Strictly periodic points and periodic factors of cellular automata

We show that the set of strictly temporally periodic points of cellular automata with almost equicontinuous points is dense in the topological support of the measure. This extends a result of Lena, Margara and Dennunzio about the density of the set of strictly temporally periodic of cellular automata with equicontinuous points.Comment: arXiv admin note: substantial text overlap with arXiv:1904.12302, arXiv:1806.1021

Orientation Invariant ECG-Based Stethoscope Tracking for Heart Auscultation Training on Augmented Standardized Patients

Auscultation, the act of listening to the heart and lung sounds, can reveal substantial information about patients’ health and other cardiac-related problems; therefore, competent training can be a key for accurate and reliable diagnosis. Standardized patients (SPs), who are healthy individuals trained to portray real patients, have been extensively used for such training and other medical teaching techniques; however, the range of symptoms and conditions they can simulate remains limited since they are only patient actors. In this work, we describe a novel tracking method for placing virtual symptoms in correct auscultation areas based on recorded ECG signals with various stethoscope diaphragm orientations; this augmented reality simulation would extend the capabilities of SPs and allow medical trainees to hear abnormal heart and lung sounds in a normal SP. ECG signals recorded from two different SPs over a wide range of stethoscope diaphragm orientations were processed and analyzed to accurately distinguish four different heart auscultation areas, aortic, mitral, pulmonic and tricuspid, for any stethoscope’s orientation. After processing the signals and extracting relevant features, different classifiers were applied for assessment of the proposed method; 95.1% and 87.1% accuracy were obtained for SP1 and SP2, respectively. The proposed system provides an efficient, non-invasive, and cost efficient method for training medical practitioners on heart auscultation

The probiotic potential of lactobacilli isolated from Nile tilapia (Oreochromis niloticus)’s intestine

The potential probiotic acid lactic bacteria isolated from Nile tilapia (Oreochromis niloticus)fs intestine was tested for fish farming. In our collection, 10 Lactobacillus strains were targeted to confront a series of antibiotics in order to draw their resistance profile, and to test their degree of inhibitory to four pathogenic bacteria, Staphylococcus aureus, Escherichia coli, Streptococcus sp. and Pseudomonas sp. The power of acidification and tolerance was tested. Overall, our results show that strains BLT31 and BLT21 are fully susceptible and resistance to the tested antibiotics. Strains BLT3, BLT20, BLT21 and BLT23 have a good antagonistic effect against pathogenic bacteria that cause the highest damage in aquaculture. For acid lactic production, strains BLT3, BLT26, BLT27, BLT28, and BLT31 are considered fast since Ģ pH . 4U in less than three hours. As for the resistance to pH and bile salts, two strains BLT3 and BLT31 showed significant power which gives them acceptable probiotic potential.Key words: Probiotics, antibiotics, aquaculture, the Nile Tilapia, inhibitory activities, lactobacilli

Contribució al ecosistema dels drons: DroneLab

The Drone Engineering Ecosystem (DEE) is a project that aims to enhance and promote responsible drone technology usage, particularly in the educational domain. Through this collaborative project, various technological fields come together with a common purpose: to create an educational space for anyone interested in learning. This final degree project will be part of the DEE and will consist of creating an experience for schools, which will be composed of a structure adhering to the current regulations of unmanned aerial systems called 'DroneLab,' and the development of a website that will provide instructional guidelines for building a drone and the 'DroneLab' itself. The study and design of the drone laboratory will be detailed both in terms of the relevant legislation to ensure compliance with airspace regulations, and in terms of the structural considerations and calculations necessary to create a robust and resilient structure, taking into account the aerodynamic effects of wind and all related forces. In addition, an instruction manual will be provided to facilitate assembly of the structure. Lastly, we will implement a contributive website that will allow everyone who is part of the drone workshop to enjoy at all times access to information on the construction, programming and flight of the drone