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We consider the problem of computing the Maximal Exact Matches (MEMs) of a given pattern \(P[1\mathinner{.. }m]\) on a large repetitive text collection \(T[1\mathinner{.. }n]\) over an alphabet of size \(\sigma\) , which is represented as a (hopefully much smaller) run-length context-free grammar of size \(g_{rl}\). We show that the problem can be solved in time \(O(m^{2}\log^{\epsilon}n)\) , for any constant \(\epsilon\,{\gt}\,0\) , on a data structure of size \(O(g_{rl})\). Further, on a locally consistent grammar of size \(O(\delta\log\frac{n\log\sigma}{\delta\log n})\) , the time decreases to \(O(m\log m(\log m+\log^{\epsilon}n))\). The value \(\delta\) is a function of the substring complexity of \(T\) and \(\Omega(\delta\log\frac{n\log\sigma}{\delta\log n})\) is a tight lower bound on the compressibility of repetitive texts \(T\) , so our structure has optimal size in terms of \(n\) , \(\sigma\) , and \(\delta\). We extend our results to several related problems, such as finding \(k\) -MEMs, MUMs, rare MEMs, and applications. Categories and Subject Descriptors: E.1 [Data structures]; E.2 [Data storage representations]; E.4 [Coding and information theory]: Data compaction and compression; F.2.2 [Analysis of algorithms and problem complexity]: Nonnumerical algorithms and problems—Pattern matching, Computations on discrete structures, Sorting and searching. [ABSTRACT FROM AUTHOR]

Pollen quality is one of the most important factors in breeding programs because of its effects on seed formation. For an effective breeding program, breeders must know pollen viability, germination rate, and the duration of maintaining pollen viability. This study was carried out to determine pollen viability and germination rates of 'Chic' and 'Barolo' spray chrysanthemum varieties kept at different temperatures and times. Pollen from both varieties was obtained from plants grown in a fully automated greenhouse. Pollens were stored at +24°C and +4°C for 7 days. Pollen viability was determined by the TTC method and germination rates were determined by the hanging drop method with modified ME3-m medium, daily for 8 days, including day 0. The 'Chic' varieties had more viable pollen than the 'Barolo' variety. Viable pollen and germination rates tended to decrease continuously with time. On the 7th day, the germination rate decreased by 93.44% and 71.64% in the 'Barolo' and 'Chic' varieties, respectively. However, the capacity to maintain the viability of pollen kept at +4°C was found to be better in both varieties. In the study, it was concluded that the pollen should be applied freshly but stored at +4°C when necessary. The pollen kept at +24°C can be used for up to 2 days. This period can be extended up to 4 days at +4°C, depending on the variety. [ABSTRACT FROM AUTHOR]

Coherence is a foundational feature of quantum mechanics and is increasingly becoming recognized as a key resource for quantum theory. Based on coherence measure, our goal in this work is to evaluate the average coherence of a quantum state with respect to a broad class of informationally complete symmetric measurements by using Wigner–Yanase skew information. In addition, the relationship between these average coherence is also clearly established according to the different efficiency parameters. These results may further enrich the properties of average coherence. [ABSTRACT FROM AUTHOR]

Chrysanthemum is one of the major crops in the word and it is grown for two basic ways for cut flowers and potted plants, depending of market demand. In the last years the cultivated areas with Chrysanthemum have gained a significant growth. Also, due to the progress made in the selection of chrysanthemum, in order to obtain valuable varieties grown in pots, knowledge of characteristics morphology has of major importance, and the enrichment of the existing assortment in our country is the main objective of the growers. The flowers occur in various forms, and can be daisy-like, decorative, pompon or buttons. In addition, many colors are available, such as white, yellow, red, purple and green. The present paper aimed to study the main characteristics of Chrysanthemum grown in pots of the following cultivars: `Vanilla`, `Eté Indien`, `Camina Red`, `Pamplona Jogger White`, `Amelia Jogger`, `Avalon Salmon`. The measurements of the experiment were focused on the vegetative growth of the cultivars listed above (plant diameter, circumferences of the plant, height of plant, number of stems/plant, number of branches/stem, number of flowers/plant and the diameter of the flowers) in order to diversify the current Chrysanthemum assortment and to promote the cultivation of the most valuable cultivars. The obtained results shown that `Pamplona Jogger White` cultivar registered increases in the case of the diameter, circumference of the plant, and diameter of the flowers. On the opposite side the 'Camina Red' cultivar recorded the largest number of branches/stem and number of flowers/plant and the 'Avalon Salmon' cultivar has the highest values in terms of plant height and number of stems/plant.

Abstract Introduction This study assessed the feasibility and acceptability of FRESH (Families Reporting Every Step to Health), a theory-based child-led family physical activity (PA) intervention delivered online. We also assessed the preliminary effectiveness of the intervention on outcomes of interest and whether pre-specified criteria were met to progress to a full-scale definitive trial. Methods In a three-armed randomised pilot trial, 41 families (with a 7–11-year-old index child) were allocated to a: ‘family’ (FAM), ‘pedometer-only’ (PED), or a no-treatment control (CON) arm. The FAM arm received access to the FRESH website, allowing participants to select step challenges to ‘travel’ to target cities around the world, log their steps, and track progress as families virtually globetrot. FAM and PED arms also received family sets of pedometers. All family members could participate in the evaluation. Physical (e.g., fitness, blood pressure), psychosocial (e.g., social support), behavioural (e.g., objectively-measured PA), and economic (e.g., expenditure for PA) data were collected at baseline, 8- and 52-weeks. Results At 8- and 52-weeks, 98 and 88% of families were retained, respectively. Most children liked participating in the study (> 90%) and thought it was fun (> 80%). Compared to the PED (45%) and CON (39%) arms, a higher percentage of children in the FAM (81%) arm reported doing more activities with their family. Adults agreed that FRESH encouraged their family do more PA and made their family more aware of the amount of PA they do. No notable between-group differences were found for childrens’ minutes in moderate-to-vigorous PA. Sizeable changes of 9.4 (95%CI: 0.4, 18.4) and 15.3 (95%CI: 6.0, 24.5) minutes in moderate-to-vigorous PA was found for adults in the FAM group compared to those in the PED or CON groups, respectively. No other notable differences were found. Conclusion This study demonstrates feasibility and acceptability of the FRESH intervention. All progression criteria were at least partially satisfied. However, we failed to recruit the target sample size and did not find a signal of effectiveness on PA particularly long-term or in children. Further refinements are required to progress to a full-scale trial. Trial registration This study was prospectively registered ( ISRCTN12789422 ) on 16/03/2016.

Background: Family-based physical activity promotion presents a promising avenue for promoting whole-family physical activity, but high-quality research is lacking. Objectives: To assess the feasibility, acceptability and preliminary effectiveness of FRESH (Families Reporting Every Step to Health), a child-led online family-based physical activity intervention; and to identify effective and resource-efficient family recruitment strategies. Design: The project consisted of (1) a randomised feasibility trial, (2) a randomised controlled pilot trial and (3) a systematic review and Delphi study. Setting: Norfolk/Suffolk counties, UK. Participants: Families, recruited from schools, workplaces and community settings, were eligible to participate if one child aged 7–11 years and one adult responsible for their care provided written consent; all family members could participate. Interventions: The FRESH intervention, guided by self-determination theory, targeted whole families and was delivered via an online platform. All family members received pedometers and were given website access to select family step challenges to ‘travel’ to target cities around the world, log steps, and track progress as they virtually globetrotted. Families were randomised to FRESH intervention, pedometer-only or control arm. Main outcome measures: Physical (e.g. blood pressure), psychosocial (e.g. family functioning) and behavioural (e.g. device-measured family physical activity) measures were collected at baseline and at 8- and 52-week follow-up. A mixed-methods process evaluation assessed the acceptability of the intervention and evaluation. Data sources review: Systematic search of four databases (Cochrane Library, PubMed, PsycINFO and SCOPUS). Review methods: Articles were screened in duplicate, and data extraction was fully checked. Academic experts participated in the three-round Delphi study. Data were combined to identify effective and resource-efficient family recruitment strategies. Inclusion criteria: Included generally healthy school-aged children and at least one adult; intervention attempted to change physical activity, sedentary behaviour, screen use, diet, or prevent overweight/obesity in multiple family members; presented relevant measure of effect in children and adults. Results: The feasibility study (12 families, 32 participants; 100% retention at 8 weeks) demonstrated the feasibility and acceptability of FRESH, but highlighted that adaptations were required. Of 41 families recruited in the pilot study (149 participants), 98% and 88% were retained at the 8-week and 52-week follow-up, respectively. More children in the FRESH arm self-reported doing more family physical activity, and they thought that FRESH was fun. There were no notable between-group differences in children’s outcomes. Change in moderate to vigorous physical activity at 8 weeks favoured FRESH intervention adults [vs. control: 9.4 minutes/week (95% confidence interval 0.4 to 18.4) vs. pedometer only: 15.3 (95% confidence interval 6.0 to 24.5)], and was stronger in fathers, but this was not maintained. In 49 included studies, apart from recruitment settings and strategies used (reported in 84% and 73% of the studies, respectively), recruitment details were scarce. School-based recruitment was predominant. The Delphi study identified a wide range of recruitment settings and strategies. Limitations: Recruitment was the main limitation of the FRESH studies; generalisability of the proposed recruitment strategies may be limited. Conclusions: This study has demonstrated the feasibility and acceptability of the FRESH intervention. However, we failed to recruit the target sample size and were unable to demonstrate a signal of effectiveness. Future research should employ a multifaceted recruitment approach. Future work: Further refinements to intervention delivery and recruitment methods should be investigated. Study registration: Current Controlled Trials ISRCTN12789422 and PROSPERO CRD42019140042. Funding: This project was funded by the National Institute for Health Research (NIHR) Public Health Research programme and will be published in full in Public Health Research; Vol. 9, No. 9. See the NIHR Journals Library website for further project information.

Abstract Background There is a need for high-quality research aiming to increase physical activity in families. This study assessed the feasibility and acceptability of FRESH (Families Reporting Every Step to Health), a child-led family-based physical activity intervention delivered online. Methods In a two-armed randomised feasibility study, 12 families (with an 8–10-year-old index child) were allocated to a ‘child-only’ (CO) or ‘family’ arm (FAM) of the theory-based FRESH intervention. Both received access to the FRESH website, allowing participants to select step challenges to ‘travel’ to target cities around the world, log their steps, and track their progress as they virtually globetrot. Only index children wore pedometers in CO; in FAM, all family members wore pedometers and worked towards collective goals. All family members were eligible to participate in the evaluation. Mixed-methods process evaluation (questionnaires and family focus groups) at 6-week follow-up consisted of completing questionnaires assessing acceptability of the intervention and accompanying effectiveness evaluation, focussed on physical (e.g. fitness, blood pressure), psychosocial (e.g. social support), and behavioural (e.g. objectively-measured family physical activity) measures. Results All families were retained (32 participants). Parents enjoyed FRESH and all children found it fun. More FAM children wanted to continue with FRESH, found the website easy to use, and enjoyed wearing pedometers. FAM children also found it easier to reach goals. Most CO families would have preferred whole family participation. Compared to CO, FAM exhibited greater website engagement as they travelled to more cities (36 ± 11 vs. 13 ± 8) and failed fewer challenges (1.5 ± 1 vs. 3 ± 1). Focus groups also revealed that most families wanted elements of competition. All children enjoyed being part of the evaluation, and adults disagreed that there were too many intervention measures (overall, 2.4 ± 1.3) or that data collection took too long (overall, 2.2 ± 1.1). Conclusion FRESH was feasible and acceptable to participating families; however, findings favoured the FAM group. Recruitment, intervention fidelity and delivery and some measurement procedures are particular areas that require further attention for optimisation. Testing the preliminary effectiveness of FRESH on family physical activity is a necessary next step. Trial registration This study was registered and given an International Standard Randomised Controlled Trials Number (ISRCTN12789422). Registered 16 March 2016. http://www.isrctn.com/ISRCTN12789422

This paper will focus on my endeavour to 'open up' the counselling room by initiating a conversation between two young women I was meeting with for individual counselling. The conversation that commenced between these two young women took the form of letters that were constructed from transcripts of our recorded conversations. I will discuss some of the ideas that underpinned and motivated this exchange, as well as reflect on some of the key considerations involved within the process. I will finish by trying to demonstrate some of the flow of conversation that made it possible for new understandings, preferred identities and shared contributions to be generated. [ABSTRACT FROM AUTHOR]

Introduction: Family-based physical activity (PA) interventions present a promising avenue to promote children's activity; however, high-quality experimental research is lacking. This paper describes the protocol for the FRESH (Families Reporting Every Step to Health) pilot trial, a child-led family-based PA intervention delivered online., Methods and Analysis: FRESH is a three-armed, parallel-group, randomised controlled pilot trial using a 1:1:1 allocation ratio with follow-up assessments at 8 and 52 weeks postbaseline. Families will be eligible if a minimum of one child in school Years 3-6 (aged 7-11 years) and at least one adult responsible for that child are willing to participate. Family members can take part in the intervention irrespective of their participation in the accompanying evaluation and vice versa.Following baseline assessment, families will be randomly allocated to one of three arms: (1) FRESH; (2) pedometer-only or (3) no-intervention control. All family members in the pedometer-only and FRESH arms receive pedometers and generic PA promotion information. FRESH families additionally receive access to the intervention website; allowing participants to select step challenges to 'travel' to target cities around the world, log steps and track progress as they virtually globetrot. Control families will receive no treatment. All family members will be eligible to participate in the evaluation with two follow-ups (8 and 52 weeks). Physical (eg, fitness and blood pressure), psychosocial (eg, social support) and behavioural (eg, objectively measured family PA) measures will be collected at each time point. At 8-week follow-up, a mixed methods process evaluation will be conducted (questionnaires and family focus groups) assessing acceptability of the intervention and evaluation. FRESH families' website engagement will also be explored., Ethics and Dissemination: This study received ethical approval from the Ethics Committee for the School of the Humanities and Social Sciences at the University of Cambridge. Findings will be disseminated via peer-reviewed publications, conferences and to participating families., Trial Registration Number: ISRCTN12789422., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY. Published by BMJ.)