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Related to communities

6991 documents, page 1 of 700

[Çorum Vilayet Kütüphanesi'nde bulunan "Elfaz-ı Küfür" adlı kitaptan bir belge]

(2017)
Taha Toros Arşivi, Dosya No: 134/B-Kahve İstanbul Kalkınma Ajansı (TR10/16/YNY/0101) İstanbul Development Agency (TR10/16/YNY/0101)

Apathy in early and late-life depression

Groeneweg-Koolhoven, Isis; Ploeg, Merel; Comijs, Hannie C.; Penninx, Brenda W. J. H.; Mast, van der, Roos C.; Schoevers, Robert A.; Rhebergen, Didi; van Exel, Eric (2017)
Embargo end date: 2018/12/01
Abstract: Background: Late-life depression is thought to differ in clinical presentation from early-life depression. Particularly, late-life depression is considered to be more characterized by apathy than is early-life depression. Lacking convincing evidence, this study examines the presence and associated socio-demographic/clinical characteristics of apathy in older compared to younger depressed persons. Methods: This cross-sectional study used data from two naturalistic cohort studies, i.e...

Effects of random delay errors in continuous-time semi-digital transversal filters

Özgün, Mehmet Tamer; Torlak, Murat (2014)
The implementation of transversal filters requires basic circuit elements such as adders, multipliers and (unit) delay elements. The filters designed under infinite precision of these elements may behave differently when implemented with components with limited accuracy. In fact, the effects of the coefficient inaccuracies in analog and digital transversal filters have been investigated extensively in the literature ,. On the other hand, the effects of the unit delays with limited precision h...

Spectral modular arithmetic for binary extension fields

Saldamlı, Gökay; Baek, Yoo-Jin; Koç, Çetin Kaya (2011)
We describe a method of carrying multiplication in the binary extension fields. The new method fully operates on the Fourier representations of the field elements by successively applying the convolution property and a reduction technique defined on the Fourier coefficients. With some careful parameter selection, the method yields highly parallel architectures for operations involving several field multiplications such as the scalar multiplication calculation of elliptic curve cryptography.

AdScope : intelligent scoping of paid search campaigns using relevance feedback

Çoğalmış, Kevsernur (2015)
Tezin basılısı İstanbul Şehir Üniversitesi Kütüphanesi'ndedir. In this thesis, we propose a semi-supervised online tool called AdScope for search engine marketing. AdScope can be used for filtering out unprofitable user queries from the search campaign while at the same time allowing profitable queries only. AdScope uses relevance feedback for classifying user queries broadly into two categories as relevant or non-relevant. All queries labeled as non-relevant are excluded from the...

Multivariate statistical modelling of future marine storms

Lin Ye, Jue; García León, Manuel; Gracia Garcia, Vicente; Ortego Martínez, María Isabel; Lionello, Piero; Sánchez-Arcilla Conejo, Agustín (2017)
Embargo end date: 2019/05/01
Extreme events, such as wave-storms, need to be characterized for coastal infrastructure design purposes. Such description should contain information on both the univariate behaviour and the joint-dependence of storm-variables. These two aspects have been here addressed through generalized Pareto distributions and hierarchical Archimedean copulas. A non-stationary model has been used to highlight the relationship between these extreme events and non-stationary climate. It has been applied to ...

Influence of adding phase change materials on the physical and mechanical properties of cement mortars

Cunha, Sandra Raquel Leite; Lima, Marine; Aguiar, J. L. Barroso de (2016)
Embargo end date: 2019/01/01
During the last years several studies of construction materials with incorporation of encapsulated phase change material (PCM) have been published. However, the utilization of non-encapsulated PCM is one of the main gaps. The main objective of this work was the study of physical and mechanical properties of cement mortars with incorporation of non-encapsulated PCM. It was possible to conclude that the utilization of non-encapsulated phase change materials can be seen as a good and more econom...

The impacts of urban sprawl on ecological connectivity in the Montreal Metropolitan Region

Dupras, Jerôme; Marull López, Joan; Parcerisas i Benedé, Lluís, 1978-; Coll, Francesc; González, Andrew; Girard, Marc; Tello, Enric (2016)
Embargo end date: 2018/04/30
Urban sprawl is a widely recognized phenomenon in many major cities worldwide and is a significant land use planning and management issue. This process has many impacts on the ecological function and structure of the landscape. In this article, we analyze the effects of urban sprawl on the ecological patterns and processes in the Montreal Metropolitan Region (MMR) between 1966 and 2010.

Survey and Experimental Analysis of Event Detection Techniques for Twitter

Weiler, Andreas; Grossniklaus, Michael; Scholl, Marc H. (2017)
Embargo end date: 2018/03/31
Twitter's popularity as a source of up-to-date news and information is constantly increasing. In response to this trend, numerous event detection techniques have been proposed to cope with the rate and volume of Twitter data streams. Although most of these works conduct some evaluation of the proposed technique, a comparative study is often omitted. In this paper, we present a survey and experimental analysis of state-of-the-art event detection techniques for Twitter data streams. In order to...

Design of adaptive funnel control for oxygenation in ventilation therapy

Ramón Alfocea, Sergio (2014)
Embargo end date: 2024/07/17
[ANGLÈS] The aim of this thesis is to design a control system for regulating oxygenation during mechanical ventilation therapy. For this purpose, funnel control is designed and applied for improving oxygenation. It uses a feedback gain, which depends on the error of the system and a prescribed funnel. Thus, a description of cardiopulmonary system is mathematically modeled using Simulink. A simulation of ventilation therapy is carried out based on delivering proper fraction of inspired oxygen ...