138 articles for “Seasonal”

Research ArticleOpen accessEvery word in the titleOn Replenishing Items with Seasonal Intermittent DemandGary Mitchell, Meike NiederhausenProblem statement: There are numerous difficulties associated with replenishing intermittent demand items and these are compounded when the demand distribution(s) vary seasonally. Excess inventories during an “off” season are typical, while shortages frequently occur during the “in” season, especially at the transition points between “seasons”. Approach: Evaluate the extent to which items characterized by non-stationary (seasonal) intermittent demand can be … …American Journal of Economics and Business Administration, Vol. 2, Issue 1 · 31 Mar 2010 · 7,542 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSeasonal Variations of n-6: n-3 Ratios and Fatty Acid Compositions in Foot and Tissue of Chiton lamyi in a High Primary Productivity AreaNooshin Sajjadi, Peyman Eghtesadi-Araghi, Shahla Jamili et al.Problem statement: Fatty acid content and composition in mollusks is a function of their feeding diversity. Chabahar bay located in the northern part of Oman sea in Indian ocean provides high rates of primary productivity and a diverse food source for mollusks in this area. Identification of fatty acid compositions of Chiton lamyi and study their seasonal changes in the … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,198 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleEpidemiology and Seasonal Pattern of Malaria in an Irrigated Area of Eastern SudanYousif El-Safi Himeidan, Efatih. M. Malik, Ishag AdamEpidemiological patterns of malaria are widely different; such information can help programs to design interventions relevant to situation. This cohort study investigated the epidemiology of malaria in Dipaira camp, an irrigated area, in eastern Sudan during the period July 2004 to Jun 2005. At baseline, the relevant socio-demographic factors and the monthly malaria parasitological surverys were carried-out. Thirty- six (4.1%) … …American Journal of Infectious Diseases, Vol. 1, Issue 2 · 30 Jun 2005 · 6,973 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleStudies on the Seasonal Changes in Antioxidant Enzymes Activity on Differently, Polluted Areas along the Bay of Bengal Employing Perna viridis as an Animal ModelC. Amutha, P. SubramanianAntioxidants are the innate or acquired molecules capable of slowing down or preventing the oxidative damage (damage due to reactive oxygen species) that caused by free radicals. The antioxidant enzyme activity in response to season as well as hydrocarbon pollution was attempted. Rayapuram fishing harbor of Chennai (Station-1) is highly oil contaminated with oil sleeks on the surface. The relatively … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 2 · 31 Jul 2012 · 7,670 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSeasonal Pattern of Varroa Mite Infestation and Its Impact on Honey Production in Apis mellifera Beekeeping in Chitwan, NepalSujan Amgai, Kedar DevkotaHoneybee colony health and productivity are severely affected by infestations of Varroa mites, which have become one of the most significant threats to apiculture due to their role in colony weakening, reduced productivity, and increased colony losses worldwide. The study was conducted in Chitwan district to assess beekeepers’ perceptions on mite infestation in different seasons, its effect on honey production, … …American Journal of Agricultural and Biological Sciences, Vol. 21, Issue 1 · 14 Aug 2026 · 1,245 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSeasonal Abundance and Species Composition of Nephotettix spp., in Endemic and Non-Endemic Areas of Rice Tungro Virus Disease in South Sulawesi Province, IndonesiaAndi Nasruddin, Muhammad Danial Rahim, FatahuddinRice tungro disease is semi-persistently transmitted by five species of leafhopper. Nephotettix virescens Distant and N. nigropictus Stal. (Homoptera: Cicadellidae) are predominant species in South Sulawesi with vectoring efficiencies of 83 and 27%, respectively. Relative composition of those species affects the RTV incidence in the field. The purpose of the study was to determine the presence and abundance of those … …OnLine Journal of Biological Sciences, Vol. 16, Issue 3 · 5 Oct 2016 · 7,591 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSEASONAL DROUGHT DYNAMICS IN EL-BEHEIRA GOVERNORATE, EGYPTAmr Mossad, Hazem S. Mehawed, Ahmed El-ArabyDrought is the most damaging climate-related hazards due to the prolonged absence of precipitation. Therefore, understanding the drought dynamics is important for irrigation water management to mitigate the negative impacts on agriculture. In this study, Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI) were used as effective tools for tracking the changes of water status occurred at five … …American Journal of Environmental Sciences, Vol. 10, Issue 2 · 4 Apr 2014 · 7,627 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleAPPLYING SEASONAL CLIMATE TRENDS TO AGRICULTURAL PRODUCTION IN TANJUNG KARANG, MALAYSIAMohd Ekhwan Toriman, Lee Qiao Yun, Mohd Khairul Amri Kamarudin et al.The North West Selangor Integrated Agriculture Development Agency (NWS-IADA) is the most productive agricultural part in Selangor, Malaysia. This is partly because of the inherent high fertility of the soils and the moderate variable climate. However, with increasing global concern about climate impacts, this article examines relative importance of climate influences on the paddy production rate over 28 years (1980-2008). … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 1 · 6 Jan 2014 · 7,917 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSpecies Composition, Ecological Parameters and Seasonal Changes of Planktonic Ciliates Population in Bukan Dam ReservoirA. Mohsenpour Azary, F. Mohebbi, A. Eimanifar et al.Problem Statement: Since there is no evidence to identify present species in the Bukan dam reservoir, therefore, this study was conducted to provide background for fisheries purposes. Approach: The abundance and species composition of ciliates were analyzed in the Bukan Dam reservoir (west Azerbaijan, Iran) from January to December 2007. Surface water samples were collected at monthly intervals at two … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 7,787 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSeasonal Distribution of Organic Carbon in the Surface Sediments of the Terengganu Nearshore Coastal AreaS. Hasrizal, B. Y. Kamaruzzaman, I. Sakri et al.Problem statement: The distribution of organic carbon in the surface sediment is a crucial indicator for current productivity in the ocean especially in the nearshore area. The difference of organic carbon in the surface sediment reflects the influence of current movement on the bottom sediment. Approach: This study was carried out to oversee the difference of organic carbon distribution during … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 7,477 accessesView PDF Cite