Archives-December 

Agricultural Machinery is mostly used in off road i.e. in the field. In the field these machines perform different field operations like Ploughing, where the parts are subjected to stresses like tensile stress, compressive stress and shear stress thereby high wear due to heavy loads. The critical components in the agriculture machinery are either forged or fabricated out of medium carbon steel by unorganized sectors in India. As a result the users suffer on account of quality and short service life of these components. Recently Austempered Ductile Iron (ADI) has come up which has high strength, high wear resistance and less manufacturing cost. This material is now being widely used in production of critical agricultural machinery components for cost effectiveness uses. The paper described the Mechanical, Tribological properties of Austempered ductile iron and its application areas in agricultural machinery in India and abroad.

The aim of this project is investigating parameters that affect response of buried pipelines due to high-frequency seismic excitations. The main focus of the study is on reinforced concrete pipelines. Steel pipelines are also studied for comparison purposes. Two-dimensional finite element models are developed for dynamic analysis of pipelines loaded by seismic waves that propagate from the bedrock through the soil. The models describe both longitudinal and transverse cross-sections of pipelines. The interaction between pipelines and surrounding soils is accounted for, including a nonlinear behavior. The pipelines studied are assumed to be surrounded by frictional soils with dense, medium and loose stiffness. The effects of water mass, burial depth, soil layer thickness and non-uniform ground thickness caused by inclined bedrock are studied. It is demonstrated how two-dimensional plane strain models can be used for seismic analysis of pipelines with circular cross-sections.

Market efficiency depends on several things such as stability, confidence, and the flow of accessible information in any country. Others also caution that one must be aware of social or transactional costs which persons grapple with in cases involving political and market settlements. This has to do with “time”, “money”, and the “effort someone loses” in obtaining what he wants during a controversy in the market or political system. This also entails that people should fight less in order to reduce “friction” instead of contributing to this in public matters. Thus, according to Economists, other costs, including search and information costs, bargaining costs, keeping trade secrets, and policing and enforcement costs, can all potentially add to the cost of procuring something from another party. When elections are encountering numerous problems such as they produce risk and uncertainty, economic success may be greatly hampered. Market transactions could be affected. Elections are very important activities, which help nations to elect their prime leaders and parliamentarians. So whenever problems occur due to risk and uncertainties that are involved, the nation in question could fall into pandemonium, which could lead to anarchy. The purpose of the study was to determine how behavioural and social factors cause certain conditions to prevail as a result of conflicts which result from political elections. The use of comparative method enabled the author to combine theories of neuroscience, psychology, microeconomics tools to investigate conditions that occasion these instabilities in elections. Results show that certain behavioural characteristics emerge that illuminate on how leaders perceive themselves in power that negatively influences the political system. The conclusion is that behavioural economics concepts could be utilised to aid leaders in the Third World to desist from certain tendencies which prevent some good governance principles to function in these societies.

Energy as electromagnetic waves has primary and secondary effects. Certain shapes have affect the secondary effect either positively or negatively. BioGeometry is dealing with shapes which affect positively on energy. BioGeometry has principles of designs which used during design shapes. Fashion designs also have elements and principles which used during clothing designs. The human body has an open energy system that is in instant exchange on the subtle energy level just as it is in other levels. The first boundary between the body's energy system and environment is on the level of what we aware, as a bounday our clothes affect the energy exchange in both directions. The object of this research is to study how this boundary can affect the quality of energy exchange in order to bring harmony within the human subtle energy system and have positive effect on the vitality, emotional and mental levels. In this research fashion design sketches were drawn. Their energy determined qualitatively, one sketch selected and modified by BioGeometry design principles and then , ten creative fashion designs applied which principles and elements of both BioGeometry and fashion design are analyized. Further studies needed to complete full observation.

Electroplating sludge contains huge of Ni. Bioleaching is found to be the best method to remove heavy metals. But, the temperature play vital role. In the present study, the influence of temperatures on the removal of Ni from electroplating sludge was investigated using bacteria, Acidithiobacillus ferrooxidans. Results showed that the maximum of 90.5% Ni was removed from the sludge under the temperature maintained at 37 °C. It was found that the rate constants obtained for Ni bioleaching at 37 °C was high.

Intramedullary metastasis is extremely rare, this report describes a case of a women aged 52, with a metastatic breast cancer spreads to brain, spine (vertebrea) and bones under chemotherapy. The patient consults for weakness and troubles walking. MRI has shown intra medullary metastasis. Our goal through this report is to describe a new case of a breast cancer intra medullary metastasis knowing that the most common primitive tumor was related to lung cancer.

Peripartum cardiomyopathy is a rare disease accountable for giving a heart failure, which affects women in the last month of pregnancy or within the first 5 postpartum months. Early signs and symptoms of heart failure may not be seen, they are often considered as a normal part of pregnancy. When such symptoms and signs are not diagnosed or managed accurately, the consequences can be deleterious for the patient. We are going to briefly report a case of a 28-years-old woman, without any preexisting structural heart disease. The woman, after 3 months of vaginal delivery following normal pregnancy, was admitted for cardiogenic shock and distal lower Limb Necrosis secondary to peripartum cardiomyopathy. Such complications are uncommon, and the management was not easily accepted by the patient.

The chemical composition of the essential oils from the leaves of Acalypha hispida and Acalypha wilkesiana obtained by hydro distillation, were analyzed by Gas chromatography linked with Mass spectrometry. The main constituents of the essential oil from A. hispida were neral (11.04%), citral (12.87%), 6,10,14, trimethyl-2-pentadecanone (13.43%) and n-hexadecanoic acid (14.69%) while neral (30.66%) and citral (36.10%) which are monoterpenes were the major compounds in the oil of A. wilkesiana. The essential oils were tested for toxicity against brine shrimps larvae (Artemia salina) and showed LC50 values of 122.28µg/mL and 212µg/mL respectively while their activity against Anophelis gambiae reveal LC50 values of 125µg/mL and 83.33µg/mL respectively.

Security threats for the network services have been constantly increasing day by day. Distributed denial of service (DDoS) attack is one such kind of security threat which involves multiple systems generating a large amount of traffic towards a target machine and thereby making any service from that target machine or server unavailable to its clients. This threat by nature needs no control over the target system. Traditional methods of detecting DDoS attacks are mostly centralized in nature and highly disadvantageous. To overcome the disadvantages of those schemes, we propose a distributed methodology which involves installing the attack detectors at various parts of the network. Each router in the network will monitor the traffic flowing through it and if any anomaly in the traffic pattern is detected, it will raise an alarm to the nearby routers. The alarm propagates to all the routers through which the attack flows. By this way a tree like construct is made, which will have information about number of alarms raised and the path of the attack flow. If the construct shows any converging pattern then it is declared as DDoS attack.

 Colonialism has been conceived as a policy and practice of a strong power extending its control territorially over a weaker nation or people. So, a colonial territory is that political entity over which a stronger power exercises political control. From around the mid 19th to about the mid 20th century, what we know today as the Nigerian nation-state was a classical colonial territory. Without bothering to obtain their consent or allow indigenous centripetal leaders emerge, a stronger British power proceeded not only to extend its control over the territorial space, but railroad its diverse peoples and cultures into a commonwealth they neither understood nor bargained for. What followed was a struggle of one group against the other, or others, either to ingratiate itself with the colonizing power, or assert itself against its pretensions. When the later disposition failed or became forlorn, all groups settled more or less for the former. In the midst of this novel social setting, the various cultural norms of transparency and sublime modesty in public affairs began to give way for new social ethos of competition and graft. The emerging urban areas provided a perfect arena not only for the social contact of the various culture groups, but one that saw to the flowering of seeds of dichotomy and discrimination amongst the people. This paper seeks to situate the so-called “culture of corruption” in Nigeria within the colonial environment, and posits that the aphorism, ‘culture of corruption’ is actually alien to indigenous Nigerian peoples. It contends that if the current so-called ‘War against Corruption’ must be successfully pursued, then the sublime virtues of indigenous cultures need to be propagated and adopted as national ethos. Key words: Colonialism, Corruption, Nigeria, Indigenous Culture, National Ethos.