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Full-Text Articles in Social and Behavioral Sciences

Building Sustainable Societies: Exploring Sustainability Policy And Practice In The Age Of High Consumption, Cindy Isenhour Dec 2013

Building Sustainable Societies: Exploring Sustainability Policy And Practice In The Age Of High Consumption, Cindy Isenhour

Cindy Isenhour

This dissertation is an attempt to examine how humans in wealthy, post-industrial urban contexts understand sustainability and respond to their concerns given their sphere of influence. I focus specifically on sustainable consumption policy and practice in Sweden, where concerns for sustainability and consumer-based responses are strong. This case raises interesting questions about the relative strength of sustainability movements in different cultural and geo-political contexts as well as the specific factors that have motivated the movement toward sustainable living in Sweden.

The data presented here supports the need for multigenic theories of sustainable consumerism. Rather than relying on dominant theories of …


Environmental And Socio-Economic Considerations For Aquaculture In Jervis Bay, Nsw, Alyssa Joyce, Ana M. Rubio, Pia C. Winberg Dec 2013

Environmental And Socio-Economic Considerations For Aquaculture In Jervis Bay, Nsw, Alyssa Joyce, Ana M. Rubio, Pia C. Winberg

Dr Pia C Winberg

No abstract provided.


Kinase Inhibitory, Haemolytic And Cytotoxic Activity Of Three Deep-Water Sponges From North Western Australia And Their Fatty Acid Composition, Ana Zivanovic, Natalie J. Pastro, Jane Fromont, Murray Thomson, Danielle Skropeta Nov 2013

Kinase Inhibitory, Haemolytic And Cytotoxic Activity Of Three Deep-Water Sponges From North Western Australia And Their Fatty Acid Composition, Ana Zivanovic, Natalie J. Pastro, Jane Fromont, Murray Thomson, Danielle Skropeta

Danielle Skropeta

The c-AMP dependent protein kinase (PKA) inhibition, haemolytic activity, and cytoxicity of 21 extracts obtained from North Western Australian sponges collected from depths of 84-135 m were investigated. Hexane extracts from Ircinia/Sarcotragus sp. and Geodia sp. displayed PKA inhibitory activities of 100 and 97% respectively (at 100 μg/mL), while aq. methanol extracts from Haliclona sp. exhibited potent haemolytic activity (75%) and hexane extracts from Geodia sp. were highly toxic (88%) to the brine shrimp Artemia franciscana. As the non-polar extracts gave the greatest PKA inhibition, these were further analysed by GC-MS and 29 fatty acids were identified in the highest …


Deep-Sea Natural Products, Danielle Skropeta Nov 2013

Deep-Sea Natural Products, Danielle Skropeta

Danielle Skropeta

This review covers the 390 novel marine natural products described to date from deep-water (>50 m)marine fauna, with details on the source organism, its depth and country of origin, along with anyreported biological activity of the metabolites. Relevant synthetic studies on the deep-sea naturalproducts have also been included.


Misidentification Of Tansy, Tanacetum Macrophyllum, As Yarrow, Achillea Grandifolia: A Health Risk Or Benefit?, Niko Radulovic, Polina Blagojevic, Danielle Skropeta, Aleksandra Zarubica, Bojan Zlatkovic, Radosav Palic´ Nov 2013

Misidentification Of Tansy, Tanacetum Macrophyllum, As Yarrow, Achillea Grandifolia: A Health Risk Or Benefit?, Niko Radulovic, Polina Blagojevic, Danielle Skropeta, Aleksandra Zarubica, Bojan Zlatkovic, Radosav Palic´

Danielle Skropeta

Tansy, Tanacetum macrophyllum (Waldst. & Kit.) Sch. Bip., is often misidentified by herb collectors as yarrow, Achillea grand folia Friv. With the former, cases of poisoning induced by its ingestion are well documented, but the latter is widely used for ethnopharmacological purposes. The aim of this study was to estimate, based on the volatile metabolite profiles of the two species, the potential health risk connected with their misidentification. GC and GC-MS analysis of the essential oils hydrodistilled using a Clevenger-type apparatus from A. grandifolia, T macrophyllum, and two plant samples (reputedly of A. grandifolia, but in fact mixtures of A. …


Kinase Inhibitors From Marine Sponges, Danielle Skropeta, Natalie Pastro, Ana Zivanovic Nov 2013

Kinase Inhibitors From Marine Sponges, Danielle Skropeta, Natalie Pastro, Ana Zivanovic

Danielle Skropeta

Protein kinases play a critical role in cell regulation and their deregulation is a contributing factor in an increasing list of diseases including cancer. Marine sponges have yielded over 70 novel compounds to date that exhibit significant inhibitory activity towards a range of protein kinases. These compounds, which belong to diverse structural classes, are reviewed herein, and ordered based upon the kinase that they inhibit. Relevant synthetic studies on the marine natural product kinase inhibitors have also been included.


Structures, Biological Activities And Phylogenetic Relationships Of Terpenoids From Marine Ciliates Of The Genus Euplotes, Graziano Guella, Danielle Skropeta, Graziano Di Giuseppe, Fernando Dini Nov 2013

Structures, Biological Activities And Phylogenetic Relationships Of Terpenoids From Marine Ciliates Of The Genus Euplotes, Graziano Guella, Danielle Skropeta, Graziano Di Giuseppe, Fernando Dini

Danielle Skropeta

In the last two decades, large scale axenic cell cultures of the marine species comprising the family Euplotidae have resulted in the isolation of several new classes of terpenoids with unprecedented carbon skeletons including the (i) euplotins, highly strained acetylated sesquiterpene hemiacetals; (ii) raikovenals, built on the bicyclo[3.2.0]heptane ring system; (iii) rarisetenolides and focardins containing an octahydroazulene moiety; and (iv) vannusals, with a unique C-30 backbone. Their complex structures have been elucidated through a combination of nuclear magnetic resonance spectroscopy, mass spectrometry, molecular mechanics and quantum chemical calculations. Despite the limited number of biosynthetic experiments having been performed, the large …


Average Mass Scan Of The Total Ion Chromatogram Versus Percentage Chemical Composition In Multivariate Statistical Comparison Of Complex Volatile Mixtures, Niko Radulovic, Polina Blagojevic, Danielle Skropeta Nov 2013

Average Mass Scan Of The Total Ion Chromatogram Versus Percentage Chemical Composition In Multivariate Statistical Comparison Of Complex Volatile Mixtures, Niko Radulovic, Polina Blagojevic, Danielle Skropeta

Danielle Skropeta

The analysis of complex volatile mixtures by gas chromatography-mass spectrometry (GC-MS) is a time-consuming process. It involves separation and identification of the components based on their retention times and fragmentation patterns, followed by determination of their relative percentages from integration of their peak areas. Herein we show that multivariate statistical analysis of the relative abundances of the m/z values obtained from the average mass scans (AMS) of the complex mixture is a faster and potentially more reliable method of assessing these mixtures. To achieve this, 15 model complex mixtures, were prepared comprising varying amounts of 10 different constituents. The AMS …


Synthesis And Anti-Leukaemic Activity Of Pyrrolo[3,2,1-Hi]Indole-1,2- Diones, Pyrrolo[3,2,1-Ij]Quinoline-1,2-Diones And Other Polycyclic Isatin Derivatives, Lidia Matesic, Julie M. Locke, Kara Vine, Marie Ranson, John B. Bremner, Danielle Skropeta Nov 2013

Synthesis And Anti-Leukaemic Activity Of Pyrrolo[3,2,1-Hi]Indole-1,2- Diones, Pyrrolo[3,2,1-Ij]Quinoline-1,2-Diones And Other Polycyclic Isatin Derivatives, Lidia Matesic, Julie M. Locke, Kara Vine, Marie Ranson, John B. Bremner, Danielle Skropeta

Danielle Skropeta

To further expand the structure–cytotoxic activity relationships of isatin derivatives and to reduce flexibility in substituent groups at nitrogen, 20 analogues incorporating a ring system between the N1 and C7 atoms of isatin were prepared using a variety of synthetic strategies. This yielded pyrroloindole-, pyrroloquinoline-, pyrroloacridine-, pyrrolophenanthridine- and benzopyrrolophenanthridine-based systems with embedded isatin moieties, the latter possessing a novel carbon skeleton. These compounds were subsequently assessed for their in vitro cytotoxicity against human U937 lymphoma cells, with the brominated pyrroloacridine dione 27 showing the most promising activity (IC50 3.01 μM) after 24 h.


Fatty And Volatile Oils Of The Gypsywort Lycopus Europaeus L. And The Gaussian-Like Distribution Of Its Wax Alkanes, Niko Radulovic, Marija Denic, Zorica Stojanovic-Radic, Danielle Skropeta Nov 2013

Fatty And Volatile Oils Of The Gypsywort Lycopus Europaeus L. And The Gaussian-Like Distribution Of Its Wax Alkanes, Niko Radulovic, Marija Denic, Zorica Stojanovic-Radic, Danielle Skropeta

Danielle Skropeta

The detailed analyses of the volatile essential oil and lipid profiles of the aerial parts from the blooming and fruit-forming stages of both ripe and unripe fruit of Lycopus europaeus (Lamiaceae) are presented. Both of these profiles are distinguished by components with a restricted occurrence in the Plant Kingdom. These rare compounds include (E)-hotrienol in the volatiles, numerous unusual fatty acids (such as very long chain, odd-numbered and branched-chain) in the bound lipids and a high amount of iso- and anteiso-alkanes in the epicuticular waxes. Furthermore, a Gaussian-like distribution of the relative amounts of the epicuticular wax alkanes was observed. …


Learning How To Be An Academic - The Story Of A New Academic In The Sciences, Danielle Skropeta Nov 2013

Learning How To Be An Academic - The Story Of A New Academic In The Sciences, Danielle Skropeta

Danielle Skropeta

No abstract provided.


Solid-State And Solution-Phase Conformations Of Pseudoproline-Containing Dipeptides, James R. Cochrane, Nima Sayyadi, Danielle Skropeta, Peter Turner, Jack K. Clegg, Katrina A. Jolliffe Nov 2013

Solid-State And Solution-Phase Conformations Of Pseudoproline-Containing Dipeptides, James R. Cochrane, Nima Sayyadi, Danielle Skropeta, Peter Turner, Jack K. Clegg, Katrina A. Jolliffe

Danielle Skropeta

The conformations of 14 threonine-derived pseudoproline-containing dipeptides (including four d-allo-Thr derivatives) have been investigated by NMR. In solution, the major conformer observed for all dipeptides is that in which the amide bond between the pseudoproline and the preceding amino acid is cis. For dipeptides in which the N-terminus is protected, the ratio of cis- to trans-conformers does not depend significantly on the side chain of the N-terminal amino acid, or the stereochemistry of the Thr residue. However, for dipeptides bearing a free N-terminus, there are significant differences in the ratios of cis- to trans-conformers depending on the side chain present. …


Quantitative Assessment Method Of Illegal Dumping În Small Rivers. Case Study: Neamt County, Romania, Florin C. Mihai Oct 2013

Quantitative Assessment Method Of Illegal Dumping În Small Rivers. Case Study: Neamt County, Romania, Florin C. Mihai

Florin C MIHAI

Poor waste management facilities from Romanian rural areas lead to uncontrolled waste disposal on improper sites. These bad practices are frequently in the the proximity of built-up areas , therefore, the small rivers inside these areas are susceptible to waste dumping. The paper aims to develop a quantitative assessment method of waste disposed into such small rivers from extra Carpathian region of Neamț county. The lack of organized waste collection services from 2003 lead to high values of waste disposed in such rivers frequently over 15 t/yr for each one. Despite some improvements compared to 2003 the small rivers inside …


The Politics Media Equation:Exposing Two Faces Of Old Nexus Through Study Of General Elections,Wikileaks And Radia Tapes, Ratnesh Dwivedi Mr Oct 2013

The Politics Media Equation:Exposing Two Faces Of Old Nexus Through Study Of General Elections,Wikileaks And Radia Tapes, Ratnesh Dwivedi Mr

Ratnesh Dwivedi

The important identity of a responsible media is playing an unbiased role in reporting a matter without giving unnecessary hype to attract the attention of the gullible public with the object of making money and money only.After reporting properly the media can educate the public to form their own opinion in the matters of public interest. Throughout the centuries, the world has never existed without information and communication, hence the inexhaustible essence of mass media. The government has the power to either make or reject whatever that will exist within its environment. It also determines how free the mass media …


Counting The Impossible: Sampling And Modeling To Achieve A Large State Homeless Count, Jennifer L. Priestley, Jane Massey Oct 2013

Counting The Impossible: Sampling And Modeling To Achieve A Large State Homeless Count, Jennifer L. Priestley, Jane Massey

Jennifer L. Priestley

Objective: Using inferential statistics, we develop estimates of the homeless population of a geographically large and economically diverse state -- Georgia.

Methods: Multiple independent data sources (2000 U.S. Census, the 2006 Georgia County Guide, Georgia Chamber of Commerce) were used to develop Clusters of the 150 Georgia Counties. These clusters were used as "strata" to then execute traified sampling. Homeless counts were conducted within the sample counties, allowing for multiple regression models to be developed to generate predictions of homeless persons by county.

Results: In response to a mandate from the US Department of Housing and Urban Development, the State …


Multi-Organizational Networks: Three Antecedents Of Knowledge Transfer, Jennifer L. Priestley, Subhashish Samaddar Oct 2013

Multi-Organizational Networks: Three Antecedents Of Knowledge Transfer, Jennifer L. Priestley, Subhashish Samaddar

Jennifer L. Priestley

Researchers have demonstrated that organizations operating within formal networks are more likely to experience knowledge transfer, and the associated benefits of knowledge transfer, than would organizations operating outside of a network. However, limited research attention has been given to how the established antecedents of knowledge transfer are affected by the different forms that multi-organizational networks can assume. Using two case studies, we develop six testable propositions regarding how three of the established antecedents of knowledge transfer —absorptive capacity, shared identity and causal ambiguity—would be affected by the different characteristics, which define multi-organizational network form. We discuss these propositions and raise …


Sojuznik Snowden: A Solid Russian Investment, Jan Kallberg Oct 2013

Sojuznik Snowden: A Solid Russian Investment, Jan Kallberg

Jan Kallberg

The Edward Snowden case catapulted us back to the heights of the Cold War for one single reason: His story is too manicured and well-placed to be true. As the old saying goes: If it sounds too good to be true, it probably isn’t. With the Snowden affair, many of the Russian political objectives are reached. It has has created a wedge that split the United States and Europe. Even if Vladimir Putin wears a fancy Italian suit, he is still a KGB-man, slightly better looking than the official grey suits in the heyday of the Soviet Eastern Bloc. The …


Etd_Con Utility And User Manual, Logan E. Jewett Oct 2013

Etd_Con Utility And User Manual, Logan E. Jewett

Logan E. Jewett

ETD_CON is a utility designed and developed for use by Iowa State University to improve workflow for processing electronic theses & dissertations for batch uploads to the digital repository.


Evaluating Emergency Management After An Event: Gaps And Suggestions, Neil Dufty Sep 2013

Evaluating Emergency Management After An Event: Gaps And Suggestions, Neil Dufty

Neil Dufty

Post-event evaluations of emergency management are critical to help emergency service providers and communities learn to build disaster resilience. This paper identifies five main types of formal post-event evaluations of emergency management that are used in Australia. It argues that these evaluations should be more consistent in their conduct and approach, more comprehensive in scope, and better timed. The paper also suggests that post-event evaluation reports should be released particularly to the affected communities.


Towards Respecting Indigenous Rights In Development Policy: The Case Of A Community-Based Forest Management Project In Panama, Benjamin Goodman Sep 2013

Towards Respecting Indigenous Rights In Development Policy: The Case Of A Community-Based Forest Management Project In Panama, Benjamin Goodman

Benjamin Goodman

As Latin American countries reach new heights of development, perched on the shoulders of an increasingly globalized economy, their local indigenous communities continue to be the most marginalized and impoverished people in the world. Sustainable development initiatives present themselves as a way to contribute to global economic development, while at the same time, respecting the livelihoods of rural peoples and preserving natural resources for future generations. However, unsustainable exploitation of natural resources continues to threaten the livelihoods and identities of many rural indigenous communities. As the economic, legal and political marginalization of indigenous peoples persists, the inevitable result of these …


Just Add Water: Colonisation, Water Governance, And The Australian Inland, Leah M. Gibbs Sep 2013

Just Add Water: Colonisation, Water Governance, And The Australian Inland, Leah M. Gibbs

Leah Maree Gibbs

Water has played a key role in the development of the Australian inland and the nation. For European colonists, the dry and variable landscape challenged ideas about nature imported from northern temperate regions. I argue first, that colonists brought with them ideas for ordering nature and tools for transforming landscapes that led to inappropriate and destructive water management and the silencing of local voices and knowledge systems. Secondly, colonial patterns of ordering and transforming landscapes are ongoing, but new ways of governing water, which challenge colonialism, are emerging. In the first section of the paper I discuss colonial relationships with …


An Automated Land Subdivision Tool For Urban And Regional Planning: Concepts, Implementation And Testing, Rohan Wickramasuriya, Laurie A. Chisholm, Marjetta Puotinen, Nicholas Gill, Peter Klepeis Sep 2013

An Automated Land Subdivision Tool For Urban And Regional Planning: Concepts, Implementation And Testing, Rohan Wickramasuriya, Laurie A. Chisholm, Marjetta Puotinen, Nicholas Gill, Peter Klepeis

Rohan Wickramasuriya, Ph.D.

Simulation of the land subdivision process is useful in many applied and research areas. Planners use such tools to understand potential impacts of planning regulations prior to their implementation. While the credibility of both land-use change and urban growth models would be enhanced by integrating capabilities to simulate land subdivision, such research is lacking in the published literature. Of the few subdivision tools that exist, most are either not fully-automated or are unable to generate realistic subdivision layouts. This limits their applicability, particularly for high resolution land-use change models. In this paper, we present a fully-automated land subdivision tool that …


Synthesis Of Reaction-Ready 6,6 '-Biindole And 6,6 '-Biisatin Via Palladium(Ii)-Catalysed Intramolecular C-H Functionalisation, Allan B. Gamble, Paul A. Keller Sep 2013

Synthesis Of Reaction-Ready 6,6 '-Biindole And 6,6 '-Biisatin Via Palladium(Ii)-Catalysed Intramolecular C-H Functionalisation, Allan B. Gamble, Paul A. Keller

Paul Keller

The first synthesis of a 6,6'-biindole and 6,6'-biisatin scaffold is reported with the penultimate step being the formation of the di-heterocyclic ring by Pd(II)-catalysed intramolecular C-H functionalisation and Sandmeyer cyclisation, respectively.


The First Syntheses Of Enantiopure 2,2 '-Biindoline, Steven M. Wales, Anthony C. Willis, Paul A. Keller Sep 2013

The First Syntheses Of Enantiopure 2,2 '-Biindoline, Steven M. Wales, Anthony C. Willis, Paul A. Keller

Paul Keller

The first two syntheses of chiral 2,2'-biindoline are reported either in five steps from 2,2'-bioxirane, or three steps from 2,2'-biaziridine, both with exceptional enantiopurity


Reductive Ring Opening Reactions Of Diphenyldihydrofullerenylpyrroles, William Hawkins, Paul A. Keller, Stephen G. Pyne Sep 2013

Reductive Ring Opening Reactions Of Diphenyldihydrofullerenylpyrroles, William Hawkins, Paul A. Keller, Stephen G. Pyne

Paul Keller

The reductive ring opening reaction conditions for the simple [60]fullerenyldihydropyrrole 1 have been optimized to include acetic acid in the reaction mixture to rapidly protonate the anionic intermediate. Under these conditions, the ring opened dihydrofullerene 2 was obtained in 68% yield. Under slightly modified conditions and at −78 °C, the reductive bis-ring opening of the tethered trans-4 isomer 3 provided the novel racemic bis-dihydrofullerenyl derivative 7.


Revealing Indigenous Indonesian Traditional Medicine: Anti-Infective Agents, Paul A. Keller, Ari Satia Nugraha Sep 2013

Revealing Indigenous Indonesian Traditional Medicine: Anti-Infective Agents, Paul A. Keller, Ari Satia Nugraha

Paul Keller

Indonesia is rich in medicinal plants which the population has used traditionally from generation to generation for curing diseases. Our interest in the treatment of infectious diseases has lead to the investigation of traditional Indonesian treatments. In this review, we present a comprehensive review of ethnopharmacologically directed screening in Indonesian medicinal plants to search for new anti-viral, antimalarial, anti-bacterial and anti-fungal agents. Some potent drug leads have been isolated from Indonesian medicinal plants. Further research is still required for the lead development as well as the search for new bioactive compounds from the enormous medicinal plant resources.


Binaphthyl-Anchored Antibacterial Tripeptide Derivatives With Hydrophobic C-Terminal Amino Acid Variations, John Bremner, Paul A. Keller, Stephen Pyne, Mark Robertson, Kandasamy Sakthivel, Kittiya Somphol, Dean Baylis, Jonathon A Coates, John Deadman, Dharshini Jeevarajah, David I. Rhodes Sep 2013

Binaphthyl-Anchored Antibacterial Tripeptide Derivatives With Hydrophobic C-Terminal Amino Acid Variations, John Bremner, Paul A. Keller, Stephen Pyne, Mark Robertson, Kandasamy Sakthivel, Kittiya Somphol, Dean Baylis, Jonathon A Coates, John Deadman, Dharshini Jeevarajah, David I. Rhodes

Paul Keller

The facile synthesis of seven new dicationic tripeptide benzyl ester derivatives, with hydrophobic group variations in the C-terminal amino acid component, is described. Moderate to good activity was seen against Gram-positive bacteria in vitro. One cyclohexyl-substituted compound 2c was tested more widely and showed good potency (MIC values ranging from 2–4 μg/mL) against antibiotic-resistant strains of Staphylococcus aureus and Enterococci (VRE, VSE), and against Staphylococcus epidermidis.


Synthesis Of Novel N-Protected Hydrophobic Phenylalanines And Their Application In Potential Antibacterials, Timothy P. Boyle, J. B. Bremner, Jonathan A. Coates, John Deadman, Paul A. Keller, Stephen G. Pyne, Kittiya Somphol Sep 2013

Synthesis Of Novel N-Protected Hydrophobic Phenylalanines And Their Application In Potential Antibacterials, Timothy P. Boyle, J. B. Bremner, Jonathan A. Coates, John Deadman, Paul A. Keller, Stephen G. Pyne, Kittiya Somphol

Paul Keller

An efficient synthesis of two new N-acetyl-4’-arylphenylalanines is described together with their incorporation in to a number of cationic peptoid antibacterial agents, one of which had an MIC of 7.8 μg/mL against Staphylococcus aureus.


Phytochemical And Biological Activity Studies Of The Bhutanese Medicinal Plant Corydalis Crispa, Phurpa Wangchuk, Paul A. Keller, Stephen G. Pyne, Thanapat Sastraruji, Malai Taweechotipatr, Roonglawan Rattanajak, Aunchalee Tonsomboon, Sumalee Kamchonwongpaisan Sep 2013

Phytochemical And Biological Activity Studies Of The Bhutanese Medicinal Plant Corydalis Crispa, Phurpa Wangchuk, Paul A. Keller, Stephen G. Pyne, Thanapat Sastraruji, Malai Taweechotipatr, Roonglawan Rattanajak, Aunchalee Tonsomboon, Sumalee Kamchonwongpaisan

Paul Keller

The chemical constituents and biological activities of Corydalis crispa (Fumariaceae) were investigated for the first time. The phytochemical study resulted in the isolation of nine known isoquinoline alkaloids: protopine (1), 13-oxoprotopine (2), 13-oxocryptopine (3), stylopine (4), coreximine (5), rheagenine (6), ochrobirine (7), sibiricine (8) and bicuculline (9), with complete NMR data for 2 and 3 provided here for the first time. Crude extracts exhibitedsignificant anti-inflammatory (p < 0.01) activity against TNF-alpha production in LPS activated THP-1 cells. The acetylcholinesterase inhibitory activity of compounds 2, 4 and 7 and the antiplasmodial activity of compound 5 against P. falciparum strains TM4/8.2 and K1CB1 …


Antimalarial Alkaloids From A Bhutanese Traditional Medicinal Plant Corydalis Dubia, Phurpa Wangchuk, Paul A. Keller, Stephen G. Pyne, Anthony C. Willis, Sumalee Kamchonwongpaisan Sep 2013

Antimalarial Alkaloids From A Bhutanese Traditional Medicinal Plant Corydalis Dubia, Phurpa Wangchuk, Paul A. Keller, Stephen G. Pyne, Anthony C. Willis, Sumalee Kamchonwongpaisan

Paul Keller

Ethnopharmacological relevance: Corydalis dubia is used in Bhutanese traditional medicine as a febrifuge and for treating infections in the blood, liver and bile which correlate to the signs and symptoms of malarial and microbial infections. Aim of the study: To validate the ethnopharmacological uses of the plant and to discover potential new therapeutic drug leads. Materials and methods C. dubia was collected from Bhutan and the alkaloids were obtained using acid–base fractionation and separation by repeated column and preparative plate chromatography. The alkaloids were identified from analysis of their physiochemical and spectroscopic data and were tested for antiplasmodial, antimicrobial and …