Aristotle University of Thessaloniki
Thessaloniki, Greece

The Aristotle University of Thessaloniki is among the oldest and most prestigious higher education institutions of Greece. It is the largest university in Greece and in the Balkans. It is named after the philosopher Aristotle, who was born in Stageira, about 55 km east of Thessaloniki. Its campus covers 230,000 square metres in the centre of Thessaloniki, with additional educational and administrative facilities elsewhere.More than 95,000 students study at the Aristotle University, 86,000 in undergraduate programmes and 9,000 in postgraduate programmes. The Teaching and Research Staff number 2,248 people , the Scientific Teaching Staff number 84 and the Special Laboratory Teaching Staff 275 people. They are supported by 309 members of the Special Technical Laboratory for teaching services and the 1028 administrative staff.The language of instruction is Greek, although there are programs in foreign languages and courses for international students, which are carried out in English, French, German, and Italian. Wikipedia.

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Aristotle University of Thessaloniki and PAVLIDIS & Partners Co. | Date: 2017-02-01

Method for snail extract acquisition, more particularly of Cornu aspersum, comprising at least two steps, being remarkable in that a first step for obtaining the extract consists of a non stressful snail extract acquisition, wherein a batch of snails is selected which are brought to move by crawling on a set of surface means, particularly glass plates, under a set of predetermined conditions including moisture, temperature and duration, yielding a quantity of clear pedal mucus, which is removed from said surface means and placed into receptacles. It is followed by a further step consisting of drying with a subsequent resuspension step of the produced snail extract, resp. of a centrifugation of said snail extract.

Hatzimouratidis K.,Aristotle University of Thessaloniki
European urology | Year: 2010

Erectile dysfunction (ED) and premature ejaculation (PE) are the two most prevalent male sexual dysfunctions. To present the updated version of 2009 European Association of Urology (EAU) guidelines on ED and PE. A systematic review of the recent literature on the epidemiology, diagnosis, and treatment of ED and PE was performed. Levels of evidence and grades of recommendation were assigned. ED is highly prevalent, and 5-20% of men have moderate to severe ED. ED shares common risk factors with cardiovascular disease. Diagnosis is based on medical and sexual history, including validated questionnaires. Physical examination and laboratory testing must be tailored to the patient's complaints and risk factors. Treatment is based on phosphodiesterase type 5 inhibitors (PDE5-Is), including sildenafil, tadalafil, and vardenafil. PDE5-Is have high efficacy and safety rates, even in difficult-to-treat populations such as patients with diabetes mellitus. Treatment options for patients who do not respond to PDE5-Is or for whom PDE5-Is are contraindicated include intracavernous injections, intraurethral alprostadil, vacuum constriction devices, or implantation of a penile prosthesis. PE has prevalence rates of 20-30%. PE may be classified as lifelong (primary) or acquired (secondary). Diagnosis is based on medical and sexual history assessing intravaginal ejaculatory latency time, perceived control, distress, and interpersonal difficulty related to the ejaculatory dysfunction. Physical examination and laboratory testing may be needed in selected patients only. Pharmacotherapy is the basis of treatment in lifelong PE, including daily dosing of selective serotonin reuptake inhibitors and topical anaesthetics. Dapoxetine is the only drug approved for the on-demand treatment of PE in Europe. Behavioural techniques may be efficacious as a monotherapy or in combination with pharmacotherapy. Recurrence is likely to occur after treatment withdrawal. These EAU guidelines summarise the present information on ED and PE. The extended version of the guidelines is available at the EAU Web site ( Copyright © 2010 European Association of Urology. Published by Elsevier B.V. All rights reserved.

Semaltianos N.G.,Aristotle University of Thessaloniki
Critical Reviews in Solid State and Materials Sciences | Year: 2010

This review concerns nanoparticles collected in the form of nanopowder or a colloidal solution by laser ablating a solid target that lies in a gaseous or a liquid environment. The paper discusses the advantages of the method as compared with other methods for nanoparticle synthesis, outlines the factors on which the properties of the produced nanoparticles depend, explains the mechanisms and models involved in the generation of nanoparticles by laser ablation, clarifies the differences between nanoparticle generation in gaseous and liquid environments, presents some experimental desigins and equipment used by the several groups for nanoparticle generation by laser ablation, describes the techniques used for tuning the width of the nanoparticles size distribution, and finally presents a few interesting examples of nanoparticles generated by laser ablation. © 2010 Taylor and Francis Group, LLC.

Misaelides P.,Aristotle University of Thessaloniki
Microporous and Mesoporous Materials | Year: 2011

The natural zeolites have already found extensive applications to the environmental remediation and restoration. The most of these applications are based on their ion-exchange properties. This contribution provides a short review of the recent literature concerning the utilization of natural zeolites and their modified forms in the separation, binding and chemical stabilization of hazardous inorganic, organic and radioactive species in soils and aqueous systems. The advantages and eventual disadvantages of the techniques are also discussed. © 2011 Elsevier Inc. All rights reserved.

Moschakis T.,Aristotle University of Thessaloniki
Current Opinion in Colloid and Interface Science | Year: 2013

Particle tracking microrheology, an emerging experimental technique, which utilizes the Brownian motion of embedded particles to probe local dynamics of soft materials, is presented. Particle tracking microrheology is a powerful technique that enables the measurement of viscoelastic responses in small sample volumes, which are inaccessible to macrorheology and to spatially map structural heterogeneities at a microlevel. Therefore, particle tracking microrheology has considerable potential in food emulsions and gels, since these systems are commonly inhomogeneous. Recent advances and achievements are discussed, including the basic principles, operating regimes and limitations of the technique. The application of the technique in the field of food gels and emulsions to study the evolving dynamics of inhomogeneous at microscale length systems and during sol-gel transition is highlighted. © 2013 Elsevier Ltd.

Topouzis F.,Aristotle University of Thessaloniki
American journal of ophthalmology | Year: 2013

To investigate the association of open-angle glaucoma (OAG), primary open-angle glaucoma (POAG), and pseudoexfoliative glaucoma (PEXG) with ocular perfusion pressure status (ocular perfusion pressure with or without antihypertensive treatment). Cross-sectional, population-based study. A total of 2554 randomly selected, ≥ 60-year old subjects participated in the Thessaloniki Eye Study. Only clinic-visit participants (n = 2261), who had uniformly collected data, were included in the analyses. A logistic regression model was run for OAG in all clinic-visit participants; covariates included age, sex, diastolic ocular perfusion pressure, antihypertensive treatment, intraocular pressure (IOP), IOP-lowering treatment, pseudoexfoliation, and vascular factors identified as risk factors for glaucoma in a previous analysis. Similar logistic regression models were run separately for POAG and PEXG. In addition, logistic regression models were run for OAG, POAG, and PEXG in subjects with and without antihypertensive treatment. Also, logistic regression models were run to assess the role of systolic ocular perfusion pressure in OAG, POAG, and PEXG. Among clinic-visits, 1212 subjects (53.7%) were using antihypertensive treatment. An association of borderline significance was found between low diastolic ocular perfusion pressure and POAG (OR = 0.84 per 10 mm Hg, 95% CI = 0.70-1.01, P = .059). The effect of antihypertensive treatment on POAG was not statistically significant (OR = 1.20, 95% CI = 0.75-1.91, P = .45). In subgroup analyses, diastolic ocular perfusion pressure was significantly associated with POAG in subjects using antihypertensive treatment (OR = 0.78 per 10 mm Hg, 95% CI = 0.62-0.97, P = .028). No association was found between diastolic ocular perfusion pressure and PEXG, regardless of the use of antihypertensive treatment. No associations were found between systolic ocular perfusion pressure and OAG, POAG, or PEXG, regardless of the use of antihypertensive treatment. Low diastolic ocular perfusion pressure may be associated with increased risk for POAG. This association was confirmed in subjects treated for systemic hypertension in subgroup analysis. This may support the hypothesis that the concept of ocular perfusion pressure status may be more relevant to glaucoma pathogenesis than ocular perfusion pressure alone. Copyright © 2013 Elsevier Inc. All rights reserved.

Papa A.,Aristotle University of Thessaloniki
Journal of Clinical Virology | Year: 2013

West Nile virus is a mosquito-borne flavivirus causing to humans a variety of symptoms, from asymptomatic or mild infection, to severe, and often fatal, infection of the central nervous system. The present review aims to describe the main clinical characteristics of the disease, to provide the recent epidemiological data, including those from the recent outbreaks in Greece, and to discuss the environmental factors which might play a role in the virus emergence and its wider dispersal. © 2013 Elsevier B.V.

The invention concerns an ultra-sensitive and accurate electrical impedance spectroscopy technique for the detection and characterization of bubbles in liquids that is required in numerous industrial processes as well as in the humans blood circulation during Decompression Sickness. The method is based on measuring non-invasively the electrical impedance variation of two-phase mixtures: liquid as conductive phase, resp. gas as non-conductive phase, applying an AC excitation signal of the proper frequency value identified by preliminary frequency scanning. The system takes advantage of innovative signal acquisition (hardware) device, and digital signal processing (software) methods and manages to detect accurately for the first time even the presence of a few bubbles corresponding to extremely low volumetric gas fraction values, up to < 0,1%. Also, the high measurement sensitivity of 0,001% in conjunction with advanced signal processing provides valuable qualitative and quantitative information on bubble size characteristics and allows for correlating bubble size to the spectral content of acquired signals.

Aristotle University of Thessaloniki | Date: 2016-05-11

The present invention relates to anti-counterfeiting and authentication digital marking, including marking conveyed through multiple types of signatures, notably to a method for applying on metallic products different layers corresponding to different signature types. It also relates to a system capable of exciting automatically and with high security the data mark in order to retrieve, overlay and transmit a number of plural-bit messages with steganographic properties. A first type of signature corresponds to an optically captured image data which is only visible under a non-visible spectrum illumination; a second type also to an optically captured image data which is only visible under a different second non-visible spectrum illumination; and a third type to an optically captured image data of magneto-optical filter which is only detectable under a controlled variable magnetic excitation.

Agency: GTR | Branch: ESRC | Program: | Phase: Research Grant | Award Amount: 161.44K | Year: 2015

EVI-MED - Constructing an evidence base of contemporary Mediterranean migrations seeks to conduct urgent data collection and essential analysis on the Mediterranean migration crisis and to make these swiftly and publicly available to policymakers, practitioners, migrant community support organisations, and the research community. EVI-MED will provide insights into the major humanitarian, social, economic and political implications for the principal countries of arrival - above all Italy and Greece - as well as Malta which is a central pillar of the search and rescue effort. The project is also relevant to other potential countries of reception and settlement in Europe, including the United Kingdom. This will be achieved through a diversity of research methods, including: A) The collection and standardization of a broad range of secondary data on migration, including statistics provided by search and rescue organisations and national and European bodies which will be integrated with data-sets made available by international NGOs, to create a synthetic database on migration trends and characteristics of flows. B) A survey of individual migrants - with at least 750 participants across Sicily, Greece and Malta - providing insight into profiles, routes, experiences and migration plans. This survey data will be complemented by 45 in-depth interviews focusing on migrant life-histories, decision making and use of networks. C) A systematic mapping of the reception systems in Sicily, Greece and Malta, identifying governmental and non-governmental actors involved in the identification, management, reception, integration and potential return of migrants who make the journey across the Mediterranean. D) Overall analysis of the migration and reception situation, derived from the above data-sets and integrated with further interviews with experts and practitioners, the contribution of international advisors, and the evidence emerging from the existing literature and other research and ongoing research activities. The project benefits from close collaboration with a number of well-established specialist organisations, including the Greek Council for Refugees, the Migrant Offshore Aid Station (MOAS), Migrant Report, Borderline Sicily, People for Change Foundation Malta and with expert knowledge of countries of origin provided by the Regional Mixed Migration Secretariat (RMMS), a project of the Danish Refugee Council working in the Horn of Africa and Middle East. EVI-MEDs wide-ranging engagement platform capitalises on the network of collaborations and partnerships established with Middlesexs Mediterranean Observatory on Migration Protection and Asylum (MOMPA) - a joint initiative of Middlesex University London and Middlesex University Malta. The project outputs - including data-sets, policy briefs, academic articles, situation reports, interactive maps - will be made available through the project website, in order to advertise them as widely as possible through EVI-MEDs engagement platform, networks and social media provided by partners and collaborating organisations. Other outputs include conferences, knowledge exchange events, consultations and briefings with national and European policymakers.

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