Mukhtar Karai

Hakim Sabzevari University

A major environmental problem in large cities and metropolitan areas is the increase in land surface temperatures (LST) caused mainly by heat islands in these areas. The LST anomaly plays an important role in climate studies, agriculture, and water resource management. This study aimed to investigate the seasonal changes and anomaly trends of dayti...

Climate change and land use changes have a significant impact on the hydrological cycle in river basins and water resources in arid and semi-arid regions of the world. Evaluating these changes is necessary to reduce their effects on the basin and develop a suitable strategy to minimize their impacts. Using the LARS-WG and SWAT combined model, this...

Hydrological modelling, especially in urban catchments, relies heavily on accurate rainfall data collection. Therefore, rainfall estimation and establishing a network of raingauge stations is essential, especially for regions with a limited number of stations. To simulate rainfall, the Weather Research and Forecasting (WRF) model was used in this s...

Land Surface Temperature (LST), particularly for the urban environment, is a crucial indicator of urban heat emission, urban climate, global environmental change, and human-environment interactions. In the present study, the spatial distribution of the mean LST was evaluated in association with the 16 explanatory indices at the neighbourhood's leve...

Abstract Background and Objective: In this research, it is tried to find the location of solar panels using climate and geographic information systems in the province of Khuzestan. Material and Methodology: At first, climatic data (total annual precipitation, annual average, sunshine and number of days of dust) related to 21 meteorological station...

Today, North Atlantic Oscillation (NAO) index is one of the factors determining the climate in Iran. To investigate its influences on the rainfall of Iran, the two databases are used. First database: APHRODITE1 daily precipitation in the Middle East with 0.25 × 0.25 degrees from the period of 01/01/1951 up to 31/12/2007 with 20,819 days and 2491 pi...

Southern Oscillation plays a significant role in climate change as a teleconnection pattern. This study employed two databases. The first database is the daily data of precipitation in the APHRODITE’s Water Resources in the Middle East with the dimensions of gridded 0.25 × 0.25° of longitude and latitude in the period from January 1, 1951, to Decem...

This study deals with the assessment and mapping of neotectonic landscape deformation. Multi-criteria decision analysis (MCDA), generalized linear model (GLM), and weighted linear combination (WLC) procedures were conducted for the calculation of the neotectonic landscape deformation index (NLDI). The aim of this study is to evaluate the relative t...

Climate change is expected to influence the cooling energy demand of residential buildings and affect overall thermal comfort. Cooling degree day (CDD) requirements are among the most important human issues in the fields of agriculture, tourism, and energy management in the present and future. Knowing the extent of these changes can be very effecti...

Atmospheric humidity has an important role in the energy balance of the planet Earth, and it is effective in explaining climate change and consequently global warming, which has been a major topic of discussion among scientists in recent decades. Therefore, in this study, the maximum and minimum annual and seasonal trends of the relative humidity o...

Objective The scope of this study was to assess salivary and serum osteoprotegerin (OPG) levels in knee osteoarthritis (OA). Methods Serum and saliva OPG levels of 30 knee OA and 30 matched healthy controls in this cross-sectional study was assessed by ELISA. Knee pain was assessed by WOMAC. Data were analyzed by Student's t-test, Spearman correla...

This paper aims to assess and simulate rainfall in the cities of Khorasan Razavi Province to warn and control floods using the Weather Research and Forecasting (WRF) model. For this purpose, the two rainfall events were selected as the representative of the most severe rains that caused a lot of human and financial losses to the province. According...

Land Surface Temperature (LST), in particular for the urban environment, is a key indicator to characterize urban heat changes, urban climate, global environmental change, and human-environment interactions. However, due to differences in the local spatial variations of LST and the related influence factors, few studies have discussed the spatial n...

Objective The scope of this study was to assess salivary and serum osteoprotegerin (OPG) levels in knee osteoarthritis (OA). Methods Serum and saliva OPG levels of 30 knee OA and 30 matched healthy controls in this cross-sectional study was assessed by ELISA. Knee pain was assessed by WOMAC. Data were analyzed by Student's t-test, Spearman correla...

Examining the land surface temperature (LST) and its mechanism is very significant for urban planning.The purpose of this study is to determine the factors affecting the surface temperature of urban areas of Shiraz. The OLS and GWR were used o determine the effective factors. Also, satellite data of Landsat 8 for summer 2019 were used to obtain the...

Abstract The purpose of this study was to investigate the effect of climate change on the monthly discharge of Karoon Catchment as the largest basin in the country. In this study, five hydrometric stations (Bamdgeh, Telezang, Gharmaleh, Gotvand and Dezful) and three synoptic stations (Ahwaz, Dezful and Masjed Soleiman) were considered. Using the S...

Accordingly, the present study is aimed at investigating quaternary climate changes in Binalod Heights. To identify glacial effects, Morphic indices, field evidence and effects, climatic evidence, and (laboratory) experimental analysis were employed. Determining the permanent snow line in the region was conducted using the Right Method and 65 cirqu...

Precipitation is an important factor in the management of a variety of agricultural and industrial projects. This study investigated the temporal-spatial change of inter-annual precipitation of Iran from 1977 to 2007 by using the APHRODITE precipitation database. Statistical methods were applied, such as spatial auto-correlation, Global Moran's ind...

The purpose of this study is to determine the evapotranspiration in Fars province that in many studies such as hydrological balance of water, irrigation systems design and management, simulation of product volume and management of water resources is very important. To do this, first, required data such as daily temperature, humidity, precipitation,...

In order to investigate the pattern of the rainy days of western Iran, the daily rainfall data from 17 synoptic stations in Hamedan, Kurdistan and Kermanshah provinces were used during the period of 1992-2012. The following values of geopotential height at 500 hPa for courses extraction and the factors and weather types during the event precipitati...

Cooling Degree Days (CDD) requirements are among the most important human issues in the fields of agriculture, tourism, and energy management in the present and future. Knowing the extent of these changes can be very effective on managers' decision-making. The aim of the present study is to investigate changes in cooling requirements under climate...

Limitation of fossil energy reserves in the world and increasing level of energy consumption, have always challenged human to replace new energy sources. Meanwhile, wind power as one of the new aspects of energy is of a special place. Due to the topography of the Sistan and Baluchistan province and its relative position, it is one of the best place...

The main objective of this study was to evaluate the process of parameters such as mean temperature; total precipitation on phenology and phenological stages of apple golden type in Razavi Khorasan. For this reason, long-term data of absolute minimum daily temperature, precipitation, humidity, as well as Digital Elevation Model (DEM) was used. Afte...

Water scarcity has always been one of the most important obstacles in the process of agricultural development in arid and low-rainfall climates. In farming, the water quality also plays an important role; as the poor quality of water can be one of the limiting factors in this sector that in addition to the agricultural problems has also caused soil...

In this study, an attempt has been made to evaluate long-term average variation and fluctuation of Seasonal wind in Iran. For this purpose, wind database network was initially formed over Iran. Then, data from the base of a 30-year period, the daily period of 1/01/1982 to 31/12/2012, was supposed as the basis of the present study, and a cell with d...

The main objective of this study was to investigate the feasibility of prone areas for apple cultivation in Razavi Khorasan province. Therefore, in this study, criteria and sub criteria were considered to determine suitable areas for growing apple trees, and due to the importance of data integration, Analytic Hierarchy Process (AHP) was selected to...

Mass displacement of materials such as landslide is considered among problematic phenomena in Baqi Basin located at southern slopes of Binaloud, Iran; since, it destroys agricultural lands and pastures and also increases deposits at the basin exit. Therefore, it is necessary to identify areas which are sensitive to landslide and estimate the signif...

In this study, an attempt has been made to evaluate long-term average variation and fluctuation of wind in Iran. For this purpose, wind database network was initially formed over Iran. Then, data from the base of a 30-year period, the daily period of 1/01/1982 to 31/12/2012, was supposed as the basis of the present study, and a cell with dimensions...

The incidence of adverse weather conditions and natural disasters have led to the imposition of widespread damages and outages in distribution network, while the number and severity of these events has been growing in recent years mainly. These outages are followed by school closures, disruption of service in emergency centres, huge financial losse...

In today's world, communication is a very important element in achieving sustainable development. Communications have an important role in the exchange of scientific knowledge and many countries in the process of communication have gained the knowledge by applying other countries experiences. The main factor for communication is language. Mastery...

Dr. Nasr is one of the most well-known successful persons in the field of religious sciences. He has special writing in that course which is known as Saint Science. Theory of Saint Science is derived from his mental idea (Unified school, saint affaire, sublimate unification, pluralism strategy into religions). In one side, Nasr believes in Western...

بارش متغيرترين عنصر اقليمی است. اين تغييرات هم در بعد مکان و هم در بعد زمان در قالب اقليم منطقه رخ می‌دهد. هدف از اين مطالعه ارزيابی خودهمبستگی فضايی بارش استان خراسان رضوی می‌باشد. بدين منظور از داده‌های بارش 12 ايستگاه هم‌ديد استان خراسان رضوی استفاده شده است. به منظور دست‌يابی به تغييرات بارش استان خراسان رضوی از روش‌های آمار فضايی مانند خودهمبس...

Therapeutic of apexification with calcium hydroxide has been extensively used in clinical practice, but this technique has some drawbacks (long duration of treatment, weakening of the radicular walls). Different studies have proposed to close the apex opened with MTA (Mineral trioxide Aggregate) which is biocompatible, bacteriostatic, this material...

Background & Objectives: Epidemiological surveillance of infectious diseases through the mandatory-reporting system is crucial for disease prevention program and success in it related to physician, partnership. The aim of this study was to identify statues of notification system among general practitioners (physicians) in Qom. Methods: In this anal...

Background: Oxidized low-density lipoprotein (Ox-LDL), a key factor in the development of atherosclerosis, can cause endothelial dysfunction and augment lipid accumulation within the arterial wall. Increased oxidative stress in diabetes contributes to this process. Ox-LDL is a highly immunogenic molecule and it is not clear whether anti oxidized LD...

Desferroxamine (Desferal) is used to chelate iron in thalassemia, a disease of very high prevalence in various parts of Iran. We have investigated intestinal zinc absorption in Desferal-treated rats which, in pilot experiments, showed low serum levels of both iron and zinc. Intraperitoneal administration of ten 0.5 g doses of Desferal (one injectio...