Digital Commons Network^™

Marine Macroalgae: Prospective Hitchhikers Of Ship Ballast, Imchen Temjensangba

ASEAN Journal on Science and Technology for Development

Invasive alien species, on successful establishment, can displace native species. The threat of invasive species arises in view of their ability to outcompete and destabilize native biodiversity. Invasive species are found across all taxonomic groups of plants, animals and microorganisms. The green macroalga Ulva flexuosa has a potential to become invasive and this species was investigated for its hitchhiking potential under laboratory conditions. Zoospores of U. flexuosa were maintained at 4°C for nearly 10 months in the dark. Recruitment potential of zoospores after dark stress was tested in a modified Provasoli medium under optimal laboratoryconditions. The success rate of zoospore …

Industrial Seawater Cooling Systems Under Threat From The Invasive Green Mussel Perna Viridis, Venugopalan Vayalam P.

ASEAN Journal on Science and Technology for Development

The green mussel Perna viridis, native to the Asia-Pacific region, has been introduced to other regions such as the Caribbean, Japan and North and South America. It is a large, commercially important species, widely cultivated and harvested in Southeast Asia, but is also considered an invasive species elsewhere, capable of replacing native species. As a fouling organism in intake systems of coastal power plants, it causes flow blockage and loss of cooling efficiency. Mussel colonization during peak settlement season can exceed 35,000 individuals/m2 and biomass can exceed 100 kg/m2. They can withstand wide fluctuations in temperature and salinity. Previous work …

Composition Of Ballast Water From Ships Arriving At Kertih Port, Malaysia With Observations On Port And Offshore Waters, And Notes On Settlement Patterns Of Fouling Organisms, Hing Lee Siang, Bhubalan Kesaven, Tan Peck Ying, Husain Rohaida Mat

ASEAN Journal on Science and Technology for Development

We investigated plankton composition and water quality of ballast water from seven international ships docked at Kertih Port, Malaysia. Coscinodiscophyceae and cyanobacteria were the dominant phytoplankton found in ballast water samples, whereas copepod nauplii, Oithona sp., Microstella sp. and Paracalanus sp. were the dominant zooplankton. The densities for both phytoplankton and zooplankton in ships’ ballast and port waters were higher than those of offshore samples. All water quality parameters (except Cr) of port samples were within the safety levels prescribed for ports, oil and gas fields (Class 3) by the Malaysia Marine Water Quality Criteria Standard. The study of fouling …

The Life Course Of Female Homicide Offenders: The Context Of Turning Points, Alesa Liles

Qualitative Criminology (QC)

"Although research on female offending has grown in the past few decades, the criminal justice system has remained inadequate in addressing the needs of women. Available research shows some experiences play a significant role in the lives of women that differ from men. To elaborate, this study sought to incorporate life course perspective and the individual’s perspective to show that context is fundamental to life course research. This study identified life events and turning points specific to female homicide offenders and validated the necessary incorporation of perception and attribution to future research with life course perspective."

2018-September-15-Dr. Greg Ordway, University Marketing And Communications, East Tennessee State University

ETSU News

No abstract provided.

Ballast Water Control And Management In Brunei Darussalam, Jolkifli Hjh Zuliza Hj, Wahab Ranimah H.A

ASEAN Journal on Science and Technology for Development

The ongoing transfer of non-indigenous organisms through shipping, especially via ballast water transport, is placing marine and coastal resources under increased threat. The transport of Invasive Alien Species (IAS) is a critical issue which may cause irreversible consequences to receiving environments and economies needing particular attention. The main objective of this paper is to highlight the importance for implementation of ballast water management measures in Brunei Darussalam. This paper recognised IAS intrusion via ballast water has high probability to have direct effects on the economic value of fisheries sector, thus the need for an effective ballast water management strategy. Management …

Biofouling Community Structure In A Tropical Estuary Of Goa On The West Coast Of India, Desai Dattesh V, Krishnamurthy Venkat, Anil Arga Chandrashekar

ASEAN Journal on Science and Technology for Development

Biofouling community structure was studied in a tropical monsoon-influenced Mandovi estuary in Goa, west coast of India. Monthly, seasonal and yearly observations on biofouling on polyvinyl chloride (PVC) panels immersed at subsurface water level were recorded and photographed from May 2012 to September 2013. The barnacle Balanus amphitrite was the dominant fouling organism followed by calcareous polychaetes. The settlement and recruitment of barnacles took place year-round, with the exception of July 2012 and June 2013 (monsoon months). However, their peak abundance was observed during the later months of monsoon (August and September). Polychaetes were dominant during late post-monsoon and pre-monsoon …

Ballast Water Risk Assessment: The Indian Experience, Krishnamrthy Venkat, Sawant Subhash, Chandrashekar Anil Arga

ASEAN Journal on Science and Technology for Development

The Ballast Water Risk Assessment serves as a “Decision Support System” for any given port to take appropriate ballast water management actions. Risk assessment involves collation of data from the ballast water reporting forms to identify the source of ballast water. The environmental characteristics of the source and recipient ports are utilized to evaluate the similarities. This is then combined with other risk factors, including voyage duration and risk species to gain a preliminary indication of the overall risk posed by each source port. The results will help in evaluating the risk posed by ballast water introductions, and decide whether …

Comparison Of Thermally Actuated Retro-Diels-Alder Release Groups For Nanoparticle Based Nucleic Acid Delivery, Mohammad Abu-Laban, Raju R. Kumal, Jonathan Casey, Jeff Becca, Daniel Lamaster, Carlos N. Pacheco, Dan G. Sykes, Lasse Jensen, Louis H. Haber, Daniel J. Hayes

Faculty Publications

© 2018 Elsevier Inc. The present study explores alternate pericyclic chemistries for tethering amine-terminal biomolecules onto silver nanoparticles. Employing the versatile tool of the retro-Diels-Alder (rDA) reaction, three thermally-labile cycloadducts are constructed that cleave at variable temperature ranges. While the reaction between furan and maleimide has widely been reported, the current study also evaluates the reverse reaction kinetics between thiophene-maleimide, and pyrrole-maleimide cycloadducts. Density Functional Theorem (DFT) calculations used to model and plan the experiments, predict energy barriers for the thiophene-maleimide reverse reaction to be greatest, and the pyrrole-maleimide barriers the lowest. Based on the computational analyses, it is projected …

Genomic Sequence Of A Novel Endornavirus From Phaseolus Vulgaris And Occurrence In Mixed Infections With Two Other Endornaviruses, Ryo Okada, Ricardo Iván Alcalá-Briseño, Cesar Escalante, Sead Sabanadzovic, Rodrigo A. Valverde

Faculty Publications

The Endornaviridae family includes viruses with ssRNA genome that infect plants, fungi, and oomycetes. Plant endornaviruses do not cause visible symptoms and are transmitted only vertically. Many common bean (Phaseolus vulgaris) genotypes have been reported to be infected by Phaseolus vulgaris endornavirus 1 and Phaseolus vulgaris endornavirus 2. Using next-generation sequencing, we obtained the RNA sequence of a third common bean endornavirus, which we named Phaseolus vulgaris endornavirus 3 (PvEV3). The complete sequence consisted of 15,205nt in length with a single open reading frame (ORF) coding for a polyprotein of 4932 aa, and untranslated regions of 344önt and 62önt at …

Asean-India Cooperation Project On ‘Extent Of Transfer Of Alien Invasive Organisms In South/Southeast Asia Region By Shipping’, Chandrasekar Anil Arga, Tan Koh Siang

ASEAN Journal on Science and Technology for Development

A brief background of events leading to the successful implementation of the first ASEAN-India project on marine sciences is provided. Coordinated by India and Singapore, the project, entitled ‘Extent of transfer of alien invasive organisms in South/Southeast Asia region by shipping’ served to develop regional cooperation and networks to address the issue of alien invasive organisms, provide training for ASEAN scientists, as well as obtain baseline information on pest species for port management in the light of IMO’s Ballast Water Management Convention. The project was completed with an international workshop held in Chiangmai, Thailand where some 29 presentations were made …

Ship-Mediated Marine Bioinvasions: Need For A Comprehensive Global Action Plan, Anil Arga Chandrasekar, Krishnamurthy Venkat

ASEAN Journal on Science and Technology for Development

Concern for marine bioinvasion has drawn international attention. The action plans in place to address this issue and those that are being promulgated are in need of a reassessment. A review of invertebrate invasions across the world indicates inter-linkages between vectors. In this paper an effort is made to illustrate the geographical spread of invasive invertebrate organisms from different bioregions and the possible causes for their success. Shipping, which is the major vector identified for the success of marine bioinvasion, needs to be addressed in tandem with domestic, intra- and inter-regional precautionary measures, as prevention is the only cure.

Plate Settlement: Determination Of Fouling Organisms In Brunei, Jolkifli Hjh Zuliza Hj, Wahab Ranimah H.A

ASEAN Journal on Science and Technology for Development

Shipping is considered a primary vector of biological invasion. Hull fouling is recognized as one of the common vectors involved in the translocation of marine pests that may have deleterious impacts to ecology and economy. In an effort to understand the fouling communities within Brunei waters and as an early attempt to obtain baseline data, PVC plates were deployed at a depth of 1 meter, checked for taxa composition and replaced with new plates monthly and quarterly over a period of one year. The Caribbean bivalve Mytilopsis sallei was absent throughout the period of study, and plates were mainly colonized …

Marine Phytoplankton In Port And Ship’S Ballast Water At Tanjung Priok Harbour, North Jakarta, Indonesia, Thoha Hikmah, Rachman Arief

ASEAN Journal on Science and Technology for Development

This research aimed to study the phytoplankton community in ships’ ballast water in comparison with the natural assemblages in the waters of Tanjung Priok Harbour in Jakarta, Indonesia. Phytoplankton samples were collected between November 2011 to October 2012 from four ports of Tanjung Priok Harbour and from discharged ballast water of randomly selected ships in the port. Skeletonema, Thalassiosira, and Chaetoceros were three predominant phytoplankton genera in all samples. Ceratium and Protoperidinium were also commonly found in high densities in most samples. An unusual phytoplankton bloom (> 109 cells m-3) was observed in the ballast water sample taken in March …

Fouling Polychaetes In Tanjung Priok Port Of Jakarta, Indonesia, Hadiyanto Hadiyanto

ASEAN Journal on Science and Technology for Development

Fouling polychaetes in Tanjung Priok Port, Jakarta and their status were studied in order to update the list of marine alien species in Indonesia. Polychaetes were collected using six PVC panels that were submerged at a depth of 0.5 m over three months in Jakarta Bay. Polychaetes were identified to the lowest taxon possible based on characteristics of external morphology. The geographical distribution of identified polychaetes was then determined based on taxonomic literature in order to justify whether they were native or alien species for Indonesian waters. Twelve fouling polychaetes belonging to nine families are reported here. Of these, nine …

Challenges In Managing Marine Bio-Invasions Via Shipping In Singapore, Sing Lim Chin, Tan Koh Siang

ASEAN Journal on Science and Technology for Development

The economic, social and environmental impacts arising from the transfer and establishment of non indigenous marine species (NIMS) mediated through ship hull biofouling and ballast water discharges in the coastal marine environment require a regional approach to manage bio-invasions. As the coordinating body for maritime shipping affairs and protection of the marine environment, the International Maritime Organization (IMO) has been working with member states to adopt and ratify global conventions aimed at preventing invasive species transfer through shipping. As a major shipping hub and port-of-call in Southeast Asia, Singapore faces multiple challenges in managing marine bio-invasions including managing the transit …

Phytoplankton And Bacterial Communities In South Harbour, Manila Bay, Philippines, Azanza Rhodora V, Austero Nero M, Dungca Jenelle Clarisse R., Caspe Frenchly Joyce O., Khandeparker Lidita

ASEAN Journal on Science and Technology for Development

In line with the ASEAN-India project “Extent of Transfer of Alien Invasive Organisms in South/Southeast Asia via Shipping”, phytoplankton and bacterial communities in the waters off South Harbour, Manila Bay were investigated. Sampling was done in July and August 2012 and in April and May 2013. A total of 67 phytoplankton species including 29 diatoms and 38 dinoflagellates were identified. Potentially toxic Pseudo-nitzschia spp. were among the diatoms found as well as dinoflagellates Alexandrium spp., and Gymnodinium spp. The diatom Skeletonema costatum appeared to be the dominant species in July and August 2012, whereas Chaetoceros spp. constituted over 85% of …

Survey Of Fouling Organisms At Songkhla Port In Thailand, Phuttapreecha Ratchanee, Kajonwattanakul Sumana, Songkai Phatcharin, Choamanee Chaovadee

ASEAN Journal on Science and Technology for Development

The fouling organisms at Songkhla Port were investigated from November 2011 to December 2012. Samples were collected using PVC panels (10 cm x 20 cm) submerged for one-month and three-month periods. Analysis of fouling panels was carried out using PhotoGrid software. In addition to slime and silt, three types of fouling organisms, namely encrusting bryozoa, barnacles and calcareous polychaetes, were observed on the submerged PVC panels. Calcareous polychaetes and molluscs were the most diverse groups (ten species) on panels that were submerged for one-month and three-month periods. Barnacles (Balanus spp.) were most abundant on panels submerged for three-month periods, while …

Application Of Fluorescence In Situ Hybridization-Flow Cytometry (Fish-Fcm) Technique To Detect And Quantify Vibrio Cholerae Population From Different Geographic Regions, Khandeparker Lidita, Desai Dattesh V., Anil Arga Chandrashekar, Sawant S. S., Venkat K., Mapari Kaushal, Jolkifli Zuliza, Abd. Karim, Thoha Hikmah, Hadiyanto Hadiyanto, Dalasane Soukaseum, Chounlamountry Kongngeun, Khaing Myint Myint, Dungca Jenelle Clarisse, Azanza Rhodora, Lim Chin Sing, Tan Koh Siang, Kajonwattanakul Sumana, Phuttapreecha Ratchanee, Le Hoang Mai

ASEAN Journal on Science and Technology for Development

Rapid and species-specific detection, and quantification of pathogenic bacteria are fundamental for monitoring and assessment of the risk they pose to any ecosystem. The study employed Vibrio cholerae, a human pathogen responsible for the life-threatening diarrhoeal disease, cholera and one among the most unwanted from marine bioinvasion point of view. The present study coupled fluorescence in situ hybridization (FISH) technique, a powerful tool in molecular phylogenetic discrimination, with flow cytometry (FCM), a technique used for rapid and accurate quantification of both viable but non-cultivable and non-viable microorganisms. The FISH-FCM technique was used for the first time to quantify V. cholerae …

An Inter-Site Study Of Biofouling Recruitment On Static Immersion Panels In Major Ports Of South East Asia And India, Lim Chin Sing, Jolkifli Zuliza Haji, Jair Alina, Karim Noorizan, A. Wahab Ranimah, Desai Dattesh V., Krishnamurthy Venkat, Khandeparker, Mapari Kaushal, Sawant Subhash, Thoha Hikmah, Hadiyanto Hadiyanto, Dirhamsyah Dirhamsyah, Dalasane Soukaseum, Chounlamountry Kongneun, Hing Lee Siang, H. Yusof Shahruddin Bin, Khaing Myint Myint, E. Nacorda Hildie M., Austero Nero, Azanza Rhodora V., Pagdilao Cesario, Kajonwattanakul Sumana, Puttapreecha Ratchanee, Poovachiranon Sombat, Le Hoang Mai, Tran Thanh Thuy, Nguyen Van Cu, Tan Koh Siang, Anil Arga Chandrashekar

ASEAN Journal on Science and Technology for Development

Limited knowledge of native marine biodiversity hinders effective biodiversity management to safeguard South and Southeast Asia’s marine coastal environment against the threat of invasive species transfer through shipping. In particular, sessile marine biofouling organisms in South East Asian ports are poorly known. Through the support of the ASEAN-India Cooperation Project on the Extent of Transfer of Alien Invasive Organisms in South/South East Asia Region by Shipping, a coordinated effort to examine diversity of biofouling organisms in major port areas in Southeast Asia and India was made using polyvinylchloride (PVC) panels as recruitment surfaces in a static immersion study for a …

Lean Mass Mediates The Relation Between Temporal Summation Of Pain And Sex In Young Healthy Adults, Abdulaziz Awali, Ali Alsouhibani, Marie K. Hoeger Bement

Physical Therapy Faculty Research and Publications

Background

Previous studies have shown that women experience greater temporal summation (TS) of pain than men using a repetitive thermal stimulus. These studies, however, did not individualize the thermal stimulus to each subject’s thermal pain sensitivity. The aim of this study was to investigate sex differences in TS using an individualized protocol and potential mediators that have been shown to influence TS including physical activity and body composition.

Methods

Fifty young healthy men and women (21 men) participated in the study. Subjects completed TS testing on the right forearm using a repetitive thermal stimulus at a temperature that the subject …

Properties And Mechanisms Of Self-Sensing Carbon Nanofibers/Epoxy Composites For Structural Health Monitoring, Yanlei Wang, Yongshuai Wang, Baolin Wan, Baoguo Han, Gaochuang Cai, Zhizheng Li

Civil and Environmental Engineering Faculty Research and Publications

In this paper, carbon nanofibers (CNFs) with high aspect ratio were dispersed into epoxy matrix via mechanical stirring and ultrasonic treatment to fabricate self-sensing CNFs/epoxy composites. The mechanical, electrical and piezoresistive properties of the nanocomposites filled with different contents of CNFs were investigated. Based on the tunneling conduction and percolation conduction theories, the mechanisms of piezoresistive property of the nanocomposites were also explored. The experimental results show that adding CNFs can effectively enhance the compressive strengths and elastic moduli of the composites. The percolation threshold of the CNFs/epoxy composites is 0.186 vol% according to the modified General Effective Media Equation. …

Recent Trends Of Demersal Marine Fish And Invertebrate Production In Southeast Asia – A Hypothesis-Based Analysis, Padate Vinay P., Rivonker Chandrashekher U.

ASEAN Journal on Science and Technology for Development

Demersal marine fish and invertebrate production data for Southeast Asia (1996–2007) obtained from the Southeast Asian Fisheries Development Center (SEAFDEC) statistical bulletin indicated a reduced production by Thailand largely due to over-exploitation and altered coastal ecosystems. In contrast, increased production by Philippines, Indonesia and Malaysia was due to an increase in mechanised fishing fleets. Moreover, marginal increases in the ecosystem indicators were attributed to increased exploitation of high and mid trophic level organisms suggesting the development of “top-down” cascade effect in the future. In this bioregion, land use pattern affecting water quality coupled with altered monsoonal sequences and rising sea …

Research Symposium - Health Disparities 2018: Closing The Gap, The University Of Texas Rio Grande Valley. School Of Medicine

School of Medicine Publications

With the theme of “Health Disparities: Closing the Gap,” this symposium aims to showcase the work done by researchers here in the Valley and beyond toward improving the health and well-being of the communities they serve and society as a whole.

Pneumatic Balloon Dilation Versus Myotomy For The Treatment Of Achalsia, Benjamin E. Ueberroth

Clinical Research in Practice: The Journal of Team Hippocrates

A critical appraisal and clinical application of Moonen A, Annese V, Belmans A, et al. Long-term results of the European achalasia trial: A multicentre randomised controlled trial comparing pneumatic dilation versus laparoscopic Heller myotomy. Gut. 2016 May;65(5):732-9. doi: 10.1136/gutjnl-2015-310602.

Abstinence From Alcohol Improves Survival In Decompensated Cirrhotic Patients, Perry Zong

Clinical Research in Practice: The Journal of Team Hippocrates

A critical appraisal and clinical application of Alvarez MA, Cirera I, Solà R, Bargalló A, Morillas RM, Planas R. Long-term clinical course of decompensated alcoholic cirrhosis. Journal of Clinical Gastroenterology. 2011;45(10):906-911. doi: 10.1097/mcg.0b013e3182284e13.

Weak Effects Of Biochar And Nitrogen Fertilization On Switchgrass Photosynthesis, Biomass, And Soil Respiration, Dafeng Hui, Chih-Li Yu, Qi Deng, Priya Saini, Kenya Collins, Jason De Koff

Agricultural and Environmental Sciences Faculty Research

Application of nitrogen (N) fertilizer plus biochar may increase crop yield, but how biochar will interact with N fertilization to affect bioenergy crop switchgrass physiology, biomass, and soil CO₂ emission (i.e., soil respiration) from switchgrass fields remains unclear. Here, we assessed this issue by conducting a field experiment near Nashville TN with two levels of biochar treatment (a control without biochar addition and biochar addition of 9 Mg ha⁻¹), and four N fertilization levels (0 kg N ha⁻¹, 17 kg N ha⁻¹, 34 kg N ha⁻¹, and 67 kg N ha …

Water 2, Donald T. Austin

Don Austin - Be Well Out Here: The Big Go West

“I really don't know why it is that all of us are so committed to the sea, except I think it's because in addition to the fact that the sea changes, and the light changes, and ships change, it's because we all came from the sea. And it is an interesting biological fact that all of us have in our veins the exact same percentage of salt in our blood that exists in the ocean, and, therefore, we have salt in our blood, in our sweat, in our tears. We are tied to the ocean. And when we go back …

Iron-Dependent Cleavage Of Ribosomal Rna During Oxidative Stress In The Yeast Saccharomyces Cerevisiae, Jessica A Zinskie, Arnab Ghosh, Brandon M Trainor, Daniel Shedlovskiy, Dimitri G Pestov, Natalia Shcherbik

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Stress-induced strand breaks in rRNA have been observed in many organisms, but the mechanisms by which they originate are not well-understood. Here we show that a chemical rather than an enzymatic mechanism initiates rRNA cleavages during oxidative stress in yeast (Saccharomyces cerevisiae). We used cells lacking the mitochondrial glutaredoxin Grx5 to demonstrate that oxidant-induced cleavage formation in 25S rRNA correlates with intracellular iron levels. Sequestering free iron by chemical or genetic means decreased the extent of rRNA degradation and relieved the hypersensitivity of grx5Δ cells to the oxidants. Importantly, subjecting purified ribosomes to an in vitro iron/ascorbate …

Fall Convocation 2018 Program, Office Of Faculty Development

Fall Convocation

A program for the Fall 2018 convocation, giving information on programs to improve student learning, including Creating Effective Teaching Environments, Augmented Reality and Virtual Reality Experiences, Assessment as Ally. It also includes the Convocation Ceremony with 2018 Faculty and Staff Award winners and the State of the University Address by President Edward Montgomery.