bluuebunny/crossref_metadata_2025 huggingface dataset:
Простые тайлы и аттракторы
Authors: Zaitseva Tatyana Ivanovna
Published: September 2020

Исследуются самоподобные аттракторы в пространстве $\mathbb{R}^d$, т.е. самоподобные компактные множества, заданные несколькими аффинными операторами с одинаковыми линейными частями. Частный случай аттрактора, когда матрица $M$ линейной части и векторы сдвигов аффинных операторов являются целочисленными, хорошо известен в литературе в связи с многочисленными приложениями в теории всплесков и теории приближений. В этом случае, если аттрактор имеет единичную меру, он называется тайлом. В статье решается задача классификации самоподобных аттракторов и тайлов в случае, когда они являются либо многогранниками, либо объединением конечного числа многогранников. Получено полное описание матриц $M$ и множеств цифр в случае тайлов-параллелепипедов и в случае выпуклых тайлов любой размерности. Доказано, что на двумерной плоскости все многоугольные тайлы (не обязательно выпуклые) исчерпываются параллелограммами. Приведены нетривиальные примеры многомерных тайлов, являющихся объединением конечного числа многогранников, и в случае $d=1$ получена их полная классификация. Указаны приложения к ортонормированным системам Хаара в $\mathbb{R}^d$ и к целочисленным тайлам на прямой.
Библиография: 18 названий.
Критерий равномерной приближаемости индивидуальных функций решениями однородных эллиптических уравнений второго порядка с постоянными комплексными коэффициентами
Authors: Mazalov Maksim Yakovlevich
Published: September 2020

В задаче равномерного приближения функций решениями однородных эллиптических уравнений второго порядка с постоянными комплексными коэффициентами на компактах в $\mathbb R^d$, $d\geqslant3$, получен естественный аналог критерия Витушкина, который формулируется в терминах единственной (скалярной) емкости, связанной с главным коэффициентом ряда Лорана. Схема приближений использует методы теории сингулярных интегралов, в частности конструкции специальных липшицевых поверхностей и мер Карлесона.
Библиография: 23 названия.
Недиагональные части второго момента $L$-функций автоморфных форм
Authors: Frolenkov Dmitry Andreevich
Published: September 2020

Работа посвящена изучению точной формулы, полученной Н. В. Кузнецовым в 1994 г., для второго момента центральных значений $L$-функций, ассоциированных с примитивными параболическими формами уровня $1$ и веса $k\to \infty$, $k \in \mathbb N $. Недиагональные части данной формулы выражаются через свертки функций числа делителей. В работе исследуются главные члены данных сверток и доказывается их сокращение.
Библиография: 8 названий.
Операторные $E$-нормы и их использование
Authors: Shirokov Maksim Evgenievich
Published: September 2020

Рассмотрено семейство эквивалентных норм (названных операторными $E$-нормами) на алгебре $\mathfrak{B}(\mathscr{H})$ всех ограниченных операторов в сепарабельном гильбертовом пространстве $\mathscr{H}$, индуцированных положительным плотно определенным оператором $G$ в $\mathscr{H}$. Выбирая разные операторы $G$, можно получить операторные $E$-нормы, порождающие разные топологии, в частности сильную операторную топологию на ограниченных подмножествах в $\mathfrak{B}(\mathscr{H})$.
Доказана обобщенная версия теоремы Кречмана-Шлингемана-Вернера, которая показывает непрерывность представления Стайнспринга линейных вполне положительных отображений относительно нормы полной ограниченности с энергетическим ограничением на множестве линейных вполне положительных отображений и операторной $E$-нормы на множестве операторов Стайнспринга.
Показано, что операторные $E$-нормы естественно определяются на множестве линейных операторов, ограниченных относительно оператора $\sqrt{G}$, и превращают это множество в банахово пространство. Получены явные соотношения между операторными $E$-нормами и стандартными характеристиками относительно ограниченных операторов. С помощью операторных $E$-норм получены простые оценки сверху и оценки модуля непрерывности важных для приложений функций, зависящих от относительно ограниченных операторов.
Библиография: 29 названий.
Мультипликативные динамические системы в терминах индуцированной динамики
Authors: Pogrebkov Andrei Konstantinovich
Published: September 2020

Пример индуцированной динамики реализован посредством новых мультипликативных детерминантных соотношений, корни которых задают
положения частиц. Приведены как общая схема описания вполне интегрируемой динамической системы, параметризованной произвольной
$(N\times{N})$-матрицей импульсов, так и явная модель, интерполирующая между гиперболическими системами Калоджеро-Мозера и
Рейсенарса-Шнайдера. Детально рассмотрены некоторые специальные случаи этой модели.
О связи категорий представлений суперянгиана специальной
линейной супералгебры Ли и квантовой петлевой супералгебры
Authors: Stukopin Vladimir Alekseevich
Published: September 2020

С использованием подхода Гаутама и Толедано-Ларедо вводятся аналоги категории $\mathfrak O$ для представлений янгиана $Y_\hbar(A(m,n))$ специальной линейной супералгебры Ли и квантовой петлевой супералгебры $U_q(LA(m,n))$. Исследуется связь между ними и сформулирована гипотеза об эквивалентности этих категорий.
Групповые алгебры, действующие на пространстве решений специального дважды конфлюэнтного уравнения Гойна
Authors: Buchstaber Victor Matveevich , Tertychnyi Sergei Ivanovich
Published: September 2020

Исследуются свойства пространства $\boldsymbol{\Omega}$ решений специального дважды конфлюэнтного уравнения Гойна, тесно связанного с моделью сильношунтированного перехода Джозефсона. Описаны операторы, действующие на $\boldsymbol{\Omega}$, и соотношения в порожденной ими алгебре $\mathcal A$ над полем вещественных чисел. Структура алгебры $\mathcal A$ зависит от параметров. Указаны условия, при которых алгебра $\mathcal A$ изоморфна групповой алгебре. Описаны структуры двух соответствующих групп.
Функции Эйри и переход от квазиклассического к осцилляторному приближению для одномерных связанных состояний
Authors: Anikin Anatolii Yur'evich , Dobrokhotov Sergey Yur'evich , Tsvetkova Anna Valerievna
Published: September 2020

Рассматривается одномерный оператор Шредингера с квазиклассическим малым параметром $h$. Показано, что "глобальная" асимптотика его связанных состояний через функцию Эйри работает не только для возбужденных состояний $n\sim 1/h$, но и для слабовозбужденных состояний $n\sim 1/h^\alpha$, $\alpha>0$, причем в примерах соответствующие номера $n$ начинаются с $n=2$ или даже с $n=1$. Доказана близость такой асимптотики к собственной функции приближения гармонического осциллятора.
Числа Гурвица, получающиеся из фейнмановских диаграмм
Authors: Natanzon Sergey Mironovich , Orlov Aleksandr Yur'evich
Published: September 2020

Для получения производящей функции чисел Гурвица самого общего вида, с произвольной базовой поверхностью и с произвольными профилями ветвления, рассмотрена матричная модель, построенная по графу на ориентированной связной поверхности $\Sigma$ без границы. Вершины этого графа, называемые звездами, являются маленькими дисками, а сам граф представляет собой "чистый детский рисунок созвездия" (clean dessins d'enfants). В сегменты границы каждого диска вставлены матрицы-источники. Их произведение определяет матрицу монодромии данной звезды, спектр которой называется спектром звезды. Поверхность $\Sigma$ состоит из склеенных карт, каждая карта отвечает произведению случайных матриц и матриц-источников. За склейки поверхности из набора карт отвечает спаривание Вика, а за вклейку листов Мeбиуса - дополнительная вставка специальной тау-функции в меру интегрирования. Матричный интеграл вычисляется как ряд Фейнмана, в котором роль констант связи играют спектральные данные звезд, а коэффициенты этого ряда и есть числа Гурвица. Они задают число накрытий поверхности $\Sigma$ (или ее расширений до поверхности Клейна, полученных вставкой листов Мeбиуса) при любом заданном наборе профилей ветвления в вершинах графа. Акцент сделан на комбинаторном описании матричного интеграла. Число Гурвица равно числу фейнмановских диаграмм определенного типа, деленному на порядок группы автоморфизмов графа.
New checkable conditions for moment determinacy of probability distributions
Authors: Stoyanov Jordan , Lin G D , Kopanov P
Published: September 2020

Проанализированы некоторые условия, которые играют существенную роль при выяснении, однозначно ли данное вероятностное распределение определяется своими моментами. Мы предлагаем новые условия как для абсолютно непрерывных, так и для дискретных распределений. Используя эти новые, легко проверяемые условия, мы устанавливаем новые результаты или обобщаем уже существующие как в случае Гамбургера (распределения на всей действительной оси), так и в случае Стилтьеса (распределения на положительной полуоси). Специфические примеры иллюстрируют как результаты, так и соотношения между новыми и ранее доступными условиями.
О моментах достижения высоких уровней случайным блужданием в случайной среде
Authors: Afanasyev Valeriy Ivanovich
Published: September 2020

Пусть задана последовательность независимых одинаково распределенных случайных векторов $(p_i,q_i)$, $i\in \mathbf{Z}$, причем п.н. $p_i,q_i>0$ и $p_i+q_i$ $=1$ при $i\in \mathbf{Z}$. Рассматривается случайное блуждание в случайной среде $\{(p_i,q_i), i\in \mathbf{Z}\}$. Предполагается, что $\mathbf{E}\ln (p_0/q_0)=0$ и $0<\mathbf{E}\ln^{2}(q_0/p_0)<+\infty$. Изучаются моменты $T_{n_1},…,T_{n_m}$ достижения возрастающих уровней $n_1,…,n_m$, имеющих порядок $n$. Установлено, что несущее вероятностное пространство можно разбить на такие случайные события (зависящие от $n$), что их вероятности при больших $n$ близки к положительным числам и на каждом из этих событий множество моментов $T_{n_1},…,T_{n_m}$ разбивается на последовательные группы, причем в каждой из групп их элементы имеют одинаковый порядок, а все элементы каждой группы пренебрежимо малы по сравнению со всеми элементами следующей группы.
Структурные условия при прогрессивно добавляемой информации
Authors: Choulli T , Deng Jun
Published: September 2020

Известно, что "локальное" существование оптимального портфеля Марковица, или решение проблемы минимизации локального риска, гарантируется некоторыми специфическими математическими структурами процессов цен базовых активов, называемыми в литературе структурными условиями. В данной работе рассматривается семимартингальная модель рынка с произвольным случайным моментом времени. Этот случайный момент может моделировать момент дефолта фирмы, момент смерти застрахованного лица или момент возникновения некоторого события, которое может повлиять каким-либо образом на модель рынка. При добавлении дополнительной неопределенности в модель рынка посредством введения этого случайного момента структурные условия могут нарушаться, и, следовательно, оптимальный портфель Марковица и другие квадратично оптимальные портфели могут не существовать. Целью работы является исследование влияния этого случайного момента на структурные условия с различных точек зрения. Проведенный анализ позволяет заключить, что, с одной стороны, при некоторых слабых предположениях о модели рынка и случайном моменте структурные условия остаются справедливыми. Более того, приводятся два примера, иллюстрирующие важность этих предположений. С другой стороны, мы описываем модели случайного момента, для которых эти структурные условия сохраняются в любой модели рынка. Эти результаты разработаны отдельно для двух контекстов остановки - включающих один случайный момент и целый класс случайных моментов времени соответственно.
Critical Text Selection for the Elementary Classroom: A Case for Strategically Using the Classroom Library to Open New Spaces for Critical Literacy Engagements
Authors: Iyer Ishwarya N , Ramachandran Sridhar
Published: September 2020

The purpose of this research paper is to encourage school teachers (with an emphasis on elementary teachers) to recognize and explore the literacy potential of their classroom libraries as a powerful critical literacy tool/asset that when designed and utilized strategically has the potential to reposition their classroom pedagogy and curriculum design to be empowering, transformative, inclusive and progressive. To that effect, this paper offers/proposes a framework/model for ‘critical text selection’ that can be readily adapted by teachers across various grade levels within the K-12 classrooms to identify the specific critical literacy needs of their learners (including the learning environment) and then employ their classroom library as a critical literacy tool that facilitates learner empowerment both inside and outside their learning spaces. The paper also presents interested teachers with an alternate way to traverse the proposed framework in the hope that it will provide an impetus to teacher scholars and educators interested in adapting the framework into their classroom to innovatively modify the framework we have presented to better work with their unique curricular structure and design.
Estimation of density and distribution functions of a Burr X distribution
Authors: MAHTO AMULYA KUMAR , TRIPATH YOGESH MANI , DEY SANKU
Published: September 2020

Burr type X distribution is one of the members of the Burr family which was originally derived by Burr (1942) and can be used quite effectively in modelling strength data and also general lifetime data. In this article, we consider efficient estimation of the probability density function (PDF) and cumulative distribution function (CDF) of Burr X distribution. Eight different estimation methods namely maximum likelihood estimation, uniformly minimum variance unbiased estimation, least square estimation, weighted least square estimation, percentile estimation, maximum product estimation, Cremer-von-Mises estimation and Anderson-Darling estimation are considered. Analytic expressions for bias and mean squared error are derived. Monte Carlo simulations are performed to compare the performances of the proposed methods of estimation for both small and large samples. Finally, a real data set has been analyzed for illustrative purposes.
WORKING CAPITAL MANAGEMENT EFFECT ON RETURN ON EQUITY- EVIDENCE FROM LISTED MANUFACTURING FIRMS ON GHANA STOCK EXCHANGE (GSE)
Authors: Asiedu Michael Amoh , Adegbedzi David Kwabla , Oduro Richard , Iddrisu Sulemana
Published: September 2020

Purpose: This paper seeks to assess working capital management effect on Return on Equity (net income (EAITP)/Equity) of listed manufacturing firms on the Ghana Stock Exchange (GSE).

Methodology: The research design employed was descriptive as well as referential analysis. A panel data of thirteen (13) listed manufacturing firms on the Ghana Stock Exchange (GSE) for periods 2010 to 2019 was used for the study. Data which were the audited annual financial reports were accessed from Ghana Stock Exchange Fact Book and the web portals of the firms. Statistical Package for Social Sciences (SPSS, version 20) and Microsoft Excel were used in data analyses and presentations. Descriptive statistics was used to summarize the data in terms of measures of central tendency (mean), measures of dispersion (standard deviation) as well as minimum and maximum values. Pearson’s Product-Moment Correlation and Ordinary Least Square (OLS) multiple regression techniques were employed to establish the relationship and effect of working capital management on Return on Equity respectively.   

Findings: Results showed that INV has statistically significant and negative correlation with ROE(r= -0.287 and p<0.05) as AR and ROE have statistically significant and negative correlation(r= -0.287, p<0.05). AP also has statistically significant and negative association with ROE(r= -0.407, p<0.05). The regression analysis showed that INV has a negative (β = -.01) and significant (p<0.05) effect on ROE as AR also has a negative (β = -.002) and significant (p<0.05) effect on ROE. Again, AP has negative (β = -.002) but insignificant (p>0.05) effect on ROE as CCC has statistically significant (p<0.05> and negative (-0.021) effect on ROE. Also, R and R-Sq. showed 59.5 % and 35.4% respectively, implying that the model is fit for predicting the criterion variable at any given levels of the predictor variables.

Contribution to theory, practice and Policy: This work adds to working capital management literature by adopting ROE (Net Income (EAITP)/Total Equity) that responds to call by CFI (2015), and therefore addresses the pitfalls in prior studies. It is therefore a sine qua non for management, policy makers and practitioners to fashion strategies to ensure that working capital is managed to the core by reducing number of days inventory, number of days accounts receivable, number of days accounts payables and cash conversion cycle in order to create wealth for shareholders as well as expand operation of the firms.
A Review on the Methods of Speed Control of Brushless D.C. Motor - A Comparative Study
Authors: Gowda Devendra , Dharme Pratik , Todkar Sanjeev , Desai Chandan , Patil Tejas , Khot Sushant
Published: September 2020

In this paper detailed working of BLDC motor is shown. BLDC motor has many applications, hence there are various methods of their control, these various methods of speed control are explained below. General methods like PI, PID don’t have expected results for control of speed. Fuzzy control and neuro-fuzzy control system give far better output than these methods. In this paper we analyze the speed output with different method.
A Study of the Online Impulse Buying Behaviour during COVID-19 Pandemic
Authors: Thakur Chandan , Diwekar Ashwini , Reddy B. Jagadeshwar , Gajjala Niteesh
Published: September 2020

Impulse buying is an important element in e-commerce. Now-a-days impulse buying has become so common that it constitutes approximately 50 percent of total spending by customers. Technology provides endless opportunities to customers for impulse buying by providing faster, smarter and convenient buying options. People are forced to stay indoors due to pandemic and as a consequence they spend more time on internet. This research paper investigates the phenomenon of impulse buying behaviour during pandemic as well as the factors behind the impulse buying behaviour. It brings insight regarding online impulse buying, impact of advertisements on impulse buying and price concerns during impulse buying. After a thorough literature review to explore key factors related to impulse buying, a survey has been conducted to record the data of various customers involved in impulse buying. After analysing the data, conclusions have been drawn with respect to various aspects of impulse buying.
Análise da Auditoria Interna aos Princípios do Processo de Produção de Informações Estratégicas
Authors: Brandes Gabriela Sofia Belo , Da Cruz Cunha José Humberto , Araújo Júnior Rogério Henrique de , Resende Alex Laquis
Published: September 2020

Objetivo: Verificar o grau de aderência da auditoria interna aos PPIE – Princípios de Produção de Informações Estratégicas, método proposto por Washington Platt.Método: A abordagem é de uma pesquisa-ação, de natureza aplicada, visto que se estabeleceu uma relação entre o conhecimento e ação, implicada na situação investigada frente a realidade; bibliográfico com intuito de pesquisar a respeito do modelo de Platt (1974), e documental focado no exame das normas do IPPF. Ainda, usou-se do levantamento com entrevista para investigar as etapas da produção de informação estratégicas na prática da auditoria.Resultado: Os resultados da pesquisa indicam que as etapas práticas da auditoria interna são aderentes ao modelo de criação de informação estratégica utilizado.Conclusões: Concluiu-se que a auditoria interna, na prática, é um processo de produção de informação estratégica.
Apresentação
Authors: Butturi Junior Atilio
Published: September 2020

Apresentação v.17, n.2, 2020,
Imaginário e identificação no discurso sobre Donald Trump: análise do funcionamento de capas das revistas Exame e Istoé
Authors: Tfouni Fábio Elias Verdiani , Grigoletto Evandra
Published: September 2020

O objetivo do presente trabalho, filiado aos princípios teóricos e metodológicos da Análise do Discurso Pecheutiana, em uma interface com a psicanálise Freudo-Lacaniana, é o de analisar a imagem sobre Donald Trump em revistas brasileiras de grande circulação. Mais especificamente, tomando como materialidade a capa de duas revistas (Exame e IstoÉ), buscamos compreender a tomada de posição das revistas em relação a Trump, a partir da análise da imagem projetada ao Presidente Americano e das relações de (contra)identificação. Isso nos permitiu concluir que a posição ideológico-discursiva com as quais os sujeito-jornalistas se identificam é contrária à posição assumida por Trump. Tal conclusão é corroborada pela imagem dominante, atribuída a ele pelas revistas, qual seja: a de um político de extrema direita, um “Hitler americano”, capaz de destruir as ideias da política e economia liberais.
Identifying forecast uncertainties for biogenic gases in the Po valley related to model configuration in EURAD-IM during PEGASOS 2012
Authors: Vogel Annika , Elbern Hendrik
Published: September 2020

Abstract. Forecasts of biogenic trace gases in the planetary boundary layer (PBL) are highly affected by simulated emission- and transport processes. The Po region during the PEGASOS campaign in summer 2012 provides challenging, yet common conditions for simulating biogenic gases in the PBL. As a precursory step to a comprehensive model evaluation and uncertainty estimation, this study identifies and quantifies principal sources of forecasts uncertainties induced by various model configurations. The investigation is based on the EURAD-IM chemistry transport model employing the MEGAN 2.1 biogenic emission module and RACM-MIM as gas phase chemistry mechanism. Isoprene and a composite of higher aldehydes are selected to demonstrate similarities and differences between these compounds. Two major sources of forecast uncertainties are identified in this study. Firstly, biogenic emissions appear to be exceptionally sensitive to land surface properties inducing total variations of local concentrations of up to one order of magnitude. Moreover, these sensitivities are found to be highly similar for different gases and almost constant during the campaign, varying only diurnally. Secondly, the model configuration also highly influences regional flow patterns with significant effects on pollutant transport and mixing. As a result, surface concentrations of biogenic trace gases show large sensitivities to model configurations in this study. While isoprene concentrations are mainly sensitive to model configurations affecting the emission process, aldehydes show varying sensitivities related to both, biogenic emissions and transport processes. Especially in areas with small scale emission patterns, changes in the model configuration are able to induce significantly different local concentrations. This effect was corroborated by diverging source regions of an exemplary airmass and thus applies also to non biogenic gases. The amount and complexity of sensitivities found in this study demonstrate the need to consider forecast uncertainties of chemical transport models with special focus on biogenic emissions and pollutant transport.
Increased Primary and Secondary H2SO4 Showing the Opposing Roles in SOA Formation from Ethyl Methacrylate Ozonolysis
Authors: Zhang Peng , Chen Tianzeng , Liu Jun , Xu Guangyan , Ma Qingxin , Chu Biwu , Sun Wanqi , He Hong
Published: September 2020

Abstract. Stressed plants and polymer production can emit many unsaturated volatile organic esters (UVOEs). However, secondary organic aerosol (SOA) formation of UVOEs remain unclear, especially under complex ambient conditions. In this study, we mainly investigated ethyl methacrylate (EM) ozonolysis. Results showed that a substantial increase in secondary H2SO4 particles promoted SOA formation with increasing SO2. An important reason was that the homogeneous nucleation of more H2SO4 at high SO2 level provided greater surface area and volume for SOA condensation. However, increased primary H2SO4 with seed acidity enhanced EM uptake, but reduced SOA formation. This was ascribed to the fact that the ozonolysis of more adsorbed EM was hampered with the formation of surface H2SO4 at higher particle acidity. Moreover, the increase in secondary H2SO4 particle via homogeneous nucleation favored to the oligomerization of oxidation products, whereas the increasing of primary H2SO4 with acidity in the presence of seed tended to promote the functionalization conversion products. This study indicated that the role of increased H2SO4 to EM-derived SOA maybe not the same under different ambient conditions, which helps to advance our understanding of the complicated roles of H2SO4 in the formation of EM-derived SOA.
Removing spurious inertial instability signals from gravity wave temperature perturbations using spectral filtering methods
Authors: Strube Cornelia , Ern Manfred , Preusse Peter , Riese Martin
Published: September 2020

Abstract. Gravity waves are important drivers of dynamic processes in particular in the middle atmosphere. To analyse atmospheric data for gravity wave signals, it is essential to separate gravity wave perturbations from atmospheric variability due to other dynamic processes. Common methods to separate small-scale gravity wave signals from a large-scale background are separation methods depending on filters in either the horizontal or vertical wavelength domain. However, gravity waves are not the only process that could lead to small-scale perturbations in the atmosphere. Recently, concerns have been raised that vertical wavelength filtering can lead to misinterpretation of other wave-like perturbations, such as inertial instability effects, as gravity wave perturbations. In this paper we assess the ability of different spectral background removal approaches to separate gravity waves and inertial instabilities using artificial inertial instability perturbations, global model data and satellite observations. We investigate a horizontal background removal (which applies a zonal wavenumber filter with additional smoothing of the spectral components in meridional and vertical direction), a sophisticated filter based on 2D time–longitude spectral analysis (see Ern et al., 2011) and a vertical wavelength Butterworth filter. Critical thresholds for the vertical wavelength and zonal wavenumber are analysed. Vertical filtering has to cut deep into the gravity wave spectrum in order to remove inertial instability remnants from the perturbations (down to 6 km cutoff wavelength). Horizontal filtering, however, removes inertial instability remnants in global model data at wavenumbers far lower than the typical gravity wave scales for the case we investigated. Specifically, a cutoff zonal wavenumber of 6 in the stratosphere is sufficient to eliminate inertial instability structures. Furthermore, we show that for infrared limb-sounding satellite profiles it is possible as well to effectively separate perturbations of inertial instabilities from those of gravity waves using a cutoff zonal wavenumber of 6. We generalize the findings of our case study by examining a 1-year time series of SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) data.
Investigating Financial Statement Fraud in Ghana Using Beneish M-Score: A Case of Listed Companies on the Ghana Stock Exchange
Authors: Adu-Gyamfi Mike
Published: September 2020

This quantitative research was conducted to detect the possibility of earnings manipulation by listed companies on the Ghana Stock Exchange, determine the relationship between company size and earnings manipulation and find out the existence of a correlation between share price and earnings manipulation. Using 22 companies out of a total of 41 listed companies, financial data gathered from published financial statements on the companies’ websites, Ghana Stock Exchange website and Annual Report Ghana website were examined from 2011 to 2016. Applying Beneish M-score model for the period 2011-2016, it was found that 26.2% of the sample size on the average were involved in creative accounting. The study also found that 28.4% of the small companies on the average were involved in earnings manipulation during the period 2011-2016 as compared to 25.4% of the big companies. However, the Mann-Whitney U test conducted revealed that there is no statistically significant difference between the level of earnings manipulation and company size. Spearman’s correlation analysis was conducted, firstly, on the entire sample and separately on the small and big companies. The results of the analysis showed that earnings manipulation and share price, statistically, were not significantly correlated. The quantitative research provides an insight into the level of earnings management amongst listed companies in Ghana and the appropriateness of the M-score model in detecting earnings manipulation. The evidence of incidence of creative accounting amongst the sampled companies is an indication of the need for more stringent measures to curb such practice to ensure the stability of the Ghanaian stock market and protect investor interest.
Community Participation in Development Projects: A Study of Ajumako-Enyan-Essiam District in Ghana
Authors: Sakyi-Darko Michael , Mensah Ronald Osei
Published: September 2020

This study accessed the extent of community participation in development projects within the Ajumako-Enyan-Essiam District of Ghana. Development projects selected were water systems, market structures and KVIP’s. This was a descriptive survey research design which used semi-structured interviews, a focus group discussion guide and observation checklist to gather data from 72 respondents from six selected communities within the districts. The findings indicate that both Development Agencies and beneficiaries ‘participated’ in the development projects as a means to an end. The end to the Development Agents was to meet externally induced welfare targets and to the communities, the end being meeting immediate socio-economic deficiencies. Both choose a course of action that best suited their interest, as explained by the rational choice theory. Participation in the district is functional. It is recommended that the District Assembly should sensitize the communities on their roles as channels in the decentralization process to encourage them to fully participate in the development process. Additionally, development Agents empower the communities to make project sustainability a possibility.
Single-Incision Laparoscopic Deroofing and Omentalization of a Cystic Renal Adenoma in a Dog
Authors: Patel Nikesh J. , Brady Rachel , Scharf Valery F.
Published: September 2020

A 12 yr old 13.5 kg male castrated Pembroke Welsh corgi was presented for evaluation of a suspected renal cyst following multiple episodes of lethargy and abdominal pain. Abdominal imaging revealed a large, thin-walled, hypoechoic cystic lesion associated with the cranial pole of the left kidney and a second smaller cystic lesion on the caudal pole. The larger cystic lesion was repeatedly drained percutaneously, but the lesion returned to initial size and clinical signs returned within weeks. Percutaneous ethanol sclerotherapy achieved only transient improvement in lesion size and abdominal discomfort. Laparoscopic deroofing and omentalization of the larger left renal cystic lesion was performed. The resected cystic wall was histopathologically consistent with a renal adenoma. Abdominal ultrasonography performed 1 mo postoperatively found no recurrence of the cystic renal adenoma. Repeated ultrasonography at 3 mo postoperatively detected a small cystic lesion at the cranial pole of the left kidney, which remained static in appearance at 11 and 18 mo postoperatively. During all follow-up visits, the dog was reported to be doing well with no recurrence of clinical signs. Renal cysts causing clinical signs and renal adenomas are rare in veterinary medicine; laparoscopic deroofing and omentalization provides a minimally invasive treatment approach.
La importancia de publicar investigaciones científicas en El Salvador
Authors: Uees Editorial
Published: September 2020

El informe Evolución de la Investigación y Producción Científica del sector de Educación Superior enEl Salvador 2008-2015 realizado por el Ministeriode Educación de El Salvador en colaboracióncon el Nuevo Consejo Nacional de Cienciay Tecnología (N-Conacyt) muestra una radiografía de la participación de Institucionesde Educación Superior (IES) en la producción y difusión científica que− según este informe−debería tener un crecimiento exponencial.
Diseño e implementación de un sistema para almacenamiento y visualización de imágenes radiológicas
Authors: Cornejo Hernández Saúl Antonio , Ventura Aguilar Yancy Steffany , Campos Rosa Jorge Alberto
Published: September 2020

En este artículo se describe el funcionamiento de un sistema que almacene imágenes radiológicas en la Clínica Shalom, diseñado por un equipo de investigadores de la Facultad de Ingenierías como proyecto de innovación que permita la visualización y portabilidad de las imágenes en diferentes dispositivos móviles para un rápido análisis. Además, minimizar los tiempos en la atención,la presentación de diagnóstico y tratamiento médico de los pacientes. Con el desarrollo de este proyecto la Clínica Shalom no debería incurrir en gastos cuando gestione la compra de insumos para revelado de la impresión de las placas radiológicas, tampoco tendría que manipular materiales químicos que dañan el medio ambiente. Se realizó un estudio investigativo exploratorio, tipode innovación incremental que añade mejoras a un producto existente. (Rodríguez, et al., 2013). En la metodología para la formulación de la propuesta de solución se entrevistó a las entidades relacionadas (técnico en informática y médicos de la clínica) que se harían cargo del proceso deproducción y análisis de  placas radiológicas. Se determinaron dos tipos de variables: independiente y dependiente; la variable independiente-causa, se realizó como proceso de Implementación de Servidores PACS1; la variables dependientes-efectos, como almacenamiento de imágenes en un servidor propiedad de la clínica Shalom. La segunda variable fue la disminución en factor tiempo para la visualización y generación de undiagnóstico clínico.
Factors Affecting Dental Services Quality in the Private Sector From Patients’ Perspective in Amman-Jordan
Authors: M. Saadeh Jihad , A. Tarawneh Mohammad
Published: September 2020

Introduction: The world has been rapidly evolving with a high pace towards clients’ satisfaction. Service providers strive for clients’ satisfaction as it has become more obvious that this is the key to maintain a growing and successful businessObjectives: The objective of this study is to investigate the relationship between the five dimensions of quality of patients’ satisfaction and the quality of dental services.Materials & Methods: Several databases were searched for relevant articles and research papers with an objective revolving around the factors affecting client satisfaction from dental services provided at either a certain clinic, group of clinics, or had a population of a whole city. The articles and research papers covered parts of Eastern Asia, the Middle East, South/North America, and Europe.Multiple regression analysis was performed to study this relationship. The results showed significant relationship between each of the five dimensions of quality with the following weights: Tangibility = 17.7%, Empathy= 17.2%, Responsiveness= 15.6%, Assurance= 14.7% and Reliability= 5.8%. Overall R square = 75.3% adjusted R square is 73.2% with R = 0.868.Conclusion: The unique aspect of this study, which makes it different from other studies, is that it will not only evaluate the dental service received by patients but will also clearly state how a patient defines a good quality dental service according to their priorities to help in reaching of mutual understanding and definition of a good quality service provider.The multiple regression models showed significant relationship between the five dimensions of quality and patients’ satisfaction
Productivity and Quality of Diverse Ripe Pasture Grass Fodder Depends on the Method of Soil Cultivation
Authors: Karbivska Uliana , Kurgak Volodymyr , Gamayunova Valentyna , Butenko Andrii , Malynka Lesia , Kovalenko Ihor , Onychko Viktor , Masyk Ihor , Chyrva Andrii , Zakharchenko Elina , Tkachenko Oleksandr , Pshychenko Olena
Published: September 2020

In this study, we investigated the influence of soil cultivation method on the productivity and quality of pasture grass fodder. We found that increasing the depth of cultivation from 8–10 cm to 20–22 cm (using surface tillage with disk implements) improved the productivity of all the grass species studied – Phleum pratense, Lolium perenne, Festuca orientalis, Dactylis glomerata, Bromus inermis, Phalaris arundinacea, Festuca rubra – by an average of 2%–3% at an LSD05 of 0.30 t ha−1, over a period of 3 years. On average, the most important factor influencing the production of 1 ha of dry mass appeared to be the species of grass, accounting for 57% of the variation. The depth of soil tillage was also important, accounting for 43% of the variation. Of all the species studied, the highest productivity was exhibited by Lolium perenne (0.35 t ha−1 of dry weight). Increasing the soil cultivation depth led to an increase in the content of crude protein and albumen (0.9%–1.1%). According to the analysis of organic matter content and digestibility of the fodder, across the different depths of soil cultivation, the early ripening species Dactylis glomerata, and the average ripening species Festuca orientalis, Lolium perenne, and Bromus inermis, performed best. Considering the different depths of soil cultivation, Lolium perenne [154 g; surface tillage (disking) 8–10 cm] and Festuca orientalis (152 g; ploughing 20–22 cm) provided the most fodder units with digestible protein.
Investigations of corrosion behaviour
of SnSb12Cu6Pb alloy in 0.1M H2SO4
and 0.5M NaCl solution
Authors: Hrabia-Wiśnios J. , Leszczyńska-Madej B. , Kowalik R.
Published: September 2020

Purpose: The results presented the microstructure and corrosive behavior of SnSb12Cu6Pb
alloy (B82) in H2SO4 aqueous solution and NaCl aqueous solution.
Design/methodology/approach: The electrochemical corrosion has been investigated
in two different aqueous solutions: 0.1M sulfuric acid (H2SO4) and 0.5M sodium chloride
(NaCl) solution measuring of potential changes relative to immersion time and conducting
mass loss test. Microscopic investigations before and after corrosion tests were made using
scanning electron microscopy.
Findings: The obtained results indicate very good corrosion resistance of the alloy tested
in NaCl solution. Corrosion progresses faster in a sulfuric acid aqueous solution compared
to sodium chloride aqueous solution. Also, it was found that the dominant mechanism
of corrosion degradation in both solutions is selective corrosion which is a particularly
undesirable type of corrosion because it involves the loss of one alloying component and
the formation of porous structure on the alloy surface.
Research limitations/implications: The aqueous solutions used in this study are not
a natural working environment of the bearing. However, a comparison of acidic and neutral
solutions allows explaining the corrosion behavior of tin babbitts due to contaminants of
oil lubricants. Further research should be conducted in more aggressive environments
characteristic of industrial conditions.
Practical implications: One of the important properties of bearing alloys are corrosion
resistance. Corrosion properties are extremely important for the transport and storage
of metallic components before they are used. Also, the working environment can have
a destructive effect on the properties of the materials used. Industry environment,
aging stagnant oil, and some acids may lead to selective corrosion of the tin, copper,
lead, or antimony components and leaving a rough and weakened the babbitt surface.
Electrochemical corrosion can contribute to the acceleration of bearing wear and consequent
to bearing damage.
Originality/value: Studies of the corrosion of tin-babbitt bearings are not extensive in
the literature due to rare tin corrosion. This study could be an important complement to
knowledge about the corrosion behavior of tin-based bearing alloys.
An Interview with Todd Solondz
Authors: Murphet Julian
Published: September 2020

This chapter is a transcript of an interview with Todd Solondz. It mainly discusses his filmography and his career as well as his personal thoughts on the art of cinema. A major running theme throughout this interview is the consistency inherent in his work. The topography, character, and temporality of his films articulate a singular, if not always totally consistent world. The chapter delves into why that is and how Solondz approaches his work to achieve—whether deliberately or otherwise—such effects in his films. In the end, Solondz states that his engagement with his audience is one of invalidation, in other words, to encourage his audience “to question, to analyze, to open up.”
Epilogue
Authors: McKay David O.
Published: September 2020

Abstract and Keywords to be supplied.
Locating Cancer
Authors: León-Sanz Pilar
Published: September 2020

This essay focuses on studies developed in the field of psychosomatic medicine that connected cancer with patients’ body image and fantasies (1950-1959). At this time, cancer began to acquire more medical and social visibility, and psychosomatic studies pointed to connections between cancer and emotional and personality factors. The chapter shows that scientists such as Seymour Fisher or Sidney E. Cleveland established that there are many aspects of the individual’s body that acquire psychological significance. The analysis also suggests that the body-image variations between individuals depended on the cancer localization, as well as differences in personality. By looking at these sources, this chapter argues that emotions and bodily fantasies became performative forces in the field of psychosomatic medicine.
Fearful Female Bodies
Authors: Martín-Moruno Dolores
Published: September 2020

By combining emotion and gender histories, this study analyzes the affective economy of fear ruling during the Paris Commune and its aftermath. This focus allows us to examine the creation of female collectives, such as the pétroleuses: the revolutionary women accused of having organized the fires that devastated the French capital during the bloody week. Although there was no evidence about their involvement in this episode, they became the evilest enemy in the eye of the public. Taking Louise Michel’s testimonies as starting point, this chapter analyses abjection as a practice that situated the female revolutionary body outside the borders of civilization. A comparison of past and present terrorist bodies allows us to think about the powers of fear for the creation of fictional enemies.
Introduction
Authors: Butler Melvin L.
Published: September 2020

This chapter provides an overview of the book’s main objectives and arguments. It gives definitions of key terms such as gospel music, worship, and Pentecostalism, while describing the cultural, spiritual, and migratory flows that are operative within and beyond Jamaican Pentecostal congregations. Described as significant boundary-crossing endeavors, these flows are related to controversies surrounding Jamaican religious and national identity. The chapter explains that the transmission of gospel music from the United States shapes the ways in which Pentecostal Christians in Jamaica characterize the genre. The history of Pentecostalism in Jamaica is also discussed in connection with influential social and religious developments in the United States and England. This chapter also outlines the research methodology and theoretical framework that inform the author’s treatment of the topic and provides brief descriptions of the subsequent chapters.
Perfecting Holiness
Authors: Butler Melvin L.
Published: September 2020

This chapter examines social and sonic constructions of holiness as expressed by Pastor Philips and the members of Mercy Tabernacle in Liliput. It argues that these constructions reinforce distinctions between piety and pleasure that, in turn, influence the kinds of musical activities Pentecostals deem appropriate. The conduct and clothing of women is often the topic of concern by church leaders who view music making as a significant part of a broader holiness aesthetic. Styles of music making are strongly tied to standards of holiness and a cultural politics of pleasure, which govern ways of dressing and behaving in society. Moreover, perceptions of musical holiness influence the types of flow that are operative in Pentecostal congregations as members position themselves before God and country as exemplars of authentic Christianity in Jamaica.
Eugénie Éboué-Tell and Jane Vialle
Authors: Joseph-Gabriel Annette K.
Published: September 2020

Chapter three functions as a bridge between the first two chapters on locating possibilities for liberation in the grey area of Antillean departmentalization, and the next two chapters on African women’s demands for independence. It examines the ways in which Eugénie Éboué-Tell’s and Jane Vialle’s work in the French senate connected the anticolonial activism of women in the Antilles and French Equatorial Africa, and extended this activism beyond the borders of imperial France to include the United States. Both women forged transnational black feminist networks and thus claimed multiple communities and political affiliations that often defied imperial and national borders.
Aoua Kéita
Authors: Joseph-Gabriel Annette K.
Published: September 2020

Aoua Kéita’s autobiography Femme d’Afrique: La vie d’Aoua Kéita racontée par elle-même expands the scholarship on African women’s feminist networks to include collective resistance and community formation by women in rural areas. Reading Kéita’s autobiography alongside works by Ousmane Sembène highlights rural women’s roles at the forefront of anticolonial struggle in West Africa and their strategies of resistance that hinged primarily on transgressive mobility. Through marches, protests and occupying space, women in rural communities worked to reverse colonial dispossession of land and the erasure of their contributions to public life.
Epilogue
Authors: Joseph-Gabriel Annette K.
Published: September 2020

The conclusion considers works by a subsequent generation of writers and their visions for women’s political organizing and intellectual production. AWA: La Revue de la femme noire, a woman-centered journal published in the 1960s and 70s, offers a site for examining the ruptures and continuities in black women’s formation of transnational feminist networks and their engagement with anti-imperialist movements after independence. AWA’s definition of black womanhood as a transnational identity echoes the feminist politics of earlier works and raises questions about the representation of black women’s bodies that add new dimensions to the writings of their predecessors.
The Reporter and His Industry
Authors: Wells Rob
Published: September 2020

The life of veteran financial journalist Stan Strachan and his newspaper, the National Thrift News both traced the broader arc of the savings-and-loan industry from the mid-1970s through the early 1990s; the industry prospered due to a post-World War II housing boom but foundered in the mid-1970s as a result of regulatory strictures and rising inflation; federal deregulatory policies used to revive the industry backfired, triggering the collapse of thousands of thrifts. The roots of Strachan’s traditional journalistic training and idealization of U.S. society were central to his reputation for journalistic independence. He used his close contact with the industry to advance the newspaper’s journalism; insider knowledge allowed reporters to break important stories.