Informatics Publishing Limited

M. M. Ghaisas ¹, Surbhi Sharma ², G. P. Ganu ², R. P. Limaye ³

Affiliations
1 Indira College of Pharmacy, Tathwade, Pune 411 033, IN
2 Padmashree Dr. D.Y. Patil Institute of Pharmaceutical Sciences and Research, Dept. of Pharmacology, Pimpri, Pune-18 (Maharashtra), IN
3 BVDU Medical College and Hospital, Sangli, IN

Abstract

In the present study, the antiulcer activity of hydroalcoholic extract of ischolar_mains of Colebrookea oppositifolia Sm. (CO) was evaluated in ethanol and swim stress induced peptic ulcer models. In both the models, various parameters like ulcer index, percentage protection, gastric wall mucus, catalase, reduced glutathione (GSH), lipid peroxidation (LPO) and superoxide dismutase (SOD) were estimated. CO significantly reduced the ulcer index and increased the gastric wall mucus in both the models. CO showed significant antioxidant activity as indicated by significant decrease in LPO and increase in catalase, GSH and SOD levels in stomach tissue homogenate. The results suggest that hydroalcoholic extract of ischolar_mains of Colebrookea oppositifolia possess antiulcer activity due to its mucoprotective action and antioxidant potential.

Keywords

Antiulcer, Colebrookea oppositifolia, Antioxidant.

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Bina Rani , Upma Singh , Ravi Sharma , Ayushi Gupta , Nidhi Gauba Dhawan , Ajit Kumar Sharma , Surbhi Sharma , Raaz K. Maheshwari

Abstract

The Prosopis cineraria ( L) Druce is an important tree (Khejri - a local name in Rajasthan)for the Thar Desert wi th hard climatic adaptation and one of the lifeline in desert habitat as mentioned in ancient literature. This is a species representing all five F viz., Forest, Fiber, Fuel, Fodder and Food. This tree is also mythological important in local communities. High value of this species recognized as a State symbol (state tree of Rajasthan). Prosopis cineraria (L.) Druce is a tree endemic to hot deserts of India, belonging to the family Leguminosae. Pods locally called "Sangri" are considered as dry fruit of desert and are one of the main ingredients of quintessential Rajasthani dish - The Panchkuta. In the present article, we have attempted to review different characteristics of the pods, to understand its health benefits. Various phytoconstituents like tannins ( gallic acid), steroids (stigmasterol, campesterol, sitosterol, etc.), Flavone derivatives (prosogerin A, B, C, D, and E), alkaloids (spicigerine, prosophylline), etc. have been isolated from the sangri pods .As this plant is found in water stress (or defi cient area) so antioxidant potential of pods has also been discussed. Prosopis cineraria (L) Druce is one of the highly valued plant in the Indigenous System of Medicine. P. cineraria pods provide protein, iron, vitamins A and C and other micro minerals Unripe pods are also nutritious and are used to prepare curries and pickles. Its bark is said to be a potent drug for several ailments such as leprosy, dysentery, bronchitis, asthma, leucoderma, piles, muscular tremors, asthma, rheumatism and inflammations. Pharmacological activities like analgesic, antipyretic, antihyperglycemic, antioxidant, antihypercholesterolemic, antitumor, nootropic anthelmintic, antibacterial, antifungal, anti viral and anticancer activities have been reported from different plant extracts. In view of its medicinal importance, the present review is focused to delineate its chemical constitution and therapeutic potentiality, precisely.

Keywords

Vernacular Names, Cytotoxic Principle, Dry Pods, Ailments, Minerals, Carbohydrates, Amino Acids, N-Free Extract, Saponification Value.

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Surbhi Sharma ¹, Rajesh Khanna ¹

Affiliations
1 Department of Electronics and Communication Engineering, Thapar University, Patiala, IN

Abstract

LDPC codes (Low Density Parity Check Codes) have already proved its efficacy while showing its performance near to the Shannon limit. Channel coding schemes are spectrally inefficient as using an unfiltered binary data stream to modulate an RF carrier that will produce an RF spectrum of considerable bandwidth. Techniques have been developed to improve this bandwidth inefficiency or spectral efficiency, and ease detection. GMSK or Gaussian-filtered Minimum Shift Keying uses a Gaussian Filter of an appropriate bandwidth so as to make system spectrally efficient. A Nakagami model provides a better explanation to less and more severe conditions than the Rayleigh and Rician model and provide a better fit to the mobile communication channel data. In this paper we have demonstrated the performance of Low Density Parity Check codes with GMSK modulation (BT product=0.25) technique in Nakagami fading channel. In results it is shown that average bit error rate decreases as the 'm' parameter increases (Less fading).

Keywords

Channel Codes, LDPC, Density Evaluation, GMSK, Nakagami Fading.

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Kanika Ralhan ¹, Surbhi Sharma ¹

Affiliations
1 Thapar University, Patiala, IN

Abstract

Multi-user Multiple Input Multiple Output (MU-MIMO) broadcast channel (BC) deployed with multiple transmit antennas at the base station (BS) and multiple receive antennas at each user is considered. The channel state information (CSI) from each user is quantized at the user side and the CSI at the transmitter (CSIT) required to obtain the throughput for the system is obtained in terms of the feedback bits only. The main objective is to reduce the feedback load. Transmitter architecture is proposed based on the zero-forcing beam forming (ZFBF) semi-orthogonal user selection (SUS) algorithm. In the proposed system, a two-stage feedback scheme is used along with the SUS scheduling algorithm so as to minimize the feedback load. The Maximum expected SINR combiner (MESC) is exploited so that only a limited number of users convey their feedback. These methods efficiently eliminate users from transmission in feedback and scheduling process, resulting in optimum use of scarce resources. The simulation results bring us to a conclusion that SUS user selection method gives significant reduction in feedback bits and the required effective throughput is achieved.

Keywords

Multi-User MIMO, Channel State Information, SUS User Selection, MESC, Throughput.

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Garima ¹, Aarti Bansal ¹, Surbhi Sharma ¹

Affiliations
1 Department of Electronics and Communication Engineering, Thapar University, Patiala – 147004, Punjab, IN

Abstract

Objectives: To present an overview on interfacing of MATLAB and commercial electromagnetic software packages (such as CST microwave studio). Methods/Statistical Analysis: This type of interfacing requires a scripting language interface termed as VBA script. An example for the design of an inset microstrip patch antenna is demonstrated in this paper using VBA. The controlling of CST microwave studio is done using MATLAB which calls microstrip patch antenna design along with its performance parameters such as S₁₁ parameter, VSWR, power requirement, radiation pattern, return losses etc. Findings: The interface created between CST and MATLAB worked well and antenna parameters can be called in MATLAB to operate on them. Improvements: Further optimization algorithm can be performed on this in order to get optimized real time performance of antenna.

Keywords

CST Microwave Studio (MWS), MATLAB, Microstrip Patch Antenna, PSO, VBA

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Surbhi Sharma ¹, Yudhvir Singh ¹

Affiliations
1 Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur - 176 062, IN

Abstract

The extent of genetic diversity plays an important role in varietal improvement programme of a particular crop. An experiment was conducted to study genetic divergence in 25 genotypes of cauliflower and data was recorded for 17 quantitative characters. On the basis of D² statistics, the genotypes were grouped into three clusters. Based on inter and intra-cluster distances, maximum intra-cluster distance was observed in Cluster I, indicating that the genotypes included in this cluster were genetically diverse. Further, inter-cluster distances revealed maximum values between Clusters I and II, followed by Clusters I and III and, clusters II and III. On the basis of cluster means, Cluster I was observed to be important for earliness and yield characters suggesting the scope of improvement for these traits through the use of genotypes included in this cluster. On the other hand, for morphological and quality characters, Cluster II was observed to be important. Hence, genotypes from diverse clusters with high mean values for different characters present the best choice for further exploitation in cauliflower improvement programme.

Keywords

Cauliflower, Genetic Diversity, Genotypes, Improvement, Yield Traits.

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