Physical Sciences and Engineering

Impacts of sunspots on climate change

Sunspots are the coldest part of the Sun, and usually develop in pairs. The magnetic field in sunspots stores energy that is released in solar flares/CMEs. As a result, solar source activities usually occur in a cycle that mimics the 11-year sunspot cycle. The solar energy that drives the weather system, scientists naturally wondered whether they might connect climate changes with solar variations. The Sun is the primary source of our space weather.

The design and implementation of professional quality training system for oil workers in oil gathering and transferring enterprise

Oil gathering and transferring faces serious production safety problems because It has the meaning of the special industry characteristics, such as huge transfer station distribution, complex technological process, rich equipment, strict operating norms, potential risk more and dispersed. Company employees need excellent operation ability, strong safety awareness and risk handling capacity. Education and training is an important means to cultivate professional literacy skills.

Anticancer activity of various transition metal complexes: a review

This is a novel approach towards recovering from cancer disease with help of transition metal complexes. Uses of benzimidazole nucleus in plentiful categories of therapeutic agents such as anticancer, immunomodulators, hormone modulators, CNS stimulants as well as depressants, lipid level modulators, antidiabetics, etc. has made it an indispensable anchor for development of new therapeutic agents. Different substitutents of the benzimidazole nucleus have provided a wide spectrum of biological activities.

E-waste management and handling in India: Modeling of enablers (drivers) using an interpretive structural Modeling (ISM)

The aim of this article is to analyze the interaction of various enablers (drivers) in management and handling of e-waste in India, which paves the way for an efficient e-waste management either by effective recycling/reuse or through safe and secure disposal for sustainable development. After review of literature on e-waste management in India and other countries, major driving factors of e-waste management have been identified.

Impacts of sunspots on space weather and climate change

This paper addresses the Solar Actvity cause and effect of climate change and their various impacts. Earth’s Sunspots are the coldest part of the Sun and usually develop in pairs. The magnetic field in sunspots stores energy that is released in solar flares (SFs)/coronal mass ejections (CMEs). As a result, solar source activities usually occur in a cycle that mimics the 11-year sunspot cycle (SC). The solar energy that drives the weather system, scientists naturally wondered whether they might connect climate changes with solar variations.

Biobanking between ethical issue and providing treatments for people

Health is very important for humans, but sometimes treatment of disease becomes necessary. People have faced cancer before, in the last centuries, but these days cancer is more widespread. Because of this scientists are trying to find treatments to cure cancer. They need to study cancer cells and genes and do research so it will lead them to get lots of results. They therefore decided to build a biobank as store for human samples.

Performance evaluation of OFDM using MIMO-STTC for AWGN, RAYLEIGH, combined Rayleigh with AWGN and RICIAN channel for WIMAX and Bluetooth application

This paper discusses the OFDM in wireless communication. It includes Bit Error Rate and Symbol Error Rate verses ratio of bit energy to noise power spectral density (Eb/No) for different communication channels like AWGN channel, Rayleigh multipath Channel, combined Rayleigh multipath with AWGN channel and Rician Channel. The BER is 10-5, 10-4.5, 10-4 and 10-3 respectively for above communication channels at 30dB of SNR. This simulation is designed on MATLAB 9 version with 64-point FFT. The coding which is done in this paper is STTC for MIMO.

Some new proposed ridge parameters for the logistic regression model

The parameter estimation method that based on the minimum residual sum of squares is unsatisfactory in the presence of multicollinearity. In (1970) Hoerl and Kennard introduced an alternative estimation approach which is called the ridge regression (RR) estimator. In RR approach, ridge parameter plays an important role in the parameter estimation. Many researchers are suggested various methods for determining the ridge parameter for the RR approach and they generalized their methods to be applicable for the logistic ridge regression (LRR) model. Schaeffer et al.

Anti-inflammatory and antipyretic activity of curcuma longa l. collected from Uttarakhand

The plant extracts of Curcuma longa L., a perennial herb is a member of the Zingiberaceae (ginger) family. The methanolic extracts were investigated for its anti-inflammatory and antipyretic activities in animal models. The extract at different doses used showed good anti-inflammatory activity which has been done significantly, by the formation of paw edema induced by carrageenan model. Anti-inflammatory effects of plants were monitored every hour after carrageenan injection. These results were also comparable to Indomethacin, the reference drugs used in this study.