Publications by authors named "Mayra Garcia"

The efficiency of a staged photocatalytic reactor prototype was evaluated on a semi-pilot scale with the removal of acetaminophen, for which anatase particles were synthesized by Sol-Gel and impregnated on rectangular plates of clay. X-ray diffraction and Energy Dispersive X-ray Fluorescence patterns show that the final composite is made up of AlO (14 %), SiO (41 %), CaO (3 %) TiO (34 %), and FeO (7 %). The impregnation method favors the dispersion of Anatase on the surface of the adsorbent.

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Background: Sudden Unexpected Infant Death (SUID) is the leading cause of death in infants 1 month to 1 year of age in the United States. Despite extensive efforts in research and public education, rates of sleep-related infant death have plateaued since the late-1990s, largely due to unsafe sleep practices and environments.

Local Problem: A multidisciplinary team assessed our institution's compliance with its own infant safe sleep policy.

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In its fresh state, the amniochorionic membrane contains various multipotential cells, growth factors, and extracellular matrix proteins that contribute to the healing of chronic vascular ulcers. To demonstrate its effectiveness, a fresh human placental membrane allograft was applied to a chronic venous ulcer in the lower limb of an 89-year-old female patient with a 12 x 10 cm ulcerated lesion of 40 years of evolution in the malleolar area of her left lower limb. Sixty days after the graft, the ulcer was healed in 100% of its surface and a light pink scar on the edges indicated possible pigmentation.

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Purpose: Evidence-based practice (EBP) within healthcare leads to improved patient outcomes, high-quality care, job satisfaction, reduced turnover, professional autonomy, and validates nursing practice. Although a plethora of research focuses on implementing EBP, there has been little attention on assessing organizational readiness for integration. The primary aims of this study were to explore nursing beliefs and attitudes about EBP and explore the culture and readiness among pediatric nurses for system-wide integration of EBP.

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Importance: National guidelines recommend against continuous pulse oximetry use for hospitalized children with bronchiolitis who are not receiving supplemental oxygen, yet guideline-discordant use remains high.

Objectives: To evaluate deimplementation outcomes of educational outreach and audit and feedback strategies aiming to reduce guideline-discordant continuous pulse oximetry use in children hospitalized with bronchiolitis who are not receiving supplemental oxygen.

Design, Setting, And Participants: A nonrandomized clinical single-group deimplementation trial was conducted in 14 non-intensive care units in 5 freestanding children's hospitals and 1 community hospital from December 1, 2019, through March 14, 2020, among 847 nurses and physicians caring for hospitalized children with bronchiolitis who were not receiving supplemental oxygen.

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Objective: Adverse childhood experiences (ACEs) have demonstrable negative effects on long-term physical and mental health. Racial and ethnic minority children disproportionally experience ACEs due to the impacts of structural inequality and discrimination, which could drive health disparities. Pediatric settings offer an opportune context to address ACEs and improve health equity, and to link families to the necessary resources to promote resilience.

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Purpose/objectives: Incivility contributes to employee dissatisfaction, turnover, patient errors, and a disrespectful culture. Turnover rates and employee exit interviews alerted hospital leaders to uncivil behaviors exhibited by staff. A clinical nurse specialist (CNS) team captured this as an opportunity to create a civility program to develop team cohesiveness and improve patient safety.

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Purpose: Pediatric patients are at high risk for peripheral intravenous infiltrations and extravasations (PIVIE) resulting in patient harm. Structured hourly rounding has demonstrated to improve quality outcomes. The purpose of this quality improvement project was to implement structured hourly rounding to decrease the median rate of moderate PIVIE rates from 3.

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Approximately 10% of fractures will not heal without intervention. Current treatments can be marginally effective, costly, and some have adverse effects. A safe and manufacturable mimic of anabolic bone is the primary goal of bone engineering, but achieving this is challenging.

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In 2015, Zika virus (ZIKV) appeared as an emerging pathogen, generating a global and urgent need for accurate diagnostic devices. During this public health crisis, several nucleic acid testing (NAT)-based Zika assays were submitted to the US Food and Drug Administration (FDA) for Emergency Use Authorization. The FDA's Center for Devices and Radiological Health, in collaboration with the FDA's Center for Biologics Evaluation and Research, responded to this Zika emergency by developing and producing a reference panel (RP) for Zika RNA (Zika FDA-RP) suitable for performance assessment of ZIKV NAT-based in vitro diagnostic devices.

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Mesenchymal stromal cells are an important component of the adult hematopoietic stem cell niche. They are a diverse population of cells that include a hierarchy of primitive, intermediate, and mature osteoprogenitors that support HSCs and supply the bone with matrix producing osteoblast. To understand the different roles played by individual types of progenitors, it is necessary to separate individual populations and analyze them in a controlled environment.

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Universal influenza vaccines are designed to protect against diverse strains of influenza virus. Preclinical testing of new vaccine candidates is usually done in naïve animals, despite intended use in the human population with its varied immune history including responses to previous vaccinations. As an approach more relevant to human use, we tested a candidate universal influenza vaccine in mice with a history of conventional vaccination.

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The objective of this qualitative review is to identify what motivates an adolescent to pursue bariatric surgery.

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Background: Antibody and T-cell immunity to conserved influenza virus antigens can protect animals against infection with diverse influenza strains. Although immunity against conserved antigens occurs in humans, whether such responses provide cross-protection in humans and could be harnessed as the basis for universal influenza vaccines is controversial. The 2009 pandemic provided an opportunity to investigate whether pre-existing cross-reactive immunity affected susceptibility to infection.

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Background & Objective: Multiple classes of natural products, such as antiandrogens or steroids have been used as antioxidants and anti-inflammatory treatments in neurodegenerative diseases. This paper aims to review current knowledge on these substances and their possible relationship with free radicals as an alternative therapy and prevention of common neurological disorders. An exhaustive review of the neurochemical mechanisms of these substances in the central nervous system of humans and animal models is yet to be undertaken in the literature, particularly regarding their importance and increasing use.

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Purpose: Clinical nurse specialists (CNSs) have a unique advanced practice role. This article describes a process useful in establishing a comprehensive orientation and onboarding program for a newly hired CNS.

Description: The project team used the National Association of Clinical Nurse Specialists core competencies as a guide to construct a process for effectively onboarding and orienting newly hired CNSs.

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In this study, we identified a CD105+CD90.1-CD133-CD55- (CD133-CD55-) population in the fetal skeletal element that can generate bone and bone marrow. Besides osteoblasts and chondrocytes, the CD133-CD55- common progenitors can give rise to marrow reticular stromal cells and perivascular mesenchymal progenitors suggesting they function as the fetal common skeletal progenitor.

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Microenvironment cues received by haematopoietic stem cells (HSC) are important in regulating the choice between self-renewal and differentiation. On the basis of the differential expression of cell-surface markers, here we identify a mesenchymal stromal progenitor hierarchy, where CD45Ter119CD31CD166CD146Sca1(Sca1) progenitors give rise to CD45Ter119CD31CD166CD146(CD146) intermediate and CD45Ter119CD31CD166CD146(CD166) mature osteo-progenitors. All three progenitors preserve HSC long-term multi-lineage reconstitution capability in vitro; however, their in vivo fates are different.

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Influenza has a major impact on the elderly due to increased susceptibility to infection with age and poor response to current vaccines. We have studied universal influenza vaccine candidates based on influenza A nucleoprotein and matrix 2 (A/NP+M2). Long-lasting protection against influenza virus strains of divergent subtypes is induced, especially with mucosal immunization.

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The hematopoietic stem cell (HSC) niche is composed of a complex set of stromal support cells that maintain HSCs and promote normal hematopoiesis. We now know that molecular changes within the hematopoietic niche contribute to leukemia development. Leukemia cells often reorganize the hematopoietic niche to promote and support their own survival and growth.

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Estaquier et al. provide commentary on our paper that elucidated the mechanism by which HIV-1 causes cell death in activated CD4 T lymphocytes. We showed that proviral DNA integration triggers DNA-PK dependent death signaling, leading to p53 phosphorylation and cell demise (Cooper A et al.

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The hepatitis B virus (HBV) Core protein encodes a late (L)-domain like motif (129PPAYRPPNAP(138)) that has been purported to serve as a docking site for recruitment of host factors such as Nedd4 that can mediate viral particle release from infected cells. However, mutation of this region of Core typically disrupts nucleocapsid formation in the cytoplasm, making it difficult to ascertain if the Core PPAY motif constitutes a functional L-domain that mediates HBV release in the context of replicating virus. Since many viral L-domains are functionally interchangeable between different virus families, and such swapping experiments have been used as a tool to identify other viral sequences with L-domain activity, we generated chimeric constructs between murine leukemia virus (MLV) Gag and HBV Core to determine if the potential HBV L-domain motif is sufficient to stimulate virus release.

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How natural variation in embryo size affects patterning of the Drosophila embryo dorsal-ventral (DV) axis is not known. Here we examined quantitatively the relationship between nuclear distribution of the Dorsal transcription factor, boundary positions for several target genes, and DV axis length. Data were obtained from embryos of a wild-type background as well as from mutant lines inbred to size select embryos of smaller or larger sizes.

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