60 research outputs found
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The Past and Future of Sociology in Nepal
Occasional Papers in Sociology and Anthropology - Volume 2, 199
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National Integration in Nepal
Occasional Papers in Sociology and Anthropology - Volume 3, 199
New Country Records and Annotated Checklist of the Dacine Fruit Flies (Diptera: Tephritidae: Dacini) of Nepal
Preliminary surveys for Dacine fruit flies were carried out in May 2015 and June 2017, with male lure (cue-lure, methyl eugenol, zingerone) traps maintained at 55 sites, (110â1,780 m elevation range), comprised mostly of Nepal Agricultural Research Council research stations. Twenty species were collected, including 11 new country occurrence and 2 new male lure association records. The most common species were fruit pests Bactrocera dorsalis (60.4% of all captures) and B. zonata (15.2%), and cucurbit pests Zeugodacus tau (9.5%) and Z. cucurbitae (8.7%). We present an annotated checklist of the 26 species now known to occur in Nepal, including 5 fruit and 6 cucurbit pests
Lobate Lac Scale (Paratachardina pseudolobata Kondo and Gullan) Invades from Oahu into Neighbor Islands: Statewide Survey in Hawaii
In Hawaii, lobate lac scale was rst detected on weeping banyan on Oahu in 2012. Since then, we have con rmed that lobate lac scale infests over 110 plant species in Hawaii, mainly ornamental and landscape plants in urban areas. The major impacts on host plants are dieback of twigs and branches, thinning of foliage, and death of the entire plant in some species. Given the frequency of in- terisland transportation of goods and people, it is likely that lobate lac scale spread to neighbor islands since its discovery on Oahu. We started this survey in January 2016 covering all major neighbor islands in Hawaii: Hawaii, Maui, Kauai, Molokai, and Lanai. Lobate lac scale was detected in Kona in May 2016, the rst con rmed incidence of this pest on a neighbor island outside of Oahu. Lobate lac scale was detected in Lihue in January 2017, the rst con rmed incidence of this pest on Kauai. With contribution from Hawaii Department of Agriculture, lobate lac scale was detected on Maui in May 2016. No lobate lac scale was detected on Molokai and Lanai in our survey. Inter-island shipping of nursery plants was considered the key route for the spread of lobate lac scale from Oahu to neighbor islands
Assessment of Pesticide Use in Major Vegetables From Farmers\u27 Perception and Knowledge in Dhading District, Nepal
A field study was carried out to assess the pesticide use status in major vegetable crops from farmers\u27 perception and knowledge in Dhading, Nepal in 2019. Field study was carried with 100 commercial farmer\u27s using semi-structure questionnaire by face to face interview. This study was analyzed by categorization of farmers into small holder (51) and large holder (49) groups on the basis of mean area of vegetable cultivation (6.48 ropani). The highest amount of pesticides is needed in tomato in both large holders and small holders according to the farmer\u27s experience. Among the study farmer\u27s, 41% of them spray the pesticides by making a cocktail or mixed method and 56% follow the waiting period of 3-5 days in both of the cases. A significant positive correlation was found at 5% level of significance between the knowledge and practice pattern of waiting period of the pesticides and negative correlation was found between the Personal Protective equipment score and health hazard score. Headache was the major health hazards faced by the farmers which was higher in small holders (66.7%) as compared to the large holders (46.9%). Mask was the most used PPE by the farmer\u27s i.e. by 83% in overall. Fourty three percent of the farmer\u27s throw the pesticide containers in secret place after using of it.The use of PPE was seen lower in small holders as compared to the large holders. This study reveals the necessities of suitable program and policies regarding the knowledge, safe handling and use of pesticide among the farmer\u27s level
Attraction of Lacewings (Neuroptera: Chrysopidae) to Methyl Eugenol in Asia
The attraction of Ankylopteryx exquisita (Nakahara) (Neuroptera: Chrysopidae) to the fruit fly male lure methyl eugenol was observed during fly surveys in Cambodia, Laos, Nepal, Taiwan, and Thailand. All of the 622 adults attracted to the lure were male
Assessment of pesticide use in major vegetables from farmersâ perception and knowledge in Dhading district, Nepal
A field study was carried out to assess the pesticide use status in major vegetable crops from farmersâ perception and knowledge in Dhading, Nepal in 2019. Field study was carried with 100 commercial farmerâs using semi-structure questionnaire by face to face interview. This study was analyzed by categorization of farmers into small holder (51) and large holder (49) groups on the basis of mean area of vegetable cultivation (6.48 ropani). The highest amount of pesticides is needed in tomato in both large holders and small holders according to the farmerâs experience. Among the study farmerâs, 41% of them spray the pesticides by making a cocktail or mixed method and 56% follow the waiting period of 3-5 days in both of the cases. A significant positive correlation was found at 5% level of significance between the knowledge and practice pattern of waiting period of the pesticides and negative correlation was found between the Personal Protective equipment score and health hazard score. Headache was the major health hazards faced by the farmers which was higher in small holders (66.7%) as compared to the large holders (46.9%). Mask was the most used PPE by the farmerâs i.e. by 83% in overall. Fourty three percent of the farmerâs throw the pesticide containers in secret place after using of it.The use of PPE was seen lower in small holders as compared to the large holders. This study reveals the necessities of suitable program and policies regarding the knowledge, safe handling and use of pesticide among the farmerâs level
Boron nitride nanotubes: Recent advances in their synthesis, functionalization, and applications
A comprehensive overview of current research progress on boron nitride nanotubes (BNNTs) is presented in this article. Particularly, recent advancements in controlled synthesis and large-scale production of BNNTs will first be summarized. While recent success in mass production of BNNTs has opened up new opportunities to implement the appealing properties in various applications, concerns about product purity and quality still remain. Secondly, we will summarize the progress in functionalization of BNNTs, which is the necessary step for their applications. Additionally, selected potential applications in structural composites and biomedicine will be highlighted
Evaluation of Phytochemical, Antioxidant and Antibacterial Activities of Selected Medicinal Plants
Medicinal plants are important reservoirs of bioactive compounds that need to be explored systematically. Because of their chemical diversity, natural products provide limitless possibilities for new drug discovery. This study aimed to investigate the biochemical properties of crude extracts from fifteen Nepalese medicinal plants. The total phenolic contents (TPC), total flavonoid contents (TFC), and antioxidant activity were evaluated through a colorimetric approach while the antibacterial activities were studied through the measurement of the zone of inhibition (ZoI) by agar well diffusion method along with minimum inhibitory concentrations (MIC) by broth dilution method. The methanolic extracts of Acacia catechu and Eupoterium adenophorum showed the highest TPC (55.21 ± 11.09 mg GAE/gm) and TFC (10.23 ± 1.07 mg QE/gm) among the studied plant extracts. Acacia catechu showed effective antioxidant properties with an IC50 value of 1.3 Όg/mL, followed by extracts of Myrica esculenta, Syzygium cumini, and Mangifera indica. Morus australis exhibited antibacterial activity against Klebsiella pneumoniae (ZoI: 25mm, MIC: 0.012 mg/mL), Staphylococcus aureus ATCC 25923 (ZoI: 22 mm, MIC: 0.012 mg/mL), Pseudomonas aeruginosa (ZoI; 20 mm, MIC: 0.05 mg/mL), and methicillin-resistant Staphylococcus aureus (MRSA) (ZoI: 19 mm, MIC: 0.19 mg/mL). Morus australis extract showed a broad-spectrum antibacterial activity, followed by Eclipta prostrata, and Hypericum cordifolium. Future study is recommended to explore secondary metabolites of those medicinal plants to uncover further clinical efficacy
Feeding, caregiving practices, and developmental delay among children under five in lowland Nepal: a community-based cross-sectional survey
Background: Nurturing care, including adequate nutrition, responsive caregiving and early learning, is critical to early childhood development. In Nepal, national surveys highlight inequity in feeding and caregiving practices for young children. Our objective was to describe infant and young child feeding (IYCF) and cognitive and socio-emotional caregiving practices among caregivers of children under five in Dhanusha district, Nepal, and to explore socio-demographic and economic factors associated with these practices. Methods: We did a cross-sectional analysis of a subset of data from the MIRA Dhanusha cluster randomised controlled trial, including mother-child dyads (N = 1360), sampled when children were median age 46 days and a follow-up survey of the same mother-child dyads (N = 1352) when children were median age 38 months. We used World Health Organization IYCF indicators and questions from the Multiple Indicator Cluster Survey-4 tool to obtain information on IYCF and cognitive and socio-emotional caregiving practices. Using multivariable logistic regression models, potential explanatory household, parental and child-level variables were tested to determine their independent associations with IYCF and caregiving indicators. Results: The prevalence of feeding indicators varied. IYCF indicators, including ever breastfed (99%), exclusive breastfeeding (24-hour recall) (89%), and vegetable/fruit consumption (69%) were common. Problem areas were early initiation of breastfeeding (16%), colostrum feeding (67%), no pre-lacteal feeding (53%), timely introduction of complementary feeding (56%), minimum dietary diversity (49%) and animal-source food consumption (23%). Amongst caregiving indicators, access to 3+ childrenâs books (7%), early stimulation and responsive caregiving (11%), and participation in early childhood education (27%) were of particular concern, while 64% had access to 2+ toys and 71% received adequate care. According to the Early Child Development Index score, only 38% of children were developmentally on track. Younger children from poor households, whose mothers were young, had not received antenatal visits and delivered at home were at higher risk of poor IYCF and caregiving practices. Conclusions: Suboptimal caregiving practices, inappropriate early breastfeeding practices, delayed introduction of complementary foods, inadequate dietary diversity and low animal-source food consumption are challenges in lowland Nepal. We call for urgent integrated nutrition and caregiving interventions, especially as interventions for child development are lacking in Nepal
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