17 research outputs found

    KSU Traffic: Optimizing Campus Flow

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    Traffic is a problem in all major cities and while it can be improved, it will likely never be eliminated. Both the Kennesaw and Marietta campus of Kennesaw State University (KSU) experience traffic delays during peak class periods. To remedy this problem on the KSU Marietta campus, data was collected at different hours of the day over a few weeks at the South Marietta Pkwy/West Main Entrance SE intersection. This data was used in simulations to determine whether the best solution to decrease traffic would be to alter the timing of the traffic lights or construct a right turning lane out of campus. Based on analysis, including a cost-benefit economic interpretation, it is suggested that constructing a right turning lane out of campus is the best solution to the problem

    The Impact of Climate Change on Biodiversity in Nepal: Current Knowledge, Lacunae, and Opportunities

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    Nepal has an extreme altitudinal range from 60–8850m with heterogeneous topography and distinct climatic zones. The country is considered a biodiversity hotspot, with nearly a quarter of the land area located in protected areas. Nepal and the surrounding Himalayan region are particularly vulnerable to climate change because of their abrupt ecological and climatic transitions. Tens of millions of people rely on the region’s ecosystem services, and observed and modeled warming trends predict increased climate extremes in the Himalayas. To study the ecological impacts of climate change in Nepal and inform adaptation planning, we review the literature on past, present, and predicted future climatic changes and their impacts on ecological diversity in Nepal. We found few studies focusing on organisms, while research on species and communities was more common. Most studies document or predict species range shifts and changes in community composition. Results of these few investigations highlight major lacunae in research regarding the effects of changing climate on species comprising the Himalayan biota. Further empirical work is needed at all levels of biological organization to build on information regarding direct ecological impacts of climatic changes in the region. Countries face an ever-increasing threat of climate change, and Nepal has strong physiographic, elevational, and climatic gradients that could provide a useful model for studying the effects of climate change on a mountainous, and highly biodiverse, area

    Potential suitable habitat of Eleusine coracana (L) gaertn (Finger millet) under the climate change scenarios in Nepal

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    Abstract Background Finger millet is the fourth major crop in Nepal and is cultivated in a traditional integrated subsistence system. Timely rain and appropriate temperature predominately affects crop distribution and yield. Climate change is evident in Nepal and it is imperative to understand how it affects habitat suitability of finger millet. Main objective of this study was to map the current suitable habitat and predicting the potential changes in the future under different climate scenarios in Nepal. Habitat mapping is important for maximizing production and minimizing the loss of local landraces. Results Maxent model was used in this study to quantify the current suitable habitat and changes in the future habitat suitability of finger millet, based on representative concentration pathways (RCP) (RCP 2.6, 4.5, 6.0 and 8.5) in two different time periods (2050 and 2070AD) using climatic predictive variables and species localities. The model shows that 39.7% (58512.71 km2) area of Nepal is highly suitable for finger millet, with cultivation mostly between 96 and 2300 m above sea level. Eastern and central parts of Nepal have more suitable areas than western parts. Our research clearly shows that the future climatic suitable area of finger millet would shrink by 4.3 to 8.9% in 2050 and 8.9–10.5% under different RCPs by 2070. Conclusion Finger millet is mostly cultivated in mid-hill terraces. The substantial increase in temperature due to climate change may be one reason for decrease in habitat suitability of finger millet. This situation would further threat loss of local landraces of finger millet in the future. The findings can help in planning and policy framing for climate resilient smart agriculture practice

    Why do patients choose to consume Ayurvedic Medicines in Nepal? An exploratory study

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    Ayurvedic medicines are believed to bring harmony and balance in mind, body, spiritual well-being and social welfare of human. The reasons for preference for these medicines are of great interest for exploration. This study was carried out in Nepal in 2017 to explore the reasons for choosing to consume Ayurvedic medicines, with support of a separate survey focusing on these medicines containing Neopicrorhiza scrophulariiflora. An online survey (n=58) and face to face interviews (n=406) were administered using structured questionnaires to explore those reasons for choice. Neopicrorhiza scrophulariiflora (Pennell) D. Y. Hong (Scrophulariaceae) is a perennial alpine herb found in the subalpine as well as alpine zone of the eastern Himalayas comprising Sikkim, Nepal, Bhutan and China. Its rhizomes are medicinally important and in trade. Fewer or no side effects, preference to natural way of healing, belief regarding healing of disease, ease of access (availability and cost), and advertisement and recommendation from others were the major reasons that the patients chose to consume Ayurvedic medicines for own's healing. In case of Ayurvedic medicines containing Neopicrorhiza scrophulariiflora, majority of the patients believed that these medicines have fewer or no side effects, can cure illness particularly for long run of chronic diseases, were cheaper than allopathic medicines, were easily available to purchase and were recommended by family members. Healing was not successful in past from allopathic and other types of medicines of majority of the patients who preferred to consume Ayurvedic medicines containing Neopicrorhiza scrophulariiflora. Further scientific studies and interventions are recommended for concerned health authorities and nursing practitioners of Nepal to test and validate the safety and effectiveness of the consumption of Ayurvedic medicines. &nbsp

    Consumers Caring Health with End Products (Ayurvedic Medicines) Containing Neopicrorhiza scrophulariiflora in Nepal

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    Neopicrorhiza scrophulariiflora (Pennell) D. Y. Hong is an endangered herbaceous medicinal plant found in subalpine and alpine zone of eastern Himalayas comprising Sikkim, Nepal, Bhutan and China. Rhizomes of Neopicrorhiza scrophulariiflora (hereinafter referred to as Neopicrorhiza) have medicinal properties and are highly traded in Nepal, India and China. Information on driving factors for demand of Neopicrorhiza from consumer perspective is unknown, knowledge of which is important because it can allow insights into future demand and sustainability of future trade. In this context, a survey was conducted among purchasers and consumers (patients) of end products (Ayurvedic medicines) containing Neopicrorhiza (n=513) in five different cities of Nepal from March to July 2017 using structured questionnaire to explore characteristics of consumers and consumption of end products of Neopicrorhiza. The utilization of Ayurvedic medicines containing Neopicrorhiza for treatment of health disorders of human is prevalent in Nepal. Men and women patients of diverse ages and with different socio-economic profiles were found to consume Ayurvedic medicines containing Neopicrorhiza to treat health disorders associated with different organ systems of body. The patients receiving Ayurvedic medicines containing Neopicrorhiza were children, adults and elders ranging from 1 to 98 years old (av. 37.6 years). Employed and unemployed, educated and illiterate consumers were found to consume Ayurvedic medicines containing Neopicrorhiza to treat their health disorders in Nepal. Patients receiving those medicines were from households having diverse annual cash income levels. The purchase and consumption of Ayurvedic medicine containing Neopicrorhiza was most often guided by a doctor’s prescription. Most of the respondents believed that the prices of those Ayurvedic medicines were fairer than other types of medicines. Similar studies are recommended in other countries like India and China where the Neopicrorhiza is exported from Nepal

    Demand, End-Uses, and Conservation of Alpine Medicinal Plant Neopicrorhiza scrophulariiflora (Pennell) D. Y. Hong in Central Himalaya

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    Neopicrorhiza scrophulariiflora (Pennell) D. Y. Hong of Scrophulariaceae family (hereinafter referred to as Neopicrorhiza) has medicinally important rhizomes with high levels of trade. What factors drive demand for Neopicrorhiza in Central Himalaya is unknown. In this context, a nationwide comprehensive survey was conducted from September 2016 to March 2017 to assess demand, end-uses, and conservation of dry Neopicrorhiza rhizomes in Nepal. A total of 2313 herbal products were surveyed for Neopicrorhiza as an ingredient in 38 retailer shops. Processing industries of Neopicrorhiza in Nepal were interviewed using structured questionnaire. There were 23 herbal industries manufacturing 45 types of ayurvedic medicines as end-products containing Neopicrorhiza. The volume and value of annual demand for dry rhizomes of Neopicrorhiza in Nepal were found as 6076 kg and NRs 8573236 (USD 83235.30), respectively, in 2015/016 with average 264.17 kg/industry and NRs 1410.87 (USD 13.69) per kg. The major uses of ayurvedic medicines containing Neopicrorhiza were to treat a number of disease categories: cardiovascular system/liver (17), cardiovascular system/blood (6), nervous system (6), dermatological system (4), musculoskeletal system (3), digestive system (2), respiratory system (2), genitourinal system (4), and others (1). Despite changing legal regulation, trade and consumption of Neopicrorhiza exist in Nepal. It can be concluded that domestic consumption is not the major cause of resource depletion of Neopicrorhiza in Nepal

    An Overview: Distribution, Production, and Diversity of Local Landraces of Buckwheat in Nepal

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    Buckwheat is a sixth staple food crop after rice, wheat, maize, finger millet, and barley in Nepal. It is considered as an alternate cereal and poor man’s crop, representing an important food supply in remote places of Himalayas. It is the best crop in higher altitude in terms of adaptation to different climatic variables and easily fitted to different cropping patterns due to short duration. It is cultivated on marginal land in 61 out of 75 districts of Nepal from some 60 m to 4500 m asl, especially hilly and mountain districts like Rukum, Rolpa, Jajarkot, Dolpa, Humla, Jumla, Kalikot, Kavre, Dolakha, and Okhaldhunga. Sweet buckwheat varieties are generally grown in midhill and Terai but Tartary buckwheat varieties are grown in higher altitude. There are altogether 19 local landraces of sweat buckwheat and 37 for Tartary buckwheat listed from Nepal. The largest producers are China, USA, and Russia and Japan is principal user of global buckwheat grown in the world. In Nepal, it is cultivated in 10510 ha area with production of 10355 t/yr and yield of 0.983 t/ha. It has also medicinal value used in different forms including all its parts so the demand of buckwheat is increasing

    Potential impact of climate change on the distribution of six invasive alien plants in Nepal

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    The biological invasions have been increasing at multiple spatial scales and the management of invasive alien species is becoming more challenging due to confounding effects of climate change on the distribution of those species. Identification of climatically suitable areas for invasive alien species and their range under future climate change scenarios are essential for long-term management planning of these species. Using occurrence data of six of the most problematic invasive alien plants (IAPs) of Nepal (Ageratum houstonianum Mill., Chromolaena odorata (L.) R.M. King & H. Rob., Hyptis suaveolens (L.) Poit., Lantana camara L., Mikania micrantha Kunth, and Parthenium hysterophorus L.), we have predicted their climatically suitable areas across the country under the current and two future climate change scenarios (RCP 4.5 scenarios for 2050 and 2070). We have developed an ensemble of eight different species distribution modelling approaches to predict the location of climatically suitable areas. Under the current climatic condition, P. hysterophorus had the highest suitable area (18% of the total country’s area) while it was the lowest for M. micrantha (12%). A predicted increase in the currently suitable areas ranges from 3% (M. micrantha) to 70% (A. houstonianum) with the mean value for all six species being 29% under the future climate change scenario for 2050. For four species (A. houstonianum, C. odorata, H. suaveolens and L. camara), additional areas at elevations higher than the current distribution will provide suitable habitat under the projected future climate. In conclusion, all six IAPs assessed are likely to invade additional areas in future due to climate change and these scenarios need to be considered while planning for IAPs management as well as climate change adaptation

    Climatic Trends in Different Bioclimatic Zones in the Chitwan Annapurna Landscape, Nepal

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    The Chitwan Annapurna Landscape (CHAL) is the central part of the Himalayas and covers all bioclimatic zones with major endemism of flora, unique agro-biodiversity, environmental, cultural and socio-economic importance. Not much is known about temperature and precipitation trends along the different bioclimatic zones nor how changes in these parameters might impact the whole natural process, including biodiversity and ecosystems, in the CHAL. Analysis of daily temperature and precipitation time series data (1970–2019) was carried out in seven bioclimatic zones extending from lowland Terai to the higher Himalayas. The non-parametric Mann-Kendall test was applied to determine the trends, which were quantified by Sen’s slope. Annual and decade interval average temperature, precipitation trends, and lapse rate were analyzed in each bioclimatic zone. In the seven bioclimatic zones, precipitation showed a mixed pattern of decreasing and increasing trends (four bioclimatic zones showed a decreasing and three bioclimatic zones an increasing trend). Precipitation did not show any particular trend at decade intervals but the pattern of rainfall decreases after 2000AD. The average annual temperature at different bioclimatic zones clearly indicates that temperature at higher elevations is increasing significantly more than at lower elevations. In lower tropical bioclimatic zone (LTBZ), upper tropical bioclimatic zone (UTBZ), lower subtropical bioclimatic zone (LSBZ), upper subtropical bioclimatic zone (USBZ), and temperate bioclimatic zone (TBZ), the average temperature increased by 0.022, 0.030, 0.036, 0.042 and 0.051 °C/year, respectively. The decade level temperature scenario revealed that the hottest decade was from 1999–2009 and average decade level increases of temperature at different bioclimatic zones ranges from 0.2 to 0.27 °C /decade. The average temperature and precipitation was found clearly different from one bioclimatic zone to other. This is the first time that bioclimatic zone level precipitation and temperature trends have been analyzed for the CHAL. The rate of additional temperature rise at higher altitudes compared to lower elevations meets the requirements to mitigate climate change in different bioclimatic zones in a different ways. This information would be fundamental to safeguarding vulnerable communities, ecosystem and relevant climate-sensitive sectors from the impact of climate change through formulation of sector-wise climate change adaptation strategies and improving the livelihood of rural communities
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