Search results for "old"
showing 10 items of 6469 documents
New methodologies in transition metal catalysis. Organofluorine chemistry as the benchmark application.
2017
A lo largo de las últimas décadas, los compuestos organofluorados han encontrado numerosas aplicaciones dentro del campo de las industrias farmacéutica y agroquímica, así como en ciencias de los materiales. Dadas las singulares propiedades del átomo de flúor, éste es capaz de inducir alteraciones significativas en propiedades físico-químicas de las moléculas como lipofilia, distribución de cargas, acidez-basicidad, capacidad de formar enlaces de hidrógeno e incluso, equilibrios conformacionales. Sin embargo, la presencia de flúor en productos naturales es escasa. De hecho, la gran mayoría de las moléculas orgánicas que contienen flúor son sintéticas. De ahí el gran interés por parte de la c…
Social accounting and its contribution to society
2013
With the development of the society and its economic system, a need has emerged to develop accounting as well. The increasing role of social accounting, which keeps records of for-profit, non-profit, and governmental organisations, is associated with the complexity of the environment in which businesses and organisations are operating and presenting reports about their social, ethical, and environmental aspects. Organisations are subject to greater transparency, and many stakeholders are interested in and concerned about the performance of organisations within the context that is not reflected, to a satisfactory extent, in traditional accounting. Traditional accounting ensures reporting to …
Complications of ambulatory oral surgery in patients over 65 years of age
2004
En los pacientes mayores de 65 años es común la presencia de enfermedades sistémicas graves como la hipertensión arterial, accidentes cerebrovasculares, enfermedades cardíacas, diabetes mellitus y las enfermedades mentales, lo que conlleva que consuman diversos tipos de medicamentos para su tratamiento. Este hecho puede repercutir sobre la salud bucodental de estos pacientes y hay que tenerlas en cuenta a la hora de efectuar cualquier tratamiento odontológico. Se ha realizado un estudio retrospectivo en 196 pacientes mayores de 65 años para constatar qué tipo de tratamiento quirúrgico se practicó en ámbito ambulatorio bajo anestesia locorregional valorando la presencia de patología sistémic…
Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range
2021
Qvenild T, Fjeld E, Fjellheim A, Hammar J, Hesthagen T and Lakka H-K. 2021. Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range. Fauna norvegica 41: 50–88. The Arctic tadpole shrimp Lepidurus arcticus has a circumpolar distribution and the Scandes (Fennoscandian Mountains) marks its southernmost limit in Europe. Within this area, 391 natural and 88 regulated lakes with L. arcticus have been identified, of which 87% are above the treeline. The lakes hosting L. arcticus decrease in altitude from south to north, which results from its temperature preferences. The majority of the locations are at a lower lake air t…
Parametric sensitivity of a CFD model concerning the hydrodynamics of trickle-bed reactor (TBR)
2016
Abstract The aim of the present study was to investigate the sensitivity of a multiphase Eulerian CFD model with respect to relations defining drag forces between phases. The mean relative error as well as standard deviation of experimental and computed values of pressure gradient and average liquid holdup were used as validation criteria of the model. Comparative basis for simulations was our own data-base obtained in experiments carried out in a TBR operating at a co-current downward gas and liquid flow. Estimated errors showed that the classical equations of Attou et al. (1999) defining the friction factors Fjk approximate experimental values of hydrodynamic parameters with the best agre…
CCDC 1814033: Experimental Crystal Structure Determination
2018
Related Article: Guocheng Deng, Sami Malola, Juanzhu Yan, Yingzi Han, Peng Yuan, Chaowei Zhao, Xiting Yuan, Shuichao Lin, Zichao Tang, Boon K. Teo, Hannu Häkkinen, Nanfeng Zheng|2018|Angew.Chem.,Int.Ed.|57|3421|doi:10.1002/anie.201800327
CCDC 1814032: Experimental Crystal Structure Determination
2018
Related Article: Guocheng Deng, Sami Malola, Juanzhu Yan, Yingzi Han, Peng Yuan, Chaowei Zhao, Xiting Yuan, Shuichao Lin, Zichao Tang, Boon K. Teo, Hannu Häkkinen, Nanfeng Zheng|2018|Angew.Chem.,Int.Ed.|57|3421|doi:10.1002/anie.201800327
From Rationality to Emotionally Embedded Relations: Envy as a Signal of Power in Stakeholder Relations
2015
Although stakeholder salience theory has received a great deal of scholarly attention in the business ethics and management literature, the theory has been criticized for overemphasizing rationality in managerial perceptions. We argue that it is important to better understand what socially constructed emotions signal in business relations, and we posit the role of envy as a discursive resource used to signal and construct the asymmetrical power relations between small business owner–managers and their stakeholders. Our study is based on a qualitative study on discursive accounts elicited from 33 interviews with small business owner–managers in Finland. Our study makes two primary contributi…
Demo 70. Turbulencia
2013
Objetivos: Comprender la utilizad del número de Reynolds para predecir la ocurrencia de turbulencia.
Neksusanalyysi suomen kielen oppimisesta siivoustyössä
2017
This dissertation focuses on Finnish language learning opportunities in cleaning work, which is the most common job for immigrants in Finland. The study investigates what opportunities and constraints there are for Finnish language learning in cleaning work, how a work community supports language learning, and what factors facilitate or constrain investment in language learning at work. Language learning opportunities are explored from an ecological approach as affordances – the reciprocal relations between an individual and his/her social and physical environment. The study also explores the scaffolding provided by the work community and investment in second language learning. Nexus analys…