6,011 research outputs found

    Chartering Turnaround: Leveraging Public Charter School Autonomy to Address Failure

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    Persistently low-achieving public schools around the country have received $5.8 billion from the federal School Improvement Grant (SIG) program, in addition to district and state funds, and other supplementary federal funds. Despite all of these sources of funding, most of the schools receiving them have failed to make a dramatic difference in improving student achievement. However, according to a new report jointly released by the National Alliance for Public Charter Schools and the Center on School Turnaround, autonomy provided by state charter laws can be better leveraged to improve school turnaround efforts.The report, Chartering Turnaround: Leveraging Public Charter School Autonomy to Address Failure, provides case studies of three charter management organizations (CMOs) that have successfully restarted low-achieving public schools, adding a valuable component to the limited body of research that exists about turnaround models. The report highlights the freedoms that benefit poor-performing schools most significantly, including: the autonomy to hire, retain and reward staff; the ability to adjust the length of school year, academic program and curriculum; and, the option to develop tailored approaches for finances and facilities

    Dynamic pricing with constant demand elasticity

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    The model of Gallego and van Ryzin (1994) is specialized to the case of constant elasticity of demand. A closed form is developed, which has an even simpler form than that arising with exponential demand, and possesses an excellent approximation. It is shown in this environment that monopoly is efficient, which means that all the behavior usually attributed to monopoly pricing is actually a consequence of efficient pricing and would arise even in a perfectly competitive environment. If the initial supply is not too large, it is shown that consumers have no incentive to delay their purchases in order to get a lower price at the average inventory prevailing at any time

    The 1969 Bryant Yearbook, The Bryant Ledger

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    Editor: Joseph T. Duffy Business Manager: David G. Pintka Advertising Manager: Marco D. Petruzzi Sports Editor: Benjamin M. Meyer Photography: Peter Verluyten Advisor: Lee Weaver`https://digitalcommons.bryant.edu/yearbooks/1034/thumbnail.jp

    Early mandibular canine-lateral incisor transposition: case report

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    Purpose. The main aim of the present study is to present a case of mandibular transposition between lateral incisor and canine in a paediatric patient. Materials and methods. A fixed multibracket orthodontic treatment was performed by means of a modified welded arch as to correct the transposition and obtaining a class I functional and symmetrical occlusion, also thanks to the early diagnosis of the eruption anomaly. Results. Our case report shows that a satisfactory treatment of mandibular transpositions is obtained when detected at an early stage of the tooth development. Conclusions. The main treatment options to be taken into consideration in case of a mandibular transposition are two: correcting the transposition or aligning it leaving the dental elements in their transposed order; in both cases, the followups show a stable condition, maintained without relapses. Several factors, such as age of the patient, occlusion, aesthetics, patient’s collaboration, periodontal support and duration of treatment have to be considered as to prevent potential damage to dental elements and support appliances. The choice between the two treatment approaches for mandibular lateral incisor/canine transpositions mainly depends on the time the anomaly is detected

    Inventory Model with Seasonal Demand: A Specific Application to Haute Couture

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    In the stochastic multiperiod inventory problem, a vast majority of the literature deals with demand volume uncertainty. Other dimensions of uncertainty have generally been overlooked. In this paper, we develop a newsboy formulation for the aggregate multiperiod inventory problem intended for products of short sales season and without replenishments. A distinguishing characteristic of our formulation is that it takes a time dimension of demand uncertainty into account. The proposed model is particularly suitable for applications in haute couture, i.e., high fashion industry. The model determines the time of switching primary sales effort from one season to the next as well as optimal order quantity for each season with the objective of maximizing expected profit over the planning horizon. We also derive the optimality conditions for the time of switching primary sales effort and order quantity. Furthermore, we show that if time uncertainty and volume uncertainty are independent, order quantity becomes the main decision over the interval of the primary selling season. Finally, we demonstrate that the results from the two-season case can be directly extended to the multi-season case and the limited resource multiple-item case

    Topical Tocopherol for treatment of reticular oral lichen planus: randomized, double-blind, crossover study

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    This randomized, double-blind, placebo-controlled crossover study assessed the efficacy of topical tocopherol acetate compared with placebo in easing oral discomfort in patients with reticular oral lichen planus (ROLP)

    Six months of high-dose xylitol in high-risk caries subjects—a 2-year randomised, clinical trial

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    Objectives The hypothesis was that the daily use of a high dose of a xylitol chewing gum for 6 months would reduce the increment of decayed permanent first molar surfaces (ΔD6S) in high-risk schoolchildren after 2 years. Methods In this randomised, clinical trial, 204 schoolchildren with a high caries risk were assigned to two experimental groups, xylitol and non-xylitol. Caries status, salivary mutans streptococci, and lactobacilli were re-evaluated 2 years later in 74 xylitol-treated and 83 non-xylitol-treated schoolchildren. Differences in mean ∆D6S between groups registered at baseline and at follow-up were evaluated using the nonparametric Mann–Whitney U test. Results Outcome was the development of detectable carious lesions initial (D1–D2) and manifest (D3) in the permanent first molars. In the xylitol group, the difference in proportion of children with decayed first permanent molars at baseline and follow-up was 1.43 % for manifest lesion and 2.86 % for initial lesions; while in the non-xylitol group was 10.26 % (p < 0.01) and 16.66 % (p < 0.01), respectively. A statistically significant difference regarding means was also observed in the non-xylitol group: the ∆D6S for manifest lesion was 0.18 (p = 0.03) and 0.67 (p = 0.02) for initial lesion. Conclusion The use of a chewing gum containing a high dose of xylitol for a period of 6 months has been shown to produce a long-term effect on caries development in high caries-risk children. Clinical relevance A school-based preventive programme based on 6 months’ administration of a high dose of xylitol via chewing gum proved to be efficacious in controlling caries increment in high-risk children
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