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Conclusions The variations and baseline levels of image QA parameters can differ significantly between MRI scanners. Scanner specific error thresholds based on parameter means and standard deviations are a viable option for detecting abnormal QA images.Several current publications have considered persons with obsessive compulsive disorder (OCD) as particularly vulnerable during the COVID-19 period, and to require more frequent symptom monitoring. The purpose of this study was to evaluate whether OCD exacerbated during the first wave of COVID-19 in children and adolescents. Twenty-nine children and adolescents with OCD were evaluated in the midst of the first outbreak of the COVID-19 pandemic in Israel (April-May 2020). Obsessive-compulsive symptoms (OCS) were assessed using the Clinical Global Impression Scale (CGI), by means of a functional questionnaire and by the Obsessive-Compulsive Inventory-child version (OCI-CV) questionnaires. Obsessive-compulsive symptoms were not found to have exacerbated during the period investigated, as evident by a lack of change in CGI severity scores and by improvement rather than deterioration among more participants, based on the CGI improvement scores. Additionally, the children and adolescents reported better general functioning during the COVID-19 period and had relatively low scores on the OCI-CV scale. Our findings indicate that Israeli children and adolescents with OCD coped well with COVID-19 during the first two months of the pandemic and mostly did not experience exacerbation of OCS. However, due to the short duration of exposure to the pandemic at the time of the study, social isolation and lockdown might have masked OCS; thus, further longitudinal studies are needed.The COVID-19 pandemic has caused a surge in the demand for medical masks over the past few months. Many countries and regions have experienced a shortage of masks and raw materials, as well as soaring prices. Understanding mask-saving behavior is an important way to help improve medical resource sustainability and respond to the outbreak. This study integrates the theory of planned behavior and normative activation to propose a new comprehensive theoretical framework, which aims to reveal people's mask-saving intentions (MSI) and behaviors in the post-pandemic period. Using the partial least squares structural equation modeling method, a total of 1057 questionnaires randomly collected from China were measured and empirically analyzed. Results indicate the following (i) Reducing the frequency of going-out is the main approach to saving masks in China, and the majority of people reuse a mask from two to five times. (ii) Personal norms, subjective norms, attitudes and perceived behavioral control all have significant positive effects on MSI; awareness of consequences and ascription of responsibility also indirectly affect MSI through personal norms. (iii) As for extended factors, environmental concerns, perceived risk and information publicity positively affect MSI, but supply chain performance does not have a significant role. (iv) Excessive information publicity may weaken the impact of personal norms, subjective norms and perceived risk on MSI. Given the above findings, some insightful management implications are proposed.The current COVID-19 pandemic is evolving rapidly into one of the most devastating public health crises in recent history. By mid-July 2020, reported cases exceeded 13 million worldwide, with at least 575,000 deaths and 7.33 million people recovered. In Oman, over 61,200 confirmed cases have been reported with an infection rate of 1.3. Spatial modeling of disease transmission is important to guide the response to the epidemic at the subnational level. Sociodemographic and healthcare factors such as age structure, population density, long-term illness, hospital beds and nurse practitioners can be used to explain and predict the spatial transmission of COVID-19. Therefore, this research aimed to examine whether the relationships between the incidence rates and these covariates vary spatially across Oman. Global Ordinary Least Squares (OLS), spatial lag and spatial error regression models (SLM, SEM), as well as two distinct local regression models (Geographically Weighted Regression (GWR) and multiscale geographically weighted regression MGWR), were applied to explore the spatially non-stationary relationships. As the relationships between these covariates and COVID-19 incidence rates vary geographically, the local models were able to express the non-stationary relationships among variables. Furthermore, among the eleven selected regressors, elderly population aged 65 and above, population density, hospital beds, and diabetes rates were found to be statistically significant determinants of COVID-19 incidence rates. In conclusion, spatial information derived from this modeling provides valuable insights regarding the spatially varying relationship of COVID-19 infection with these possible drivers to help establish preventative measures to reduce the community incidence rate.

Every emergency surgery performed is aimed at saving lives; however, during COVID-19 pandemic, surgeries are often postponed. Many existing recommendations take into account postponing surgery during a pandemic. How these surgeries can lead to increasing infection rates has not been widely published. This study aims to investigate the relationship of emergency orthopaedic surgery and the incidence rate of COVID-19.

This was a case series of 14 patients. The study was performed at the emergency department unit at a national tertiary hospital in Jakarta, Indonesia. A total of 14 patients underwent orthopaedic surgery in the emergency room of our institution. The mean age of the subjects was 40.07 ± 20.5 years. EGFR inhibitor Twelve (85.7%) were male patients and 2 (14.3%) were female patients. The average duration of surgery was 125 minutes. The most used type of anaesthesia was general anaesthesia for 6 operations (50%). Patients were hospitalized for an average length of 4 days. Three patients had infiltrates found on plain x-ray examination, which required further examination to determine whether the cause was COVID-19 infection or not. There was no ground glass appearance (GGO) in the three patients in further follow-up examination.

We found that emergency orthopaedic surgery was not associated with increasing number of COVID-19 cases. Factors including duration of surgery, length of stay, types of anaesthesia and comorbidities were also not associated with COVID-19 cases in this study.

We found that emergency orthopaedic surgery was not associated with increasing number of COVID-19 cases. Factors including duration of surgery, length of stay, types of anaesthesia and comorbidities were also not associated with COVID-19 cases in this study.

Evaluation of blood flow is useful for understanding the severity of central retinal vein occlusion (CRVO). Actual blood flow may be determined by the resistivity of the retinal vein in CRVO. We have previously evaluated mean blur rate (MBR) to reflect total retinal blood flow velocity in CRVO cases using laser speckle flowgraphy (LSFG). This study evaluated retinal total vascular resistance in CRVO cases using the new index of total capillary resistance (TCR) from LSFG.

We measured the TCR of 68 CRVO patients who visited Nagasaki University Hospital between 2009 and 2016 and 42 age-matched controls without systemic disease. We compared TCRs among control eyes, CRVO fellow eyes, and CRVO affected eyes. A CRVO threshold value was then obtained from the receiver operating characteristic curve.

MBR was significantly lower for CRVO affected eyes (20.3 ± 8.2) than for control eyes (37.5 ± 8.4;

< 0.01) and CRVO fellow eyes (36.4 ± 10.0;

< 0.01, Dunn's test). TCR was significantly higher for CRVO affected eyes (1.20 ± 0.55) than for control eyes (0.68 ± 0.2;

< 0.01) and CRVO fellow eyes (0.81 ± 0.28;

< 0.01, Dunn's test). The threshold for the presence of CRVO was 0.93 and area under the curve was 0.84.

By measuring TCR in addition to MBR, more detailed information regarding CRVO pathology can be obtained.

Comparison of values before and after treatment may be useful for evaluating the effects of treatment.

Comparison of values before and after treatment may be useful for evaluating the effects of treatment.The activity of many membrane proteins, such as receptors, ionic channels, transporters, and enzymes, is cholesterol dependent; however, mechanisms of the cholesterol-dependent regulation of protein functions remain obscure. Recent studies suggest that membrane proteins can directly interact with cholesterol owing to the presence of the cholesterol-recognizing amino-acid consensus (CRAC) motifs. One of the ways to verify and further develop this notion is a design of CRAC-containing peptides and investigation of their effects on cholesterol-dependent cell functions. Previously we showed that a newly constructed peptide RTKLWEMLVELGNMDKAVKLWRKLKR (peptide P4) containing two CRAC motifs modulates cholesterol-dependent interactions of cultured macrophages IC-21 with 2-μm particles. In this work, in order to clarify the role of CRAC-forming amino acids, we employed the same experimental system to test the activity of peptides closely related to P4 but with modified CRAC motifs. We found that peptide STKLSEMLSELGNlar.Only a few earlier clinical radiologic reports exist describing post-COVID-19 pulmonary fibrosis. We report a case of 74-year-old woman referred with dizziness and hypoxemic respiratory failure with chest high resolution computer tomography (HRCT) showing ground glass opacities and emphysema. The patient was tested for Sars-CoV-2 and resulted positive, she was treated with medical therapy and supported with mechanical ventilation. Despite initial clinical and radiological improvements, subsequently the respiratory failure worsened as ground glass opacities evolved, with the appearance of combined pulmonary fibrosis and emphysema and the patient eventually died. Development of pulmonary fibrosis after SARS-CoV-2 infection and the overlap with preexistent emphysema could be a fatal complication.Corona-virus infection that arose from China is now a global pandemic. It presents with a variety of pulmonary manifestations, most commonly in the form of ground glass pulmonary lesions and opacities. Less common manifestation such as pnuemothorax has been reported by some authors. In this study we report a 56-year-old man with Corona-virus disease presenting with tension pneumothorax, a rare and life-threatening complication of Corona-virus infection that has not been reported previously. In our case, after insertion of thoracostomy tube, the patient's symptoms improved. After about 1 year of Corona-virus pandemic, it still presents with some rare pulmonary and extrapulmonary manifestations, so, familiarity with these manifestations is important for a correct diagnosis and treatment.After first describing the issue contents (Biophysical Reviews-Volume 12 Issue 6), this Editorial goes on to provide a short round-up of the activities of the journal in 2020. Directly following this Editorial are two obituaries marking the recent deaths of Prof. Fumio Oosawa (Japan) and Dr. Herbert Tabor (USA)-two major figures in Biophysical/Biochemical science from the last 100 years.