EVALUATION OF BIOACTIVE COMPONENTS AND ANTIOXIDANT ACTIVITY OF VERNONIA ELAEAGNIFOLIA DC. (ASTERACEAE) IN GLYCOPHYTIC AND HALOPHYTIC CONDITIONS

Objective: The investigate some of the antioxidant activities and bioactive potentials of Vernonia elaeagnifolia grown hydroponically in glycophytic and halophytic conditions. Methods: Plants were grown in Hoagland solution and subjected to (Sodium chloride (NaCl) treatments. Plants cultivated without salt stress served as the control. The phytochemical analysis was done with the help of Gas Chromatography-Mass Spectrometry (GC-MS) and antioxidants were analyzed following standard procedures using UV-Visible Spectrophotometer. Results: Significant changes were observed in the presence of antioxidants like superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (GPX), ascorbate peroxidase (APX), total polyphenols, proline and ascorbic acid. GPX and proline proved to be the major components in imparting salinity stress tolerance. The control showed the presence of 23 bioactive components while the treatment contained 19 components. Conclusion: The study thus provides information regarding the place of collection of the particular plant. Glycophytic conditions prove to be the best choice in terms of bioactive components and fatty acid contents. The investigations reveal that the plant contains several bioactive components and antioxidants, which prove it as a promising plant for developing potential drugs

Deteksi Kandungan Air Relatif pada Daun sebagai Acuan Induksi Pembungaan Jeruk Siam Jember

Penelitian bertujuan untuk : (1) Menentukan nilai optimal RWC untuk induksi pembungaan Jeruk Siam Jember berdasarkan gejala kelayuan visual sebagai respons tanaman terhadap pengeringan; (2) Menentukan nilai optimal Kadar Lengas Tanah pada saat pengeringan untuk induksi pembungaan; (3) Menganalisis dampak pengeringan terhadap pembungaan dan pembuahan Jeruk Siam Jember. Penelitian ini merupakan penelitian lapangan (action research) yang dilaksanakan di salah satu kebun jeruk siam milik petani di daerah sentra produksi. Pengambilan sampel dilakukan secara purposive sampling dengan kreteria umur tanaman sama, vigor tanaman identik, dan sudah berproduksi. Untuk mendapatkan nilai RWC dan Kadar Lengas Tanah yang optimal dilakukan dengan cara membagi lahan pertanaman menjadi lima petak percobaan. Masing-masing petak minimal terdapat 16 tanaman dan dipisahkan dengan batas parit sedalam 60 cm dan lebar 50 cm. Petak-petak percobaan tersebut selanjutnya diberi perlakuan pengeringan sebagai berikut: (1) Pengeringan selama dua minggu (P1); (2) Pengeringan selama tiga minggu (P2); (3) Pengeringan selama empat minggu (P3); (4) Pengeringan selama lima minggu (P4). Pengairan dilakukan dengan cara memompa air irigasi ke permukaan lahan sampai mencapai kapasitas lapang. Dengan cara demikian petak lain yang masih dalam perlakuan pengeringan tetap kering.. Data yang terkumpul dianalisis secara deskriptif statistik Hasil Penelitian menunjukkan bahwa perlakuan Pengeringan selama 3 minggu (P2 menunjukkan hasil yang terbaik dengan jumlah bunga jeruk paling banyak secara signifikan dibanding perlakuan lainnya

An analyst's take on the BPHZ theorem

We provide a self-contained formulation of the BPHZ theorem in the Euclidean context, which yields a systematic procedure to "renormalise" otherwise divergent integrals appearing in generalised convolutions of functions with a singularity of prescribed order at their origin. We hope that the formulation given in this article will appeal to an analytically minded audience and that it will help to clarify to what extent such renormalisations are arbitrary (or not). In particular, we do not assume any background whatsoever in quantum field theory and we stay away from any discussion of the physical context in which such problems typically arise.Comment: Accepted versio

Crab culture potential in southwestern Bangladesh: alternative to shrimp culture for climate change adaption

Outbreaks of disease, price increases, international competition and impact of climate change has setback shrimp culture in the coastal region of Bangladesh. In this changing environment, crab has emerged as a potential exportable commodity in the country. Farmers are transferring to crab farming as it is less susceptible to disease, resistant to adverse environmental conditions and has a good market price. This paper highlights the application of remote sensing and GIS for crab culture potential. The paper discusses the imminent capabilities of satellite imaging technology and Multi criteria evaluation (MCE) module in GIS environment for development of sustainable crab aquaculture consisted physical, environmental and socioeconomic data to evaluate coastal land based criteria for mud carb farming based on water quality, water availability, salinity, risks of flooding, soil types, topography, land use/land cover; infrastructure, inputs, seed sources, market and support services. All the layers with associated attribute data were digitally encoded in a GIS database to create thematic layers. The database was verified to remove the inconsistency if any. The expert opinions were combined into the model by assigning weights of relative importance to evaluate crab farming and land suitability was categorized as very suitable, moderate suitable, marginal suitable and currently not suitable by implementing the logical criteria. MCE identified a range of suitable land parcels with unique characteristics. The resultant map reveals that a considerable amount of land (28.33%) fell under very suitable category which is situated in the northwest and southwestern part of the area. On the other hand, majority of the land parcel (62.22%) fell within the moderately suitable group that is scattered throughout the area and approximately 9.45% of land was only marginally suitable for crab culture. However, there is no land parcel designated as unsuitable in the present study for crab culture. The suitability output is replicable within the study area and transferable to other areas for other cultured specie

Review of Context Specific and Safe Sanitation Technologies for Vulnerable Geomorphologic Areas in the Bengal Basin

Water and excreta related diseases such as diarrhoea and other respiratory problems remain a major health concern in Bangladesh and people in the Hard-to- Reach HtR areas i e vulnerable geomorphologic areas and slipping population from all sorts of development activities suffer more Much effort have already been undertaken to promote decentralized and sustainable context-specific sanitation facilities through increasing the capacity of the vulnerable community and creating their access to services However more activities and effort is needed to ensure the appropriate sanitation facilities for all mainly in the HtR areas Besides design of proper context-specific sanitation technologies safe human excreta disposal is also crucial for preventing the spread of infectious diseases as the thickness of surface impermeable clay and depth to groundwater table play vital role to select the distance between pit-latrine- the source of pathogen bacteria and shallow tubewell The study was undertaken to evaluate the efficiency of existing sanitation technologies in the geomorphologically variable HtR areas Five different HtR areas i e drought prone flood prone char sand bar coastal and haor swamp areas were selected for the survey The study reveals that context specific technologies and designs are required for the sustainability of sanitation services in the vulnerable area

Fry production, induced breeding practices and cost-profit analysis of the hatcheries of Rajshahi district in Bangladesh

This study was conducted on the 13 hatcheries of Rajshahi district from March to December 2013 to know about the fry production status, induced breeding practices and cost-profit status. Average fry production of Labeo rohita, 93.38±83.32 kg, Catla catla, 62.00±60.84 kg, Cirrhinus cirrhosus, 77.46±58.61 kg, L. calbasu, 14.20±14.60 kg, L. bata, 53.73±50.56 kg, L. gonia, 10.00±0 kg, Heteropneustes fossilis, 5.00±0 kg, Clarias batrachus, 20.00±0 kg, Hypophthalmichthys molitrix, 149.77±138.45 kg, Aristichthys nobilis, 104.54±148.11 kg, Ctenopharyngodon idella, 19.20±15.35 kg, Cyprinus carpio 108.08±77.39 kg and Barbonymus gonionotus, 23.10±14.04 kg were recorded in the surveyed hatcheries. Two types of hormone injections PG (pituitary gland) and HCG (Human chorionic gonadotropin) were used for induced breeding. The rate of 1st dose of injection of PG varied from 1 to 2 mg/kg and HCG from 100-150 IU/kg and the rate of 2nd dose of injection of PG varied between 5 and 8 mg/kg. The incubation period and hatching rate in different fish species varied from 10 to 72 hours and 55% to 80%, respectively. The average total cost, gross return and net profit of the hatcheries were 0.667±0.798, 1.152±1.636 and 0.485±0.846 million BDT respectively