Journal of Agricultural Science and Food Research, 2018
Taranjebin Manna, a rare specific gum exudate from Fabaceae genera (Alhagi), screened for seleniu... more Taranjebin Manna, a rare specific gum exudate from Fabaceae genera (Alhagi), screened for selenium content.These were from some 90 samples complied into 14 bulk samples, representing three regional centres of Iran.Previous multidisciplinary studies had suggested selenium in an exudate chemical species context was the likelyactive component. The present study supports this contention and explains Taranjebin Manna's very high ethno-medical demand in Iran, and for its export. Several proposed biochemical hypotheses introduced here supportselenium as the active constituent in context of Manna's glycoprotein content. Research into Manna selenopolysaccharides and selenoglycoproteins is likely to reveal novel compounds of high medical interest. It is arguedTaranjebin Manna ethno-medical indication for neonatal hyper-bilirubinemia and thyroid issues is related to theseselenium compounds. The mean content of selenium was consistently very high, averaging 492 mg Se/100 g (dryweight of Manna) in the range of 482 to 513 mg Se/100 g. As a result, important traditional medical Manna efficacyis inferred from these findings. Possible reason for this hyper-accumulation was investigated by conducting a reviewof selenium geogenic factors and Investigation into Taranjebin Manna’s distribution. This concluded biogeochemicalfactors such as specific local geogenic conditions combined with specific geological terrains contributed to Mannaselenium mobility within specific Alhagi genera species, Apersarum boiss, A. bushe and A. mannifera DesfClimatic,biological and geogenic-geological factors all contribute to high content of selenium in Taranjebin.
Plant-based strategies could provide a key gateway to restoring heavy metal-polluted environments... more Plant-based strategies could provide a key gateway to restoring heavy metal-polluted environments. The present study was aimed to investigate the phytoremediation potential of Vigna radiata (L.) Wilczek in the heavy metal contaminated regions by oil industries at West Karun River, Iran. After soil sampling, the plants were grown in pots outdoors and irrigated by distilled water (0 mg/L Cd), Karun River water (0.04 mg/L Cd), and also by 25, 50, 75, and 100 mg/L of cadmium chloride solutions. Plants were harvested at the seedling and ripening stages and their Cadmium (Cd) content was determined. According to the results, the efficiency of V. radiata for bioaccumulation of Cd was very high at low concentrations of Cd in Karun River treatments (57% and 21% for shoot and roots, respectively), the highest Transfer Coefficient (TC) was (2.80 ± 0.5), Translocation Factor (TF) (2.78 ± 0.7), and Bioaccumulation Factor (BF) (3.83 ± 0.4). Although our findings shows that V. radiata does not possess a high potential of Cd phytoremediation at high concentrations (2.47% and 4.21% in shoot and roots at 50-100 mg/L Cd, respectively), it can provide a safe alternative based at minimum level of Cd concentration. Comparison of heavy metal contents in mung bean plants and soil, shows that there is an antagonistic relationship in Cd uptake and other accessible heavy metals such as Iron (Fe), Zinc (Zn), and Copper (Cu) from the soil at the study area. Thus the V. radiata could be considered as a potent candidate for bioremediation and growing food in Cd-polluted environments.
Protected areas have greatly improved the conservation of biological diversities worldwide. The m... more Protected areas have greatly improved the conservation of biological diversities worldwide. The main objective of this short review was to discuss the concept of protected areas, their categorization as well as their state and important roles they play in Ghana. Desk survey and Document Analysis under the qualitative research approach guided every facet of the review. The Interpretative Document Analysis was used in thoroughly analyzing the papers before the extensive review was written. The short review focuses on the state of three main protected areas namely wildlife sanctuaries, forest reserves and sacred grove systems in Ghana, their management and the roles they play in biodiversity conservation. The paper reveals that the protected areas must be enhanced and preserved to promote the conservation of biodiversity that pivots life. It argues that if protected areas are managed effectively with the support of local communities where many of these gazette sites are stepped, they would positively improve the ecology and enhance the conservation of biodiversity. Governments must ensure that strong legal frameworks are put in place to facilitate the smooth implementation of the principles for the establishment and management of protected areas.
The fading of radio waves scattered by dielectric turbulence is shown to be the result of two eff... more The fading of radio waves scattered by dielectric turbulence is shown to be the result of two effects. The first is time variation of the scattering eddies as seen in a coordinate system moving with the local wind velocity. The second is Doppler shifting produced by the convection of the scattering eddies by the mean wind and by the macro-eddies. In the troposphere, the scattering eddies lie in the inertial range of statistical turbulence theory. This makes it possible to find the envelope fading rate of the received scattered signal to within a constant of proportionality by using dimensionality and similarity arguments. The result is an expression for the fading rate as a function of carrier frequency which departs significantly from that found with ``scattering blob'' models.
Journal of Agricultural Science and Food Research, 2018
Taranjebin Manna, a rare specific gum exudate from Fabaceae genera (Alhagi), screened for seleniu... more Taranjebin Manna, a rare specific gum exudate from Fabaceae genera (Alhagi), screened for selenium content.These were from some 90 samples complied into 14 bulk samples, representing three regional centres of Iran.Previous multidisciplinary studies had suggested selenium in an exudate chemical species context was the likelyactive component. The present study supports this contention and explains Taranjebin Manna's very high ethno-medical demand in Iran, and for its export. Several proposed biochemical hypotheses introduced here supportselenium as the active constituent in context of Manna's glycoprotein content. Research into Manna selenopolysaccharides and selenoglycoproteins is likely to reveal novel compounds of high medical interest. It is arguedTaranjebin Manna ethno-medical indication for neonatal hyper-bilirubinemia and thyroid issues is related to theseselenium compounds. The mean content of selenium was consistently very high, averaging 492 mg Se/100 g (dryweight of Manna) in the range of 482 to 513 mg Se/100 g. As a result, important traditional medical Manna efficacyis inferred from these findings. Possible reason for this hyper-accumulation was investigated by conducting a reviewof selenium geogenic factors and Investigation into Taranjebin Manna’s distribution. This concluded biogeochemicalfactors such as specific local geogenic conditions combined with specific geological terrains contributed to Mannaselenium mobility within specific Alhagi genera species, Apersarum boiss, A. bushe and A. mannifera DesfClimatic,biological and geogenic-geological factors all contribute to high content of selenium in Taranjebin.
Plant-based strategies could provide a key gateway to restoring heavy metal-polluted environments... more Plant-based strategies could provide a key gateway to restoring heavy metal-polluted environments. The present study was aimed to investigate the phytoremediation potential of Vigna radiata (L.) Wilczek in the heavy metal contaminated regions by oil industries at West Karun River, Iran. After soil sampling, the plants were grown in pots outdoors and irrigated by distilled water (0 mg/L Cd), Karun River water (0.04 mg/L Cd), and also by 25, 50, 75, and 100 mg/L of cadmium chloride solutions. Plants were harvested at the seedling and ripening stages and their Cadmium (Cd) content was determined. According to the results, the efficiency of V. radiata for bioaccumulation of Cd was very high at low concentrations of Cd in Karun River treatments (57% and 21% for shoot and roots, respectively), the highest Transfer Coefficient (TC) was (2.80 ± 0.5), Translocation Factor (TF) (2.78 ± 0.7), and Bioaccumulation Factor (BF) (3.83 ± 0.4). Although our findings shows that V. radiata does not possess a high potential of Cd phytoremediation at high concentrations (2.47% and 4.21% in shoot and roots at 50-100 mg/L Cd, respectively), it can provide a safe alternative based at minimum level of Cd concentration. Comparison of heavy metal contents in mung bean plants and soil, shows that there is an antagonistic relationship in Cd uptake and other accessible heavy metals such as Iron (Fe), Zinc (Zn), and Copper (Cu) from the soil at the study area. Thus the V. radiata could be considered as a potent candidate for bioremediation and growing food in Cd-polluted environments.
Protected areas have greatly improved the conservation of biological diversities worldwide. The m... more Protected areas have greatly improved the conservation of biological diversities worldwide. The main objective of this short review was to discuss the concept of protected areas, their categorization as well as their state and important roles they play in Ghana. Desk survey and Document Analysis under the qualitative research approach guided every facet of the review. The Interpretative Document Analysis was used in thoroughly analyzing the papers before the extensive review was written. The short review focuses on the state of three main protected areas namely wildlife sanctuaries, forest reserves and sacred grove systems in Ghana, their management and the roles they play in biodiversity conservation. The paper reveals that the protected areas must be enhanced and preserved to promote the conservation of biodiversity that pivots life. It argues that if protected areas are managed effectively with the support of local communities where many of these gazette sites are stepped, they would positively improve the ecology and enhance the conservation of biodiversity. Governments must ensure that strong legal frameworks are put in place to facilitate the smooth implementation of the principles for the establishment and management of protected areas.
The fading of radio waves scattered by dielectric turbulence is shown to be the result of two eff... more The fading of radio waves scattered by dielectric turbulence is shown to be the result of two effects. The first is time variation of the scattering eddies as seen in a coordinate system moving with the local wind velocity. The second is Doppler shifting produced by the convection of the scattering eddies by the mean wind and by the macro-eddies. In the troposphere, the scattering eddies lie in the inertial range of statistical turbulence theory. This makes it possible to find the envelope fading rate of the received scattered signal to within a constant of proportionality by using dimensionality and similarity arguments. The result is an expression for the fading rate as a function of carrier frequency which departs significantly from that found with ``scattering blob'' models.
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