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"Icebergs Utilization"
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Chasing icebergs : how frozen freshwater can save the planet
\"Harvesting icebergs for drinking water is not a new idea. But for the first time in human history, doing so on a massive global scale is both increasingly feasible and necessary for our survival. Chasing Icebergs delivers a kaleidoscopic history of humans' relationship with icebergs, and offers an urgent assessment of the technological, cultural, and legal obstacles we must overcome to harness this freshwater resource\"-- Provided by publisher.
Book
Polar Ice as an Unconventional Water Resource: Opportunities and Challenges
Global water resources are under pressure due to increasing population and diminishing conventional water resources caused by global warming. Water scarcity is a daunting global problem which has prompted efforts to find unconventional resources as an appealing substitute for conventional water, particularly in arid and semiarid regions. Ice is one such unconventional water resource, which is available mainly in the Arctic and Antarctic. In this study, opportunities and challenges in iceberg utilization as a source of freshwater were investigated on the basis of a systematic literature review (SLR). A search in three databases (Scopus, Web of Science, and ProQuest) yielded 47 separate studies from 1974 to 2019. The SLR indicated that harvesting iceberg water, one of the purest sources of water, offers benefits ranging from supplying freshwater and creating new jobs to avoiding iceberg damage to offshore structures. Economic considerations and risks associated with iceberg towing were identified as the main limitations to iceberg harvesting, while environmental impacts were identified as the main challenge to exploiting this resource. Assessment of trends in ice sheets in Arctic and Antarctic across different spatiotemporal scales indicated that the main sources of icebergs showed a statistically significant (p < 0.01) decreasing trend for all months and seasons during 2005–2019.
Journal Article
Survival differences and the effect of environmental instability on breeding dispersal in an Adélie penguin meta-population
High survival and breeding philopatry was previously confirmed for the Adélie penguin (Pygoscelis adeliae) during a period of stable environmental conditions. However, movements of breeding adults as a result of an unplanned natural experiment within a four-colony meta-population provided interesting insights into this species' population dynamics. We used multistate mark-recapture models to investigate apparent survival and dispersal of breeding birds in the southwestern Ross Sea during 12 breeding seasons (1996-2007). The natural experiment was facilitated by the temporary grounding of two immense icebergs that (i) erected a veritable fence separating colonies and altering migration routes and (ii) added additional stress by trapping extensive sea ice in the region during 5 of 12 y. Colony size varied by orders of magnitude, allowing investigation of apparent survival and dispersal rates in relation to both environmental conditions and colony size within this meta-population. Apparent survival was lowest for the smallest colony (4,000 pairs) and similar for the medium (45,000 pairs) and large colonies (155,000 pairs), despite increased foraging effort expended by breeders at the largest colony. Dispersal of breeding birds was low (<1%), except during years of difficult environmental conditions when movements increased, especially away from the smallest colony (3.5%). Decreased apparent survival at the smallest colony could reflect differences in migration chronology and winter habitat use compared with the other colonies, or it may reflect increased permanent emigration to colonies outside this meta-population. Contrary to current thought, breeding penguins are not always philopatric. Rather, stressful conditions can significantly increase dispersal rates.
Journal Article
Understanding the business versus care paradox in gambling venues: a qualitative study of the perspectives from gamblers, venue staff and counsellors
Background
In recent years, greater emphasis has been placed on gambling venues to identify potential problem gamblers, respond appropriately and refer to treatment. In seeking the perspectives of problem gamblers, venue staff and treatment providers, this qualitative study investigates how problem gamblers experience being identified and referred for treatment by venue staff.
Methods
A semi-structured interview guide focusing on experiences and perceptions of problem gambling identification and referral for treatment in gaming venues was used to conduct 4 focus groups and 9 semi-structured in-depth interviews. Participants comprised 22 problem gamblers, 10 gambling venue staff and 8 problem gambling counsellors. Audio recordings were transcribed verbatim, and an interpretive phenomenological analysis was conducted.
Results
‘Role conflict’ was identified as a considerable source of stress for venue staff who described conflicting priorities in responding to problem gamblers whilst maintaining employer profit margins. Problem gamblers described offers of help from venue staff as hypocritical and disingenuous. Venue staff also described reluctance to make moral judgements through the identification of and engagement with problem gamblers, and gamblers described resentment in being singled out and targeted as a problem gambler. Being approached and offered referral to a counselling service was a rare occurrence among problem gamblers. This corresponded with reports by gambling counsellors.
Conclusions
Role conflict experienced by gambling venue staff and patrons alike inhibits effective referral of potential problem gamblers into treatment. Reducing the need for gambling venue staff to make a perceived moral judgement about the gambling behaviours of specific patrons may improve the reception of responsible gambling information and promote help-seeking.
Journal Article
North America's Galapagos
North America’s Galapagos: The Historic Channel Islands Biological Survey recounts the story of a group of researchers, naturalists, adventurers, cooks, immigrants, and scientifically curious teenagers who came together in the late 1930s to embark upon a series of ambitious expeditions never before, or since, attempted. Their mission: to piece together the broken shards of the Channel Islands’ history and evolution. California’s eight Channel Islands, sometimes called “North America’s Galapagos,” each support unique ecosystems with varied flora and fauna and differing human histories. The thirty-three men and women who set out to explore the islands hoped to make numerous discoveries that would go down in history along with their names. More than eighty years ago, a lack of funds and dearth of qualified personnel dogged the pre-WWII expeditions, but it was only after America entered the war and the researchers were stranded on one of the islands that the survey was aborted, their work left for future scientists to complete. This untold saga of adventure, discovery, and goals abandoned is juxtaposed against the fresh successes of a new generation of Channel Island scholars. Engagingly written,
North America’s Galapagos illuminates the scientific process and reveals remarkable modern discoveries that are rewriting archaeological textbooks and unraveling the answer to the age-old question: how and when were the Americas populated? Anyone interested in the work conducted behind closed museum doors will want to read this book—so will history buffs, environmentalists, scientists, and general readers curious about our world. Visit the author's website: https://www.channelislandscalifornia.com/
eBook
Exploring the Iceberg: Common Symptoms and How People Care for Them
Despite the importance of daily symptoms for people's quality of living, they are seldom studied (thus, the \"iceberg of morbidity\"). We begin by reviewing United States and British studies that have information on daily symptoms experienced by adults. The most common ones are respiratory (largely from colds) and musculoskeletal (largely from arthritis, injury, overexertion). Using health diaries kept for 6 weeks by a population-based sample of adults, we report the frequency of respiratory and musculoskeletal symptoms, their specific types and causes, and what factors urge people to take therapeutic actions for them. The most popular action for both is prescription or nonprescription drugs, followed by lay consultation, then restricted activity, and lastly seeking medical care. On Respiratory Days, how miserable a person feels is the main stimulus to action; other morbidity aspects of the day also rank high. Sociodemographic groups scarcely differ in their responses to respiratory symptoms. The situation is similar for Musculoskeletal Nondisease Days (injury/overexertion). But for Musculoskeletal Disease Days (arthritis), sociodemographic characteristics figure more strongly in care, and the day's degree of morbidity less. These results signal basic differences in how people approach chronic and acute health problems: For chronic ones, they devise strategies of care (determined partly by their roles, attitudes, and resources) over months and years, and apply them during flare-ups. For acute problems, decisions about care are made in the short run and hinge mostly on symptoms. Our analysis also considers how actions complement or substitute for each other: Self-care actions (nonprescription drug use and restricted activity) tend to co-occur, and so do actions based on medical care (prescription drug use and medical contact). The two domains substitute in one way (nonprescription drug use greatly reduces chances of prescription drug use) and join in another (restricted activity increases chances of medical contact).
Journal Article
A Social Indicator of Access to Medical Care
This study introduces a social indicator of access to medical care-the symptoms-response ratio-that reflects the difference between the number of visits in response to symptoms that actually occur and the number that a panel of physicians indicate is appropriate for these same symptoms. Findings on the index for a national sample of the United States population affirm differentials in access that are generally thought to exist in terms of other access indicators (conventional use measures, insurance coverage, etc.). Nonwhites, rural farm people, the poor, and those who have no usual place to go for medical care were found to have less access to care than would be judged appropriate, based on the symptoms-response index. The index also suggests possible \"over-utilization\" among certain groups such as children and people who see specialists as their regular source of care.
Journal Article
Articulate Brachiopod Food
New evidence suggests that the mode of feeding of articulate brachiopods may be the same as that of ciliary suspension feeders, such as bivalve mollusks, but may vary according to the abundance of food or according to depth. Gut contents of four genera of articulate brachiopods and two genera of bivalve mollusks from both shallow (8-13 m) and deeper (100-120 m) areas were analyzed for relative proportions of inorganic versus organic particulate matter. Although the relative proportion of inorganic versus organic particulates varied between depths, it remained essentially identical for both the articulate brachiopods and bivalves at any given depth, indicating a similarity in their mode of feeding.
Journal Article