oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 12 )

2018 ( 55 )

2017 ( 46 )

2016 ( 57 )

Custom range...

Search Results: 1 - 10 of 22628 matches for " Daniela Patricia Ado;Williams "
All listed articles are free for downloading (OA Articles)
Page 1 /22628
Display every page Item
O comportamento agressivo de crian?as do sexo masculino na escola e sua rela??o com a violência doméstica
Maldonado, Daniela Patricia Ado;Williams, Lúcia Cavalcanti de Albuquerque;
Psicologia em Estudo , 2005, DOI: 10.1590/S1413-73722005000300003
Abstract: the present study aimed at studying the aggressive behaviors of male children in school and its relation to domestic violence. for such purpose, 28 male children and their mothers were evaluated, 14 of them showed aggression in schools (group a) and were compared to 14 children of the same sex and income who did not present aggression (group b). data were initially gathered by the teachers of three elementary schools of an inland city of s?o paulo state. afterwards, data were taken with the children's mothers in their respective homes. general results point to the occurrence of violence in both groups; however, the group of aggressive children had more incidents and more severity of violence. final considerations point to the need for further research in order to expand the knowledge of aggressive behavior and its relationship to domestic violence.
Physician Wages in States with Expanded APRN Scope of Practice
Patricia Pittman,Benjamin Williams
Nursing Research and Practice , 2012, DOI: 10.1155/2012/671974
Abstract: In recent years, states have looked to reforms in advanced practice nursing scope of practice (SOP) barriers as a potential means to increase access to primary care while reducing costs. Currently, 16 states and the District of Columbia permit advanced practice registered nurses to practice independently of physicians, allowing them to perform functions such as diagnosing and prescribing under their own authority within the primary care setting. Given the resistance of many physician associations to these reforms, we asked whether the economic interests of primary care physicians might be affected by reforms. Using the Bureau of Labor Statistics data on earnings, we compared primary care physicians' earnings in states that have instituted SOP reforms to those that maintain these practice barriers. We also compared surgeons' earnings as a control group. Lastly, we compared the rate of growth in the earnings of primary care physicians and surgeons over the last ten years. This preliminary analysis revealed no evidence of differences in earnings across the two groups of states. 1. Background In its 2010 report, “The future of nursing: leading change, advancing health,” the Institute of Medicine recommends the removal of scope of practice (SOP) barriers for advanced practice registered nurses (APRNs) such that they can “practice to the full extent of their education and training” (IOM, S-4). Currently, only 16 states and the District of Columbia (DC) allow APRNs to practice independently of physicians (For this study, we employ the standards of independent practice established by the Robert Wood Johnson Foundation Center to Champion Nursing in America [1], adapted from data collected for the annual Pearson Report [2]. By this standard, to be considered independent within a given state, APRNs must be permitted to diagnose and treat without physician supervision and must be permitted to prescribe medications either without physician supervision or with the signing of a one-time collaboration agreement with a physician or the state board of nursing (this may be for all prescribing or, in some states, only for prescribing of controlled substances, among which certain drugs may require case-specific consultations with a physician). In this way, our inclusion criteria for independent practice capture only states that grant APRNs complete or near-complete practice autonomy). In response to the IOM recommendation, the American Medical Association and the American Academy of Family Physicians, among others, have expressed their opposition, pointing out that
Recursos de la divulgación científica en la literatura para ni?os: Construcción verbal y visual del disparate
Vallejos,Patricia; Palmucci,Daniela;
Anclajes , 2011,
Abstract: scientific popularization for children has been enriched, in the last decade, with new and varied written and visual resources as effective means in the passage from common sense to scientific knowledge. among these resources, we analyse, in a book series for children in school age, the meaning potential of nonsense in its rhetorical performance in written and visual texts. the theoretical and methodological approach integrates a traditional view of rhetorical analysis with the systemic-functional perspective developed by michael halliday, as well as gunther kress and theo van leeuwen′s grammar of visual design.
Recursos de la divulgación científica en la literatura para ni os: Construcción verbal y visual del disparate Resources in scientific popularization for children: Verbal and visual construction of nonsense
Patricia Vallejos,Daniela Palmucci
Anclajes , 2011,
Abstract: la escritura de divulgación científica para ni os se ha enriquecido, en la última década, con nuevos y variados recursos de orden verbal y visual como medios eficaces del pasaje del conocimiento de sentido común al saber científico. Entre estos recursos, se analiza, en una colección destinada a ni os de escolaridad primaria, el potencial de significación del disparate y su operatoria retórica en texto e imagen. El marco teórico-metodológico integra una perspectiva tradicional de análisis retórico con la perspectiva sistémico-funcional desarrollada por Michael Halliday y la gramática del dise o visual de Gunther Kress y Theo van Leeuwen. scientific popularization for children has been enriched, in the last decade, with new and varied written and visual resources as effective means in the passage from common sense to scientific knowledge. Among these resources, we analyse, in a book series for children in school age, the meaning potential of nonsense in its rhetorical performance in written and visual texts. The theoretical and methodological approach integrates a traditional view of rhetorical analysis with the systemic-functional perspective developed by Michael Halliday, as well as Gunther Kress and Theo van Leeuwen′s grammar of visual design.
Evaluación de la contaminación orgánica e inorgánica en un suelo aluvial de la costa del Riachuelo, Buenos Aires, Argentina
Ratto,Silvia; Marceca,Ernesto; Moscatelli,Gustavo; Abbruzese,Daniela; Bardi,Hernán; Bossi,Mariano; Bres,Patricia; Cordón,Gabriela; Di Nano,María Pía; Murruni,Leonardo; Potarsky,Karina; Williams,Fernando;
Ecolog?-a austral , 2004,
Abstract: an evaluation of soils from a coastline sector of the riachuelo river, in buenos aires city, was carried out. superficial soil samples (0-25 cm depth) were taken on perpendicular transects from the river to inland, and analyzed to identify organic and inorganic contaminants. ranges of values for metals were: 1-5 mg/kg for cadmium, 4-23 mg/kg for arsenic, 25-497 mg/kg for copper, 8-43 mg/kg for nickel, 5-503 mg/kg for chromium, and 21-235 mg/kg for lead. cadmium, arsenic, copper and chromium levels were higher than those considered dangerous by the argentine hazardous wastes law 24051. toluene was the most important organic pollutant identified. concentration of metals and organic pollutant decreased sharply from the coastal river line into the land. soil characteristics also changed in a short distance: ph increased and total carbon decreased along the transect from the coast into the land. zinc and copper extracted by dtpa reached 12.5-47.2 mg/kg and 2.99-14.46 mg/kg, respectively, higher values than those usually found in this type of soils. metals and hydrocarbons come from the river. four meters far from the riverside, the concentration of metals diminishes to acceptable values. this variation shows the protective effect of the riverside. remediation to make public access possible without risk for the population is recommended.
Influence of Bisphosphonate Treatment on Medullary Macrophages and Osteoclasts: An Experimental Study
Natalia Daniela Escudero,Patricia Mónica Mandalunis
Bone Marrow Research , 2012, DOI: 10.1155/2012/526236
Abstract: Nitrogen-containing bisphosphonates are widely used for treating diverse bone pathologies. They are anticatabolic drugs that act on osteoclasts inhibiting bone resorption. It remains unknown whether the mechanism of action is by decreasing osteoclast number, impairing osteoclast function, or whether they continue to effectively inhibit bone resorption despite the increase in osteoclast number. There is increasing evidence that bisphosphonates also act on bone marrow cells like macrophages and monocytes. The present work sought to evaluate the dynamics of preosteoclast fusion and possible changes in medullary macrophage number in bisphosphonate-treated animals. Healthy female Wistar rats received olpadronate, alendronate, or vehicle during 5 weeks, and 5-bromo-2-deoxyuridine (BrdU) on day 7, 28, or 34 of the experiment. Histomorphometric studies were performed to study femurs and evaluate: number of nuclei per osteoclast (N.Nu/Oc); number of BrdU-positive nuclei (N.Nu BrdU+/Oc); percentage of BrdU-positive nuclei per osteoclast (%Nu.BrdU+/Oc); medullary macrophage number (mac/mm2) and correlation between N.Nu/Oc and mac/mm2. Results showed bisphosphonate-treated animals exhibited increased N.Nu/Oc, caused by an increase in preosteoclast fusion rate and evidenced by higher N.Nu BrdU+/Oc, and significantly decreased mac/mm2. Considering the common origin of osteoclasts and macrophages, the increased demand for precursors of the osteoclast lineage may occur at the expense of macrophage lineage precursors. 1. Introduction Bisphosphonates, especially nitrogen-containing bisphosphonates, are the first-choice drugs in the pharmacological treatment of osteoporosis and other less prevalent bone pathologies. It is well documented that these anti-catabolic drugs exert their action by partly inhibiting bone resorption caused by osteoclasts, either by decreasing the number of osteoclasts, altering recruitment, and/or stimulating apoptosis, [1–7], after which the apoptotic remains are phagocytosed by neighboring macrophages in bone marrow microenvironment. Nevertheless, there are reports indicating that the number of osteoclasts remains unchanged in spite of the significant increase in bone volume [8, 9]. Moreover, a number of studies including our research group have observed a significant increase in the number of osteoclasts [10–18]. More recently, patients treated with alendronate were found to exhibit large osteoclasts, with peculiar morphological features, termed “giant osteoclasts”, whose formation, lifespan, and potential risk to patients remain unknown [19].
Nivel socioeconómico y estado nutricional: Un estudio en escolares
Adjemian,Daniela; Bustos,Patricia; Amigo,Hugo;
Archivos Latinoamericanos de Nutrición , 2007,
Abstract: socioeconomic level and nutritional status: a study in schoolchildren. obesity increased in recent years at different rates among socioeconomic levels (sel). the purpose of this study was to analyze the association between sel and nutritional status in schoolchildren attending elementary schools in the six counties that show the highest prevalence of obesity in santiago, chile. within the counties schools were stratified according to obesity and children were randomly selected from each school. anthropometric assessment was performed in children whilst a socio-demographic survey and a 24 hour recall of food intake were applied to their mothers. we classified the sample according to sel in two categories (higher and a lower vulnerability). the prevalence of excess weight was 51.1% (24.7% overweight and 26,4% obese) without significant differences among sel. the most vulnerable group had lower values of body mass index, skinfold thickness, arm circumference and food intake however, these differences were not statistically significant. at the same time, these children were physically more active, showing higher use of community places to play [or 1.91; 95% ci 1.05-3.48] and walked larger distances from houses to schools or 6.6; ci 2.5-16.7). thus, albeit non significant association was detected between sel and anthropometric indicators nor with food intake, the highest vulnerable group showed a tendency to have lower values and more physical activity
Methicillin-Resistant Staphylococcus aureus SCCmec Type and Its Association with Clinical Presentation, Severity, and Length of Stay among Patients with Complicated Skin and Skin Structure Infections  [PDF]
Eric Gomez, Tom Chiang, Patricia A. Hogan, Daniela E. Myers, David B. Huang
Advances in Infectious Diseases (AID) , 2014, DOI: 10.4236/aid.2014.42017
Abstract:

Data from a prospective, randomized, open-label, active-controlled, multicenter, Phase 4 study comparing oral or intravenous linezolid with intravenous vancomycin for treatment of complicated skin and soft-tissue infections caused by methicillin resistant Staphylococcus aureus was used to determine the association between staphylococcal cassette chromosome mec (SCCmec) type and patient’s clinical presentation, infection severity, intravenous therapy duration and length of stay (LOS). Compared to SCCmec types I, II, and III, SCCmec type IV, PVL+ was associated with more frequent presentation of abscesses, lower severity scores, and shorter intravenous therapy duration and LOS in both treatment groups.

Surface Modification on Ti-30Ta Alloy for Biomedical Application  [PDF]
Patricia Capellato, Nicholas A. Riedel, John D. Williams, Joao P. B. Machado, Ketul C. Popat, Ana P. R. Alves Claro
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.59084
Abstract:

Titanium and titanium alloys are currently being used for clinical biomedical applications due to their high strength, corrosion resistance and elastic modulus. The Ti-30Ta alloy has gotten extensive application as the important biomedical materials. The substrate surface of the Ti-30Ta alloy was altered either by chemical or topographical surface modification. The biocompatibility of an implant is closely related to its surface properties. Thus surface modification is one of effective methods for improving the biocompatibility of implants. The development status of biomedical materials has been summarized firstly, the biomedical application. In this study Ti-30Ta alloy surface was investigate as-casting (Group 1) modified with alkaline and heat-treatments in NaOH with 1.5M at 60°C for 24 hrs (Group 2), alkaline and heat-treatments with SBF-coatings by immersion in NaOH and SBFX5 for 24hrs (Group 3), anodization process was performed in an electrolyte solution containing HF (48%) and H2SO4 (98%) with the addition of 5% dimethyl sulfoxide (DMSO) 35V for 40 min (Group 4) and ion beam etching with 1200 eV ions with a beam current of 200 mA for a 3 hrs etch (Group 5). SEM was used to investigate the topography, EDS the chemical composition, and surface energy was evaluate with water contact angle measurement. SEM results show different structure on the surface for each group. EDS spectra identified similarity on Group 1, 4 and 5. The results indicate for group 2 an amorphous sodium tantalate hydrogel layer on the substrate surface and for group 3 the apatite nucleation on substrate surface. The Group 4 shows unorganized and vertically nanotubes and Group 5 shows a little alteration in the topography on the substrate surfaces. Overall the contact angle shows Group 5 the most hydrophobic and Group 4 the most hydrophilic. The study indicates Group 3 and 4 with potential for biomedical application. The next step the authors need to spend more time to study group 3 and 4 in the biomedical sciences.

Raman Spectroscopy in Graphene-Based Systems: Prototypes for Nanoscience and Nanometrology
Ado Jorio
ISRN Nanotechnology , 2012, DOI: 10.5402/2012/234216
Abstract: Raman spectroscopy is a powerful tool to characterize the different types of sp2 carbon nanostructures, including two-dimensional graphene, one-dimensional nanotubes, and the effect of disorder in their structures. This work discusses why sp2 nanocarbons can be considered as prototype materials for the development of nanoscience and nanometrology. The sp2 nanocarbon structures are quickly introduced, followed by a discussion on how this field evolved in the past decades. In sequence, their rather rich Raman spectra composed of many peaks induced by single- and multiple-resonance effects are introduced. The properties of the main Raman peaks are then described, including their dependence on both materials structure and external factors, like temperature, pressure, doping, and environmental effects. Recent applications that are pushing the technique limits, such as multitechnique approach and in situ nanomanipulation, are highlighted, ending with some challenges for new developments in this field. 1. Introduction Raman spectroscopy is the inelastic scattering of light by matter, from molecules to crystals [1]. The effect is highly sensitive to the physical and chemical properties of the scattering material, as well as to any environmental effect that may change these properties. For this reason, the Raman spectroscopy is evolving into one of the most useful tools for the development of nanoscience and nanometrology. Raman spectrometers are widely available; the technique is relatively simple to perform, possible to carry out at room temperature and under ambient pressure, and requiring relatively simple or no specific sample preparation. Optical techniques (if not using high-energy photons) are nondestructive and noninvasive, as they use a massless and chargeless particle, the photon, as a probe, which is especially important for nanoscience due to the large surface-to-volume ratio in nanomaterials. Two-dimensional graphene, one-dimensional carbon nanotubes, and the related disordered materials, here all referred to as sp2 nanocarbons, are selected as the prototype materials to be discussed, first due to their importance to nanoscience and nanotechnology, second because their Raman spectra have been extremely useful in advancing our knowledge about these nanostructures. Nature shows that it is possible to manipulate matter and energy by assembling complex self-replicating carbon-based structures that are able to sustain life. On the other hand, carbon is the upstairs neighbor to silicon in the periodic table, with carbon having more flexible bonding and
Page 1 /22628
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.