bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cutting inserts made of glass and glass ceramics
Authors: Breidenstein Bernd , Müller-Cramm Dominik , Vogel Nils 
Published: November 2021

AbstractAgainst the background of the increasing cost and scarcity of raw materials that are required for the manufacture of cutting tools, the question of alternative cutting materials arises. Glasses and glass ceramics represent a possibility for this, the use of which has hardly been considered so far. This thesis is devoted to the question of whether cutting tools can be made from glass and glass ceramic materials at all. In addition, the question of how such tools can be used for which purposes is dealt with. First results on both questions are presented. The grinding of indexable inserts from the materials examined was possible without breaking corners and edges. Plastics can be easily machined with the tools produced. When machining aluminum, however, the tools made of glass fail completely, while those made of glass–ceramic show good results here too. These first results are intended to pave the way for further research in this area.
The Role of the Natural Antioxidant Mechanism in Sperm Cells
Authors: Kowalczyk Alicja 
Published: November 2021

AbstractMolecular studies of the causes of male infertility revealed a significant contribution of oxidative stress. When excessive amounts of reactive oxygen species (ROS) are produced or antioxidant activity fails, the equilibrium between oxidation and reduction is disrupted, causing oxidative stress (OS). High levels of ROS can have an adverse effect on sperm function through the initiation of DNA damage, lipid peroxidation, loss of membrane integrity and increased permeability, inactivation of cellular enzymes, and cell apoptosis. In addition to endogenous factors such as immature sperm, leukocytes, and varicocele, potential causes of excessive ROS can also be found exogenously in males with testicular hyperthermia or exposed to environmental toxicity. To maintain the optimal functioning of sperm cells, it is, therefore, necessary to balance the redox potential, i.e., to balance ROS by antioxidants. The purpose of this review is to present the antioxidant defense systems in semen.
A survey of irrigation water and soil quality that likely impacts paddy rice yields in Kilimanjaro, Tanzania
Authors: Mpanda Fridolin M. , Rwiza Mwemezi J. , Mtei Kelvin M. 
Published: November 2021

AbstractIn this study, the impacts of irrigation water quality and soil characteristics on paddy rice yields were investigated. Standard spectroscopy and spectrometry methods were used to analyze irrigation water and irrigated soil samples. The irrigation water had sodium adsorption ratio (SAR) values ranging from 0 to 3. The corresponding electrical conductivity (EC) values were between 0.2 and 0.7 dS/m and accounted for 14% of all samples—posing slight to moderate infiltration problem. Neither Na+ nor Cl− levels were high enough to cause toxicity problems in the irrigation water. For B, 54% of the samples were found to have moderate toxicity whereas ~ 14% of the samples indicated severe B toxicity in the irrigation water. For bicarbonate, about 86 and 14% of the irrigation water indicated slight-to-moderate and severe potential detrimental effect to plant growth, respectively. All trace elements in the irrigation water were too low to cause any harmful effect. Although soil EC, organic carbon (OC), and pH indicated favorable level, there were high standard deviation (SD) values in soil Fe and Zn. The mean value of Fe in soils was 19.8 mg/kg, indicating signs of Fe-deficiency. High SD values were also found in the total N (TN) content of the studied soils. Furthermore, a low soil K content was observed in the analyzed soil samples. Appropriate fertilizer application for improving nutrient deficiencies in the study area is highly recommended. Furthermore, on-farm management practices need to be guided by scientific findings from the present as well as other studies.
CircR2Disease v2.0: An Updated Web Server for Experimentally Validated circRNA–Disease Associations and Its Application
Authors: Fan Chunyan , Lei Xiujuan , Tie Jiaojiao , Zhang Yuchen , Wu Fang-Xiang , Pan Yi 
Published: November 2021

Abstract
With accumulating dysregulated circular RNAs (circRNAs) in pathological processes, the regulatory functions of circRNAs, especially circRNAs as microRNA (miRNA) sponges and their interactions with RNA-binding proteins (RBPs), have been widely validated. However, the collected information on experimentally validated circRNA–disease associations is only preliminary. Therefore, an updated CircR2Disease database providing a comprehensive resource and web tool to clarify the relationships between circRNAs and diseases in diverse species is necessary. Here, we present an updated CircR2Disease v2.0 with the increased number of circRNA–disease associations and novel characteristics. CircR2Disease v2.0 provides more than 5-fold experimentally validated circRNA–disease associations compared to its previous version. This version includes 4201 entries between 3077 circRNAs and 312 disease subtypes. Secondly, the information of circRNA–miRNA, circRNA–miRNA–target, and circRNA–RBP interactions has been manually collected for various diseases. Thirdly, the gene symbols of circRNAs and disease name IDs can be linked with various nomenclature databases. Detailed descriptions such as samples and journals have also been integrated into the updated version. Thus, CircR2Disease v2.0 can serve as a platform for users to systematically investigate the roles of dysregulated circRNAs in various diseases and further explore the posttranscriptional regulatory function in diseases. Finally, we propose a computational method named circDis based on the graph convolutional network (GCN) and gradient boosting decision tree (GBDT) to illustrate the applications of the CircR2Disease v2.0 database. CircR2Disease v2.0 is available at http://bioinfo.snnu.edu.cn/CircR2Disease_v2.0 and https://github.com/bioinforlab/CircR2Disease-v2.0.
Becoming-with fire and rainforest: Emergent curriculum and pedagogies for planetary wellbeing
Authors: Somerville Margaret J. , Powell Sarah J. 
Published: November 2021

AbstractIn this paper we propose the concept of ‘becoming-with’ in relation to the experience of the catastrophic fires in the summer of 2019–2020 in Australia, and their implications for research into young children’s response to bushfires, and their learning about bushfire recovery, which resulted in the development of an arts-based project to explore emergent curriculum and pedagogies for planetary wellbeing. We draw on Deleuze and Guattari’s theorising that ‘the self is only a threshold, a door, a becoming between two multiplicities’; and ‘Spatio-temporal relations’ as ‘not predicates of the thing but dimensions of multiplicities of events as encounters’ to theorise how ‘becoming-with’ fires enabled the development of emergent curriculum and pedagogies in an early learning centre, which can ultimately contribute to planetary wellbeing.
COVID-19 Vaccine Superstations as a Model to Rapidly Achieve Herd Immunity
Authors: Keehner Jocelyn , Torriani Francesca , Abeles Shira , Horton Lucy 
Published: November 2021

Background: The County of San Diego Health and Human Services (SDHHSA) established a goal to vaccinate 1.9 million residents as quickly as possible to attain vaccine induced herd immunity. This strategy would minimize the emergence of more transmissible variants, to which some vaccines may be less effective. With this strategy in mind, UC San Diego Health (UCSDH) collaborated with the local health authorities and the San Diego Padres to build a superstation in downtown San Diego in the parking lot of a baseball stadium. Methods: Building on the experience of rapidly vaccinating the UCSDH workforce in mid-December 2020, UCSDH and SDHHSA partnered to more efficiently distribute SARS-CoV-2 vaccine in San Diego County by building a vaccine superstation. The San Diego Padres offered their parking lot as the site; it was centrally located, easily accessible, quick to set up, and semipermanent. They also provided infrastructure support, event coordination, and internet capability. Occupying a space of ~6.5 acres, the superstation included 12 lanes serving 12 cars each, with ~3 cycles every hour, as well as a pedestrian walk-up station. Altogether, the site had the capacity for >5,000 vaccinations daily. This effort required coordination among administration, healthcare providers, IT specialists, and support staff—a daily workforce of >300 persons. The workforce needs were met using a multipronged approach, including flexible staffing, coordination of volunteers, and recruitment of previously retired providers. The private–public partnership enabled the superstation to be up and running in 5 days. Results: The operation was quickly ramped up to provide >6,000 vaccines daily. Initially only open to healthcare workers, on January 17 the superstation was expanded to persons aged >75 years, with further expansion to those aged ≥65 years on January 23. From January 11 to February 5, >100,000 individuals received their first dose of vaccine at the superstation, corresponding to ~31% of all San Diego county vaccinations. Conclusions: Vaccination of as many people as quickly as possible is essential to controlling the pandemic. Unchecked replication of SARS-CoV-2 allows increases the chance that the virus may develop mutations that render vaccines and therapeutics less effective. Our model vaccine superstation was replicated at 3 more sites around the county, the limited allocation of vaccine has been the only barrier to further expansion. A force of 10 superstations could administer a first dose to the remaining 1.6 million county residents within 32 days.Funding: NoDisclosures: None
The Impact of COVID-19 on Patient Safety: A Survey of Acute-Care Registered Nurses in New Jersey
Authors: Pogorzelska-Maziarz Monika , Lou Manning Mary , Gerolamo Angela , Johansen Mary , Grafova Irina , Crincoli Suzie , de Cordova Pamela 
Published: November 2021

Background: As the world grapples with the pandemic of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is important to consider the full impact of coronavirus disease 2019 (COVID-19) on healthcare delivery. Evidence from outbreaks of novel H1N1 and Ebola indicates that response to these types of outbreaks requires extraordinary resources, which are diverted from routine infection prevention and control activities. However, little is known about the impact of COVID-19 on adherence to patient safety protocols in hospitals, including infection prevention and control activities. We have described the reports of acute-care registered nurses (RNs) in adhering to patient safety protocols while delivering care to COVID-19 patients. Methods: In October 2020, we conducted a cross-sectional electronic survey of all active RNs in the state of New Jersey who provided direct patient care in a New Jersey hospital in an emergency or adult inpatient unit during the onset of the COVID-19 pandemic. Results: More than 3,027 RNs participated in the survey, for a 15% response rate based on number of eligible RNs. Moreover, 15% of respondents reported that they tested positive for COVID-19 during the initial peak of COVID-19 in New Jersey (March–June 2020). Most RNs reported that the number of patients they were assigned during the first peak of the pandemic affected their ability to adhere to patient safety protocols (eg, deep-vein thrombosis screening, central-line bundles, pressure ulcer prevention). In open-ended responses, they shared that being understaffed, the extra time it took for downing and doffing of PPE, the lack of access to ancillary staff (ie nursing assistants, runners), and the need to cluster care affected the quality of care. A nurse working in the intensive care unit (ICU) lamented, “We were sometimes given 4–5 ICU patients who were very sick and required a lot of care. Shortcuts had to be taken to prioritize the most important needs. Sometimes IVs remained longer than desired. Foleys remained in longer. To avoid PPE shortages, we didn’t go into the rooms nearly as much as we normally would, [and] things got missed.” Feelings of being overwhelmed and helpless permeated the nurses’ comments. Conclusions: When caring for COVID-19 patients, frontline nurses struggled with adherence to necessary patient safety protocols, which ultimately disrupted care delivery. Future research should quantify the extent to which the COVID-19 pandemic affected care delivery, including adherence to patient safety protocols among frontline providers.Funding: NoDisclosures: None
Predictors of COVID-19 Mortality in Residents of Flint, Michigan: Effect of Age, Gender, Smoking, and Health Plan
Authors: Younas Mariam , Osterholzer Danielle , McDonald Philip , Rios-Bedoya Carlos , Bachuwa Ghassan , Demian Sherry , Deliwala Smit , Kunaprayoon Lalida , Lakshman Harini , Beere Thulasi , Omaduvie Uyoyo 
Published: November 2021

Background: Current literature suggests that older age, hypertension, and diabetes mellitus confer a significant increased risk of mortality among patients with COVID-19. The purpose of this study is to further characterize the predictors of mortality in patients with COVID-19 in residents of Flint, Michigan, based on variables such as gender, age, smoking status, health insurance plan, and comorbidities. Methods: Hurley Medical Center, is a 443-bed public, nonprofit, teaching medical center located in Flint, Michigan. In total, 289 consecutive adult patients (aged ≥18 years) with confirmed SARS-CoV-2 infection by nasal polymerase chain reaction (PCR), admitted and discharged from our facility from March 2020 through June 2020, were retrospectively analyzed. Results: During the 4-month study period, the overall in-hospital case fatality rate (CFR) was 18% (51 of 289), with highest CFR in the age group aged 60–69 years (36%; P = .06). Nonsurvivors tended to be older with mean age of 67 years (95% CI, 61.6–71.8) versus survivors with mean age of 60 years (95% CI, 57.7–62.4). Highest mortality was seen in patients with Medicare or Medicaid as their sole health plan (39%, P = .59). Men comprised 51% (148 of 289) of the cohort with CFR of 21% versus 14% in females. Females tended to be younger with a higher body mass index (BMI) than their male counterparts (mean age of 58 years, mean BMI of 35 in women vs a mean age of 62 and BMI of 29 in men). A higher proportion of deceased were active smokers (51%; P = .02). CFR was highest in patients with hypertension (92%,; P = .15), followed by diabetes (44%; P = .85), chronic kidney disease (CKD) (31%; P = .10), obstructive sleep apnea (OSA) (28%; P = .25), asthma (22%; P = .64), and coronary artery disease (22%; P = .34). It was lowest in patients with end-stage renal disease (3%; P = .69). Conclusions: Our study suggests trends towards higher mortality with male sex, hypertension and diabetes, along with other comorbidities. Smoking seems to be a strong predictor of mortality in this cohort. Further studies are needed to ascertain the relationship between possible risk factors with COVID-19 mortality in residents of Flint, Michigan. Describing and understanding the potential risk factors is the key to improving outcomes in this population.Funding: NoDisclosures: None
Using Ultraviolet C (UVC) in Operating Rooms: A Hygiene Improvement
Authors: Bosco Roberta , Messina Gabriele , Amodeo Davide , Cevenini Gabriele , Gambelli Simona 
Published: November 2021

Background: Disinfection procedures are an essential aspect of preventing cross contamination, especially in situations where the risk of infection is higher, such as in operating rooms (ORs). Disinfection procedures in ORs at the end of each surgery session are not the same as final cleaning procedures. We assessed the difference in microbial contamination between different levels of disinfection, before T(0) and after T(1) the use of an ultraviolet C device (UVC-D). Methods: A cross-sectional study was conducted between December 2019 and August 2020 in a private clinic. Three sanitation levels (SL1–SL3) were compared for the reduction in colony-forming units (CFU) between T(0) and T(1): (1) no disinfection after surgery (SL1);, (2) after in-between cleaning (SL2), and (3) after terminal cleaning (SL3). UVC-D was used for 6 minutes, 3 minutes per bed side. Overall, 260 Petri dishes were used in 3 ORs, incubated at 36°C, and CFU were counted after 48 hours. Descriptive statistics, Wilcoxon test, and MANOVA for repeated measures were performed to verify the 95% statistical difference between T(0) and T(1), both on the whole sample and combined with the different SLs. Results: The unstratified analysis showed statistically significant differences (Wilcoxon test, p < 0.05) between T(0) and T(1), with means and standard deviations of 11.42 ± SD 41.19 CFU/PD and 5.91 ± SD 30.89, respectively. The Manova test for repeated measures, applied to 54 pairs of measurements, showed no significant difference between SLs in T(0)-T(1) CFU reduction. Overall, the mean percent reduction in CFU was 93.48% (CI95% = 86.97-99.99%). Conclusions: The results showed significant improvements in disinfection under any condition tested with UVC-D. Using the device immediately after surgery (SL1), before standard cleaning procedures, reduced CFUs by 97.3%. In some situations, UVC light was sufficient to reduce CFU to zero, even without chemical and mechanical cleaning. However, we do not recommend this approach; UVC light disinfection should be applied only after sanitization procedures because it does not remove dirt.Funding: UltraViolet Device, IncDisclosures: None
Effectiveness of a Multidisciplinary Team-Approach on Central-Line–Associated Bloodstream Infections
Authors: Suleyman Geehan , Ahrens Melissa , Keegan Ann 
Published: November 2021

Background: Although there has been a significant reduction in central-line–associated bloodstream infection (CLABSI) rates in the past decade with the implementation of evidence-based practices, an estimated 30,100 CLABSI occur each year in acute-care facilities. CLABSIs are associated with increased length of stay, cost, morbidity, and mortality, and they are preventable. In this study, we assessed the impact of a multidisciplinary team approach on CLABSI rates at a 319-bed teaching hospital in northwestern Ohio. Methods: In this before-and-after retrospective study, we compared the CLABSI rate per 1,000 central-line days, standardized infection ratio (SIR), and standardized utilization ratio (SUR) in the preintervention period (January 1, 2016, to December 31, 2018) to those of the intervention period (January 1, 2019, to December 31, 2020). Despite hospital-wide nursing education focusing on central-line maintenance in 2017, our SIR and SUR remained above the national benchmark. Starting in August 2018, we began to focus on insertion practices and physician education. An infection preventionist observed resident central-line insertion training and noted that there was no emphasis on infection prevention measures. There was a best practice knowledge gap. Thus, the indications for central-line use were updated, the insertion checklist was standardized, and the vascular access policy was revised to limit femoral and internal jugular vein use. Infection prevention training was provided to all providers involved in central-line insertions. Nurses were tasked with observing insertion of every central line and stopping the procedure if there is was an observed break in sterile technique. A central-line report listing indications and duration was developed and was sent to the nursing directors who assessed daily need with providers and prompted removal of unnecessary lines. The infection prevention medical director provided CLABSI prevention education to providers. Results: The CLABSI rate per 1,000 central-line days decreased from 0.90 in the preintervention period to 0.34 in the postintervention period, resulting in a 62% reduction in CLABSI rate. The SIR decreased from 0.886 to 0.323 (p-value <0.05), yielding a 64% reduction. The SUR also decreased from 1.156 to 0.874 (p-value <0.001) with a 24% reduction. Conclusion: A multidisciplinary team-approach with emphasis on standardized insertion checklist to ensure adherence to sterile technique and prompt removal of unnecessary central lines, and physician insertion training focusing on IP practices may potentially reduce CLABSI rates.Funding: NoDisclosures: None
Implementation of a Quality Improvement Role for Unlicensed Assistive Personnel and Effects on Infection Prevention
Authors: Schnell Natalie , DiBiase Lauren , Selimos Amy , Stancill Lisa , Summerlin-Long Shelley , Sickbert-Bennett Emily 
Published: November 2021

Background: Care bundles comprise evidence-based practices and interventions that are easily and consistently implemented while improving patient outcomes. As patient acuity and task overload continue to increase, infection prevention bundle and process measure compliance and data collection may become a lower priority for registered nurses (RNs). In early 2019, a certified nursing assistant (CNA) began full-time quality liaison work on a 53-bed inpatient adult oncology unit at UNC Medical Center to provide targeted compliance data collection and to correct deficits in real time when possible and within the appropriate scope of practice. Methods: The quality liaison CNA is highly motivated, with a relevant clinical background and effective communication skills. After conducting a gap analysis, the unit developed specific responsibilities for several areas of quality improvement, including infection prevention. In addition to rounding on all patients daily, the quality liaison (1) performs direct patient care tasks like Foley catheter care, (2) conducts patient education on topics such as chlorhexidine gluconate treatments, (3) performs all relevant process measure audits, and (4) easily relays missed or needed care to RNs with a door sign created as part of this initiative. High-risk findings, such as a loose central-line dressing, prompt immediate communication to the RN, with follow-up and escalation when necessary. Results: Patients and staff received the quality liaison well, and the increased attention to care bundle components and auditing ensured consistent, evidence-based care along with accurate and reliable data collection. Compared to the previous calendar year, the number of central-line audits on the unit increased by >1,400 by the end of 2019. Patient outcomes improved, and during 1 fiscal year, the unit achieved rate reductions between 40% and 55% for central-line–associated bloodstream infections, catheter-associated urinary tract infections, and healthcare-associated C. difficile infections. Staffing and logistical challenges imposed by the COVID-19 global pandemic have hampered this work because the quality liaison was redeployed to direct patient care intermittently. Correspondingly, from July to October 2020, the same infection rates increased between 30% and 353%. Conclusions: Having a designated quality liaison is an effective means to achieving quality improvements while remaining an integral member of the patient care team. As staffing has improved on this unit, the quality liaison has refocused efforts, and infection rates are beginning to improve. Given the success of the quality liaison role in improving quality outcomes on this unit, the hospital is exploring expansion of this model to additional units.Funding: NoDisclosures: None