نتایج جستجو برای: geographical regions

تعداد نتایج: 396299  

In this study, kriging method applied to mean daily temperature dataset of 663 synoptic and climatic stations from 1961 to 2004 in Iran. So a gridded database of mean daily temperature with 15*15 Km spatial resolution prepared. This database contains 15992 days and 7187 pixels. Based on this grid data extreme temperature database has been calculated using Normalized Temperature Deviation Index....

Journal: :Proceedings. Biological sciences 2001
R Symula R Schulte K Summers

Examples of Müllerian mimicry, in which resemblance between unpalatable species confers mutual benefit, are rare in vertebrates. Strong comparative evidence for mimicry is found when the colour and pattern of a single species closely resemble several different model species simultaneously in different geographical regions. Todemonstrate this, it is necessary to provide compelling evidence that ...

Moein Amoupour Payam Behzadi, Reza Ranjbar

Knowing the type of infections in different geographical regions may help to prevent the distribution of diseases. Vaccines, repellents, mosquito nets and clothes are recommended for preventing the increase of infectious diseases. There are different types of climate and geographical items around the world which determine the kind of skin infections. Travelers' skin diseases are recognized as s...

2016
Pavel KLAPKA Marián HALÁS

Some fifty years in the development of ideas about the definition and use of functional regions are elaborated in this article, as an introduction to this Special Issue of the Moravian Geographical Reports. The conceptual basis for functional regions is discussed, initially in relation to region-organising interactions and their behavioural foundations. This paper presents an approach to functi...

Background: Potato has a narrow genetic base which is due to its development, as it takes its genetic root from a few genotypes originated from South America. Objectives: The objective of this study was to assess the genetic relationships among potato (Solanum tuberosum L.) genotypes originated from different geographical regions.Materials and Methods: This study has rendered 25 use...

2017
Min Yang Jincheng Mei Heng Ji Wei Zhao Zhou Zhao Xiaojun Chen

We study the problem of identifying the topics and sentiments and tracking their shifts from social media texts in different geographical regions during emergencies and disasters. We propose a location-based dynamic sentiment-topic model (LDST) which can jointly model topic, sentiment, time and Geolocation information. The experimental results demonstrate that LDST performs very well at discove...

Journal: :CoRR 2014
Marjan Falahrastegar Hamed Haddadi Steve Uhlig Richard Mortier

The presence of third-party tracking on websites has become customary. However, our understanding of the thirdparty ecosystem is still very rudimentary. We examine thirdparty trackers from a geographical perspective, observing the third-party tracking ecosystem from 29 countries across the globe. When examining the data by region (North America, South America, Europe, East Asia, Middle East, an...

Journal: Desert 2011
E Ebrahimi Ghombavani N Ghahreman

The geographical distribution of growing degree-days (GDDs) within Iran was studied using GIS-based maps. GDDs were calculated using daily thermal parameters (daily maximum and minimum air temperature). Based on the purpose of the study and climatic conditions of Iran, the average value of 5?C was chosen for GDD calculation. The calculations were carried out using daily weather data of 113 mete...

2015
Peter J. Rentfrow Markus Jokela Michael E. Lamb

Recent investigations indicate that personality traits are unevenly distributed geographically, with some traits being more prevalent in certain places than in others. The geographical distributions of personality traits are associated with a range of important political, economic, social, and health outcomes. The majority of research on this subject has focused on the geographical distribution...

Journal: :Revue scientifique et technique 2006
A Scott C Zepeda L Garber J Smith D Swayne A Rhorer J Kellar A Shimshony H Batho V Caporale A Giovannini

The rationale for establishing trade 'regions' and 'zones' is based on principles of epidemiological science and risk analysis that assess and manage animal disease risks so that the safety of trade can be ensured. However, the boundaries of geographical regions and zones may readily be breached through numerous epidemiological pathways. The concept of a 'compartment' extends the application of...

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