Detection of human commensals in the area around an Antarctic research station

1997 ◽  
Vol 9 (2) ◽  
pp. 156-161 ◽  
Author(s):  
M. Upton ◽  
T.H. Pennington ◽  
W. Haston ◽  
K.J. Forbes
Keyword(s):  
Research Articles ◽  
Waste Materials ◽  
Research Station ◽  
Human Origin ◽  
Culture Methods ◽  
The Past ◽  
Sensitive Issue ◽  
Human Contamination ◽  
Antarctic Research ◽  
Microbial Contaminants

Human contamination of Antarctic environments is a sensitive issue and has been the focus of many research articles over the past 35 years. The majority of these studies have targeted waste materials and various hydrocarbons, with assessment of microbial contaminants being largely restricted to sewage outfalls. The present study aimed to detect bacteria of human origin in the area surrounding Halley research station. It was apparent from both molecular and culture methods that bacteria of human origin are extremely difficult to detect outside the immediate surrounding of the buildings, though recommendations are made for increasing the probability of determining the presence of organisms in the environment. The results also indicate that molecular methods are more sensitive than cultural techniques, in that the only evidence for organisms in the environment surrounding the buildings came from positive PCR reactions. PCR would appear to be a useful method for studying the microbial ecology of Antarctic environments.

International Research and Variation in Views of Ethnicity

2012 ◽  
Vol 2 (2) ◽  
pp. 66-72
Author(s):  
Ella Inglebret ◽  
Amy Skinder-Meredith ◽  
Shana Bailey ◽  
Carla Jones ◽  
Ashley France
Keyword(s):  
United States ◽  
Classification System ◽  
International Research ◽  
The United States ◽  
Research Articles ◽  
Journal Articles ◽  
Research Participants ◽  
The Past ◽  
International Scale ◽  
Publication Patterns

The authors in this article first identify the extent to which research articles published in three American Speech-Language-Hearing Association (ASHA) journals included participants, age birth to 18 years, from international backgrounds (i.e., residence outside of the United States), and go on to describe associated publication patterns over the past 12 years. These patterns then provide a context for examining variation in the conceptualization of ethnicity on an international scale. Further, the authors examine terminology and categories used by 11 countries where research participants resided. Each country uses a unique classification system. Thus, it can be expected that descriptions of the ethnic characteristics of international participants involved in research published in ASHA journal articles will widely vary.

Review on Efficacy of Herbal Antiviral Drugs against COVID-19

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1116-1121
Author(s):  
Pooja P. Thakre ◽  
Vinod Ade ◽  
Shweta Parwe
Keyword(s):  
Physical Contact ◽  
Research Articles ◽  
Herbal Drugs ◽  
Plant Origin ◽  
Respiratory Pathway ◽  
Traditional Medicines ◽  
The Past ◽  
Primary Health ◽  
Coronavirus Infection ◽  
Novel Coronavirus

Coronavirus disease (CoViD-19) is an infection of the respiratory system caused due to various viruses affects the respiratory pathway, and it can spread from one person to another by coughing, sneezing or physical contact. Commonly include cough, cold, fever are the symptoms. Viral diseases increase worldwide concern, including emerging and chronic viruses. The invention of new anti-viral drugs from plants has implicit in the past. The Coronavirus disease 19 (COVID-19) caused due to severe acute respiratory syndrome, which is a transmittable and pathogenic viral infection. Several traditional medicines of plant origin having antimicrobial and anti-inflammatory properties some have been studied for their anti-viral properties and immune-modulating effects. Herbal drugs are now in massive requirement in the developing countries for primary health care not because of their economical but also for better civilising adequacy, improved compatibility with the human body and significantly fewer side effects. This review gives an overview of some critical traditionally used medicinal herbs with anti-viral properties—the literature regarding the drugs of this group, collected from Ayurveda classics. Research articles are collected from published material and discussed per therapeutic actions. Most of the Herbs are with Katu Rasa (pungent) and Ushna Virya (hot potency). They are indicated in diseases, viz. Kasa (cough), Shwas (asthma), Krumi (worm/ infection). Krumihara property drugs which are correlated with anti-viral action helps to prevent against Novel coronavirus infection.

A systematic literature review of ‘empathy’ and ‘games’

2021 ◽  
Vol 13 (2) ◽  
pp. 195-214 ◽  
Author(s):  
Karen Schrier ◽  
Matthew Farber
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Research Articles ◽  
The Past ◽  
Different Types

Scholarship on the intersection of games and empathy is limited. However, over the past decade peer-reviewed articles have started to be published in this area. This study investigates this emerging scholarship on empathy and games to understand how researchers are describing, defining and communicating their work. For example, how are research articles about games defining empathy? From which disciplines are the researchers framing their studies? Which types of games are being used in the investigations? Forty-nine articles were found, coded and analysed by searching six different databases. For this investigation, each article was analysed based on the discipline, keyword(s) used to find the article, definition(s) of empathy used, types of games used in the article and the themes used in the article. Articles emerged from twelve different disciplines and described over thirteen different types of empathy. Findings were shared, as well as recommendations for researchers studying this area.

A Groundwater Hypothesis for the Origin of “Fire Areas” on the Northern Channel Islands, California

1986 ◽  
Vol 26 (2) ◽  
pp. 207-217 ◽  
Author(s):  
John Cushing ◽  
Adrian M. Wenner ◽  
Elmer Noble ◽  
Marla Daily
Keyword(s):  
Low Temperature ◽  
Channel Islands ◽  
Field Observations ◽  
Human Origin ◽  
X Ray Diffraction ◽  
Radiocarbon Dates ◽  
X Ray ◽  
The Past ◽  
Northern Channel Islands ◽  
In Fire

Pleistocene areas of red sediments and carbonized vegetation on the Northern Channel Islands, California, have in the past been interpreted as caused by fires of either natural or human origin. Some are associated with darkened mammoth and bird fossils, and these fossils have been considered as having been burned by early man. Reevaluation of these so-called “fire areas” indicates that the above phenomena are the result of low-temperature (≤100°C), nonheating processes occurring in groundwater. Evidence for this conclusion is derived from field observations on fossil carbonized vegetation, and the geology of the areas. Additional evidence derives from experiments on the red sediments and fossil wood, X-ray diffraction analyses, magnetic analyses, studies on the clay minerals smectite and illite, and the demonstration that fossil mammoth bone contains sufficient Fe and Mn to account for their discoloration. Much of the carbonization of vegetation probably occurred in water rather than in fire. Radiocarbon dates from the islands will probably need to be reevaluated. These data provide evidence contrary to the concept of the occurrence of significant fires, either natural or set by early man, on the Northern Channel Islands.

scholarly journals Antarctic climate change and the environment: an update

Polar Record ◽  
2013 ◽  
Vol 50 (3) ◽  
pp. 237-259 ◽  
Author(s):  
John Turner ◽  
Nicholas E. Barrand ◽  
Thomas J. Bracegirdle ◽  
Peter Convey ◽  
Dominic A. Hodgson ◽  
...  
Keyword(s):  
Climate Change ◽  
Intergovernmental Panel ◽  
Assessment Report ◽  
The Past ◽  
Key Points ◽  
Form Part ◽  
Antarctic Research ◽  
Antarctic Treaty ◽  
The Antarctic ◽  
Relevant Material

ABSTRACTWe present an update of the ‘key points’ from the Antarctic Climate Change and the Environment (ACCE) report that was published by the Scientific Committee on Antarctic Research (SCAR) in 2009. We summarise subsequent advances in knowledge concerning how the climates of the Antarctic and Southern Ocean have changed in the past, how they might change in the future, and examine the associated impacts on the marine and terrestrial biota. We also incorporate relevant material presented by SCAR to the Antarctic Treaty Consultative Meetings, and make use of emerging results that will form part of the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report.

scholarly journals Daily to intraseasonal oscillations at Antarctic research station Neumayer

2013 ◽  
Vol 26 (2) ◽  
pp. 193-204 ◽  
Author(s):  
N. Rimbu ◽  
G. Lohmann ◽  
G. König-Langlo ◽  
C. Necula ◽  
M. Ionita
Keyword(s):  
Time Series ◽  
Wind Speed ◽  
Sea Level ◽  
Intraseasonal Variability ◽  
Research Station ◽  
Sea Level Pressure ◽  
Level Pressure ◽  
Intraseasonal Oscillations ◽  
Antarctic Research ◽  
And Sea Level

AbstractHigh temporal resolution (three hours) records of temperature, wind speed and sea level pressure recorded at Antarctic research station Neumayer (70°S, 8°W) during 1982–2011 are analysed to identify oscillations from daily to intraseasonal timescales. The diurnal cycle dominates the three-hourly time series of temperature during the Antarctic summer and is almost absent during winter. In contrast, the three-hourly time series of wind speed and sea level pressure show a weak diurnal cycle. The dominant pattern of the intraseasonal variability of these quantities, which captures the out-of-phase variation of temperature and wind speed with sea level pressure, shows enhanced variability at timescales of ∼ 40 days and ∼ 80 days, respectively. Correlation and composite analysis reveal that these oscillations may be related to tropical intraseasonal oscillations via large-scale eastward propagating atmospheric circulation wave-trains. The second pattern of intraseasonal variability, which captures in-phase variations of temperature, wind and sea level pressure, shows enhanced variability at timescales of ∼ 35, ∼ 60 and ∼ 120 days. These oscillations are attributed to the Southern Annular Mode/Antarctic Oscillation (SAM/AAO) which shows enhanced variability at these timescales. We argue that intraseasonal oscillations of tropical climate and SAM/AAO are related to distinct patterns of climate variables measured at Neumayer.

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