Goal: The paper aims to investigate the insights of the resilience mechanisms of Brazilian small farms facing COVID-19.Design / Methodology / Approach: The research path involves three cases studies: two small but relevant producers of fruit and vegetable and a cooperative of family farmers in Rio de Janeiro through semi-structured interviews and c
On Soft Near-Prime Int-Ideals and Soft 1-Absorbing Prime Int-Ideals With Applications
In this study, we aimed to introduce two different generalizations of the soft prime int-ideal and clarify the relationships between the soft prime sony c int-ideal and the substructures of a ring.First, we explored new algebraic features of the soft prime int-ideal.We defined and exemplified essential concepts such as soft nilpotent elements, soft
Optimal control model of tumor treatment in the context of cancer stem cell
We consider cancer cytotoxic drugs as an optimal control problem to stabilize a heterogeneous tumor by attacking not the most abundant cancer mega motion lc100 cells, but those that are crucial in the tumor ecosystem.We propose a mathematical cancer stem cell model that translates the hierarchy and heterogeneity of cancer cell types by including hi
Cognitive dysfunction and negative symptoms in patients with schizophrenia and their first-degree relatives from simplex and multiplex families
Zhikun Zhang,1 Rong Zhang,2 Peng Qin,3 Liwen Tan4 1Mental Health Center, The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; 2Department of Psychiatry, Staff Hospital of Zhongyuan Oil Field Company, Puyang, Henan, China; 3Department of Psychiatry, Changde Rehabilitation Hospital, Changde, Hunan, China; 4Department