Life Sciences

Horizontal reactor for bio-char production

A reactor horizontally oriented was developed for bio-char for preparation from agricultural crop residues. The study was conducted at three levels of predefined temperature of 450, 500 and 550°C and residual time duration of 60, 120 and 180 min for optimization of temperature for obtaining the better quality of bio-char. The average recovery of bio-char prepared from pigeon-pea stalk was found to be 40.30%.

Potential use of cod isolated bacteria (gadus sp.) for treatment of saline residues and effluents

The legal responsibility of the destination and treatment of waste and industrial effluents is due to the generator, the appropriate treatment and installation for disposal have become a problem, since industrial production is increasingly generating complex waste. Residues with concentrations of salt and organic matter from the chemical, agri-food, leather and oil industries negatively affect conventional treatments, inhibiting enzymatic activity of microorganisms.

Assessment of metal contamination using single and integrated pollution indices in soil samples of Nashik District, India

Like water and air, soil is essential for growing vegetation and afforestation. Pollution of soil leads to contamination of vegetation and also of the nearby water reservoirs making it unhealthy for the human consumption. Heavy metal contamination of soil has been observed since years due to rapid industrialization, transportation and dumping of garbage at dumping sites. Pollution indices act as a powerful tool for assessing the extent of soil pollution. In this study, soil samples were collected from five different locations of Nashik district.

Understanding the production and sales determinants of haricot beans (phaseolus vulgaris L.) in the western highlands of Cameroon

Haricot beans (Phaseolus vulgaris l.) is among the food crop grown in Cameroon for food security due to its high nutritional value and income earning abilities. Moreover, it is also a tradable as its value chain extend from Cameroon to neighboring countries thus an important foreign exchange earner. However, most rural farmers have not exploited its full potential due to some supply side constraints such as production and agronomic shortcomings as well as demand side constraints such as suboptimal markets and sales conditions.

A gender analysis of vulnerability to climate-related food shortages in developing countries the case of cameroon

Climate change stimulates food shortages, especially in developing countries and sub Saharan Africa in particular, where agriculture is largely subsistence. That gender affects access to resources is a truism. However, how gender influences food shortages in climate-dependent, rain-fed agricultural systems is still largely unknown. We explore gender-related vulnerability to food shortages amongst 320 subsistence agricultural households in Cameroon, using both quantitative and qualitative methods.

Effect of different growth regulators on propagation of china rose (hibiscus rosa-sinensis) in subtropical zone of West Bengal

The present investigation was carried out to study the effect of different growth regulators on propagation of China rose (Hibiscus rosa-sinensis) in subtropical zone of West Bengal under natural ventilated polyhouse at Jaguli farm of Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, during 2014-15 and 2015-16. All parameters were significantly varied among the treatments during investigation (T1:IAA @1000ppm, T2:IAA@2000ppm, T3:IAA @3000ppm, T4:IBA @1000ppm, T5:IBA @2000ppm, T6:IBA @3000ppm, T7:NAA @1000ppm, T8:NAA @2000ppm, T9:NAA @3000ppm, T10:Rootex, T11:Control ).

Perception of the educational environment (ee) and common mental disorders (cmd) among medical students from a brazilian institution

The study aimed to verify the perception of the Educational Environment and the prevalence of common mental disorders (CMD) in medical students using Dundee Ready Educational Environment Measure (DREEM) and Self Reporting Questionnaire (SRQ-20), based on the hypothesis of a possible relationship between EE and CMD. The chi-square test was used to compare associations between items and prevalence ratio with respective 95% confidence interval. The Cox Regression was performed with the variables that presented p ≤ 0.20 in the bivariate analysis.

Effects of valeriana officinalis and passiflora sp on the behavior of wistar rats

Anxiety affects millions of adults worldwide. Valeriana officinalis (VO) contains several active compounds that may work as anxiolytic as well as Passiflora sp (PA). Due to this reason, the aim of this study is to evaluate the acute and chronic effects of Valeriana officinalis and Passiflora sp in the behavioral test of Wistar rats. Wistar rats were divided into seven groups (n= 5): G1: a control group that received saline solution; G2, G3, and G4 were treated respectively with 11, 22 and 44mg/kg of VO extract and G5, G6 and G7 with PA in the same doses used with VO.

Evaluation of the chronobiological profile and its relation with the nutritional state of night shift industrial workers

Chronobiology is responsible for studying the temporal properties of living matter, including all levels of organization, as well as the study of circadian rhythms, which are biological rhythms that oscillate around 24 hours. The objective of the present study was to reveal the chronobiological profile of night workers in an industry, as well as to detect the degree of influence of shift work conditions on sleep habits and nutritional status of workers, evidencing determining factors and attenuating expected complications.

Antioxidant activity of nutmeg bark (myristica fragrans houtt)

This study would be focused on nutmeg bark (Myristica fragrans Houtt) isolation to observe antioxidant activity of nutmeg bark (NB). The result of phytochemicals screening test showed that metabolite secondary compound of NB were terpenoid and tanin. Antioxidant activity from the n-hexane extract of nutmeg bark (n-HENB) was conducted using the DPPH method. Antioxidant activity of n-HENB with DPPH at concentration of 25, 50 and 100 ppm is obtained IC50 63.76 ppm. The results of column chromatography of n-HENB obtained 11 combined fraction, that were fraction of A to K.