bluuebunny/crossref_metadata_2025 huggingface dataset:
La voz en los cantantes líricos. Protocolo para su valoración clínica y acústica
Authors: Fernández Gutiérrez María José , Isidoro Álvarez Carla , Rodríguez Paloma Sirgo , Núñez Batalla Faustino , Álvarez Marcos César Antonio
Published: January 2021

El objetivo de esta investigación es elaborar un protocolo clínico y acústico con diversas técnicas para evaluar la voz de los cantantes líricos. Se seleccionaron 18 cantantes líricos, que se consideraban sanos, clasificados como soprano, mezzosoprano, contralto, tenor, barítono y bajo. A todos se les realizó la anamnesis, el S-VHI y una serie de estudios aerodinámicos (TMF, índice s/e y cociente de fonación) y acústicos (F0, intensidad, HNR, Jitter, Shimmer, espectrograma, fonetograma y LTAS), así como una exploración clínica e instrumental estroboscópica. El 33% eran fumadores, siendo este hábito más frecuente en hombres. El S-VHI detectó 20 puntos sobre 144 posibles, puntuación relativamente alta de su grado de incapacidad. Casi la mitad obtuvieron valores fuera del rango de normalidad en el TMF, índice s/e y cociente de fonación. Las características acústicas de su voz y los rangos vocales y dinámicos estaban, en la mayoría de los casos, dentro de la normalidad. En el 55% se observó algún tipo de patología laríngea. Los cantantes deberían evitar el uso del tabaco, así como hacer revisiones frecuentes para detectar patologías laríngeas que pasan desapercibidas. Los valores aerodinámicos y acústicos muestran alteraciones con respecto a los valores normales de referencia. La presencia de vibrato y formante del cantante puede verse en el espectrograma y el LAST, así como el rango dinámico y vocal con el fonetograma. El uso del protocolo clínico y acústico proporciona importante información que completa la obtenida por el terapeuta vocal o el profesor de técnica vocal en el análisis perceptual de la voz profesional.
COMPARATIVE STUDY OF THE THERMAL EFFECT OF TWO KINDS OF OPTIC FIBRES OF HIGH INTENSIVE 810 NM DIODE LASER (IN VITRO STUDY)
Authors:   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University, Sofia, Bulgaria., Grozdanova-Uzunova Raya , Radeva Elka ,   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University, Sofia, Bulgaria., Kosturkov Dimitar ,   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University, Sofia, Bulgaria., Popova Evgeniya ,   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University, Sofia, Bulgaria., Uzunov Tsonko ,   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University, Sofia, Bulgaria.
Published: January 2021

Purpose: The aim of our in vitro study is to investigate the thermal changes on the outer root surface that occur after irradiation with a high intensive diode laser with two types of optical fibers. Material and Methods: The root canals of 24 extracted single-rooted and multi-rooted teeth (59 root canals) were prepared with Pro Taper Gold to F3 and treated with 810 nm diode laser for 8 s with circular movements from apex to orifices. Teeth are divided into two groups. A quartz light guide is used in the first group, and in the second group, the root canals are treated with an organically modified quartz light guide. The temperature changes were detected with FLIR - Т 330 Infrared Thermal Camera and the data was processed with FLIR Reporter 9 Professional software. Results: In 90% of cases, the temperature rise on the outer root surface is up to 8°C. In the first group with quartz fiber, the minimum increase in temperature is 2°C, the maximum is 11°C (in the cases with four root canals). When using the organically modified quartz fiber, the registered minimum increase in temperature is 1.2°C and maximum increase of 9.2°C (in cases with curved canals). Conclusion: Temperature changes on the outer root surface using an 810 nm diode laser are biocompatible. There is no statistically significant difference between the temperatures measured in the two types of optical fibers used - quartz and organically modified quartz light.
Postharvest Quality of Cut Zinnia Flowers Cultivated Under Different Irrigation Levels and Growing Seasons
Authors: Martins Rosária Da Costa Faria , Pêgo Rogério Gomes , Cruz Eleandro Silva da , Bueno Mateus Marques , Carvalho Daniel Fonseca de
Published: January 2021

The quality of floral stems depends on a set of pre-harvest factors which can influence their postharvest longevity. Although the identification of visual signs of senescence through scales is decisive in assessing the loss of floral quality in the postharvest period, this scale does not exist for zinnia flowers (Zinnia elegans Jacq.). Thus, the objectives of this study were to evaluate the effect of different irrigation levels and growing seasons on the postharvest longevity of zinnia floral stems; and to determine a senescence scale to assess their durability. Therefore, zinnia plants (cv. “Red California Giant”) were cultivated in pots inside a greenhouse in Seropédica (Rio de Janeiro, Brazil), with a randomized block design, under four irrigation levels (46%, 64%, 75% and 100% of the species’ water requirement) and two cycles (autumn-winter and winter-spring). At the end of each cycle, 48 stems from each treatment were harvested and placed in containers holding 300 mL of supply water. For all irrigation levels and crop cycles, there was an increase in the fresh stem weight on the first days after harvesting and the water absorption rate was higher on the first day of evaluation. The proposed senescence scale allowed us to evaluate the loss of floral quality in the postharvest period. The stems from both cycles had satisfactory results, mainly of commercial longevity and the score 5 on the scale, which represents 100% of the stems’ market value. The main postharvest results of the zinnia floral stems were not influenced by the irrigation levels.
Análisis ontosemiótico del proceso de instrucción en aplicaciones de la derivada con el estudiantado de Ingeniería Agroforestal
Authors: Vanegas Sevilla Ernesto Eduardo , Bermúdez Vargas Yahaira , Flores López William Oswaldo
Published: January 2021

Esta investigación ha analizado desde un enfoque ontológico y semiótico un proceso de instrucción en las aplicaciones de la derivada, permitiendo una evaluación del proceso tanto cuantitativamente como cualitativo, además permitió al docente ver las dificultades que se presenta en la resolución de los problemas matemáticos, teniendo en cuenta los elementos propios de las configuraciones epistémica. Así mismo para realizar la investigación se aplicaron los métodos cuantitativos y cualitativos que permitió comprender mejor la situación, haciendo un análisis y evaluación de la instrucción matemática. En la investigación participaron 28 estudiantes entre hombres y mujeres, Se aplicaron los siguientes instrumentos de recolección de la información: escala de actitud hacia las matemáticas; instrucción matemática sobre las aplicaciones de las derivadas en el contexto de la ingeniería agroforestal; observaciones indirectas; prueba inicial y la prueba final. De acuerdo a lo antes mencionado se logró evidenciar que los estudiantes tienen actitudes positivas hacia las matemáticas, sin embargo presentan obstáculos cognitivos básicos para la compresión y resolución de los problemas aplicando las derivadas. De igual manera se evidenció a través del estadístico no paramétrico que existe estadísticamente diferencia entre las medianas entre las pruebas, por tanto, el proceso de instrucción mejora la comprensión y rendimiento académico del estudiantado.
Financial Factors and Their Relative Importance Analysis in Peruvian Gold Mining Companies’ Stock Price
Authors: Vilcarromero Arbulu Jose Fernando , Castilla Raimundo Jorge Luis , Venegas Rodriguez Pedro Bernabe , Santillan Zapata Nivardo Alonzo , Deza Quispe Jimmy Alberth
Published: January 2021

The current research examined the relationship and relative importance of financial regressors on Peruvian gold mining companies´ stock prices from 2009 to 2018. Chosen regressors were earnings per share, dividend per share and dividend yield. Fixed effects analysis was employed for regression analysis and  decomposition for the relative importance study. Assumptions of stationarity, independence, no-multicollinearity, homoscedasticity and specification were fulfilled. Also, the values of Owen and Shapley were employed for decomposing . It was found that earnings per share and dividend per share had a positive effect on the dependent variable; while dividend yield was found to be negatively related to stock price. Moreover, by the usage of  decomposition it was noticed that the order of regressors importance was earnings per share, dividend per share and dividend yield. Then, it was stated that gold mining stock prices had a high dependence on profits and dividend payments in the analyzed period which can be related to the bearer’s expectations.
Ideal Investment Protection in Optimistic Perceptions: Evidence From the Indian Equity Options Market
Authors: Jose Babu , Varghese James
Published: January 2021

The study is an experiential assessment on the ability of the Indian equity options market to resist the adverse impacts that arise from unexpected changes in the underlying equity market, focusing on two distinct investor perceptions within optimistic dimension in the market, viz. the recovery phase and the growth phase, which were evident in the Indian market scenario post the period of financial upheavals due to global economic crisis during the latter half of 2000s. The risk mitigation capability of the options is examined in terms of long run integration and short run re-equilibrating relationship shown by near month calls and puts with varied stages of exercisability with their underlying equity segment in the National Stock Exchange of India. Further, the ideal hedge sizes of the options and the hedge gains resulting from affecting them in the investment profile are identified under minimum variance framework, using Diagonal BEKK GARCH. The results are indicative that all different options segments express to have the expected resistance ability during both bullish perceptions under consideration, and prove that optimal use of options with equity portfolio provides assured hedge gains in terms of reduction in un-anticipatable variances.
Influence of Health and Safety Training, Safety Monitoring and Enforcement of Compliance on Employee Efficiency in Manufacturing Firms
Authors: Obong Morgan Morgan , Amadi Christian , Ekpenyong Okon Emmanuel , Harry Emu Winifred , Edodi Hope Ukam
Published: January 2021

The purpose of the study is to investigate the influence of health and safety training, safety monitoring, and enforcement of compliance on employee efficiency in manufacturing firms. The research employed the quantitative approach involving a descriptive survey. A sample size of 360 respondents was randomly selected for the study. A questionnaire instrument was used in gathering primary data for the study. Confirmatory Factor Analysis (CFA) was used in providing a comprehensive validation of the measurement instrument. The required inferential statistics including normality, multicollinearity, and heteroscedasticity tests were performed and were satisfactory. Structural Equation Model (SEM) was used to estimate structural relationships between health and safety training, safety monitoring and enforcement of compliance on employee efficiency. The research results showed that health and safety training has a significant positive effect on employee efficiency with a p-value of 0.000; safety monitoring has a significant positive effect on employee efficiency with a p-value of 0.000 and enforcement of compliance has a significant positive effect on employee efficiency with a p-value of 0.000. The research brings to the fore and creates awareness on the influence of health and safety training, safety monitoring, and enforcement of compliance to safety and health standard towards enhancing workers' safety, health and welfare for improved employee efficiency. Manufacturing firms should ensure adequate health and safety training and proper safety monitoring and enforcement of compliance to safety and health standard to reduce accidents and improve employee efficiency and performance.
WYKORZYSTYWANE W PENITENCJARYSTYCE METODY BADAWCZE NA PRZYKŁADZIE ANALIZY CZASOPISMA NAUKOWEGO „PRZEGLĄD WIĘZIENNICTWA POLSKIEGO" W LATACH 2018-2019
Authors: Czarkowski Jakub Jerzy , Strzelec Marcin
Published: January 2021

Penitencjarystyka jako nowo formująca się dziedzina wiedzy poszukuje rozwiązań w zakresie metod badań. Rozwiązania metodologiczne powinny uwzględniać złożoność i wieloaspektowość badań i problemów w obszarze penitencjarystyki. Prezentowany artykuł przedkłada propozycję pewnych rozwiązań w tej dziedzinie, stworzoną na podstawie analizy o charakterze hermeneutycznym, w zakresie problematyki badań penitencjarystycznych.
Essential oils as growth-promoting additives on performance, nutrient digestibility, cecal microbes, and serum metabolites of broiler chickens: a meta-analysis
Authors: Irawan Agung , Hidayat Cecep , Jayanegara Anuraga , Ratriyanto Adi
Published: January 2021

Objective: The purpose of this meta-analysis was to evaluate the effect of dietary essential oils (EOs) on productive performance, nutrient digestibility, and serum metabolite profiles of broiler chickens and to compare their effectiveness as growth-promoting additives against antibiotics.Methods: Peer-reviewed articles were retrieved from Web of Science, Science Direct, PubMed, and Google scholar and selected based on pre-determined criteria. A total of 41 articles containing 55 experiments with 163 treatment units were eligible for analyses. Data were subjected to a meta-analysis based on mixed model methodology considering the doses of EOs as fixed effects and the different studies as random effects.Results: Results showed a linear increase (p<0.001) on body weight gain (BWG) where Antibiotics (FCR) and average daily feed intake decreased (p<0.001) linearly with an increasing dose of EOs. Positive effects were observed on the increased (p<0.01) digestibility of dry matter, crude protein, ether extract, and cecal Lactobacillus while Escherichia coli (E. coli) population in the cecum decreased (p<0.001) linearly. There was a quadratic effect on the weight of gizzard (p<0.01), spleen (p<0.05), bursa of fabricius (p<0.001), and liver (p< 0.10) while carcass, abdominal fat, and pancreas increased (p<0.01) linearly. The dose of EOs linearly increased high density lipoprotein, glucose, protein, and globulin concentrations (p<0.01). In comparison to control and antibiotics, all type of EOs significantly reduced (p<0.001) FCR and tended to increase (p<0.1) BWG and final body weight. Cinnamaldehyde-compound was the only EOs type showing a tendency to increase (p<0.1) carcass weight, albumin, and protein of serum metabolites while this EOs together with EOs-Blend 1 decreased (p<0.01) E. coli population. Low density lipoprotein concentration decreased (p<0.05) with antibiotics and carvacrol-based compound when compared to the control group.Conclusion: This evidence confirms that EOs are suitable to be used as growth promoters and their economical benefit appears to be promising.
A Review of Aluminum Alloy Fabricated by Different Processes of Wire Arc Additive Manufacturing
Authors: WANG Zeli , ZHANG Yuanbin
Published: January 2021

Due to the advantages of high deposition rate, low equipment cost and high material utilization rate, aluminum alloy fabricated by wire arc additive manufacturing (WAAM) has been widely concerned by scholars and scientific institutions. This article reviews the features of aluminum alloy fabricated by different WAAM processes (GMAW-based, GTAW-based, CMT-based, PAW-based). Research status of the porosity, dimensional accuracy, microstructure and mechanical properties of aluminum alloy in different process is analyzed. General tendency of microstructure and mechanical properties were discussed, and suggestions for the future research direction were put forward including mandatory constraint on molten pool and structural topological optimization.
Comparison of Native and Regenerated Antheraea Pernyi Silk Fibroin
Authors: DUAN Yu , CHEN Xin , SHAO Zhengzhong
Published: January 2021

The regenerated Antheraea pernyi silk fibroin (RASF) was harvested by dissolving the silk fibers in a calcium nitrate solution. XRD result demonstrated that both native and regenerated Antheraea pernyi silk fibroin involved the α-helix conformation, and DTG curves showed that their thermal decompositions were quite similar and proceeded three steps. However, rheological measurements figured out that the molecule weight of RASF decreased from 246 kDa to 199 kDa, comparing with native Antheraea pernyi silk fibroin. Also, the tensile properties of the RASF film, which were the same to those of regenerated Bombyx mori silk fibroin film, were observed.
Study on the Biotribological Properties of Ti6Al7Nb and Ultra High Density Molecular Weight Polyethylene at Different Lubricant Temperature
Authors: WANG Songquan , HU Ningning , YANG Shuo , HAN Da , SUN Deqi , ZHANG Dekun
Published: January 2021

Higher frictional heat will be produced during the service process of artificial hip joint prosthesis in vivo than natural joint, which would cause the rise of the temperature of synovial fluid and the change of the wear resistance of prosthetic materials. In this work, the biotribological properties of ZrO2/Ti6Al7Nb and ZrO2/UHMWPE pairs at different lubricant temperatures were investigated. The results show that there is a strong correlation between the wettability and average friction coefficient of Ti6Al7Nb, while there is also a strong correlation between the wettability and mass loss of UHMWPE. The wear loss of Ti6Al7Nb and UHMWPE decreases gradually and the friction coefficient increases gradually as the lubricant temperature rises from 20 ℃ to 46 ℃, which is mainly affected by the precipitation process of protein. As a protective layer, it can reduce the wear rate, but as a third body, it can participate in the friction process and increase the friction coefficient. The characteristics of lubricant change greatly at 60 ℃, but the increase of temperature is not the only reason for the precipitation of synovial protein. The synergistic effect with the friction process results in a significant change on the wear mechanism of Ti6Al7Nb and UHMWPE under this condition. The wear mechanism of Ti6Al7Nb is mainly abrasive wear and adhesion wear at different lubricant temperature. With the increase of lubricant temperature, the proportion of adhesion wear mechanism becomes larger. Due to the low thermal deformation temperature and thermal conductivity, the wear mechanism of UHMWPE changed obviously at 60 ℃, and the wear morphology is mainly plastic deformation.
Synthesis and Characterization of TiC-reinforced Metallic Glass Composite Coatings
Authors: YAZICI Ziya Ozgur
Published: January 2021

In this paper, the Co-based metallic glass coatings deposited on soft metal substrates by pneumatic squeezing method were investigated. Also, the effects of TiC additions (%0-10) on the mechanical properties of the coatings were discussed in terms of hardness measurements. Microstructural observations have shown that the coatings with a thickness range of about 20-30 µm can be produced as non-porous layers in either entirely amorphous (0-6% TiC) or composite (8-10% TiC) structures. The glassy and TiC-reinforced glass composite coatings exhibit good adhesion characteristics and form a harder layer with the average hardness values between 1000 and 1600 Hv respectively. The hardness measurements evaluated together with XRD and EDX analyses showed that (Ti,Ta)C crystals precipitated in the amorphous matrix are responsible for further increase of the coatings hardness value up to 1600 Hv. The results also provide clues for mass manufacturing route in one step synthesis of the metallic glass and their composite coatings.
Die neuen Kindergrundrechte der Hessischen Verfassung und ihre Auswirkungen auf die Stellung des Landesschülerrats
Authors: Donath Philipp B.
Published: January 2021

Im Oktober 2018 wurden ausdrückliche Kindergrundrechte in die Hessische Landesverfassung aufgenommen, die sich an den Kernprinzipien der UN-Kinderrechtskonvention orientieren und die ein Vorbild für die spezifischen Kindergrundrechte des Grundgesetzes sein könnten, über deren Aufnahme derzeit intensiv debattiert wird. Philipp B. Donath stellt den Inhalt der neuen Kindergrundrechte der reformierten Hessischen Verfassung vor und untersucht, ob die Verfassungsänderung Auswirkungen auf die Stellung des Landesschülerrats in Hessen entfaltet.
Die Ermittlung des Kindeswillen in Sorge- und Umgangsverfahren im Vergleich von Deutschland und Österreich
Authors: Klein Joachim
Published: January 2021

Ausgehend von aktuellen Reformbestrebungen im Familien- und Verfassungsrecht werden dieMöglichkeiten in Deutschland und Österreich verglichen, den Kindeswillen durch Anhörung und Vertretung zu ermitteln. Dabei offenbart sich Verbesserungspotenzial im Bezug auf ent­scheidungsfähige Minderjährige.
Indigenous Peoples’ Free, Prior and Informed Consent (FPIC) and the World Bank Safeguards: Between Norm Emergence and Concept Appropriation
Authors: Moerloose Stéphanie de
Published: January 2021

The question of the consent of indigenous peoples is at least as old as colonization. Indeed, the consent of indigenous peoples was already an issue at the heart of treaty-making between colonial settlers and indigenous peoples. The issue of indigenous peoples’ consent, understood as their Free, Prior and Informed Consent (FPIC), has been re-emerging and gaining acceptance internationally in international Human Rights law over the last 30 years. When the new World Bank safeguards were adopted in 2016, one of the most discussed topics during the consultation rounds had been the integration in the safeguards of the concept of the FPIC of indigenous peoples, as it had been notoriously absent from the previous safeguards. Finally, FPIC was made part of the new safeguards. This paper first maps the concept of FPIC under international law from a postcolonial perspective. Then, it attempts to analyze the processes of operationalization of the concept by the World Bank in the new safeguards, drawing on Human Rights and on law and development literature. The paper argues that there is a tension between the re-emergence of FPIC as a customary norm and the fragmentation of the interpretations of the concept of consent by different actors. The operationalization of the concept of FPIC, understood as a negotiated process rather than a process of self-determination, may in fact limit its remedial objective and diminish its quality as a resistance tool.
La mise en œuvre du droit d’accès à l’eau potable en République Démocratique du Congo
Authors: Lumingu Yves-Junior Manzanza , Masuta Dieu-Merci Ngusu
Published: January 2021

With almost half of the continental water supply, the Democratic Republic of the Congo (DRC) still ever remains one of the countries with relatively a low access to safe drinking water for the population. It is this paradox that this paper aims to analyze. The main question is about the real impact of the constitutional recognition of a right of access to safe drinking water and the role of the public authorities in the implementation of this human right. The exercise consists and proceeds by a brief explanation and analysis of the content and implications of what should be considered as a “right of access to safe drinking water” before standing on the evaluation of the roles of different and main public actors involved in the process of implementing this right. It emphasizes on the three classic Institutions of the State, excluding, however, under the bloc of Executive Power, the President of the Republic who has a residual regulatory power. If the legislative and executive Powers show some weaknesses in the implementation of this right, not only because of the delay which characterizes their various actions, but also and especially because of a notorious absence of a political implication, the judicial Power seems to be actually inactive although the great mission of protecting and guaranteeing fundamental rights and public liberties that the Constitution has assigned to it. However, this attitude should not be ascribed to the judicial Power, noticing an alarming lack of a culture to claim on behalf of the population which is its beneficiary. Thus, in spite of the nature of this right which subjects it to the principle of "progressive execution", it cannot be allowed any inaction, delay or fitful and insufficient interventions on behalf of those public actors which should really take an advantage of all potentialities of this country to provide Congolese people with a safe drinking water supply.
Cheating in Online Courses for Financial Aid Fraud in the U.S.
Authors: Owen Robert
Published: January 2021

This manuscript reviews issues that differentiate traditional academic cheating from course misconduct that is motivated by a desire to defraud financial aid services in the U.S. Past research on college student cheating has assumed that cheaters are driven by an incentive to obtain undeserved grades in college in order to ultimately obtain a degree. However, researchers on academic dishonesty, professors, and college administrators might not realize that online class members can include virtual "straw" students who are puppets of a financial aid fraud ring leader. Cheating behaviors of straw students differ from cheating behaviors of actual, legitimate students. This has implications for those who attempt academic dishonesty research in online environments, and it has implications for course-level professors and university administrators who are in a "should have known" position with regard to discovery of a financial aid fraud ring.
« On peut pas rien faire, même si on crie, il nous écoute même pas » : une expérience du droit à la consultation pour la communauté innue d’Ekuanitshit
Authors: Farget Doris
Published: January 2021

Le droit d’être consulté et d’être accommodé a été conféré aux peuples autochtones sur le fondement de l’article 35 (1) de la Loi constitutionnelle de 1982, par la Cour suprême du Canada, dans les arrêts R. c. Sparrow et Nation Haïda c. Colombie-Britannique. Alors que ce droit exige bonne foi, dialogue et compréhension de l’autre partie, la vigilance des communautés dans sa mise en oeuvre par les gouvernements constitue aujourd’hui un élément de leur vie politique et juridique quotidienne. Ce droit a largement été examiné sous l’angle de son régime juridique et des formes qu’il peut prendre. Cependant, peu de travaux portent sur cette norme telle qu’elle est vécue, expérimentée et ressentie dans la vie quotidienne des membres des communautés autochtones. C’est en envisageant le rapport entre le droit et les émotions ainsi que selon la perspective de participantes et de participants innus de la communauté d’Ekuanitshit que l’auteure propose une nouvelle lecture du droit à la consultation et à l’accommodement.
La prise en considération des émotions en médiation : une intervention essentielle et délicate
Authors: Lafond Pierre-Claude
Published: January 2021

Tout conflit étant émotif, l’expression des émotions dans le contexte d’une médiation constitue une étape cruciale dans ce mode amiable de règlement des conflits. Les émotions peuvent, en effet, favoriser le processus de règlement en procurant un meilleur éclairage à la nature du conflit, autant qu’elles peuvent le freiner en empêchant le dialogue entre les parties. Dans son intervention, le médiateur est appelé à les prendre en considération, à en favoriser l’expression constructive et à les gérer. À cet égard, il doit faire preuve d’une grande intelligence émotionnelle et préserver la neutralité de son rôle complexe. Cette forme d’intelligence mérite d’être développée dès les études de droit où les émotions sont étonnamment évacuées des programmes universitaires et de l’école professionnelle. Pareille approche implique rien de moins qu’une redéfinition du rôle de l’avocat, intervenant sensible aux émotions, à l’écoute de l’autre et recentré sur la relation d’aide dans une perspective non adversative.
Yendo más allá: audiencias internacionales y medios de comunicación de servicio público
Authors: Costa Gálvez Lola
Published: January 2021

La contribución a la sociedad es, en términos generales, la principal razón de ser de los medios de comunicación de servicio público. En un contexto de superación de la comunicación tradicional es necesario abrazar la innovación como rasgo distintivo de la tradición pública en el escenario multiplataforma.
Growth Strategies & Internationalization for SMEs: an introduction to the special issue
Authors: MATARAZZO MICHELA , PENCO LARA , RAITH MATTHIAS
Published: January 2021

The increasing market globalization and the consequent enlargement of the market boarders continues to provide a multitude of growth opportunities to small and medium enterprises (SMEs). These opportunities include but are not limited to the expansion abroad through internationalization strategies. They refer also to the innovation of business models triggered by the fact that the SMEs operate in global sectors, and they can utilize global innovations and digital technologies to compete. The joint pursuit of digitalization and internationalization has proven to be most powerful in facilitating the SMEs growth processes on a global scale. The advantages that accrue to SMEs from the usage of digital technologies go beyond the mere Internet and rest mainly in the possibility to create a deep relationship with international customers, for example through the usage of social networks. This does not necessarily imply that the firms operate in two or more locations through trade, investments, and alliances, since SMEs can keep their location in the home country, while expanding their market borders by serving international customers, developing the global power of the brand and the international corporate image. At the same time they have to face international competitors in their home country as well. … to be continued
A preliminary comparative study of percutaneous CT-guided cryoablation with surgical resection for osteoid osteoma
Authors: Meng Liangliang , Zhang Xiao , Xu Ruijiang , Wu Bin , Zhang Xiaobo , Wei Yingtian , Li Jing , Shan Husheng , Xiao Yueyong
Published: January 2021

Background

The traditional treatment for osteoid osteoma is the nidus’ surgical resection, which was difficult to eradicate with more invasive and complications because of osteosclerosis surrounding the nidus. This study aimed to analyze the efficacy and safety of percutaneous CT-guided cryoablation of osteoid osteoma at different sites (especially refractory sites such as the spine).

Methods

Fifteen patients with osteoid osteoma who underwent cryoablation at our institution were analyzed retrospectively on their imaging data and clinical visual analog scale (VAS) pain scores before and after the procedure. Fifty-three patients underwent surgical resection during the period were also included in this study as a control group. Treatment efficacy was assessed primarily by comparing the differences in VAS scores at different time points in each group of patients by paired-sample t-test. Differences in length of hospital stay and complications between the two groups were also compared.

Results

The technical success rate was 100% in both the cryoablation and surgical resection group. Cryoablation had a significantly shorter hospitalization time than surgery (p = 0.001). Clinically, the post-operative VAS scores were all significantly improved compared to the pre-operative period, and the clinical cure was achieved in both groups. Surgical operations had more complications than cryoablation, although there was no significant difference. In the group of cryoablation, only one patient had mild numbness of the left lower extremity, which relieved itself; two patients had mild post-operative pain. No patients in the cryoablation group experienced recurrence during the follow-up period. In the surgery group, three of the patients experienced massive bleeding (>500 ml), and two underwent transfusion therapy. Only one patient in the surgical resection group experienced a recurrence at 29 months postoperatively and underwent a second resection. All patients had local scars on the skin after surgical resection.

Conclusion

Cryoablation is a minimally invasive, safe, and effective treatment strategy for osteoid osteoma, and is fully comparable to surgical resection.
Isolation, production and application of fibrinolytic enzyme from fermented food sources
Authors: Singh Nitika , Shera Shailendra Singh
Published: January 2021

The accumulation of the fibrin in bacterial fibrinolytic enzymes finds applications to treat and prevent cardiovascular diseases which fail in hemostasis that leads to the formation of undesirable blood clots in the blood vessels leading to condition called thrombosis. The fibrinolytic enzymes from food grade organisms are useful for thrombolytic therapy. Conventional thrombolytic agents such as streptokinase, nattokinase etc.  Nattokinase is one such fibrinolytic enzyme with a wide range of applications in Pharmaceutical industry, health care and medicine etc. Hence, potent blood-clot dissolving protein used for the treatment of cardiovascular diseases is produced by the bacterium Bacillus subtilis during the fermentation of soybeans to produce Natto. The health benefits of some fermented foods are synthesis of nutrients, prevention of cancer, diabetes due to presence of functional microorganisms, which possess probiotics properties, antimicrobial, antioxidant, etc. The first report of fibrinolytic enzyme production of cow dung used as a cheap substrate from Bacillus species in SSF has been given earlier. This review describes different isolation methods which enable the screening and selection of promising organisms for industrial production. The purification and properties of these fibrinolytic proteases is discussed, and the use of fibrinolytic enzyme. In order to obtain Bacillus species producing fibrinolytic enzymes, the fermented food sample such as sprouted grain and processed grain etc were used. The heat tolerant isolates initially were selected for catalase test. Fibrinolytic activity of the selected isolates was determined by using Fibrin plate assay.  From the above work, it can be concluded that the fibrinolytic enzyme produced by Bacillus from fermented food samples had the ability to degrade the fibrin and hence can be used for functional food formulation.
Knowledge and Attitude of Rural Women towards Agroforestry Practices in Kaduna State
Authors: Olagunju O. E. , Oluyaire B. , Ganiyu L. , Olorukooba M. M. , Olafemi S. O. , Tor L. G.
Published: January 2021

Agroforestry practices offer a solution to the problem posed by the high demand on land and stands as a means of halting the vicious circle of deforestation, soil erosion and degradation. This study assessed the knowledge and attitude of rural women towards agroforestry practices in Kaduna State. The objectives of the study were to describe the socio-economic characteristics of rural women, examine the sources of information on agroforestry, find out the level of knowledge of rural women on agroforestry practices and ascertain the attitude of rural women toward agroforestry practices. From the thirteen (13) districts in Chikun LGA, six districts were randomly selected. Twenty women were sampled from each district to give a total of one hundred and twenty (120) respondents. Descriptive and inferential statistics was used to analyze the data. Knowledge test and Mean score were used to determine the knowledge and attitude of rural women towards agroforestry practices. Inferential statistics were used to test the hypotheses. The mean age was 30.23 years. Silvopastural, Taungya system and Tropical shelter wood system were the main types of agroforestry practices. Chi-square showed that there were significant relationships between some selected socio-economic characteristics such as age ( =75.625, p = .001), membership of organization ( = 16.499, p = .003), educational status ( = 11.704, p = .020) and agroforestry practices. Correlation analysis showed that there were significant relationships between knowledge (r = .652, p = .002), attitude (r = .264, p = .001) and agroforestry practices. In conclusion, rural women have low level of knowledge and unfavourable attitude towards agroforestry practices. This study recommends that agroforestry training should be conducted for the rural women in order to increase their knowledge level which will in turn lead to a favourable attitude towards agroforestry practices.
Informal Saving Group: A Pathway to Financial Inclusion among Rural Women in Nigeria
Authors: Oranu Chizoba Obianuju , Onah Ogochukwu Gabriella , Nkhonjera Elizabeth
Published: January 2021

Financial inclusion is a key to economic development and has continually gained increased attention across countries, particularly in developing countries where there is relatively high rate of financial exclusion. In Nigeria, despite several measures taken to promote financial inclusion, there is still high rate of financial exclusion among rural women, as rural people and women are generally more financially excluded. This article provides an overview of financial inclusion, analysis of the patterns and dynamics of financial inclusion in Nigeria and the pathway for promoting financial inclusion among rural women is discussed. The article posits informal savings groups as a potential pathway to financial inclusion among rural women, by reviewing journal articles and grey literatures. The review shows that most rural women are participating in informal saving groups, but these saving groups are however faced with some challenges, such as limited income base, inability to receive remittance and vulnerability to theft. The pathway to financial inclusion among rural women discussed include, sensitizing these rural women through financial literacy, thereafter fostering informal saving groups which most rural women are already aware of their operations and thirdly, linking these groups to formal financial institutions. We conclude that informal saving groups have great potentials of accelerating financial inclusion among rural women, therefore Government should carry out financial literacy campaigns among rural women and policies that promote financial inclusion should be designed building on informal saving groups.
Extracting a Bounded Region from a Map Using Flood Fill Algorithm
Authors: Shuaeb S. M. Abdullah Al , Kamruzzaman Md. , Ali Mohammad Hazrat
Published: January 2021

Extracting the needed portion from a bounded region is an important task in image processing. Editing a map and extracting a region from the map is challenging. It is useful in some contexts to have a region in a separate sheet. In this image processing, we have used the Flood Fill algorithm to extract a region from the image map. To achieve that goal, we had worked in our study to separate a bounded region on a map. Usually, a scanned map may contain a lot of useless information. So we have to process the image to remove useless information from the map. We had quantized the image to a binary one. In the second phase, we have applied a gray color to separate the desired position from a map. Our main objective of the study to extract a bounded region from mapping an image that contains useless information and removes it. We have experimented with several maps and it works successfully.
Evaluation of Wine Purpose Varieties of Grapes under the Environmental Condition of Malwa Plateau
Authors: Anjanawe S. R. , Naruka I. S. , Sharma Asheesh , Mishra Pradeep
Published: January 2021

The quality of wine totally depends on the variety of grape. Grapes are unique among fruits. Ripe, they contain sufficient sugar and an appropriate amount of acid so that when they ferment enough alcohol is produced to make a palatable wine that is protected against imminent spoilage. In present investigation experiment was carried during 2014 to 2016 for 3 year. Treatment performance was observed using Tukey’s mean separation method in 95% percent confidence interval. Under this experiment grape ten variety tested under different characteristics. From the result it is found that number of mature and fruitful cane maximum found in Shiraz variety 39.61 and 22.05. Total soluble Solid (TSS) and acidity is important aspect for wine preparation. Minimum TSS and acidity was found in Shiraz variety 0.62 and 18.5. Highest yield variety was recorded in Grenache. From the study, it is observed that performance of Shriraz variety is most suitable for wine preparation in Malwa plateau.
Antioxidant and Ethnobotanical Study of Strychnos icaja Baillon (Loganiaceae) from Gabon
Authors: Samseny Reine Raïssa Rolande Aworet , Mengome Line-Edwige , Angone Sophie Aboughe
Published: January 2021

Aim: In plants, are found large amount of vitamin (A, B, C, E), mineral (Zn, Cu, Se) and biochemical (glutathione, taurine, phenol acids) substances which also have a well-known antioxidant power. These substances have phytotheraptic applications in the fight against aging caused by oxidative stress and are oxidative component of acute pathologies: (infectious, traumatic, inflammatory and allergic). Strychnos icaja Baillon (Loganiaceae) is a tropical shrub common in the tropical forest of Central Africa. Strychnos species is mainly used by the local population as an arrow or ordeal poison, for treatment of haemorrhoids and malaria by the Pygmies tribes from Cameroon due to its magic-medical property. This study determined the medicinal uses of Strychnos and assessed its antioxidant potential.

Methodology: Extracts of alkaloids, aqueous, ethyl acetate, dichloromethane and butanol from Strychnos were evaluated for their antioxidant properties. An ethnobotanical survey of 20 traditional therapists was carried to obtain the medicinal uses of the root of Strychnos icaja.

Results: 1,1-diphenyl-2-picryl-hydrazyl (DPPH) test shows good antiradical activity. Antioxidant activity by the ferric reducing antioxidant power (FRAP) test, show that Strychnos total alkaloids of the roots have a value of 5.94 ± 0.14mmol EAA/g that is significantly close from Ascorbic acid (5.86 ± 0.51 mmol EAA/g). The results of survey of traditional therapists identified six indications of this plant, namely in the treatment of haemorrhoids, against ear infections, male urethritis, rheumatic and dental pain and sterility in women.

Conclusion: The Strychnos icaja possesses antioxidant activity, this can find use in the treatment of inflammatory diseases.
Sabicea brasiliensis Wernham: Antioxidant Activity, Proliferative Effect and Modulation of Vascular Adenine Nucleotides Metabolism
Authors: Oliveira Douglas Souza , Correia Mikaelle Costa , Araújo Bruna Juber de , Silva Fernanda Cardoso da , Lima Paula Marynella Alves Pereira , Gomes Marcos de Souza , Araújo Thaise Gonçalves de , Fürstenau Cristina Ribas
Published: January 2021

Aims: Study addressed the antioxidant activity (AA) of Sabicea brasiliensis roots crude extract (CE), ethyl acetate (EAF), and hydro-methanolic (HMF) fractions, and its impact on cell viability and adenine nucleotide hydrolysis in vascular A7r5 cells.

Materials and Methods: AA of CE, EAF and HMF were determined by the inhibition of the DPPH and ABTS radicals. Total phenolic content was evaluated by Folin-Ciocalteau. Cell viability was determined by MTT assay at different concentrations (62.5; 125; 250 and 500 μg·mL-1) of EAF and HMF after 24, 48 and 72 h. Ectonucleotidase activities were evaluated by colorimetric methods after 48 h EAF or HMF treatment.

Results: The highest AA was observed for CE (76%), followed by EAF (46%) and HMF (23%). Phenolic content followed the same pattern. After 48 h, EAF increased A7r5 vascular cells viability by 40%, 40%, 62% and 25% at distinct concentrations, respectively; while HMF augmented it by 50% (500 μg·mL−1). Finally, after 48 h EAF (500 μg·mL−1) decreased about 50% of ATP and ADP metabolism while HMF inhibited 56 and 59% the hydrolysis of NPP substrate (at 125 and 250 μg·mL−1).

Conclusion: Study confirmed the high AA of S. brasiliensis, which influences vascular cells proliferation and purines metabolism, pointing to potential cellular pathways that may support the popular use of this plant.
Breeding for Early Flowering in Chickpea (Cicer arietinum L.) – A Key Strategy to Accelerate Chickpea Productivity: A Review
Authors: Nunavath Aswini , Murthy K. Gopala Krishna , Hegde Venkatraman , Reddy S. Madhusudan
Published: January 2021

Chickpea is one of the most important pulse crop cultivated across the globe which is conventionally a low-input crop that is being cultivated mostly in moisture deficient rainfed environments during post-rainy season. The crop is being severely affected with various biotic and abiotic stresses among which, drought and heat stress are considered as serious constraints limiting chickpea productivity in sub-tropical regions. Several strategies were adopted to enhance the productivity under drought and heat stress environments among which, the development of early flowering varieties is one of the key strategies gaining importance in recent past. Some of the early / super early varieties like ICCV 2, JG 11, JG 14, KAK 2, JAKI 9218, ICCV 96029 and ICCV 96030 were developed during the last three decades. One of the most significant milestones in breeding for early varieties is the identification of four genes efl-1, efl-2, efl-3 and efl-4 governing early flowering by using various lines viz., ICCV 2, ICCV 96029, ICC 5810, BGD 132 and ICC 16641. Several QTLs controlling time of flowering were also mapped on linkage groups LG1, LG2, LG3, LG4, LG5, LG6 and LG8. The information on inheritance of time of flowering, correlation between early flowering with other yield attributing traits like number of pods per plant, number of seeds per pod, seed size, 100-seed weight, identified QTLs for early flowering and abiotic and biotic stresses tolerance may be useful for developing early maturing varieties that posses tolerance to various abiotic stresses by using different conventional and biotechnological approaches.