Chemotherapy and radiotherapy:Could they contribute to the development of new tumors and metastases?

Objective: Both chemotherapy and radiotherapy have demonstrated high effectiveness as the best mechanisms in the fight against cancer;however, various studies seem to confirm that they could also favor the development of other unwanted effects of great importance for the patient. The main objective of this study is to find out the possible existence of this type of links. Method: This is a systematic literature review that seeks to find out which and how long cases of late interactions related to chemotherapy and radiotherapy treatments have been known. The bibliographic review was carried out based on references published in the last five years. Results: Various studies confirm the possible relationship between chemotherapy and radiotherapy treatments with the development of new undesirable side effects, especially as a consequence of the hepatotoxicity generated in the case of chemotherapy and radiation in radiotherapy. However, in this last type of treatment, the problems raised are really few. Conclusions: The existence of a risk of suffering new unwanted side effects after different types of treatment seems to have been demonstrated, especially in the case of chemotherapy. In the case of radiotherapy, adverse effects are practically non-existent, although they are no less important.

Optimal Location to Use Solar Energy in an Urban Situation

This study conducted in Lima, Peru, a combination of spatial decisionmaking system and machine learning was utilized to identify potentialsolar power plant construction sites within the city. Sundial measurementsof solar radiation, precipitation, temperature, and altitude were collectedfor the study. Gene Expression Programming (GEP), which is based on theevolution of intelligent models, and Artificial Neural Networks (ANN) wereboth utilized in this investigation, and the results obtained from each werecompared. Eighty percent of the data was utilized during the training phase,while the remaining twenty percent was utilized during the testing phase. Onthe basis of the findings, it was determined that the GEP is the most suitablenetwork for predicting the location. The test state’s Nash-Sutcliffe efficiency(NSE) was 0.90, and its root-mean-square error (RMSE) was 0.04. Followingthe generation of the final map based on the results of the GEP model, itwas determined that 9.2% of the province’s study area is suitable for theconstruction of photovoltaic solar power plants, while 53.5% is acceptable and37.3% is unsuitable. The ANN model reveals that only 1.7% of the study areais suitable for the construction of photovoltaic solar power plants, while 66.8%is acceptable and 31.5% is unsuitable.

Reasoning on the Origin of the Human Language

To solve the problem of the origin of the human language,it is proposed to use the principle of“ontogeny recapitulates phylogeny”under the assumption that the development of the child’s language to a certain extent reflects the development of the human language.Taking as a basis the first sounds pronounced by a child,phonostems are determined and used when comparing etymological complexes for several semantic fields on lexical materials of several European and Asian languages.According to the results of the comparison,the effectiveness of the used principle has been estimated.

Freeform path fitting for the minimisation of the number of transitions between headland path and interior lanes within agricultural fields

Within the context of in-field path planning this paper discusses freeformpath fitting for theminimisation of the number of transitions between headland path and interior laneswithin agricultural fields.This topic ismotivated by two observations.Due to crossings of tyre traces such transitions in practice often cause an increase of compacted area.Furthermore,for very tight angles between headland path and interior lanes undesired hairpin turnsmay becomenecessary due to the limited agility of in-field operating tractors.Byminimising the number of interior lanes both detrimental effects can be mitigated.The potential of minimising the number of interior lanes by freeform path fitting is evaluated on 10 non-convex real-world fields including obstacle areas,and compared to the more common technique of fitting straight interior lanes.