issue is the view of Italian art through the prism of Polish artistic work (the spheres of associations, interference and references) in Hertz’s journalism. Other issues discussed in the article cover poems about Italy, their placeamong the writer’s works and the main threads and motifs. The article’s final notes focus on the observations on the value of Polish reception of Italian cultural legacy and its basic aspects that Hertz regularly emphasised at various stages of his creative life.
Regularizing Effect of Two Hypotheses on the Interplay Between Coefficients in Some Hamilton–Jacobi Equations
Authors: Arcoya David , Boccardo Lucio
Published: March 2021

We study of the regularizing effect of the interaction between the coefficient of the zero-order term and the lower-order term in quasilinear Dirichlet problems whose model is

∫
Ω

M
⁢

(
x
,
u
)

⁢

∇
⁡
u

⋅

∇
⁡
φ

+

∫
Ω

a
⁢

(
x
)

⁢
u
⁢
φ

=

∫
Ω

b
⁢

(
x
)

⁢

|

∇
⁡
u

|

q

⁢
φ

+

∫
Ω

f
⁢

(
x
)

⁢
φ

 

for all 
⁢
φ

∈

W
0

1
,
2

⁢

(
Ω
)

∩

L
∞

⁢

(
Ω
)

,

\int_{\Omega}M(x,u)\nabla u\cdot\nabla\varphi+\int_{\Omega}a(x)u\varphi=\int_{% \Omega}b(x)|\nabla u|^{q}\varphi+\int_{\Omega}f(x)\varphi\quad\text{for all }% \varphi\in W_{0}^{1,2}(\Omega)\cap L^{\infty}(\Omega),

where Ω is a bounded open set of

ℝ
N

{\mathbb{R}^{N}}

,

M
⁢

(
x
,
s
)

{M(x,s)}

is a Carathéodory matrix on

Ω
×
ℝ

{\Omega\times\mathbb{R}}

which is elliptic (that is,

M
⁢

(
x
,
s
)

⁢
ξ

⋅
ξ

≥

α
⁢

|
ξ
|

2

>
0

{M(x,s)\xi\cdot\xi\geq\alpha|\xi|^{2}>0}

for every

(
x
,
s
,
ξ
)

∈

Ω
×
ℝ
×

(

ℝ
N

∖

{
0
}

)

{(x,s,\xi)\in\Omega\times\mathbb{R}\times(\mathbb{R}^{N}\setminus\{0\})}

) and bounded (that is,

|

M
⁢

(
x
,
s
)

|

≤
β

{|M(x,s)|\leq\beta}

for every

(
x
,
s
)

∈

Ω
×
ℝ

{(x,s)\in\Omega\times\mathbb{R}}

),

b
⁢

(
x
)

∈

L

2

2
-
q

⁢

(
Ω
)

{b(x)\in L^{\frac{2}{2-q}}(\Omega)}

,

1
<
q
<
2

{1<q<2}

and

0
≤

a
⁢

(
x
)

∈

L
1

⁢

(
Ω
)

{0\leq a(x)\in L^{1}(\Omega)}

. We prove the existence of a weak solution u belonging to

W
0

1
,
2

⁢

(
Ω
)

{W_{0}^{1,2}(\Omega)}

and to

L
∞

⁢

(
Ω
)

{L^{\infty}(\Omega)}

when either

b
∈

L

2
⁢
m

2
-
q

⁢

(
Ω
)

⁢
 for some 
⁢
m

>

N
2

⁢
 and

\displaystyle b\in L^{\frac{2m}{2-q}}(\Omega)\text{ for some }m>\frac{N}{2}% \text{ and}

(0.1)

∃
Q

>

0
⁢
 such that 
⁢

|

f
⁢

(
x
)

|

≤

Q
⁢
a
⁢

(
x
)

\displaystyle\exists\,Q>0\text{ such that }|f(x)|\leq Qa(x)

or

f
∈

L
m

⁢

(
Ω
)

⁢
 for some 
⁢
m

>

N
2

⁢
 and

\displaystyle f\in L^{m}(\Omega)\text{ for some }m>\frac{N}{2}\text{ and}

(0.2)

∃
R

>

0
⁢
 such that 
⁢

|

b
⁢

(
x
)

|

2

2
-
q

≤

R
⁢
a
⁢

(
x
)

.

\displaystyle\exists\,R>0\text{ such that }|b(x)|^{\frac{2}{2-q}}\leq Ra(x).

In addition, we also prove the existence for every

f
∈

L
1

⁢

(
Ω
)

{f\kern-1.0pt\in\kern-1.0ptL^{1}(\Omega)}

and

b
⁢

(
x
)

∈

L

2

2
-
q

⁢

(
Ω
)

{b(x)\kern-1.0pt\in\kern-1.0ptL^{\frac{2}{2-q}}(\Omega)}

satisfying both conditions (0.1) and (0.2) jointly.
Characteristic cycle and wild ramification for nearby cycles of étale sheaves
Authors: Hu Haoyu , Teyssier Jean-Baptiste
Published: March 2021

In this article,
we give a bound for the wild ramification of the monodromy action on the nearby cycles complex of a locally constant étale sheaf on the generic fiber of a smooth scheme over an equal characteristic trait in terms of Abbes and Saito’s logarithmic ramification filtration. This provides a positive answer to the main conjecture in [24] for smooth morphisms in equal characteristic. We also study the ramification along vertical divisors of étale sheaves on relative curves and abelian schemes over a trait.
Designing Strategic Games with Preestablished Nash Equilibrium through Artificial Inference and Global Learning
Authors: e Oliveira Jr. Hime A.
Published: March 2021

This work presents novel results obtained by the application of global optimization techniques to the design of finite, normal form games with mixed strategies. To that end, the Fuzzy ASA global optimization method is applied to several design examples of strategic games, demonstrating its effectiveness in obtaining payoff functions whose corresponding games present a previously established Nash equilibrium. In other words, the game designer becomes able to choose a convenient Nash equilibrium for a generic finite state strategic game and the proposed method computes payoff functions that will realize the desired equilibrium, making it possible for the players to reach the favorable conditions represented by the chosen equilibrium. Considering that game theory is a very useful approach for modeling interactions between competing agents and Nash equilibrium represents a powerful solution concept, it is natural to infer that the proposed method may be very useful for strategists in general. In summary, it is a genuine instance of artificial inference of payoff functions after a process of global machine learning, applied to their numerical components.
Circular RNA–MicroRNA–MRNA interaction predictions in SARS-CoV-2 infection
Authors: Demirci Yılmaz Mehmet , Saçar Demirci Müşerref Duygu
Published: March 2021

Different types of noncoding RNAs like microRNAs (miRNAs) and circular RNAs (circRNAs) have been shown to take part in various cellular processes including post-transcriptional gene regulation during infection. MiRNAs are expressed by more than 200 organisms ranging from viruses to higher eukaryotes. Since miRNAs seem to be involved in host–pathogen interactions, many studies attempted to identify whether human miRNAs could target severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNAs as an antiviral defence mechanism. In this work, a machine learning based miRNA analysis workflow was developed to predict differential expression patterns of human miRNAs during SARS-CoV-2 infection. In order to obtain the graphical representation of miRNA hairpins, 36 features were defined based on the secondary structures. Moreover, potential targeting interactions between human circRNAs and miRNAs as well as human miRNAs and viral mRNAs were investigated.
Antenatal depression and anxiety during the COVID-19 pandemic: a cross-sectional study in pregnant women from routine health care contact in Greece
Authors: Tsakiridis Ioannis , Dagklis Themistoklis , Mamopoulos Apostolos , Athanasiadis Apostolos , Pearson Rebecca , Papazisis Georgios
Published: March 2021

Objectives

The impact of the COVID-19 pandemic and the public health measures introduced to control it, on mental health, is largely unknown. Research conducted during past epidemics found that pregnant women are more vulnerable psychologically. The aim of this study was to investigate antenatal depressive and anxiety symptoms during this pandemic in Greece.

Methods

All women receiving routine antenatal care, during a three-month period, starting one week after the total lockdown in Greece, in a University department, were asked to fill in two questionnaires, the Edinburg Postnatal Depression Scale (EPDS) and the State-Trait Anxiety Inventory (STAI).

Results

Overall, 505 women (93.3% of the eligible population) agreed to participate. The prevalence of antenatal depression (EPDS score≥13) in the population of the study was 13.5%. Unplanned pregnancy (OR: 2.447; 95% CI: 1.235–4.846), smoking (OR: 2.268; 95% CI: 1.166–4.411) and antenatal anxiety (OR: 5.074; 95% CI: 2.898–8.883) increased the risk of antenatal depression during the COVID-19 pandemic. State (current)-anxiety affected 34.1% of the participants, whereas Trait (lifetime)-anxiety affected 15.8%. The State-anxiety score (median) was significantly higher than the Trait-anxiety (median) (41 vs. 36; p<0.001), revealing an increase in the levels of anxiety in the pandemic, while there was also a positive linear correlation between the two scales (rho=0.592; p<0.001).

Conclusions

The unprecedented situation of the COVID-19 pandemic has increased anxiety, but not depression levels of pregnant women in Greece. Population level interventions to address adverse effects on anxiety status in the initial phases of similar situations may be helpful in the future.
Burkitt-like lymphoma with 11q aberration in a patient with AIDS and a patient without AIDS: Two cases reports and literature review
Authors: Wang Jing , Ma Li , Guo Jianghong , Xi Yanfeng , Xu Enwei
Published: March 2021

Objective

The aim of this study is to evaluate the clinicopathological features and the treatment of the Burkitt-like lymphoma with 11q aberration.

Methods

We reported two patients with Burkitt-like lymphoma with 11q aberration: a 56-year-old man with AIDS (case 1) and a 37-year-old woman (case 2) without AIDS. The biopsy of cervical lymph nodes showed Burkitt-like morphologic and immunophenotypic features. But both of them lack MYC rearrangement and carry an 11q-arm aberration with proximal gains and/or telomeric losses. The diagnosis was confirmed by pathological morphology, immunohistochemistry, and fluorescence in situ hybridization.

Result

After a cycle of R-CTOEP (rituximab, cyclophosphamide, pirarubicin, vincristine, and prednisone) chemotherapy, case 1 refused to chemotherapy and radiotherapy and was followed up for 34 months without recurrence and new focus. Case 2 received R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) for two cycles and achieved PR (partial response). Then, the patient in case 2 received EPOCH (etoposide, prednisone, vincristine, cyclophosphamide, and doxorubicin) for three cycles, and the right cervical mass disappeared. She achieved complete response and was followed up for 16 months without recurrence and new focus.

Conclusion

Burkitt-like lymphoma with 11q abnormalities resembles Burkitt lymphoma morphologically but lacks MYC rearrangement and may have a better prognosis.
Visual Assessment for Detection of Diffusion Depth under External Sulfate Attack in Concrete
Authors: Ou Chiqian , Chen Zheng , Yi Chaofan , Boluk Yaman , Bindiganavile Vivek
Published: March 2021

This paper describes two visual approaches, namely an area ratio method and a grayscale variation method, to evaluate the effective diffusion depth inside cement-based systems when subjected to external sulfate attack. The former is based on the calculation of the amount of pixels within two areas, namely the area of cross section and the undiffused area, while the latter is per the normalized color variation. Three types of binder, all conforming to the Canadian Standards Association (CSA), were employed to produce three batches of cylindrical specimens, which were immersed in a sulfate-rich environment for up to 12 wk. The effective diffusion depths, obtained by the two visual approaches described here, were compared with the sulfate content found experimentally through chemical titration. The results show that the proposed visual methods can capture the effective diffusion depths inside cement-based systems after exposure to sulfate attack. The maximum value ranged from 7.0 to 11.0 mm over 12 wk of exposure. The proposed visual techniques enable a quick assessment to decide whether further repair is warranted.
Corrosion Resistance of Low-Temperature and Conventional Plasma-Nitrided 410S Ferritic-Martensitic Stainless Steels
Authors: Varela L. B. , Umemura M. T. , Calderón-Hernández J. W. , Pinedo C. E. , Kolawole F. O. , Tschiptschin A. P.
Published: March 2021

Low-temperature plasma nitriding (LTPN) of 410S ferritic-martensitic stainless steel was carried out in a 75 % N2 – 25 % H2 gas mixture, at 400°C, for 20 h. Conventional plasma nitriding (CPN) was also carried out in the same atmosphere but at 530°C. The corrosion resistance was assessed by potentiodynamic polarization (PP) testing in 3.5-wt. % NaCl. Measuring of the mass loss was carried out after immersion of the specimens in a 3 % FeCl3 solution during 88 h. To define the sensitivity to intergranular corrosion, the degree of sensitization (DOS) was measured using the double-loop electrochemical PP technique (DL-EPR). DL-EPR results indicated that the potentiodynamic-polarization measurements showed that pitting corrosion resistance of the nitrided samples was enhanced, whereas the weight loss experiments showed that LTPN samples presented a corrosion resistance equal to the untreated samples. The DOS results displayed that the untreated samples were less resistant to intergranular corrosion correlated with the LTPN specimens. On the contrary, the CPN specimens exhibited typical behavior of general corrosion.
Patterns of 50 ETF Options Implied Volatility in China: On Implied Volatility Functions
Authors: Li Pengshi , Lin Yan , Zhong Yuting
Published: March 2021

The aim of this study is to examine the volatility smile based on the European options on Shanghai stock exchange 50 ETF. The data gives evidence of the existence of a well-known U-shaped implied volatility smile for the SSE 50 ETF options market in China. For those near-month options, the implied volatility smirk is also observed. And the implied volatility remains high for the short maturity and decreases as the maturity increases. The patterns of the implied volatility of SSE 50 ETF options indicate that in-the-money options and out-of-the-money options are more expensive relative to at-the-money options. This makes the use of at-the-money implied volatility for pricing out-of- or in-the-money options questionable. In order to investigate the implied volatility, the regression-based implied volatility functions model is considered employed to study the implied volatility in this study as this method is simple and easy to apply in practice. Several classical implied volatility functions are investigated in this paper to find whether some kind of implied volatility functions could lead to more accurate options pricing values. The potential determinants of implied volatility are the degree of moneyness and days left to expiration. The empirical work has been expressed by means of simple ordinary least squares framework. As the study shows, when valuing options, the results of using volatility functions are mixed. For far-month options, using at-the-money implied volatility performs better than other volatility functions in option valuation. For near-month options, the use of volatility functions can improve the valuation accuracy for deep in-the-money options or deep out-of-the-money options. However, no particular implied volatility function performs very well for options of all moneyness level and time to maturity.
FORTALEZAS DENTRO DOS PROCESOS DE MUNDIALIZACIÓN TÉXTIL E RELACIÓN COA RSE A TRAVÉS DUNHA ANÁLISE DELPHI: ÉTICA OU ESTÉTICA
Authors: LUQUE GONZÁLEZ Arturo , HERNÁNDEZ ZUBIZARRET Juan , DE PABLOS HEREDERO Carmen
Published: March 2021

O obxectivo desta investigación é analizar de maneira cualitativa os factores econdicionantes que fan posible, facilitan e fortalecen a articulación do sistema de producióntéxtil a nivel global xerando con isto inmensas posibilidades, moitas delas latentes. Pártese danecesidade de analizar a transversalidade de factores que se requiren para poder fabricar pezastéxtiles a grande escala. Son necesarios altos niveis de innovación e unha gran capacidadecomercial. Recurriuse a diferentes expertos (55) para coñecer a súa visión a través dunhaanálise Delphi e posterior disección analizando as súas fortalezas, estudando as respostas dosdous paneis de expertos por medio dos cuestionarios multidisciplinares con preguntas adesenvolver sobre as hipóteses formuladas.
LOS FOROS EN LA DESAMORTIZACIÓN. ETAPAS DE MENDIZÁBAL Y MADOZ
Authors: CORDERO TORRÓN Xosé
Published: March 2021

El foro fue la forma predominante de propiedad de la tierra en Galicia desde laEdad Media hasta las primeras décadas del siglo XX. En el foro hay una propiedadcompartida, con derechos del receptor de las rentas y otros del pagador de la renta. Al noser abolido en la reforma agraria liberal española hubo de plantearse en ladesamortización su forma de venta, o bien facilitando su adquisición por los pagadores delas rentas, con lo que desaparecería esa propiedad compartida y se transformaría en unapropiedad plena, o bien vendiéndolos en subasta pública al mayor postor, con lo quepersistiría esta forma de propiedad.En la etapa desamortizadora de Mendizábal se optó por la venta en pública subasta, con laconsiguiente persistencia del foro, que tan solo cambió de propietarios, pasando en sumayor parte a manos de la burguesía. Por el contrario, en la etapa desamortizadora deMadoz se facilitó la adquisición de las rentas forales por los campesinos (redención). Laredención de las rentas forales en la desamortización de Madoz supuso el inicio delcambio del régimen de propiedad en Galicia con la transformación de los campesinos enpropietarios plenos de sus tierras.
REVISIÓN DAS PRIMEIRAS EXPERIENCIAS DE RESINACIÓN EN GALICIA (1950-1970)
Authors: MARTÍNEZ CHAMORRO Enrique
Published: March 2021

Neste artigo revísanse as experiencias de resinación desenvolvidas en Galiciadende a década dos 50 aos 60, baseándose en publicacións e no estudo de antigosdocumentos rescatados do Instituto Forestal de Investigacións e Experiencias (IFIE). Osdocumentos recompilados resumen as experiencias de investigación realizadas en Galicia,e aportan unhas primeiras conclusións que permiten discorrer sobre a viabilidadeeconómica da extracción de resina en Galicia, e investigar sobre unha silvicultura quecompatibilizase o aproveitamento principal da madeira coa extracción complementaria deresina do pino pinaster.
TURISMO LITERARIO EN OURENSE: SITUACIÓN EN 2015 E PERSPECTIVAS
Authors: VÁZQUEZ AÑEL ILDA , ARAÚJO VILA NOELIA ARAÚJO VILA
Published: March 2021

Os principais autores da literatura galega naceron en Ourense e moitos dos escenarios nosque se desenvolven as súas obras sitúanse nesa terra. Actualmente, os organismos deturismo consideran que o turismo literario é un novo nicho de mercado. Neste artigo,establécese, en primeiro lugar, un marco teórico no que se definen os conceptos queexisten sobre o turismo e o patrimonio literario. A continuación, tras realizar unha análisecualitativa vía entrevistas en profundidade, móstranse os recursos da provincia, cales seestán a utilizar a nivel turístico, cales non e os que poderían incluírse nunha adecuadaplanificación turística. O propósito é o de verificar se a provincia de Ourense conta cosrecursos necesarios como para chegar a se converter nun destino de turismo literario dereferencia. Finalmente, sinálanse as conclusións que podemos tirar deste labor deinvestigación.
CRECEMENTO E EXPANSIÓN DOS SERVIZOS DE TELECOMUNICACIÓNS EN ARXENTINA DURANTE A POSCONVERTIBILIDADE: CONCENTRACIÓN ECONÓMICA CON DESCENTRALIZACIÓN PRODUTIVA?
Authors: RODRÍGUEZ-MIGLIO Martín
Published: March 2021

Neste traballo analizamos o desempeño económico e laboral recente do sector dosservizos de telecomunicacións en Arxentina, dende a saída da crise de convertibilidade ata2013, a partir da evolución da produción, participación, emprego, remuneracións eprodutividade.
Kalbėtojo funkcinės gramatikos įvadas
Authors: Labutis Vitas
Published: March 2021

Gentinė sąvoka funkcinė gramatika reikalautų pirmiausia aptarti jos formavimąsi ir pobūdį, tačiau į platesnes pozicijas patenka kalbėtojo (teksto kūrėjo) vaidmuo tiek kalbinėje veikloje, tiek aiškinantis kalbos vaidmenį individo ir visuomenės gyvenime, tai daugiausia lemia ir požiūrį į kalbą apskritai, jos esmę ir prigimtį. Todėl pirmiausia reikia trumpai pažvelgti į šias, galima sakyti, amžinas problemas, keliamas nuo antikos laikų iki mūsų dienų.Funkcinės gramatikos sampratai pamatus klojo funkcinio požiūrio į kalbą formavimasis ir neterminologizuotos užuominos apie atskiras kalbos funkcijas.Daugiausia mums rūpi aptarti šių dienų kalbėtojo funkcinės gramatikos teorinius pamatus, išdėstytus S. Diko, A. Sievierskos ir jų sekėjų darbuose. Be to, manome, kad į minėtas teorijas galima integruoti kitų funkcinės ir nefunkcinės gramatikos pakraipų aprašų produktyvias koncepcijas.
Intertekstualumas: referencija, tariamas dialogas ir kitos stilistinės raiškos formos
Authors: Koženiauskienė Regina
Published: March 2021

Straipsnyje aptariami intertekstualumo reiškiniai V. Kudirkos tekstuose apima ne tik grynąsias citatas, arba tiesioginį citavimą (jų rasta mažiausiai), bet ir tokias citavimo formas, kai į savo tekstą autorius įterpia kito teksto fragmentų be kabučių, visai nenurodydamas autoriaus ar apskritai šaltinio. Tai taip pat tokios citavimo formos, kaip žodis ar pasakymas svetima kalba, aliuzija į liaudies dainą, į Šventąjį Raštą, tariamas dialogas, žinomo posakio užuomina, atnaujinta sentencija ir pan.