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  • Oxford University Press (OUP)  (4)
  • 1
    Online Resource
    Online Resource
    Oxford University Press (OUP) ; 2021
    In:  Open Forum Infectious Diseases Vol. 8, No. Supplement_1 ( 2021-12-04), p. S316-S317
    In: Open Forum Infectious Diseases, Oxford University Press (OUP), Vol. 8, No. Supplement_1 ( 2021-12-04), p. S316-S317
    Abstract: Infection control measures against the coronavirus disease 2019 (COVID-19) within a hospital often rely on expert experience and intuition due to the lack of clear guidelines. This study surveyed current strategies for the prevention of the spread of COVID-19 in medical institutions. Methods Upon systematic review of the guidelines at the national level, 14 key topics were selected. Six hospitals were provided an open survey that assessed their responses to these topics between August 11 and 25, 2020. Using these data, an online questionnaire was developed and sent to the infection control teams of 46 hospitals in South Korea. The survey was conducted between January 31, 2021, and February 20, 2021. Results All 46 hospitals responded to the survey, and 24 hospitals (52.2%) had treated 100 or more cases of COVID-19. All hospitals operated screening clinics, and the criteria were respiratory symptoms (100%), fever (97.8%), and epidemiological association (93.5%). It was found that 89.1% (41/46) of hospitals allowed symptomatic patients to visit their general outpatient clinics if fever or respiratory symptoms were not associated with COVID-19. Most hospitals (87.2%; 34/39) conducted polymerase chain reaction (PCR) tests for all hospitalized patients. Moreover, 76.1% (35/46) of hospitals implemented preemptive isolation policies for hospitalized patients, of which 97.1% (34/35) were released from isolation after a single negative PCR test. A little over half of the hospitals (58.7%; 27/46) treated patients that met the national criteria for release from isolation but consistently had positive PCR results. Of these hospitals, 63% (17/27) used N95/KF94 masks, and 40.7% (11/27) used surgical masks without other personal protective equipment for treating them. Most hospitals (76.9%; 20/26) accommodated them in shared rooms when the cycle threshold value of the PCR test was more than a certain value (34.6%; 9/26), or after a certain period that satisfied the national criteria (26.9%; 7/26). Finally, 76.1% (35/46) of hospitals performed emergency procedures or operations on suspected patients. Table 1. Screening and selective treatment policy to prevent COVID-19 patients from entering the hospital Note Values are presented as number (%) Abbreviations: COVID-19, coronavirus disease 2019; PCR, polymerase chain reaction 1 This question requested the respondent to select multiple items. 2 Suspected cases of COVID-19 include fever, respiratory symptoms, and epidemiological associations with COVID-19 patients. Note Values are presented as number (%) Abbreviations: COVID-19, coronavirus disease 2019; PCR, polymerase chain reaction; PAPR, powered air-purifying respirator; Ct, cycle threshold 1 This question requested the respondent to select multiple items. 2 It includes infectious diseases, pulmonology, and the infection control and prevention office. 3 One hospital that wrote a non-categorical answer for the question was excluded. The hospital made a decision after discussing it with an infectious diseases specialist. Conclusion Various guidelines were being applied by each medical institution, but there was a lack of an explicit set of national guidelines to support them. Disclosures All Authors: No reported disclosures
    Type of Medium: Online Resource
    ISSN: 2328-8957
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2021
    detail.hit.zdb_id: 2757767-3
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  • 2
    Online Resource
    Online Resource
    Oxford University Press (OUP) ; 2022
    In:  The Computer Journal ( 2022-09-10)
    In: The Computer Journal, Oxford University Press (OUP), ( 2022-09-10)
    Abstract: We design a practical variant of an encoding for range Top-2 query (RT2Q) and evaluate its performance. Given an array $A[1,n]$ of $n$ elements from a total order, the range Top-2 encoding problem is to construct a data structure that answers ${\textsf{RT2Q}}{}$, which returns the positions of the first and second largest elements within a given range of $A$, without accessing the array $A$ at query time. We design the following two implementations: (i) an implementation based on an alternative representation of Davoodi et al.’s [Phil. Trans. Royal Soc. A, 2016] data structure, which supports queries efficiently. Experimental results show that our implementation is efficient in practice and gives improved time-space trade-offs compared with the indexing data structures (which keep the original array $A$ as part of the data structure) for range maximum queries. (ii) Another implementation based on Jo et al.’s ${\textsf{RT2Q}}{}$ encoding on $2 \times n$ array [CPM, 2016], which can be constructed in $O(n)$ time. We compare our encoding with Gawrychowski and Nicholson’s optimal encoding [ICALP, 2015] and show that in most cases, our encoding shows faster construction time while using a competitive space in practice.
    Type of Medium: Online Resource
    ISSN: 0010-4620 , 1460-2067
    RVK:
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    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2022
    detail.hit.zdb_id: 1477172-X
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  • 3
    In: FEMS Yeast Research, Oxford University Press (OUP), Vol. 20, No. 2 ( 2020-03-01)
    Abstract: Yarrowia lipolytica is a non-conventional, heterothallic, oleaginous yeast with wide range of industrial applications. Increasing ploidy can improve advantageous traits for industrial applications including genetic stability, stress resistance, and productivity, but the construction of knockout mutant strains from polyploid cells requires significant effort due to the increased copy numbers of target genes. The goal of this study was to evaluate the effectiveness of a mating-type switching strategy by single-step transformation without a genetic manipulation vestige, and to optimize the conventional method for increasing ploidy (mating) in Y. lipolytica. In this study, mating-type genes in haploid Y. lipolytica cells were scarlessly converted into the opposite type genes by site-specific homologous recombination, and the resulting MATB-type cells were mated at low temperature (22°C) with addition of sodium citrate with each MATA-type haploid cell to yield a MATA/MATB-type diploid strain with genetic information from both parental strains. The results of this study can be used to increase ploidy and for whole genome engineering of a yeast strain with unparalleled versatility for industrial application.
    Type of Medium: Online Resource
    ISSN: 1567-1356 , 1567-1364
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
    detail.hit.zdb_id: 2052068-2
    SSG: 12
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  • 4
    Online Resource
    Online Resource
    Oxford University Press (OUP) ; 2020
    In:  Open Forum Infectious Diseases Vol. 7, No. Supplement_1 ( 2020-12-31), p. S628-S629
    In: Open Forum Infectious Diseases, Oxford University Press (OUP), Vol. 7, No. Supplement_1 ( 2020-12-31), p. S628-S629
    Abstract: The aim of the present study is to analyze the clinical characteristics of adrenal insufficiency patients presenting fever. Methods A single-center retrospective study was conducted in an 846-bed tertiary hospital in South Korea. All hospitalized adult patients (age ≥19 years) who diagnosed with adrenal insufficiency between March 1, 2018 and June 30, 2019 were recruited. Only the first event per patient was included and patients were excluded if they: (1) had proven structural problems with adrenal or pituitary gland, (2) had a history of chemotherapy within 6 months prior to the diagnosis of adrenal insufficiency, and (3) had other medical conditions which may cause fever. Results A total of 150 cases were included: 45 (30.0%) had fever and 105 (70.0%) did not have fever at the time of diagnosis of adrenal insufficiency. The proportion of female patients was lower in patients with fever compared to those without fever (44.4% vs. 67.6%, P =0.008). In addition, patients with fever were diagnosed at 13.98 ± 14.51 days, which was later than 6.47 ± 6.91 of patients without fever (P & lt; 0.001). Higher proportion of patients with fever had history of surgical procedure within 6 months (33.3% vs. 11.4%, P =0.001) and antibiotic usage at the time of diagnosis (80.0% vs. 17.1%, P & lt; 0.001) compared to those without fever. Among clinical manifestations, general weakness (91.1% vs. 66.7%, P =0.002), headache (15.6% vs. 4.8%, P =0.044), and cough (17.8% vs. 4.8%, P = 0.022) were more frequently observed in patients with fever. There were no significant differences in clinical outcomes between two groups. According to the multivariate analysis, female sex (OR =0.32, 95% CI: 0.12–0.86, P = 0.024) lowered the risk for adrenal insufficiency with fever. In comparison, history of surgical procedure within 6 months (OR = 4.35, 95% CI: 1.23–15.39, P =0.023), general weakness (OR = 7.21, 95% CI: 1.71–30.37, P =0.007), and cough (OR = 17.29, 95% CI: 1.09–274.92, P =0.043) were significantly associated with adrenal insufficiency with fever. Table. Risk factors for adrenal insufficiency with fever using a multivariable logistic regression model Conclusion Approximately 30% of adrenal insufficiency presented fever. In patients with adrenal insufficiency and male sex, history of surgical procedure within 6 months, general weakness, and cough may be associated with presenting fever. Disclosures All Authors: No reported disclosures
    Type of Medium: Online Resource
    ISSN: 2328-8957
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
    detail.hit.zdb_id: 2757767-3
    Location Call Number Limitation Availability
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