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Filters with random transmittance for improving resolution in filter-array-based spectrometers.
Oliver, J,Lee, Woong-Bi,Lee, Heung-No Optical Society of America 2013 Optics express Vol.21 No.4
<P>In this paper, we introduce a method for improving the resolution of miniature spectrometers. Our method is based on using filters with random transmittance. Such filters sense fine details of an input signal spectrum, which, when combined with a signal processing algorithm, aid in improving resolution. We also propose an approach for designing filters with random transmittance using optical thin-film technology. We demonstrate that the improvement in resolution is 7-fold when using the filters with random transmittance over what was achieved in our previous work.</P>
Role of biotechnology in rice breeding strategy of the Philippines
Oliver Escano Manangkil,Sailila Estilong Abdula,Eduardo Jimmy Pua Quilang 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.2
The breeding strategy implemented by the Philippine Rice Research Institute (PhilRice) is anchored in Agriculture 4.0 that aims to revolutionize the variety development system of the Philippines, thereby addressing the grand challenges the rice industry facing at present and in the future, considering the struggles of a sustainable agriculture in the face of global warming. It advocates a stronger and more cohesive variety development structure to keep up with the need of the times as well as climate change. Our breeders are challenged to produce a variety that will double the yield at the same time, climate and pest resistant with good eating quality and nutritious. Strategies implemented by PhilRice include the use of advanced methodologies in biotechnology and molecular biology as tools in developing rice varieties to hasten crop improvement, thereby addressing the grand challenges the rice industry facing at present and in the future.
Oliver Gembruch,Elias Lemonas,Yahya Ahmadipour,Ulrich Sure,Nicolai El Hindy,Richard Dodel,Oliver Müller 대한척추신경외과학회 2019 Neurospine Vol.16 No.2
Objective: Demographic changes have led to a higher incidence of C-2 fractures, especially in elderly patients. For patients with type II fractures, treatment remains controversial, as discussed by Anderson and D’Alonzo, due to the rising morbidity and mortality rates for any treatment. The aim of this study was to compare conservative and surgical management in patients with type II C-2 fractures regarding outcomes, complications, and the mortality rate. Methods: A retrospective analysis was performed of the medical records, X-rays, and/or computed tomography scans of patients ≥80 years of age with type II fractures who were admitted to our Department of Neurosurgery between January 1990 and December 2017. The success of treatment was evaluated 3 months after surgery. Results: In total, 125 patients were included, of whom 98 were treated surgically and 27 were treated conservatively. Surgical treatment was successful in 90.8% of cases, while conservative treatment was successful in 70.0%. The in-hospital mortality was 14.29% and the 3-month mortality was 27.8% in the surgical group, compared to 3.7% and 20% in the conservatively treated group. The in-hospital complication rate was 22.4% in the surgically treated patients and 7.4% in the conservatively treated patients. Conclusion: Surgical treatment of type II fractures seemed to be associated with higher success and complication rates than conservative treatment. Nevertheless, 3-month mortality was comparable in both groups. Therefore, we conclude that surgical treatment for type II fractures in elderly patients is superior to conservative management, although conservative treatment remains a valuable option in elderly patients with severe comorbidities.
The Influence of a Secretolytic Drug on Mucociliary Clearance of the Maxillary Sinus
Oliver Kaschke,Hans Behrbohm,Karin Sydow 대한비과학회 1997 Journal of rhinology Vol.4 No.1
To date, there has not been sufficient experimental evidence to demonstrate the pharmacological effect of secretolytic and mucolyticdrugs. Scintigraphic studies to detect the mucociliary clearance in the maxillary sinus before and after application of asecretolytic drug (Gelomyrtol® forte, G.Pohl-Boskamp, Hohenlockstedt, Germanym) were perfomed on four healthy persons andone patient having undergone sinus surgery. The most important parameters was the mucociliary transport velocity of the“regionof interest-maxillary sinus”and the increase of radioactivity accumulated in a swab placed in the middle nasal meatus. Measurements were done with a gamma-camera, 99m Technetium-sulphur colloid was used as the radiopharmacon. A dose of1 Mbq in 0.2 ml NaCl-solution was injected into the maxillary sinus. The results showed a clear increase of mucociliary transportvelocity in the maxillary sinus after intake of secretolytics in connection with an increase of radioactivity in the swab. The results can be explained by the secretolytic and secretomotoric effects of the investigated drug. The study reveals that etherealoils have secretolytic effects and also have a pharmacological effect on the mucociliary apparatus.
Oliver Ristow,Lena Hü,rtgen,Julius Moratin,Maximilian Smielowski,Christian Freudlsperger,Michael Engel,Jü,rgen Hoffmann,Thomas Rü,ckschloß 대한구강악안면외과학회 2021 대한구강악안면외과학회지 Vol.47 No.2
Objectives: It is unclear whether the extent of intraoral mucosa defects in patients with medication-related osteonecrosis of the jaw indicates disease severity. Therefore, this study investigated whether mucosal lesions correlate with the true extent of osseous defects in stage I patients. Materials and Methods: Retrospectively, all patients with stage I medication-related osteonecrosis of the jaw who underwent surgical treatment between April 2018 and April 2019 were enrolled. Preoperatively, the extent of their mucosal lesions was measured in clinical evaluations, and patients were assigned to either the visible or the probeable bone group. Intraoperatively, the extent of necrosis was measured manually and with fluorescence. Results: Fifty-five patients (36 female, 19 male) with 86 lesions (46 visible bone, 40 probeable bone) were enrolled. Intraoperatively, the necrotic lesions were significantly larger (P<0.001) than the preoperative mucosal lesions in both groups. A significant (P<0.05) but very weak (R2<0.2) relationship was noted between the extent of the mucosal lesions and the necrotic bone area. Conclusion: Preoperative mucosal defects (visible or probeable) in patients with medication-related osteonecrosis of the jaw do not indicate the extent of bone necrosis or disease severity.