BACKGROUND Delayed union or nonunion are frequent and feared complications in fracture treatment. Animal models of impaired bone healing are rare. Moreover, specific descriptions are limited although understanding of the biological course of pathogenesis of fracture nonunion is essential for therapeutic approaches. METHODS A rat tibial osteotomy model with subsequent intramedullary stabilizat...

The PI control of first-order linear passive systems through a delayed communication channel is revisited in light of the relative stability concept called σ-stability. Treating the delayed communication channel as a transport PDE, the passivity of the overall control-loop is guaranteed, resulting in a closed-loop system of neutral nature. Spectral methods are then applied to the system to obta...

We report the case of a middle-aged man where a diagnosis of pulmonary embolism (PE) was delayed due to initial underestimation of risk and over-reliance on D-dimer testing. The patient presented with pleuritic chest pain after a 5 h domestic flight. The treating clinicians presumed that this duration of immobilisation was insufficient to cause a PE, D-dimer was not measured and the patient was...

Moyer, M. J., E. Rose, D. A. Moreland, Raza, S. Brown, L. Scarselletta, B. Lohr, K. J. Odom, and Omland. 2022. Female song is structurally different from male in Orchard Orioles, a temperate-breeding songbird with delayed plumage maturation. Journal of Field Ornithology 93(1):3. https://doi.org/10.5751/JFO-00073-930103

We investigate the problem of online convex optimization with unknown delays, in which feedback a decision arrives an arbitrary delay. Previous studies have presented delayed gradient descent (DOGD), and achieved regret bound $$O(\sqrt{D})$$ by only utilizing convexity condition, where $$D\ge T$$ is sum delays over T rounds. In this paper, we further exploit strong to improve bound. Specificall...

Maternal vitamin D deficiency is one of the major risk factors for neonatal vitamin D deficiency followed by neonatal hypocalcaemia. The aim of this study is to determine the relationship between delayed neonatal hypocalcaemia and maternal vitamin D deficiency. This is a descriptive cross-sectional study. Target population of this study included all term and preterm neonates with delayed hypoca...

آگاهی از میزان تاج‌پوشش درختان در مناطق شهری به‌علت تأثیرات آن کاهش آلودگی‌‌های هوا، آلودگی صوتی، جلوگیری باد، ذخیرة نزولات آسمانی، و کنترل رواناب‌های بسیار ضروری است. ازآن‌جا‌که استخراج با روش‌های دستی وقت‌گیر پرهزینه است، تکنیک‌های سنجش دور می‌توانند ابزار مناسبی برای تأمین این داده‌ها باشند. طبقه‌بندی شیء‌پایه، انتخاب پارامترهای بهینة قطعه‌بندی، به‌ویژه پارامتر مقیاس، اهمیت بسیاری دارد معمول...

This pilot study was performed to compare the occurrence of long term motor complications in Parkinson's disease when the introduction of levodopa was delayed by an initial treatment with high doses of bromocriptine alone. The trial was a prospective randomised controlled study comparing 31 previously untreated patients with Parkinson's disease initially given bromocriptine alone to which levod...