Proportions of D. folliculorum and D. brevis, and also symptoms of blepharitis were similar in the control group and immunocompromised patients. Immunosuppression did not seem to increase the rate of Demodex spp. infection.
Editor, T he ectoparasite Demodex folliculorum (Simon 1843) is most common parasite of humans. In the eye, D. folliculorum is found in the eyelash follicle. The aim of this study was to examine the prevalence of D. folliculorum in the eyelashes in patients with haematologic disorders.Eyelashes were collected from 95 patients of the Clinic of Haematology Pomeranian Medical University, Szczecin, Poland, and from 1091 healthy controls. There were 47 (49%) women and 48 (51%) men in the patients group (age range: 58.6 ± 13.1) and 759 (69.6%) women and 332 (30.4%) men in the control group (age range: 58.6 ± 13.0). From each patient, we aseptically collected two lashes from the upper right eyelid and two lashes from the upper left eyelid. The collected material was used in preparations examined using light microscopy (magnified 100 times). Infection of the examined subjects was confirmed by the detection of adult and larval forms of D. folliculorum.Demodex folliculorum is found in 21.8% of healthy controls and 18.9% of haematologic patients ( Fig. 1; Table 1).In the control group, D. folliculorum occurred in 22.3% of women and in 20.8% of men. In patients with haematologic disorders, D. folliculorum occurred in 17.5% of women and in 25% of men.
In this study, we deal with the problem of scheduling charging periods of electrical vehicles (EVs) to satisfy the users’ demands for energy consumption as well as to optimally utilize the available power. We assume three-phase EV charging stations, each equipped with two charging ports (links) that can serve up to two EVs in the scheduling period but not simultaneously. Considering such a specification, we propose an on–off scheduling scheme wherein control over an energy flow is achieved by flexibly switching the ports in each station on and off in a manner such as to satisfy the energy demand of each EV, flatten the high energy-consuming load on the whole farm, and to minimize the number of switching operations. To satisfy these needs, the on–off scheduling scheme is formulated in terms of a binary linear programming problem, which is then extended to a quadratic version to incorporate the smoothness constraints. Various algorithmic approaches are used for solving a binary quadratic programming problem, including the Frank–Wolfe algorithm and successive linear approximations. The numerical simulations demonstrate that the latter is scalable, efficient, and flexible in a charging procedure, and it shaves the load peak while maintaining smooth charging profiles.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.