217 research outputs found
Role of Strong versus Weak Networks in Small Business Growth in an Emerging Economy
The study tests whether strong rather than weak ties account for small business growth in Turkey. Data were collected by means of a questionnaire filled out by the owners of small firms operating in four cities. Growth is comprised of two main areas, production expansion and knowledge acquisition. Results show that strong ties are positively related to both types of growth. In contrast, loose ties have no effect on small business growth in either area. This finding is attributed to the influence of the collectivistic nature of the mainstream Turkish culture, where owners of small businesses are likely to rely on in-groups rather than out-groups for advice and for financial support. Implications of relative absence of weak ties for small business growth and innovation in emerging economies are discussed. The findings suggest that culture should be included as a contingency variable in future studies of network strength and growth relationship. The paper also discusses the possible moderating role of affective and cognition-based trust in the relation of strong and weak ties to small business growth
Role of Strong versus Weak Networks in Small Business Growth in an Emerging Economy
Cataloged from PDF version of article.The study tests whether strong rather than weak ties account for small business
growth in Turkey. Data were collected by means of a questionnaire filled out by the
owners of small firms operating in four cities. Growth is comprised of two main areas,
production expansion and knowledge acquisition. Results show that strong ties are
positively related to both types of growth. In contrast, loose ties have no effect on small
business growth in either area. This finding is attributed to the influence of the
collectivistic nature of the mainstream Turkish culture, where owners of small businesses
are likely to rely on in-groups rather than out-groups for advice and for financial support.
Implications of relative absence of weak ties for small business growth and innovation in
emerging economies are discussed. The findings suggest that culture should be included as
a contingency variable in future studies of network strength and growth relationship. The
paper also discusses the possible moderating role of affective and cognition-based trust in
the relation of strong and weak ties to small business growth
Bases of Power and Conflict Intervention Strategy: A Study on Turkish Managers
Purpose – This study developed an influence perspective for managerial intervention in subordinates conflicts, which helped to represent various strategies identified in the literature in a single model. Managers’ power base was then related to their intervention strategies. Drawing upon Social Judgment Theory, anchoring of subordinates positions was studied as a moderating variable.
Methodology – Thirty nine supervisors and their 165 subordinates from several organizations in Turkey filled out a questionnaire reporting power base of supervisor and their intervention strategy utilizing the Critical Incident Technique.
Findings – Referent power of superior led to mediation in subordinates’ conflicts. However, mediation decreased while restructuring, arbitration, and educative strategies increased with increased anchoring of subordinates’ positions. These latter strategies mostly relied on reward power of manager. Subordinate satisfaction was highest with mediation and lowest when supervisors distanced themselves from the conflict.
Limitations/Implications – The present study could only test the moderating effect of escalation as an anchoring variable. Future studies may look at the anchoring effect of whether the dispute is handled in public or in private, and whether the parties have a competing versus collaborative or compromising styles.
Practical implications – Training of managers in mediation may be essential in cultures where they play a focal role in handling subordinates conflicts. Such training may have to take into account their broader influence strategies and use of power.
Originality/Value – An influence perspective is useful in integrating the vast array of managerial intervention strategies in the literature. Furthermore, the anchoring effect provides a theoretical explanation for managers’ use of more forceful intervention with less cooperative subordinates
Bases of Power and Conflict Intervention Strategy: A Study on Turkish Managers
Purpose – This study developed an influence perspective for managerial intervention in subordinates conflicts, which helped to represent various strategies identified in the literature in a single model. Managers’ power base was then related to their intervention strategies. Drawing upon Social Judgment Theory, anchoring of subordinates positions was studied as a moderating variable.
Methodology – Thirty nine supervisors and their 165 subordinates from several organizations in Turkey filled out a questionnaire reporting power base of supervisor and their intervention strategy utilizing the Critical Incident Technique.
Findings – Referent power of superior led to mediation in subordinates’ conflicts. However, mediation decreased while restructuring, arbitration, and educative strategies increased with increased anchoring of subordinates’ positions. These latter strategies mostly relied on reward power of manager. Subordinate satisfaction was highest with mediation and lowest when supervisors distanced themselves from the conflict.
Limitations/Implications – The present study could only test the moderating effect of escalation as an anchoring variable. Future studies may look at the anchoring effect of whether the dispute is handled in public or in private, and whether the parties have a competing versus collaborative or compromising styles.
Practical implications – Training of managers in mediation may be essential in cultures where they play a focal role in handling subordinates conflicts. Such training may have to take into account their broader influence strategies and use of power.
Originality/Value – An influence perspective is useful in integrating the vast array of managerial intervention strategies in the literature. Furthermore, the anchoring effect provides a theoretical explanation for managers’ use of more forceful intervention with less cooperative subordinates
Comments on Sweeny and Gliozzi dynamics for simulations of Potts models in the Fortuin-Kasteleyn representation
We compare the correlation times of the Sweeny and Gliozzi dynamics for
two-dimensional Ising and three-state Potts models, and the three-dimensional
Ising model for the simulations in the percolation prepresentation. The results
are also compared with Swendsen-Wang and Wolff cluster dynamics. It is found
that Sweeny and Gliozzi dynamics have essentially the same dynamical critical
behavior. Contrary to Gliozzi's claim (cond-mat/0201285), the Gliozzi dynamics
has critical slowing down comparable to that of other cluster methods. For the
two-dimensional Ising model, both Sweeny and Gliozzi dynamics give good fits to
logarithmic size dependences; for two-dimensional three-state Potts model,
their dynamical critical exponent z is 0.49(1); the three-dimensional Ising
model has z = 0.37(2).Comment: RevTeX, 4 pages, 5 figure
MICRОCYSTIS AЕRUGINОSA AS A SОURCЕ ОF BIОLОGICAL HAZARDS IN WATЕR RЕSЕRVОIRS ОF UKRAINЕ
Introduction. Phytoplankton, including cyanobacteria, is ubiquitous in various types of reservoirs, and it plays a crucial role in aquatic ecosystems. Among phytoplankton, cyanobacteria, considered one of the most primitive chlorophyll-containing organisms, have a significant presence in both standing freshwater lakes and seawater. Microcystis aeruginosa (M. aeruginosa), a common cyanobacterial species, is known for forming harmful “water blooms” that pose serious ecological and health risks. The rise of urbanization in Ukraine and the consequences of the war has intensified the eutrophication and cyanobacterial blooms in drinking water sources, necessitating improved detection and prevention strategies.
The aim of this study was to develop modern and effective methods for diagnosing microcystin-containing cyanobacteria, particularly M. aeruginosa, to address biological hazards in Ukrainian water reservoirs.
Materials and methods. Water samples were collected from a stagnant town lake in the Ivano-Frankivsk region during both summer and winter seasons to account for seasonal fluctuations in cyanobacteria content. Cyanobacteria were isolated from water samples and subjected to DNA extraction. PCR analysis using specific oligonucleotide primers targeted the 16S rRNA gene of M. aeruginosa.
The results revealed the presence of 16S rRNA products in all water samples, irrespective of the season, indicating a consistent distribution of M. aeruginosa in the lake throughout the year.
Discussion. We found cyanobacteria in all water samples regardless of the season. This indirectly suggests the presence of anthropogenic pollution, which helps maintain a consistent concentration of cyanobacteria throughout the year.
In conclusion, the developed PCR-based method offers a sensitive and specific means of detecting M. aeruginosa, enabling comprehensive investigations across various water reservoirs. The presence of cyanobacteria in water bodies, while natural, can serve as an indicator of anthropogenic pollution, particularly nitrogen and phosphorus. This methodology holds promise for safeguarding Ukraine's drinking water sources and managing the impact of anthropogenic pollution, ultimately ensuring public health through effective planning and preventive measures
Capacitar profissionais para trabalhar/difundir a segurança alimentar e nutricional da comunidade
Trabalho apresentado no II Congresso Nacional do PROJETO RONDON, realizado em Florianópolis, SC, no período de 23 a 25 de setembro de 2015 - Universidade Federal de Santa Catarina.O conceito de Segurança alimentar e Nutricional (SAN) é muito amplo, define-se como o direito de todos ao acesso a alimentos de qualidade e em quantidade, sem comprometer o acesso a outras necessidades essenciais. Além disso, a SAN constitui a prática de uma alimentação adequada com alimentos saudáveis, e consumir nutrientes necessários para as atividades diárias de cada cidadão. Sendo assim, foi desenvolvida durante a Operação Bororos - julho/2015, no Conjunto A de atividades no município de Nortelândia/MT, uma oficina que objetivou o esclarecimento dos direitos supracitados a toda população, além de promover o conhecimento sobre os alimentos que estão disponíveis para o consumo, e quais os benefícios que estes podem trazer para a saúde, sua quantidade e variedade adequada. Além de direcionar formas de promoção à alimentação saudável e de auto produção e consumo. Esta oficina foi desenvolvida na Escola Municipal Júlio Praxe de Duarte com auxílio de recursos audiovisuais para 47 pessoas que incluíam profissionais da área da saúde, merendeiras e comunidade em geral. Foram dois dias de atividade no período integral (manhã e tarde), onde no primeiro dia foram desenvolvidas atividades teóricas sobre conceitos de SAN, componentes dos alimentos, grupos alimentares, e aspectos de higiene alimentar. No segundo dia foram desenvolvidas atividades práticas, sendo construída, no período matutino uma horta comunitária no pátio da escola e no período vespertino praticado o monitoramento da SAN para a população, como exemplo, a realização do cálculo do Índice de Massa Corporal (IMC). Foi verificado que houve impacto das informações sobre a população, que se sentiu esclarecida, sendo ouvidos muitos relatos que deixou exposto que o ato de alimentar-se não expressava tanta preocupação com relação a qualidade e propósito dos alimentos. Também constatou-se que o conhecimento sobre como alimentar-se, e o que ingerir, e o porquê consumir tais alimentos apresentaram conceitos novos. Conclui-se desta forma que a atividade promoveu um impacto sobre a comunidade implicando em sua qualidade de vida, e que poderá ser replicada mesmo após a conclusão do trabalho dos rondonistas
Standardizing Clinical Trials Workflow Representation in UML for International Site Comparison
BACKGROUND: With the globalization of clinical trials, a growing emphasis has been placed on the standardization of the workflow in order to ensure the reproducibility and reliability of the overall trial. Despite the importance of workflow evaluation, to our knowledge no previous studies have attempted to adapt existing modeling languages to standardize the representation of clinical trials. Unified Modeling Language (UML) is a computational language that can be used to model operational workflow, and a UML profile can be developed to standardize UML models within a given domain. This paper's objective is to develop a UML profile to extend the UML Activity Diagram schema into the clinical trials domain, defining a standard representation for clinical trial workflow diagrams in UML. METHODS: Two Brazilian clinical trial sites in rheumatology and oncology were examined to model their workflow and collect time-motion data. UML modeling was conducted in Eclipse, and a UML profile was developed to incorporate information used in discrete event simulation software. RESULTS: Ethnographic observation revealed bottlenecks in workflow: these included tasks requiring full commitment of CRCs, transferring notes from paper to computers, deviations from standard operating procedures, and conflicts between different IT systems. Time-motion analysis revealed that nurses' activities took up the most time in the workflow and contained a high frequency of shorter duration activities. Administrative assistants performed more activities near the beginning and end of the workflow. Overall, clinical trial tasks had a greater frequency than clinic routines or other general activities. CONCLUSIONS: This paper describes a method for modeling clinical trial workflow in UML and standardizing these workflow diagrams through a UML profile. In the increasingly global environment of clinical trials, the standardization of workflow modeling is a necessary precursor to conducting a comparative analysis of international clinical trials workflows
Diversity of teachers’ conceptions related to environment and human rights. A survey in 24 countries
The environmental, social and economical dimensions of ESD include human rights as equality of all the human beings independently to their gender, ethnic group, religion or sexual orientation. To analyse teachers’ conceptions on environment and on human rights, and to identify eventual links between them and with controlled parameters, a large survey has been done in 24 countries (8 749 teachers). The data are submitted to multivariate analyses. In the less developed countries, the teachers’ conceptions are more anthropocentric, less awareness of the problem of the limit of resources in our planet, and less reticent to use GMO (genetically modified organisms). These teachers are more believing in God, more practicing religion, more for “a strong central power”, “against the separation between science and religion”. The priority of ESD in these countries is poverty and development, while it is to avoid wasting and excessive consumption in the most developed countries. The teachers with the most anthropocentric conceptions more agree with these propositions: “It is for biological reasons that women more often than men take care of housekeeping” and “Ethnic groups are genetically different and that is why some are superior to others”, and more disagree with: “Homosexual couples should have the same rights as heterosexual couples”. These points illustrate that some socio-cultural traditions can differ from values of ESD (the universal human rights).CIEC – FCT Research Unit 317
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