Changes in affect from mid-intensity exercise Sul, Sooyoung; Moon, Hwasil
Journal of inclusion phenomena and macrocyclic chemistry,
12/2021, Volume:
101, Issue:
3-4
Journal Article
Peer reviewed
Making exercise more emotionally rewarding, which is related to the secretion of chemicals like cortisol and serotonin, can be an important way to increase people's continued propensity to exercise ...regularly, ultimately promoting better public health. This study used a four quadrant circumplex model to understand participants' emotional states during mid-intensity exercise. The study found that participants who exercised with partners and those who exercised solo had different levels of affective valence at different times before, during and after exercise. Solo participants experienced the greatest improvement in affective valence (affect) well after exercise had concluded, while partnered participants experienced the greatest improvement in affective valence during exercise. Solo participants also experienced greater strenuousness (activation) than partnered participants. Both solo and partnered participants experienced improvement in affect vis-à-vis persons who did not exercise at all, indicating that mid-intensity exercise induces positive feelings. The results indicate that the increased perception of sociality through partnered exercise increases positive emotions and decreases fatigue, presenting significant implications for development of programs to encourage regular exercise.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
We evaluated the antibiotic susceptibilities, hemolytic activities, and technological properties of 36 Staphylococcus xylosus strains and 49 S. pseudoxylosus strains predominantly isolated from ...fermented soybean foods from Korea. Most of the strains were sensitive to chloramphenicol, erythromycin, gentamycin, kanamycin, lincomycin, oxacillin, tetracycline, and trimethoprim. However, 23 strains exhibited potential phenotypic acquired resistance to erythromycin, lincomycin, and tetracycline. Based on breakpoint values for staphylococci from the Clinical and Laboratory Standards Institute, >30% of the isolates were resistant to ampicillin and penicillin G, but the population distributions in minimum inhibitory concentration tests were clearly different from those expected for acquired resistance. None of the strains exhibited clear α- or β-hemolytic activity. S. xylosus and S. pseudoxylosus exhibited salt tolerance on agar medium containing 20% and 22% (w/v) NaCl, respectively. S. xylosus and S. pseudoxylosus strains possessed protease and lipase activities, which were affected by the NaCl concentration. Protease activity of S. pseudoxylosus was strain-specific, but lipase activity might be a characteristic of both species. This study confirms the potential of both species for use in high-salt soybean fermentation, but the safety and technological properties of strains must be determined to select suitable starter candidates.
Do close-call games attract more fans? Sul, Sooyoung
Journal of inclusion phenomena and macrocyclic chemistry,
15/8, Volume:
94, Issue:
3-4
Journal Article
Peer reviewed
The idea of “competitive balance,” i.e. the idea that sports leagues need uncertainty in the outcomes of their games to attract fans, is widely accepted. However, there are cases where the effects of ...hormones and neurotransmitters (including cortisol, testosterone and dopamine) will likely counteract the effects of competitive balance. This paper explored the validity of competitive balance and its effect on the number of spectators at sports games using quantitative analyses, along with consideration of other social, economic, and demographic factors. In contrast to previous observations, the concept of competitive balance was only partially confirmed as attracting large numbers of fans to Korean professional baseball league.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
In the original publication of the article, the department information of the author was published incorrectly. It has been updated in this correction.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
This study aims to quantitatively analyze which variables are critical in determining the level of Internet game addiction (IGA) among the Korean adolescents and investigate the role of family ...leisure as therapy with interdisciplinary perspectives. The results indicate that some personal and household characteristics, including gender, are significant determinants of the level of IGA, where male adolescents, compared to their female counterparts, are proven to be more prone to the addiction. Nevertheless, a substantial portion of the variation in the level of addiction is not explained by personal or household variables, which implies the importance of adopting interdisciplinary approach such as focusing on the dopamine reward system as intensively investigated in the fields including neurobiology, medicine and psychology. The result also shows that the role of family leisure programs deserves more attention. In cases where the adolescents do participate in leisure activities with their family, the level of IGA seems to decrease, compared to those who do not. This quantitative finding is consistent with the previous findings that exercise and social contact encourage the functions of dopamine receptors, implying the usefulness of the interdisciplinary approaches to deal with IGA problems.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Abstract
We assessed the salt tolerance and proteolytic activity of 40 genome-published Bacillus subtilis strains isolated from fermented Korean foods to illuminate the genomic background behind the ...functionality of B. subtilis in high-salt fermentation. On the basis of the salt tolerance and phenotypic proteolytic activity of the 40 strains, we selected five strains exhibiting different phenotypic characteristics. Comparative genomic analyses of these five strains provided genomic insight into the salt tolerance and proteolytic activity of B. subtilis. Two-component system (TCS) genes annotated as ybdGJK and laterally acquired authentic ATP-binding cassette (ABC) transporter system genes of tandem repeat structure might contribute to increase salt tolerance. The additional possession of gene homologs for CAAX protease family proteins and components of Clp (caseinolytic protease) complex, ATP-dependent Clp proteolytic subunit ClpP and AAA+ (ATPases associated with diverse cellular Activities) family ATPases, might determine the proteolytic activity of B. subtilis. This study established the scientific foundation for the viability and functionality of B. subtilis in high-salt fermentation.
Two-component system and ABC transporter system can contribute to increase the salt tolerance of Bacillus subtilis; the gene homologs for CAAX protease family proteins and Clp complex may determine its proteolytic activity.
We evaluated the antibiotic susceptibilities, hemolytic activities, and technological properties of 36
strains and 49
strains predominantly isolated from fermented soybean foods from Korea. Most of ...the strains were sensitive to chloramphenicol, erythromycin, gentamycin, kanamycin, lincomycin, oxacillin, tetracycline, and trimethoprim. However, 23 strains exhibited potential phenotypic acquired resistance to erythromycin, lincomycin, and tetracycline. Based on breakpoint values for staphylococci from the Clinical and Laboratory Standards Institute, >30% of the isolates were resistant to ampicillin and penicillin G, but the population distributions in minimum inhibitory concentration tests were clearly different from those expected for acquired resistance. None of the strains exhibited clear α- or β-hemolytic activity.
and
exhibited salt tolerance on agar medium containing 20% and 22% (w/v) NaCl, respectively.
and
strains possessed protease and lipase activities, which were affected by the NaCl concentration. Protease activity of
was strain-specific, but lipase activity might be a characteristic of both species. This study confirms the potential of both species for use in high-salt soybean fermentation, but the safety and technological properties of strains must be determined to select suitable starter candidates.
ABSTRACT
We evaluated the antibiotic minimum inhibitory concentrations (MICs) of 123 Bacillus velezensis strains predominantly isolated from fermented soybean foods from Korea. When the 2018 European ...Food Safety Authority breakpoint values for Bacillus spp. were applied, all the strains were sensitive to chloramphenicol, clindamycin, erythromycin, gentamicin, kanamycin, tetracycline and vancomycin, and eight strains (6.5%) were resistant to streptomycin. The population distribution in MIC tests with streptomycin was continuous and the profile was clearly different from that expected for acquired antibiotic resistance. As of 25 October 2021, there were 181 complete published genomes of B. velezensis strains; 175 (96.7%) and 136 (75.2%) of these strains, respectively, possess potential tetracycline and streptomycin resistance genes tetL and ant(6) in the chromosome. In Bacillus licheniformis, SpeG confers resistance to clindamycin and there is an ‘speG’ gene annotated in the genomes of 180 B. velezensis strains; however, the gene products exhibit ≤26.6% amino acid identity with that from B. licheniformis DSM 13T. All the potential antibiotic resistance genes in the 181 B. velezensis strains were intrinsic, and traits of lateral gene transfer were not found. In this context, B. velezensis may not present a high risk in terms of antibiotic resistance in food fermentation or human use.
Bacillus velezensis isolates from fermented soybean foods did not exhibit phenotypic acquired antibiotic resistance profiles in antibiotic minimum inhibitory concentration tests and traits of potential antibiotic resistance gene acquisition were not identified in 181 published B. velezensis genomic data.
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