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

Peripheral Arterial Disease in the Context of Acute Coronary Syndrome: A Comprehensive Analysis of Its Influence on Ejection Fraction Deterioration and the Onset of Acute Heart Failure

Background: Peripheral artery disease is a condition that causes narrowing of the arteries, impairing circulation to the extremities. Globally, it affects millions of people and is more prevalent in older adults and those with diabetes, high blood pressure, or high cholesterol. There is an overlap specific to polyvascular patients, and almost 50% of patients with PAD have coronary artery disease. Compelling evidence reveals a noteworthy association between PAD and major adverse cardiovascular events (MACEs) in individuals experiencing acute coronary syndrome (ACS) but limited knowledge exists regarding the influence of PAD on left ventricular systolic function during ACS. Methods: In a retrospective case–control study, we examined 100 participants who presented with ACS (mean age = 61.03 years, 80 [80%] males). The patients were divided into two groups: the ACS-PAD group (32 subjects, 74% of them with STEMI, 10% with NSTEMI, and 16% with NSTEACS) and the ACS-nonPAD group (68 participants). Results: This study highlighted that PAD negatively impacts patients with non-ST-segment elevation myocardial infarction (NSTEMI). These patients were likely to experience a decline of approximately 19.3% in their left ventricular ejection fraction (LVEF) compared to the ACS-nonPAD group (p = 0.003) and presented a worse clinical status (the PAD group correlated with Killip class IV, p = 0.049). Conclusion: Our analysis indicates that patients diagnosed with NSTEACS and PAD tend to have a higher LVEF of over 55% and a lower HEART score. Patients with PAD tend to have a functionally higher EF but clinically present with more unstable scenarios (pulmonary edema and cardiogenic shock). This is mainly driven by a higher prevalence of HFpEF in the PAD group. Looking closer at the PAD group, they have a higher incidence of comorbidities such as diabetes, hypertension, high cholesterol, CAD, and stroke, as well as being more active smokers

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