Joseph Benedict - Academia.edu (original) (raw)

Papers by Joseph Benedict

Venous thromboembolism (VTE) is a significant cause of hospital related morbidity and mortality. ... more Venous thromboembolism (VTE) is a significant cause of hospital related morbidity and mortality. The purpose of this audit was to identify the adherence to hospital VTE prophylaxis guidelines in patients that have developed VTE within 90 days of admission at Royal Darwin Hospital in 2007 to 2009. A total of 542 episodes of VTE were identified by the Royal Darwin Hospital (RDH) coding department, pertaining to 431 diagnoses. Diagnosis was based on a confirmed compression Doppler ultrasound or computed tomography (CT) angiogram. A total of 123 patients were excluded on the basis of superficial thrombophlebitis (n=49), potential miscoding (n=17), renal ward admission (n=14), intervention in another hospital (n=14), palliative care (n=9), wrong year (n=5), age <18 years (n=11), suspected VTE without confirmation (n=2) and post-mortem diagnosis (n=1). Of the 308 remaining episodes, 14.3% (n=44) developed VTE associated with their current indexed admission and 17.2% (n=53) were readmis...

Clinical Infectious Diseases

Background Malaysia aims to eliminate malaria by 2020. However, while cases of Plasmodium falcipa... more Background Malaysia aims to eliminate malaria by 2020. However, while cases of Plasmodium falciparum and Plasmodium vivax have decreased substantially, the incidence of zoonotic malaria from Plasmodium knowlesi continues to increase, presenting a major challenge to regional malaria control efforts. Here we report incidence of all Plasmodium species in Sabah, including zoonotic P. knowlesi, during 2015–2017. Methods Microscopy-based malaria notification data and polymerase chain reaction (PCR) results were obtained from the Sabah Department of Health and State Public Health Laboratory, respectively, from January 2015 to December 2017. From January 2016 this was complemented by a statewide prospective hospital surveillance study. Databases were matched, and species was determined by PCR, or microscopy if PCR was not available. Results A total of 3867 malaria cases were recorded between 2015 and 2017, with PCR performed in 93%. Using PCR results, and microscopy if PCR was unavailable, ...

Journal of Alloys and Compounds

One dimensional tin/indium (Sn/In) nanowires have been synthesized through a surfactant assisted ... more One dimensional tin/indium (Sn/In) nanowires have been synthesized through a surfactant assisted chemical reduction method in aqueous solutions at low temperature (~0 o C). Synthetic parameters such as stirring speed, injection rate of reducing agent, and alloy ratio were used to control the size and aspect ratio of the resulting nanowires. It was observed that the diameter of the nanowires was around 70 nm for all the synthesis conditions that were studied, whereas the length of the nanowires can be controlled in the range of 400 nm to 2 µm. The morphology and structure of the Sn/In nanowires were characterized by field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), and X-ray powder diffraction (XRD), and their thermal properties were measured by differential scanning calorimetry (DSC). Structure analysis indicated that the Sn/In nanowires were mainly composed of InSn4 and Sn; no In3Sn phase was observed in the nanowires. DSC results confirmed the structures of the Sn/In nanowires that were measured through XRD and indicated that the nanowires started to melt at a relatively low temperature around 118 °C. Finally, a growth mechanism based on the reaction and structural evolution was proposed to explain the nanowire formation and growth process.

Wildlife Society Bulletin, 2016

The Florida mottled duck (Anas fulvigula fulvigula) is threatened by introgression through hybrid... more The Florida mottled duck (Anas fulvigula fulvigula) is threatened by introgression through hybridization with feral mallards (A. platyrhynchos). An essential component in managing this threat is the ability to accurately distinguish mottled ducks from mallards and hybrids in the wild. We provide a genetically cross-validated phenotype key that accurately identifies mottled ducks. We collected data on structural and plumage traits from museum specimens of Florida, USA, mottled ducks and mallards to identify morphological traits useful in this process. We performed extensive comparisons and discriminant function analysis to identify traits informative in distinguishing the 2 species. We used these traits to preliminarily assign 168 contemporary birds as putative mottled duck, mallard, or hybrid. We collected tissue samples from each contemporary specimen and amplified and genotyped associated DNA. We used microsatellite markers to determine posterior probability species assignments for the 168 specimens. We then performed recursive partitioning of phenotypic traits and posterior genotype assignments to create identification keys based on the most informative traits separating mottled ducks from mallards and hybrids. Finally, we cross-validated the keys by comparing assignments made using the key to those from genotyping for 339 wild ducks. The keys were >90% accurate, which suggests that their adoption will increase the ability of managers to address the threat of hybridization by mallards by allowing mottled ducks to be distinguished from other ducks in Florida. Our research provides a methodology to develop genetically cross-validated identification keys for other species threatened by genetic introgression. © 2016 The Wildlife Society.

Bulletin of the Association of College Unions International, Jun 1, 1984

Future societal trends and implications for the college union and student activities profession a... more Future societal trends and implications for the college union and student activities profession are considered. Ten major trends identifi6d by John Naisbitt in his recent book "Megat.rends" are used as focal points. Attention is directed to shifts from: an industrial society to an information society; forced technology to high tech/high touch; a national economy to a world economy; short-term to long-term planning; centralization to decentralization; institutional help to self-help; a representative to participatory democracy; hierarchies to networking; North to South; and either/or to multiple options. Specific projections include: operations of unions and student activities staff will be computerized; there will be a need to provide additional personalization to staff and students; the closely related trends of self-help and high touch (human response) will probably have the greatest challenges for the profession; student involvement in policy decisions will become more meaningful; and the competition for student enrollment will increase for the Northeast United States, while the three growth megastates (California, Florida, and Texas) will be oversubscribed. Harold K. Hodgkinson's projections of the college student populations in the 1990s are also listed. (SW)

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1974

Th e s ys te m NaC I-AI C I:1 h as bee n restudi e d b y DTA , vi s ua l obse rv a ti on , and x•... more Th e s ys te m NaC I-AI C I:1 h as bee n restudi e d b y DTA , vi s ua l obse rv a ti on , and x•ray diffrac tion po wd e r tec hniqu es for ide ntifi ca ti on of c r ys ta llin e ph ases. It. wa s confirm ed th at the syste m co nta in s o ne inte rm e di ate co mpound NaA IC I. with a n in co ngru e nt mp of 153 ± 0.5 °C a nd a re gio n of liquid immiscibility exte ndin g from 80. 25 to 99.6 mol pe rce nt AI C I" at 19 l. 3 °C , th e monote c ti c te mpe rature.

Southeastern Naturalist, 2014

In waterfowl banding studies, the preseason banding period is commonly accepted as July through S... more In waterfowl banding studies, the preseason banding period is commonly accepted as July through September; however, in an effort to increase Aix sponsa (Wood Duck) banding in the Atlantic Flyway, several state agency biologists have considered banding Wood Ducks in June. We analyzed existing Wood Duck banding data to determine if direct band-recovery rates of Wood Ducks banded in June differed from those banded during July-September. We calculated direct recovery rates by state, month, and year for 1998-2007 at selected states in the Atlantic Flyway. Arcsine-transformed direct bandrecovery rates differed by month of banding (P = 0.0099; F = 3.973; df = 3, 111) and were lower in June than in July or August. We suggest that state or federal agencies conducting Wood Duck banding should spend their time and effort during the traditional banding period 1 July-30 September.

The Journal of Wildlife Management, 2000

Increasing use of grass carp (Ctenopharyngodou idella) to control aquatie plants in large reservo... more Increasing use of grass carp (Ctenopharyngodou idella) to control aquatie plants in large reservoirs has been a concern of waterbird managers because grass carp reduce biomass and diversity of native aquatic macrophytes and potentially lower habitat quality for birds. Native macrophytes were virtually climinated from Guntersville Reservoir. Alabama after the Tennessee Valley Authority (TVA) released grass carp, but Eurasian: watermilfoil (Myriophyllum spicatum) was unaffected. We revegetated 0.1-ha areas at Guntersville Reservol with native plants, and compared waterbird use and activity in native plant and miltoil habitats during October January to better evaluate effects of these habitat chauges on migrating and wintering waterbirds. We also determined the relative availability of these 2 plant types during fall and early winter. Milfoil and native plant habitats were used predominately by dabbling ducks and American coot (Fulica americana). Waterbirds were absent more often from native vegetation plots (36%) than from milfoil plots (1%) Density of waterbirds was high in native plant habitats in October, but was greater in milfoil habitats from November to January as native plant biomass declined and milfoil remained relatively abundant. Feeding was the predominant activity in most months, and time spent foraging did not differ between plant habitats in 1994-95. In 1993-94, waterfowl loraged more in native plant habitats in October and November, but foraging was greater in milfoil habitats in December and Jamiary. Submersed native plants and milfoil both were important to ducks and coot using Guntersville Reservoir Results suggest that maintaining a diverse aquatic plant community at southern reservoirs is beneficial to migrating and wintering waterbirds.

Journal of the American Ceramic Society, 1973

The phase diagram for the system K2S04-CsrS04 was determined by using DTA for melting relations a... more The phase diagram for the system K2S04-CsrS04 was determined by using DTA for melting relations and DTA and hightemperature X-ray diffractometry for subsolidus relations. At the solidus the system shows complete solid solubility, with a minimum at 940°C and 50 m o % CsSO,. Orthorhombic &SO4 and Cs,S04, the stable low-temp?rature forms, show mutual solid solubility and form a eutectoid a t 50 mo% CszS04 and 430°C, the lowest temperature of stability of the high-temperature hexagonal solid-solution phase. Isothermal plots of the a and c dimensions of this hexagonal phase vs composition show large positive deviations from linearity for c. These deviations are interpreted on the basis of the crystal structure of MNaS04 with a similar unit cell.

The Journal of Organic Chemistry, 1972

Unpublished MSc thesis, Institute of Public Health, …, 2006

Journal of the American …, 1954

... Extraction by Organic Acids.-Tests with 11.0 ml ... power of oxalic acid is too great for the... more ... Extraction by Organic Acids.-Tests with 11.0 ml ... power of oxalic acid is too great for the acid to be useful as an agent in the elution separation of the ... with tartaric acid in nitric acid solu-tion showed that complex formation is appreciable for both elements, but more so for zirconium. ...

Chemischer Informationsdienst, 1973

Das Phasendiagramm des Titelsystems wird nach Daten der DTA und Rontgenbeugung konstruiert.