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1.
Psychogeriatrics ; 24(4): 887-896, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38802992

RESUMEN

BACKGROUND: Given the increasing number of people achieving exceptionally long lifespans, there is an urgent need for a better understanding of mental health in centenarians. This study aimed to understand the prevalence of mental health conditions-depressive symptoms, anxiety, sleep disturbances, disinhibition, and aberrant motor behaviour-among centenarians in Switzerland. METHODS: Data were collected from N = 169 participants via telephone interviews or paper questionnaires, either directly from centenarians or through proxy informants. Half the data were collected during a period when protective measures were imposed due to the COVID-19 pandemic, and half were collected after the measures were lifted. RESULTS: Mental health conditions were prevalent in our sample, particularly depressive symptoms (44.51%) and anxiety (42.17%). Significant positive associations were found between depressive symptoms and anxiety, and between disinhibition and aberrant motor behaviour. Furthermore, we identified statistical predictors for the occurrence of mental health conditions. Notably, institutionalised living increased the odds of depressive symptomatology, while those with higher education levels or an absence of cognitive impairment experienced more sleep disturbances. Finally, cognitive impairment was linked to increased disinhibition and aberrant motor behaviour. CONCLUSIONS: The high prevalence of mental health conditions underscores the need for proactive mental health care strategies in advanced old age. Moreover, it is vital to consider the interconnected nature of mental health conditions and to prioritise vulnerable groups, such as centenarians in institutional settings.


Asunto(s)
COVID-19 , Depresión , Salud Mental , Humanos , Suiza/epidemiología , Masculino , Femenino , Anciano de 80 o más Años , Salud Mental/estadística & datos numéricos , Depresión/epidemiología , COVID-19/epidemiología , COVID-19/psicología , Ansiedad/epidemiología , Trastornos del Sueño-Vigilia/epidemiología , Prevalencia , SARS-CoV-2 , Encuestas y Cuestionarios
2.
BMC Geriatr ; 24(1): 451, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38783188

RESUMEN

BACKGROUND: Despite most centenarians facing age-related declines in functional and cognitive capacities, the severity of these declines varies among individuals, as does the maintenance of good mental health (e.g., depressive symptoms) despite these declines. This study aims to examine this heterogeneity in centenarians from the Second Heidelberg Centenarian Study, which collected data from 112 centenarians living in Germany. In our study, we focus on a subsample of 73 centenarians who provided self-reports for our measures of interest (M age = 100.4, SD age = 0.55). METHODS: We examined correlations between functional capacity (i.e., PADL, IADL), cognitive capacity (i.e., MMSE), and depressive symptoms (i.e., GDS), and the existence of different profiles using hierarchical clustering. RESULTS: Higher functional capacity was related to higher cognitive capacity and to fewer depressive symptoms. Yet, higher cognitive capacity was associated with more depressive symptoms. Hierarchical clustering analysis elucidated this contradiction by identifying three profiles: low-capacity individuals (i.e., 24 individuals had low functional and cognitive capacities, with low depressive symptoms), high-capacity individuals (i.e., 33 individuals with high functional and cognitive capacities, with low depressive symptoms), and low-functional-high-cognitive-capacity individuals (i.e., 16 individuals showed low functional but high cognitive capacity, with high depressive symptoms). Our post-hoc analyses highlighted arthritis and pain as risk factors for functional dependence and depression. CONCLUSIONS: Our findings emphasize the importance of identifying centenarian subgroups with specific resource- and risk profiles to better address their needs, and of treating pain to improve functional capacity and mental health in centenarians.


Asunto(s)
Cognición , Depresión , Humanos , Masculino , Femenino , Anciano de 80 o más Años , Depresión/psicología , Depresión/epidemiología , Depresión/diagnóstico , Alemania/epidemiología , Cognición/fisiología , Actividades Cotidianas/psicología , Evaluación Geriátrica/métodos , Estado Funcional
3.
J Surg Case Rep ; 2023(8): rjad448, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37560599

RESUMEN

This article reports an older woman with a 2-year history of enlarging submental neck mass. Head and neck imaging displayed a group with a solid central component. Additionally, a fine-needle aspiration suggested neoplasia. Thyroglossal duct cyst cancer is sporadic, accounting for ˂1% of all thyroid malignancies. A Sistrunk procedure was followed by a total thyroidectomy and unilateral neck dissections. From histological and immunohistochemical examinations, the incidental finding of carcinoma indicates the diagnosis of thyroid tissue thyroglossal duct cyst carcinoma, as it is the most common site for malignancy in ectopic thyroid tissue. The patient had an excellent recovery without additional treatments after surgery.

4.
Geriatr Psychol Neuropsychiatr Vieil ; 21(1): 51-62, 2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-37115679

RESUMEN

INTRODUCTION: Early geriatric rehabilitation programs are potential means to prevent acute hospitalisation-associated functional decline. METHODS: The objectives were to measure the impact of an interdisciplinary rehabilitation program on patients' administrative in hospital data and on functional trajectories. With a before-and-after design, we compared all patients admitted from January to August 2018 into the Acute Care for Elders (ACE) unit of an Academic hospital in Switzerland who received this type of program to those admitted during the same period in 2016 and 2017. We considered vulnerable patients aged 75 or older. Functional independency level was assessed at baseline, admission, and discharge according to Katz's basic activities daily living (BADL). RESULTS: In total, 378/1,073 patients (mean age 86.6 ± 6.4; 74.6% women; 84% admitted from the emergency department) were prospectively admitted into the ACE unit in 2018. With an adherence rate of 74.0% to functional therapies and compared to the prior years, the program reduced transfers to rehabilitation settings (28.5 vs. 24.3%, p=0.04) and increased direct discharges to home (46.8 vs. 42.4%, p=0.04). Rates of early-unplanned readmission were similar. Between admission to discharge, 89.9% of the patients engaged in the program remained functionally stable or enhanced. Whatever the BADL score at the admission, 46.5% improved their status for at least one BADL. Even though no clinical determinant was identified, patients who engaged ≥ 5 sessions of functional therapy per week were more likely to improve their functional level (OR = 3.05; 95% CI 1.76-5.27). CONCLUSION: This real-life study demonstrates arguments to implement early interdisciplinary rehabilitation program in ACE units in particular to prevent functional decline in vulnerable patients. These findings support consideration regarding the interest of switching from the traditional disease-centred approach in acute care for older patients to a modern one, that also put the emphasis on maintaining functional capacities.


Asunto(s)
Actividades Cotidianas , Hospitalización , Humanos , Anciano , Femenino , Anciano de 80 o más Años , Masculino , Suiza , Alta del Paciente , Readmisión del Paciente , Evaluación Geriátrica
5.
Front Nutr ; 10: 1114766, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37006943

RESUMEN

Background: The consumption of processed meat causes negative impacts on health; however, this burden for the population living in developing countries is less explored. This study aimed to describe the burden of chronic noncommunicable diseases (NCDs) attributed to a diet rich in processed meat between 1990 and 2019 in Brazil and its federative units and the financial burden on the Unified Health System (SUS) in 2019. Methods: Secondary data from the Global Burden of Disease (GBD) and SUS Information Systems were used in this ecological study. The metrics to assess the burden of NCDs attributable to processed meat consumption were disability-adjusted life years (DALYs) and deaths. The age-standardized rates were presented per 100,000 inhabitants with 95% uncertainty intervals (95% UI). The cost of hospitalizations and outpatient procedures covered by SUS for the treatment of NCDs attributable to processed meat consumption was estimated using the population-attributable fraction. Both burdens were estimated for both sex and stratified by sex, specific cause, and federative units. Results: The age-standardized DALY rates attributable to a diet rich in processed meat increased between 1990 (75.31/100,000 [95% UI: 34.92-139.65]) and 2019 (79.35/100,000 [95% UI: 42.84-126.25]); while mortality rates remained stable between 1990 (2.64/100,000 [95% UI: 1.17-5.21) and 2019 (2.36/100,000 [95% UI: 1.22-4.09]). The cost of hospitalization and outpatient procedures in Brazil for NCDs attributable to the consumption of processed meat was approximately US$ 9,4 million, of which US$ 6,1 million was spent on ischemic heart disease, US$ 3,1 million on colorectal cancer, and US$ 200 thousand on type 2 diabetes mellitus. Conclusion: The NCD burden did not decrease during the years evaluated, while the financial burden was high in 2019, with higher treatment costs for ischemic heart disease. These results can guide political, economic, and health education interventions to advance the fight against NCDs.

6.
J Surg Case Rep ; 2023(1): rjad019, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36741080

RESUMEN

Depending on the size and location, defects resulting from the surgical procedure due to basal cell carcinoma (BCC) may be challenging to reconstruct. A combination of more than one flap type might be necessary for moderate to large-sized defects, especially in face lesions. We present a patient with a large BCC in the nasal region, successfully closed using a combination of rotation and advancement flaps. The patient showed excellent functional and cosmetic outcomes.

7.
BMC Nurs ; 22(1): 53, 2023 Feb 25.
Artículo en Inglés | MEDLINE | ID: mdl-36841780

RESUMEN

BACKGROUND: The COVID-19 pandemic reinforced the need to invest in nursing practice environments and health institutions were led to implement several changes. In this sense, this study aimed to analyze the impact of the changes that occurred in nursing practice  environments between the first and fourth critical periods of the pandemic. METHODS: Quantitative, observational study, conducted in a University Hospital, with the participation of 713 registered nurses. Data were collected through a questionnaire with sociodemographic and professional characterization and the Scale for the Environments Evaluation of Professional Nursing Practice, applied at two different points in time: from 1 to 30 June 2020 and from 15 August to 15 September 2021. Data were processed using descriptive and inferential statistics. RESULTS: Overall, the pandemic had a positive impact on nursing practice environments. However, the Process component remained favourable to quality of care, while the Structure and Outcome components only moderately favourable. Nurses working in Medicine Department services showed lower scores in several dimensions of the Structure, Process and Outcome components. On the other hand, nurses working in areas caring for patients with COVID-19 showed higher scores in several dimensions of the Structure, Process and Outcome components. CONCLUSIONS: The pandemic had a positive impact on various dimensions of nursing practice environments, which denotes that regardless of the adversities and moments of crisis that may arise, investment in work environments will have positive repercussions. However, more investment is needed in Medicine Department services, which have historically been characterised by high workloads and structural conditions that make it difficult to promote positive and sustainable workplaces.

8.
Prim Care Diabetes ; 17(2): 175-179, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36646543

RESUMEN

AIMS: To characterize a cohort of T1D patients and to compare diabetes control between patients using different regimen of insulin therapy and glucose monitoring. METHODS: Were included all T1D patients followed at the Pediatric Endocrinology Unit, between April 1st and June 30th, 2021. Several clinical and demographic variables were analyzed. RESULTS: Our sample included 208 patients, 56.7 % males, mean age of 12.7 ± 4.6 years. The median HbA1c was 7.3 %. Most patients, 78.8% were treated with continuous subcutaneous insulin infusion (CSII) and 81.3 % used continuous glucose monitoring (CGM). CSII had a lower HbAc compared with multiple daily injections (MDI) users (7.1vs 8.1 %, p < 0.01). In the CSII group, those who used CGM had a lower HbAc (7.1 vs 7.5 %,p = 0.02). Analyzing the data of the ambulatory glucose report, the CSII users had a lower glucose management indicator, (7.2 % vs 7.6 %, p < 0.01), more time in range (58.0 % vs 52.4 %;p < 0.01) and less time above range > 250 mg/dL (12.4 % vs 20.5 %;p < 0.01) than MDI users. CONCLUSIONS: The median HbA1c was 7.3% very close to the recommended target. In Portugal, pediatric patients can access a CSII provided by the national health service and a CGM system due to an elevated reimbursement of their cost. This healthy policy allows us to achieve better goals without the risk of hypoglycemia.


Asunto(s)
Diabetes Mellitus Tipo 1 , Masculino , Humanos , Niño , Adolescente , Femenino , Diabetes Mellitus Tipo 1/diagnóstico , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Hipoglucemiantes/uso terapéutico , Automonitorización de la Glucosa Sanguínea , Portugal , Hemoglobina Glucada , Medicina Estatal , Glucemia/metabolismo , Insulina/uso terapéutico , Sistemas de Infusión de Insulina/efectos adversos
9.
Artículo en Inglés | MEDLINE | ID: mdl-36554789

RESUMEN

(1) Background: The repercussions of work environments were widely studied before the pandemic. However, there are still many difficulties to be discovered considering the impact generated by it. Thus, this study aimed to analyse the impact of COVID-19 on nursing practice environments and nurses' job satisfaction. (2) Methods: A correlational study was conducted in a hospital in northern Portugal, with the participation of 416 registered nurses. Data were collected in June 2021 through questionnaires. The study was approved by the Institutional Ethics Committee. (3) Results: COVID-19 had a favourable impact on the structure component of the practice environments; the process component decreased compared to the pre-pandemic period; the outcome component remained moderately favourable to the quality of care. Nurses were not very satisfied or not at all satisfied with their valuation and remuneration; moderately satisfied with the leadership and staffing; and satisfied with the organisation and resources, co-workers and valuation by patients and families. In more favourable environments, nurses' job satisfactions were higher. (4) Conclusions: Identifying the dimensions with the best and worst scores allowed the institution's managers to concentrate efforts on where improvements were needed, thus preparing professional contexts for the recovery of care activities.


Asunto(s)
COVID-19 , Enfermeras y Enfermeros , Personal de Enfermería en Hospital , Humanos , Satisfacción en el Trabajo , COVID-19/epidemiología , Encuestas y Cuestionarios , Portugal/epidemiología
10.
J Surg Case Rep ; 2022(12): rjac598, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36570551

RESUMEN

Carotid body tumors (CBTs) are a neoplasm that affects the carotid glomus. This study aims to improve the management of CBTs in Ecuador. This single-center, retrospective observational study was conducted at the Instituto de la Tiroides y Enfermedades de Cabeza y Cuello (ITECC). We included adults with CBTs, between January 2019 and August 2022. A total of 15 patients with CBTs were included. All patients were females living at high altitudes (>2500 m). In the Shamblin classification, 12 tumors were type II, and 3 were type III. Complete tumor resection was performed in all patients without pre-operative embolization. All patients had benign CBTs with a mean follow-up of 17, 73 months. In a time when the medical cost is high mainly in low-income countries such as Ecuador, further investigation should be undertaken in the form of randomized prospective trials to answer who would benefit from the pre-TAE procedure.

11.
Artículo en Inglés | MEDLINE | ID: mdl-35805436

RESUMEN

(1) Background: Initiatives aimed at assessing and intervening in health literacy have the potential to promote adherence to self-care behaviours, which is the main focus of intervention by rehabilitation nurses. Thus, the objectives were to analyse the level of health literacy of working-age citizens and identify priority areas for intervention by rehabilitation nurses. (2) Methods: Quantitative, correlational and cross-sectional study, conducted in a multinational company, with the participation of 161 workers. The data were collected between 14 April and 7 May 2021, using a self-completion questionnaire composed of sociodemographic and clinical characterization and the European Health Literacy Survey, following a favourable opinion from the Ethics Committee and the company's management. (3) Results: Overall, low to moderate literacy scores were predominant. Age and education were significantly associated with literacy scores. Workers with higher levels of health literacy had no diagnosed illnesses, took less medication, reported less sadness, fewer memory changes and less muscle and joint pain. (4) Conclusions: The fact that higher levels of health literacy trigger self-care behaviours and, consequently, fewer health problems reinforces the need for rehabilitation nurses to invest in this area.


Asunto(s)
Alfabetización en Salud , Enfermería en Rehabilitación , Estudios Transversales , Humanos , Autocuidado , Encuestas y Cuestionarios
12.
Artículo en Inglés | MEDLINE | ID: mdl-35627476

RESUMEN

Social isolation and loneliness have been recognized as problems older people face due to their adverse effects on health and mortality, but very few researchers have analyzed their co-occurrence, which might be particularly prevalent and critical among the very old. In this study, we investigated the prevalence of combinations of social isolation and loneliness among near-centenarians and centenarians. We used data collected from 94 individuals aged 95-107 from the Fordham Centenarian Study. We built a four-group typology and explored associations with individual characteristics in various domains (demographic, socioeconomics, social, health, care, and psychological) with multinomial logistic regression models. Considering their combinations, the most prevalent groups were "isolated and lonely" and "neither isolated nor lonely" (29.8% and 28.7%, respectively). The "lonely but not isolated" (20.2%) and "isolated but not lonely" (21.3%) groups were also notably large. The likelihood of belonging to each group varied according to various individual characteristics, such as education, health, and personality. Social isolation and loneliness are distinct phenomena among centenarians. The consideration of their varied combination can help better assess life conditions at very old ages. Taking into account the differences between groups can facilitate the design of tailored interventions to improve the lives of near-centenarians and centenarians.


Asunto(s)
Centenarios , Soledad , Anciano , Anciano de 80 o más Años , Humanos , Soledad/psicología , Personalidad , Aislamiento Social/psicología , Factores Socioeconómicos
13.
J Nurs Manag ; 30(5): 1105-1114, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35411605

RESUMEN

AIM: To analyse the impact of COVID-19 on professional nursing practice environments and patient safety culture. BACKGROUND: The relationship between work environments and patient safety has been internationally recognized. In 2020, the pandemic imposed enormous challenges, yet the impact on these variables remains unknown. METHOD: This is a quantitative observational study, conducted in a Portuguese hospital, with 403 registered nurses. A self-completion questionnaire was used. RESULTS: The impact on the Structure and Outcome components of nursing professional practice environments was positive. Although the Process component remained favourable to quality of care, a negative trend was confirmed in almost all dimensions. The results regarding safety culture showed weaknesses; 'teamwork within units' was the only dimension that maintained a positive culture. CONCLUSION: Positive responses regarding patient safety were significantly associated with the quality of the nursing professional practice environment. The need to invest in all dimensions of safety culture emerges to promote positive professional environments. IMPLICATIONS FOR NURSING MANAGEMENT: Improving professional nursing practice environments can be achieved through managers' investment in the participation and involvement of nurses in the policies and functioning of institutions, as well as promoting an open, fair and participatory safety culture that encourages reporting events and provides adequate support for professionals.


Asunto(s)
COVID-19 , Enfermeras y Enfermeros , Personal de Enfermería en Hospital , COVID-19/epidemiología , Humanos , Seguridad del Paciente , Administración de la Seguridad , Encuestas y Cuestionarios , Lugar de Trabajo
14.
J Pediatr Endocrinol Metab ; 35(5): 631-638, 2022 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-35357097

RESUMEN

BACKGROUND: Adrenal insufficiency (AI) is a life-threatening condition caused by an impaired secretion of the adrenal glucocorticoid and mineralocorticoid hormones. It comprises a heterogeneous group of primary, secondary and acquired disorders. Presentation differs according to the child's age, but it usually presents with nonspecific and insidious symptoms and signs. The main purpose of this study was to describe and compare patients with primary or secondary AI. METHODS: Retrospective analysis of all patients with adrenal insufficiency followed at the Pediatric Endocrinology Unit in a tertiary care Portuguese hospital over the last 30 years. Data on family history, age at the first manifestation and at etiological diagnosis, and clinical presentation (symptoms, signs and laboratory evaluation) was gathered for all patients. RESULTS: Twenty-eight patients with AI were included; 67.9% were male, with a median (25th-75th percentile, P25-P75) age of 1 (0.5-36) month at the first presentation. The principal diagnostic categories were panhypopituitarism (42.9%) and congenital adrenal hyperplasia (25%). The most frequent manifestations (75%) were vomiting and weight loss. They were followed for a median (P25-P75) period of 3.5 (0.6-15.5) years. In respect to neurodevelopmental delay and learning difficulties, they were more common in the secondary AI group. CONCLUSIONS: Despite medical advances, the diagnosis and management of AI remains a challenge, particularly in the pediatric population, and clinicians must have a high index of suspicion. An early identification of AI can prevent a potential lethal outcome, which may result from severe cardiovascular and hemodynamic instability.


Asunto(s)
Insuficiencia Suprarrenal , Hipopituitarismo , Insuficiencia Suprarrenal/diagnóstico , Insuficiencia Suprarrenal/epidemiología , Insuficiencia Suprarrenal/etiología , Niño , Femenino , Hospitales , Humanos , Hipopituitarismo/complicaciones , Masculino , Portugal/epidemiología , Estudios Retrospectivos
15.
Geriatrics (Basel) ; 7(1)2022 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-35200524

RESUMEN

BACKGROUND: Due to the increasing care needs of older adults, family caregivers are more and more solicited. This can have a negative impact on their quality of life related to a lack of preparedness for caregiving and feelings of burden. OBJECTIVES: To measure perceptions of burden and preparedness for caregiving among the family caregivers of hospitalised older adults, and to explore their possible associations. METHODS: A cross-sectional study conducted in two university hospital geriatrics wards in Switzerland. Principal family caregivers of hospitalised older adults were invited to complete sociodemographic, the Zarit Burden Interview, and the Preparedness for Caregiving Scale questionnaires. Descriptive and correlational data analyses were performed. RESULTS: Of the 38 responding caregivers, 80% provided informal care to their spouse or parent; 45% reported a lack of preparedness to provide care and 61% reported substantial levels of burden. There was no statistically significant correlation between preparedness and burden (ρ ≤ -0.30, p = 0.07). CONCLUSIONS: A significant proportion of caregivers reported burden and a lack of preparedness. Healthcare professionals should provide adequate support to help informal caregivers to fulfil their roles.

16.
Healthcare (Basel) ; 10(2)2022 Feb 09.
Artículo en Inglés | MEDLINE | ID: mdl-35206940

RESUMEN

The COVID-19 pandemic has imposed challenges to health systems and institutions, which had to quickly create conditions to meet the growing health needs of the population. Thus, this study aimed to assess the impact of COVID-19 on professional nursing practice environments and to identify the variables that affected their quality. Quantitative, observational study, conducted in 16 Portuguese hospitals, with 1575 nurses. Data were collected using a questionnaire and participants responded to two different moments in time: the pre-pandemic period and after the fourth critical period of COVID-19. The pandemic had a positive impact on the Structure and Outcome components, and a negative trend in the Process component. The variables associated with the qualification of the components and their dimensions were predominantly: work context, the exercise of functions in areas of assistance to COVID-19 patients, length of professional experience and length of experience in the service. The investment in professional practice environments impacted the improvement of organizational factors, supporting the development of nurses' work towards the quality of care. However, it is necessary to invest in nurses' participation, involvement and professional qualifications, which are aspects strongly dependent on the institutions' management strategies.

17.
Porto Biomed J ; 7(1): e170, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35146177

RESUMEN

BACKGROUND: Although COVID-19 attracted attention to the environments of professional nursing practice, triggering a series of responses to address some of the most pressing problems, it is important to identify the size and scope of other weaknesses that have emerged. METHODS: In an observational and cross-sectional study, using the Scale for the Evaluation of the Environment of Professional Nursing Practice, 752 nurses from a Portuguese university hospital, provided socio-demographic and professional data about the components structure, process and outcome of their professional nursing environment. Data collection took place from June 1-30, 2020, immediately after the first critical period of the COVID-19 pandemic in Portugal. RESULTS: In the analysed environment of professional nursing practice, Process factors were favourable to the quality of care, while the Structure and Outcome factors had a moderately favourable effect. Structure factors related to work contexts (P < .001) and nursing functions in patient care areas with COVID-19 (P = .001). Process factors related significantly to work contexts (P < .001). A significant association was found between Outcome factors and work contexts (P < .001) and nursing functions in patient care areas with COVID-19 (P = .005). CONCLUSION: The environments of professional nursing practice in the hospital under study are moderately favourable to the quality of care. However, the need to invest in nurses' participation, involvement and professional qualification is clear. Maintenance of a sustainable nursing workforce requires attention to be given to ensuring that practice environments are conducive to the quality of care and geared to promoting professional involvement and job satisfaction among nurses.

19.
Environ Sci Pollut Res Int ; 28(12): 15173-15184, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33230793

RESUMEN

One of the aims of Goal 11 of the UN's 2030 Agenda for Sustainable Development is to make human settlements sustainable. Some effort should therefore focus on developing maintenance strategies for buildings. Polished granite cladding tiles are very popular for use as flooring material in private and public buildings. These tiles are often treated by mechanical cleaning with detergents and scrubbers, and anionic detergents without chelating agents are usually used to prevent damaging the material. In this study, the anionic detergent Teepol® was applied to granite tiles in order to determine the effect of the treatment on the surface properties of this stone, i.e. appearance, colour, gloss, roughness and hydrophobicity. The results obtained were explained by scanning electron microscopy observations, which enabled characterisation of the microtexture of the surfaces, chemical contamination and any damage to the different granite-forming minerals. The results were compared with those obtained for tiles cleaned by the same mechanical procedure but with tap water in place of detergent and for tiles treated by immersion in water without any mechanical action. In summary, the properties evaluated were affected by the extraction of the typical oxyhydroxylated iron forms that fill cracks in the granite and by the formation of new cracks due to the mechanical action. Moreover, colour changes and the chemical contamination (C-rich deposits with Na, S, Cl, Ca and Mg) hindered the effectiveness of the cleaning procedure.


Asunto(s)
Detergentes , Dióxido de Silicio , Humanos , Propiedades de Superficie , Agua
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