Frontiers in Life Science最新文献_第6页

Charge transfer in DNA and its diverse modelling approaches DNA中的电荷转移及其多种建模方法

Frontiers in Life Science Pub Date : 2016-07-02 DOI: 10.1080/21553769.2016.1207570

Dr. Deepak Rawtani, Binal Kuntmal, Y. Agrawal

引用次数: 12

EARTH University educational model: perspective on agricultural educational models for the twenty-first century 地球大学教育模式:21世纪农业教育模式的展望

Frontiers in Life Science Pub Date : 2016-07-02 DOI: 10.1080/21553769.2016.1193826

J. Zaglul

{"title":"EARTH University educational model: perspective on agricultural educational models for the twenty-first century","authors":"J. Zaglul","doi":"10.1080/21553769.2016.1193826","DOIUrl":"https://doi.org/10.1080/21553769.2016.1193826","url":null,"abstract":"ABSTRACT Institutions of higher education have an important role in preparing the professionals that society needs to confront the challenges of the twenty-first century. A transformation of traditional higher education models must occur to ensure the relevance and impact of university education for the individual and society. This can be achieved by taking a student-centered approach that encourages questions and criticisms and provides students with opportunities to discover knowledge through experience. Additionally, the doors of the university must remain open to students of diverse backgrounds to ensure that the benefits of advanced education permeate society. For the past 25 years, EARTH University – a private, not for profit, international university located in Costa Rica – has implemented an innovative educational model to accomplish its unique mission ‘to form leaders with ethical values to contribute to sustainable development and to construct a prosperous and just society’. The EARTH model focuses on four formative areas: scientific and technical knowledge, social and environmental awareness, ethics and values, and entrepreneurship. More than 2000 professionals from over 30 countries in the Americas, the Caribbean, Africa, Asia, and Europe are graduates of the EARTH model with proven results. This article presents the EARTH case as a model for study.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1193826","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60090742","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}

引用次数: 2

Strain selection, growth productivity and biomass characterization of novel microalgae isolated from fresh and wastewaters of upper Punjab, Pakistan 从巴基斯坦旁遮普上游淡水和废水中分离的新型微藻的菌株选择、生长效率和生物量特征

Frontiers in Life Science Pub Date : 2016-07-02 DOI: 10.1080/21553769.2016.1204957

Saba S Gill, M. Mehmood, N. Ahmad, M. Ibrahim, U. Rashid, Shafaqat Ali, I. Nehdi

{"title":"Strain selection, growth productivity and biomass characterization of novel microalgae isolated from fresh and wastewaters of upper Punjab, Pakistan","authors":"Saba S Gill, M. Mehmood, N. Ahmad, M. Ibrahim, U. Rashid, Shafaqat Ali, I. Nehdi","doi":"10.1080/21553769.2016.1204957","DOIUrl":"https://doi.org/10.1080/21553769.2016.1204957","url":null,"abstract":"ABSTRACT The present study was focussed on selection of fast-growing microalgae with higher lipid content using cheaper growth media, aimed to reduce the cost of algal biomass production. Samples were collected from 40 different sites from fresh and wastewater bodies. Based on morphological differences, two microalgae (SSG and SA) from wastewater and three (OP, DFM and JRC) from fresh water habitat were selected for further characterization. The specific growth rates (g Day −1 L−1) of the OP, DFM, JRC, SA and SSG were found to be 0.614, 0.638, 0.734, 1.06 and 1.02, respectively, whereas the doubling time (Td) was shown to be as 39.30, 36.48, 22.08, 12.24 and 12.98 h, respectively, when cultured without controlled temperature and CO2 supply, in a locally designed photobioreactor. All five microalgae shown considerable growth at a range of pH 6.0–9.0 with a peak activity within pH range 7.5–8.5. The OP, DFM and JRC contained 27%, whereas SSG and SA shown 39% lipid content. The phylogenetic analyses based on the 18S rRNA gene sequence have shown that studied microalgal strains may be novel species.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1204957","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60090914","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}

引用次数: 26

An in silico guided identification of nAChR agonists from Withania somnifera 在计算机引导下鉴定酒藤nAChR激动剂

Frontiers in Life Science Pub Date : 2016-07-02 DOI: 10.1080/21553769.2016.1207569

C. Remya, K. V. Dileep, E. J. Variayr, C. Sadasivan

{"title":"An in silico guided identification of nAChR agonists from Withania somnifera","authors":"C. Remya, K. V. Dileep, E. J. Variayr, C. Sadasivan","doi":"10.1080/21553769.2016.1207569","DOIUrl":"https://doi.org/10.1080/21553769.2016.1207569","url":null,"abstract":"ABSTRACT In Indian traditional practice of medicines, numerous plants have been used against various neurodegenerative disorders like Alzheimer's disease (AD). Withania somnifera (Ashwagandha in Sanskrit) is one of the medicinal plants exhibiting broad spectrum activity against various diseases. Due to its ability to improve cognitive functions, aswagandha extracts are used in various memory supplements. In the present study, the pharmacological activity of various bioactive compounds of aswagandha has been studied with respect to AD. The blood brain barrier penetrability and central nervous system (CNS) activity of these bioactive compounds were predicted using in silico tools. The predicted pharmacological properties and structure activity relationship focuses that the compounds such as anaferine, anahygrine, cuscohygrine and isopelletierine can be CNS active and neuronal nicotinic acetylcholine receptor (nAChR) agonists. In order to investigate the structure activity relationship results, molecular modeling studies has been carried out with promising ligands against nAChR. It is a known fact that the agonists of nAChRs are capable to improve communication between neurons and hence these compounds may be useful as lead compounds for the development of drugs against neurodegenerative disorders. This study also indirectly focuses how ayurvedic formulations (those containing aswagandha) are effective against neurodegenerative disorders.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1207569","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60090919","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}

引用次数: 16

Nutrition security is an integral component of food security 营养安全是粮食安全的一个组成部分

Frontiers in Life Science Pub Date : 2016-07-02 DOI: 10.1080/21553769.2016.1209133

N. Hwalla, Sibelle El Labban, Rachel A. Bahn

{"title":"Nutrition security is an integral component of food security","authors":"N. Hwalla, Sibelle El Labban, Rachel A. Bahn","doi":"10.1080/21553769.2016.1209133","DOIUrl":"https://doi.org/10.1080/21553769.2016.1209133","url":null,"abstract":"ABSTRACT This review argues that nutrition is an integral component of food security, and should be embedded within all four of its dimensions – availability, access, utilization, and stability. The review highlights current food insecurity in the Middle East and North Africa (MENA) region, as exacerbated by the triple burden of malnutrition, where undernutrition, micronutrient deficiencies, and overweight/obesity coexist. Previous efforts to address food security in MENA have focused on food availability, overlooking the other three dimensions and leaving nutrition considerations aside. Meanwhile, the literature has recognized the need to highlight nutrition as fundamental, and opted for the term ‘food and nutrition security’. To achieve food and nutrition security in MENA, a nutrition lens must be applied across all four dimensions – from assessment, to policy and programming, to capacity building. For example, MENA countries can adopt policies and programs including well-structured food subsidies, dietary guidelines, public awareness, and education campaigns to increase availability and accessibility of nutritious and safe foods, and stimulate consumer demand for those. To accomplish this, MENA needs to build stakeholders' capacity and equip them to address the challenges that are hindering the achievement of food and nutrition security now and into the future.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1209133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60091175","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}

引用次数: 69

Cold active lipases – an update 冷活性脂肪酶-更新

Frontiers in Life Science Pub Date : 2016-07-02 DOI: 10.1080/21553769.2016.1209134

M. Kavitha

引用次数: 43

Effect of Pochonia chlamydosporia-based formulates on the regulation of root-knot nematodes and plant growth response 以衣孢子虫为基础的配方对根结线虫和植物生长反应的调控作用

Frontiers in Life Science Pub Date : 2016-06-15 DOI: 10.1080/21553769.2016.1193827

V. М. Sellitto, G. Curto, E. Dallavalle, A. Ciancio, M. Colagiero, Laura Pietrantonio, G. Bireescu, V. Stoleru, M. Storari

{"title":"Effect of Pochonia chlamydosporia-based formulates on the regulation of root-knot nematodes and plant growth response","authors":"V. М. Sellitto, G. Curto, E. Dallavalle, A. Ciancio, M. Colagiero, Laura Pietrantonio, G. Bireescu, V. Stoleru, M. Storari","doi":"10.1080/21553769.2016.1193827","DOIUrl":"https://doi.org/10.1080/21553769.2016.1193827","url":null,"abstract":"ABSTRACT EU legislation restricted many chemicals for root-knot nematodes (Meloidogyne spp., RKNs) control. Alternative ways of plant protection were hence investigated, based on the use of microbial formulations exploiting plant parasites antagonism. RKNs are severe and widespread pests causing extensive damage to crops in greenhouse and field. Several antagonistic microorganisms are suitable for biocontrol, including the nematophagous hyphomycete Pochonia chlamydosporia that parasitizes eggs to acquire additional nourishment and face competition with other soil microorganisms. A commercial product (POCHAR) was developed by Microspore based on P. chlamydosporia with other microbial inocula that can be applied through irrigation. The aim of this study was to test POCHAR’s efficacy against RKNs on potato and its promotion effect on tomato in two field trials. Moreover, the research included trials to evaluate the best method for open-field application in crops not managed through drip irrigation, opening up the possibility to treat large areas without major technological needs. RKNs control with POCHAR represented a viable alternative to chemicals. In conclusion, the organic approach developed through the bioformulated product highlighted effective RKNs management, with a potential to sustain both plant nutrition and the related root protection needs.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1193827","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60090748","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}

引用次数: 18

Comparison of chlorophyll content in greenhouse tomato and cucumber leaves after HBED-Fe and EDDHA-Fe applications 施用HBED-Fe和EDDHA-Fe后温室番茄和黄瓜叶片叶绿素含量的比较

Frontiers in Life Science Pub Date : 2016-06-13 DOI: 10.1080/21553769.2016.1193828

Gilbert Medawar, G. Srour, D. El Azzi

{"title":"Comparison of chlorophyll content in greenhouse tomato and cucumber leaves after HBED-Fe and EDDHA-Fe applications","authors":"Gilbert Medawar, G. Srour, D. El Azzi","doi":"10.1080/21553769.2016.1193828","DOIUrl":"https://doi.org/10.1080/21553769.2016.1193828","url":null,"abstract":"ABSTRACT Iron is an essential micro-element for plant growth. In the calcareous soils of Lebanon, immobilization of iron can lead to chlorosis and reduce the yields of agricultural production. Iron fertilization is therefore crucial to ensure good plant growth. The objective of this work was to compare the efficiency of the iron chelate HBED-Fe to that of EDDHA-Fe, on tomato (Solanum lycopersicum L.) and cucumber crops (Cucumis sativus L.). Five modules were studied in two separate greenhouses: one control, one module with fertilization by EDDHA-Fe and three modules with different applications of HBED-Fe. Chlorophyll and Fe contents in leaves were analyzed at different stages of the plants' cycle. Cucumber crops treated with HBED-Fe showed 19.2% higher chlorophyll content than the ones treated with EDDHA-Fe. Tomato crops presented 11.2% higher chlorophyll content when treated with HBED-Fe. For cucumbers, HBED-Fe should be applied in three applications separated by 25 days. For tomatoes, HBED-Fe should be applied in two applications separated by a month. The use of the HBED9% iron chelate was proved to be more effective than that of EDDHA6% because more efficiency was achieved with 40% less application rate. Multiple applications were also more effective than single applications.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1193828","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60090789","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}

引用次数: 6

Feeding the world into the future – food and nutrition security: the role of food science and technology† 养活世界走向未来——粮食和营养安全:食品科学与技术的作用†

Frontiers in Life Science Pub Date : 2016-05-05 DOI: 10.1080/21553769.2016.1174958

J. Tian, B. C. Bryksa, R. Yada

引用次数: 67

Next-generation sequencing revolution through big data analytics 大数据分析带来的下一代测序革命

Frontiers in Life Science Pub Date : 2016-04-02 DOI: 10.1080/21553769.2016.1178180

R. Tripathi, Pawan Sharma, P. Chakraborty, P. Varadwaj

{"title":"Next-generation sequencing revolution through big data analytics","authors":"R. Tripathi, Pawan Sharma, P. Chakraborty, P. Varadwaj","doi":"10.1080/21553769.2016.1178180","DOIUrl":"https://doi.org/10.1080/21553769.2016.1178180","url":null,"abstract":"ABSTRACT Next-generation sequencing (NGS) technology has led to an unrivaled explosion in the amount of genomic data and this escalation has collaterally raised the challenges of sharing, archiving, integrating and analyzing these data. The scale and efficiency of NGS have posed a challenge for analysis of these vast genomic data, gene interactions, annotations and expression studies. However, this limitation of NGS can be safely overcome by tools and algorithms using big data framework. Based on this framework, here we have reviewed the current state of knowledge of big data algorithms for NGS to reveal hidden patterns in sequencing, analysis and annotation, and so on. The APACHE-based Hadoop framework gives an on-interest and adaptable environment for substantial scale data analysis. It has several components for partitioning of large-scale data onto clusters of commodity hardware, in a fault-tolerant manner. Packages like MapReduce, Cloudburst, Crossbow, Myrna, Eoulsan, DistMap, Seal and Contrail perform various NGS applications, such as adapter trimming, quality checking, read mapping, de novo assembly, quantification, expression analysis, variant analysis, and annotation. This review paper deals with the current applications of the Hadoop technology with their usage and limitations in perspective of NGS.","PeriodicalId":12756,"journal":{"name":"Frontiers in Life Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21553769.2016.1178180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60090733","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}

引用次数: 34