The development of optical microscopes led to the discovery of cells as the fundamental units of life. It made us aware that microbes dominate the living world. However, optical microscopes have limitation as to the size of cell and cell organelles they can focus. This size limit is referred to as the...

Plant growth and development are greatly influenced by soil edaphic factor and microbial community present in the rhizosphere. Although some microorganisms are important, some can cause disease in plants and lead to the death of the plant. Trichoderma sp. is an important soil fungus which has the potential...

Salinity and pH stress have effect on bacterial growth, enzyme activity and cell biomass. Optimum salt concentration and pH were need for the normal growth of bacteria except for halophiles, acidophiles and alkaliphiles. Different concentration of salt (2.5, 5, 10 and 20%) and pH (5, 7, 9 and 11) were...

Fifteen isomers of cyclooctene systems calculated in ab initio reveal the potency of computational results as a sufficient approach to distinguish different isomers and their configurational and conformational isomers within the system. The optimized geometries obtained from the semi empirical calculations...

The quest for new eco-friendly energy resources dates back to three decades not because of the resources are being scarce but because of its capacity to mitigate the unfriendly environmental issues. The fossil fuel resources are formed over thousands of years of biochemical conversion, which is insufficient...

The concept of metal-oxide-semiconductor-field-effect-transistor (MOSFET) was proposed by Julius Edgar Lilienfeld and the electrical characterization and mathematical theory began since 1959 at Bell Telephone Laboratories. It has been a revolutionary invention since then and have led to the new generation...

The power quality concerns are augmenting day by day due to the growth of loading requirements. In this paper, we address these concerns while trying to provide the solutions. With the advancement of technology, the power quality concerns can be handled efficiently by flexible alternating current transmission...

Electrocardiography (ECG) is an important physiological signal that reflects the autonomic nervous system (ANS) activity. The correlation between ANS measures and sleepiness has been used to assess the drowsiness of a person from spectral analysis of heart rate variability (HRV). Power spectral analysis...

Ṭam Dil is a natural lake but reconstructed as fish pond at Saitual, Mizoram. The area around the lake enjoys a moderate climate owing to its tropical location. It receives an adequate amount of rainfall. It is also fed by small streams from surrounding catchment area. During the present investigation,...

The Imphal River is major river in Manipur, India, that connects Manipur River and Bay of Bengal. The seasonal variations of organic carbon in surface sediments and the major sources along the course of the river were studied. Sediment samples were collected from five sampling sites, namely Lamlong Thong...

The selected study area belongs to southwest part of Mizoram constituting north-east India. The whole region is in limelight due to its presence of considerable toxic element contamination in different water sources including neighboring states of Assam, Manipur, Tripura and also Bangladesh. Drinking...

The area around Champhai district contains exposed Barail Group of rocks (Oligocene) which comprises of buff-coloured sandstones with alternating beds of shale and siltstone. This study focussed on the provenance and tectonic setting of the Barail sandstones with the help of detailed petrographic studies...

The present study deals with the assessment of groundwater conditions both in terms of prospect and quality in the northern part of Mizoram, India. Advent of scientific techniques for identifying groundwater prospective areas and analyzing its quality enables us to save time and money. The study makes...

The Tut river basin covers an area of 846 km2 comprises of seven sub-watersheds namely Tuichar Lui, Dap Lui, Tlubing Lui, Chal Lui, Raiseh Lui, Telva Lui, Zawngek Lui. The drainage network of the sub watersheds was delineated and mapped using Survey of India toposheets and satellite imagery (IRS P6,...

The investigated landslide area is about 5.4 km north of Sairang village on Aizawl-Silchar road (NH-54). The length, breadth and height of slide are 110 m, 20 m and 70 m respectively. The dominant rock types exposed in the study area are sandstone, siltstone and shales and their admixtures in various...

Water is an essential commodity for survival and for the improvement of life quality. Although drinking water is a basic human right, many people do not have access to safe and adequate drinking water, and thus safe and reliable water supply is one of the most important things in rural areas today. The...

The main carbonate band in Upper Bhuban unit in Bhuban Formation of Surma Group in Mizoram is exposed in an N-S trending hill range about 5 km northeast of Muthi village in Aizawl district. Representative samples from the study area were prepared for rock thin sections and were also analyzed for their...

Determination of focal mechanism solution permits characterization of the earthquake source most effectively with the estimation of fault geometry. Fault geometry is described in terms of the orientation of the fault plane and the direction of slip along the plane. However, the body wave, surface wave...

The Precambrian terrain of the Sonapahar area is characterised by the presence of a thin, long, discontinuous band of quartz-sillimanite schist which hosts the massive sillimanite-corundum deposits. The quartz sillimanite schists are generally siliceous, SiO2 (60.59-76.82 wt %) and are characterized...

Economic value of a country greatly depends on the mineral reserves. India holds the 10th position of gold reserve in the world. It has a large amount of gold reserve in the Pre-Cambrian Dharwar Cratons of the Peninsular India. The study areas lies between latitudes 13°43’0” to 13°43’35”N and longitudes...

Gold is one of the most important economic minerals of our country and therefore, prospecting of gold is carried out in various parts of our country. The major prospecting of gold is carried out in Neo-Archean Dharwar Craton area. The investigated area of gold prospect is located Ajjanahalli, Sira town...

Language is a medium of communication for different cultures around the world. The communication between two cultures is blocked by language barrier. To solve the problem machine translation approach is widely used which is a software used to translate a text or speech from one language to another. It...

The propagation of elastic waves has many applications especially in geophysics and engineering. They are used in the detection of notches and faults in different types of materials such as in railway tracks, buried landmines, seismic activities, and exploration of valuable materials such as minerals,...

Ageratina adenophora (Asteraceae), commonly known as Crofton weed or sticky snakeroot, leaves are used for various health conditions in traditional medicines. They are used for treatment such as wound, itching, measles, skin diseases, uterine bleeding and also acts as antibacterial and astringent activity....

Ageratum conyzoides Linn. (Asteraceae), commonly known as billy-goat weed and white weed, is an important plant in the Indian traditional medicine. It is widely used for the treatment of dysentery, diarrhoea, injuries, cuts, snake bites, pneumonia, and as an insecticide and nematicide. This work was...

Ageratum conyzoides L., belonging to the family Asteraceae, is an annual herbaceous plant and is an invasive weed. It contains bioactive compounds that are reported to possess therapeutic properties. The species has been studied widely owing to its biological properties and its potential application...

Characterization of natural products based on the antioxidant activity gains tremendous interest in the past decade. In the current work, the antioxidant activity of the methanolic extract of Ageratina adenophora and Ageratum conyzoides leaves were determined. Both plants belong to the family Asteraceae...

Imperata cylindrica (L.) Räuschel (family Poaceae) is a perennial grass known in different traditional medicines in Southeast Asia for the treatment of a wide range of infectious diseases, particularly of bacterial infections. It is also used as an antifungal remedy in ringworms and other skin infections....

Qualitative and quantitative analysis of bioactive constituents of a plant is necessary for determination of potential pharmacological activity. In this study, the qualitative and quantitative analysis of the petroleum ether, chloroform and methanolic extract of Ageratina adenophora leaves were performed....

Laser-induced fluorescence spectra of gallstone samples from three different age group was analysed in the visible region. The gallstones were obtained from patients at Aizawl Civil Hospital, Mizoram, Northeast India, who had undergone surgery. Subjects included both adults and children patients so that...

Humans are constantly exposed to radiations, of which majority (87%) is from natural sources and a fraction (13%) is from man-made. Construction materials can contribute to natural background radiation in two ways, namely emission of gamma radiation, from primordial radionuclides like uranium, thorium...

Radon is a radioactive inert gas that is produced naturally from the decay of uranium to radium. As it is formed, it is released into air or water-containing pores between soil and rock particles. From soil and rock natural forces move it into the earth and it dissolves in groundwater. This is of great...

In this work holmium (Ho3+)-doped in silica glass was prepared by sol-gel technique which relies on the chemical reaction of liquid precursors to form the glass. TEOS: H2O:C2H5OH:HNO3 in the molar ratio 1:5.5:3.5:0.1 was used in the preparation with HoCl3.6H2O as the Ho3+ source. Porous silica gel was...

Radon is a highly radioactive, colourless, chemically unreactive and is produced from the natural decay of uranium. As it is being synthesized, it can be released into air or water-containing pores between soil and rock particles. Environmental radon is of great medical concern as it causes dangerous...

In this paper, we present the first principle calculations of the band structure of gallium nitride (GaN)-based semiconductor alloy of AlxGa1-xN for x=0.25, 0.50 and 0.75. Our calculations were performed using the density functional theory (DFT) with the generalized gradient approximation (GGA) and modified...

Measurement of natural radioactivity in soil samples collected from Aizawl district, Mizoram, was carried out using gamma spectrometer 5”X 4” NaI (Tl) detector. Soil samples were collected from 15 different sites located in various parts of Aizawl district. The activity concentrations were measured for...

The leukocyte counts of Sahiwal and Karan Fries (KF) crossbred cattle in response to acute thermal stress were investigated. Six numbers each of Sahiwal and KF were exposed to acute thermal stress at 40°C and 50% RH for 4 h in a psychromatic chamber located at Karnal, India during the period when Tmax/Tmin...

Plankton diversity of Tlawng River at Reiek kai in Mizoram, Northeast India, was investigated during 2017 to 2018. A total of 16 genera of phytoplankton belonging to 10 orders and 5 groups, and 7 genera of zooplanktons belonging to 7 orders and 5 groups were encountered. The phytoplankton group consisted...

There is no record on the prevalence of parasites of snakes in Mizoram. This study was undertaken in an attempt to identify common gastrointestinal parasites in the king cobra Ophiophagus hannah. In this preliminary survey, necropsy was performed on four individuals collected from different localities...

Species of Cassia (family Caesalpinaceae) are well known in India and other tropical countries for their medicinal values. This study evaluates the efficacy of the methanol extract of the leaves of Cassia javanica L. on paracetamol-induced liver damage in experimental rats. The animals were randomly...