bluuebunny/crossref_metadata_2025 huggingface dataset:
TOURISM AS A WAY TO EXPAND THE HUMAN LIFE SPACE
Authors: Martseniuk L. V. , Charkina T. Yu.
Published: July 2017

Purpose of the work is to substantiate the development of railway tourism in the context of human needs in accordance with the theory of individual life space. Methodology. Theoretical and methodological basis of the study is the provisions of the economic theory, management theory, corporate governance. The rational activity of travel agencies is based on the principles of economic equilibrium; Ukrainian population demand for railway tourism was determined with the help of market research and anonymous survey; to explore the real balance between the demand for tourist rail transport and the potential of the required volume of services the paper suggests the balance method. Since any travel company is an open system and is completely dependent on environmental factors, we proposed a method for estimating the factors of internal and external environment. Originality. The element of originality is compilation of existing concepts to the definition of the individual as a subject of life property, for the understanding of human relationships and its external environment. The paper developed the issue of the ability to influence the value of human life space with the help of tourist services. Conclusions. Market research conducted by the author has shown that in Ukraine there is a certain demand for tourist transport by rail, because it is more reliable, safer and more comfortable than the road transport. It is proved that the development of a new innovative project is very timely, as it will allow: to develop tourist infrastructure of Ukraine and bring it to the domestic and foreign tourists; replenish the state and local budgets by tourists; create new jobs for the population and improve their living level; partially reduce the loss-making passenger sector by increasing the volume of rail transport; expand life space for the people of Ukraine that will allow raising the intellectual level of the individual.
GENDER CONFLICTS OF STUDENTS
Authors: Moskalyk H. F. , Bulach M. O.
Published: July 2017

Actuality of work. Student age has the most favourable conditions for psychological, biological and social development; however, there are reasons why such natural advantages over other social groups can be completely or partially levelled. One of them is the presence of conflicts in the life of a student, a special group, among which there are women. The causes of the emergence of gender conflicts in individual social groups and the strategies for their solution have not been sufficiently explored and require further study and, therefore, are relevant. Purpose of the article is to investigate the causes of gender conflicts among students as a separate social group and to develop measures to address them and prevent them. Methodology. The research conducted in the work is based on the analysis and generalization of the causes of the emergence of gender conflicts among students, the identification of the main sources of information that form the consciousness of children and adolescents, and also influence their attitude to gender equality. Originality. The nature of gender conflicts has been quite effectively studied for a long time. However, the scope of research is limited to the most numerous social groups, such as the family, labour collective, political and public organizations, etc. Being a dynamic and socio-demographic formation, the students perform an important function in society – it takes a direct part in the transformation of all spheres of the life activity of the society. Based on the study of the objective conditions of the social environment with certain models of socialization that form the consciousness of students from early childhood, a three-component system of influence was first proposed, which is aimed at overcoming gender inequality and preventing gender conflicts among students. At the same time, the interaction of the components of the system will allow to minimize the gender inequality index in our country. Conclusions. Based on the conducted research, the authors came to the conclusion that any part of their life activity can become the sphere of occurrence of gender conflicts of students: from the choice of the direction of vocational training and the educational process to the arrangement of living conditions. The main cause of gender conflicts among students is gender inequality, which is formed in their minds. While in our society there are gender stereotypes that influence the formation of the consciousness of people from childhood and are promoted by all available sources of information, such a phenomenon as gender inequality cannot be considered overcome.
THE CONCEPT OF SELF-DETERMINATION IN THE PHILOSOPHY OF THE ENLIGHTENMENT
Authors: Khmil V. V. , Korkh O. M.
Published: July 2017

Purpose. The purpose of the article is to define main directions and ways to legitimize philosophical ideas of self-determination as a fundamental global and valuable intention of Western culture in the context of its enlightenment paradigm. Methodology. The research is based on historical and logical methods, which allowed to theoretically reconstruct the cultural and historical context, as well as philosophical and theoretical principles of understanding and recognition of self-determination as a phenomenon of Western culture of the Enlightenment age. The authors have used their own theoretical model similar to the one of “ideal type” by. M.Weber based on the methods of generalization, abstraction and idealization, which allowed to present the phenomenon of individualism in the most general form as a system of value orientations of an individual, whose nature is seeking self-determination and originality. Originality. The historical and philosophical analysis has shoяк.wn how the philosophy of the Enlightenment age created moral principles of European culture advancement, especially through rationalization and the idea of political, economic and moral independence of a personality, recognition of rights for own initiative and sovereignty, individual identity as a public good. Thus, the idea of self-determination in this philosophy is related not only to the recognition of human rights, but also to the search of possible ways for a person to embrace current legislative system, harmony conditions and public interests. Conclusions. The philosophy of the Enlightenment has made a significant step toward further development of self-determination concept and its rationalization – separation of freedom and tyranny, new perception of necessary conditions for free self-determination of an individual as the ability to manage own passions and build own life on some rational principles, to refuse from excessive egoism, combining personal interests with the interests of others and public in generally these ideas were performed in the system of philosophical and legal liberalism, which emerged as a result of the synthesis of individualism and rationality concepts, and became an ideological basis for the modernization of Western civilization.
A model for incorporating robustness into flight planning
Authors: Khaksar Hassan , Sheikholeslami Abdolreza
Published: July 2017

In scheduled air transport, airline profitability is strongly impacted by an airline's ability to construct flight schedules. Airlines face operational challenges such as schedule disruptions and limited resources affecting the efficiency of the operations. These delays may have cascading impacts on the subsequent flights, as they affect the crew's schedule and possibly aircraft schedules as well. Consequently, negative effects of the initial delay propagate through the network until the slack between flights can absorb the delay. This paper makes functional and economic comparisons between robust planning and disruption management in the case of delay. Approaches based on the Dantzig–Wolfe decomposition are used to solve the problem. The proposed technique was implemented on an actual data set of one of the major Iranian airlines with more than 35 aeroplanes that fly between 50 airports. The computational results show the proposed methodology can solve the problem optimally and significantly reduce the delay of flights.
Haploinsufficiency of the Transcription Factor Ets-1 Is Renoprotective in Dahl Salt-Sensitive Rats
Authors: Feng Wenguang , Chen Bo , Xing Dongqi , Li Xingsheng , Fatima Huma , Jaimes Edgar A. , Sanders Paul W.
Published: July 2017

Studies using Dahl salt-sensitive (SS) rats identified specific quantitative trait loci that predispose animals to hypertension-associated albuminuria and kidney injury. We explored the hypothesis that kidney-specific expression of the transcription factor Ets-1, located within one of these loci on chromosome 8, mediates glomerular injury in SS hypertension. During the first week on a high-salt diet, SS rats and SS rats with only one functioning Ets-1 gene (ES rats) demonstrated similar increases in BP. However, serum creatinine concentration, albuminuria, and glomerular expression of ETS-1 and two ETS-1 targets, MCP-1 and MMP2, did not increase as substantially in ES rats as in SS rats. Mean BP subsequently increased further in SS rats and remained higher than that of ES rats for the rest of the study. After 4 weeks of high-salt intake, ES rats still showed a lower mean serum creatinine concentration and less albuminuria, as well as less histologic evidence of glomerular injury and kidney fibrosis, than SS rats did. To investigate the specific contribution of renal Ets-1, we transplanted kidneys from ES or SS rats into salt-resistant SS-Chr 13BN/McwiCrl
(SS-13BN) rats. Within 10 days on a high-salt diet, BP increased similarly in ES and SS allograft recipients, becoming significantly higher than the BP of control isograft recipients. However, mean serum creatinine concentration and albuminuria remained lower in ES allograft recipients than in SS allograft recipients at 2 weeks, and ES allografts showed less glomerular injury and interstitial fibrosis. In conclusion, reduced renal expression of ETS-1 prevented hypertension-associated kidney injury in SS rats.
La enseñanza y el aprendizaje
Authors: Jimbo Marcelo
Published: July 2017

El éxito del aprendizaje depende sobre todo de tres factores: la inteligencia del aprendiz (o sea su capacidad de aprendizaje); el método, según el cual se aprende; y la motivación que incita a estudiar. El tercer factor es el más importante
INIAP Soledad Cañari Variedad de papa para el austro ecuatoriano
Authors: Sinchi José
Published: July 2017

La variedad INIAP-Soledad Cañari, es una papa para consumo en fresco. El tamaño de tubérculo es de mediano (primera locrera) a grande (gruesa), forma oblonga, color de piel blanco crema, color de pulpa amarillo claro y con ojos medianamente profundos y agrupados en la parte apical.
La contaminación Química
Authors: Jimbo Marcelo
Published: July 2017

La contaminación química de la leche se puede verificar mediante cuatro vías:

a. Detergentes y desinfectantes usados en las operaciones de lavado.

b. Antielmínticos.

c. Insecticidas y antricriptogámicos usados en la agricultura.

d. Elementos radioactivos, sustancias diversas, metales.
Búsqueda de la sostenibilidad del agua
Authors: Vimos Astudillo Bolivar
Published: July 2017

El 70% de la superficie terrestre se encuentra cubierta de agua, con un volumen de 1 460 x 106 km 3 , de los cuales el 2,07% corresponde agua dulce. En este valor se encuentra el 2,05% que corresponden a los casquetes polares y glaciares.
Workplace Wellness Champions: Lessons Learned and Implications for Future Programming
Authors: Amaya Megan , Melnyk Bernadette Mazurek , Buffington Brenda , Battista Lauren
Published: July 2017

Background: Wellness champion teams can be a critical "grass roots" strategy in building a culture of worksite wellness; however, little is known about key elements of programs to prepare individuals for this role and their level of impact.Aim: To describe the components of a worksite wellness champion program at a large public land grant university in the Midwest and the characteristics of individuals who participate in this role.Methods: The Wellness Innovator program components, including processes of recruitment and retention, as well as demographic data of the Innovators are described.Results: 464 Innovators currently serve in the role. Support from supervisors/managers is key for sustained Innovator engagement.Conclusions: The Wellness Innovator program is an important strategy in encouraging faculty and staff to participate in wellness activities and services. More research is needed to determine the impact of wellness champion teams on health and wellness outcomes.
Editorial
Authors: Kazer Meredith Wallace
Published: July 2017

No abstract available
Should the pre-doctoral oral and maxillofacial surgery curriculum include an operating room rotation? A survey of third year dental students
Authors: M. DeLuke Dean , Tack Samuel , Antonos Luke , Carrico Caroline , M. Laskin Daniel
Published: July 2017

Introduction and Objectives: An operating room rotation for predoctoral dental students can have many potential benefits, both for the students and for the specialty of oral and maxillofacial surgery (OMS). The purpose of this study was to determine the relevance and value of such a rotation for a group of 3rd year dental students. Subjects and Methods: In this prospective study, third year dental students completed a voluntary, anonymous questionnaire prior to and after a 2 day operating room rotation. Data collection included the student’s perception of the scope of practice for OMS, their level of satisfaction with the rotation and its perceived value, and whether the rotation-specific educational objectives were met. Results: Fifty-seven of 98 eligible students answered both questionnaires. More than 80% of students were already familiar with the scope of OMS prior to the rotation. Following the rotation, greater than 90% indicated that they had a better understanding of procedures, were better equipped to refer patients for advanced procedures, and that the rotation was valuable to their dental school experience. A similar number also reported favorable interactions with the residents and attending staff. The rotation-specific objectives and student expectations were generally met, except that nearly 24% would have preferred more hands-on experience. A majority of students also preferred more time in the operating room (OR). Conclusion: The results of this study indicate that students perceive a rotation through the operating room as valuable, giving them a better understanding of OR protocol and procedures, improving their knowledge of various surgical operations, and making them feel better prepared to refer patients for advanced OMS procedures.
El lugar del bandolero en el conflicto rural. Una aproximación historiográfica desde la obra de Eric Hobsbawm
The place of the bandit in rural conflict. A historiographical approach from the work of Eric Hobsbawm
Authors: Bascuñán Añover Óscar , Urda Lozano Jesús-Carlos
Published: July 2017

RESUMEN Los estudios sobre el bandolerismo han estado fuertemente influidos o condicionados por la alargada sombra de Eric Hobsbawm. Algunas de sus obras más leídas consiguieron elevar a esta figura histórica a la principal expresión del conflicto social en el mundo rural y rodearla de tópicos, mitos e ideales postrománticos. Sin embargo, el paulatino incremento de la producción historiográfica ha supuesto la revisión crítica de algunos de los estereotipos, imágenes y construcciones históricas que recaían en el bandolero, dotando de mayor complejidad el significado de sus comportamientos, sus estrategias delictivas, sus actitudes frente a la autoridad y sus relaciones sociales con las comunidades campesinas. De este modo, el propósito de este artículo reside en presentar una actualización del debate, con especial atención al reflejo que ha tenido en la historiografía española, y proponer una serie de ideas y líneas de investigación por las que ahondar en el conocimiento del conflicto rural y sus actores más relevantes.   PALABRAS CLAVE: bandolerismo, Eric Hobsbawm, conflicto rural, historiografía, España   ABSTRACT Studies of banditry have been strongly influenced or conditioned by the long shadow of Eric Hobsbawm. Some of his works managed to boost the image of the bandit to one of being the main historical expression of social conflict in rural areas and to surround it with stereotypes, myths and post-Romantic ideals. However, the gradual increase in historiographical production in this area has led to a critical review of some of the stereotypes, images and historical constructions visited on the bandit, rendering more complex the meaning of their behavior, criminal strategies, attitudes toward authority and social relationships with rural communities. Thus, the purpose of this article lies in presenting an update of the debate, with a focus on how it has played out in Spanish historiography, and proposing a number of ideas and lines of research that deepen our knowledge of rural conflict and its most important actors.   KEY WORDS: banditry, Eric Hobsbawm, rural conflict, historiography, Spain
Azúcar y mecenazgo en Gran Canaria; Islas y voces del azúcar, I. Documentos para la Historia de Canarias, XI y Léxico azucarero atlántico (siglos XVI-XVII)
Authors: González Zalacaín Roberto J.
Published: July 2017

Reseña de las obras mencionadas.
Reformas y contrarreformas en la Europa católica (siglos XV-XVII)
Authors: Morte Acín Ana
Published: July 2017

Reseña de la obra mencionada.
Analysing Workers Engagement in Public and Private Sector: with special reference to Telecom, Banking and Insurance Industry in India
Authors: Sanjeevni Gangwani Shweta Sharma,
Published: July 2017

Service sector in India is growing at such a fast pace that every day is a new challenge for both the employers and the employees. This forces organisations to provide the best opportunities and best working environment to their employees so that they give their best to the organisation and help in the survival in this dynamic environment. The current research explores workers engagement in public and private service sectors in India. The objective of the research study was also to investigate the engagement practices that are emerging in Indian organisations so as to keep their workforce retained and satisfied. The sample consisted of 480 employees from telecom, banking and insurance public and private sector from the selected cities in India. The study used self framed closed ended questionnaire containing 59 statements related to engagement and measured on five point Likert scale. The tool used for analysis was Two Way ANOVA and was done on SPSS16.In all the industries the level of engagement was found to be better in public sector as compared to private sector but no significant difference in engagement was found when compared within telecom, banking and insurance sector
Study Of The Pollen Grain Development In Lagenaria siceraria ( Mol.) Standl. infected by Cucumber Green Mottle Mosaic Virus (C.G.M.M.V.).
Authors: Pandey Ravindra Kumar
Published: July 2017

The pollen grain development followed the normal pattern as described for the Angiosperms. The pollen grain development occurs from meiocyte to the mature pollen grain. In the microsporogenesis, the microspore mother cells or the meiocytes underwent meiosis giving rise to the tetrads that were enclosed by the calose. Later, the tetrads were released by the dissolution of the calose by calase activity and microspores underwent mitosis. Microgametogenesis was characterized by asymmetrical mitotic division of each microspore giving rise to bi-nucleate pollen grains. Multivalent and asynchronismas laggard chromosome and chromosome bridges at metaphase 1 and later stage of division were observed more in diseased plants. Pollen viability reduces in diseased plants; sterile pollen may be empty or shrunken. The structures similar to the plastids were found in the cytoplasm and close to the nucleus of the generative cell
Diálogos intersemióticos: o cinema e a poesia no filme O Espelho, de Tarkovski
Authors: Azevedo Duarte Guimarães Denise
Published: July 2017

O artigo pretende estabelecer um diálogo entre o filme O Espelho (1974), de Andrei Tarkovski e os conceitos teóricos do cineasta em seu livro Esculpir o Tempo (1985), com ênfase nas relações entre cinema e poesia. Investiga-se também o gênero autobiográfico e o modo como os poemas de Arseni Tarkovski constituem uma espécie de fio condutor da trama do filme, na situação limítrofe entre vida e ficção.
As flores do Maɨ: forma e enquadramento nos cantos Araweté (Amazonia)
Authors: Heurich Guilherme Orlandini
Published: July 2017

Neste artigo, analiso os refrões ou vocalizes dos cantos oñĩñã me’e dos Araweté (Pará, Brasil). A partir da noção de “leva-gente”, associo os refrões desses cantos com outras formas estéticas ameríndias, principalmente com o complexo da tocaia entre os povos falantes de línguas tupi-guarani. O material analisado aqui provêm de 14 meses de trabalho de campo que realizei junto aos Araweté, principalmente de trabalho conjunto de transcrição e tradução realizado com Irarũno Araweté (Heurich, 2015). Passando por adornos corporais, tocaias de caça, tocaias xamânicas, chocalhos e maracás, estabeleço uma linha de comparação que passa de um contexto a outro através de conexões metonímicas. Concluo que os refrões funcionam não somente como enquadramento das linhas/estrofes mas como uma forma de moldura maleável e impermanente onde ritmo e movimento são aspectos fundamentais.
Antropofagia: “a única filosofia original brasileira”?
Authors: Matos Marcos De Almeida
Published: July 2017

Em sua introdução à edição fac-similar da Revista de Antropofagia, Augusto de Campos afirmou que a Antropofagia, expressa nas obras de Oswald de Andrade e outros, é “a única filosofia original brasileira e, sob alguns aspectos, o mais radical dos movimentos artísticos que produzimos”. Para determinar as condições de verdade da sentença de Augusto de Campos seria preciso compreender como a antropofagia ameríndia pôde ser tomada pelos autores da Revista como o índice de uma filosofia e de uma antropologia inauditas, que comporia uma verdadeira Weltanschauung, antecipando a descida definitiva da razão ao corpo operada pelas obras de Marx, Nietzsche ou Freud. No entanto, enquanto conceito filosófico, a Antropofagia sabota justamente os elementos da sentença de Augusto de Campos: “filosofia”, “originalidade” e “brasileira” já não poderão significar exatamente a mesma coisa.
Reading Comprehension Course Through a Genre-Oriented Approach at a School in Colombia
Authors: Rodríguez Sánchez Andrés
Published: July 2017

This paper reports on an action-research study aimed at identifying the problems and needs of a specific group of tenth graders at a school in Colombia in relation to their reading comprehension in English in order to design, partially implement, and evaluate a genre-oriented syllabus. Findings show that the explicit instruction of metacognitive strategies helped students become more efficient readers, as well as the fact that the exposure and analysis of genres developed a better comprehension of different kinds of texts, making these students aware of the structure and patterns of the texts they were reading as they approached them with reading strategies that were appropriate for each genre and stage.
The Relationship Between Cognitive Styles and Young Adult Learners’ Preferences for Written Corrective Feedback
Authors: Moslemi Negar , Dastgoshadeh Adel
Published: July 2017

This study aimed to investigate the relationship between learners’ cognitive styles and their preferences for different types and frequencies of written corrective feedback and for different types of errors to be corrected. Data were collected from 60 English as a foreign language learners at intermediate and upper-intermediate levels. The instruments included the Ehrman and Leaver Learning Styles Questionnaire, and a questionnaire constructed by Amrhein and Nassaji (2010). The results indicated that there is a strong relationship between learners’ cognitive styles and their preferences for a particular type of written corrective feedback and for different types of errors to be corrected; but there is no significant relationship between cognitive styles and learners’ preferences for frequencies of written corrective feedback.
Identity Construction and Reversal Conceptual Transfer Among Iranian EFL Learners
Authors: Gholaminejad Razieh
Published: July 2017

This article draws on a qualitative study which seeks to explore whether Iranian English as a foreign language learners experience any reversal conceptual transfer and whether they construct two identities as a result of learning a foreign language. The findings from the open-ended questionnaires distributed among 65 undergraduates at the University of Isfahan as well as 45 interviews conducted in a private language school reveal that most of the participants feel they have partly experienced reversal conceptual transfer. However, most of them claimed not to have constructed a new foreign language identity in English, while those who did had a more positive attitude towards their English identity.
"Literate Playing”—An Oral Language Empowerment Strategy for Underprivileged Children
Authors: Wajskop Gisela
Published: July 2017

This article describes an ongoing collaborative action research study, and presents initial observations of the outcomes of teachers’ interventions in early childhood education centres in a major Brazilian city. Designed as a professional development initiative, the action research is based on a view of a quality program being one that offers both play-based learning and linguistically enriching experiences for children and opportunities for professional learning of its professionals to support those same programs in a personal, self-confident, and collective manner. It presents initial observations of the outcomes of teachers’ interventions in four non-governmental early childhood education centres, and some implications the results can suggest for the NOW Play Project.
Lottery Strategy: An activity for new undergraduate students to introduce and reinforce introductory statistical concepts
Authors: Khan Salim Neil
Published: July 2017

Most university mathematics courses involve the students studying a statistics module in their first year. However, depending on which modules they took at A-level, they arrive at university with varying degrees of interest and ability in statistics. This article presents a classroom activity that introduces and reinforces introductory probability concepts to help prepare and engage the students for the statistics that they will encounter on their course. In the activity, the students consider and contrast two different strategies for selecting numbers for a lottery, in order to conclude which is best under which circumstances. It comprises a mixture of experimentation using a lottery machine, analysis using probability theory, and simulation using computers.
Using e-assessment to support flipped-style teaching
Authors: Henderson Karen
Published: July 2017

We show how weekly formative e-assessments are used to support flipped-style teaching of a module delivered to all first year Mathematics students at the University of the West of England, Bristol (UWE). The flip lecture approach places students at the centre of the learning process. For the module described here, a highly scaffolded approach was employed. A workbook containing gapped lecture notes was created as well as a handbook containing exercise sheets and extra reading material. Each week students were expected to independently: watch screencasts and fill in the relevant gaps in their workbooks; take a formative e-assessment; try some basic questions from the exercise sheet and optionally do some extra reading and/or work through a Maple file. During the following two hour class, TurningPoint questions and group activities were used to encourage active learning. Student feedback of this new teaching approach has been very positive.
Prótese Parcial Removível Flexível – revisão de literatura
Authors: Do Patrocínio Bruna Maria Gonçalves , Antenor Aline Moreira , Haddad Marcela Filié
Published: July 2017

Objetivo: Comparar as Próteses Parcias Flexíveis (PPFlex) com as convencionais (PPC), apresentando as vantagens, desvantagens, indicações e contraindicações esclarecendo os dentistas para que façam a indicação consciente e considerando as limitações deste tipo de prótese. Materiais e Métodos: Os termos "Próteses Parciais Removívies”, "Próteses Flexíveis", "Resinas Flexíveis", "Edêntulos Parciais" e "Materiais para Próteses Parciais Removíveis" foram consultados nas bases de dados Pubmed, Bireme e Scielo. Assim, 35 arquivos foram selecionados  para compor esta revisão. Resultados: As PPFlex representam uma alternative às PPCs para pacientes com grande exigência estética e alergia à liga de cromo-cobalto ou ao polimetilmetacrilato. As PPFlex são produzidas com um tipo especial de resina flexível e não apresentam grampos metálicos. Este material prove maior conforto e estética quando comparado às próteses convencionais que são feitas de resina acrílica e estrutura metálica. Conclusão: Embora haja uma popularidade progressiva deste material nos últimos anos, o fato de não conter um suporte oclusal e estrutura metálica cria incertezas quanto ao seu desempenho clínico, especialmente em arcadas de extremidade livre, onde a estabilidade depende da combinação de suporte entre dente e tecido mole.Descritores: Prótese Parcial Removível; Prótese Parcial Temporária; Bases de Dentadura.
Synthesis and Antioxidant Evaluation of a New Class of Thienopyrimidine-rhodanine Hybrids
Authors: Nagaraju Kerru , Bhaskaruni Venkata H.S.S. , Kishore Ravada , Maddila Suresh , Singh Parvesh , Jonnalagadda Sreekantha B.
Published: July 2017

Background:

Antioxidants are proficient of stabilizing agents in the target cells and biological
systems. The homeostatic equilibrium between the reactive oxygen species and endogenous
antioxidants is important in maintaining healthy tissues. As some antioxidant agent’s show improved
resistance, it is necessary to design the new heterocyclic molecules to form potent antioxidant
agents with promising pharmacological applications. Moreover, thienopyrimidine derivatives
has been the subject of much research due to their significance in different applications and their
extensive potential pharmacological and medicinal activities like antibacterial, antifungal, anticancer,
anticonvulsant, anti-inflammatory, analgesic, anti-viral, anti-oxidant, anti-diabetic and antimalarial
properties. Although, recently rhodanine was reported as privileged hybrid in drug discovery
and exhibited pharmacological activities such as anti-malarial, antibacterial, antiviral, antidiabetic
agents. Hence, the development of new molecules within the scope of synthetic procedure
of thienopyrimidine scaffold for heterocyclic synthesis would be worthy and well desired.

Methods:

All the target thienopyrimidine-rhodanine derivatives (5a-l) prepared from the Knoevenagel
condensation with different substituted benzaldehydes in the presence of glacial acetic acid
and 3-(thieno[2,3-d]pyrimidin-4-yl)-2-thioxothiazolidin-4-one (4). Although, all the synthesized
compounds tested for their anti-oxidant activity investigated using DPPH radical scavenging, nitric
oxide (NO) and ABTS activity.

Results:

All the thienopyrimidine-rhodanine derivatives (5a-l) were evaluated for their in vitro
anti-oxidant activity. In fact, (Z)-5-(4-methylbenzylidene)-3-(thieno[2,3-d]pyrimidin-4-yl)-2-
thioxothiazolidin-4-one (5c) with IC50 value 17.64 ± 0.06 µg/mL and (Z)-5-(2-nitrobenzylidene)-3-
(thieno[2,3-d]pyrimidin-4-yl)-2-thioxothiazolidin-4-one (5j) with IC50 value 17.54 ± 0.23µg/mL
showed excellent antioxidant activity nearly similar to the standard drug as an ascorbic acid (IC50 =
17.45 ± 0.03µg/mL).

Conclusion:

The objective of the present work was to design, synthesis and screened for their antioxidant
activities of novel thienopyrimidine containing rhodanine derivatives with the hope of discovering
new structure leads as the most potent antioxidant agents. Our aim has been achieved by
the synthesis of thienopyrimidines with diver functionalities by exploiting 2-thioxothiazolidin-4-one
chemistry and tested for antioxidant activity. The compounds 5c and 5j were found most potent
activity compare to the standard ascorbic acid. Furthermore, the electron withdrawing groups at
position-4 in benzene ring enhanced the activity, whereas the compounds 5d, 5f, 5i and 5l showed
good activity all the three radical scavenging methods.
Green Synthesis and Spectroscopic Studies of Ag-rGO Nanocomposites for Highly Selective Mercury (II) Sensing
Authors: Mane-Gavade Shubhangi J. , Sabale Sandip R. , Yu Xiao-Ying , Nikam Gurunath H. , Tamhankar Bhaskar V.
Published: July 2017

Introduction:

Herein we report the green synthesis and characterization of silverreduced graphene oxide nanocomposites (Ag-rGO) using Acacia nilotica gum for the first time.

Experimental:

We demonstrate the Hg2+ ions sensing ability of the Ag-rGO nanocomposites form aqueous medium. The developed colorimetric sensor method is simple, fast and selective for the detection of Hg2+ ions in aqueous media in presence of other associated ions. A significant color change was noticed with naked eye upon Hg2+ addition. The color change was not observed for cations including Sr2+, Ni2+, Cd2+, Pb2+, Mg2+, Ca2+, Fe2+, Ba2+ and Mn2+indicating that only Hg2+ shows a strong interaction with Ag-rGO nanocomposites. Under the most suitable condition, the calibration plot (A0-A) against concentration of Hg2+ was linear in the range of 0.1-1.0 ppm with a correlation coefficient (R2) value 0.9998.

Results & Conclusion

The concentration of Hg2+ was quantitatively determined with the Limit of Detection (LOD) of 0.85 ppm. Also, this method shows excellent selectivity towards Hg2+ over nine other cations tested. Moreover, the method offers a new cost effective, rapid and simple approach for the detection of Hg2+ in water samples.
Biodegradation and Detoxification of Sanitary Landfill Leachate by Stabilization Ponds System
Authors: Costa Rejane H. R. , Martins Cláudia L. , Fernandes Heloísa , Velho Viviane F.
Published: July 2017

The performance of a pilot stabilization ponds system was evaluated for the treatment of sanitary landfill leachate, focusing on effluent detoxification. Three serial ponds (anaerobic—P1, facultative—P2, and maturation—P3) were evaluated during two different operational conditions: natural condition (period 1) and 24 hours of artificial aeration in P2 (period 2). The ponds system exhibited removal efficiencies of 53% for soluble chemical oxygen demand (SCOD), 81% for filtered biochemical oxygen demand (FBOD), and 84% for NH4+‐N during period 1 and 70% for SCOD, 80% for FBOD, and 96% for ‐N during period 2. Most metals (Fe, Cu, Cd, Zn, Cr, Ni, and Pb) and organic compounds in the leachate were significantly reduced in the treatment system, with greater reductions during period 2. Moreover, toxicity tests demonstrated the capacity of the system to reduce the toxicity of the raw leachate (up to 89% toxicity reduction).
Nitrite Interference with Soluble COD Measurements from Aerobically Treated Wastewater
Authors: Ferraz Fernanda M. , Yuan Qiuyan
Published: July 2017

This study aimed to determine the interference of nitrite () with soluble chemical oxygen demand (COD) measurements from the effluent of landfill leachate treated by sequencing batch reactors (SBRs). Synthetic wastewater assimilating young and old landfill leachate was used as influent for SBR1 and SBR2, respectively. A mixture of raw wastewater and landfill leachate was used as influent for SBR3. Due to the high ammonia concentration in the influent, different levels of partial nitrification were observed in all the reactors and was detected in the effluents. Theoretically, when is present in the effluent, 1 mg/L of accounts for 1.1 mg/L of COD (i.e., 1.1 mg COD/mg ) due to the oxidation of to . It was found that the value of 1.1 mg COD/mg was 3 times higher than the values obtained in the experiments with SBR1 and SBR3. In addition, the values obtained in the experiments with SBR2 were much higher than 1.1 mg COD/mg .

These results suggest that the theoretical value of 1.1 mg COD/mg cannot be applied to predict the COD values caused by nitrite in the tested wastewaters. To obtain an accurate measurement of soluble COD in samples that contain nitrite, nitrite should be eliminated before the measurements.
Behavioural Pattern of Mobile Phone Usage while Driving among Educated Young Adults in Klang Valley
Authors: Md. Isa Khairil Anuar , Masuri Mohamad Ghazali , Azmi Alia , Abd. Aziz Nor Azimah
Published: July 2017

Students who drive and using mobile phones become a common sight these days. This causes lack of coordination contributing patterns of mobile phone usage while driving among educated young adults. A cross sectional study was conducted among students in Klang Valley whom participated voluntarily. The study found 66.6% of participants used mobile phone while driving and male driver were found to have used phones more often while driving on urban road. Results from this study provide information for policy makers in designing.
Impactos del cambio climático sobre las áreas óptimas de nueve cultivos en Cundinamarca - Colombia
Authors: Cortés Yolanda , Alarcón Juan
Published: July 2017

Debido a que se esperan cambios en las condiciones de la precipitación y la temperatura por efectos del cambio climático, para el departamento de Cundinamarca los cuales afectarán el desarrollo de los cultivos, surge la necesidad de identificar los cambios en las áreas de producción de los alimentos más importantes para la seguridad alimentaria bajo escenarios de cambio climático, lo cual permitirá implementar medidas de adaptación oportunas para los municipios más afectados. Se interpolaron los datos para cada uno de los cultivos de acuerdo con sus rangos óptimos de temperatura y precipitación, y la modelación de estas variables se determinó el área y espacialización actual de los cultivos, así como las proyecciones para los periodos 2011 – 2040 y 2070 – 2100 bajo los escenarios de cambio climático A2 (escenario pesimista) y B2 (escenario optimista), los cuales se obtienen a partir de escenarios de emisiones, introducidas en un modelo climático para obtener proyecciones climáticas; los resultados demostraron que bajo nuevas condiciones climáticas, los cultivos de arveja y papa pastusa tienden a desaparecer, mientras que en el cultivo de arroz se esperaría un aumento de las áreas óptimas de producción. Para los escenarios A2 2011 - 2040 y B2 2011 - 2040 se presentaría una reducción del 74% del área cultivable para los nueve alimentos evaluados, contrario a los escenarios A2 2070 - 2100 y B2 2070 - 2100 que indican un incremento del área óptima del 5% respecto a la actual.
Formación in vitro de rizomas en caña flecha (Gynerium sagitatum Aubl.) y recuperación de plantas
Authors: Suarez Padron Isidro Elias , Ortiz Lopez Orlis , López Diaz Claudia Marcela
Published: July 2017

La caña flecha Gynerium sagitatum Aubl. (Poaceae) es una especie de gran importancia ambiental, cultural y económica para ciertas comunidades indígenas del Norte de Colombia, empleando su fibra en la fabricación apreciables artesanías. La cosecha de la planta y la no reposición de esta, viene contribuyendo en la disminución de poblaciones naturales de la esta especie. La micropropagación ha emergido como una de las la única posibilidades de producir de forma eficiente material vegetal para el establecimiento de cultivos y restaurar zonas afectadas. Con el fin de mejorar la eficiencia económica del protocolo de micropropagación, estructuras del tipo rizomas fueron inducidas in vitro a partir de explantes consistentes de plantas stablecidas in vitro bajo tres niveles de sacarosa, cuatro de benzilaminopurina – BAP y cuatro de ácido abscísico – ABA en MS con (en mg L-1) myo-inositol (100), tiamine HCL (0,4) y solidificados con Phytagel® (3.000). Los tratamientos (48) fueron distribuidos con un diseño completamente al azar con seis repeticiones por tratamiento. Los cultivos fueron mantenidos durante ocho semanas a 25 °C con 12 h de fotoperíodo (40 μmol fotones m-2 s-1) suministrada con lámparas de luz fría fluorescente. Diferencias estadísticas se observaron con respecto al número de rizomas formados y longitud de los rizomas como efecto de la interacción de los tres factores. La recuperación de las plantas ex vitro ocurrió en mayor número (6,0) cuando los rizomas se desarrollaron en medios suplidos con 263000 µM de sacarosa combinado con 4,44 y 8,88 µM de Benzilaminopurina – BAP. Los resultados evidencian la posibilidad de inducir in vitro rizomes de caña flecha para ser utilizados en conservación y propagación de esta especie.
Aprovechamiento de residuos maderosos para la obtencion de resinas de intercambio iónico
Authors: Nuñez Jaider , Colpas Fredy , Taron Arnulfo
Published: July 2017

Los materiales lignocelulósicos son una materia prima importante para la preparación de productos útiles en la agricultura. Entre estos materiales está el aserrín y las cortezas provenientes de actividades relacionada con la elaboración primaria de la madera. En esta investigación se propone un proceso para el aprovechamiento de residuos agroindustriales útiles en la obtención de resinas de intercambio iónico a partir de residuos maderosos de actividades forestales. Este residuo fue modificado mediante tratamiento químico con CS2 y NaOH, empleando una relación 0,035 residuo / NaOH p/p y 1,125 CS2/residuo p/p. Se realizaron pruebas de pH para estudiar la influencia en el fenómeno de intercambio iónico, igualmente se realizan isotermas de adsorción para evaluar la capacidad de adsorción del residuo sin tratar y en el residuo sulfonado. Los grupos azufre en el residuo maderoso sulfonado fueron identificados por espectroscopia infrarroja con reflactancia difusa (FTIR). Los resultados mostraron que la mejor remoción de plomo se obtuvo utilizando un pH de 5 para ambos materiales con porcentajes de adsorción de 89% y 98% en soluciones de 100 mg/L de Pb2+ y dosis de 50 mg/10 mL de adsorbente, respectivamente. La capacidad máxima de adsorción del residuo maderoso fue de 65 mg g.-1 de Pb2+ para el residuo sin tratar, mientras que para el residuo sulfonado fue de 72 mg g-1 de Pb2+. El pH es un factor limitante para evaluar la capacidad de adsorción de la resina de intercambio iónico. Los residuos maderosos pueden ser utilizados como materia prima para obtener resinas de intercambio iónico.
Педіатрична клініка Одеського національного медичного університету: якість невідкладної медичної допомоги дітям
Authors: Starets E.A. , Kotova N.V.
Published: July 2017

Мета роботи — обговорити питання підвищення якості невідкладної допомоги дітям при найбільш поширених захворюваннях. Матеріали та методи. Якість медичної допомоги включає 6 показників: ефективність, обґрунтованість, економічна доступність, прийнятність/зосередженість на пацієнта, рівність, безпека. Результати. У педіатричній клініці Одеського національного медичного університету (ОНМедУ) створений блок інтенсивного спостереження, основним завданням якого є надання невідкладної допомоги дітям, які потребують моніторингу дихання та серцевої діяльності, проведення кисневої терапії та регідратаційної терапії великого об’єму. У клініці діє система сортування пацієнтів за тяжкістю стану з урахуванням даних обстеження і пульсоксиметрії. Запорукою ефективності медичної допомоги є локальні протоколи, розроблені на принципах доказової медицини; всі ліки, включені в них, входять у Лист необхідних ліків Всесвітньої організації охорони здоров’я. Прийнятність медичної допомоги визначають пацієнторієнтовані технології: спільне перебування матері та дитини; перевага надається оральній регідратації, а не внутрішньовенному введенню рідини; мінімізація болю і відмова від внутрішньом’язових ін’єкцій; зволоження повітря навколо пацієнта та ін. Середня тривалість перебування у блоці інтенсивного спостереження — 2 дні. Культура безпеки пацієнтів є пріоритетом і включає в себе: зміну ставлення співробітників до медичної безпеки; виявлення тригерів і ризиків медичної допомоги; виявлення медичних помилок і промахів; використання безпечних технологій і простих алгоритмів дій; навчання медичного персоналу. Було проведено більше 40 лекцій і практичних занять для медичного персоналу, включаючи тренінги на манекенах Code Blue. Висновки. Заходи, спрямовані на підвищення якості невідкладної медичної допомоги дітям в педіатричній клініці ОНМедУ, включають: 1) організацію блоку інтенсивного спостереження і його оснащення сучасним обладнанням для діагностики та лікування дітей; 2) сортування пацієнтів за тяжкістю стану за об’єктивними критеріями; 3) скорочення термінів госпіталізації; 4) стандартизацію медичної допомоги шляхом розробки локальних протоколів на принципах доказової медицини; 5) підвищення прийнятності медичного обслуговування за рахунок впровадження технологій, орієнтованих на пацієнта; 6) впровадження культури безпеки пацієнта; 7) постійне навчання медичного персоналу.
La investigación como fundamento para el diseño de la Licenciatura en inglés como lengua extranjera de la UNAD
Authors: Cárdenas Vergaño Nélida
Published: July 2017

Este artículo presenta el resultado de un proceso investigativo, que permitió el diseño curricular de un programa en la modalidad a distancia-virtual, desde el proyecto UNAD-PG-03-2009: Diseño curricular de la Licenciatura en Inglés como Lengua Extranjera ‘LILE’, del grupo de investigación Gestión Vital y la Línea Visibilidad y Gestión del Conocimiento, de la Escuela Ciencias de la Educación (ECEDU) de la Universidad Nacional Abierta y a Distancia (UNAD).
Comparación de factores psicosociales de riesgo en adolescentes de Bucaramanga y su área metropolitana en función del género
Authors: Uribe Rodríguez Ana Fernanda , Carreño Arango Diana Lyzeth , Espinosa Jurado Milena , Sastoque Jerez Luz Elizabeth
Published: July 2017

En Colombia, el panorama del VIH/SIDA es preocupante, pues cada año las cifras de nuevos casos se registran en aumento. Santander por su parte, cuenta con muy poca información sobre estadísticas y grupos poblacionales de riesgo, por consiguiente la presente investigación realiza aportes relevantes en torno a los conocimientos, actitudes y percepción de susceptibilidad y autoeficacia en los adolescentes de Bucaramanga y su área metropolitana. Los hallazgos revelan que el desconocimiento es el principal factor de riesgo de los adolescentes frente a la infección por VIH. Por su parte la actitud positiva aparece como predominante y la percepción de susceptibilidad y autoeficacia de los adolescentes entrevistados puntúan altas en estas variables, lo cual podría actuar como factor protector.
Cambio climático y vulnerabilidad: prospectivas para la región nororiental de Colombia - Santanderes
Authors: Pinto Hernández Jorge Enrique , Salazar de Cardona Melva
Published: July 2017

Según las Naciones Unidas, el cambio climático supone efectos adversos, referidos a cambios en el medio ambiente físico o en la biota, con consecuencias nocivas significativas en la composición, la capacidad de recuperación y la productividad de los ecosistemas naturales o sujetos a ordenación, así como en el funcionamiento de los sistemas socioeconómicos, o en la salud y el bienestar humano. Se analizan aquí, cuáles son los tipos de vulnerabilidad que se observan en la población de los Santanderes.