bluuebunny/crossref_metadata_2025 huggingface dataset:
PHYTOCHEMICAL CONSTITUENTS, PHENOLIC CONTENTS, AND ANTIOXIDANT ACTIVITY OF CRATAEGUS AZAROLUS EXTRACTS
Authors: Amina Boudjada , Ahmed Touil , Hamdi Bendif , Chawki Bensouici , Salah Rhouati
Published: April 2018

Objective: The aim of this study was the isolation and identification of secondary metabolites from Crataegus azarolus (L.) and the antioxidant evaluation of its extracts and compounds.Methods: The air-dried powdered parts of the plant were extracted with 70% methanol and fractionated by chloroform, ethyl acetate, and n-butanol. The n-butanol extract was separated using polyamide SC6 column and silica gel TLC. In addition, a fraction of silica gel column of the CHCl3 extract was analyzed by gas chromatography–mass spectrometer (GC–MS). The total phenolic and total flavonoid contents of CHCl3 and n-butanol extracts were estimated. Furthermore, the antioxidant activities of CHCl3, n-butanol extracts, and two flavonoids were evaluated according to five different methods.Results: Eight compounds were identified in CHCl3 and n-butanol extracts, among them, five volatile compounds identified by GC–MS for the 1st time from the species, as well as three known flavonol glycosides identified by spectral analysis (ultraviolet,1H-nuclear magnetic resonance [NMR], and13C-NMR) and by comparison with literature data. The n-butanol extract showed the higher content of polyphenols (307.33 ± 2.33 mg (gallic acid equivalents)/g extract) and flavonoids (143.0 ± 2.12 mg QE/g extract) and it proves the highest antioxidant activity with all assays used.Conclusion: Five volatile compounds were identified for the 1st time from the C. azarolus and the antioxidant potential of plant extracts was measured using five different methods.
STUDY OF ANTIMICROBIAL PROTEIN FROM THE HEMOLYMPH OF FRESHWATER CRAB OZIOTELPHUSA SENEX SENEX AND ITS EFFICACY AGAINST THE HUMAN PATHOGENS
Authors: D Sumalatha , Tg Nithya , J Jayanthi , Mg Ragunathan
Published: April 2018

Objective: The study was done to isolate the antimicrobial protein from the freshwater crab.Methods: Antimicrobial protein was purified by sequential step of ammonium sulfate precipitation, dialysis, ion exchange chromatography, and fast protein liquid chromatography. The apparent molecular mass was determined by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and matrix-assisted laser desorption ionization-mass spectrometry (MALDI-MS/MS). Primary structure analysis was done from MASCOT search engine. The antimicrobial activity of the protein was done using well diffusion method against Gram-positive and Gram-negative bacteria.Results: The molecular mass of antimicrobial protein was determined to be 33KDa by SDS-PAGE and MALDI-MS/MS. The antimicrobial protein contains eight peptides which were determined by MASCOT search engine. The protein exhibited antimicrobial activity both for Gram-positive and Gram-negative bacteria.Conclusion: The results could provide information for investigating the antimicrobial protein derived from the hemolymph of the freshwater crab Oziotelphusa senex senex.
QUALITY OF LIFE OF PATIENTS UNDERGOING HEMODIALYSIS
Authors: P Thenmozhi
Published: April 2018

Objective: The objective of the study was to assess the quality of life (QOL) of patients undergoing hemodialysis (HD). The QOL of HD patients was found to be considerably impaired when compared to that of healthy individuals of the general population. The careful assessment of QOL helps to guide and achieve medical management to optimize their health experience.Methods: Cross-sectional research design was adopted with 130 samples who met the inclusion criteria to conduct the study in the dialysis unit, India. The instrument used for the study was to collect the data are demographic variable and kidney disease QOL - short form version 1.3 scale.Results: The mean total score of QOL was 48.73±22.65, the highest score was for dialysis staff encouragement scale (84.04±14.89) followed by social support scale (80.38±20.38) and quality of social interaction (71.52±18.74). However, role limitation caused by physical health problems, role limitation caused by emotional health, and burden of kidney disease scales yielded the lowest scores (22.12±18.05, 26.92±24.15, and 38.03±12.81, respectively).Conclusion: The present study findings concluded that patients on HD were not having adequate QOL in all domains except patient satisfaction due to changes in the physiological, chemical changes occur in the kidney.
INTRAUTERINE GROWTH CHARTS FOR FETAL BIPARIETAL DIAMETER BETWEEN 12 AND 40 WEEKS OF PREGNANCY AND ITS CORRELATION WITH GESTATIONAL AGE
Authors: Hebbar Shripad , Khuraijam Tracy
Published: April 2018

Objective: The objective of this study is to derive intrauterine growth charts for fetal biparietal diameter (BPD) at weekly intervals between 12 and 40 weeks of gestation and to correlate BPD with the gestational age (GA).Methods: In a prospective observational study, a total of 100 women underwent periodic ultrasound examination between 12 and 40 weeks of gestation. Using Microsoft Excel trend line feature, polynomial regression was performed for each of this patient and weekly BPD values were extrapolated. For each week of gestation, we obtained 100 data points, and these were entered into SPSS software to obtain means, standard deviations (SD), and percentile charts for BPD. Relationship between GA and BPD was also established using curvilinear regression. Z scores were used to compare the findings of the present study with Indian, Asian, and non-Asian regions. The incremental growth of BPD per week was also established for the same GA range.Results: The mean ± SD of BPD value at 12 weeks was 20.4±0.94 mm, which gradually increased to 92.5±2.89 mm at full term. There was a strong relationship between BPD and GA as indicated by polynomial regression analysis. As gestation advanced, BPD growth rate slowed down from 3.5 mm from mid-pregnancy to around 1 mm at term. Our BPD charts resembled closely Chinese and US growth charts.Conclusion: There was a good mathematical relationship between fetal BPD and GA. The BPD charts and percentile tables derived from the present study help to establish customized growth charts for the local population.
ANTIPROLIFERATIVE AND IN SILICO ADMET STUDY OF NEW 4-(PIPERIDIN-1-YLMETHYL)-2- (THIOPHEN-2-YL) QUINOLINE ANALOGUES
Authors: S Harishkumar , Nd Satyanarayan , Sm Santhosha
Published: April 2018

Objective: Synthesis and antiproliferative study of novel 4-(piperidin-1-ylmethyl)-2-(thiophen-2-yl) quinoline 7(a-j) derivatives.Methods: 4-(piperidin-1-ylmethyl)-2-(thiophen-2-yl) quinolines were synthesized by the addition of 4-(chloromethyl)-2-(thiophen-2-yl) quinoline (0.01 mol), piperidine (0.01 mol) in DMF (10 v) and K2CO3 (0.02 mol). The anticancer activity of the title compounds performed against T-47D, HeLa, HepG2, and MCF-7 human cancer cell lines growth was investigated by MTT assay.Results: The compounds 7b and 7g exhibited 90% of the growth inhibitory effect on T-47D, HeLa, and MCF-7 and also 80% growth inhibition in HepG2 when compared with standard drug paclitaxel.Conclusion: The synthesized compounds 4-(piperidin-1-ylmethyl)-2-(thiophen-2-yl) quinoline 7(a-j) exhibited a considerable degree of growth inhibition of human cancer cell lines. The synthesized molecules 7(a-j) are in acceptable range and are less toxic and can be considered as possible hits for drug discovery.
A CROSS-SECTIONAL STUDY ON SELF-MEDICATION PRACTICES AND MEDICATION ADHERENCE AMONG KASHMIRI URBAN POPULATION
Authors: Mir Shakeel Ahmad
Published: April 2018

Objectives: Self-medication has been adopted worldwide. It is voluntarily chosen by the consumers as it has social and economical benefits. For self-medication to be successful, adherence is an important factor. Adherence to medications is associated with improved clinical outcomes and reduced morbidity and mortality. The objectives of the present study are to assess the prevalence, pattern, and adherence of urban population of Kashmir to self-medication.Methods: A total of 200 participants were included in this questionnaire-based study by convenience sampling. Informed written consent was taken from each participant in this study. Consenting participants anonymously completed the questionnaire. Only 176 returned the completed questionnaire, 18 participants denied any self-medication practice and their data were not further analyzed. Data of 158 participants were analyzed by manual calculators, VassarStats, and SPSS (V20). Results are expressed in frequencies and percentages.Results: The study population consisted of 65.18% males 94.12% were literate 84.57% self-medicated for fever and respiratory symptoms, 3.79% for skin-related symptoms, 5.06% for urinary symptoms, 4.43% for oro dental conditions, and 5.69% for gastrointestinal symptoms. 89.87% purchased the drugs from the pharmacy, and 10.12% used leftover drugs. Only 26.58% used the drugs until apparent full recovery. 51.28% stopped the drugs as soon as symptoms disappeared. 12.65% stopped the drugs after few days. 6.32% had a mixed behavior. 25.31% consulted pharmacist for advice, 10.75% received advice from family and friends, and 43.03% collected information from internet, print, and electronic media.Conclusion: Self-Medication is practiced worldwide. It has many advantages to benefit from the practice, adherence is an essential factor. Poor adherence may make it less useful and even a harmful practice.
PERBANDINGAN STRATEGI TIPE LISTENING TEAM DENGAN TIPE PRACTICE REHEARSAL PAIRS
Authors: Via Ilta
Published: April 2018

Mathematics is one of the lessons learned in school to develop the ability to count, measure, and solve problems in everyday life. Math grows due process of thinking, therefore, the logic is the basis for the formation of mathematics. Logic is the infancy of mathematics, mathematics is the opposite of logic adulthood. Given the importance of mathematics in life, we need a learning that is able to develop students' mathematical abilities. through the practice of acting on the premise logical, rational, critical, careful, honest, effective and efficient. And to prepare students to use mathematics and mindset of mathematics in everyday life, and in studying various sciences. Efforts should be made to overcome this problem is by applying active learning strategies that can help the learning process of students that is based on the creativity of the students active learning strategies Listening Team and the type of active learning strategies type Practice Rehearsal Pairs. This study aims to determine differences in learning outcomes of students who are taught using active learning strategies Listening Team and the type of active learning strategies type Practice Rehearsal Pairs
PENERAPAN MODEL PBL MENGGUNAKAN ALAT PERAGA SEDERHANA TERHADAP HASIL BELAJAR PESERTA DIDIK
Authors: Suliyati Suliyati , Mujasam Mujasam , Yusuf Irfan , Widyaningsih Sri Wahyu
Published: April 2018

Rendahnya hasil belajar peserta didik SMK Negeri 2 Manokwari pada mata pelajaran fisika diakibatkan oleh beberapa hal yaitu kegiatan pembeajaran yang berorientasi pada pendidik seperti menggunakan metode ceramah dan latihan soal sehingga peserta didik kurang terlibat aktif dalam pembelajaran. Pendidik juga kurang memanfaatkan alat peraga sebagai sarana pembelajaran sehingga peserta didik sulit untuk memahami konsep dan teori fisika. Penelitian ini bertujuan untuk mengukur perbedaan yang signifikan antara hasil belajar sebelum dan setelah diterapkan model PBL menggunakan alat peraga sederhana. Penelitian kuasi eksperimen ini menggunakan Time Series Design. Teknik pengambilan sampel dilakukan secara purposive sampling dengan melibatkan kelas X TKJ B. Pada penelitian ini peneliti membandingkan hasil belajar pretest dan postest. Hasil penelitian menunjukkan bahwa rata-rata pretest sebesar 23,72 ± SD 22,11 kategori sangat kurang sedangkan posttest sebesar 43,91 ± SD 24,14 kategori cukup, hal ini menunjukkan bahwa penerapan model pembelajaran PBL menggunakan alat peraga sederhana lebih meningkatkan hasil belajar peserta didik SMK Negeri 2 Manokwari. Sejalan dengan hasil pengolahan data menggunakan Paired sample t-test, dengan taraf signifikan α = 5% diperoleh thitung = 4,778. Nilai ttabel diketahui 1,697 sehingga thitung > ttabel yang berarti terdapat perbedaan yang signifikan hasil belajar peserta didik antara sesudah dan sebelum diterapkan model PBL menggunakan alat peraga sederhana. Demikian pula berdasarkan uji n-gain diperoleh peningkatan perbedaan meskipun masih berada dalam taraf rendah g < 0,3 sehingga pembelajaran fisika dengan model PBL menggunakan alat peraga sederhana dapat membantu peserta didik dalam proses pembelajaran dan dapat meningkatkan hasil belajar peserta didik.
The investigation of the effects of Ramadan fasting on the mood state of healthy volunteer persons
Authors: Erdem Ozgur
Published: April 2018

Introduction: The present study was carried out to investigate the effect of Ramadan
fasting on human psychology among healthy volunteer people.Methods: In this cross-sectional type study, the universe of the research is
composed of healthy volunteer people who registered at the Kayapınar Peyas
family health centre in Diyarbakır and declared they planned to fast at the
month of Ramadan in 2017. A questionnaire form including a sociodemographic
questionnaire and Turkish version of the Depression Anxiety Stress Scale
(DASS-42) was formed. The online questionnaire technique was used to obtain the
data via e-mail and smartphone. The study was conducted during the summer of
2017. The survey conducted to the same healthy volunteer group one weak before
Ramadan (May 22-26) and at the end of Ramadan (June 21-25). SPSS 21.0
statistical package was used in the data analysis. The statistical analyses
were considered significant if p<0.05.Results: 73 healthy volunteer subjects with no known health problems and who
were not in the risk groups in terms of mental and physical health were
included in the statistical evaluation. According to the DASS score, when the
pre-Ramadan scores of the samples were compared to the post-Ramadan scores;
depression (p=0.001), anxiety (p=0.01) and stress (p =0.002) scores were found
to be lower at the end of Ramadan. When compared to the pre-Ramadan scores of
the samples and the post-Ramadan scores; anxiety (p< 0.05) prevalence was
found to be lower at the end of Ramadan.

Conclusion: The results of the current study demonstrated that fasting in the
month of Ramadan have been effective in diminishing stress, anxiety, and
depression levels.
How to Use Gay Nazis in Job Interviews: Queer Media, Striptease-Lectures and the Art of Existential Sodomism
Authors: Alexandros Papadopoulos
Published: April 2018

A video-performance on homoerotic nazism is transformed into a deranged guide of professional and erotic survival. Based on an actual interview with a gay Nazi, this project encompasses academic essays, lecture-performances and a series of digital and urban sensations. All these forms expression explore how social media can stage a horny war against fear, hatred and uncertainty. Physically and intellectually provocative, this is an analysis of the relationship between facebook, austerity-horror and queer desire. This polymedia project includes a short clip and ritualistic acts of self-exposure. This dialogue between storytelling and art-theory re-stages the shocking testimonies of the experimental short-film/video-performance (The Homonazi Effect). Centered on factual -- violent, flirty and cyber -- encounters with Athens-based gay neo-Nazis, the Homonazi Effect encompassed an alliance of platforms: blogs, queer festivals, popular magazines, academic writing and social media. Visual components of the artwork, and particularly, the author’s impersonations of his ‘homo-Nazi’ interlocutor were re-used and re-adapted with various storytelling and self-writing formats – co-creating a fragmented intermedia collage of confession and defeat. Social Media rituals twisted the meaning, context and impact of the initial story – re-situating its visual dramatics within an aesthetic backdrop of failed job interviews, zero-hour contracts and traumatic escapism. A cinematic narration dissolves into a project of self-writing, one that establishes an exhibitionistic archiving of failure. The boundaries between fiction and non-fiction, history and imagination and digital and non-digital dramaturgy collapse. A new queer utopia is now disruptively staged on the performative intersection of precarious routine and austerity-age dreamland.
Can a drawing be rehearsed?; or, There's no bowing in performance art
Authors: William Platz
Published: April 2018

This exposition combines a practice-led research project titled 'Tullah and Tom: A Drawing Affair' with a reflective analysis of ‘performance drawing’—a tag deployed with increasing frequency in drawing research. Drawing has always been hybridised and concocted with other disciplines and research frameworks, but its contemporary associations with performance art, expanded theatre and the performing arts are under-examined. The co-option of drawing by performance lacks extensive critical engagement, as do significant aspects of the performance drawing process. The subject of this exposition is two of these unexamined aspects—rehearsal and the curtain call. Although there are analogies to be drawn with theatre, this research resists analogy and focuses on these phenomena within the context of drawing practice. Drawing rehearsals and curtain calls are peculiar and specific activities within the performance/drawing nexus, and their examination has yielded significant insight. One private and one public, these ancillary and parasitical processes bracket the performance drawing and fulfil pivotal roles in enacting, re-enacting, and disenthralling the drawing from its performance matrix.
Exploring the Principles of Allodoxic Art (in dialogue with Baroness Elsa)
Authors: Jenny Brown
Published: April 2018

It is possible to bring socio-politically engaged practices into the realm of the commons. These practices I have grouped under the umbrella of allodoxic art, a term defined in the first section of this exposition. Allodoxic art provides a way of bringing into focus the social movement struggles that have shaped the discourse across social and environmental justice, embracing the total contribution of individuals’ artistic forms and active citizenship.
 
French sociologist Pierre Bourdieu (1930–2002) recuperates the concept of allodoxia that was first used by the Greek philosopher Plato (427–347 BC) to describe false beliefs arising from misrecognition. The word allodoxia derives from two Greek words allo referring to a mixture, and doxa meaning practices or teachings. An understanding of his use of allodoxia can equip artists with a tool to map pre-allodoxic tactical actions for unfolding allodoxic interventions that target and impact upon privileged space. Such interventions can maintain and expand the commons as embedded policy and programs, rights, and community-led initiatives. The commons are theorised here not merely as a passive legacy, but as a stake to be claimed, insistently and programmatically, as a matter of collective urgency. The commons also refer to lost or new territory claimed for the protection or expansion of rights, on the one hand, and the common good and activism in general on the other.
 
I present several artwork examples that elucidate hegemonic social games, as well as others that demonstrating the connection between allodoxia and hegemony. These may act as access points for artists and intervention participants to understand how allodoxic interventions, as anti-hegemonic behaviour, contribute knowledge and skills to commoning processes. They may also, through the exploration and testing of tactics, help those processes gain traction and develop. These are drawn from the radical performative practice of German-born Baroness Elsa von Freytag Loringhoven (born Else Hildegard Plötz 1874–1927: henceforth Baroness Elsa) and my studio based works.
 
The theorisation of allodoxic art also draws from German political thinker Hannah Arendt (1906–1975), specifically her theoretical work on revolutions, which provides greater understanding of how and why we should take political actions against privileged space. As principles for allodoxic art, this work develops an analytical armature for judging the success of these tactics and to further develop these types of interventions.
REVIEW OF TOMOGRAPHIC RECONSTRUCTION METHODS OF THE IONOSPHERE USING GNSS
Authors: Prol Fabricio Dos Santos , Camargo Paulo De Oliveira
Published: April 2018

ABSTRACT. Spatial and temporal variation of the electron density in the atmosphere makes the ionosphere a difficult region to model. A major difficulty arises due to the incomplete geometrical coverage of the Global Navigation Satellite System (GNSS) for tomographic applications, making the ionospheric tomographic system an ill-conditioned problem. Although the tomographic system is ill-conditioned, several techniques have been developed to partially overcome the problem. There is great interest in using tomographic techniques for ionospheric imaging, because it allows describing the ionosphere in terms of electron density, which is an important parameter for studying the behavior of the physical processes that occur in the upper atmosphere. In Brazil, there are additional interests in the tomographic techniques, due to the peculiar characteristics of the ionosphere and of the geomagnetic field over the region. In this direction, methods of ionospheric tomographic reconstruction are presented and discussed in this review. Particular emphasis is given to the mathematical formulation from grid-based and function-based methods and are presented some of their main advantages and limitations.Keywords: TEC, Inverse Problem, Grid-Based Tomography, Function-Based Tomography, Ionospheric Imaging. RESUMO. A variação espaço-temporal da densidade eletrônica na atmosfera terrestre torna a ionosfera uma região de difícil modelagem. A principal dificuldade no imageamento da ionosfera com o GNSS (Global Navigation Satellite System ) é devido à geometria dos satélites, pois torna o sistema tomográfico mal condicionado. Muito embora a geometria não permita solução direta do sistema, diversas técnicas foram desenvolvidas para parcialmente superar tal problema. Há grande interesse no uso de técnicas de tomografia para o imageamento da ionosfera, pois permitem descrever a ionosfera ao nível da densidade eletrônica, sendo este um importante parâmetro para compreender os processos físicos que ocorrem na alta atmosfera. No Brasil, existem interesses adicionais no imageamento ionosférico por meio de técnicas tomográficas devido às características peculiares da ionosfera e do campo geomagnético sobre a região. Neste sentido, métodos utilizados para a reconstrução tomográfica da ionosfera são apresentados e discutidos nesta revisão. Uma ênfase especial é dada para a formulação matemática dos métodos baseados em células e em funções, além da apresentação de algumas de suas principais vantagens e limitações.Palavras-chave: TEC, Problema Inverso, Tomografia Baseada em Células, Tomografia Baseada em Funções, Imageamento Ionosférico.
EFFECT OF MINERAL COMPOSITION OF CARBONATE ROCKS ON THEIR PETROPHYSICAL PROPERTIES
Authors: Ruana Silva de Sena Mábia , Agnelo Soares José
Published: April 2018

ABSTRACT. The construction of digital models from a set of x-ray tomography images of high resolution (μCT) acquired in rock samples is an innovative technique in growing use nowadays. The objectives of this study were: demonstrate the potential of this technique to quantify mineral content of 15 carbonate rock samples from northeastern Brazil, through μCT analysis; to compare the results with the analysis of X-ray diffraction (XRD); and to evaluate the effect of this mineral composition on the petrophysical properties of these rocks. The results achieved in the simulation of the mineral composition confirmed that the analyzed carbonate rock samples are mainly composed of calcite and or dolomite. In general the XRD results confirmed the mineral composition indicated by μCT, except for amorphous minerals and those with small contents (accessory minerals). The results show the content of major minerals controlling the petrophysical properties, especially grain density and elastic velocities. However, other factors which were assessed through the analysis of μCT, also significantly affected the elastic velocities: porosity, type of porosity (if intergranular or vugular) and proportion of microporosity present in the rock. Keywords: carbonates, microcomputed tomography, mineral characterization, petrophysics, x-ray diffraction. RESUMO. A construção de modelos digitais de rochas a partir de um conjunto de imagens de tomografia de raios de x de alta resolução (μCT) é uma técnica inovadora com uso crescente atualmente. Os objetivos deste estudo são demonstrar o potencial desta técnica para quantificar a composição mineral de quinze amostras de rochas carbonáticas oriundas de bacias sedimentares do nordeste brasileiro, através da análise dos dados de μCT, comparar os resultados com as análises de difração de raios x (DRX), e avaliar o efeito da composição mineral sobre as propriedades petrofísicas dessas rochas. Os resultados obtidos na simulação da composição mineral, através de μCT, indicam que as amostras são compostas principalmente por calcita e/ou dolomita. Em geral os resultados de DRX confirmaram a composição mineral indicada por μCT, exceto para minerais amorfos e para aqueles que apresentam pequenos teores (minerais acessórios). Os resultados demonstram que os minerais principais (com teores mais elevados) controlam as propriedades petrofísicas, especialmente a densidade de grãos e as velocidades elásticas. Entretanto, outros fatores, os quais foram avaliados através da análise de μCT, também afetaram de maneira significativa as velocidades elásticas: porosidade, tipo de porosidade (se intergranular ou vugular) e proporção de microporosidade presente na rocha. Palavras-chave: carbonatos, microtomografia de raios x, caracterização mineral, petrofísica, difração de raios x.
ACOUSTIC SEISMIC WAVE ATTENUATION IN ROCKS: ESTIMATES INSTABILITIES, FREQUENCY-DEPENDENCE AND INCOHERENCES
Authors: Peláez Julián David , Montes Luis Alfredo
Published: April 2018

ABSTRACT. Seismic wave attenuation (Q−1) values indicate relevant media properties, such as fluid content and porosity. Q−1 estimates, obtained using both VSP and conventional well log data, did not exhibit comparable trends, nor values. Whereas VSP results represent total attenuation, well log Q−1, which, theoretically, should represent scattering losses, displayed a low percentage correlation with transmission coefficients and other well logs. The influence of processing routines, chosen methodology and input parameters on Q−1-values suggests that ASR (Amplitude Spectral Ratio) and CFS (Centroid Frequency Shift) attenuation estimates should be regarded, in practical terms, as relative quantities instead of absolute ones. Seemingly incoherent negative values are frequent, nonetheless these could hold a physical meaning related to elastic amplification at interfaces. Considering that quality factor (Q) values obtained were more unstable than Q−1-values, it is advisable to report the latter. Keywords: Vertical Seismic Profiles, well logs, transmission coefficients, scattering, amplification.RESUMO. Os valores de atenuação da onda sísmica (Q−1) indicam propriedades relavantes dos meios, tais como conteúdo de fluido e porosidade. As estimativas do Q−1, obtidas usando dados de VSP e dados de poços convencionais, não apresentaram tendências nem valores comparáveis. Enquanto os resultados de VSP representamatenuação total, os resultados dos dados de poços, que teoricamente deveriam representar perdas de dispersão, apresentaramuma baixa correlação percentual com os coeficientes de transmissão e outros dados de poços. A influência das rotinas de processamento, da metodologia escolhida e dos parâmetros de entrada nos valores Q−1 sugere que as estimativas de atenuação ASR (Amplitude Spectral Ratio) e CFS (Centroid Frequency Shift) devem ser, em termos práticos, consideradas como quantidades relativas em vez de absolutas. Valores negativos aparentemente incoerentes são frequentes, no entanto estes poderiam conter um significado físico relacionado `a amplificação elástica nas interfaces. Considerando que os valores do fator de qualidade (Q) obtidos foram mais instáveis do que os valores de Q−1, é aconselhável documentar o último. Palavras-chave: Perfis Sísmicos Verticais, registros de poços, coeficientes de transmissão, dispersão, amplificação.
New classification results on surfaces with a canonical principal direction in the Minkowski 3-space
Authors: Kelleci Alev , Ergüt Mahmut , Turgay Nurettin
Published: April 2018

In this paper, wecharacterize and classify all surfaces endowed with
canonical principal direction relative to a space-like and light-like,
constant direction in the Minkowski 3-space.
A note on invariant submanifolds of CR-integrable almost Kenmotsu manifolds
Authors: Suh Young , Mandal Krishanu , De Uday
Published: April 2018

The present paper deals with invariant submanifolds of CR-integrable almost
Kenmotsu manifolds. Among others it is proved that every invariant
submanifold of a CR-integrable (k,?)'-almost Kenmotsu manifold with k < -1
is totally geodesic. Finally, we construct an example of an invariant
submanifold of a CR-integrable (k,?)'-almost Kenmotsu manifold which is
totally geodesic.
A synthetic algorithm for families of demicontractive and nonexpansive mappings and equilibrium problems
Authors: Abkara Ali , Shekarbaigia Mohsen
Published: April 2018

We study the rate of convergence of a new synthetic algorithm for finding a
common element of the set of solutions of an equilibrium problem and the set
of common fixed points of a pair of nonexpansive mappings and two finite
families of demicontractive mappings. We then provide some numerical
examples to illustrate our main result and the proposed algorithm.
Generalized operations in soft set theory via relaxed conditions on parameters
Authors: Abbas Mujahid , Ali Muhammad , Romaguera Salvador
Published: April 2018

Soft set theory has been evolved as a very useful mathematical tool to handle
uncertainty and ambiguity associated with the real world data based
structures. Parameters with certain conditions have been used to classify
the data with the help of suitable functions. The aim of this paper is to
relax conditions on parameters which lead us to propose some new concepts
that consequently generalize existing comparable notions. We introduce the
concepts of generalized finite soft equality (gf-soft equality),
generalized finite soft union (gf-soft union) and generalized finite soft
intersection (gf-soft intersection) of two soft sets. We prove results
involving operations introduced herein. Moreover, with the help of examples,
it is shown that these operations are proper generalizations of existing
comparable operations.
On the uniform boundedness and convergence of generalized, Moore-Penrose and group inverses
Authors: Zhu Lanping , Zhu Changpeng , Huang Qianglian
Published: April 2018

This paper concerns the relationship between uniform boundedness and
convergence of various generalized inverses. Using the stable perturbation
for generalized inverse and the gap between closed linear subspaces, we
prove the equivalence of the uniform boundedness and convergence for
generalized inverses. Based on this, we consider the cases for the
Moore-Penrose inverses and group inverses. Some new and concise expressions
and convergence theorems are provided. The obtained results extend and
improve known ones in operator theory and matrix theory.
Tournament Incentives and Stock Price Crash Risk
Authors: Jia Ning
Published: April 2018

SYNOPSIS

Using a large sample of U.S. public firms, I provide robust evidence that promotion-based tournament incentives, which are measured as the pay gaps between the CEO and other senior executives, are significantly and positively related to the firm's future stock price crash risk. The documented relationship is robust to controlling for corporate governance quality, and is attenuated for firms with a recent CEO turnover and for firms with more effective external monitoring. In contrast, the relationship is accentuated for firms that experience consecutive underperformance and for firms with greater opacity. Findings of this paper advance our understanding of the benefits and downsides of promotion incentives for non-CEO executives, and highlight the implications of inter-executive incentive scheme design for firm-specific stock price crash risk.

JEL Classifications: G34; G12; G30.
Scratchpad: A Private Company Business Valuation Case
Authors: DiGabriele James A. , Riley Richard A.
Published: April 2018

Ben and Cindy Johnson have been partners in marriage and business for 20 years, jointly owning and operating Scratchpad, a software production and distribution company. In recent years the couple drifted apart, and Ben, with Cindy's agreement, has filed for divorce. The couple has also agreed that they will not work together post-divorce. As a result, the divorce settlement will include compensation to Ben for transferring his ownership interest in Scratchpad to Cindy. In this case, you will be the valuation analyst to develop the valuation of Scratchpad to support this matrimonial dissolution.
MODELING THE MIGRATION OF UKRAINIANS TO STUDY ABROAD
Authors: Totska Olesia
Published: April 2018

The dynamics of the number of Ukrainians studying abroad in 2008–2016 has been analyzed. The projected models of these indicators for 2016–2019 for the eight countries of Western Europe, seven of Eastern Europe, five of North Europe, five of Southern Europe, four of partly European, two of North America and one of Australia and Oceania have been constructed. The forecast of the total indicator of Ukrainian students in the 32 countries of the world is forecast.
THE INTERNALIZATION OF TNC’S PRODUCTION: FINDINGS FOR UKRAINIAN BUSINESS
Authors: Vdovychenko Yuriy , Leshchenko Marina
Published: April 2018

The article deals with mergers and acquisitions as modern strategies of TNCs internationalization. The positions of Ukrainian capital on international mergers and acquisitions’ market are explored. The peculiarities of foreign investors' activity in the different sectors of the national economy are determined. The factors preventing national companies from gaining competitive advantages on the world market are outlined.
ECONOMIC ASPECTS AND DEVELOPMENT VECTORS OF THE ENERGY EFFICIENCY IN UKRAINE
Authors: Smyrnov Ievgen
Published: April 2018

In the article, the subject of the research is the existing energy system of Ukraine, and more precisely the possibilities for its transformation in accordance with the adopted changes in the Energy Strategy of the country. The author's attention was focused on analyzing the current state of the energy industry, monitoring its regulatory and legislative framework, and identifying the necessary components of the attractive investment climate of the domestic energy sector. Also the subject of the paper's reflection was the theoretician-applied aspects of monetization of energy efficiency as a key element of energy independence of the state and the main component of its energy doctrine. The prospects and further vectors of energy saving and energy efficiency development in Ukraine were analyzed and shaped.
PROBLEMS AND PERSPECTIVES OF CREATION AND COMMERCIALIZATION OF INTELLECTUAL PRODUCTS IN HIGHER EDUCATIONAL ESTABLISHMENTS
Authors: Loiko Valeriia , Ramskyi Andrii
Published: April 2018

The article is devoted to the analysis of problems and prospects for the creation and commercialization of intellectual products in higher educational establishments and the development of international cooperation in this field.
THE MODERN PARADIGM OF PRIVATE ECONOMIC CULTURE
Authors: Krynski Andrzej , Mamanazarov Abdukhakim , Kulishov Volodymyr , Kome Abraham
Published: April 2018

This article examines the processes of cultural development of society, the concepts and theories of the formation of the modern paradigm of economic culture, the different points of view  are given regarding the nature, content and components of economic culture at the micro level, the possible ways of formation and development of private economic culture at the modern stage of society development.
INNOVATIVE METHODS AND IT TECHNOLOGIES IN THE TEACHING OF MODERN LANGUAGES AT THE ECONOMIC UNIVERSITY (ON THE EXAMPLE OF TEACHING UKRAINIAN AND POLISH LANGUAGES AS FOREIGN)
Authors: Bondarchuk Larysa , Iermak Lesia , Podgurska Tamara
Published: April 2018

The article presents the specific character of teaching foreign languages – "Ukrainian as a foreign language" and "Polish as a foreign language" – for students-economists at Kiev National Economic University named after Vadym Hetman. The basic assumptions of these disciplines are the principle of regularity, the orientation on achieving linguistic communication, and familiarizing students with vocational vocabulary. Disciplines are aimed at teaching practical knowledge of Ukrainian and Polish as foreign languages, shaping cultural (real-life) competences and familiarizing with the normative principles of functioning of these languages in various communication situations.
Particular attention is also paid to the use of innovative methods and IT technologies in language education of a modern economic university (case study method, project method, metaplan method in teaching Polish and Ukrainian languages as foreign).
Interações e intercessões em rodas de conversa: espaços de formação inicial docente
Authors: Bedin Everton , Del Pino José Claudio
Published: April 2018

Este artigo apresenta ensaio empírico, resultado de intervenção pedagógica, embasado na análise crítica da experiência das rodas de conversas com professores de química em formação inicial de uma universidade privada da região metropolitana da Grande Porto Alegre, Rio Grande do Sul. Procura contribuir com a qualificação metodológica e pedagógica das rodas de conversa como curso de extensão de relação bilateral, expondo reflexões dos sujeitos da pesquisa sobre o ser professor na contemporaneidade. Os dados, interpretados e analisados mediante a Análise Textual Discursiva (ATD) e apoiados em informações quantitativas e qualitativas, foram obtidos dos diálogos nas rodas de conversa, com base em um questionário pré-estruturado. Conclui que os espaços de conversação possibilitaram aos futuros professores a percepção de uma formação crítico-reflexiva na/pela prática pedagógica, para que possam buscar a qualidade e a melhoria em sua formação epistemológica.
Revista Completa
Authors: Executiva Editoria
Published: April 2018

Revista Completa
Implementasi Model Siklus Belajar (Learning Cycle) Untuk Meningkatkan Kualitas Proses dan Hasil Pembelajaran Mengelas Dengan Gas Metal Siswa Kelas XII Sekolah Menengah Kejuruan Negeri 3 Makassar
Authors: -- Nulaela , Tawil Muh. , Bambang Lukman , M Abbas , Tamaluddin Lukman , Rani Syahril Ramli
Published: April 2018

This action research aims to implement the Learning Cycle model to improve the quality of the learning process and learning outcomes with the gas metal welding class XII students in SMK 3 Makassar. Research problems are (1) how to get through the learning cycle model can be improved with the learning process gas metal welding class XII student of SMK 3 Makassar, and (2) how to get through the learning cycle model of learning outcomes can be improved with the gas metal welding class XII students SMK 3 Makassar. The data analysis technique used is descriptive statistical analysis. The results obtained by the action is an increase in the quality of the learning process of students of class XII SMK 3 semester 2 of the cycle I to cycle II, include: (1) the better the learning activities, (2) reliability management of the learning cycle model learning of 51%, (3 ) studentsâ€™ responses to a very good learning and learning outcomes, which include (a) the product: for 47 percent (exhaustiveness of individuals) and 55 percent (exhaustiveness classical), (b) affective aspects of 30 percent, and (c) 60 percent of psychomotor aspects. Thus to implement the Learning Cycle model can improve the quality of the learning process and learning outcomes with the gas metal welding class XII student of SMK 3 Makassar.Â ABSTRAKÂ Penelitian tindakan ini bertujuan mengimplementasikan model Siklus Belajar untuk meningkatkan kualitas proses pembelajaran dan hasil belajar mengelas dengan gas metal siswa kelas XII di SMK Negeri 3 Makassar. Masalah penelitian adalah 1) bagaimana cara agar melalui model siklus belajar dapat ditingkatkan proses pembelajaran mengelas dengan gas metal siswa kelas XII SMK Negeri 3 Makassar, dan 2) bagaimana cara agar melalui model siklus belajar dapat ditingkatkan hasil belajar mengelas dengan gas metal siswa kelas XII SMK Negeri 3 Makassar. Teknik analisis data yang digunakan adalah analisis statistik deskriptif. Hasil penelitian tindakan yang diperoleh adalah terjadi peningkatan kualitas proses pembelajaran siswa kelas XII semester 2 SMK Negeri 3 dari siklus I ke siklus II, meliputi: 1) aktivitas belajar semakin baik, 2) reliabilitas pengelolaan pembelajaran model siklus belajar sebesar 51%, 3) respon siswa terhadap pembelajaran sangat baik dan hasil belajar, yang meliputi (a) produk: sebesar 47 persen (ketuntasan individu) dan 55 persen (ketuntasan klasikal), (b) aspek afektif sebesar 30 persen, dan (c) aspek psikomotor 60 persen. Dengan demikian dengan mengimplementasikan model Siklus Belajar dapat meningkatkan kualitas proses pembelajaran dan hasil belajar mengelas dengan gas metal siswa kelas XII SMK Negeri 3 Makassar.Â
Kegiatan Sains dalam Kurikulum TK untuk Mengembangkan Kreativitas Anak Didik
Authors: -- Sumiyati
Published: April 2018

The purposes of this research are: 1) to get the picture of studentâ€™s creativity in science activity by implementing contextual approach to kindergartensâ€™ students; 2) to get the picture of studentâ€™s creativity in science activity by implementing conventional approach to kindergartensâ€™ students; 3) to know the different of kindergartenâ€™s studentâ€™s creativity between the students taught by implementing contextual approach and the other ones taught by implementing conventional approach in science activity. Data are analyzed with the descriptive and inferential statistics; The result of this research shows that 1) In the science activity, the creativity of kindergartensâ€™ students; taught by implementing contextual approach having a higher average point to the ones taught by implementing the conventional approach; 2) In contextual approach teaching, thenumber of students having higher point than the average point are higher to the ones having lower point than the average point. The same result is obtained in conventional approach teaching as well; 3) The number of students having higher point than the average point in contextual approach teaching are higher to the ones in conventional approach teaching;Â ABSTRAKPenelitian ini bertujuan untuk 1) mengetahui gambaran tentang kreativitas anak didik dalam kegiatan sains dengan pendekatan Kontekstual pada TK; 2) mengetahui gambaran tentang kreativitas anak didik dalam kegiatan sains dengan pendekatan konvensional yang diterapkan guru pada TK; 3) mengetahui perbedaan antara kreativitas anak didik yang diajar menggunakan pendekatan kontekstual dengan kreativitas anak didik yang diajar menggunakan pendekatan konvensional pada kegiatan sains di TK. Data dianalisis dengan analisis statistik deskriptif dan analisis statistik inferensial; Hasil penelitian menunjukkan bahwa 1) Kreativitas anak didik TK; dalam kegiatan sains yang diajar dengan pendekatan kontekstual mempunyai skor rata-rata lebih tinggi dari pada yang diajar dengan pendekatan konvensional; 2) Dari hasil penelitian dengan pendekatan kontekstual diketahui anak didik yang mempunyai skor di atas skor rata-rata lebih banyak dari pada yang memiliki skor dibawah skor rataâ€“rata, dan hasil penelitian dengan pendekatan konvensional diketahui anak didik yang mempunyai skor diatas skor rata-rata juga lebih banyak dari pada anak didik yang memiliki skor di bawah skor rata-rata; 3) Anak didik yang memperoleh skor di atas rata-rata pada pendekatan kontekstual lebih banyak dibanding anak didik yang memperoleh skor di atas rata-rata pada pendekatan konvensional.
Pengaruh Kekohesifan, Gaya Kepemimpinan dan Budaya Kerja Terhadap Efektivitas Organisasi
Authors: Kustoro Bambang Dwidjo
Published: April 2018

The research was conducted at educational tools companies to obtain with the effect of cohesiveness, leadership style and organizational culture on organizational effectiveness, by using a survey method with path analysis applied in testing hypothesis. The amount of 417 companies selected by simple random sampling with 120 samples and each sample was represented by its director or owner to fill the data. The research reveals that: 1) there is a direct positive effect of cohesiveness on organizational culture; 2) there is a direct positive effect of cohesiveness on organizational effectivenes; 3) there is a direct positive effect of leadership style on organizational culture; 4) there is a positive direct effect of leadership style on organizational effectivenes; and 5) there is a direct positive effect of organizational culture on organizational effectivenes. Due to this findings it could be drawn that 6) there is a indirect positive effect of cohesiveness on organizational effectivenes through organizational culture; and 7) there is an indirect positive effect of ledership style on organizational effectivenes through organizational culture.The result explain that the cohesiveness, leadership style, organizational culture are the variances of organizational effectivenes. Therefore, it implies that the organizational effectivenes can be improved by developing the cohesiveness, leadership style organizational culture.Â ABSTRAKObyek penelitian adalah untuk meneliti pengaruh kekohesifan, gaya kepemimpinan, budaya kerja, daya saing terhadap efektivitas organisasi. Penelitian dilaksanakan pada perusahaan pengadaan alat-alat teknik pendidikan dengan mempergunakan metoda Path Analysis untuk membuktikan hipotese. Dilakukan pada 417 perusahaan yang diwakili oleh 120 sampel dan setiap sampel diwakili oleh direktur yang ditunjuk oleh perusahaan atau oleh pemilik perusahaan dalam menjawab instrumen penelitian berupa questioinaires. Penelitian membuktikan; terdapat pengaruh positif langsung kekohesifan terhadap budaya kerja, terdapat pengaruh langsung positif kekohesifan terhadap efektivitas organisasi, terdapat pengaruh positif langsung gaya kepemimpinan terhadap budaya kerja, terdapat pengaruh positif langsung gaya kepemimpinan terhadap efektivitas organisasi, terdapat pengaruh positif langsung budaya kerja terhadap efektivitas organisasi, terdapat pengaruh positif tidak langsung kekohesifan terhdap efektivitas organisasi melalui budaya kerja, terdapat pengaruh positif tidak langsung gaya kepeminpinan terhadap efektivitas organisasi. melalui budaya kerja. Hasil penelitian menjelaskan bahwa kekohesifan,gaya kepemimpinan dan budaya kerja adalah varian dari efektivitas organisasi. Sehingga dapat disimpulkan bahwa efektivitas organisasi dapat ditingkatkan dengan mengembangkan kekohesifan, gaya kepemimpinan dan budaya kerja.