Numerical invariants and moduli spaces for line arrangements

Using several numerical invariants, we study a partition of the space of line arrangements in the complex projective plane, given by the intersection lattice types. We offer also a new characterization of the free plane curves using the Castelnuovo-Mumford regularity of the associated Milnor/Jacobian algebra.Comment: v3: A new proof of a result due to Tohaneanu, giving the classification of line arrangements with a Jacobian syzygy of minimal degree 2 is given in Theorem 4.11. Some other minor change

The Use of Patient Navigators to Improve Cancer Care for Hispanic Patients

Background Although the United States is one of the countries at the leading edge of medical breakthroughs and treatments, there are great disparities in the access to care among different socioeconomic strata. One of the most striking discrepancies regarding access to care is found among the ranks of the Hispanic population, which is the fastest growing minority in the United States, but for which cancer is the third leading cause of death. It is clear that better and timely treatment for cancer patients belonging to this minority is needed. Patient navigators can be an important tool to improve access to care of patients belonging to this minority group. Methods Through a systemic search, we identified seven articles that employed patient navigators for Hispanic cancer patients. The identified studies addressed very limited pathology, three studying breast and four colon cancer patients. Conclusions The presence of patient navigation can be an effective to remove impediments that limit the access to care in minority populations and can improve outcomes in Hispanic patients suffering from cancer. Further research to evaluate the cost of patient navigation in relationship to the added benefit early diagnosis, continued follow up and treatment is needed

Algorithm and software for salary computation for SME

The paper presents an algorithm and software to calculate salary according with the latest changes in labor and financial legislation, for small and medium companies. The interface is easy to use and manipulate, the reports can be printed and the application can be easy developed and up-to-date.software, salary, database

Using New Technologies to Learn Programming Languages

Current eLearning systems are increasingly used by both students and professors, considering the various facilities they offer. In the field of computer science, these eLearning platforms need to provide integrated program editors with facilities for compiling and running them. We propose a creative architecture of an eLearning system for Python which comes with new facilities related to the possibility to create content (lessons, exercises, content, and tests) inside of this platform. Thus, the professors can fully prepare their lessons and homework on our CSP (computer science platform) platform via the web interface. Similarly, the students can access this content via the platform and can solve their homework in this special space. Depending on the number of users the allocated resources dynamically change in order to ensure the proper functioning of the application, trying to keep lower operative costs

Spintronic devices based on graphene nanoribbons with transition metal impurities. Towards space applications

Very recent publications draw the attention to a possible revolution that nanotechnology can cause in aviation. The effervescence in the peak field of nanomaterials is remarkable, as evidenced by the number of Nobel prizes recently awarded. A class of nanomaterials, the nanosensors, whose object of study is the present work, represents a special interest in space applications. More specifically, this article proposes the synthesis of a nanosensor based on active control and manipulation of spin degrees of freedom in the graphene nanoribbons (GNR), the strongest known substance. Thus, the physical model, a GNR, is electrically connected to two electrodes. Different variations of Mn (Manganese) impurities in graphene, with the spins having preset configurations, are considered. When a magnetic field is detected, their spin change causing changes in the total energy and hence the variation of transmission function. Therefore, the concept of active control, which originated in the flight control and structural vibration problems, is naturally extended herein to the nanosensors synthesis. The used physico-mathematical model to determine the spin transport and the transmission function is based on density functional theory, Kohn-Sham equations and the SIESTA package. The differences between distinct GNR excited states were determined and it was established that the energy range overlaps the mid-infrared wavelengths. Therefore, structures of this kind may serve in spatial applications which exploit the infrared atmospheric window

Effect of Lingonberry Extracts on Blood Pressure and Myocardium in Paracetamol Intoxication

The 15 days of treatment with paracetamol, lingonberry dried extract or hidroalcoholic extract, alone or combined had following effects: blood pressure increases following administration of paracetamol and decreases under treatment with lingonberry extract, more obvious to 3: 1 lingonberry dried extract. Administration of Paracetamol, lingonberry extracts used simple or in combination with Paracetamol does not affect the myocardium histological structure. Histoenzimological there is a slight decrease of SDH activity in the groups P and PLd and an increase in Lha group. CyOx activity is increased in Lha and Ld group.The dried lingonberry extract has no apparent action on the myocardium instead has antihypertensive properties more obvious than the lingonberry alcoholic extract