scholarly journals Lead, Cadmium, Zinc, and Copper Bioavailability in the Soil-Plant-Animal System in a Polluted Area

2010 ◽  
Vol 10 ◽  
pp. 273-285 ◽  
Author(s):  
Violina R. Angelova ◽  
Radka V. Ivanova ◽  
Jivko M. Todorov ◽  
Krasimir I. Ivanov
Keyword(s):  
Comparative Research ◽  
Research Study ◽  
Cd Contamination ◽  
Animal System ◽  
Mobile Forms ◽  
Metal Levels ◽  
Zn And Cu In ◽  
Different Levels ◽  
Selective Character ◽  
Cadmium Zinc

A comparative research study on the bioavailability of Pb, Cd, Zn, and Cu in the soil-plant-animal-system was carried out. The connection between the total quantity and the mobile forms of Pb, Cd, Zn, and Cu in soils with different levels of contamination; the transition of these metals into rapeseed; and their assimilation by rabbits fed with a food that consisted mainly of rapeseed was studied. It was established that the absorption of heavy metals by the rapeseed definitely has a selective character, as the affinity towards Zn is most strongly expressed. The accumulation of Pb, Cd, Zn, and Cu in the organs of the rapeseed occurs in the following order: inflorescences > leaves > stems. A direct connection between the quantity of the mobile forms and their accumulation in the plants was not found. The environmental contamination has a significant effect on heavy metal levels and distribution, as the largest quantity of all four elements is accumulated in the kidneys and liver. A well-expressed impact of the level of Cd contamination on the absorption of essential trace metals (Zn and Cu) and their accumulation into some of the organs of the animals was found.

scholarly journals A Comparative Analytical Study Of Shukra Dosha With Semen Analysis

2021 ◽  
Vol 9 (02) ◽  
Author(s):  
Shivanand F Kawane
Keyword(s):  
Comparative Research ◽  
Analytical Study ◽  
Research Study ◽  
Semen Analysis ◽  
Medical Science ◽  
Modern Science ◽  
Point Of View ◽  
Laboratory Examination ◽  
Different Types ◽  
Clinical Conditions

As we know Shukra dhatu is a most essential end product of the rest of all 6 dhatus of sharira. So, an analytical comparative research study has been made on infertility(bandhatva) patients. In this study, we explain tenets of shukra dhatu and different types of shukra doshas according to Acharya Charaka and Sushruta. According to doshas 8 types of Shukra doshas explaind by acharya and 9 types of semen abnormality by modern science. An attempt has been made to correlate these shukra doshas with an abnormality of semen according to modern medical science, on the basis of clinical features, physical appearance, and laboratory examination of semen. For the study 20 patient suffering from any kind of infertility has been selected from O.P.D. of Shalya Tantra department of Arogyashala rugnalaya, Nashik. On observation, the result showed out of 20 patients , 10 patients suffering from vatapittaj, 6 from shukra kshaya, 2 from vataj and 2 from pittaj shukra dosha according to ayurvedic point of view. Simultaneously we correlate it with different clinical conditions of semen and we found Out of 20 patients, 8 suffering from Oligoasthenospermia, 6 from Oligospermia, 2 from Asthenozoospermia, 2 from Tetratazospermia, 2 from Infective semen.  

scholarly journals Content of heavy metals in Haplic Chernozem under conditions of agrogenesis

2020 ◽  
Vol 169 ◽  
pp. 01024
Author(s):  
Anna Medvedeva ◽  
Olga Buryukova ◽  
Alexey Kucherenko ◽  
Yaroslav Ilchenko ◽  
Victor Chaplygin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Winter Wheat ◽  
Total Content ◽  
Background Level ◽  
Resource Saving ◽  
Agricultural Technologies ◽  
Long Term Study ◽  
Mobile Forms ◽  
Zn And Cu In ◽  
The Impact

The paper presents the results of a long-term study on the content and distribution of heavy metals in Haplic Chernozem of agrocenoses in southern zone of Rostov Region. The impact of various agricultural technologies traditional (using moldboard ploughing) and resource-saving (minimum and No-till) on accumulation and mobility of Pb, Zn, Cu in Haplic Chernozem in winter wheat cultivation is considered. The total content of Pb, Zn, Cu in the winter wheat areas corresponds to the background level and does not exceed permissible concentrations. Low mobility of elements (Pb 2.0-3.0%; Zn and Cu up to 1.0% as a percentage of their total forms) is a regional soil feature. In addition, the low availability of Zn and Cu in soils is due to their removal with the crops in the absence of micronutrient fertilizer replenishment. The significant role of soil organic matter in the accumulation of both total and mobile forms of heavy metals in soil has been confirmed. The intensity of the cultivation methods used has a significant effect on the total content of Zn, Cu and on the mobility of Pb, Zn, Cu in Haplic Chernozem.

scholarly journals P.094 Spinal dural repair: a Canadian questionnaire

2017 ◽  
Vol 44 (S2) ◽  
pp. S37-S37 ◽  
Author(s):  
K Reddy ◽  
S Almenawar ◽  
M Aref ◽  
CT Oitment
Keyword(s):  
Nerve Root ◽  
Spinal Surgery ◽  
Comparative Research ◽  
Research Study ◽  
Response Rate ◽  
Bed Rest ◽  
Optimal Management ◽  
Dural Tear ◽  
Dural Repair ◽  
Dural Tears

Background: Iatrogenic dural tear a complication of spinal surgery with significant morbidity and cost to the healthcare system. The optimal management is unclear, and therefore we aimed to survey current practices among Canadian practitioners. Methods: A questionnaire was administered to members of the Canadian Neurological Surgeon’s Society designed to explore methods of closure of iatrogenic durotomy. Results: Spinal surgeons were surveyed with a 55% response rate (n=91). For pinhole sized tears there is a trend toward sealant fixation(36.7%). Medium and large sized tears are predominantly closed with sutures and sealant(67% and 80%, respectively). Anterior tears are managed using sealant alone(48%). Posterior tears are treated with a combination of sutures and sealant(73.8%). Nerve root tears are treated with either sealant alone(50%). Most respondents recommended bed rest for at least 24 hours in the setting of medium(73.2%) and large(89.1%) dural tears. Conclusions: This study elucidates the areas of uncertainty with regard to iatrogenic dural tear management. There is disagreement regarding management of anterior and nerve root tears, pin-hole sized tears in any location of the spine, and whether patients should be admitted to hospital or on bed-rest following a pin-hole sized dural tear. There is a need for a robust comparative research study of dural repair strategies.

Distribution of Trace Metals in Vertebrate and Invertebrate Species from Ubeji Creek, Southern Nigeria

2014 ◽  
Vol 1 (1) ◽  
pp. 16-24
Author(s):  
G.C.C Ndinwa ◽  
M Peretomode ◽  
T Asiagbe
Keyword(s):  
Trace Metals ◽  
Clarias Gariepinus ◽  
Whole Body ◽  
Aquatic Life ◽  
Invertebrate Species ◽  
Metal Levels ◽  
Lead Zinc ◽  
Arsenic Copper ◽  
Cadmium Zinc ◽  
Construction Works

Trace metals content in water, fishes (Tilapia mariae, Clarias gariepinus), earthworm (Libydrius violaceous) and sediment were determined from Ubeji River using Atomic Absorption Spectrophotometer (AAS). Metals determined were lead, cadmium, zinc, mercury, arsenic, copper and Iron. The results obtained revealed that all the metals were detected. Also, there were variations in metal levels in the samples. Highest Zn level was obtained in all the samples analysed (0.284ppm and 0.284ppm in water, 24.0mg/kg in Clarias gariepinus, 28.8mg/kg in Tilapia mariae, 1.16mg/kg in earthworm and 0.64mg/kg in sediment). The concentrations of trace metals obtained in this study are found to be dangerous. The metal levels in water from Ubeji River are higher than the WHO/FEPA standards for water quality. The concentrations of lead, zinc and copper obtained in the whole body of fishes exceeded the WHO/FEPA set standards for aquatic life. The presence of trace metals found in the sample from Ubeji River is attributed to the proximity of petroleum activity, construction works and other allied companies.

Effects of Age and Level of Work Experience on Occurrence of Accidents

1995 ◽  
Vol 80 (3) ◽  
pp. 931-940 ◽  
Author(s):  
Jean-Marie Cellier ◽  
Hélène Eyrolle ◽  
Annick Bertrand
Keyword(s):  
Work Experience ◽  
Research Study ◽  
Age Groups ◽  
Food Sector ◽  
Two Factors ◽  
Different Levels

Results of a research study on the effects of age and work experience and their interaction on the occurrence of accidents in an agro-food sector are described. Three different levels of experience and six age groups were examined. Age and work experience significantly affected frequency and seriousness of accidents. A study of these two factors jointly shows that considerably higher rates of frequency and seriousness are found for the youngest and oldest subjects with low work experience. These analyses enable us to put forward several hypotheses concerning the mechanisms in the occurrence of accidents.

scholarly journals Geochemistry of waters and bottom sediments in landslide lakes in Babiogórski National Park

Mineralogia ◽  
2011 ◽  
Vol 42 (1) ◽  
pp. 63-72
Author(s):  
Dariusz Sala ◽  
Grzegorz Rzepa
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Physicochemical Parameters ◽  
National Park ◽  
Geochemical Processes ◽  
Chemical Analyses ◽  
Industrial Emissions ◽  
Cd Contamination ◽  
Metal Levels ◽  
High Level

Geochemistry of waters and bottom sediments in landslide lakes in Babiogórski National Park The aim of this work was to assess the contamination of the landslide lakes located within Babiogórski National Park. For this purpose, samples of water and bottom sediment from 12 lakes were collected. Chemical analyses of the waters (including main cation and anion concentrations, trace-metal levels and selected physicochemical parameters) and of the sediments (including heavy metals) were performed. The waters are acidic to neutral and are characterized by low mineralization. Concentrations of trace elements are commonly low. Elevated levels of Fe, Mn and Al are probably related to natural geochemical processes. The sediments are strongly contaminated by Cd, whereas other trace metals levels are at their hydrogeochemical background. The high level of Cd contamination is most probably related to long-range industrial emissions.

scholarly journals Diagnosis of brain death by orbital Doppler ultrasound: a comparative research study

2013 ◽  
Author(s):  
Oktay Algin ◽  
Gokhan Gundogdu ◽  
Seval Izdes ◽  
Guven Evren Keles ◽  
Ihsan Solaroglu
Keyword(s):  
Brain Death ◽  
Doppler Ultrasound ◽  
Comparative Research ◽  
Research Study
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