User profiles for J. Sayas

John Sayas

- Verified email at survey.ntua.gr - Cited by 642

Jordy M Saya

- Verified email at maastrichtuniversity.nl - Cited by 421

Total Synthesis of Aspidosperma and Strychnos Alkaloids through Indole Dearomatization

JM Saya, E Ruijter, RVA Orru - Chemistry–A European Journal, 2019 - Wiley Online Library
Monoterpenoid indole alkaloids are the major class of tryptamine‐derived alkaloids found in
nature. Together with their structural complexity, this has attracted great interest from …

[HTML][HTML] Non-invasive respiratory support in COVID-19: a narrative review

M Lujan, J Sayas, O Mediano, C Egea - Frontiers in Medicine, 2022 - frontiersin.org
Acute respiratory failure secondary to COVID 19 pneumonia may require a variety of non-pharmacological
strategies in addition to oxygen therapy to avoid endotracheal intubation. The …

New facets of urban segregation in southern Europe: Gender, migration and social class change in Athens

VP Arapoglou, J Sayas - European Urban and Regional …, 2009 - journals.sagepub.com
This article explores how primary features of occupational restructuring, such as the feminization
of employment and migration, and changes in patterns of residential mobility of Greek …

Immigration, inequality and diversity: socio-ethnic hierarchy and spatial organization in Athens, Greece

G Kandylis, T Maloutas, J Sayas - European Urban and …, 2012 - journals.sagepub.com
This paper draws attention to the socio-spatial diversity of immigrant groups in Athens by
investigating their changing hierarchical position in both society and space. The varying …

Utilidad de las escalas de sepsis para predecir el fallo respiratorio y la muerte en pacientes con COVID-19 fuera de las Unidades de Cuidados Intensivos

…, J Lora-Tamayo, C De la Calle, J Sayas-Catalán… - Revista clinica …, 2022 - Elsevier
El presente estudio retrospectivo observacional tiene como objetivo analizar la utilidad de
las escalas SOFA (Sequential Organ Failure Assessment), qSOFA (Quick SOFA), NEWS (…

An innovative approach to the protection of cultural heritage: The case of cultural routes in Chios Island, Greece

E Oikonomopoulou, ET Delegou, J Sayas… - Journal of …, 2017 - Elsevier
In this study, the role of cultural routes in the protection and promotion of cultural heritage
context in rural areas is examined within the frame of sustainable and spatial development. …

Recommended approaches to minimize aerosol dispersion of SARS-CoV-2 during noninvasive ventilatory support can cause ventilator performance deterioration: a …

…, B Langevin, J Sayas, J Gonzalez-Bermejo… - Chest, 2021 - Elsevier
Background SARS-CoV-2 aerosolization during noninvasive positive-pressure ventilation
may endanger health care professionals. Various circuit setups have been described to …

Lessons from COVID-19 in the management of acute respiratory failure

C Crimi, P Murphy, M Patout, J Sayas, JC Winck - Breathe, 2023 - Eur Respiratory Soc
J. Sayas reports grants or contracts from SEPAR+Philips, outside the submitted work;
participation on Advisory Boards for RESMED, and Philips, outside the submitted work; and receipt …

[HTML][HTML] Noninvasive ventilation for severely acidotic patients in respiratory intermediate care units: precision medicine in intermediate care units

…, F Rodríguez-Jerez, J Sayas… - BMC pulmonary …, 2016 - Springer
Background Severe acidosis can cause noninvasive ventilation (NIV) failure in chronic
obstructive pulmonary disease (COPD) patients with acute hypercapnic respiratory failure (AHRF)…

Urban sprawl in the periurban coastal zones of Athens

JP Sayas - The Greek Review of Social Research, 2006 - ejournals.epublishing.ekt.gr
Urban sprawl has for quite a long time been a central issue in urban and regional analysis
and planning practice. Most of the theoretical and empirical work however, has focused on …