scholarly journals Case studies in physiology: Impact of a long‐distance hike on the Pacific Crest Trail on arterial function and body composition in a highly fit young male

2021 ◽  
Vol 9 (5) ◽  
Author(s):  
Thomas C. Heinbockel ◽  
Daniel H. Craighead
Keyword(s):  
Body Composition ◽  
Case Studies ◽  
Young Male ◽  
Long Distance ◽  
Arterial Function ◽  
The Pacific

Systematics, Biogeography, and Morphological Character Evolution of the Hemiepiphytic Subfamily Monsteroideae (Araceae)

2019 ◽  
Vol 104 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Alejandro Zuluaga ◽  
Martin Llano ◽  
Ken Cameron
Keyword(s):  
Dna Sequences ◽  
Pacific Islands ◽  
R Package ◽  
Morphological Characters ◽  
Ancestral State ◽  
Seed Shape ◽  
Long Distance ◽  
The Pacific ◽  
And Migration ◽  
The Tropics

The subfamily Monsteroideae (Araceae) is the third richest clade in the family, with ca. 369 described species and ca. 700 estimated. It comprises mostly hemiepiphytic or epiphytic plants restricted to the tropics, with three intercontinental disjunctions. Using a dataset representing all 12 genera in Monsteroideae (126 taxa), and five plastid and two nuclear markers, we studied the systematics and historical biogeography of the group. We found high support for the monophyly of the three major clades (Spathiphylleae sister to Heteropsis Kunth and Rhaphidophora Hassk. clades), and for six of the genera within Monsteroideae. However, we found low rates of variation in the DNA sequences used and a lack of molecular markers suitable for species-level phylogenies in the group. We also performed ancestral state reconstruction of some morphological characters traditionally used for genera delimitation. Only seed shape and size, number of seeds, number of locules, and presence of endosperm showed utility in the classification of genera in Monsteroideae. We estimated ancestral ranges using a dispersal-extinction-cladogenesis model as implemented in the R package BioGeoBEARS and found evidence for a Gondwanan origin of the clade. One tropical disjunction (Monstera Adans. sister to Amydrium Schott–Epipremnum Schott) was found to be the product of a previous Boreotropical distribution. Two other disjunctions are more recent and likely due to long-distance dispersal: Spathiphyllum Schott (with Holochlamys Engl. nested within) represents a dispersal from South America to the Pacific Islands in Southeast Asia, and Rhaphidophora represents a dispersal from Asia to Africa. Future studies based on stronger phylogenetic reconstructions and complete morphological datasets are needed to explore the details of speciation and migration within and among areas in Asia.

scholarly journals Multilingualism in Vanuatu: Four case studies

2021 ◽  
pp. 136700692110231
Author(s):  
Mary Walworth ◽  
Amy Dewar ◽  
Thomas Ennever ◽  
Lana Takau ◽  
Iveth Rodriguez
Keyword(s):  
Case Studies ◽  
Primary Data ◽  
Small Scale ◽  
Language History ◽  
Speech Communities ◽  
The Pacific ◽  
Historical Processes ◽  
The Social ◽  
Original Contribution ◽  
B Mobility

Each of the 65 inhabited islands of Vanuatu hosts its own unique linguistic environment in which varying degrees of multilingualism are found. This paper defines various types of small-scale multilingual settings in Vanuatu and explores what sociohistorical factors have led to them. This paper is based on first-hand observations and primary data collected by the authors in four locations in the Pacific Island nation of Vanuatu since 2016: two neighboring villages of Emae Island (Makatu and Tongamea), North Malekula, and on Maewo Island. The assessments of multilingualism in these examples from Vanuatu were qualitative, based on observations of sociolinguistic practices in each of these areas, as well as data from language history and language use surveys carried out in each place. Through defining and comparing the types of multilingualism present in the four case studies, we identify patterns in the social and historical processes that lead to various kinds of multilingualism: (a) interaction of linguistic and sociocultural identities and (b) mobility of both individuals and entire speech communities. The examples described in this paper are used to highlight the diversity of multilingualism found in Vanuatu and to explore how their differing linguistic environments and histories have contributed to their varying degrees of multilingualism. This paper makes an original contribution to knowledge about the small-scale multilingual situations in Vanuatu, offering descriptions of previously undocumented and endangered multilingual environments. Through an examination of the sociocultural motivations for multilingualism, alongside historical migrations of speaker groups and marked sociolinguistic identities, this paper contributes to research on why and how small-scale multilingualism can develop. Furthermore, this paper provides the foundation for future, more rigorous investigations into the small-scale multilingual situations of this highly understudied region.

scholarly journals Global phylogeography of a pantropical mangrove genus Rhizophora

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Koji Takayama ◽  
Yoichi Tateishi ◽  
Tadashi Kajita
Keyword(s):  
Phylogenetic Trees ◽  
Nuclear Dna ◽  
Divergence Time ◽  
Long Distance ◽  
F1 Hybrid ◽  
The Pacific ◽  
Comprehensive Picture ◽  
Dated Phylogeny ◽  
Stochastic Mapping ◽  
Historical Scenario

AbstractRhizophora is a key genus for revealing the formation process of the pantropical distribution of mangroves. In this study, in order to fully understand the historical scenario of Rhizophora that achieved pantropical distribution, we conducted phylogeographic analyses based on nucleotide sequences of chloroplast and nuclear DNA as well as microsatellites for samples collected worldwide. Phylogenetic trees suggested the monophyly of each AEP and IWP lineages respectively except for R. samoensis and R. × selala. The divergence time between the two lineages was 10.6 million years ago on a dated phylogeny, and biogeographic stochastic mapping analyses supported these lineages separated following a vicariant event. These data suggested that the closure of the Tethys Seaway and the reduction in mangrove distribution followed by Mid-Miocene cooling were key factors that caused the linage diversification. Phylogeographic analyses also suggested the formation of the distinctive genetic structure at the AEP region across the American continents around Pliocene. Furthermore, long-distance trans-pacific dispersal occurred from the Pacific coast of American continents to the South Pacific and formed F1 hybrid, resulting in gene exchange between the IWP and AEP lineages after 11 million years of isolation. Considering the phylogeny and phylogeography with divergence time, a comprehensive picture of the historical scenario behind the pantropical distribution of Rhizophora is updated.

scholarly journals Analysis of the Impact of a Multi-Strain Probiotic on Body Composition and Cardiorespiratory Fitness in Long-Distance Runners

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3758
Author(s):  
Joanna Smarkusz-Zarzecka ◽  
Lucyna Ostrowska ◽  
Joanna Leszczyńska ◽  
Karolina Orywal ◽  
Urszula Cwalina ◽  
...  
Keyword(s):  
Body Composition ◽  
Cardiorespiratory Fitness ◽  
The Body ◽  
Double Blind Study ◽  
Distance Runners ◽  
Long Distance ◽  
Double Blind ◽  
Necrosis Factor Alpha ◽  
Total Body ◽  
The Impact

Use of probiotic supplements, the benefits of which have not been proven in sportspeople, is becoming more widespread among runners. The aim of this study was to evaluate the effect of a multi-strain probiotic on body composition, cardiorespiratory fitness and inflammation in the body. The randomised, double-blind study included 66 long-distance runners. The intervention factor was a multi-strain probiotic or placebo. At the initial and final stages of the study, evaluation of body composition and cardiorespiratory fitness was performed and the presence of inflammation determined. In the group of men using the probiotic, an increase in lean body mass (p = 0.019) and skeletal muscle mass (p = 0.022) was demonstrated, while in the group of women taking the probiotic, a decrease in the content of total body fat (p = 0.600) and visceral fat (p = 0.247) was observed. Maximum oxygen consumption (VO2max) increased in women (p = 0.140) and men (p = 0.017) using the probiotic. Concentration of tumour necrosis factor-alpha decreased in women (p = 0.003) and men (p = 0.001) using the probiotic and in women (p = 0.074) and men (p = 0.016) using the placebo. Probiotic therapy had a positive effect on selected parameters of body composition and cardiorespiratory fitness of study participants and showed a tendency to reduce inflammation.

Asleep at the Wheel: Spatial and Temporal Patterns of Fatigue-Related Crashes in Honolulu

2001 ◽  
Vol 1779 (1) ◽  
pp. 46-53 ◽  
Author(s):  
Karl E. Kim ◽  
Eric Y. Yamashita
Keyword(s):  
Evaluation System ◽  
Outcome Data ◽  
Spatial And Temporal Patterns ◽  
Long Distance ◽  
Crash Data ◽  
Island State ◽  
The Pacific ◽  
Limited Opportunity ◽  
The Pacific Ocean ◽  
Injury Outcomes

As an island state located in the middle of the Pacific Ocean, where there is limited opportunity for long-distance driving, Hawaii provides an interesting context in which to study fatigue-related crashes. Data from the Hawaii Crash Outcome Data Evaluation System are used to analyze and map fatigue-related collisions. Injury outcomes of fatigue-related crashes are analyzed by using police crash data, emergency medical service records, and insurance claims records. There are distinct temporal and spatial patterns as well as relationships between fatigue-related crashes and driver characteristics. Recommendations for preventing fatigue-related crashes are developed. Roadway segments where fatigue-related crashes occur are identified as possible sites for various engineering treatments. Temporal and demographic information also can be used to design and implement more effective programs and systems for fatigue-related crashes.

Human Rights as Land Rights in the Pacific

1993 ◽  
Vol 6 (1) ◽  
pp. 61-80 ◽  
Author(s):  
John D'Arcy May
Keyword(s):  
Human Rights ◽  
Case Studies ◽  
Papua New Guinea ◽  
Land Rights ◽  
Human Community ◽  
The Earth ◽  
The Pacific ◽  
West Papua ◽  
The Matrix ◽  
The One

Do human rights in their conventional, Western understanding really meet the needs of Pacific peoples? This article argues that land rights are a better clue to those needs. In Aboriginal Australia, Fiji, West Papua and Papua New Guinea, case studies show that people's relationship to land is religious and implicitly theological. The article therefore suggests that rights to land need to be supplemented by rights of the land extending to the earth as the home of the one human community and nature as the matrix of all life.

scholarly journals Chance long-distance or human-mediated dispersal? How Acacia s.l. farnesiana attained its pan-tropical distribution

2017 ◽  
Vol 4 (4) ◽  
pp. 170105 ◽  
Author(s):  
Karen L. Bell ◽  
Haripriya Rangan ◽  
Manuel M. Fernandes ◽  
Christian A. Kull ◽  
Daniel J. Murphy
Keyword(s):  
The Philippines ◽  
Historical Sources ◽  
Long Distance ◽  
Old World ◽  
South Central ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Spanish Explorers ◽  
The Tropics ◽  
Old World Tropics

Acacia s.l. farnesiana , which originates from Mesoamerica, is the most widely distributed Acacia s.l. species across the tropics. It is assumed that the plant was transferred across the Atlantic to southern Europe by Spanish explorers, and then spread across the Old World tropics through a combination of chance long-distance and human-mediated dispersal. Our study uses genetic analysis and information from historical sources to test the relative roles of chance and human-mediated dispersal in its distribution. The results confirm the Mesoamerican origins of the plant and show three patterns of human-mediated dispersal. Samples from Spain showed greater genetic diversity than those from other Old World tropics, suggesting more instances of transatlantic introductions from the Americas to that country than to other parts of Africa and Asia. Individuals from the Philippines matched a population from South Central Mexico and were likely to have been direct, trans-Pacific introductions. Australian samples were genetically unique, indicating that the arrival of the species in the continent was independent of these European colonial activities. This suggests the possibility of pre-European human-mediated dispersal across the Pacific Ocean. These significant findings raise new questions for biogeographic studies that assume chance or transoceanic dispersal for disjunct plant distributions.

Thermochronology quantifying exhumation history of the Wudang Complex in the South Qinling Orogenic Belt, central China

2016 ◽  
Vol 155 (4) ◽  
pp. 893-906 ◽  
Author(s):  
CHUANBO SHEN ◽  
DI HU ◽  
CHUN SHAO ◽  
LIANFU MEI
Keyword(s):  
Distance Effect ◽  
Central China ◽  
The Tibetan Plateau ◽  
Yangtze Craton ◽  
Long Distance ◽  
South Qinling ◽  
The North ◽  
The Pacific ◽  
History Of ◽  
Exhumation History

AbstractThe Wudang Complex located in the central part of South Qinling, has been inferred to be a segment of the Yangtze Craton involved in the orogen. In this study, the cooling/exhumation history of the Wudang Complex is revealed through combined published geochronology data and new apatite fission-track results. Three rapid exhumation episodes related to relevant geodynamic events have been identified. Previous40Ar–39Ar and (U–Th)/He data indicate that the most significant exhumation, induced by the collision between the North and South China Blocks, occurred fromc.237 to 220 Ma after long-term subsidence and sedimentation of the passive continental margin. The second exhumation event, related to the long-distance effect of the Pacific subduction, occurred during the period fromc.126 to 90 Ma. Following the late Cretaceous – Eocene peneplanation stage, the final late Cenozoic exhumation sincec.15 Ma may be attributed to the combined effect of the eastward growth of the Tibetan Plateau uplift and the Asian monsoon.

Effects of Individualized Versus Traditional Power Training on Strength, Power, Jump Performances, and Body Composition in Young Male Nordic Athletes

2021 ◽  
pp. 1-8
Author(s):  
Olaf Prieske ◽  
Helmi Chaabene ◽  
Niclas Kullmann ◽  
Urs Granacher
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Young Male ◽  
Drop Jump ◽  
Power Training ◽  
Strength Index ◽  
Jump Performance ◽  
Back Squat ◽  
Main Effects ◽  
Regular Training

Purpose: This study aimed to examine the effects of individualized-load power training (IPT) versus traditional moderate-load power training (TPT) on strength, power, jump performance, and body composition in elite young Nordic athletes. Methods: In a randomized crossover design, 10 young male athletes (ski jumpers, Nordic combined athletes) age 17.5 (0.6) years (biological maturity status: +3.5 y postpeak height velocity) who competed on a national or international level performed 5 weeks of IPT (4 × 5 repetitions at 49%–72% 1-repetiton maximum [RM]) and TPT (5 × 5 repetitions at 50%–60% 1-RM) in addition to their regular training. Testing before, between, and after both training blocks comprised the assessment of muscle strength (loaded back squat 3-RM), power (maximal loaded back squat power), jump performance (eg, drop-jump height, reactive strength index), and body composition (eg, skeletal muscle mass). Results: Significant, large-size main effects for time were found for muscle strength (P < .01; g = 2.7), reactive strength index (P = .03; g = 1.6), and drop-jump height (P = .02; g = 1.9) irrespective of the training condition (IPT, TPT). No significant time-by-condition interactions were observed. For measures of body composition, no significant main effects of condition and time or time-by-condition interactions were found. Conclusions: Our findings demonstrate that short-term IPT and TPT at moderate loads in addition to regular training were equally effective in improving measures of muscle strength (loaded back squat 3-RM) and vertical-jump performance (reactive strength index, drop jump, and height) in young Nordic athletes.

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