New Fiber Bragg Grating Three-Dimensional Accelerometer Based on Composite Flexure Hinges

Multi-dimensional acceleration sensors are used in important applications in the aerospace, weapon equipment, and nuclear fields and have strict requirements in terms of performance, volume, and mass. Fiber Bragg grating acceleration sensors use optical wavelength signals as a medium for information transmission to effectively eliminate the influence of electromagnetic interference between multi-dimensional sensors. In this study, we designed a composite flexure hinge three-dimensional acceleration sensor. To this end, we investigated the coupling mechanism between a new integrated elastomer structure and fiber grating to determine the influence of structural parameters on the static and dynamic characteristics, volume, and mass of the sensor. By optimizing the strain distribution, amplitude, and frequency and coupling characteristics between dynamic dimensions, a design theory and a method for integrating the three-dimensional acceleration sensor were developed. The size of the optimized accelerometer is only 25 mm × 25 mm × 30 mm. Performance testing revealed that, along the three spatial dimensions, the sensor had sensitivities of 51.9, 39.5, and 20.3 pm/g, respectively, resonance frequencies of 800, 1125, and 1750 Hz, respectively, and a measurable frequency range of 0–250 Hz.

TIMSS 2019 Australia. Volume II: School and classroom contexts for learning

This is the second of two reports that look at the results of TIMSS 2019 and Australia’s performance. Volume I focuses specifically on the achievement results, detailing Australia’s results within the international context, and presents results for the Australian jurisdictions, and for the different demographic groups within Australia, including male and female students. This report, Volume II, presents the results from the contextual questionnaires, and examines the contexts in which learning and achievement occur, including home, school, and classroom contexts, as well as student attitudes. Each chapter focuses on different indicators that cover the school community, the school learning environment, mathematics and science teacher characteristics, mathematics and science classroom learning environments, and students’ attitudes and beliefs. Together, the different indicators of student and school life illustrate some of the many key aspects that make up the school experience.

A méhnyakrák okozta éves epidemiológiai és egészségbiztosítási betegségteher Magyarországon

Összefoglaló. Bevezetés: A méhnyakdaganatok kérdése kiemelten fontos, megoldatlan népegészségügyi probléma. A betegség terhe magas, ami elsősorban az alacsony és közepes jövedelmű országokban élőknél jelentkezik. Célkitűzés: Elemzésünk célja volt meghatározni a méhnyakdaganatok epidemiológiai és egészségbiztosítási betegségterhét Magyarországon a 2018-as évre vonatkoztatva. Adatok és módszerek: Elemzésünket a Nemzeti Egészségbiztosítási Alapkezelő (NEAK) finanszírozási adatbázisának 2018. évi adatai alapján végeztük az in situ (D06), a jóindulatú (D26.0) és a malignus (C53) méhnyakdaganatokra vonatkozóan. Az elemzés a NEAK által finanszírozott összes szolgáltatóra és ellátási formára kiterjed. Meghatároztuk az éves betegszámokat, a prevalenciát 100 000 lakosra, továbbá az éves egészségbiztosítási kiadásokat betegségcsoportonként és korcsoportos bontásban, valamennyi egészségbiztosítási ellátás tekintetében. Eredmények: A NEAK 2018-ban 1,276 milliárd Ft-ot (4,7 millió USD; 4,0 millió EUR) költött a méhnyakdaganatok kezelésére. A betegek és a finanszírozás döntő többsége a méhnyak rosszindulatú daganatához kapcsolható. A finanszírozásból a malignus méhnyakdaganatok részesedése 97%. Ellátási típusonként vizsgálva a legnagyobb kiadási tétel az aktívfekvőbeteg-szakellátásban jelenik meg, éves szinten 763,9 millió Ft, ami az összköltség 59,9%-a. A 100 000 lakosra jutó prevalencia az aktívfekvőbeteg-szakellátás igénybevételi adatai alapján 26/100 000 lakos. Következtetés: A méhnyakdaganatok kezelésének meghatározó költségeleme az aktívfekvőbeteg-szakellátás. Hazánkban a szervezett méhnyakszűrés korszerűsítéseként az új szűrési stratégiát megfelelő finanszírozási támogatással célszerű bevezetni, a szűrővizsgálatoknak, a hozzájuk kapcsolódó további diagnosztikus kivizsgálásnak és terápiának a teljesítményvolumen-korlát alóli mentesítésével. Orv Hetil. 2021; 162(Suppl 1): 22–29. Summary. Introduction: Cervical cancer is a particularly important, unresolved public health problem. The burden of the disease is high, primarily in those living in low- and middle-income countries. Objective: Our aim was to determine the annual epidemiological disease burden and health insurance cost of cervical cancer in Hungary in 2018. Data and methods: Our analysis was made according to the financial database of the National Health Insurance Fund Administration (NHIFA) of Hungary for the year 2018, which covers all service providers and maintenance forms financed by NHIFA. We analysed the in situ (D06), the benignant (D26.0) and the malignant (C53) cervical tumours. The data analysed included annual patient numbers and prevalence of care utilisation per 100 000 population furthermore annual health insurance costs calculated for disease and age groups. Results: In 2018, NHIFA spent 1.276 billion HUF (4.7 million USD, 4.0 million EUR) on the treatment of patients with cervical cancer. The majority of patients and funding can be linked to malignant cervical cancer (97%). Acute inpatient care was the major cost driver: 763.9 million HUF (59.9% of the total health insurance expenditures) annually. The prevalence is 26 per 100 000 population based on acute inpatient care data. Conclusion: Acute inpatient care was the major cost driver. In Hungary, as a modernization of organized cervical screening, it is appropriate to introduce a new screening strategy with appropriate financial support, by exempting screening tests, associated additional diagnostic testing, and therapy from the performance volume limit. Orv Hetil. 2021; 162(Suppl 1): 22–29.

TIMSS 2019 Australia Highlights

Trends in International Mathematics and Science Study (TIMSS) is an international sample study that assesses the mathematics and science achievement of Year 4 and Year 8 students every four years. Australia has participated in all cycles of TIMSS since it commenced in 1995 and over this 24-year period has collected rich data about trends in mathematics and science achievement. This document provides the highlights from Volume I of the main report TIMSS 2019 Australia. Volume I: Student performance. Volume I and these Highlights focus on the achievement results, detailing Australia’s results within the international context, as well as the results for the Australian jurisdictions, and for different demographic groups within Australia.

Economic Performance of Genetically Improved Reforestation Material in Joint Production of Timber and Carbon Sequestration: A Case Study from Finland

Genetically improved material has been proven to financially outperform unimproved material in timber production according to various studies. Genetic improvements in carbon sequestration are also promising, implying a possibility for further financial gains. Research Highlights: Including carbon pricing (i.e., timber production combined with carbon sequestration) with genetically improved material improves financial performance compared to pure timber production. Furthermore, the proportion of carbon benefit (%) of absolute bare land value fluctuates between 27% and 42%, indicating a substantial role of carbon sequestration to financial performance. Background and Objectives: Until now, economic analyses of the impact of tree improvement have mainly dealt with growth performance: volume yield or height growth. Yet planted forests can have a significant contribution to carbon sequestration, which will play a major role in carbon markets. This study focuses on comparing the financial performance between genetically improved and unimproved reforestation material when stand management is optimized according to timber production or to joint production (timber and carbon sequestration together). Another goal is to reveal possible differences in financial performance related to climatic conditions along the south–north gradient. Materials and Methods: The stand projections are based on simulations with and without genetic gains for joint production (timber + carbon) and merely timber production in eight locations in Finland. Stand-level optimization is applied for financial analyses. Results: Genetically improved reforestation material considerably enhanced financial performance when the joint production of timber and carbon was applied, regardless of the climatic region. Conclusions: If carbon pricing became a reality, there would be a distinctive shift in bare land values, which is further boosted by a genetic gain.

Abstract TP311: Organizational Culture Drives Confidence in Implementing Telestroke Care

Background: In its first 18 months, the VA National Telestroke Program (NTSP) conducted 800 consults at 30 sites. Data from staff at participating sites are collected in anonymous surveys. We aimed to determine factors associated with confidence in providing stroke care at these sites, and whether confidence is associated with performance on NTSP quality indicators. Methods: Surveys were sent to providers at participating sites at baseline (BL) and 6 - 12 months post-NTSP implementation (post-I). Survey questions included items about confidence providing stroke care and items from the Organizational Readiness to Change Assessment (ORCA). Confidence (0-10) was dichotomized into fully confident (mean score of 10) and not fully confident sites (mean <10). ORCA score was averaged by site. Covariates included site performance, volume, and time in the NTSP. We used a Kruskal Wallis analysis to examine the association of BL variables with post-I confidence, and a Pearson correlation test to examine the association between performance indicators and confidence. Results: 16 sites, with 54 staff members total responding (57% nurses, 26% providers, 17% administrators/other), had BL and post-I data. Five sites were fully confident at the post-I assessment, the remaining 11 had mean confidence scores 8.32 - 9.5. Site confidence improved over time (mean 7.97 at BL vs. 9.44 post-I, p = 0.004), but confidence was not associated with site performance on any NTSP indicator. Higher ORCA scores were significantly associated with post-I confidence (mean ORCA 4.46 vs. 4.01, p=0.04). Fully confident sites also had shorter NTSP participation times (mean 5.40 months in the fully confident sites vs. 13.45, P=0.01). BL confidence, rurality, and consultation volume were not associated with post-I confidence. Periodic retraining was the most commonly suggested program addition. Conclusions: Organizational culture, but not performance or consult volume, is significantly associated with staff confidence in providing stroke care via telestroke. The finding that less confident sites have longer participation times suggests that planned retraining should be a part of telestroke programs to help sustain site confidence in providing stroke care.