The Relationship of Sensation Seek, Self-Determined Motivation and Exercise Participation Level in Extreme Sports Participants

2019 ◽  
Vol 30 (4) ◽  
pp. 17-30
Author(s):  
Jihoon Ahn ◽  
◽  
Yongse Kim ◽  
Sungho Kwon
Keyword(s):  
Sensation Seek ◽  
Extreme Sports ◽  
Exercise Participation ◽  
Participation Level ◽  
Relationship Of ◽  
The Relationship

Relationship of Friend/Parent Exercise Participation Levels and Adolescents’ Exercise Intention/Behavior as Moderated by Action Control

2020 ◽  
Vol 127 (2) ◽  
pp. 347-366
Author(s):  
Keunchul Lee ◽  
Kanghun Lee
Keyword(s):  
Action Control ◽  
Exercise Behavior ◽  
Exercise Participation ◽  
Korean Adolescents ◽  
Participation Level ◽  
And Behavior ◽  
Relationship Of ◽  
Exercise Intention ◽  
The Relationship

This study investigated the role of action control in the relationship between friend and parent exercise participation levels with adolescents’ exercise intention and behavior, based on the theory of planned behavior. Data were collected from 740 Korean adolescents through questionnaires that assessed the exercise participation level of these participants’ parents and friends, and the adolescent participants’ personal exercise intention, exercise behavior, action control, and exercise constraints. The results showed that the exercise participation level of friends, but not of parents, mediated the adolescents’ exercise behavior through their exercise intention. This relationship was magnified by higher levels of the adolescents’ action control.

scholarly journals Stepwise Relationship of Exercise Frequency with Serum BDNF Level among Adolescents

2020 ◽  
Author(s):  
Mahmoud Alomari ◽  
Omar F. Khabour
Keyword(s):  
Current Data ◽  
Dose Effect ◽  
Brain Health ◽  
Bdnf Level ◽  
Vigorous Exercise ◽  
Exercise Frequency ◽  
Exercise Participation ◽  
Relationship Of ◽  
The Relationship ◽  
Serum Bdnf

Introduction: Regular participation in exercise in adolescents is associated with numerous health benefits, including improved CV, metabolic, muscular, respiratory, immune, cognitive, and neurohormonal functions. Brain-derived neutrophic factor (BDNF) is essential for several body functions, particularly the neural and cognitive functions. However, the dose-effect of exercise participation on BDNF is not fully understood among adolescents. The current study examined the relationship of serum BDNF level with moderate/vigorous exercise frequency in 703 adolescents aged 13-17 years old. Methodology: ELISA was used to evaluate serum BDNF. Additionally, the SALSA questionnaire was used to obtain the weekly frequency of moderate/vigorous exercise. Results: The ANOVA revealed differences (p=0.001) in BDNF level according to running frequency. Subsequent posthoc analysis showed that BDNF was greater (p<0.05) in adolescents participating three, four, five, six, and seven versus no and one day of exercise. Furthermore, no differences (p>0.05) were found in BDNF between exercising three, four, five, six, and seven days/week. Conclusion: The current data revealed stepwise differences in BDNF between running frequencies, peaking at five days/week. These differences in BDNF seems to plateau when participating more than three days/week. The results confirm the importance of exercise for brain health and are consistent with the current recommendations for moderate/vigorous exercise frequency.

scholarly journals Iklim Komunikasi dan Partisipasi dalam Program Pertanian Perkotaan

2019 ◽  
Vol 16 (1) ◽  
pp. 1-14
Author(s):  
Nizzatul Amaliyah ◽  
Sarwititi Sarwoprasodjo
Keyword(s):  
Urban Agriculture ◽  
Qualitative Data ◽  
Individual Characteristics ◽  
Urban Farming ◽  
Communication Climate ◽  
Participation Level ◽  
Relationship Of ◽  
The Relationship ◽  
The City ◽  
Depth Interviews

Urban farming programs are considered capable of overcoming problems in the city such as food availability. Urban farming activities can be successful if people participate. This study aims to analyze the relationship of individual characteristics with participation level in urban agriculture program, analyzing climate communication relationship of KWT Dahlia Indah and KWT Nusa Indah Lestari with participation level, and to analyze the relationship of participation level in the success of urban farming program in KWT Dahlia Indah and KWT Nusa Indah Lestari. The method used in this study is a quantitative method with a questionnaire instrument and supported by qualitative data with in-depth interviews of informants and respondents using question guides. The results of this study indicate that individual characteristics are not related to the level of participation. The existing communication climate in KWT is supportive and related to the level of participation. While the level of participation has a significant relationship with the success rate of urban farming program.

scholarly journals Prevalence of Poor Sleep and Relationship of Physical Exercise with Sleep among Male Adult Exercisers

2020 ◽  
Vol 6 (2) ◽  
pp. 539-545
Author(s):  
Asif Ali ◽  
Muhammad Azam ◽  
Faisal Mehmood
Keyword(s):  
Physical Exercise ◽  
Sleep Disturbance ◽  
Exercise Intensity ◽  
Sleep Problems ◽  
Poor Sleep ◽  
Sleep Health ◽  
Exercise Frequency ◽  
Participation Level ◽  
Relationship Of ◽  
The Relationship

Physical exercise has been suggested to show beneficial effects for various diseases and also for sleep. This study aims to assess the prevalence of sleep problems, and the relationship of physical exercise with sleep health among adult male exercisers. A total of 199 randomly selected athletes (all males) took part in this study. All participants responded to a questionnaire consisted of items related to demographic information that also included sports participation level, and playing experience. Self-reported sleep quality and physical exercise were using PQSI and three items concerning exercise frequency, intensity, and duration. The analysis revealed following main findings: 1) a significant negative correlation between physical exercise and sleep medication, 2) a significantly negative relationship between sports/ exercise participation level and sleep disturbance, 3) an 3.7 average global score of PSQI in total sample, 4) Exercise frequency was negatively correlated with daytime dysfunction whereas exercise intensity was negatively correlated with sleep disturbance and sleep efficiency but positively correlated with daytime dysfunction, 5) and prevalence of poor sleep in 22 % participants. There is some possibility to suggest that exercise may improve sleep health among adult male exercisers. The increased exercise frequency more positive impact to improve sleep but the relationship between exercise intensity and sleep remains inconclusive. existence of sleep problems in athletic population essentially require further attention for reducing the prevalence of poor sleep using other approaches along with continue doing exercise for good sleep.

scholarly journals The Relationship of Community’s Participation with The Sustainability of Ecology, Sosio-Culture and Economic in Marine Ecotourism

2017 ◽  
Vol 1 (4) ◽  
pp. 509
Author(s):  
Putri Ria Utami ◽  
Rina Mardiana
Keyword(s):  
Quantitative Research ◽  
Qualitative Data ◽  
Economic Life ◽  
Survey Method ◽  
Significant Relation ◽  
Participation Level ◽  
Relationship Of ◽  
Marine Ecotourism ◽  
The Relationship ◽  
Medium Correlation

Community’s participation in marine ecotourism potential is important because people have the landscape and culture potential sale value as marine ecotourism attraction. The purpose of this study was to analyze the relation of community’s participation with sustainability of ecology, socio-culture and economic life of local communities in marine ecotourism Pahawang Island. This research was a quantitative research with survey method, supported by qualitative data. The number of samples in this study was 50 respondents, which cosists of the member participants in marine ecotourism Pahawang Island. The results showed that community’s participation level has medium correlation and significant relation to sustainability’s of ecology level and sustainability’s of socio-culture level. While, community’s participation level shows a very strong correlation and significant relation to sustainability’s of economic level. Keywords : ecology sustainability, economic, marine ecotourism, participation, socio-culture================================================== ABSTRAKPartisipasi aktif dari masyarakat dalam mengelola potensi ekowisata bahari sangat penting karena bentang alam dan potensi budaya memiliki nilai jual sebagai daya tarik ekowisata bahari. Penelitian ini bertujuan untuk menganalisis hubungan partisipasi masyarakat terhadap keberlanjutan ekologi, sosial-budaya dan ekonomi masyarakat setempat dalam ekowisata bahari Pulau Pahawang. Penelitian ini adalah penelitian kuantitatif yang menggunakan metode survey dengan didukung data kualitatif. Jumlah sampel penelitian sebanyak 50 responden yang merupakan pengelola ekowisata bahari Pulau Pahawang. Hasil penelitian menunjukkan tingkat partisipasi masyarakat terhadap tingkat keberlanjutan ekologi dan tingkat keberlanjutan sosial-budaya menunjukkan hubungan cukup dan signifikan. Sedangkan, tingkat partisipasi masyarakat memiliki hubungan kuat dan signifikan terhadap tingkat keberlanjutan ekonomi.Kata Kunci : ekonomi, ekowisata bahari, keberlanjutan ekologi, sosial-budaya, partisipasi

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

Studies on Leukemogenic and Sarcomagenic Viruses

1970 ◽  
Vol 28 ◽  
pp. 156-157
Author(s):  
Leon Dmochowski
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Morphological Properties ◽  
Mode Of Development ◽  
Relationship Of ◽  
The Relationship

Electron microscopy has proved to be an invaluable discipline in studies on the relationship of viruses to the origin of leukemia, sarcoma, and other types of tumors in animals and man. The successful cell-free transmission of leukemia and sarcoma in mice, rats, hamsters, and cats, interpreted as due to a virus or viruses, was proved to be due to a virus on the basis of electron microscope studies. These studies demonstrated that all the types of neoplasia in animals of the species examined are produced by a virus of certain characteristic morphological properties similar, if not identical, in the mode of development in all types of neoplasia in animals, as shown in Fig. 1.

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