The Universidad Autónoma de Zacatecas (UAZ) (Autonomous University of Zacatecas) is a Mexican public research university based in the city of Zacatecas, Zacatecas, but with several campuses across the state. It is considered both the most prestigious and most important college in the state.[citation needed] According to Mexican business and economics newspaper El Economista the UAZ is among the 20 best Mexican universities.
Tuberculosis (TB) remains one of the most significant infectious diseases globally, particularly affecting low- and middle-income countries, including Mexico. Its persistence is driven, among other factors, by the emergence of drug-resistant strains and the complex genetic diversity of Mycobacterium tuberculosis (M.tb). Accurate identification and molecular characterization of circulating strains are essential for understanding transmission dynamics and guiding public health interventions. In this study, we employed Deeplex Myc-TB to analyze 143 samples from Mexico of Mycobacterium tuberculosis complex (MTBC), a targeted deep sequencing assay, to perform comprehensive detection of drug resistance-associated mutations and detailed spoligotype profiling in Mtb isolates. Herein, we report the distribution of known and novel spoligofamilies, including previously uncharacterized patterns not found in existing in Deeplex Myc-TB databases. Additionally, we identified several mutations linked to resistance against first- and second-line drugs. This providing insight into the local epidemiology of drug-resistant (DR-TB).
MnS thin films were synthesized on glass, ITO, and FTO substrates using the SILAR method to evaluate their crystal quality and growth behavior. The deposition process involves the formation of an electrical double layer on the substrate surface, followed by a chemical reaction that facilitates MnS adhesion. Electrical properties were assessed using a four-point probe, while structural, morphological, and compositional analyses were conducted via XRD, SEM, and Raman spectroscopy. The findings demonstrate that substrate type significantly influences the structural, optical, and electrical properties of MnS films, with transparent conductive oxides yielding more stable and higher-quality films.
The increase in non-communicable chronic diseases (NCDs) associated with sedentary lifestyles constitutes a priority challenge for health systems in Mexico. Professional training in Physical Culture may serve as a key agent in promoting active and healthy lifestyles. However, the public health relevance of university curricula remains a subject of debate. To analyze the orientation of undergraduate curricula and study programs in Physical Culture in Mexico in order to determine their focus on health care. A documentary, descriptive, and comparative study was conducted using information available on the institutional websites of public universities and teacher-training colleges. Curricular categorization matrices were constructed to identify the percentage of credits allocated to health-related areas, as well as the relationship between these orientations and state-level epidemiological indicators. A marked heterogeneity in the curricular presence of a health-oriented approach was observed, highlighting a clear dichotomy between universities and teacher-training colleges. Preventive and biomedical orientations are not standardized at the national level, which limits an adequate professional response to public health problems. Guidelines are proposed to strengthen the incorporation of a health-oriented approach in professional training in Physical Culture.
Multi-frequency Proca stars are excited equilibrium configurations of a selfgravitating massive vector field that coexist with conventional stationary states in the solution space of the s=1 Schrödinger-Poisson system. In this paper, we present a systematic study of the continuum spectrum of spherical multi-frequency Proca stars and show that they interpolate between the discrete set of stationary states of constant polarization. Furthermore, we also analyze their stability and demonstrate that a subset of these multi-frequency configurations are linearly stable against general perturbations. We briefly discuss the potential implications of multi-frequency states for proving the particle spin in ultralight dark matter models.
We introduce function tables, an entrywise representation of the coefficient functions that appear in the worker responses of a secure distributed matrix multiplication (SDMM) scheme. We work under the outer-product partition, with K row blocks, L column blocks, and privacy against any T colluding workers, in the general model of linear encoding and linear decoding. In this representation, privacy is a rank condition on the data and mask coefficients, and decodability is linear independence of the desired entries modulo the nuisance space. Degree tables, cyclic-addition tables, and algebraic-geometry constructions are the special cases obtained by restricting the coefficient functions to a structured family; we impose no such restriction, so our converses bind every linear scheme. For T=1, we determine the exact optimum over every finite field 𝔽_q: it is KL+K+L when q≥3, and KL+K+L+1 over 𝔽_2, where the identity z^2=z forces one more worker. For arbitrary T, we prove N≥ KL+K+L and N≥max{K,L}+T with no MDS hypothesis on the masks; the first is stronger than the previously known bound KL+max{K,L}+2T-1 whenever min{K,L}≥2T. We then reduce field feasibility exactly to MDS existence: a scheme exists over 𝔽_q if and only if an [max{K,L}+T,T] linear MDS code does, and whenever it does, a Cartesian construction attains N=(K+T)(L+T) over that same field. For T=2 this makes q≥max{K,L}+1 necessary and sufficient, and we give a projective-line construction with N=KL+K+L+2 whenever KL+K+L divides q-1; for K,L≥2 it matches the best known worker count while requiring only an element of order KL+K+L.
