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Comparative analysis of <i>Cassandra</i> TRIMs in three Brassicaceae genomes
Sampath, Perumal,Yang, Tae-Jin Cambridge University Press 2014 Plant genetic resources Vol.12 No.1
<P>Terminal-repeat retrotransposon in miniature (TRIM) elements are a miniature form of retrotransposons and play an important role in genome organization. The <I>Cassandra</I> TRIM family has been identified in over 50 plant species, including both monocots and dicots. <I>Cassandra</I> elements carry an independently transcribed 5S RNA sequence in their terminal repeat regions, which is unique compared with other TRIM families. Although the existence of <I>Cassandra</I> elements has been documented in many plants, much work remains to characterize <I>Cassandra</I> family members and elucidate their distribution. In this study, we comparatively analysed the <I>Cassandra</I> family members in the <I>Brassica oleracea</I>, <I>B. rapa</I> and <I>Arabidopsis thaliana</I> genomes. A total of 602, 451 and 173 members, of which 130, 60 and 9 were relatively intact, were identified from the <I>B. oleracea</I>, <I>B. rapa</I> and <I>A. thaliana</I> genomes, respectively. Most of the <I>Cassandra</I> elements (1120/1226) were found in intergenic spaces, but 106 elements were inserted in genic regions such as introns, exons and untranslated regions. Our comparative analysis of the <I>Cassandra</I> family members in <I>A. thaliana</I>, <I>B. rapa</I> and <I>B. oleracea</I> reveals that some <I>Cassandra</I> elements have been commonly retained during the last 20 million years in three species and some elements have been uniquely evolved in <I>Brassica</I> species. This study promotes our understanding of the role and utility of <I>Cassandra</I> elements in the evolution of the Brassicaceae family.</P>
Sampath M B,Prakash C,Senthil Kumar M 한국섬유공학회 2019 Fibers and polymers Vol.20 No.3
In this study an attempt has been made to study the influence of laundry performance on the various comfortcharacteristics of Moisture Management Finished (MMF) knitted fabrics. The influence of laundering on comfortcharacteristics of MMF microdenier polyester knitted fabrics was studied to find out the durability of the MMF and itscapability to withstand at least 20 home laundry cycles. In order to study this effect, the MMF knitted fabrics were subjected to different laundering cycles. It was observed that 10 wash and 20 wash fabrics exhibited a superior performance thereby fulfilling an important parameter of permanent wash proofness.
Sampath, K.,Sathiyaraj, S.,Jayabalakrishnan, C. Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.2
The ruthenium(II) ferrocenyl heterocyclic thiosemicarbazone complexes of the type $[RuCl(CO)(EPh_3)]_2L$ (where E = P/As; L = binucleating monobasic tridendate thiosemicarbazone ligand) have been investigated. Strutural features were determined by analytical and spectral techniques. Binding of these complexes with CT-DNA by absorption spectral study indicates that the ruthenium(II) complexes form adducts with DNA and has intrinsic binding constant in the range of $3.3{\times}10^4-1.2{\times}10^5M^{-1}$. The complexes exhibit a remarkable DNA cleavage activity with CT-DNA in the presence of hydrogen oxide and the cleavage activity depends on dosage.
Sampath, Umesh,Kim, Dae-Gil,Kim, Hyunjin,Song, Minho IEEE 2018 IEEE SENSORS JOURNAL Vol.18 No.9
<P>We report a fiber-optic sensor based on Fresnel reflection for real-time monitoring of cryogenic temperatures. Coating highly thermo-sensitive polymers on the facet of optical fiber, we obtain average measurement sensitivity 0.04 dB/K in temperature range of 90–298 K. We show theoretical background of polymer’s thermo-optic response and the experimental results performed with two kinds of coating polymers, epoxy resin, and polymethyl methacrylate. The experimental results confirm the suitability for cryogenic temperature sensing applications, such as superconducting lines and magnets with simple and cost-effective sensor structure and signal processing.</P>
Sampath Suranjan Salins,Shiva Kumar,S. V. Kota Reddy 대한설비공학회 2020 International Journal Of Air-Conditioning and Refr Vol.28 No.1
Desiccant cooling mechanism is one of the alternate methods to control the humidity of air and temperature, compared to the conventional vapor compression method of air conditioning. Desiccant cooling doesn’t use harmful chemicals which effect the ozone layer and it saves lots of energy. Summer air condition system can use this technology since it removes the latent heat load from the room effectively and this process is economical. Selection of the appropriate liquid desiccant and packing material is very vital to obtain maximum dehumidification. This paper focuses on the different desiccants and packings used by different researchers to enhance the dehumidification. Simple and hybrid systems are also reviewed, and their comparison are presented based on the construction and dehumidification performance.
Novel Antioxidants and Atherosclerosis
Sampath Parthasarathy,Nalini Santanam 한국식품영양과학회 2004 한국식품영양과학회 학술대회발표집 Vol.55 No.-
Coronary heart disease (CHD) has been the number one killer in western society for a long time, and CHD in most instances is due to atherosclerosis. One of the earliest events in atherogenesis is the intracellular accumulation of lipids, particularly cholesterol esters, in the aortic intima. The lipids presumably came from the uptake of plasma lipoproteins, particularly from LDL. These foam cells were identified as being predominantly as macrophages. Currently, it is believed that oxidation of low density lipoprotein (LDL) might contribute to the generation of foam cells. An outcome of the oxidation hypothesis is that the consumption of antioxidants would be beneficial. In this study, Boldine, an alkaloid of Peumus boldus was tested for their antioxidant potency both in, in vitro oxidation system and in mouse models. Boldine decreased the ex-vivo oxidation of Low-density lipoprotein (LDL). In vivo studies were performed to study the effect of these compounds on the atherosclerotic lesion formation in LDL r-/- mice. Three groups of LDL r-/- mice (N=12 each) were fed an atherogenic diet. Group 1 was given vehicle and group 2 and 3 were given 1 and 5 mg of Boldine/day in addition to the atherogenic diet. The results indicated that there was a decrease in lesion formation reaching a 40% reduction due to Boldine compared to controls. The in vivo tolerance of Boldine in humans (has been used as an herbal medicine in other diseases) should make it an attractive alternative to vitamin E.
Cluster-based Routing Method for Wireless Sensor Networks with Heterogeneous Node Types
Sampath Priyankara,Kazuhiko Kinoshita,Hideki Tode,Koso Murakami 한국멀티미디어학회 2009 한국멀티미디어학회 국제학술대회 Vol.2009 No.-
With advances of low-cost hardware such as CMOS cameras and microphones, multimedia sensor networking technologies have developed very rapidly in recent years. Maintaining higher alive node ratio and wider coverage area is indispensable for ubiquitous retrieval of multimedia contents such as video and audio streams, still images and scalar sensor data from the environment. To achieve those requirements, sensor network systems are gradually moving into heterogeneous designs, incorporating a variety of sensor nodes. In this paper, we propose a new cluster-based routing method for wireless sensor networks with heterogeneous node types. It selects cluster heads considering not only transmission power and residual energy of each node but also those of its adjacent nodes. Simulation results show that the proposed method significantly increases network lifetime and also maintains high coverage rate in comparison with existing methods.
Sampath Natarajan,강린우,김진광,Tae-Kyun Jung,Thanh Thi Ngoc Doan,Ho-Phuong-Thuy Ngo,홍명기,Seunghwan Kim,Viet Pham Tan,Seok Joon Ahn,이상희,한예선,안예진 한국분자세포생물학회 2012 Molecules and cells Vol.33 No.1
Xanthomonas oryzae pv. oryzae (Xoo) is a plant bacterial pathogen that causes bacterial blight (BB) disease, resulting in serious production losses of rice. The crystal structure of malonyl CoA-acyl carrier protein transacylase (XoMCAT), encoded by the gene fabD (Xoo0880) from Xoo, was determined at 2.3 Å resolution in complex with N-cyclohexyl-2-aminoethansulfonic acid. Malonyl CoA-acyl carrier protein transacylase transfers malonyl group from malonyl CoA to acyl carrier protein (ACP). The transacylation step is essential in fatty acid synthesis. Based on the rationale, XoMCAT has been considered as a target for antibacterial agents against BB. Protein-protein interaction between XoMCAT and ACP was also extensively investigated using computational docking, and the proposed model revealed that ACP bound to the cleft between two XoMCAT subdomains.
Ensemble Modulation Pattern based Paddy Crop Assist for Atmospheric Data
Sampath Kumar, S.,Manjunatha Reddy, B.N.,Nataraju, M. International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.9
Classification and analysis are improved factors for the realtime automation system. In the field of agriculture, the cultivation of different paddy crop depends on the atmosphere and the soil nature. We need to analyze the moisture level in the area to predict the type of paddy that can be cultivated. For this process, Ensemble Modulation Pattern system and Block Probability Neural Network based classification models are used to analyze the moisture and temperature of land area. The dataset consists of the collections of moisture and temperature at various data samples for a land. The Ensemble Modulation Pattern based feature analysis method, the extract of the moisture and temperature in various day patterns are analyzed and framed as the pattern for given dataset. Then from that, an improved neural network architecture based on the block probability analysis are used to classify the data pattern to predict the class of paddy crop according to the features of dataset. From that classification result, the measurement of data represents the type of paddy according to the weather condition and other features. This type of classification model assists where to plant the crop and also prevents the damage to crop due to the excess of water or excess of temperature. The result analysis presents the comparison result of proposed work with the other state-of-art methods of data classification.