103 Works

Scientific shortcomings in environmental impact statements internationally

Gerald Singh, Jackie Lerner, Megan Mach, Cathryn Clarke Murray, Bernardo Ranieri, Guillaume Peterson St-Laurent, Janson Wong, Alice Guimaraes, Gustavo Yunda-Guarin, Terre Satterfield & Kai Chan
1. Governments around the world rely on environmental impact assessment to understand the environmental risks of proposed developments. 2. To examine the basis for these appraisals, we examine the output of environmental impact assessment processes in jurisdictions within seven countries, focusing on scope (spatial and temporal), mitigation actions, and whether impacts were identified as ‘significant’. 3. We find that the number of impacts characterized as significant is generally low. While this finding may indicate that...

Territory acquisition mediates the influence of predators and climate on juvenile red squirrel survival

Jack G Hendrix, David Fisher, April Martinig, Stan Boutin, Ben Dantzer, Jeffrey Lane & Andrew McAdam
1) Juvenile survival to first breeding is a key life history stage for all taxa. Survival through this period can be particularly challenging when it can coincide with harsh environmental conditions such as a winter climate or food scarcity, leading to highly variable cohort survival. However, the small size and dispersive nature of juveniles generally makes studying their survival more difficult. 2) In territorial species, a key life history event is the acquisition of a...

LGBTQ2S tattooing in St. John's, NL.

This thesis offers an ethnographic account of LGBTQ2S tattooing in St. John’s, Newfoundland and Labrador through 19 interviews, four months of participant observation, and a media analysis. Interviews took place with tattooed and non-tattooed LGBTQ2S individuals, and tattoo artists/apprentices, ranging from 20 to 68 years old. Tattoo narratives were collected to understand what it might mean to be LGBTQ2S in St. John’s, in 2018. Research revealed that some LGBTQ2S individuals use tattoos for commemoration, self-expression,...

The dreaming boy and the waking city: alcohol consumption and the construction of a working-class identity in late nineteenth century Stockholm

Sweden’s capital city of Stockholm grew in commercial importance in the second half of the nineteenth century as the country experienced rapid industrialisation. This resulted in high labour mobility as people migrated to the city seeking work. The sanitary and housing conditions of the working class varied according to income and the availability of employment. Stockholm’s administration and middle-class imposed its authority on transitory workers with the passage of the Vagrancy Act of 1885 and...

Narrating Waegook identity: building transitory foreign-teacher community through folklore in the Republic of Korea

With increasing global mobility, itinerant expatriate groups – whether of teachers, retirees, students, or backpackers – constitute transitory folk groups easily overlooked by folklore studies. This thesis is an ethnographic study of a transient folk group of foreign teachers in Suncheon, Republic of Korea, and of how narratives about their experiences inform their sense of identity within that community. My observations of such groups in the Republic of Korea include working as a foreign English...

An exploration of the relationships between students’ listening skills, self-rated academic listening, and their metacognitive awareness

This empirical study investigated international students’ challenges in listening to academic lectures, and their use of metacognitive listening strategies to overcome their problems. The participants were 46 international students at Memorial University of Newfoundland who were enrolled in various levels of different academic programs. The data were collected using the following instruments: an IELTS listening test, demographic questions, the self-rated academic listening questionnaire (ALSA), the metacognitive awareness listening questionnaire (MALQ), and two open-ended questions. The...

The effects of chronic hypoxia and nitric oxide on myocardial contractility in steelhead trout (Onchorhynchus mykiss)

Environmental hypoxia has been intensifying and spreading in recent years due to climate change, and there is accumulating evidence that the cardiac function of hypoxia-intolerant fish is negatively affected by long-term exposure to low oxygen conditions. However, the cause of this reduced heart performance has not been conclusively identified, and it is unknown whether nitric oxide (NO)-mediated effects are involved. This thesis examined how chronic hypoxia (> 8 weeks at ~8 kPa O₂) influenced the...

Lithofacies and alteration of the Hurricane zone, of the Boomerang volcanogenic massive sulphide deposit, Tulks belt, Central Newfoundland, Canada

The Hurricane zone of the Boomerang volcanogenic massive sulphide (VMS) deposit is part of the VMShosting Cambro-Ordovician Tulks volcanic belt. The Hurricane zone is one of three lenses in the deposit and consists of a sub-horizontal (semi-)massive sulphide lens with combined resources of 55,100 tonnes @ 13.4% Zn, 7.0% Pb, 1.20% Cu, 159.0 g/t Ag, and 2.00 g/t Au. Mineralization is hosted in intermediate to felsic volcaniclastic rocks of the ca. 488 Ma Pats Pond...

Drawing the line: advance requests for medical assistance in dying: broad considerations with a special focus on dementia

Julia
This thesis considers the issue of whether to expand Medical Assistance in Dying (MAiD) legislation to include advance requests (ARs) broadly, with particular consideration for the dementia condition. The goal is to provide a deeper understanding of the value tensions involved in a decision of if and how ARs for MAiD should be extended to the Canadian population. To date, much of the discussion of the ethics of advance requests for MAiD focuses on those...

The BenBioDen database, a global database for meio-, macro- and megabenthic biomass and densities

Tanja Stratmann, Dick Van Oevelen, Pedro Martínez Arbizu, Chih-Lin Wei, Jian-Xiang Liao, Mathieu Cusson, Ricardo A. Scrosati, Philippe Archambault, Paul V. R. Snelgrove, Patricia A. Ramey-Balci, Brenda J. Burd, Ellen Kenchington, Kent Gilkinson, Rénald Belley & Karline Soetaert
Benthic fauna refers to all fauna that live in or on the seafloor, which researchers typically divide into size classes meiobenthos (32/ 64 µm – 0.5/ 1 mm), macrobenthos (250 µm – 1 cm), and megabenthos (> 1 cm). Benthic fauna play important roles in bioturbation activity, mineralization of organic matter, and in marine food webs. Evaluating their role in these ecosystem functions requires knowledge of their global distribution and biomass. We therefore established the...

Spatio-temporal modelling of fish stocks: deriving spatially-explicit MSY references points using a metapopulation model

Many fisheries are successfully managed using reference points (RPs) based on the maximum sustainable yield (MSY), in particular fMSY , the fishing mortality rate that achieves MSY. Typically, fMSY is derived assuming fish are homogeneously distributed in space. However, fishing should be spatially allocated to optimize yields and reduce stock depletion, and fMSY should be derived assuming fish are heterogeneously distributed. In this thesis, we apply a deterministic, age-structured model to derive spatially-explicit MSY RPs....

Can we stop learning safety by accident?

The question has been asked in many forums, why are major accidents still occurring? Awareness is an important basic learning factor to properly manage the lessons to be learned from major accidents. Over time, the recommendations made following an accident may be forgotten, procedures allowed to lapse, changes are made to equipment and the accident is just waiting to happen again. The memory within an organization that should help to prevent process safety accidents decays...

The structures of protonated and alkali metal cationized nucleobase self-assemblies and base pairs by infrared multiphoton dissociation spectroscopy and computational methods

Nucleobases are the bricks of nucleic acids such as deoxyribonucleic acid (DNA)/ribonucleic acid (RNA) molecules. In the current research, ionic nucleobase self-assemblies and base pairs were studied using gas-phase ion techniques in either a Fourier transform ion cyclotron resonance (FTICR) or ‘paul-type’ quadrupole ion-trap (QIT) mass spectrometers. Sustained off-resonance irradiation collision-induced dissociation (SORI-CID) and infrared multiphoton dissociation (IRMPD) were used to fragment the target ions. IRMPD spectroscopy was employed to collect spectra by using tunable...

Effect of an inverted seated position with upper arm blood flow restriction on neuromuscular fatigue

Change in body position, in addition to disturbances to the homeostasis of our body, can exacerbate neuromuscular fatigue. Experiencing a voluntary or involuntary inverted position is a stressful condition and can alter sympathetic nervous system activity, which has been suggested as a primary mechanism that may inhibit neuromuscular and cardiovascular function. Moreover, there is a possibility of complete or partial blood flow due to limb compression during life-threatening conditions such as overturned vehicles. Blood flow...

Data from: Going the distance: Influence of distance between boat noise and nest site on the behavior of paternal smallmouth bass

Katharine MacLean, Tanya Prystay, Michael Lawrence, Aarron Zolderdo, Lee Gutowsky, Erica Staaterman, Austin Gallagher & Steven Cooke
The effects of anthropogenic noise have garnered significant attention in marine ecosystems, but comparatively less is known about its impacts on freshwater ecosystems. For fish that provide parental care, the effects of acoustic disturbance could have fitness-level consequences if nest tending behavior is altered. This study explored the effects of motorboat noise on the parental behavior of nesting male smallmouth bass (Micropterus dolomieu; Lacépède, 1802), an important freshwater game fish in North America that provides...

Concatenated DNA matrix and BEAST tree used for phylogenetic, dating, biogeographic and diversification analyses of Caribbean Podocarpus

María Esther Nieto-Blázquez
Aim The Progression Rule, that older lineages inhabit older islands and colonize newer ones as they emerge, has seldom been tested in the Caribbean due to its geological complexity. Here we use the conifer genus Podocarpus to explore this hypothesis. We infer the evolutionary history, biogeography, and diversification rates of this genus under a hypothesis testing framework. Location The Caribbean archipelago (Antilles) Methods We present the most comprehensive sampling for Caribbean Podocarpus to date in...

Data from: Bobbing and fin-flicking in a small benthic fish

Matteo Santon, Felix Deiss, Bitton Pierre-Paul & Nico K. Michiels
Most anti-predator strategies increase survival of individuals by signalling to predators, by reducing the chances of being recognised as prey, or by bewildering a predator's perception. In fish, bobbing and fin-flicking are commonly considered as pursuit‑deterrent behaviours that signal a predator that it has been detected and thus lost its surprise-attack advantage. Yet, very few studies assessed whether such behavioural traits are restricted to the visual presence of a predator. In this study, we used...

The role of Glutaredoxin-2 in the modulation of mitochondrial bioenergetics in female mice fed a high-fat diet

Our group recently observed that male mice containing a deletion for the gene encoding the thiol oxidoreductase glutaredoxin-2 (GRX2) were protected from diet-induced obesity (DIO) and the development of related disorders (e.g. fatty liver disease). This effect was associated with increased fuel combustion in muscles. In the present study, I assessed if deleting the Grx2 gene protected female mice from DIO. Unlike male mice, in this study female wild-type (WT) littermates were completely resistant to...

Scalable feature selection methods by augmenting sparse lease squares

Feature selection has been used widely for selecting a subset of genes (features) from microarray datasets, which help discriminate healthy samples from those with a particular disease. However, most feature selection methods suffer from high computational complexity when applied to these datasets due to the large number of genes present. Usually, a small subset of these genes have a contributing factor to the disease, and the rest of the genes are irrelevant to the condition....

Characterization of CG34126: the Drosophila melanogaster homologue of a novel Parkinson Disease gene

Parkinson Disease (PD) is a progressive and debilitating neurodegenerative disease characterized by the inadequate function or the loss of dopamine-producing neurons in the human midbrain. PD has a complex etiology including aberrant protein inclusion, mitochondrial dysfunction, oxidative stress, and defects in protein trafficking, which may occur due to genetic or non-genetic factors. Recently identified PD causative genes can be evaluated in model organisms, through which pathophysiological interactions with previously discovered PD genes may be determined....

The role of mining in community sustainability in Newfoundland and policy implications: a case study of Baie Verte

The island of Newfoundland is very important to the Canadian mining industry. It houses some of Newfoundland and Labrador’s (NL) major mining operations and exploration activities. Commercial mining, which began in 1864 on the island, has historically impacted the sustainability of communities. Using a mixed methods case study approach, the study first employed a three capitals sustainability assessment model, the ‘Telos framework’, to assess the current state of community sustainability in the Town of Baie...

Forestry innovation in western Newfoundland: Lyocell and diversification at Corner Brook pulp and paper limited

The past decades have seen a decline in the production and export of both pulp and newsprint partly due to technological substitutions such as digital newspaper subscriptions and newspaper (media) apps. The potential development of a new bio-based product (lyocell pulp fluff) at Corner Brook Pulp and Paper Limited (CBPPL) is one way to build a new bio-based industry in western Newfoundland. Since its inception in 1972, Lyocell (a cellulose fiber) has been used for...

The palaeontology of Ediacaran Avalonia: new insights using morphometrics and multivariate statistical analyses

The Avalonian Ediacaran fossil assemblage of Newfoundland, Canada contains abundant fossils with a wide range of morphologies and preservational styles. Quantitative morphological and statistical analysis in Ediacaran fossil assemblages has recently been used to recognize natural morphological groupings, providing evidence for variability within and between taxa. This approach is first used herein to test the grouping of the serially arranged, millimeterscale chambered organism known as Palaeopascichnus. The combined morphometric and statistical analytical approach was applied...

he combined effect of hypoxia and cold on substrate metabolism in men at rest

This study was designed to examine the acute metabolic response of men to the combined exposure to cold and hypoxia at rest. As the individual effects of both conditions have been extensively studied, our research focused on their combined effects in an effort to develop a better understanding of a lesser known topic. Eight participants (age:28.9±11.8 y; weight:80.7±11.5 kg; height:175.8±0.067 m; BMI:29±11 kg∙m⁻²) were recruited to participate in three experimental sessions for two hours on...

Long range transport of polybrominated diphenyl ethers (PBDEs) and their natural analogues determined through size-resolved aerosols, and levels in Atlantic Ocean fish from Newfoundland coasts.

Conventional flame retardants of polybrominated diphenyl ethers (PBDEs) are harmful endocrine disrupters that may endure in the environment and experience long range transport (LRT) to areas far from their sources. Despite a gradual phasing out of PBDEs as flame retardants by the Stockholm Convention and other legislation, humans and the environment are still exposed. Recently, natural methoxy and hydroxyl analogues of PBDEs, MeO-BDEs and OH-BDEs, have been discovered in marine environments and are seasonally associated...

Registration Year

  • 2020
    103

Resource Types

  • Text
    85
  • Dataset
    18

Affiliations

  • Memorial University of Newfoundland
    103
  • Fisheries and Oceans Canada
    4
  • University of Guelph
    3
  • Université Laval
    3
  • Wilfrid Laurier University
    2
  • University of Saskatchewan
    2
  • Royal Netherlands Institute for Sea Research
    2
  • Auckland University of Technology
    2
  • Northern Arizona University
    2
  • Ontario Ministry of Natural Resources
    2