Archives-J 

Azolla is very known biofertilizer for rice cultivation it can enrich soil N2 content and for the soil fertility. In view of this, an invitro study was carried out on morphometric studies on Anabaena azollae present in two species of Azolla fern (A.microphylla, and A. fulicolides). The selected Azolla species were grown in standard medium prepared with garden soil, cow dung, super phosphate and its combinations in separate containers. The matured Azolla cultures were observed for its growth profile viz. number of leaflets per plant and fresh & dry weight of whole plant on 15d and 21d. Followed by, the morphometric study on symbiotic cyanobacteria present in the leaf cavities of two species of Azolla was determined through observing average number of cyanobaterial filament in the leaf cavity of azolla, length of each cyanobacterial filament, number of vegetative cells and number & position of heterocyst in each cyanobacterial filament.

Lipid composition of the brain oils of bull and hen found in Nigeria was determined by gas chromatography. SFA level ranged from 6.11 to 6.54 % of total fatty acids. MUFA was close to each other in the samples and composed the third largest fraction of 8.89 to 9.86 %. The n-6 PUFA constituted the second largest group of 35.4 to 39.0 % whereas the n-3 PUFA of 46.0 to 48.1 % formed the largest group. Most concentrated SFA was lignoceric acid, highest MUFA was erucic acid, highest n-6 was arachidonic acid whilst docosahexaenoic acid (DHA) was the highest n-3 PUFA. Cholesterol was the only sterol detected, 589 to 874 mg/100 g. The highest phospholipid was phosphatidylcholine having a range of 29.1 (60.4 %) to 20.2 (59.6 %) mg/100 g. 100 g bull brain would provide 8.56 g of DHA, 100 g hen brain would provide 9.47 g of DHA.

Cadmium Sulphide (CdS) thin films of different thickness are prepared by the chemical bath deposition technique on well cleaned glass substrates at various temperatures. The thicknesses of the deposited films have been determined by gravimetry. The structural characterization is carried out by X-ray diffraction. The study confirms the polycrystalline nature of films with hexagonal structure. The structural parameters such as grain size, dislocation density, strain and lattice parameters have been evaluated. The composition of various constituents in CdS films have been determined by energy dispersive X-ray analysis. The optical properties like optical transmittance, band gap and refractive index has been studied in detail for the CdS films of various thicknesses which would be a promising material for the photo-voltaic applications. This paper deals with structural and optical properties of chemically deposited CdS films at the temperatures 600 C and 700 C  with the composition of CdCl2 in aqueous solution 0.2 gm and 0.3 gm.

The present study aims to investigate rainfed rice farming systems and the main constraints on production in Kibombo. The results after analyzing the contribution of two factors (CP I and CP II) and the total variance observed between the analyzed variables based on the original characteristics is estimated with a contribution of 98.74%. CP I explains 60.13% of the variance and is characterized mainly by: areas, number of bags and yield is the positive factor. Compared to CP II, it explains a variance of (38.60%) is determined negatively and positively by the number of deaths at birth and the age at weaning respectively positive. The spatial distribution shows that agricultures with 60.13% of the main component in production are favorable to the area and number of bags, and the second component represents 38.60% for farmers who are better in terms of acreage, number of bags and yield. The income of farmers in the rural commune of Kibombo after the harvest allows them to meet their social needs.

Concrete is the most extensively used construction material. Despite the rising cost of production, the demand for concrete is increasing. The negative consequences of the increasing demand for concrete include depletion of aggregate deposits, environmental degradation and ecological imbalance. Recently river sand mining was banned. To this effect, the work is carried out to study the prospects of the uses of manufactured sand (M-sand) in our country. In this present experimental investigation M20 and M25 concrete is used as control mix with M-sand in various percentages. Strength of M-sand concrete is compared with normal concrete. The results show that the significant improvement in the strength of the M-sand concrete. 

An experiment was conducted in August 2011 using air cooler type BF3 size 2500 m3/ h have motor works with two speeds. Researcher add another water pump to work with the first water pump in order to increase the amount of water drop over pads. Water consumption (liters / hour), the internal temperature°C, external temperature°C ,the temperature of the cooling water in the bottom of the cooler°C, electrical consumption (A), and cooling efficiency were studied in this experiment. The result showed that add another water pump has highly significant effect on cooling efficiency (F1, 19 =15.98, p value = 0.0018). Furthermore, add another water pump has highly significant effect on inside temperature (19, 1=58.37, P value < 0.0001) which improve the performance of air cooler. In addition, there was a highly significant effect on water consumptions (19, 1= 26.16, P value =0.0003), which is normally add another water pump mean more water will consume that because allow to the pad to become more saturation as well as don’t left any dry spot in the pad. The only sources of the air that inter to the building will be through the wet pad, and any dry spot in the pad will allow to the hot air to pass through it that will add more heat to building. Just the time play an important role on water temperate there was highly significant effect (19, 4= 50.25, P value = <.0001), because temperature afternoon is higher than in the morning or at night that will causes increase water temperature of the air cooler.

The FTIR spectrum shows that the carbonyl group of L-Leucine, L-Glutamic acid and L-Tyrosine interact with 2-aminopydine through N—H?O hydrogen bonding. 2-aminopyridine protonated and L-amino acids deprotonated during the reaction, resulting in the formation of 2-aminopyridiniumleucinate, bis2-aminopyridinium glutamate and 2-aminopyridiniumtyrosinate co-crystals. The UV-Vis spectrum shows that the molecules are closely packed and undergoes n??^* transition in all these three co-crystal and the cut off wavelength value indicate that bis2-aminopyridinium glutamate and 2-aminopyridiniumtyrosinate co-crystals have Non-linear optical property compared to 2-aminopyridiniumleucinate crystals. The cell parameter calculated from powder XRD pattern.

This study was designed to investigate the teachers’ attitude towards teamwork and its relationship with their research output at university level. It was focused on the teachers’ attitude towards teamwork and research output. Depending upon the nature of the problem descriptive survey design and correlation research design were used. A sample of the teachers at University level was surveyed through questionnaire. The first part of questionnaire was adapted from the research work of Kirkman & Shapiro in 2001 and Ulloa & Adam in 2004 and second part of this questionnaire was adapted from the research work of De Witte and Rogge in 2010. Total 304 male and female teachers were taken as sample of the study. Convenience sampling technique was carried out and the findings of this study indicate that there was a positive relationship among individualism, trust in co-worker, skill utilization, team personality, resistance towards teamwork, communication and coordination due to high level of trust, communication and coordination among the teachers in a teamwork but due to lack of trust and work avoidance attitude among them teachers show a negative correlation between teachers’ attitude towards teamwork and their research output.

The action research was conducted to determine the effect of case-based teaching-learning on students’ analytical thinking experimented with the final year Bachelor of Business Administration (BBA) students, Gedu College of Business Studies, Royal University of Bhutan. The study was conducted between July and December, the Autumn Semester of 2020. There were 38 students in total who studied HRM307 Industrial Relations as their fifth major module for Human Resource Management group. Based on the survey conducted towards the end of the completion of module where 33 students participated, their opinion that the ‘case-based teaching-learning have improved’ analytical thinking stands at the mean value of 3.4 (out of 5). This indicates that the case-based teaching-learning intervention effect their analytical skills. The comparative study on the scores of assignment was also conducted. Although the mean score of the first assignment and the second assignment does not show significant difference, the average score of the first assignment and the third assignment has a statistically significant difference. This was confirmed through the paired sample t-test. Thus, it can be concluded that when the case intervention was prolonged over a period of time, it positively impacted students’ enhancement of analytical thinking.

The paper looks at some issues in vocabulary teaching in L2 situation. Such issues include learner’s vocabulary size for both productive and receptive use of L2, basic vocabulary skills, techniques and procedures for vocabulary teaching.