bluuebunny/crossref_metadata_2025 huggingface dataset:
Bile salts and ferric iron-induced PMRAB dependent resistance to camps in EHEC O157:H7
Authors: Francis Aju-sue
Published: May 2021

Enterohaemorrhagic Escherichia coli O157:H7 (EHEC) colonization of the gastrointestinal tract is critically dependent on its ability to sense and respond to the external environment. This research aims to evaluate the contribution of bile salts- and ferric iron-induced resistance in EHEC to cationic antimicrobial peptide (CAMP) and the roles of pmrAB and am operon in these events. Results showed that EHEC, treatment with either bile salts or ferric iron induced a dose-dependent resistance to Polymyxin B. This resistance phenotype was lost in each of the pmrA and pmrB mutants. PMB resistance in EHEC was also dependent on the concentration of magnesium and on pH, suggesting the involvement of another two component system, PhoPQ. Mutagenesis of the iron-binding site of PmrB abrogated the induced resistance phenotype. The results of this study provide novel insights critical for our understanding of the molecular basis of pathogenesis and may provide new insights toward prevention strategies.
In the slumber of the interactive: digital interactive technology and the myth of empowerment in consumer culture
Authors: Aiken Emma Jo
Published: May 2021

"Paying special attention to the development of Interactive Television (lTV), in part one I will examine DIT development in order to construct a framework for understanding how technology, as both object and agent, is implicated in the persistence of consumer culture. In part two, I will broaden my perspective so I can address the notion of interactivity in general. By taking a deeper look at the notion of interactivity, I will examine the ways that DIT impacts upon the agency of its users. Through my object/agent framework I will challenge the taken-for-granted assumptions about technology that emerge through the discourses of consumer culture, and analyse the impact of DIT on human agency. I will argue that in many ways, the experience of technology within consumer culture is that of a dream where one believes they are awake. In other words, our experiences are those of a culture trapped in the slumber of the interactive"--From Introduction page 3.
Collateral beauty a digital artwork of a poet's spirit
Authors: Lary Maryam
Published: May 2021

In a digital age, we try to be innovative and creative when interacting with our audience. With an interest in written poetry, I went to look for ways to present poetry in an interactive way. This paper/project explores the potential of poetry in a digital form. It explains the process of combining visual art with technology and digital sensory to communicate poetry in a new format. This paper will explain the idea behind the project, the methodology used to apply it, the materials, and the technology embedded in it.
The Rhetorical Construction of Corporate Public Apologies
Authors: Lai Amanda
Published: May 2021

In this major research paper (MRP), I analyzed the ways in which rhetorical strategies are used in the construction of corporate public apologies. Organizational reputation management has become increasingly important in the digital age. When companies are criticized or accused of wrongdoing, it is essential to issue a timely and effective response to salvage stakeholder relationships. Speaking from the Rhetorical Tradition, Aristotle demonstrated that the art of persuasion is largely built upon three rhetorical appeals: the appeal to pathos (emotion), ethos (character), and logos (logic). Through methods of coding and rhetorical analyses, I examined 7 corporate public apologies released by high profile companies between 2008 and 2012. I found that corporate public apologies tend to appeal to ethos more than any other means of persuasion. Reflecting good organizational character is therefore, germane to organizations in crisis. Employed the least was the appeal to logos, or logic. I found that this rhetorical strategy was used primarily to strengthen other persuasive appeals such as appeals to emotion or character. Logos, used in isolation, was rare and arguably ineffective.

It is in my opinion that the focus on rhetorical strategies is lacking in public relations literature. To conclude, I made several recommendations to organizations responding to criticisms or accusations of misconduct. These recommendations are to be taken with the understanding that their effectiveness was not considered for this project.
Budget Mechanism: Methodological Approaches to and the Practice of Budget Decentralization
Authors:   National University «Yuri Kondratyuk Poltava Politechnic», Onyshchenko S. V. , Berezhna A. Y. ,   National University «Yuri Kondratyuk Poltava Politechnic», Filonych О. М. ,   National University «Yuri Kondratyuk Poltava Politechnic»
Published: May 2021

Theoretical approaches to the formation of the budget mechanism as a form of practical implementation of budget policy are made more profound; budget decentralization as a budget regulating and stimulating mechanism in the current situation in Ukraine is studiedl and perspective directions of introducing various budget mechanism are outlined. The mechanistic concept was applied to budgetary relations, thus becoming the basis for highlighting the main features of the budgetary mechanism, determining the main provisions of forming the budgetary mechanism. Emphasis is placed on the relationship between budget policy, which is manifested through the dialectical unity of budget strategy and tactics, and the budget mechanism. The budgetary mechanism is defined as a system of measures aimed at influencing the mobilization of optimal funds, their efficient distribution and rational use in order to ensure macroeconomic balance, sustainable development and preservation of state sovereignty, as defined by state policy. It is suggested to integrate the constituent elements of the budgetary mechanism into the appropriate subsystems within its framework, through which the main functions of the budgetary mechanism aimed at achieving the goal are manifested. In order to study a subsystem of the budgetary mechanism, namely the regulatory mechanism, the peculiarities of the manifestation of budgetary decentralization in Ukraine are analyzed. It is proved that the introduction of the subsidiarity principle while constructing the decentralized model of inter-budgetary relations in the unitary Ukraine is currently the best option for it to find a balance between the advantages of budgetary federalism and the unitary form of budgetary relations. Systemic problems of budget decentralization have been identified, namely: decentralization occurs by bringing in new persons to act on the national level; it does not affect the mechanisms of autonomy in decision-making on taxation and the formation of additional sources of local budget revenues; statutory tax benefits for the local tax mobilization significantly reduce the financial resources of local budgets; local budgets remain significantly dependant from the state; in the regulation of local budget revenues, preference is given to transfer instruments, and the share of budget-generating taxes is reduced. Given the theoretical construct of the public sector theory, which gives grounds to the formation of local budget revenues, and the results of the research on budget regulation in Ukraine, budget decentralization processes are only proven to be pretentious, and the need to improve the division of budget authority is identified, while emphasis is made on financial self-sufficiency.
The European Green Deal: A Roadmap for Sustainable Nature Management in a Decentralized Environment
Authors:   Polissia National University, Dankevych V. Y. , Dankevych Y. M. ,   Zhytomyr National Agroecological University, Bondarchuk N. V. ,   Polissia National University, Strilchuk V. A. ,   Polissia National University
Published: May 2021

The article aims at studying the results of and prospects for the further implementation of the European Green Deal, a roadmap for sustainable nature management. The research results prove the expediency of implementing the European Green Deal aimed at providing balanced nature management amidst decentralization processes. Taking into consideration the content of the "European Green Deal" communiqu? provisions presented by the European Commission, the key areas for its implementation are presented. In particular, such areas are as follows: modernization and transformation of the economy in order to improve the climate; production of clean, affordable and safe energy; mobilization of industry towards a circular economy; intensification of the transiting to sustainable and intelligent mobility; development of a fair, healthy and environmentally friendly food system for the population. It is substantiated that the effective implementation of the Green Deal ideas requires national public authorities to form a holistic vision of the stages of its multilevel implementation, with respect to the economic, social and environmental peculiarities of modern Ukraine. Such an implementation requires an urgent and extensive public discussion of its key points. It has been proved that at the level of legislation and rule-making it is necessary to take a whole range of measures to update the current legal provisions concerning the environment, as well as to adopt a number of qualitatively new ones that would fully comply with the EU policy. In fact, a new paradigm for the development of the Ukrainian state and society in the coming years should center on the standardization and environmentalization of economic, political and legal institutional foundations of their functioning
Institutional Support for Strategizing in the Economic System of a State
Authors:   National Aerospace University «Kharkiv Aviation Institue» named after M. Ye. Zhukovskiy, Isaieva N. I.
Published: May 2021

The initiation and implementation of the strategizing process in a country should be accompanied by a comprehensively developed, high-quality state mechanism of strategic management. The existence of an institutional mechanism, which provides for the creation of organization structures in the public authorities system, the division of their functions and responsibilities, clearly defined interaction of structures designed to achieve common strategic development goals, is a prerequisite for a successful strategic process in the country. Providing institutional support for strategizing in a complex socio-economic system, which is still developing, requires coordination and balance in the activities of all the strategic management entities, thus becoming relevant in the current conditions of Ukraine’s development. The article aims at studying the structure and functions of the executive authorities in the field of strategic management. Recommendations have been developed to improve the institutional support for the strategic process in the country by implementing the EU institutional organization principles, designed by the ESDN, and the PDCA Cycle in public administration. The author identifies Ukraine’s strategizing participants; develops recommendations for supplementing the public authorities’ functions in the strategizing field; suggests creating an organizational structure which would support strategizing; and creates a consistent institutional support scheme helping to implement strategizing at the national level
Incentive Tariff Regulation of Utilities: Theoretical Basis and Practical Application
Authors:   National University «Yuri Kondratyuk Poltava Politechnic», Onyschenko V. O. , Berezhna A. Y. ,   National University «Yuri Kondratyuk Poltava Politechnic», Filonych О. М. ,   National University «Yuri Kondratyuk Poltava Politechnic»
Published: May 2021

The article aims at studying the manifestation features of the system of incentive tariff regulation of utilities given the need to attract investment to modernize the utilities infrastructure in cities in the field of electricity and centralized water consumption, indicating its risks and benefits. The following methods were used: decomposition, comparative analysis (when considering the methods of tariff calculation based on the "cost plus" principle and on the "rate of return on invested capital and regulatory asset base"), scientific abstraction, systemic approach, construction of scientific hypotheses (when studying the algorithm for the calculation and dynamics of the incentive tariff for electricity distribution services and centralized water consumption). A change in the electricity cost for end consumers under the transition to an incentive tariff for electricity distribution has been modelled. The dynamics of tariffs changes in centralized water consumption services is studied based on the concept of the rate of return on invested capital and regulatory asset base (RAB-methodology), and the number of investment resources that under such conditions can be directed to modernize urban water infrastructure is forecasted. The expediency of different approaches to determining the rate of return on capital (single and differentiated rate) given the legal status of assets is proved. The RAB tariff regulation concept is applied to services in the field of centralized water consumption with the identification of risks and benefits for consumers, service providers and potential investors in the modernization of the industry infrastructure. Given the energy intensity of the services, the impact of the full introduction of the electricity market on the tariffs dynamics and on the need for effective social tension preventers has been identified. The research results prove the necessity and validity of applying incentive tariff regulation in the field of electricity and water consumption, provided that the interests of consumers and service providers are balanced; and allow authorized persons to design a number of appropriate measures to ensure that the service provider invests the established amount of finance in the first regulatory period, given the uncertainty of this issue in the regulations
Conceptualization of innovation landscape within the sustainable development of a region
Authors:   Sumy State Pedagogical University named after A. S. Makarenko, Omelyanenko V. A.
Published: May 2021

Ensuring sustainable development at the level of individual territories becomes especially important for Ukraine. At the same time, the management of sustainable development processes should be improved with respect to the key aspects related to innovation. In these circumstances, the concept of innovation landscape helps to focus on creating competitive advantages and, on their basis, on developing strategies for sustainable development. Having analyzed the existing research results, we can conclude that theoretical, methodological and practical aspects of innovation policy development within sustainable development need further specification. Thus, the study in question aims at conceptualizing the innovation landscape in the context of sustainable development. The scientific analysis carried out allows us to suggest a new definition for the innovation landscape, understanding it as an integrative set of indicators, which reflects socio-economic conditions and includes the performance of public authorities, innovative management tools used, the activity of innovative economic entities, the availability and quality of innovation infrastructure, the development of cluster relationships, etc. aimed at solving problems of socio-economic development. Having generalized the research results, including those of the author's research, we can determine that the concept of innovation landscape and an appropriate applied approach based on it open wide opportunities for creating and managing the spatially rooted structures of innovative interactions between science, education, business and communities. It is proved that innovation landscape should be considered both at the regional and territorial level. It is determined that to form an innovative landscape of sustainable development of a region it is necessary to use new innovative practices, opportunities and challenges that arise at the local level in accordance with these trends. It can be done within the innovation audit mechanism recognizing these trends and supporting innovation management.
Implementation of Foreign Experience in Employee Motivation into the Activity of Ukrainian Enterprises
Authors:   Yuriy Fedkovych Chernivtsi National University, Kyfyak V. I. , Todoriko I. M. ,   Yuriy Fedkovych Chernivtsi National University
Published: May 2021

The actual value of the issue in question lies in the new challenges present in the labor market and the transformation of public relations in connection with COVID-19, making it necessary to reconsider the mechanism of employee motivation, i.e. using the latest instruments for the utilization and management of labor resources. We believe that reasonable implementation of effective employee motivation instruments, developed by successful enterprises, will lead to highly productive work of employees at enterprises and increase the efficiency of human resources utilization. The article aims at analyzing the motivational models of the leading countries and to form the principles of implementing their experience in the business practice of Ukrainian enterprises. The research results in identifying popular instruments used abroad, which are most effective in the current situation in Ukraine, namely: motivating employees to innovative activity by evaluating the results obtained; employees involvement in the management, strategic planning and distribution of corporate profits; flexibility and social dimension of salaries and wages; scoring and rating employees’ performance; encouraging competition and teamwork. The principles of introducing an effective employee motivation model based on foreign experience are formed. It is concluded that if Ukrainian enterprises use employees’ motivation instruments that have proved their effectiveness abroad, then, if used systematically and holistically, they will bring economic growth to the enterprises and social development to the country, in general.
Bankruptcy Prevention Strategies in the Context of Risk Management
Authors:   National University of Life and Environmental Sciences of Ukraine, Sova O. Y. , Morozov Y. Y. ,   Kyiv University of Market Relations
Published: May 2021

The article aims at summarizing the existing risk management strategies helping to prevent bankruptcy and liquidation of enterprises, taking into account modern environmental challenges and the impact of the COVID-19 pandemic on the performance of business units. As a result of the study, tactical and strategic methods of risk management were identified. The components of the risk management process are identified in accordance with international standards. The main types of enterprise management strategies in crisis situations are described, highlighting the ERM approach, together with its main differences and advantages for its use at enterprises. Statistical data on the number of business entities in Ukraine and the number of bankruptcy proceedings in 2016-2020 are analyzed. It is emphasized that the goals and main tasks of the state policy of the Ministry of Justice of Ukraine for 2021-2023 include the introduction of transparent bankruptcy procedures, which will quickly restore the debtor's solvency or fairly distribute the bankrupt's assets among creditors. Changes to the procedure for initiating bankruptcy proceedings of a legal entity, defined by the Bankruptcy Procedure Code of Ukraine, are suggested. Threats to businesses engaged in foreign economic transactions are presented based on an overall assessment of the global impact of risk scenarios on business (GBI). It is proven that the rationalization of strategic planning instruments and the implementation of a systemic approach to the crisis management of an entity, in general, and its financial and economic activities, in particular, influence greatly the effectiveness of restoring the financial solvency of that entity in a crisis situation. Determining the effectiveness of state support programs for carrying out business activity in the pandemic, and assessing the medium-term effectiveness of measures taken by government agencies make up the directions for further research.
Consolidation of the Banking Sector: Determinants and Consequences
Authors:   Kyiv National Economic University named after V. Hetman, Krasnova I. V. , Nikitin A. V. ,   Kyiv National Economic University named after V. Hetman, Shevaldina V. H. ,   Kyiv National Economic University named after V. Hetman
Published: May 2021

The article aims at substantiating the theoretical and methodological foundations of research in bank consolidation and assessing its consequences in order to identify the relationship between consolidation and the banking market structure. The main preconditions and priorities of consolidation are systematized and generalized, taking into account the theory of financial integration and synergetic interaction. This approach will contribute to deeper understanding of the motives and trends of consolidation in modern conditions. It is noted that the transnationalization and concentration of capital form the basis for market consolidation, which goes through a certain life cycle, the latter being specified by the authors. It is concluded that the universal, integrated nature of financial business and the formation of financial business ecosystems is becoming more widespread. The main changes in financial mediation are identified. Statistics of banking concentration in Ukraine is given. The dynamics of concentration ratio for the period from January 1, 2000 to August 1, 2020 was analyzed, revealing that the market is moderately concentrated. It is stipulated that the higher the combined share of the five major banks in the banking sector, the less likely a domestic merger and acquisition is. Accordingly, the domestic banking market, compared to European ones, has significant potential. It is concluded that the high values of profitability indicators speak of excess demand over supply in the banking market; thus, competitive intensity under such conditions is minimal, even with the withdrawal of most banks from the market. Thus, competition is only declared. In the future, we should expect increased non-interest rate competition. It is noted that competitive intensity depends on the concentration, dynamics and profitability of the banking market. Competition assessment, carried out using non-structural measures, H-statistics, Boone indicators and Lerner index, showed that, since the an individual bank does not build up its range of activity through consolidation, or by redistributing its market share among participants, but due to the growing demand for banking services, and remote services in particular, competition is actually reduced. The research confirmed that the processes of concentration, consolidation and competition are interconnected, and this connection should be identified to better understand the formation of the banks’ functional strategy and their choice of the business model.
The Information Infrastructure of Search Engines: A Content Analysis of Covid-19 Immunization Information Online
Authors: Belliveau Renée
Published: May 2021

After the World Health Organization declared the spread of the novel coronavirus (COVID-19) a global pandemic in March 2020, they cautioned of another outbreak: an “infodemic.” This study examines how online search engines are influencing the global spread of immunization information about COVID-19. It aims to address the various ways in which search technology is shaping users’ perceptions of the pandemic and to measure the credibility of the sources they provide.
Enter the Matrix: What the new brain-computer interfaces teach us about agency, privacy, and human subjectivity
Authors: Dueck Benjamin
Published: May 2021

Within the last decade, the global brain-computer interface (BCI) industry has experienced significant economic growth and captured the public’s imagination through enthusiastic coverage in the popular media. Responding dialectically to this growing public discourse, this paper overviews the social, ethical, and philosophical aspects of BCIs that pose the greatest concern for information policymakers. By reading the industry’s techno-economic trends against contemporary critical philosophy, I argue that these technologies enable new “posthuman” forms of surveillance and control that challenge democratic notions of freedom, privacy, and equality.
An Ethic of Care: Interrogating the Need for Care in the Archives
Authors: Miller Percephone
Published: May 2021

Using a mixture of personal experience and frameworks presented by Caswell and Cifor (2016), this essay explores the tangible ways that archival spaces can and should account for the affective responses of their user groups. Drawing on a case study at Algoma University, care work is demonstrated to be an imperative element for just, engaged, and enriched archival service.
Commemoration as reconciliation: Indigenous history and Canada’s heritage designation system
Authors: Pentland CJ
Published: May 2021

In September 2020, the Canadian federal government designated the residential school system as an event of national historic significance and two former residential school buildings as national historic sites. They joined over 2,150 other places, people, and events that have been certified as part of Canada’s official historical narrative – the majority of which celebrate the nation’s imperialist history and silence Indigenous peoples. However, public representations of historic injustices that honour victims have the power to disrupt laudatory versions of the past and foster reconciliation. This paper will examine the history of Canada’s commemorative efforts and its effect on the nation’s collective memory, before exploring how the heritage designation framework can be decolonized in a way that respects the needs and desires of Indigenous peoples.
Personal Information Protection and Digital Technologies in Ontario Schools
Authors: Farrow Amy
Published: May 2021

Ontario K-12 classrooms increasingly use digital applications and platforms. Consequently, private companies collect more personal information, posing a potential threat to student privacy. Current privacy legislation does not specifically address education technology or its use by children, and current policies and practices do not sufficiently support schools and teachers. Because educational practices and legislative compliance are variable, Ontario schools cannot provide students with consistent personal information protection. 

This brief considers a privacy pledge, provincial legislation, and a Ministry of Education commission as policy alternatives. In the interest of supporting student privacy, adapting to changing conditions, and providing both clear standards and flexibility to stakeholders, this brief recommends that a Ministry of Education commission be created to review and approve digital applications and platforms for classroom use.
Mary Leslie: The Journey of A Lost Canadian Author
Authors: Krucker Madeleine
Published: May 2021

This paper examines the life of a Canadian writer of the late nineteenth and early twentieth centuries named Mary Leslie who experienced moderate success as an author. Despite her numerous efforts to write and publish stories, she failed to gain a public readership and was almost entirely forgotten by history. Her single novel is impossible to find and is ignored by both literary and Canadian historians alike in spite of its unique depiction of mid-nineteenth century rural Ontario and its unconventional perspective of class, gender, and romance of her time. This paper follows Leslie’s transatlantic journey within the literary world to provide a perspective on the experiences of Canadian women, their barriers, and areas of opportunity that could have afforded them success. By drawing heavily on the analysis of archival material, including correspondence, financial records, published and unpublished manuscripts, a vibrant woman with a passion for storytelling is revealed.
“A Human Face”? The Social Movement for Migrant Farm Workers’ Rights in Canada during COVID-19
Authors: Wenban Giselle
Published: May 2021

With this paper, I explore the recent struggles of migrant farmworkers in Canada in the context of the novel coronavirus (COVID-19) pandemic. I investigate how media depictions and social-network- platform-based migrant-rights activism are framed and deployed to push for increased health and workplace protections and for full immigration status for migrant farmworkers. My analysis is grounded Sareeta Amrute's (2019) work in her article "Of Techno-ethics and Techno-affects”, in which she considers digital labour through the lens of affect and feminist theories of attunement to propose new ways of approaching ethical dilemmas between people and the technologies they create and use. I argue that this digital social justice movement — surrounding the struggles of migrant farmworkers during COVID-19 — reflects the complexities of migrant bodies and the tension between visibility, invisibility, and obfuscation in service of status and safety. I question whether those two things (being ‘seen’ and being safe) are at odds in this context.
The Archival Wave: Communities Represented By & Constructed In K-Pop Fan Archives
Authors: Asokan Abbi
Published: May 2021

The Internet has democratized archiving in new ways.  A dominant form of the new digital archive is the fan archive, which seeks to preserve and make accessible highly specific sections of popular culture.  The will to archive is driven by affect and fans help to foster a sense of devotion and representation through their archival work.  By analysing the role Korean pop (K-pop) fan archives have played in fostering the Korean wave, this paper will explore how archives not only represent communities but also construct their own.  In doing so, it suggests emerging archival practices arise most prominently in the affective space, unbound by traditionalism.
Mutation analysis of candidate genes SCN1B, KCND3 and ANK2 in patients with clinical diagnosis of Long QT syndrome
Authors: Raudenská M , Bittnerová A , Novotný T , Floriánová A , Chroust K , Gaillyová R , Semrád B , Kadlecová J , Šišáková M , Toman O , Špinar J
Published: May 2021

The long QT syndrome (LQTS) is a monogenic disorder
characterized by prolongation of the QT interval on
electrocardiogram and syncope or sudden death caused by
polymorphic ventricular tachycardia (torsades de pointes). In
general, mutations in cardiac ion channel genes (KCNQ1, KCNH2,
SCN5A, KCNE1, KCNE2) have been identified as a cause for
LQTS. About 50-60 % of LQTS patients have an identifiable LQTS
causing mutation in one of mentioned genes. In a group of 12
LQTS patients with no identified mutations in these genes we
have tested a hypothesis that other candidate genes could be
involved in LQTS pathophysiology. SCN1B and KCND3 genes
encode ion channel proteins, ANK2 gene encodes cytoskeletal
protein interacting with ion channels. To screen coding regions of
genes SCN1B, KCND3, and 10 exons of ANK2 following methods
were used: PCR, SSCP, and DNA sequencing. Five polymorphisms
were found in screened candidate genes, 2 polymorphisms in
KCND3 and 3 in SCN1B. None of found polymorphisms has
coding effect nor is located close to splice sites or has any
similarity to known splicing enhancer motifs. Polymorphism
G246T in SCN1B is a novel one. No mutation directly causing
LQTS was found. Molecular mechanism of LQTS genesis in these
patients remains unclear.
Effect of pedaling rates and myosin heavy chain composition in the vastus lateralis muscle on the power generating capability during incremental cycling in humans
Authors: Majerczak J , Szkutnik Z , Duda K , Komorowska M , Kolodziejski L , Karasinski J , Zoladz JA
Published: May 2021

In this study, we have determined power output reached at maximal oxygen uptake during incremental cycling exercise (P(I, max)) performed at low and at high pedaling rates in nineteen untrained men with various myosin heavy chain composition (MyHC) in the vastus lateralis muscle. On separate days, subjects performed two incremental exercise tests until exhaustion at 60 rev min(-1) and at 120 rev min(-1). In the studied group of subjects P(I, max) reached during cycling at 60 rev min(-1) was significantly higher (p=0.0001) than that at 120 rev min(-1) (287+/-29 vs. 215+/-42 W, respectively for 60 and 120 rev min(-1)). For further comparisons, two groups of subjects (n=6, each) were selected according to MyHC composition in the vastus lateralis muscle: group H with higher MyHC II content (56.8+/-2.79 %) and group L with lower MyHC II content in this muscle (28.6+/-5.8 %). P(I, max) reached during cycling performed at 60 rev min(-1) in group H was significantly lower than in group L (p=0.03). However, during cycling at 120 rev min(-1), there was no significant difference in P(I, max) reached by both groups of subjects (p=0.38). Moreover, oxygen uptake (VO(2)), blood hydrogen ion [H(+)], plasma lactate [La(-)] and ammonia [NH(3)] concentrations determined at the four highest power outputs completed during the incremental cycling performed at 60 as well as 120 rev min(-1), in the group H were significantly higher than in group L. We have concluded that during an incremental exercise performed at low pedaling rates the subjects with lower content of MyHC II in the vastus lateralis muscle possess greater power generating capabilities than the subjects with higher content of MyHC II. Surprisingly, at high pedaling rate, power generating capabilities in the subjects with higher MyHC II content in the vastus lateralis muscle did not differ from those found in the subjects with lower content of MyHC II in this muscle, despite higher blood [H(+)], [La(-)] and [NH(3)] concentrations. This indicates that at high pedaling rates the subjects with higher percentage of MyHC II in the vastus lateralis muscle perform relatively better than the subjects with lower percentage of MyHC II in this muscle.
Modulation of antioxidant enzyme activities by sexual steroid hormones
Authors: Pajović SB , Saičić ZS
Published: May 2021

Taking into consideration the biological importance of interaction
between antioxidant defense (AD) enzymes and sexual steroid
hormones it was deemed important to compare our recent
achievements in the field with the state of current knowledge.
The main goal of the present review was to investigate the
changes of AD enzyme activities: superoxide dismutases,
catalase, glutathione peroxidase, glutathione-S-transferase and
glutathione reductase in the brain of female and male rats
depending on progesterone and estradiol. These ovarian steroids
produce their effects by acting on numerous target tissues and
organs, such as the reproductive organs, bone tissue and
cartilage, peripheral blood vessels and the central nervous
system (CNS). We have chosen it as a new parameter that might
represent an important indicator of the changes within the CNS,
bearing in mind the biological importance of the enzymes of the
AD system. Our experimental results indicate that the AD enzyme
activities in the brain tissue of female and male rats show a
certain dependence on the concentration of progesterone and
estradiol. The present review suggests that the modulation of the
oxidative and antioxidative capacity by sexual steroid hormones is
mediated through antioxidant metabolizing enzymes.
Korunga (Onobrychis viciifolia) Hipokotil Eksplantlarının In Vitro Rejenerasyon Yeteneğinin Belirlenmesi
Authors: UYSAL Hüseyin , TOPBAŞ Tuğba
Published: May 2021

Bu araştırma Korunga (Onobrychis viciifolia Scop.) Özerbey-03 çeşidine ait hipokotil eksplantlarının BAP (6-Benzil Amino Pürin- sitokinin hormonu) ve İAA (İndol-3-Asetik Asit- oksin hormonu) içeren besi ortamlarındaki gelişimini araştırmak amacıyla gerçekleştirilmiştir. Araştırmada temel besi ortamı olarak MS (Murashige and Skkog) besi ortamı kullanılmış olup bu ortama 0.5 mg.l-1 BAP ve IAA ayrı ayrı ilave edilmiş, yine kullanılan temel besi ortamına 0.5 mg.l-1 BAP + 0.5 mg.l-1 IAA, 0.5 mg.l-1 BAP + 0.1 mg.l-1 IAA ve 0.1 mg.l-1 BAP + 0.5 mg.l-1 IAA oranlarında sitokinin ve oksin hormonları birlikte ilave edilmiştir. Araştırma sonucunda direk rejenerasyon bakımından hiçbir hormon kullanılmayan yalın ortamının en iyi sonucu (%84) verdiği, kallus oluşumu bakımından ise 0.5 mg.l-1 BAP + 0.1 mg.l-1 IAA içeren ortamın en iyi sonucu (%84) verdiği, besi ortamları toplam rejenerasyon bakımından değerlendirildiğinde ise en iyi sonucu (%100) 0.5 mg.l-1 BAP + 0.1 mg.l-1 IAA ve 0.1 mg.l-1 BAP + 0.5 mg.l-1 IAA içeren besi ortamlarının verdiği belirlenmiştir. Ayrıca kalluslardan sürgün rejenerasyonu bakımından en iyi sonuç (0.83 adet/kallus) 0.5 mg.l-1 BAP içeren ortamdan elde edilmiştir. Bu araştırmanın genel sonucu olarak korunga bitkisinde direk rejenrasyon açısından hormon içermeyen besi ortamlarının, kallus oluşumu açısından ise yüksek konsantrasyonda BAP içeren ve BAP + İAA içeren besi ortamlarının tercih edilmesi başarı oranını arttıracağı söylenebilir.
El proceso de investigación de los estudiantes de la Feria Nacional de Ciencias e Ingeniería de Coahuila
Authors: Muñoz-Lopez Temístocles , Martínez-Sosa Vanessa , Ramos-Jaubert Rocío Isabel , Espericueta-Medina Marta Nieves
Published: May 2021

An investigation was developed with the aim of elucidating the research processes that students follow at different educational levels to develop engineering projects within the Feria Nacional de Ciencias e Ingenierías de Coahuila, with the database used by the Consejo Estatal de Ciencia y Tecnología de Coahuila (COECyT), which consists of 135 projects from which 311 cases were obtained, evaluated by 62 expert researchers designated by the COECyT. Given that the evaluation formats were in Likert-type scales, they were transformed to a standardized centesimal scale and analyzed with statistics of central tendency, dispersion, correlation and discriminant analysis. The conclusion indicates that the development of student projects has original processes that are not subject to a strict methodology, rather, students develop their projects with the help of teachers proposing and developing solutions step by step, in each stage of the investigation, except in the formal requirements of the contest. We can also affirm that the projects have an average methodological identity of 50% in each educational level, according to the discriminant analysis.
Propuesta de atención a alumnos con niveles de depresión en el nivel superior, en el estado de Yucatán
Authors: Perez-Garmendia Gloria , Perez-Perez Iris Cristel , Lopez-Valdivieso Leticia , Balderrabano-Briones Jazmín
Published: May 2021

Objectives: Propose care strategies for students with levels of depression disorders in higher level students through the measurement of depression symptoms in higher level students and with the participation of experts in the psychosocial area, propose support measures of the cognitive model. Methodology: The research is of an exploratory and descriptive type and a non-experimental cross-sectional design (Hernández, et al, 2006), beginning with a documentary research, subsequently measuring the level of depression through instruments that detect the presence of depression in students to generate the proposal of attention and strategies according to the strongest causes to attend to students with levels of depression disorders. Contribution: In the January-June 2020 semester, the total number of registered students was 903 students. Of the total number of enrolled students, 473 students (53%) responded to the depression measurement instrument, it is important to highlight the committed participation of leaders and experts in the analysis of information for the generation of a comprehensive proposal for the care of higher level students, in the State of Yucatan
Intervenciones educativas para la inclusión en el aula de estudiantes con aptitudes sobresalientes
Authors: Gutiérrez-Ladino Leidy , López-Aymes Gabriela , Moreno-Aguirre Alma , Ortiz-Rodríguez María Araceli
Published: May 2021

The educational attention of students with outstanding abilities, in the regular school, has become a great challenge for the Mexican educational system, therefore, the objective of this article is to review in different documentary sources, investigations carried out in Mexico during the period 2010- 2020 where the intervention programs or strategies aimed at this population are highlighted. To this end, the design of this research is descriptive with a search of scientific literature that has included the period of time 2010-2020 in the Researchgate, Scielo, Scopus, Dialnet and Redalyc databases. In addition, the official information of the Secretariat of Public Education of Mexico (SEP) and a bibliographic review in national libraries have been considered. Once the previous objective has been achieved, it is expected that the teacher's knowledge of the educational intervention strategies and the intervention programs presented here will favor the design and implementation of curricular adjustments for the educational inclusion of students with high abilities in regular schools.
Construcción del concepto de Currículum en los contextos educativos
Authors: Hernández-Cueto Jaquelina Lizet , Salinas-Aguirre María Del Consuelo , Yañez-Flores Sara Margarita , Arriaga-Reyes Rosa Argelia
Published: May 2021

This article elucidates the concept of curriculum, in an entitative way to educational processes. It consists of a documentary investigation that tries to account for the construction of the curriculum both chronologically in principle and from the educational perspective in a second instance. A panoramic tour is made of the main international authors and a small emphasis on national authors, since there is a great development in this disciplinary field by Mexican researchers. The importance of this work lies mainly in the former confining the term curriculum only to the curriculum or curriculum mesh, however it has countless elements that give directionality to the educational process in terms of actors, methodology, infrastructure, programmatic contents, etc.
Deterioro de la salud por causa de las vibraciones mecánicas en los centros de trabajo de la zona de Tecamachalco
Authors: Pérez-Villegas Manuel , Téllez-Hernández / Rubén , Sánchez-Bañuelos José Sebastián , Tenorio-Cruz Fermín
Published: May 2021

The objective of this research is to gather sufficient elements to implement a vibration monitoring and control program in various companies in the Tecamachalco region, in accordance with the permissible exposure limits suggested by ISO 2631-1 and in compliance with the Official Mexican Norm NOM-024-STPS-2001. It is about ensuring the wellness of workers, reducing the occupational risk and potential accidents that may occur as consequence. An investigation was done to determine the operating conditions of the companies, then an analysis was done to determine the existing vibration levels and based on this, make the most appropriate proposal to reduce the risks of deterioration of the health of workers by cause of equipment vibrations. The contribution of the research consists of making employers aware of the risks that workers have when being in contact with mechanical vibrations for long periods of time, with their repercussions in the medium and long term.
Plan de Seguridad y Salud a través de un manual y capacitación para atender la normatividad de la STPS y disminuir los riesgos de trabajo en el primer semestre de 2020, en una empresa maquiladora de calzado de la ciudad de León, Gto.
Authors: Ortiz-Aguirre Alejandra Guadalupe , Rivera-Cisneros Miguel Ángel , Ruiz Esparza-Ochoa Sandra , Sánchez-Soto Claudia
Published: May 2021

This article presents the results of an investigation that was applied to a footwear assembly company in the city of León, Guanajuato, in which an occupational health and safety plan was designed through a manual and training for the staff to comply with the Official Mexican Standards (NOM) of the Ministry of Labor and Social Security (STPS) and reduce work risks. Occupational Risk Prevention is the discipline that seeks to promote the safety and health of workers by identifying, evaluating and controlling the dangers and risks associated with production processes, as well as promoting the development of activities and measures to prevent occupational risks , thus strengthening the strategic objectives for the development of human capital within the organization.
Factores asociados a hallazgos anormales en radiografías digitales de tórax en trabajadores asintomáticos en Lima, Perú
Authors: Murguía-Valdivia Ludy , Verona-Cárdenas María de Lourdes , Gomero-Cuadra Raúl , Véliz-Rosas José Carlos , Maguiña Jorge L.
Published: May 2021

Introducción: La radiografía posteroanterior (PA) de tórax es utilizada rutinariamente como examen complementario en la evaluación de trabajadores. Sin embargo, existe la controversia sobre su indicación y utilidad en todos los trabajadores. El presente estudio tuvo como objetivo describir los factores asociados a hallazgos anormales en radiografías digitales de tórax en trabajadores sin síntomas respiratorios. Materiales y métodos: Realizamos un estudio observacional transversal analítico, utilizando registros de placas radiografías digitales de tórax PA de 24069 trabajadores asintomáticos respiratorios, evaluados en un establecimiento de salud acreditado para la realización de exámenes médicos ocupacionales en el Perú, entre los años 2016 - 2019. Resultados: De los 24069 trabajadores asintomáticos, 1166 (4,84% IC 95% [4,58 – 5,12]) presentaron radiografía anormal. Los principales hallazgos se encontraron en el parénquima pulmonar y de estas, las imágenes secuelares de tuberculosis fueron las más frecuentes. Se observó que los trabajadores mayores de 50 años (RP(a) = 6,34), los que presentaron bajo peso (RP(a) = 2.71) y los que tuvieron antecedentes patológicos pulmonares (RP(a) = 6,19) presentaron mayor probabilidad de presentar anormalidades en la radiografía pulmonar. Conclusiones: Debido a la baja frecuencia de radiografías digitales anormales de tórax, creemos que no resulta de utilidad como detección precoz de patología respiratoria en la población estudiada y que debería considerarse en trabajadores mayores de 50 años, con antecedente de enfermedad respiratoria y/o con bajo peso. Es importante realizar mayor cantidad de estudios que confirmen nuestros resultados.
EFEKTIVITAS PELAKSANAAN PROGRAM PELATIHAN PENGEMBANGAN DESAIN KEMASAN PRODUK BATIK SEMANGGI SURABAYA
Authors: Hardjati Susi , Safeyah Muchlisiniyati , Wahyudi Kalvin Edo
Published: May 2021

Semanggi batik is a typical batik of Surabaya City which has problems in increasing competitiveness, especially in the aspect of packaging quality. Therefore, a Semanggi batik product packaging design training program was implemented. The purpose of this training is to increase the understanding and skills of the semanggi batik craftsmens in developing product packaging designs. This article aims to measure and describe the effectiveness of the implementation of the packaging design development program for semanggi batik Surabaya products. The research was conducted with a quantitative approach with data collection techniques using a questionnaire. The data analysis technique used descriptive analysis. The results showed that the effectiveness of the implementation of the training program for the packaging design development of semanggi batik Surabaya products can be categorized as very high. This is because all aspects to measure the effectiveness of program implementation, such as compliance with implementation procedures, the degree of delivery of benefits to targets, the degree of change felt by target groups and differences between program outcomes and objectives have been optimally fulfilled.