IMPACT OF RESOURCE SCARCITY ON UNDOCUMENTED STUDENTS IN HIGHER EDUCATION

Background: Much progress has been made in understanding the impacts of identifying as an undocumented student in higher education, but knowledge of the scarcity of resources impacting undocumented students remains limited. Objective: This descriptive study examined the relationship between accessibility to social support and the psychological well-being of undocumented students in higher education. Methods: Quantitative data was gathered cross-sectionally from participants recruited using nonprobability sampling methods. The Kessler Psychological Distress Scale and Social Support Survey Scale were used to gather data on participants\u27 psychological distress and social support. A descriptive analysis was performed to yield summary statistics of participants’ demographics, psychological well-being, and social support. Results: All participants identified as Hispanic or Latino, most are attending a 4-year college, and most participants’ parents have less than a college education. The data suggests that 100% of participants reported struggles with mental health. Additionally, most reported less than favorable levels of social support throughout their academic career in higher education. Conclusion: The mental health of undocumented students may be more complex than anticipated, where mental well-being may be impacted by factors beyond the levels and types of social support received. Future research should consider exploring other factors that might impact the mental wellness of undocumented students. Furthermore, Colleges serving undocumented students should ensure that this vulnerable group receives adequate educational support in efforts to boost their mental health

Test-bed of a real time detection system for L/H and H/L transitions implemented with the ITMS platform

A basic requirement of the data acquisition systems used in long pulse fusion experiments is to detect events of interest in the acquired signals in real time. Developing such applications is usually a complex task, so it is necessary to develop a set of hardware and software tools that simplify their implementation. An example of these tools is the Intelligent Test and Measurement System (ITMS), which offers distributed data acquisition, distribution and real time processing capabilities with advanced, but easy to use, software tools that simplify application development and system setup. This paper presents the application of the ITMS platform to solve the problem of detecting L/H and H/L transitions in real time based on the use of efficient pattern recognition algorithms

Stability of Aspartic Acid at 77°K under Gamma Radiation in a Comet Cores Simulation: Implications for Chemical Evolution Studies

The synthesis of organic matter in a simulated primitive environment (terrestrial or extraterrestrial) has been widely studied. The stability of organic matter of biological significance, exposed to energy fields in primitive conditions, is equally important in the context of chemical evolution. We present a detailed analysis of the stability of prebiotic organic molecules under the effect of ionizing radiation at a low temperature, simulating a comet core. The laboratory simulation consists of icy phases of prototype organic matter and a mineral in a physical mixture. This chemical system was irradiated with gamma radiation at 77°K. The icy phases are methanol, formic acid, and aspartic acid in aqueous solution, in the presence of sodium montmorillonite as silicates surface.Our results show the stability of aspartic acid in this comet core simulation. We have been identified some radiolytic products of this mixture: ethylene glycol, glycolaldehyde, formamide, alanine, glycine and succinic acid. The products were identified by Gas Chromatography (GC) and High Performance Liquid Chromatography-Electrospray Ionization-Mass Spectrometry (HPLC-ESI-MS). The protection role of the clay in the radiolysis of aspartic acid was observed in this mixture. This result may be due to an energy transfer from the clay. At pH=4, aspartic acid is adsorbed onto the clay at the interlayer channel as is shown in the X-ray diffractograms (XRD)

Radiolysis of the Glycolaldehyde-Na+Montmor- illonite and Glycolaldehyde-Fe3+Montmorillonite Systems in Aqueous Suspension under Gamma Radiation Fields: Implications in Chemical Evolution

The stability and reactivity of organic molecules with biological and pre-biological significance in primitive conditions are of paramount importance in chemical evolution studies. Sugars are an essential component in biological systems for the different roles that they play in living beings. The objective of the present work is to study the gamma radiolysis of aqueous solutions of glycolaldehyde, the simplest sugar and aqueous suspensions of glycolaldehyde-Na+-montmorillonite and glycolaldehyde-Fe3+Montmorillonite. Our results indicate that the radiolysis of the aqueous solutions of glycolaldehyde (0.03M), oxygen free, mainly produce the linear dimer known as eritriol (122 g/mol) and a sugar-like compound with six carbon atoms (180 g/mol). The experiments with the clay suspensions show that clays can adsorb glycolaldehyde and protect it from gamma irradiation. Additionally, it was observed that depending on the cation present in the clay, the percentage and the product (monomer or cyclic dimer) adsorption was different. In the case of Fe3+ Montmorillonite, this clay catalyzed the decomposition of glycolaldehyde, forming small amounts non-identified products. The analysis of these systems was performed by ATR-FTIR, UV spectroscopy, liquid chromatography (UHPLC-UV), and HPLC coupled to a mass spectrometry

Marketing digital y satisfacción del cliente en la empresa transformadora de papel L&L S.R.L, San Juan de Lurigancho,2020

El presente estudio de investigación tiene como objetivo, determinar la relación significativa entre marketing digital y satisfacción del cliente en la empresa Transformadora de papel L&L S.R.L, San Juan de Lurigancho 2020. La metodología empleada para el desarrollo deltrabajo fue un enfoque hipotético deductivo con enfoque cuantitativo, con un nivel descriptivo correlacional, de tipo aplicada y con un diseño no experimental con corte transversal; con una población de 80 clientes y una muestra 66 clientes de acuerdo a la formula aplicada; toda la información recolectada se realizó a través de la técnica de encuesta, mediante el instrumento del cuestionario, el cual contenía 20 ítems. De los resultados obtenidos, se pudo determinar que existe una correlación positiva moderada de0.529, obteniendo una significancia de 0.000, por lo que esto determina que se rechaza lahipótesis nula y se acepta la hipótesis alterna. Concluyendo que la significancia de la prueba de Rho de Spearman salió menor a 0.05, se afirma que existe relación entre marketing digital y satisfacción del cliente

Procesos de oxidación avanzada en la remoción de la demanda química de oxígeno en aguas residuales industriales

La implementación de los procesos de oxidación avanzada (POA) a los tratamientos convencionales muestran ser realmente beneficiosos ya que estos ayudan a tratar contaminantes altamente tóxicos. Sin embargo, estos podrían presentar problemas de efectividad de remoción por diversos factores; por lo cual, se propuso evaluar a los diferentes procesos de oxidación avanzada utilizados en la reducción de DQO en aguas residuales industriales. La investigación corresponde a una revisión sistemática de artículos recuperados de las plataformas digitales Scopus, Dialnet, Scielo, Redalyc, ScienceDirect y Semantic Scholar; de las cuales se seleccionaron 30 artículos. Los resultados muestran que, los procesos no fotoquímicos de oxidación avanzada abarcaron un 89% en los tratamientos a efluentes industriales; las técnicas a base de ozono reducen entre 92-98%, las de oxidación electroquímica entre 92-96%, las fotocatalíticas entre 90-95% y las de Fenton entre 80-94%; y posicionan a las técnicas de coagulación-floculación con un 46% como las más requeridas en los tratamientos de oxidación. Se concluye que, los procesos no fotoquímicos reducen más DQO en las aguas residuales de industria curtidora, cárnica, papelera, láctea y textil; las técnicas de oxidación avanzada más eficientes son la ozonización y oxidación electroquímica; y el principal método de separación complementaria son los procesos de coagulación-floculación

Study of L-Glutamic Acid in Solid State for its Possible Use as a Gamma Dosimeter at Different Temperatures (77, 195 and 295 K)

The experimental response of the dosimeter as a function of the irradiation temperature plays an important role, and this effect has consequences in the practical applications of dosimetry. In this work, L-glutamic acid (2-aminopentanedioic acid) is proposed to be a good response, easy to handle, and a cheap gamma dosimeter. For this purpose, polycrystalline samples were irradiated with gamma rays at 77, 195, and 295 K and doses in the kiloGray range (43–230 kGy). The potential use of the glutamic acid system as a chemical dosimeter is based on the formation of stable free radicals when the amino acid is exposed to ionizing radiation. The observed species in these experiments were attributed to deamination and decarboxylation reactions that were studied using electron spin resonance (ESR). The results indicate that the analysis generates a linear response as the irradiation dose increases in a reliable range for industrial and research purposes at three different temperatures

Study of Solid-State Radiolysis of Behenic, Fumaric, and Sebacic Acids for their Possible Use as Gamma Dosimeters Measured Via ATR-FT-IR Spectroscopy

The intensive use of ionizing radiation has promoted the constant investigation of adequate dosimetric systems in the measurement of doses applied in irradiated products. The objective of this work is to propose gamma dosimetric systems, using carboxylic acids in a solid state and measuring the change via infrared spectroscopy (carboxylic acid/ ATR-FT-IR1). We worked with three systems: (1) behenic acid/ATR-FT-IR, (2) sebacic acid/ATR-FT-IR, and (3) fumaric acid/ATR-FT-IR. The change in absorbance corresponding to the stretching vibration frequency of the carbonyl group to the absorbed dose (in the range of kGy) was measured. The results showed that the acid/ATR-FT-IR systems have a linear response with respect to the absorbed dose, for behenic acid/ATR-FT-IR from 0 to 122 kGy, for ATR-FT-IR sebacic acid from 0 to 61 kGy, and for fumaric acid/ATR-FT-IR from 0 to 34 kGy. The results indicated that the linear response of the absorbance dose in the three systems allows us to continue studying other variables to be able to propose them as chemical dosimeters