452 research outputs found

    Complications Caused by Contact Lens Wearing

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    Complications in wearing contact lenses are very rare and caused by poor maintenance, over-extended wear and wearing of contact lenses in a polluted environment. Regular control by a professional person can efficiently reduce the number of complications. This paper describes the most common risks factors for complications, and complications of wearing contact lenses with the classification according to the anatomic parts of the eye: eyelids, tear film, limbus, corneal epithelium, corneal stroma and corneal endothelium. Every complication has been described by the characteristic signs and symptoms, etiology and pathology, as well as therapy and prognosis. The paper describes how to select adequate customers as contact lens users, with proper education in order to ensure minimal incidence of complications due to contact lens wear, thus attracting a lot of satisfied and healthy customers

    Flexible temperature probe for biological systems

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    Probe is sufficiently flexible so that it can be worn comfortably for long periods of time, but relatively rigid to permit easy insertion. Body and electrical leads of small thermistor are imbedded in flexible fluorosilicone matrix contained in vinyl plastic tubing

    Program reformi BiH – suradnja ili članstvo?

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    This paper problematizes the content and meaning of the document "BiH Reform Programme", initially published for the period of November 2019 – November 2020, and later submitted under the same name for 2021 and 2022, and seeks to answer whether these documents are Annual National Programmes (ANP) which imply the activation of the NATO Membership Action Plan. The content of the document is analysed in relation to the prescribed form of NATO\u27s Annual National Programmes and compared to the documents of countries that were aspirants for NATO membership, such as Montenegro and North Macedonia, as well as the current aspirant Ukraine. Since the content and meaning of the document have been interpreted differently by politicians, military experts, and the media in Bosnia and Herzegovina, it is necessary to define the status of the "BiH Reform Programme" document through the prism of real facts. After the general elections in Bosnia and Herzegovina, a coalition agreement was reached between political parties for the establishment of the government at the state level, entitled "Guidelines, Principles, and Objectives in the Executive and Legislative Authority at the BiH Level for the Period 2022 – 2026". Since this agreement does not mention NATO cooperation or integration, the question of the real meaning of the "BiH Reform Programme" document and what we can expect in the future regarding relations with NATO is once again raised.U ovom se radu problematizira sadržaj i značenje dokumenta „Program reformi BiH”, koji je inicijalno objavljen za razdoblje studeni 2019. – studeni 2020., a poslije pod istim imenom poslan za 2021. i 2022. godinu. Traži se odgovor jesu li ovi dokumenti Godišnji nacionalni programi (ANP) koji znače aktiviranje Akcijskog plana za članstvo u NATO savezu. Sadržaj dokumenta analiziran je s obzirom na propisanu formu Godišnjih nacionalnih programa NATO-a i uspoređen je s dokumentima zemalja koje su bile aspirantice za članstvo u NATO-u: Crne Gore i Republike Sjeverne Makedonije te sadašnje aspirantice Ukrajine. Budući da je inicijalno od strane političara, vojnih stručnjaka i medija u Bosni i Hercegovini na različit način protumačen sadržaj i značenje dokumenta, potrebno je kroz prizmu stvarnih činjenica definirati status dokumenta „Program reformi BiH”. Nakon provedenih općih izbora u BiH, sklopljen je koalicijski sporazum između političkih stranaka za uspostavu vlasti na državnoj razini pod nazivom „Smjernice, načela i ciljevi u izvršnoj i zakonodavnoj vlasti na nivou BiH za razdoblje 2022. – 2026. godina”. Budući da ovaj sporazum ne spominje NATO suradnju ili integraciju, ponovno se nameće pitanje stvarnog značenja dokumenta „Program reformi BiH” i pitanje što možemo očekivati u budućnosti kada su u pitanju odnosi s NATO-om

    Ozonolysis of Enol Ethers 9. Synthesis and Ozonolysis of 5,6,7,8-Tetrahydrochroman

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    Die Regioselektivität der Übertragung der drei Ozonsauerstoffe auf die beiden olefinischen Kohlenstoffe im starren, substituierten Enolether 5,6,7,8-Tetrahydrochroman (3) wird durch Isolierung des w-Caprinolactons 5 anstelle des früher postulierten isomeren Oxacyclodecanons 8 bewiesen.The regioselectivity of the transfer of three oxygens of ozone to the olefinic carbons of the rigid substituted enol ether 5,6,7,8-tetrahydrochroman (3) is proved by isolation of w-caprinolactone 5 instead of an earlier claimed oxacyclodecanone 4

    EFFECTIVENESS OF MAGNETOTHERAPY IN THE TREATMENT OF PATIENTS WITH LUMBAR SYNDROME

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    Introduction: The term low back pain means a feeling of pain at rest or during movement in the lower, lumbar part of the spine. In order to reduce pain, various physical procedures are used: electrotherapy, thermotherapy, laser therapy, magnetotherapy, ultrasound therapy, cryotherapy, kinesitherapy and manual massage. Aim: To examine the effectiveness of magnetotherapy in the treatment of patients with lumbar syndrome. Materials and Methods: The study included patients treated from 01.01.2013. to 31.12.2015. year due to the diagnosis of lumbar pain syndrome in persons whose treatment process included magnetotherapy in the "Beljan" practice as a research group where were treated 113 patients (73 male and 40 female). There were 262 (114 male and 148 female) patients in the Health Center in Metković as a control group in which magnetotherapy was not included in the treatment of any patient. Pain was assessed on the basis of a visual analogue scale. Results: Research showed that the Chi-square test showed a statistically significant difference between the duration of physical therapy by days between the examined and control groups, χ2(2,n=375) = 237.715; p<0.001. Pearson\u27s correlation coefficient r=0.68 shows a large statistical difference between the duration of physical therapy of the examined and control groups. The chi-square test showed a statistically significant difference between the kinesitherapy procedures and the examined or control group, χ2(2,n=375) = 28.743; p<0.001. Pearson\u27s correlation coefficient r=-0.156 shows an extremely small statistically significant difference between the tested and control groups and kinesitherapy procedures. Conclusion: The shortest time that the patients spent on physical therapy in the examined group (80 patients) is 0 - 6 days of therapy, the shortest, and in the control group (197 patients) it is 7 - 10 days, the shortest. The working hypothesis that magnetotherapy affects the duration of treatment and the improvement of the functional status of patients with lumbar syndrome has been prove

    Virtual Rephotography: Novel View Prediction Error for 3D Reconstruction

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    The ultimate goal of many image-based modeling systems is to render photo-realistic novel views of a scene without visible artifacts. Existing evaluation metrics and benchmarks focus mainly on the geometric accuracy of the reconstructed model, which is, however, a poor predictor of visual accuracy. Furthermore, using only geometric accuracy by itself does not allow evaluating systems that either lack a geometric scene representation or utilize coarse proxy geometry. Examples include light field or image-based rendering systems. We propose a unified evaluation approach based on novel view prediction error that is able to analyze the visual quality of any method that can render novel views from input images. One of the key advantages of this approach is that it does not require ground truth geometry. This dramatically simplifies the creation of test datasets and benchmarks. It also allows us to evaluate the quality of an unknown scene during the acquisition and reconstruction process, which is useful for acquisition planning. We evaluate our approach on a range of methods including standard geometry-plus-texture pipelines as well as image-based rendering techniques, compare it to existing geometry-based benchmarks, and demonstrate its utility for a range of use cases.Comment: 10 pages, 12 figures, paper was submitted to ACM Transactions on Graphics for revie
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