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Parrish, Alan. "A life member of the Trevor Clay fan club". Nursing Standard 16, n.º 49 (21 de agosto de 2002): 22. http://dx.doi.org/10.7748/ns.16.49.22.s38.
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Kaur, Ravneet, Nidhi Bhatnagar y Binod Kumar Patro. "Journal Club: A Club for Medical Education!" Journal of Postgraduate Medicine, Education and Research 49, n.º 1 (2015): 43–45. http://dx.doi.org/10.5005/jp-journals-10028-1141.
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ABSTRACT Journal club (JC) is an effective and valuable tool in medical education. Critical reasoning and evidence based medicine practice are core competencies required by medical professionals. In times of today journal club offers several advan- tages, e.g. update with current literature, promote evidencebased medicine, demonstrate continuing medical education, learn critical appraisal skills and promote social interaction and debate. However, this tool remains largely underutilized. Practice of inappropriate methodology results in failure to achieve the intended outcomes. This report attempts to track the history of journal club, its types, current innovations made and role in medical education. It explores the potential utilization of this tool in times to come. How to cite this article Bhatnagar N, Kaur R, Patro BK. Journal Club: A Club for Medical Education! J Postgrad Med Edu Res 2015;49(1):43-45.
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Miloslavski, I., L. Heller-Kallai y Z. Aizenshtat. "Reactions of clay condensates with n-alkanes: comparison between clay volatiles and clay condensates". Chemical Geology 91, n.º 3 (septiembre de 1991): 287–96. http://dx.doi.org/10.1016/0009-2541(91)90005-c.
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Ayele, Shegaw y Dr Biruk Hundito. "INVESTIGATING THE PROBLEM OF FINANCIAL MANAGEMENT IN THE DEVELOPMENT OF HADIYA HOSSANA FOOTBALL CLUB". International Journal of Research Pedagogy and Technology in Education & Movement Sciences 11, n.º 04 (2022): 24–32. http://dx.doi.org/10.55968/ijems.v11i04.231.
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The purpose of this study was to investigate the problem of financial management in the development of Hadiya Hosanna football club. The study was used by the Hadiya Hosanna football club administrative staff, Hadiya Hosanna football club supporter association, Hadiya zone youth and sport office, and Hadiya Hosanna football club board. The study examined the concepts of each research question. What are the challenges of the financial management system in the development of Hadiya Hossana football club? What are the sources of financial income in Hadiya Hossana football club? To achieve this objective, a cross-sectional descriptive survey method was used in order to collect data once from five (5) administrative staff, eleven (11) Hadiya Hosanna football club supporter associations, fifteen (15) Hadiya zone youth and sport office, and eleven (11) Hadiya Hosanna football club board. A total of forty-two (42) people were included. The following sampling was selected from three (n = 3) Hadiya Hosanna football club administrative staff, seven (n = 7) Hadiya Hosanna football club supporter association, thirteen (n = 13) Hadiya zone youth and sport office, and seven (n = 7) Hadiya Hosanna football club board. The researcher used 30 respondents by using a purposive sampling technique. The data sources were primary and secondary sources. A Likert scale structured questionnaire was used to collect data from respondents. A pilot test was conducted to measure the instruments' validity and reliability, and the data was analyzed by SPSS version 25. The data secured from different sources was analyzed and interpreted using both quantitative and qualitative approaches through descriptive statements like percentage, frequency, mean and standard deviation.
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Van Broekhoven, Deborah. "‘Better than a clay club’: The organization of anti‐slavery fairs, 1835–60". Slavery & Abolition 19, n.º 1 (abril de 1998): 24–45. http://dx.doi.org/10.1080/01440399808575227.
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Pryce, Julia, Michael S. Kelly, Mary Lawinger y Anne Wildman. "Conversation Club: A Promising Practice in Youth Mentoring of Migrants and Refugees". Advances in Social Work 18, n.º 3 (18 de septiembre de 2018): 767–87. http://dx.doi.org/10.18060/21650.
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This paper evaluates Conversation Club, a Canadian after-school group mentoring intervention focusing on the expansion of the program across three separate regions of Ontario. The authors use a multiple methods design, including questionnaires (n=101), post-session process data, and qualitative interviews (n=18), to evaluate how Conversation Club impacts members’ feelings of hope, belonging, sense of ethnic identity, and social support. A focus group (n = 7) with program facilitators was also conducted to explore the process of dissemination of the Club across regions. Findings suggest that Conversation Club holds promise for newcomer youth across settings. Quantitative data showed significant change (p <.01) in levels of hope and sense of belonging. Interviews revealed an increased sense of belonging, possibility, and social support, as well as improved confidence in communicating with others. Insights regarding use of the Club manual suggest the importance of integrating Conversation Club values with flexibility in facilitation to incorporate the strengths and opportunities of context across regions. Study limitations, as well as implications for further social work research and dissemination of best practices in services for migrant and refugee youth, are discussed.
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Tredway, L. P. "First Report of Summer Patch of Creeping Bentgrass Caused by Magnaporthe poae in North Carolina". Plant Disease 89, n.º 2 (febrero de 2005): 204. http://dx.doi.org/10.1094/pd-89-0204a.
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An unknown disease was observed in June 2002 and 2003 on creeping bentgrass (CRB [Agrostis stolonifera L.]) putting greens at The Country Club of Landfall in Wilmington, NC that were established in 2001 with a 1:1 blend of cvs. A-1 and A-4. Soil pH ranged from 7 to 8 at this location because of poor quality irrigation water. Symptoms appeared in circular patches of 0.3 to 1 m in diameter that exhibited signs of wilt followed by chlorosis and orange foliar dieback. The disease was initially diagnosed as take-all patch caused by Gaeumannomyces graminis (Sacc.) Arx & D. Olivier var. avenae (E.M. Turner) Dennis, based on the observation of necrotic roots and crowns that were colonized with dark, ectotrophic hyphae. However, the historical lack of take-all patch occurrence in this region led to the suspicion that G. graminis var. avenae was not involved. Sections of root and crown tissue were surface disinfested in 0.6% NaOCl for 5 min or 1% AgNO3 for 1 min and 5% NaCl for 30 s. Tissue was plated on SMGGT3 (2) or on potato dextrose agar containing 50 mg L-1 of tetracycline, streptomycin, and chloramphenicol. A fungus resembling Magnaporthe poae Landschoot & Jackson was consistently obtained regardless of isolation method. Teleomorph production was conducted on Sachs agar (4) overlaid with autoclaved wheat (Triticum aestivum L.) stem sections. Seven isolates were plated alone or paired with M. poae tester isolates 73-1 or 73-15 (3) and incubated at room temperature under continuous fluorescent illumination. Six isolates produced perithecia and ascospores typical of M. poae (3) when paired with 73-15 but not when plated alone or paired with 73-1; these isolates are, therefore, M. poae mating type ‘a’. Isolate TAP42 did not produce perithecia and remains unidentified. Cone-Tainers (3.8 × 20 cm) containing calcined clay were seeded with ‘A-4’ CRB (9.7 g cm-2) and inoculated 8 weeks later by placing four M. poae-infested rye (Secale cereale L.) grains below the soil surface. Inoculated Cone-Tainers were placed in growth chambers with 12-h day/night cycles at 30/25°C, 35/25°C, or 40/25°C. Field plots (1 m2) of ‘A-4’ CRB in Jackson Springs, NC were inoculated on 19 June 2003 by removing a soil core (1.9 × 10.3 cm) from the center of each plot, adding 25 cm3 of M. poae-infested rye grains, and then capping the hole with sand. Growth chamber and field inoculations were arranged in a randomized complete block with four replications. Eight weeks after inoculation in the growth chamber, isolates TAP35, TAP41, and SCR4 caused significant foliar chlorosis and dieback at 12-h day/night cycles of 30/25°C and 35/25°C, but only TAP41 induced symptoms at 40/25°C. Isolate TAP42 did not induce symptoms at any temperature regimen. Orange patches (10 to 15 cm in diameter) were observed in field plots inoculated with TAP41 on 27 August 2003. No other isolates induced aboveground symptoms. Roots and crowns of plants exhibiting foliar symptoms in the greenhouse and field were necrotic and colonized with ectotrophic hyphae, and M. poae was consistently isolated from this tissue. Although M. poae has been associated with CRB in Florida (1), to our knowledge, this is the first report of summer patch of CRB within the normal zone of adaptation for this turfgrass species. Observation of this disease highlights the need for accurate methods for diagnosis of diseases caused by ectotrophic root-infecting fungi. References: (1) M. L. Elliott. Plant Dis. 77:429, 1993. (2) M. E. Juhnke et al. Plant Dis. 68:233, 1984. (3) P. J. Landschoot and N. Jackson. Mycol. Res. 93:59, 1989. (4) E. S. Lutrell. Phytopathology 48:281, 1958.
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Weinstein, Nicole. "Nursery World visits… N Family Club Stoke Newington". Nursery World 2024, n.º 3 (2 de marzo de 2024): 24–25. http://dx.doi.org/10.12968/nuwa.2024.3.24.
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Post, Eric G., Dan Schaefer, Kevin M. Biese, Lisa Cadmus-Bertram, Andrew Watson, Timothy A. McGuine, Alison Brooks y David Bell. "A COMPARISON OF EMERGENCY PREPAREDNESS AND MEDICAL COVERAGE BETWEEN HIGH SCHOOL AND CLUB SPORT COACHES". Orthopaedic Journal of Sports Medicine 7, n.º 3_suppl (1 de marzo de 2019): 2325967119S0006. http://dx.doi.org/10.1177/2325967119s00061.
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BACKGROUND: Recent studies have demonstrated that a large population of high-school aged athletes participate on club sport teams. Studies have documented emergency preparedness and medical coverage standards in the high school athletic setting. However, similar examinations do not exist for youth club sport teams. PURPOSE: To determine if differences in emergency preparedness and medical coverage exist between high school team coaches and high school-aged club team coaches. A secondary purpose was to compare emergency training characteristics between high school and club coaches. METHODS: A total of 769 coaches (female N=266, 34.6%, age: 41.0±11.5 years) completed an anonymous online questionnaire regarding their emergency preparedness and training. Coaches from 3 sports were surveyed (basketball N=290, volleyball N=256, soccer N=223). The questionnaire consisted of 1) demographics and information regarding the teams that the respondent coaches, 2) emergency preparedness factors such as automated external defibrillator (AED) availability, emergency action plan (EAP) awareness, and medical coverage, and 3) emergency care training requirements (CPR, AED, first aid). Chi-square tests were used to compare response frequencies to various emergency preparedness questions between high school and club coaches. RESULTS: Overall, 64.6% (N=497) respondents were coaches of a high school team, and 35.4% (N=272) were coaches of a club team with high school-aged athletes. High school coaches were more likely than club coaches to be aware of the EAP for their practice venue (83.9% vs. 54.4%, p<.001), but most coaches in both categories had not practiced their EAP in the past 12 months (70.0% vs. 68.9%, p=.54). During competitions, high school coaches were more likely than club coaches to be aware of the EAP (47.5% vs. 37.1%, p=.02). However, the majority of coaches in each category reported that they were never aware of EAPs during competition. High school coaches were more likely than club coaches to 1) have an AED available at practice (87.9% vs. 58.8%, p<.001), 2), to report that athletic trainers were responsible for medical care at practices (31.2% vs. 8.8%, p<.001) and competitions (57.9% vs. 31.2%, p<.001), and 3) to be required to have CPR, AED, or first aid training (p<.001). Nearly all (98.8%) high school coaches were required to have CPR training, and overall, 58.6% of high school coaches were required to have training in all 3 categories (CPR, AED, first aid) compared to 23.9% of club coaches (p<.001). CONCLUSIONS: High school sport coaches displayed greater levels of emergency preparedness and training compared to coaches of high school-aged club teams. Significant attention and effort is needed to improve emergency preparedness and medical coverage at the club sports level among basketball, soccer, and volleyball coaches.
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Hamilton, Mark D., Frank J. Cruz y James McConnell. "RELEASE OF NITRATE - N FROM TROPICAL SOILS TREATED WITH FERTILIZERS". HortScience 28, n.º 5 (mayo de 1993): 463e—463. http://dx.doi.org/10.21273/hortsci.28.5.463e.
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The passage of nitrate nitrogen through three Guam soils was investigated using six different fertilizers. Controlled release and water soluble forms were applied to soils in polycarbonate pots 11cm in diameter. Controls received no fertilizer application. Soil types used were Yigo silty clay and Guam cobbly clay loam, from northern Guam, and Akina silty clay from southern Guam. All pots were exposed to ambient temperature and humidity but were shielded from direct sunlight and rain. All were kept near field capacity by daily applications of distilled water. Leachate was collected weekly for three months and measured using an ion selective electrode. Initial results suggest that nitrate levels were primarily affected by soil type rather than the type of fertilizer applied. Nitrate was invariably highest in Yigo silty clay, lowest in the Akina silty clay and intermediate in the Guam cobbly clay pots. Patterns of nitrate release were similar in the Yigo silty clay and Guam cobbly clay soils with peak values at the fourth and fifth week, 700ppm and 450 ppm respectively, then falling to 300ppm and 150ppm respectively by the sixth week. However, Akina silty clay soils gradually increased in nitrate to 120 ppm in the last two weeks of the experiment.
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Maria Dimitrij Angie Pavita. "Students’ Perceptions of the Use of a Snake and Ladder Board Game in Learning Vocabulary at the English Club of SMK N 1 Banyumas". English Language and Education Spectrum 2, n.º 1 (28 de enero de 2022): 24–30. http://dx.doi.org/10.53416/electrum.v2i1.60.
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This research examines the use of a snake and ladder board game implemented in SMK N 1 Banyumas. This research aimed to explore students’ perceptions of the use of a snake and ladder board game to facilitate vocabulary learning for the students participating in the English Club of SMK N 1 Banyumas. The researcher formulated two different issues in this study: (1) The students’ perceptions of the implementation of a snake and ladder board game for English Club students’ SMK N 1 Banyumas and (2) How the use of snake and ladder board game could enhance the English Club students’ vocabulary mastery at SMA SMK N 1 Banyumas. A case study as the research design was applied in this research. The research participants were thirty-three (33) students and an English teacher of the English Club at SMK N 1 Banyumas. In collecting data, the researcher conducted observation, distributed questionnaires, and conducted interviews with students and an English teacher of the English Club. The data were presented in the form of narrative descriptions. This study indicates that the participants were interested in using a snake and ladder board game. In fact, the participants realised that the use of a snake and ladder game could encourage students’ ability to enrich their vocabulary and suggested that the game is used for learning vocabulary in class.
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Efimoff, Iloradanon, Lyana Patrick, Viviane Josewski, Paul Gross, Sandy Lambert y Victoria Smye. "Power of Connections: How a Novel Canadian Men’s Wellness Program is Improving the Health and Well-Being of Indigenous and Non-Indigenous Men". International Indigenous Policy Journal 12, n.º 2 (10 de junio de 2021): 1–22. http://dx.doi.org/10.18584/iipj.2021.12.2.10896.
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The DUDES Club is a novel men’s health and wellness organization founded in 2010 in Vancouver, BC. Since 2017, the DUDES Club has rapidly expanded in Northern BC and, with the help of a partnership with the First Nations Health Authority, has grown to include 40 sites in British Columbia and 2 sites nationally. In this study, we analyze interviews (n = 5) and 15 focus groups (n = 101) conducted as part of a program evaluation with DUDES Club members, Elders, providers, and health care professionals. We focus on men’s experiences with the DUDES Club to identify four main themes in the data: brotherhood and community, accessible health care information, disrupting colonial constructions of masculinity, and systemic and structural challenges. We conclude with policy recommendations.
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Michelan, Vanessa Cecília de Azevedo y Wilza Carla Spiri. "Journal club estratégia de ensino e aprendizagem para desenvolvimento da enfermagem baseada em evidência". Revista Pesquisa Qualitativa 8, n.º 16 (22 de abril de 2020): 105. http://dx.doi.org/10.33361/rpq.2020.v.8.n.16.319.
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Resumo: Estudo de revisão integrativa da literatura. As bases de dados foram: Scopus; Pub Med; ProQuest; Web of Science e BVS, as palavras chaves: journal club e enfermagem ou gestão participativa, no período de 2014 a 2018. O critério inclusão foi: incluir as categorias de artigo (original, revisão de literatura, estudo de caso, multimétodo, análise de conteúdo, entre outros); artigos com resumos e textos completos disponíveis para análise no âmbito nacional e internacional. Foram encontrados 97 artigos, 23 atenderam os critérios de inclusão e constituíram a amostra. Apos análise Bibliométrica extraíram-se quatro categorias tais como: Implementação da estratégia de ensino e aprendizagem Journal Club; Construção do método do Journal Club; As vantagens e desafios da implementação do Journal Club e Avaliação da estratégia Journal Club. Trata-se de uma estratégia promissora, porém pouca utilizada no âmbito nacional, conhecida internacionalmente, mas há necessidades de mais evidências sob sua eficácia ao longo do tempoPalavras-chave: Journal Club; Enfermagem; Gestão Participativa e Liderança. Journal club teaching and learning strategy for evidence-based nursing developmentAbstract: Integrative literature review study. The databases were: Scopus; Pub Med; ProQuest; Web of Science and VHL, the key words: journal club and nursing or participatory management, from 2014 to 2018. The inclusion criterion was to include article categories (original, literature review, case study, multi-method, content, among others); articles with summaries and full texts available for analysis at national and international level. We found 97 articles, 23 met the inclusion criteria and constituted the sample. After the Bibliometric analysis, four categories were extracted: Implementation of the teaching and learning strategy Journal Club; Construction of the Journal Club method; The advantages and challenges of implementing the Journal Club and Journal Strategy Review. It is a promising strategy, but little used at the national level, known internationally, but there is a need for more evidence under its effectiveness over time.Keywords: Journal Club, Nursing, Participative Management Leadership.
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Jakobsson, Britta Thedin y Suzanne Lundvall. "Learn, Have Fun and Be Healthy! An Interview Study of Swedish Teenagers’ Views of Participation in Club Sport". International Journal of Environmental Research and Public Health 18, n.º 13 (25 de junio de 2021): 6852. http://dx.doi.org/10.3390/ijerph18136852.
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In Sweden, participation in club sport is a vital part of many children’s lives. Despite this, many stop in their teenage years, raising questions concerning if and in what ways club sport can provide health-promoting activities via longer, sustained participation. The aim of this cross-sectional study is to explore and discuss young people’s views of club sport from a health-promoting perspective. The analysis draws on three sets of qualitative data: results from focus groups interviews conducted in 2007 (n = 14) and in 2016 (n = 8) as well as 18 in-depth interviews conducted 2008. Antonovsy’s salutogenic theory and his sense of coherence (SOC) model inspired the analysis. Teenagers want to be a part of club sport because of a sense of enjoyment, learning, belonging and feeling healthy. Teenagers stop when sport becomes too serious, non-flexible, time-consuming and too competitive. The urge for flexibility and possibilities to make individual decisions were emphasised in 2016. The organisation of club sport, it seems, has not adapted to changes in society and a generation of teenagers’ health interests. Club sport has the potential to be a health-promoting arena, but the focus should be on changing the club sport environment, instead of a focus on changing young people.
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Li, Hua-Ming y Hong-Biao Chen. "Synthesis and characterization of poly(N-n-butylmaleimide)–clay nanocomposites". Materials Letters 57, n.º 20 (junio de 2003): 3000–3004. http://dx.doi.org/10.1016/s0167-577x(02)01420-9.
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Post, Eric G., Daniel A. Schaefer, Kevin M. Biese, Andrew M. Watson, Timothy A. McGuine, M. Alison Brooks y David R. Bell. "A Comparison of Team Sport Volume Surveyed Between High School and Club Sport Coaches". Orthopaedic Journal of Sports Medicine 7, n.º 4 (1 de abril de 2019): 232596711983648. http://dx.doi.org/10.1177/2325967119836484.
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Background: Club sport participation is increasingly common among high school athletes. Sport participation characteristics may vary widely between the high school and club sport settings. However, there have been no large-scale comparisons of sport participation volume between high school and club teams from similar sports. Purpose/Hypothesis: The purpose of this study was to compare the sport participation characteristics of high school and high school–aged club teams. We hypothesized that club team athletes would participate in more months per year and hours per week and would take more overnight trips than high school athletes and that club team coaches would be less likely to track their athletes’ sport volume than high school coaches. Study Design: Cross-sectional study. Methods: A total of 769 coaches (266 female; 34.6%) from 3 sports (basketball, volleyball, soccer) completed an anonymous online questionnaire regarding their team’s sport volume and their knowledge, attitudes, and beliefs regarding sport specialization. Coaches were eligible to participate if they had served as the head or assistant coach of a high school sport team or high school–aged club sport team in the past 12 months. Results: Overall, 64.6% (n = 497) were coaches of a high school team, and 35.4% (n = 272) were coaches of a club team with high school–aged athletes. Club coaches’ teams played more months out of the year and took more overnight trips for competitions than high school coaches’ teams but participated in fewer hours per week of practices or competitions during their season. There were no differences between club and high school coaches in tracking their athletes’ sport volume, with most coaches in both settings reporting that they do not track the amount of time that their athletes participate in other sports. Conclusion: Significant differences in sport participation volume exist between the teams of high school and club coaches.
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Heller-Kallai, Lisa. "Reactions of Clay Volatiles with n-Alkanes". Clays and Clay Minerals 37, n.º 5 (1989): 446–50. http://dx.doi.org/10.1346/ccmn.1989.0370508.
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Ma, Xian Ying. "Discussion on Mathematical Model for Proper Location and Scientific Layout of Chain Fitness Club". Advanced Materials Research 181-182 (enero de 2011): 583–87. http://dx.doi.org/10.4028/www.scientific.net/amr.181-182.583.
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Chain fitness club is an important site for people’s fitness activities in China and with its increasing popularity, how to select rational sites and conduct scientific layout, it grows quite urgent. In order to give full play to the fitness club, the paper, intends to coordinate the site selection for national fitness and optimize its layout scientifically to meet the needs of the people maximally. This paper modeled the problem in that there are n residential areas (referred to as Collection), numbered from p 1, p 2, …, p n with their location coordinates known as p 1 (x 1, x 2) , p 2 (x 2, y 2) , …, p n (x n , y n ) respectively, and w i inhabitants. To establish m fitness clubs qi (uj , u j ), we assume residents in each district can have access to only one fitness club to do fitness exercise. The question is that how to plan and lay out the m fitness clubs enables the shortest total distance C for all residents’ reach to their fitness club. In this paper, the Location Model in Operational Research is employed to make an analytical study on this issue to establish the location model and meanwhile gives mathematical solutions to the model in detail.
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Strong, D. T., P. W. G. Sale y K. R. Helyar. "The influence of the soil matrix on nitrogen mineralisation and nitrification. IV.Texture". Soil Research 37, n.º 2 (1999): 329. http://dx.doi.org/10.1071/s98043.
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Small undisturbed soil volumes (c. 1·7 cm3) were collected from the surface of a small field plot. Soil volumes were treated with clover-derived substrate, dried and rewetted, or retained continuously moist from the field. These soil volumes were then incubated for 20 days at a matric water potential of either –10 or –30 kPa. At the end of the incubation the soil was analysed for volumetric water content (θv), NO-3 -N, NH+4 -N, total N (%N), and percentages of sand, silt, and clay. The texture terms were included in linear regression models, together with %N and θv as predictors of N mineralisation and nitrification. Clay and sand were often observed to have a significant influence on N mineralisation and nitrification, but silt rarely appeared to influence these processes. In soils retained continuously moist, %clay had a negative relationship with N mineralisation and nitrification, but this relationship was positive in soils that had been dried and rewetted. The results suggest that during periods of relatively high moisture content, soils that are higher in clay are able to protect organic N more effectively from microbial attack. However, on drying and rewetting, the protective mechanisms of clay are undermined, the relatively large protected reservoirs of organic N in high clay soils become more vulnerable to microbial attack, and these soils therefore experience a greater flush of N mineralisation than soils with lower clay levels. The negative influence of clay in the continuously moist soils was not as clearly observed in the soils incubated at –10 kPa as in soils incubated at –30 kPa, suggesting that the decomposition of organic N resident in larger pores (10–30 µm neck diameter) may not be as strongly regulated by clay as that resident in smaller pores. When soils were treated with clover-derived substrate, clay had a positive relationship with N mineralisation and nitrification rates. This may have been because clay limited the diffusion of partially decomposed organics away from the decomposing microbial population, thereby helping to facilitate more complete decomposition of the organic material. Texture had very little influence on the nitrification of urea-derived ammonium.
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Miyazaki, Sho, Takeshi Karino, Hitoshi Endo, Kazutoshi Haraguchi y Mitsuhiro Shibayama. "Clay Concentration Dependence of Microstructure in Deformed Poly(N-isopropylacrylamide)−Clay Nanocomposite Gels". Macromolecules 39, n.º 23 (noviembre de 2006): 8112–20. http://dx.doi.org/10.1021/ma061688o.
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Meng, Fanchao, Kelin Hu, Puyu Feng, Guozhong Feng y Qiang Gao. "Simulating the Effects of Different Textural Soils and N Management on Maize Yield, N Fates, and Water and N Use Efficiencies in Northeast China". Plants 11, n.º 23 (1 de diciembre de 2022): 3338. http://dx.doi.org/10.3390/plants11233338.
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Determining the best management practices (BMPs) for farmland under different soil textures can provide technical support for improving maize yield, water- and nitrogen-use efficiencies (WUE and NUE), and reducing environmental N losses. In this study, a two-year (2013–2014) maize cultivation experiment was conducted on two pieces of farmland with different textural soils (loamy clay and sandy loam) in the Phaeozems zone of Northeast China. Three N fertilizer treatments were designed for each farmland: N168, N240, and N312, with N rates of 168, 240, and 312 kg ha−1, respectively. The WHCNS (soil Water Heat Carbon Nitrogen Simulator) model was calibrated and validated using the observed soil water content, soil nitrate concentration, and crop biological indicators. Then, the effects of soil texture combined with different N rates on maize yield, water consumption, and N fates were simulated. The integrated index considering the agronomic, economic, and environmental impacts was used to determine the BMPs for two textural soils. Results indicated that simulated soil water content and nitrate concentration at different soil depths, leaf area index, dry matter, and grain yield all agreed well with the measured values. Both soil texture and N rates significantly affected maize yield, N fates, WUE, and NUE. The annual average grain yield, WUE, and NUE under three N rates in sandy loam soil were 8257 kg ha−1, 1.9 kg m−3, and 41.2 kg kg−1, respectively, which were lower than those of loam clay, 11440 kg ha−1, 2.7 kg m−3, and 46.7 kg kg−1. The order of annual average yield and WUE under two textural soils was N240 > N312 > N168. The average evapotranspiration of sandy loam (447.3 mm) was higher than that of loamy clay (404.9 mm). The annual average N-leaching amount of different N treatments for sandy loam ranged from 5.1 to 13.2 kg ha−1, which was higher than that of loamy clay soil, with a range of 1.8–5.0 kg ha−1. The gaseous N loss in sandy loam soil accounted for 14.7% of the fertilizer N application rate, while it was 11.1%in loamy clay soil. The order of the NUEs of two textural soils was: N168 > N240 > N312. The recommended N fertilizer rates for sandy loam and loamy clay soils determined by the integrated index were 180 and 200 kg ha−1, respectively.
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Ørntoft, Christina, Malte Nejst Larsen, Mads Madsen, Lene Sandager, Ida Lundager, Andreas Møller, Lone Hansen et al. "Physical Fitness and Body Composition in 10–12-Year-Old Danish Children in Relation to Leisure-Time Club-Based Sporting Activities". BioMed Research International 2018 (27 de diciembre de 2018): 1–8. http://dx.doi.org/10.1155/2018/9807569.
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This study investigated whether the physical fitness and body composition of 10–12-year-old Danish children are related to participation in leisure-time club-based sporting activities. The study involved 544 Danish 10–12-year-old 5th-grade municipal schoolchildren (269 boys and 275 girls, 11.1 ± 0.4 years). After answering a questionnaire about leisure-time sporting activities, the children were divided into four groups: football club participation (FC; n=141), other ball games (OBG; n=42), other sports (OS; n=194), and no sports-club participation (NSC; n=167). The children completed a battery of health and fitness tests, including a 20 m sprint test, a standing long-jump test, the Yo-Yo IR1 children’s test (YYIR1C), and body composition, blood pressure, resting heart rate (HRrest), and the flamingo balance test. The children engaged in club-based ball games (FC and OBG) had higher (p<0.05) lean body mass than NSC (FC: 17.5 ± 2.9; OBG: 18.4 ± 2.6; OS: 16.7 ± 2.9; NSC: 16.4 ± 2.8 kg), performed better (p<0.05) in the YYIR1C test (FC: 1083 ± 527; OBG: 968 ± 448; OS: 776 ± 398; NSC: 687 ± 378 m), and had lower (p<0.05) %HRmax after 1, 2, and 3 min of YYIR1C. Moreover, HRrest was lower (p<0.05) for FC than for OS and NSC (FC: 68 ± 9 vs OS: 72 ± 10 and NSC: 75 ± 10 bpm), and lower (p<0.05) for OBG than for NSC (OBG: 70 ± 10 vs NSC: 75 ± 10 bpm). This study found that 10–12-year-old Danish children engaged in club-based football and other ball games had better exercise capacity, lower resting heart rate, and higher muscle mass than children not engaged in leisure-time sports. Thus, participation in club-based leisure-time ball-game activities seems to be of importance for the fitness and health profile of prepubertal children.
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Bacciotti, Sarita, Adam D. G. Baxter-Jones, Adroaldo Gaya y José Maia. "MOTOR PERFORMANCE OF BRAZILIAN FEMALE ARTISTIC GYMNASTS: INSIGHTS VIA MULTILEVEL ANALYSIS". Science of Gymnastics Journal 11, n.º 2 (1 de junio de 2019): 139–50. http://dx.doi.org/10.52165/sgj.11.2.139-150.
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The aim of this research was to investigate individual and club-level variables that explain individual differences in gymnasts´ motor performance (MP). The sample was comprised of 249 female gymnasts (68 elite; 181 non-elite), aged between 9 and 20 years, split into four age categories: 9-10 years (n=98); 11-12 years (n=72); 13-15 years (n=64), and 16 and above (n=15). Gymnasts were from 26 Brazilian clubs, from six different states. The Talent Opportunity Program physical ability total test score was used to assess gymnasts’ MP, based on a battery of seven tests: handstand hold, cast, rope climb, press handstand, leg flexibility, leg lift, and 20 meter sprint. Anthropometric, body composition, biological maturation, and training history data were also collected, as were club dimensions, infrastructures, competitions, manpower, and availability of selection/talent programs. Data were analyzed using a multilevel modelling approach. Individual gymnast’ characteristics explained 39% of physical ability score variance from which 32% was related to the independent effects of age, competitive level, fat free mass, occurrence of menarche, and trainings hours per week (p<0.05). Club characteristics explained 61% of gymnasts’ total variance in physical ability score; 96% of this amount was related to club dimension, manpower, and talent program. These results reinforce the relevant role of the contextual effects and highlight the need to invest in club infrastructures: ideally in coaches’ expertise and effective selection programs. Such investments should enable the enhancement and development of a gymnast’s careers during their lifetime involvement in training and competition.
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Summey, Rebekah Mynatt, Whitney Leonard, Kristan Schiele, Sigrid Tristan, Amy Young, Emily Vinas y James Stuart Ferriss. "Iterative approach to journal club". Postgraduate Medical Journal 96, n.º 1138 (26 de marzo de 2020): 496–99. http://dx.doi.org/10.1136/postgradmedj-2020-137551.
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To identify, evaluate and refine a journal club (JC) format that increases faculty and resident engagement. An initial needs assessment followed by a trial of three JC formats: traditional single presenter, debate style and facilitated small group discussion was piloted over 6 months. Anonymous feedback was collected. The facilitated small group format was chosen. Narrative and quantitative feedback were collected from residents and faculty at 6-month intervals for the next 24 months. Changes to the format were made using feedback. Fourteen residents (n=20, 70%) and 10 faculty (n=20, 50%) completed baseline surveys. We initially observed low resident (8/14, 57%) interest in JCs. Additionally, 9/14 (64%) of residents and 1/15 (7%) of faculty reported low confidence presenting articles publicly. After implementation of the new JC format, resident reported enjoyment, on a scale of 1–5, improved from 3.6 to 4.4 (p<0.01). We observed improvement in resident confidence in the ability to critique a paper (2.7 to 4.1, p<0.01) and in confidence speaking in front of both peers (3.8 to 4.6, p<0.01) and faculty (3.0 to 3.8, p=0.04). Faculty confidence with literature critique decreased (from 4.2 to 3.8), but enjoyment remained stable (4.3 to 4.2). A facilitated small group JC format was preferred in our programme. We observed measurable improvements in both resident interest and confidence, as well as sustained faculty interest in JCs. We fostered an environment of inquiry and identified areas of continued professional development.
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McGinnis, Ian William, K. Ellis F. Mair, Jamie Mansell y Christy Collins. "Epidemiology of Boys' Club Lacrosse Injuries During the 2018 Summer Lacrosse Season". Journal of Athletic Training 55, n.º 10 (23 de septiembre de 2020): 1124–29. http://dx.doi.org/10.4085/1062-6050-0272.19.
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Context In the past 10 years, participation in boys' youth and high school lacrosse has increased by 33%. Among many club teams and tournaments, athletes may not have access to medical coverage. Additionally, these athletes face a higher volume of play than in traditional scholastic sport settings. Objective To describe the injury characteristics of boys' nonscholastic youth and high school club lacrosse athletes over the course of a summer season. Design Descriptive epidemiology study. Patients or Other Participants Boys' nonscholastic youth and high school lacrosse athletes, aged 8 to 18 years, who competed in tournaments. Main Outcome Measure(s) Athletic trainers at tournaments were given standardized injury report forms to document patient encounters. These reports were then entered into the Datalys Injury Surveillance Tool. Results Over the summer tournament season, 233 injuries were reported in 109 342 athlete-exposures (AEs) for an injury rate of 2.13 per 1000 AEs (95% confidence interval = 1.87, 2.42). The most frequently injured body parts were the head and/or face (n = 51, 22%), arm and/or elbow (n = 34, 15%), and hand and/or wrist (n = 29, 12%). The most common diagnoses were contusions (n = 63, 27%), concussions (n = 44, 19%), fractures (n = 39, 17%), and sprains (n = 35, 15%). The most often injured position was midfielder (n = 65, 41%), followed by defense (n = 48, 30%), attack (n = 36, 23%), and goalkeeper (n = 9, 6%). The concussion rate was 0.4 per 1000 AEs (95% confidence interval = 0.28, 0.52). Conclusions The injury rate experienced by boys' nonscholastic club lacrosse athletes was similar to the rates of their high school counterparts as well as school-sponsored football and wrestling athletes. Because of the risk of injury, athletic training services should be available for youth and high school club lacrosse tournaments.
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Lane, Aoife, Niamh Murphy, Colin Regan y David Callaghan. "Health Promoting Sports Club in Practice: A Controlled Evaluation of the GAA Healthy Club Project". International Journal of Environmental Research and Public Health 18, n.º 9 (30 de abril de 2021): 4786. http://dx.doi.org/10.3390/ijerph18094786.
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Sport is a developing setting and a relevant system in health promotion but there are few examples of settings-based initiatives and systems thinking in sport. The Gaelic Athletic Association (GAA) Healthy Club Project (HCP) adopts a settings approach delivered through and by grassroots clubs who respond to local needs while working within a national support system. The aim of this evaluation was to assess and describe the health promotion impact and experience of the HCP. Healthy Clubs (n = 23) and Control Clubs (n = 10) completed a Healthy Club Questionnaire at the start and end of the 20-month HCP and Healthy Clubs took part in focus group discussions. Healthy Clubs, using the structures of the HCP, a commitment to health and community engagement, demonstrated a significant improvement in their overall orientation to health promotion, which was not apparent in Control Clubs. The health promotion message is pervading into many aspects of the GAA club apart from that which relates to the day to day business of coaching and providing physical activity for all. The HCP represents health promotion activity embedded within and across systems, with further development and evaluation recommended to measure delivery and impact at the individual level, organisational, and wider societal levels.
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Maki, Yasuyuki. "Poly(N,N-dimethylacrylamide)-clay nanocomposite hydrogels with patterned mechanical properties". Colloid and Polymer Science 297, n.º 4 (23 de febrero de 2019): 587–94. http://dx.doi.org/10.1007/s00396-019-04486-6.
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Pryce, Julia M., Michael S. Kelly y Mary Lawinger. "Conversation Club: A Group Mentoring Model for Immigrant Youth". Youth & Society 51, n.º 7 (8 de junio de 2018): 879–99. http://dx.doi.org/10.1177/0044118x18780526.
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This mixed-methods research evaluates Conversation Club (CC), a Canadian after-school group mentoring intervention for newcomer youth. The study’s main objectives are to examine the effects of CC on newcomer youth’s experiences of belonging, connectedness, hopefulness, and integration into Canadian society. Using a quasi-experimental design, CC ( n = 67) and a comparison group of immigrant youth ( n = 25) completed questionnaires focused on sense of ethnic identity, community, belonging, and hope for the future. In addition, a subset of CC participants ( n = 13) completed in-depth interviews focused on their experience of the Club. Interview findings suggest that participation in the Club results in an increased sense of belonging and connection for these young people. Implications for research and programs are discussed, focused on ways to enhance and expand innovative group mentoring programs to the important populations of immigrant and migrant young people across Canada and beyond.
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Carter, Mary-Ann, R. Edwards, L. Signal y J. Hoek. "Availability and marketing of food and beverages to children through sports settings: a systematic review". Public Health Nutrition 15, n.º 8 (29 de noviembre de 2011): 1373–79. http://dx.doi.org/10.1017/s136898001100320x.
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AbstractObjectiveThe current systematic review aimed to identify and critically appraise research on food environments in sports settings, including research into the types of food and beverages available, the extent and impact of food and beverage sponsorship and marketing, and views about food environments among key stakeholders.DesignA systematic review. Fourteen English-language studies (two were papers describing different facets of the same study), published between 1985 and 2011, were identified from searches of electronic databases and bibliographies of primary studies.SettingMost studies originated from Australia (n 10), with the remaining studies originating in the UK (n 1), New Zealand (n 1), the USA (n 1) and Canada (n 1). Data were collected from observations in stadia, websites and televised sports events, through in-depth interviews, focus groups and surveys with sports club members, parents and quick serve restaurant managers.ResultsLiterature exploring food environments in sports settings was limited and had some important methodological limitations. No studies comprehensively described foods available at clubs or stadia, and only one explored the association between food and beverage sponsorship and club incomes. Club policies focused on the impact of health promotion funding rather than the impact of sponsorship or food availability in sports settings.ConclusionsFurther research, including comprehensive studies of the food environment in sports settings, is required to document the availability, sponsorship and marketing of food and beverages at national, regional and club levels and to estimate how sports settings may influence children's diets.
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Faaiz Ali Shah, Khalid Mahmood Qureshi y Ayesha Saeed. "Transition from physical to virtual journal club." Professional Medical Journal 30, n.º 12 (30 de noviembre de 2023): 1610–16. http://dx.doi.org/10.29309/tpmj/2023.30.12.7663.
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Objective: To determine the effectiveness of Orthopaedic virtual journal club started during COVID-19 pandemic. Study Design: Descriptive Cross sectional. Setting: Orthopaedic & Traumatology Division Lady Reading Hospital Peshawar, Pakistan. Period: 6th February 2021 to 6th June 2023. Material & Methods: We selected one original article which was published in Journal of Pakistan Orthopaedic Association (JPOA).The author of that article would present it in synchronous virtual journal club (VJC) on Zoom. Orthopaedic residents from all over Pakistan attended the VJC. All the residents provided feedback (on 5 point Likert scale) by answering 11 questions related to various aspects of their learning experiences which were analyzed to measure the effectiveness of VJC. Results: We conducted 12 VJC on various topics. The total number of post graduate residence who attended these VJC were 380. Final year residents were more likely to attend VJC than first year residents (p=0.02). After 12 VJC the mean resident participation was 42±1.2. We received the feedback forms of 344(90.52%) residents. The VJC was extremely convenient to vast majority (86.62%, n=298) of residents. The VJC was perceived very effective and extremely valuable by 90.11% (n=310) and 84.59% (n=291) residents respectively. Majority (90.11%, n=310) of our residents strongly agreed that VJC provided them more understanding of writing an original article. Conclusion: Our transition from physical to virtual journal club was very fruitful. Virtual Journal club was an extremely convenient, very effective and extremely valuable form of distant learning. Knowledge, attitude and skills of the residents were improved which support them in their delivery of patient care and improved patient clinical outcome. The VJC provided the residents more understanding of writing an original article.
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Scott, Chelsi E., Mary D. Fry, Hannah Weingartner y Troy O. Wineinger. "Collegiate Sport Club Athletes’ Psychological Well-Being and Perceptions of Their Team Climate". Recreational Sports Journal 45, n.º 1 (2 de marzo de 2021): 17–26. http://dx.doi.org/10.1177/1558866121995169.
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The purpose of this study was to consider how the Positive Coaching Alliance (PCA) Triple-Impact Competitor (TIC) workshop could be used to help create a positive climate for recreational sport club participants, and to examine how perceptions of a positive team climate related to indices of psychological well-being among sport club athletes. At the beginning of their season, sport club leaders completed the PCA TIC workshop. Following the conclusion of the spring season, we invited all sport club participants ( N = 109) to complete a survey that examined the motivational climate on their teams, as well as their hope, happiness, and self-kindness. Athletes’ perceptions of a CTI climate were significantly and positively related to their hope, happiness, and self-kindness. Results suggest that the PCA TIC training is an inexpensive strategy that may foster a positive environment within university sport club teams and may assist programs in promoting indices of psychological well-being among club sport athletes.
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Robbins, Lorraine B., Jiying Ling y Fujun Wen. "Attending After-School Physical Activity Club 2 Days a Week Attenuated an Increase in Percentage Body Fat and a Decrease in Fitness Among Adolescent Girls at Risk for Obesity". American Journal of Health Promotion 34, n.º 5 (2 de abril de 2020): 500–504. http://dx.doi.org/10.1177/0890117120915679.
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Purpose: To evaluate the effect of a 17-week intervention, including an after-school physical activity (PA) club 3 d/wk, on moderate-to-vigorous physical activity (MVPA), body mass index (BMI) z score, percentage body fat (%BF), and cardiorespiratory fitness (CRF) among fifth to eighth grade girls having a BMI z score ≥0, and explore whether intervention outcomes varied by club attendance (1 vs 2 vs 3 d/wk). Design: Secondary analysis of data from a group randomized controlled trial (N = 1519, 10- to 15-year-old girls: n = 753 intervention; n = 766 control). Setting: Twenty-four Midwestern US schools (n = 12 intervention; n = 12 control). Sample: Subsample (n = 1194 girls) from trial’s intervention (n = 593 girls) and control (n = 601 girls) groups having BMI z scores ≥0. Measures: Moderate-to-vigorous physical activity (min/h), BMI z score, %BF, and CRF ([Formula: see text]: mL/kg/min) were estimated at baseline and postintervention. Analysis: Linear mixed-effect models. Results: Intervention group gained less %BF ( B = −0.35, P = .016), and their CRF decreased less ( B = 0.22, P = .010) than the control. Marginally significant findings showed girls attending the club an average of 1 d/wk had greater increases in %BF ( B = 0.33, P = .087) and MVPA ( B = 0.20, P = .083) and a greater decrease in CRF ( B = −0.20, P = .061) than girls attending 3 d/wk. No differences occurred between girls who attended 2 versus 3 d/wk for any outcomes. Conclusions: The intervention attenuated an increase in %BF and a decrease in CRF among girls at risk for obesity from baseline to postintervention. Offering the after-school PA club 2 d/wk may be adequate for achieving outcomes.
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Ng, Kwok, Pauli Rintala, Jorma Tynjälä, Raili Välimaa, Jari Villberg, Sami Kokko y Lasse Kannas. "Physical Activity Trends of Finnish Adolescents With Long-Term Illnesses or Disabilities From 2002–2014". Journal of Physical Activity and Health 13, n.º 8 (agosto de 2016): 816–21. http://dx.doi.org/10.1123/jpah.2015-0539.
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Background:Adolescents’ physical activity level is a major source of concern. For adolescents with long-term illnesses or disabilities (LTID), being physically active can prevent secondary conditions. This is one of the first studies reporting trends in physical activity of adolescents with LTID in relation to gender, age, and sports club membership.Methods:Data were collected from the Health Behavior in School-aged Children study in Finland during 2002, 2006, 2010, and 2014. In 13- and 15-year-olds (N = 2206), 17.1% reported having LTID. Daily physical activity recall was the dependent variable. Binary logistic regression analysis was conducted eparately for sports club members (n = 936) and nonmembers (n = 1270).Results:The proportion of physically active adolescents with LTID in 2014 was higher than in 2002 for girls (15.6% vs 8.7%) and boys (26.6% vs 13.0%). Girl sports club members were 2 times more likely to be physically active in 2014 than in 2002. The largest trend between 2014 and 2002 was among boy nonmembers (odds ratio: 4.62, 95% confidence interval, 2.02–10.58).Conclusions:More adolescents with LTID took part in daily moderate-to-vigorous physical activity in 2014 than in 2002; however, physical activity levels still remain low. Sports club membership was similar to that of the general population.
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Sulaeman, Agus, Felix N. L. Ling y Martosuro Sajiharjo. "Modelling of Clay Behaviour in Pile Loading Test Using One-Gravity Small-Scale Physical Model". Applied Mechanics and Materials 773-774 (julio de 2015): 1535–41. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.1535.
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The observations and tests under small scale in 1-gravity condition are intended to obtain a comparative behavior of a model and prototype of geotechnical case by imposing the scaling relations. Simulations to represent a related structure, sub-soil and failure mechanism need to be prepared prior to do observations in this modeling. To simulate pile loading test (PLT) on clay, the following models of: clay, pile, driving simulation and procedure of PLT based on ASTM D4410 were set-up. The PLT in reduced scale environment was then followed by performing normal practice of full scale PLT in original clay site. Load settlement curves obtained from both “pile loading test” in small and full scale simulations showed closely good agreement. Further observation and investigation on simulation of pile loading test in clay revealed that modeling the following: clay sub-soil resulted in new properties of clay, em=ep+λLn(N) which reflects stress scaling factor, N, pile size and pile driving hammer need scaling factor n and n3 respectively whereas PLT time needs time scaling factor, tp (n)0.5.
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López-Cortés, J. G., G. Penieres-Carrillo, M. C. Ortega-Alfaro, R. Gutiérrez-Pérez, R. A. Toscano y C. Alvarez-Toledano. "Oxidative coupling-type mechanism of N,N-dialkylanilines in solvent-free conditions forming crystal violet derivatives. A clay-mediated and microwave-promoted approach". Canadian Journal of Chemistry 78, n.º 10 (1 de octubre de 2000): 1299–304. http://dx.doi.org/10.1139/v00-133.
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In the clay-mediated reaction of N,N-disubstituted anilines using microwave radiation as an energy source in the absence of solvent, crystal violet and derivatives, diphenylmethanes, and biphenyls were isolated along with intermediates supporting an oxidative coupling-type mechanism.Key words: clay, dyes, microwave radiation, solvent-free reactions.
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Lee, Cheryl D., Eliette del Carmen Montiel, Jamie Atchison, Paul Flory, Jessica Liza y John Valenzuela. "An innovative approach to support social groupwork". Groupwork 19, n.º 3 (20 de diciembre de 2012): 11–26. http://dx.doi.org/10.1921/gpwk.v19i3.685.
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This article discusses a creative endeavor to establish a university social groupwork club affiliated with the Association for the Advancement of Social Work with Groups, an international professional association. The club’s purposes were: 1) to nurture social groupwork; 2) to engage students, practitioners and academics in a collaborative groupwork experience, and; 3) to link members to an international social work organization that supports all aspects of groupwork. The planning, stages, mutual aid and evaluation of the club are described. A longitudinal survey design was used to evaluate members’ perceptions of the club. Feedback questionnaires (N = 129) were analyzed for a one-year period. Results indicated that club members benefited from mutual aid and experienced professional growth.
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Olutoye, M. A., F. Aberuagba y J. O. Odigure. "Catalytic Dehydrogenation of n-Butane over Activated Clay". Advanced Materials Research 18-19 (junio de 2007): 225–31. http://dx.doi.org/10.4028/www.scientific.net/amr.18-19.225.
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Xu, Di, Divya Bhatnagar, Dilip Gersappe, Jonathan C. Sokolov, Miriam H. Rafailovich y Jack Lombardi. "Rheology of Poly(N-isopropylacrylamide)–Clay Nanocomposite Hydrogels". Macromolecules 48, n.º 3 (16 de enero de 2015): 840–46. http://dx.doi.org/10.1021/ma502111p.
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Berg, Patrik, Carsten Dieter Prowald y Dirk Kuckling. "Investigation of Gel Properties of Novel Cryo-Clay-Silica Polymer Networks". Gels 6, n.º 2 (30 de marzo de 2020): 11. http://dx.doi.org/10.3390/gels6020011.
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Several methods to increase the mechanical and swelling properties of Poly(N-isopropylacrylamide) gels are known. In this study different methods were combined to systematically alter the gel properties. The combination of nanocomposite and cryo gels as well as silica post modification was used to modulate the gel strength. This new cryo-clay-silica gel based on N-isopropylacrylamide was investigated in respect to degree of swelling, kinetic of thermo responsive behavior and tensile strength. Here, the properties of new cryo-clay-silica gel were compared with properties of clay-, silica-clay and cryo-clay gels.
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Nakai, Yoshie, Stephen C. Hill, Andrea F. Snell y Jared Z. Ferrell. "A Job Club for Older Job Seekers". Journal of Career Development 45, n.º 6 (18 de agosto de 2017): 551–65. http://dx.doi.org/10.1177/0894845317724550.
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The purpose of the current study is to explore the changes in participants’ attitude toward job search and perceived utility of training during job search interventions, called job clubs, designed for older adults. Latent growth modeling was used to examine the trajectories of these outcomes during 3-week-long job clubs. In addition, the study examined the relationship between participants’ self-regulatory skills (emotion control and motivation control) and the training outcomes. In Study 1 (20 job clubs, N = 200) and Study 2 (36 job clubs, N = 385), participants showed continuous positive change in the attitude and perceived utility of training. Although self-regulatory skills in the beginning of job club were not related to the improvement in the outcomes, dynamic measures of emotion control predicted change in attitude and motivation control predicted both attitude and perceived utility of training.
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Jansseune, Laurent, Mafalda Pardal, Tom Decorte y Òscar Parés Franquero. "Revisiting the Birthplace of the Cannabis Social Club Model and the Role Played by Cannabis Social Club Federations". Journal of Drug Issues 49, n.º 2 (5 de diciembre de 2018): 338–54. http://dx.doi.org/10.1177/0022042618815690.
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Cannabis Social Clubs (CSCs) are a nonprofit model for the supply of cannabis originating in Spain. This article aims to provide an overview of current CSC practices in Barcelona, exploring the role played by CSC Federations in shaping them. This analysis draws on 32 semistructured interviews with CSC managers ( n = 15) and with other stakeholders in Barcelona ( n = 17). We build also on field observations at other CSCs based in Barcelona. We found a heterogeneity of CSC practices, some of which were not in line with the self-regulatory codes developed by the CSC Federations. In applying an earlier CSC typology, we identified also country-specific CSC features. While the CSC Federations have contributed to unifying the cannabis movement and made efforts to homogenize CSCs’ practices, in the absence of (government) cannabis regulation, their efforts have to some extent been undermined.
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Dempster, Daniel N., Davey L. Jones y Daniel V. Murphy. "Clay and biochar amendments decreased inorganic but not dissolved organic nitrogen leaching in soil". Soil Research 50, n.º 3 (2012): 216. http://dx.doi.org/10.1071/sr11316.
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Nitrogen (N) leaching from coarse-textured soils frequently leads to productivity losses and negative environmental consequences. Historically, clay amendment has been used on coarse-textured soils to decrease water repellence and nutrient leaching. More recently, biochar has been proposed as an alternative soil amendment to decrease N leaching while simultaneously storing carbon. As biochar has a greater nutrient-retention capacity, we hypothesised that biochar derived from Eucalyptus marginata would be a more effective amendment than clay at minimising N leaching. The soil used was a coarse-textured agricultural sand with the following treatments: (1) biochar incorporated homogenously into the 0–10 cm soil layer, (2) clay incorporated similarly, (3) biochar added as a layer at 10 cm depth, (4) clay added similarly, or (5) a control. Amendments were added at 25 t/ha and watered periodically over 21 days and watered with the equivalent to 30 mm. Clay and biochar amendments significantly decreased cumulative NH4+ leaching by ~20% and NO3– leaching by 25%. Biochar decreased NO3– leaching significantly more than clay, possibly due to decreased nitrification. Dissolved organic N leaching was not influenced by any treatment. Leaching of N was unaffected by amendment application method. We conclude that to decrease N leaching, land managers should apply the most readily available of the amendments in the most convenient manner.
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Trinh, Phap Q., Lieven Waeyenberge, Chau N. Nguyen, James G. Baldwin, Gerrit Karssen y Maurice Moens. "Apratylenchus vietnamensis gen. n., sp. n. and A. binhi gen. n., sp. n., sedentary Pratylenchidae (Nematoda: Tylenchida) from coffee in Vietnam, with proposal of Apratylenchinae subfam. n." Nematology 11, n.º 4 (2009): 565–81. http://dx.doi.org/10.1163/138855409x12465362560593.
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Abstract Apratylenchinae subfam. n. is proposed within the Pratylenchidae to include Apratylenchus gen. n. and two new species, A. vietnamensis gen. n., sp. n. and A. binhi gen. n., sp. n., from coffee plantations in Vietnam. Apratylenchus gen. n. is distinguished by the presence of transverse rows of cuticular tubercles on the annuli and by sexual dimorphism in which the males are stout and cylindrical, but mature sedentary females are club-shaped. The sedentary females are broadest in the posterior third although narrowing posterior to the vulva (V ≥ 85%). The female cephalic region is low and dome-shaped with all labial sectors fused to one another and the oral disc and the pharyngeal glands overlap the intestine ventrally. Males have a weak stylet with reduced knobs and a conical tail with a blunt terminus, arcuate spicules and a non-protrusible gubernaculum. Apratylenchus vietnamensis gen. n., sp. n. is characterised by a sedentary mature female with a 368-515 μm long club-shaped body, cephalic region low, dome shaped with three annuli, body annuli bearing a single or double row of refractive tubercles, stylet 17.0-19.9 μm long, V = ca 88-92, spermatheca filled with sperm and males known, if rarely found, in the type population. Males have a weak, 15 μm long stylet with reduced knobs, 16 μm spicules, a non-protrusible gubernaculum and low bursa. It differs from A. binhi gen. n., sp. n., the only other nominal species of the new genus, by longer female body (368-515 vs 326-364 μm), longer distance from anterior end to anus (353-512 vs 310-348 μm) and longer stylet (17.0-19.9 vs 14.7-16.9 μm). In addition, the spermatheca is filled with round sperm vs empty in A. binhi gen. n., sp. n. and the cuticle has less densely spaced and less pronounced tubercles. D2/D3 sequences of the 28 rDNA gene clearly support the separation of Apratylenchus gen. n. from other Pratylenchidae and further distinguish the two new species from each other.
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Leinweber, P., G. Jandl, K. U. Eckhardt, J. Kruse, F. L. Walley, M. J. Khan, R. I. R. Blyth y T. Regier. "Nitrogen speciation in fine and coarse clay fractions of a Cryoboroll - new evidence from pyrolysis-mass spectrometry and nitrogen K-edge XANES". Canadian Journal of Soil Science 90, n.º 2 (1 de mayo de 2010): 309–18. http://dx.doi.org/10.4141/cjss09063.
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Soil clay fractions are usually enriched in nitrogen (N), but the chemical identity of this N is largely unknown. Therefore, we investigated organic N in fine and coarse clay of a clay-rich Cryoboroll by Curie-point pyrolysis-gas chromatography/mass spectrometry (Cp Py-GC/MS), Pyrolysis-field ionization mass spectroscopy (Py-FIMS) and synchrotron-based nitrogen K-edge X-ray absorption near edge structure (N-XANES) spectroscopy. The Cp Py-GC-MS revealed 30 structurally different N-containing compounds, such as substituted pyridines, pyrroles; pyrazines, pyrazoles, imidazoles, quinolines, side-chain N-containing benzenes, and single compounds of substituted benzotriazole, purine and indole. These accounted for about 10% of peak area in the Py-GC chromatograms. The Py-FIMS and N-XANES spectra indicated interlayer-NH4+ and revealed pyridinic and nitrilic N compounds, but disagreed in the proportions of pyrroles. All three complementary methods confirmed to different extents previous wet-chemical data on N-fractions in these samples, and provided new evidence for about 30 to 40% non-proteinaceous N as major constituent of the so-called “unknown organic N” in soil. Key words: Soil clay, organic matter, pyrolysis-mass spectrometry, synchrotron, X-ray absorption, NEXAFS
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Estévez, Alberto T. y Yomna K. Abdallah. "The New Standard Is Biodigital: Durable and Elastic 3D-Printed Biodigital Clay Bricks". Biomimetics 7, n.º 4 (10 de octubre de 2022): 159. http://dx.doi.org/10.3390/biomimetics7040159.
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In a previously published study, the authors explained the formal design efficiency of the 3D-printed biodigital clay bricks 3DPBDCB: a project that aimed to change the conventional methods of clay brick design and mass production. This was achieved by employing the behavioural algorithms of reaction-diffusion and the shortest path that were extracted from the exact material physical properties and hydrophilic behaviours of clay and controlled material deposition 3D printing to create sustainable clay bricks. Sustainability in their use in the built environment and their production processes, with full potential sustainability aspects such as passive cooling, thermal and acoustical insulation, and bio receptivity. The current work studies the mechanical properties of the 3D-printed biodigital clay bricks as elastic and durable clay bricks whose properties depend mainly on their geometrical composition and form. Each of the three families of the 3D-printed biodigital clay bricks (V1, V2, V3) includes the linear model of a double line of 0.5 cm thickness and a bulk model of 55% density were tested for compression and elasticity and compared to models of standard industrial clay bricks. The results revealed that the best elasticity pre-cracking was achieved by the V2 linear model, followed by the V3 linear model, which also achieved the highest post-cracking elasticity—enduring until 150 N pre-cracking and 200 N post-cracking, which makes the V3 linear model eligible for potential application in earthquake-resistant buildings. While the same model V3-linear achieved the second-best compressive strength enduring until 170 N. The best compressive strength was recorded by the V1 linear and bulk model enduring up to 240 N without collapsing, exceeding the strength and resistance of the industrial clay bricks with both models, where the bulk and the perforated collapsed at 200 N and 140 N, respectively. Thus, the mass production and integration of the V1 bulk and linear model and the V3 linear model are recommended for the construction industry and the architectural built environment for their multi-aspect sustainability and enhanced mechanical properties.
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Saputra, Deni Kusuma, Mariska Febrianti y Tito Parta Wibowo. "The Physical Fitness In Volleyball Club at SMAN 4 Of Central Bengkulu". Hanoman Journal: Physical Education and Sport 1, n.º 2 (20 de diciembre de 2020): 85–90. http://dx.doi.org/10.37638/hanoman.v1i2.280.
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This research was conducted with the aim of knowing the physical fitness in Volleyball Club at SMA N 4 of Central Bengkulu. The design of this research is descriptive quantitative research. The method used in this research is a survey method with data collection techniques using TKJI test. The population of this study were students at SMA N 4 of Central Bengkulu with a total sample of 30 people consisting of 20 male students and 10 female students using total sampling technique. The variables in this study were students at SMA N 4 of Central Bengkulu. The data were collected using the physical fitness test for the 16-19 year category (Depdiknas, 2010: 3), and the data analysis technique used was descriptive statistical techniques with frequency and percentage through categorization. Based on the results of research and data analysis obtained from the physical fitness test in Volleyball Club at SMA N 4 of Central Bengkulu, there were 3 people or 10% were categorized as good, 21 people or 70% were categorized as moderate and 6 people or 20% were categorized as lacking. Based on the results of this study, it can be concluded that the physical fitness of volleyball club at SMA N 4 of Central Bengkulu is in the moderate category.
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Simard, R. R., N. Ziadi, M. C. Nolin y A. N. Cambouris. "Prediction of Nitrogen Responses of Corn by Soil Nitrogen Mineralization Indicators". Scientific World JOURNAL 1 (2001): 135–41. http://dx.doi.org/10.1100/tsw.2001.329.
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Soil nitrogen mineralization potential (Nmin) has to be spatially quantified to enable farmers to vary N fertilizer rates, optimize crop yields, and minimize N transfer from soils to the environment. The study objectives were to assess the spatial variability in soil Nminpotential based on clay and organic matter (OM) contents and the impact of grouping soils using these criteria on corn grain (Zea mays L.) yield, N uptake response curves to N fertilizer, and soil residual N. Four indicators were used: OM content and three equations involving OM and clay content. The study was conducted on a 15-ha field near Montreal, Quebec, Canada. In the spring 2000, soil samples (n = 150) were collected on a 30- x 30-m grid and six rates of N fertilizer (0 to 250 kg N ha-1) were applied. Kriged maps of particle size showed areas of clay, clay loam, and fine sandy loam soils. The Nminindicators were spatially structured but soil nitrate (NO3–) was not. The N fertilizer rate to reach maximum grain yield (Nmax), as estimated by a quadratic model, varied among textural classes and Nminindicators, and ranged from 159 to 250 kg N ha-1. The proportion of variability (R2) and the standard error of the estimate (SE) varied among textural groups and Nminindicators. The R2ranged from 0.53 to 0.91 and the SE from 0.13 to 1.62. Corn grain N uptake was significantly affected by N fertilizer and the pattern of response differed with soil texture. For the 50 kg N ha-1rate, the apparent Nminpotential (ANM) was significantly larger in the clay loam (122 kg ha-1) than in the fine sandy loam (80 kg ha-1) or clay (64 kg ha-1) soils. The fall soil residual N was not affected by N fertlizer inputs. Textural classes can be used to predict Nmax. The Nminindicators may also assist the variable rate N fertilizer inputs for corn production.
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Liu, Yang, Meifang Zhu, Xiaoli Liu, Y. M. Jiang, Y. Ma, Z. Y. Qin, Dirk Kuckling y Hans-Jurgen P. Adler. "Mechanical Properties and Phase Transition of High Clay Content Clay/Poly(N-isopropylacrylamide) Nanocomposite Hydrogel". Macromolecular Symposia 254, n.º 1 (agosto de 2007): 353–60. http://dx.doi.org/10.1002/masy.200750851.
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Baharvand, Habibollah, Ghasem Naderi y Sedigheh Soltani. "SBR composites reinforced with N-isopropyl-N′-phenyl-P-phenylenediamine-modified clay". Chinese Journal of Polymer Science 29, n.º 2 (18 de octubre de 2010): 191–96. http://dx.doi.org/10.1007/s10118-010-1017-3.
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Assem, Yasser, A. I. Khalaf, A. M. Rabia, A. A. Yehia y T. A. Zidan. "Synthesis and characterization of hybrid clay/poly (N ,N- dimethylaminoethyl methacrylate) nanocomposites". Polymer Composites 37, n.º 10 (18 de abril de 2015): 2950–59. http://dx.doi.org/10.1002/pc.23492.
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