Recent Research in Science and Technology最新文献

{"title":"Insecticidal activity of Wild Spikenard (Hyptis suaveolens L. Poit) on Adult Mortality and Female Oviposition of Groundnut Bruchid, Caryedon serratus Olivier on stored Groundnut Seeds and Tamarind pods","authors":"C. Oaya, A. M. Malgwi, I. Mohammed","doi":"10.25081/RRST.2017.9.3369","DOIUrl":"https://doi.org/10.25081/RRST.2017.9.3369","url":null,"abstract":"An investigation was conducted to estimate the insecticidal deterrence of wild Spikenard (Hyptis suaveolens L. Poit) on adult mortality and female oviposition of groundnut bruchid, Caryedon serratus Olivier on stored groundnut seeds and tamarind pods. Data were taken on mean percentage mortality and mean number of eggs laid (female oviposition). The highest mean percentage mortality for both stored produces were reported in actellic dust and 12.00g levels of H. suaveolens whole powders (93.50; 91.75 and 92.25; 91.25) while the least were obtained in the controls (4.75; 3.25). Moreover, 12.00g levels of H. suaveolens whole powder and actellic dust recorded the least mean number of eggs laid (female oviposition) (18.00; 17.00 and 19.25; 18.00) while the highest was reported in the controls (318.25; 305.50) respectively. There was no significant difference between the effects of rates of synthetic insecticides and 12.00g level of H. suaveolens whole powder in all the parameters measured.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"67 1","pages":"25-29"},"PeriodicalIF":0.0,"publicationDate":"2017-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88411700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heavy Metal tolerant Non endosymbiont PGPR’s; Psuedomonas spp. and Bacillus spp. associated with the roots of evergreen shrubs Casuarinas equisetifolia","authors":"K. V. Kumar, C. Jaiprakash, M. Chander, R. Reesu, Anwesh Maile, Chandan Lall","doi":"10.19071/RRST.2016.V8.3086","DOIUrl":"https://doi.org/10.19071/RRST.2016.V8.3086","url":null,"abstract":"There is a lack in research related to association of non-endosymbiont bacteria with Casuarina sp. PGPR non-endosymbiont bacteria like pseudomonas sp. and Bacillus sp. are long associated with their properties of heavy metal accumulation and plant growth promoting activity. The present study focuses on heavy metal tolerant and accumulation potential of non endosymbiont PGPR isolated from rhizosphere of Casuarina equisetifolia . The plant growth promoting properties was studied by pot culture studies on fast growing Indian moth bean Vigna aconitifolia . In the pot culture study three bacterial isolates were found to be increasing the root and shoot length by Pseudomonas sp. RS-1 (7.4±0.64 and 21.7±1.42), Bacillus sp. RS-2 (6.5±0.93 21.2±2.09) and and Bacillus sp. RS-3 (6.4±0.73 19.1±1.83) respectively. The maximum tolerance concentration of Pseudomonas sp. RS-1 shows 200 mg/L towards Cr (VI), Pb (II) 150 mg/L whereas tolerance for Cd (II), and Zn (II) were 100mg/L. Maximum % removal was shown by Bacillus sp. RS-3 towards Cr, Pb and Zn (42.51, 26.35 and 26.65 % respectively), Pseudomonas sp. RS-1 towards Cd (36.52 %). As Frankia ecological interaction between non-endosymbiont bacteria and phytoremediation ability of Casuarina sp. is not fully understood. Further study in this area may lead to better prospect in application of Casuarina as a phytoremediation agent.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"15 1","pages":"30-35"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81708381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perception and preference of umami-taste-containing foods based on olfaction and (or) gustation","authors":"Rachida Belloute, M. Diouri","doi":"10.19071/RRST.2016.V8.3028","DOIUrl":"https://doi.org/10.19071/RRST.2016.V8.3028","url":null,"abstract":"This study aimed at testing the ability to perceive and identify smells and tastes and determining the role of olfaction in the perception and preference of foods containing umami taste in both sexes. It covered a sample of 28 naive subjects aged 12-65 years, men and women, chosen at random, belonging mainly to the city of Meknes (Morocco). Our study consisted of three experimental tests: One test of smelling and two tests of tasting, with or without a disturbing odor. The tests were carried out according to the IMANOR standard ISO 6658: 2007. Qadid (air-dried salted meat) was similar to plain meat with respect to perception and preference. This food would not be able to represent the umami taste. The presence of a strong lemon smell reduced cheese identification by gustation. This food would contribute to flavor more by its taste than by its smell. Women were more effective in detecting onion by gustation as well as by olfaction; whereas men were more efficient in detecting cheese by both routes. However, it seems that the impact of olfaction on choice is not gender dependent.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"4 1","pages":"24-29"},"PeriodicalIF":0.0,"publicationDate":"2016-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82662007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insertion/deletion markers for assessing the genetic variation and the spatial genetic structure of Tunisian Brachypodium hybridum populations","authors":"M. Neji, F. Geuna, Sean P. Gordon, W. Taamalli, J. Vogel, Y. Ibrahim, A. Smaoui, C. Abdelly, M. Gandour","doi":"10.19071/RRST.2016.V8.2954","DOIUrl":"https://doi.org/10.19071/RRST.2016.V8.2954","url":null,"abstract":"The wild annual grass Brachypodium hybridum, an allotetraploid species derived from the natural hybridization between the diploid species B. distachyon (2n=10) and B. stacei (2n=20). This trio of species has been suggested as a model system for polyploidy. Brachypodium hybridum is the most widespread Brachypodium species in Tunisia. Natural diversity can be used as a powerful tool to uncover gene function and, in the case of B. hybridum , to understand the functional consequences of polyploidy. Here, we examined the spatial distribution of genetic variation of B. hybridum across its entire range in Tunisia and tested underlying factors that shaped its genetic variation. Population genetic analyses were conducted on 145 individuals from 9 populations using 8 InDel markers. Results indicated a relatively high level of within-population genetic diversity (He = 0.35) and limited among-population differentiation (F PT = 0.20) for this predominantly self-pollinating grass. UPGMA cluster analyses, PCoA and Bayesian clustering supported the demarcation of the populations into 3 groups that were not correlated with location or altitude, suggesting a loose genetic affinity of B. hybridum populations in relation to their geographical locations, and no obvious genetic structure among populations across the study area. This pattern was associated with a considerable amount of an asymmetric gene flow between populations. Overall, the obtained results suggest that the long-distance seed-dispersal is the most important factor in shaping the spatial genetic structure of B. hybridum in Tunisia. They also provide key guidelines for on-going and future work including breeding programs and genome-wide association studies.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"1 1","pages":"14-23"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87705501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of H+ ion on microstructure and electrochemical behavior passive film formed on stainless steel-304 in low concentrated sulfuric acids","authors":"R. Natarajan","doi":"10.19071/RRST.2016.V8.2914","DOIUrl":"https://doi.org/10.19071/RRST.2016.V8.2914","url":null,"abstract":"The investigation focused toward microstructure and electrochemical changes caused by proton on a passive film formed on the surface of stainless steel-304 in lower concentrated sulfuric acid solutions (exclusively 0.5, 1.0, 2.0, and 5.0 N concentrations). Dissociation rate of the proton in the acid was reduced due to increasing of acid concentration from 0.5 to 5.0 N, which causes anodic shift at open circuit potential region and cathodic shift in different passivation potential regions. Proton enhances different electrochemical behaviors such as activation, primary, secondary passive, and transpassive behaviors, which was concluded by increasing of current value in these regions. AC impedance parameters such as double layer capacitance ( C dl ), charge transfer resistance ( R ct ) are compared with selective polarization parameters. Microstructure and chemical entities present in the passive film were examined through scanning electron microscopy and X-ray photoelectron spectroscopic techniques. The role of H+ and SO42- ion on metal dissolution and passive film formation have been discussed.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"8 1","pages":"6-13"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85538572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HABITAT CHARACTERIZATION AND DIVERSITY ASSESSMENT OF MOSQUITOES FROM SELECTED COASTAL DISTRICTS OF KERALA, INDIA.","authors":"Sajith Uliyathel, Rathy Mc, C. C. Harilal","doi":"10.19071/RRST.2016.V8.2942","DOIUrl":"https://doi.org/10.19071/RRST.2016.V8.2942","url":null,"abstract":"Abstract Vectors and host species in relation to environmental conditions are ensued in the effective transmission of many infectious diseases. Among the diverse array of vectors, mosquitoes stand at the top, spreading many devastating diseases to human beings such as Malaria, Dengue Fever, Chikungunya and Filariasis. Habitat heterogeneity and their physico-chemical attributes have vital influence on the diversity and distribution of such vectors. A better understanding of the mosquito diversity in relation to environmental characteristics thus assumes utmost significance in disease surveillance and control. Ponnani and Chavakkad municipalities of Malappuram and Thrissur Districts respectively, are known to be endemic to many mosquito borne diseases. Repeated reports of such diseases, especially filariasis, in recent years suggest the necessity to assess the diversity of mosquito vectors and the habitats they preferred. Species composition, relative abundance and distribution status of mosquitoes were evaluated after sampling of larvae from heterogeneous habitats in pre and post monsoon seasons. Mosquito larvae collected were reared to adults in the laboratory. Species level identification of all the collected mosquitoes were carried out following Christophers (1933) and Barraud (1934). Analysis of the water samples bearing larvae were also carried out for the assessment of physico-chemical characteristics. Larval density was higher in Chavakkad municipal area than Ponnani in both the seasons. Diversity of mosquito larvae during premonsoon season was higher (4 genera, 9 species) in Ponnani municipal area and lower (5 genera, 8 species) in Chavakkad. Similarly diversity during post monsoon season was higher (4 genera, 8 species) in Chavakkad municipal area and lower (4 genera, 7 species) in Ponnani.In both the seasons Culex was the most predominant genus with higher species diversity followed by Anopheles .  The results have evidenced the existence of diverse groups of mosquito species with respect to seasons, which can act as potential carriers of so many infectious diseases such as Dengue, Chikungunya, Malaria and Filariasis in these coastal environments. Key Words: mosquitoes, diversity, Culex, Sewerage.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"5 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83671272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chlorella vulgaris and Chlorella pyrenoidosa live cells appear to be promising sustainable biofertilizer to grow rice, lettuce, cucumber and eggplant in the UAE soils.","authors":"A. Elhafiz, A. S. Gaur, N. Osman, T. Lakshmi","doi":"10.19071/RRST.2015.V7.2919","DOIUrl":"https://doi.org/10.19071/RRST.2015.V7.2919","url":null,"abstract":"The culture conditions of Chlorella vulgaris and Chlorella pyrenoidosa under laboratory and field conditions have been standardized. Chlorella pyrenoidosa could survive under field conditions at 40o C in 1L cultures bottles, while C. vulgaris could not survive at this temperature. When the salt tolerance of the two species was tested against three levels of salt, C. vulgaris could survive in 1.0% NaCl with density of 87 X 10 4 /ml cells while C. pyrenoidosa did not survive at this level of salt.  The total chlorophyll content (chlorophyll a and chlorophyll b) of C. pyrenoidosa is higher (1780mg/g fresh weight) than that of C. vulgaris (12360 mg/ g fresh weight) for the same mass of cells. When chlorophyll rich, salt tolerant C. pyrenoidosa live cells (11.8x10 4 /ml) were used as biofertilizer, rice seedlings had enhanced root system, cucumber seeds had quicker germination, 1 month old seedlingshad green leaves with 2 times higher chlorophyll content than the respective control seedlings. Enrichment of salt affected soils with these green algae Chlorella vulgaris and Chlorella pyrenoidosa may be a possible option to grow these cropsin UAE.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"220 1","pages":"14-21"},"PeriodicalIF":0.0,"publicationDate":"2015-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89120753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Eigenvalue Study on the Variant of Murali-Lakshmanan-Chua Circuit","authors":"G.Sivaganesh M.Daniel Sweetlin and B.V.Bhuvaneswari","doi":"10.19071/RRST.2015.V7.2888","DOIUrl":"https://doi.org/10.19071/RRST.2015.V7.2888","url":null,"abstract":"In this paper, the eigenvalues of a simple second-order non autonomous chaotic circuit namely, the variant of the Murali-Lakshmanan-Chua’s (MLCV) circuit is studied.  The dynamical behaviour of the circuit is obtained by means of a study on the Eigen values of the linearized Jacobian of the nonlinear differential equations.  The trajectories of the Eigen values as functions of the dynamic parallel loss conductance explaining the supercritical hopf bifurcation exhibited by the autonomous system is presented.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"24 1","pages":"10-13"},"PeriodicalIF":0.0,"publicationDate":"2015-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74620992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genus Cosmarium Corda from Thrissur Kole lands, Kerala","authors":"T. Sreekumar","doi":"10.19071/RRST.2015.V7.2668","DOIUrl":"https://doi.org/10.19071/RRST.2015.V7.2668","url":null,"abstract":"The present investigation deals with sixty eight taxa of Cosmarium Corda collected from the Kole lands of Thrissur, Kerala. The Kole lands constitute part of Vembanad-Kol, which is declared as one of the Ramsar sites of Kerala. All the taxa are systematically described with illustrations and their distribution in India. Of these, six taxa are first time reported from India and twenty nine taxa are new additions to the algal flora of Kerala. C. geminatum Lund. var. ornatum Behre, C. indentatum Gronbl. var. ellipticum Scott & Gronbl., C. pseudoconnatum Nordst. var. constictum West, C. quadrifarium Lund., C. quadriverrucosum West & West var. undulatum Scott & Prescott and C. subturgidum (Turn.) Schmidle are the new additions to the desmid flora of India.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2015-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77188287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bilateral carotico-clinoid foramen and inter-clinoid bars","authors":"J. Koshy, S. Bindhu","doi":"10.15197/ajmed.1.05","DOIUrl":"https://doi.org/10.15197/ajmed.1.05","url":null,"abstract":"The carotico-clinoid foramen is the result of ossification either of the carotico-clinoid ligament or of a dural fold extending between the anterior and middle clinoid processes of the sphenoid bone. It is anatomically important due to its relations with the cavernous sinus and its content, sphenoid sinus and pituitary gland. In this study the presence of carotico–clinoid foramen and inter-clinoid bars has been studied on 25dry skulls. In 25 dry skulls, authors have reported one skull, in which, a bilateral: foramen clinoideo caroticum and interclinoid bars are seen as a consequence of fusion of anterior, middle and posterior clinoid processes.The existence of a bony carotico-clinoid foramen may cause compression, tightening or stretching of the internal carotid artery. Further, removing the anterior clinoid process is an important step in regional surgery; the presence of a bony carotico-clinoid foramen may have high risk. Therefore, detailed knowledge of the type of ossification between the anterior and middle clinoid processes can be necessary to increase the success of regional surgery.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"15 1","pages":"01-02"},"PeriodicalIF":0.0,"publicationDate":"2012-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73083837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}