BiomedGrid

 

  Transmission Dynamics and Control of COVID-19 Pandemic: A Mathematical Modelling Study Abstract Background:  The coronavirus disease 2019 (COVID-19) pandemic remains a major global public health concern. It is assumed that the COVID-19 outbreak originated in Wuhan, China and spread worldwide as a result of international travel. Here, I used data from China to assess the impact of contact rate for COVID-19 transmission and decay of transmission rate due to implemented interventions for disease control. Method:  I developed a generalized susceptible-exposed-infectious-recovered (SEIR) compartmental model based on the disease clinical progression and interventions to explore the transmission dynamics of the global COVID-19 pandemic. I computed the basic reproduction number from the model to assess the epidemiology of the disease. Results:  I found that the number of asymptomatic was higher than symptomatic cases, and that COVID19 transmission is directly linked with contact rate between

  The Importance of Relational Skills in the Management of the team in the Healthcare Sector, With Particular Reference to the Nurse Leader Role: An opinion Introduction The clinical nurse leader is an innovative new role for meeting higher health‐care quality standards. What are the personality characteristics that the nurse leader must possess in order to get the right balance in a working group? The importance of technical skills is fundamental and essential in the management of an operational unit, but the latter is made up of people and therefore an efficient vision in an organization certainly has positives but is not enough to ensure the success of the working group [1-4]. Given these premises, it is essential to have tools useful for understanding interpersonal relationships, with a particular focus on conflict management. In a working group, where people have not been chosen, there are implicit and explicit rules, in which different cultural characteristics, personalities and

  Radiation-Induced Breast Angiosarcoma After Breast Cancer: A Case Report Abstract Radiation-induced breast angiosarcoma is a rare but very aggressive tumor, with high local recurrence rate and poor survival. The approximate incidence of this tumor after radiation therapy (RT) for breast cancer (BC) is 0.1%. The clinical presentation and diagnostic imaging are non-specific; so angiosarcomas are often initially confused with dermatoses attributable to RT, leading to delays in diagnosis. In this article we describe the clinical, radiological and pathological findings of a 76-year-old woman who developed an angiosarcoma two and a half years after RT for BC and died 11 months after this diagnosis. It represents a clinical, radiological and histological challenge. We must always consider and rule out this entity in the face of radioinduced vascular lesions, since early diagnosis and aggressive treatment with free margins are the main prognostic factors. Introduction Breast sarcomas are het

  The Mechanism of Radioprotective Effect and Immunoreactive Effect on  Vitamin c Abstract Background and Objective:   Vitamin c  preparations have a fairly high antioxidant effect, demonstrating increased efficiency for the immune system. Also, since  Vitamin c  is sensitive to heat, it is less safe to heat. Methods:  Radiation protection from death and stimulating leukocyte recovery by oral administrations consecutively of  Vitamin c , 200 mg/kg and 400mg/kg b.w., once a day, before whole-body x-rays irradiation was confirmed by tests with C3H mice, meanwhile, its radioprotective effecs compared to immunological enhancement. Based on the studies of survival, behavior of hematograms, and numbers of lymphocytes, whole body following irradiation, it was demonstrated that  Vitamin c  was an effective radioprotector. The survival of irradiated mice protected by  Vitamin c  was significantly increased and statistically higher than that of mice pre-treated with oral administration. After ad