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1.
Rep Prog Phys ; 86(9)2023 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-37489874

RESUMO

Strong-laser-field physics is a research direction that relies on the use of high-power lasers and has led to fascinating achievements ranging from relativistic particle acceleration to attosecond science. On the other hand, quantum optics has been built on the use of low photon number sources and has opened the way for groundbreaking discoveries in quantum technology, advancing investigations ranging from fundamental tests of quantum theory to quantum information processing. Despite the tremendous progress, until recently these directions have remained disconnected. This is because the majority of the interactions in the strong-field limit have been successfully described by semi-classical approximations treating the electromagnetic field classically, as there was no need to include the quantum properties of the field to explain the observations. The link between strong-laser-field physics, quantum optics, and quantum information science has been developed in the recent past. Studies based on fully quantized and conditioning approaches have shown that intense laser-matter interactions can be used for the generation of controllable entangled and non-classical light states. These achievements open the way for a vast number of investigations stemming from the symbiosis of strong-laser-field physics, quantum optics, and quantum information science. Here, after an introduction to the fundamentals of these research directions, we report on the recent progress in the fully quantized description of intense laser-matter interaction and the methods that have been developed for the generation of non-classical light states and entangled states. Also, we discuss the future directions of non-classical light engineering using strong laser fields, and the potential applications in ultrafast and quantum information science.

2.
Clean Technol Environ Policy ; : 1-14, 2023 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-37359169

RESUMO

Mine water can be a renewable and economical source of geothermal and hydraulic energy. Nine discharges from closed and flooded coal mines in the Laciana Valley (León, NW Spain) have been studied. Various technologies for the energy use of mine water, as well as the influence of factors such as temperature, the need for water treatment, investment, potential customers and expansion capacity, have been evaluated by means of a decision-making tool. It is concluded that the most advantageous option is an open-loop geothermal system using the waters of a mountain mine, the temperature of which exceeds 14 °C and whose distance to customers is less than 2 km. A technical-economic viability study for a district heating network designed to supply heating and hot water to six public buildings in the nearby town of Villablino is presented. The proposed use of mine water might help areas that have been greatly affected socioeconomically by the closure of the mines and has other advantages compared to conventional energy systems, such as the reduction of CO2 emissions. Graphical Abstract: It showing the advantages of using mine water as an energy source for district heating and a simplified layout. Supplementary Information: The online version contains supplementary material available at 10.1007/s10098-023-02526-y.

3.
J Frailty Aging ; 12(2): 97-102, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36946704

RESUMO

BACKGROUND: The Frailty Index (FI) is used to quantify and summarize vulnerability status in people. In Chile, no development and assessment of a FI have been explored. OBJECTIVE: To develop and evaluate a FI using representative data from Chilean adults aged 40 years and older stratified by sex. DESIGN: Cross-sectional study. SETTING: National representative data from the Chilean National Health Survey 2016-2017 (CNHS 2016-2017). PARTICIPANTS: 3,036 participants older than 40 years with complete data for all variables. MEASUREMENTS: A 49-item FI was developed and evaluated. This FI included deficits from comorbidities, functional limitations, mental health status, physical activity, anthropometry, medications, and falls. A score between 0 and 1 was calculated for each person. Descriptive statistics and linear regression models were employed to evaluate the FI's performance in the population. Comparative analyses were carried out to evaluate the FI score by age (1<60 and ≥ 60 years). RESULTS: The mean FI score was 0.15 (SD:0.09), with a 99% upper limit of 0.46. Scores were greater in women than men (0.17 [SD:0.09]) vs. 0.12 [0.08]); in people older than 80 years (0.22 [0.11]), and in people with ≤8 years of education (0.18 [0.10]) compared with those with >12 years (0.12 [0.08]). The average age-related increase in the FI was 2.3%. When a cut-off point ≥ 0.25 was applied, the prevalence of frail individuals was 11.8% (95% CI: 10.0 to 13.8) in the general population. The prevalence was higher in women 15.9% [95% CI: 13.3 to 18.9] than men 7.4% [95% CI: 5.3 to 10.1]. In a comparative analysis by age, higher FI mean scores and prevalence of frail were observed in people ≥ 60 than younger than 60. CONCLUSIONS: The mean FI score and frailty prevalence were higher in women than men, in people with fewer years of formal education, and incremented markedly with age. This FI can be used for early detection of frailty status focusing on women and middle-aged people as a strategy to delay or prevent frailty-related consequences.


Assuntos
Fragilidade , Avaliação Geriátrica , Inquéritos Epidemiológicos , Chile/epidemiologia , Fragilidade/diagnóstico , Fragilidade/epidemiologia , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Fatores Sociodemográficos , Estudos Transversais , Idoso Fragilizado/estatística & dados numéricos , Avaliação Geriátrica/métodos
4.
EFSA J ; 18(Suppl 1): e181107, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33294046

RESUMO

Bacterial antimicrobial resistance (AMR) is considered to be very alarming following an upward trend and thus posing a primary threat to public health. AMR has tremendous adverse effects on humans, farm animals, healthcare, the environment, agriculture and, thus, on national economies. Several tools have been proposed and adopted by numerous countries after comprehending the need for antimicrobial stewardship and for a rational use of antibiotics. These tools include diagnostics for infections or AMR detection, for measuring and monitoring antibiotic consumption (e.g. surveillance tools) and for guiding medical doctors and veterinarians in selecting suitable antibiotics. In addition, it has been known that the food chain represents a leading vector for the transmission of pathogens to humans via various routes (direct or indirect). Considerable efforts have been made and are still in progress both at international and national levels in order to control and mitigate the spread of pathogens and thus ensure food safety. During the last decades, a new concern has risen regarding the food chain playing a potential major role in the transmission of resistant bacteria as well as resistance genes from the animal kingdom to humans. Several recent studies highlight the role of food processing environments as potential AMR hotspots contributing to this spread phenomenon. Next-generation sequencing (NGS) technologies are becoming broadly used in the AMR field, since they allow the surveillance of resistant microorganisms, AMR determinants and mobile genetic elements. Moreover, NGS is capable of providing information on the mechanisms driving and spreading AMR throughout the food chain. In the current work programme, the aim was to acquire knowledge and skills to track AMR genes and mobile genetic elements in the food chain through NGS methodologies in order to implement a quantitative risk assessment and identify hotspots and routes of transmission of AMR along the food chain.

5.
Rehabilitación (Madr., Ed. impr.) ; 54(3): 191-199, jul.-sept. 2020.
Artigo em Espanhol | IBECS | ID: ibc-196735

RESUMO

Los programas de rehabilitación pulmonar están diseñados para promover la capacidad aeróbica y el mejoramiento de la calidad de vida de pacientes con deficiencias pulmonares crónicas, facilitando la participación y la integración en sus diferentes áreas de desempeño y en las actividades de la vida diaria mediante la prescripción y la ejecución de ejercicio físico, así como la educación relacionada con los factores de riesgo y vida saludable. Se considera un proceso multidisciplinar donde interactúan diferentes profesionales del área de la salud que durante el acompañamiento al paciente a través de su proceso de rehabilitación tienen como objetivo orientar cambios en su estilo de vida encaminados a mejorar los niveles de actividad física, los factores nutricionales, el ejercicio y el manejo de la diabetes, disminuir el peso corporal y lograr adherencia a los medicamentos y la cesación de tabaco, basados en las teorías del cambio comportamental. El objetivo principal de los programas de rehabilitación pulmonar es empoderar al usuario de su autocuidado y facilitar el manejo de la enfermedad pulmonar crónica


Pulmonary rehabilitation programmes aim to improve aerobic capacity and enhance quality of life in patients with chronic pulmonary disease, facilitating their participation and integration in different areas and activities of daily living, through the prescription and performance of physical exercise, as well as education on risk factors and healthy living. In multidisciplinary processes, various health professionals work together to support patients through the rehabilitation process, guiding lifestyle changes to improve their level of physical activity, nutritional factors, smoking cessation, diabetes management, medication adherence and weight loss, based on theories of behavioural change. The main objective of pulmonary rehabilitation programmes is to empower users in self-care and facilitate long-term management of chronic lung disease


Assuntos
Humanos , Doença Pulmonar Obstrutiva Crônica/reabilitação , Pneumopatias/reabilitação , Exercícios Respiratórios/métodos , Modalidades de Fisioterapia , Capacidade Pulmonar Total/fisiologia , Avaliação de Resultado de Intervenções Terapêuticas
6.
Rehabilitacion (Madr) ; 54(3): 191-199, 2020.
Artigo em Espanhol | MEDLINE | ID: mdl-32441270

RESUMO

Pulmonary rehabilitation programmes aim to improve aerobic capacity and enhance quality of life in patients with chronic pulmonary disease, facilitating their participation and integration in different areas and activities of daily living, through the prescription and performance of physical exercise, as well as education on risk factors and healthy living. In multidisciplinary processes, various health professionals work together to support patients through the rehabilitation process, guiding lifestyle changes to improve their level of physical activity, nutritional factors, smoking cessation, diabetes management, medication adherence and weight loss, based on theories of behavioural change. The main objective of pulmonary rehabilitation programmes is to empower users in self-care and facilitate long-term management of chronic lung disease.


Assuntos
Terapia por Exercício , Pneumopatias/reabilitação , Transtornos Respiratórios/reabilitação , Terapia Respiratória/métodos , Atividades Cotidianas , Assistência Ambulatorial , Terapia Combinada , Contraindicações de Procedimentos , Terapia por Estimulação Elétrica , Terapia por Exercício/métodos , Hospitalização , Humanos , Pacientes Internados , Estilo de Vida , Pacientes Ambulatoriais , Equipe de Assistência ao Paciente , Educação de Pacientes como Assunto , Autocuidado , Tai Chi Chuan
7.
FEMS Microbiol Lett ; 366(11)2019 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-31253991

RESUMO

Twitter is one of the most popular social media networks that, in recent years, has been increasingly used by researchers as a platform to share science and discuss ongoing work. Despite its popularity, Twitter is not commonly used as a medium to teach science. Here, we summarize the results of #EUROmicroMOOC: the first worldwide Microbiology Massive Open Online Course taught in English using Twitter. Content analytics indicated that more than 3 million users saw posts with the hashtag #EUROmicroMOOC, which resulted in over 42 million Twitter impressions worldwide. These analyses demonstrate that free Microbiology MOOCs shared on Twitter are valuable educational tools that reach broad audiences throughout the world. We also describe our experience teaching an entire Microbiology course using Twitter and provide recommendations when using social media to communicate science to a broad audience.


Assuntos
Microbiologia , Mídias Sociais , Comunicação , Disseminação de Informação/métodos , Rede Social
8.
Eur Arch Paediatr Dent ; 19(5): 347-352, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30178291

RESUMO

AIM: To investigate the presence of early childhood caries (ECC) in relation to plaque index, colony-forming units of Streptococcus mutans (S. mutans) and Lactobacillus spp., pH and salivary buffer capacity in day-care pre-schooler's aged 3-4 years old in Cali, Colombia, 2016. METHODS: Caries prevalence was determined in 124 children using the International Caries Detection and Assessment System and plaque index. In addition, a non-stimulated saliva sample was obtained to determine its pH, and buffer capacity. RESULTS: 55.65% of the children had ECC. The mean decayed-missing-filled teeth index was 2.94 ± 4.26. The absence or presence of ECC, compared to the median plaque index showed statistically significant differences (p < 0.05). There was not an association between ECC and S. mutans, Lactobacillus spp. colonies, pH and buffer capacity of saliva. CONCLUSIONS: This study reported association between ECC and the increasing amount of bacterial plaque. Other important biological risk factors were not associated with ECC. Regular tooth cleaning can be the most important public health measure to control ECC in day-care children.


Assuntos
Cárie Dentária/microbiologia , Lactobacillus/isolamento & purificação , Saliva/microbiologia , Streptococcus mutans/isolamento & purificação , Carga Bacteriana , Pré-Escolar , Colômbia , Índice CPO , Índice de Placa Dentária , Feminino , Humanos , Concentração de Íons de Hidrogênio , Masculino , Saliva/fisiologia
9.
EFSA J ; 16(Suppl 1): e160811, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32626061

RESUMO

Antimicrobial resistance (AMR) represents a major challenge for Public Health and the scientific community, and requires immediate and drastic solutions. Acquired resistance to certain antimicrobials is already widespread to such an extent that their efficacy in the treatment of certain life-threatening infections is already compromised. To date, the emergence and spread of AMR has been attributed to the use, misuse or indiscriminate use of antibiotics as therapeutic drugs in human, animal and plant health, or as growth promoters in veterinary husbandry. In addition, there is growing concern over the possibility of AMR transmission via the food chain. Food processing environments could act as potential hotspots for AMR acquisition and spread. Indeed, biocide use and exposure to food-related stresses and food processing technologies could presumably act as selection pressures for increased microbial resistance against clinically relevant antibiotics. Global AMR surveillance is critical for providing the necessary information to form global strategies and to monitor the effectiveness of public health interventions as well as to detect new trends and emerging threats. Surveillance of AMR is currently based on the isolation of indicator microorganisms and the phenotypic characterisation of the strains isolated. However, this approach provides very limited information on the mechanisms driving AMR or on the presence and spread of AMR genes. Whole genome sequencing (WGS) of bacterial pathogens is a powerful tool that can be used for epidemiological surveillance, outbreak detection and infection control. In addition, whole metagenome sequencing (WMS) allows for the culture-independent analysis of complex microbial communities, providing useful information on the occurrence of AMR genes. Both approaches can be used to provide the information necessary for the implementation of quantitative risk assessment of AMR transmission routes along the food chain.

10.
Mol Imaging Biol ; 20(1): 4-20, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28971346

RESUMO

The 6th annual meeting to address key issues in positron emission tomography (PET)/magnetic resonance imaging (MRI) was held again in Tübingen, Germany, from March 27 to 29, 2017. Over three days of invited plenary lectures, round table discussions and dialogue board deliberations, participants critically assessed the current state of PET/MRI, both clinically and as a research tool, and attempted to chart future directions. The meeting addressed the use of PET/MRI and workflows in oncology, neurosciences, infection, inflammation and chronic pain syndromes, as well as deeper discussions about how best to characterise the tumour microenvironment, optimise the complementary information available from PET and MRI, and how advanced data mining and bioinformatics, as well as information from liquid biomarkers (circulating tumour cells and nucleic acids) and pathology, can be integrated to give a more complete characterisation of disease phenotype. Some issues that have dominated previous meetings, such as the accuracy of MR-based attenuation correction (AC) of the PET scan, were finally put to rest as having been adequately addressed for the majority of clinical situations. Likewise, the ability to standardise PET systems for use in multicentre trials was confirmed, thus removing a perceived barrier to larger clinical imaging trials. The meeting openly questioned whether PET/MRI should, in all cases, be used as a whole-body imaging modality or whether in many circumstances it would best be employed to give an in-depth study of previously identified disease in a single organ or region. The meeting concluded that there is still much work to be done in the integration of data from different fields and in developing a common language for all stakeholders involved. In addition, the participants advocated joint training and education for individuals who engage in routine PET/MRI. It was agreed that PET/MRI can enhance our understanding of normal and disrupted biology, and we are in a position to describe the in vivo nature of disease processes, metabolism, evolution of cancer and the monitoring of response to pharmacological interventions and therapies. As such, PET/MRI is a key to advancing medicine and patient care.


Assuntos
Imageamento por Ressonância Magnética , Tomografia por Emissão de Pósitrons , Humanos , Biópsia Líquida , Radioterapia Guiada por Imagem , Microambiente Tumoral
11.
J Steroid Biochem Mol Biol ; 178: 193-202, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29262379

RESUMO

Glucocorticoids are widely used to treat acute and chronic diseases. Unfortunately, their therapeutic use is associated with severe side effects. Glucocorticoids are known to regulate several ion channels in cardiac myocytes, including voltage-dependent Ca2+ channels. Low-voltage-activated T-type Ca2+ channels are expressed in ventricular myocytes during the fetal and perinatal period, but are practically absent in the adult. However, these channels can be re-expressed in adult cardiomyocytes under some pathological conditions. We have investigated the glucocorticoid regulation of T-type Ca2+ channels in rat cardiomyocytes. Molecular studies revealed that dexamethasone induces the upregulation of CaV3.2 mRNA in neonatal rat ventricular myocytes, whereas CaV3.1 mRNA is only slightly affected. Patch-clamp recordings confirmed that T-type Ca2+ channel currents were upregulated in dexamethasone treated cardiomyocytes, and the addition of 50 µmol/L NiCl2 demonstrated that the CaV3.2 channel is responsible for this upregulation. The effect of dexamethasone on CaV3.2 is mediated by the activation and translocation to the cell nucleus of the glucocorticoid receptor (GR). We have isolated the upstream promoter of the Cacna1h gene and tested its activity in transfected ventricular myocytes. The initial in silico analysis of Cacna1h promoter revealed putative glucocorticoid response elements (GREs). Transcriptional activity assays combined with deletion analyses and chromatin immunoprecipitation assays demonstrated that GR binds to a region a GRE located in -1006/-985 bp of Cacna1h promoter. Importantly, upregulation of the CaV3.2 channel is also observed in vitro in adult rat ventricular myocytes, and in vivo in a rat model of excess of glucocorticoids.


Assuntos
Anti-Inflamatórios/farmacologia , Canais de Cálcio Tipo T/metabolismo , Cálcio/metabolismo , Dexametasona/farmacologia , Regulação da Expressão Gênica/efeitos dos fármacos , Miócitos Cardíacos/metabolismo , Animais , Canais de Cálcio Tipo T/genética , Células Cultivadas , Masculino , Miócitos Cardíacos/citologia , Miócitos Cardíacos/efeitos dos fármacos , Ratos , Ratos Wistar , Regulação para Cima
12.
Int J Tuberc Lung Dis ; 21(4): 412-419, 2017 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-28284256

RESUMO

SETTING: The tuberculin skin test (TST) and interferon-gamma release assays (IGRAs) are used as supportive evidence to diagnose active tuberculosis (TB). Novel IGRAs could improve diagnosis, but data are lacking in young children. DESIGN: Children (age 5 years) with suspected TB were prospectively screened at a tertiary hospital in Pune, India; the children underwent TST, and standard (early secretory antigenic target 6 and culture filtrate protein 10) and enhanced (five additional novel antigens) enzyme-linked immunospot (ELISpot) assays. RESULTS: Of 313 children (median age 30 months) enrolled, 92% had received bacille Calmette-Guérin vaccination, 53% were malnourished and 9% were coinfected with the human immunodeficiency virus (HIV); 48 (15%) had TB, 128 (41%) did not, and TB could not be ruled out in 137 (44%). The sensitivity of enhanced (45%) and standard (42%) ELISpot assays for diagnosing TB was better than that of TST (20%) (P  0.03); however, enhanced ELISpot was not more sensitive than the standard ELISpot assay (P = 0.50). The specificity of enhanced ELISpot, standard ELISpot and TST was respectively 82% (95%CI 74-89), 88% (95%CI 81-94) and 98% (95%CI 93-100). Rv3879c and Rv3615c, previously reported to be promising antigens, failed to improve the diagnostic performance of the ELISpot assay. CONCLUSION: The TST and the standard and novel ELISpot assays performed poorly in diagnosing active TB among young children in India.


Assuntos
ELISPOT/métodos , Testes de Liberação de Interferon-gama/métodos , Teste Tuberculínico/métodos , Tuberculose/diagnóstico , Antígenos de Bactérias/imunologia , Vacina BCG/administração & dosagem , Pré-Escolar , Coinfecção , Feminino , Infecções por HIV/epidemiologia , Humanos , Índia , Lactente , Masculino , Desnutrição/epidemiologia , Programas de Rastreamento/métodos , Estudos Prospectivos , Sensibilidade e Especificidade , Tuberculose/epidemiologia
13.
Sci Total Environ ; 576: 59-69, 2017 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-27780100

RESUMO

Abandoned and flooded mine networks provide underground reservoirs of mine water that can be used as a renewable geothermal energy source. A complete hydrochemical characterization of mine water is required to optimally design the geothermal installation, understand the hydraulic behavior of the water in the reservoir and prevent undesired effects such as pipe clogging via mineral precipitation. Water pumped from the Barredo-Figaredo mining reservoir (Asturias, NW Spain), which is currently exploited for geothermal use, has been studied and compared to water from a separate, nearby mountain mine and a river that receives mine water discharge and partially infiltrates into the mine workings. Although the hydrochemistry was altered during the flooding process, the deep mine waters are currently near neutral, net alkaline, high metal waters of Na-HCO3 type. Isotopic values suggest that mine waters are closely related to modern meteoric water, and likely correspond to rapid infiltration. Suspended and dissolved solids, and particularly iron content, of mine water results in some scaling and partial clogging of heat exchangers, but water temperature is stable (22°C) and increases with depth, so, considering the available flow (>100Ls-1), the Barredo-Figaredo mining reservoir represents a sustainable, long-term resource for geothermal use.

14.
J Environ Manage ; 184(Pt 2): 219-228, 2016 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-27720329

RESUMO

Abandoned and flooded mines constitute underground reservoirs which must be managed. When pumping is stopped in a closed mine, the process of flooding should be anticipated in order to avoid environmentally undesirable or unexpected mine water discharges at the surface, particularly in populated areas. The Candín-Fondón mining reservoir in Asturias (NW Spain) has an estimated void volume of 8 million m3 and some urban areas are susceptible to be flooded if the water is freely released from the lowest mine adit/pithead. A conceptual model of this reservoir was undertaken and the flooding process was numerically modelled in order to estimate the time that the flooding would take. Additionally, the maximum safe height for the filling of the reservoir is discussed.


Assuntos
Monitoramento Ambiental , Inundações , Mineração , Poluentes Químicos da Água/química , Poluição da Água/prevenção & controle , Humanos , Modelos Estatísticos , Espanha
15.
Eur J Clin Microbiol Infect Dis ; 35(9): 1487-93, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27272213

RESUMO

Schistosomiasis is related to the development of liver fibrosis and portal hypertension. Chronic co-infection with HBV and Schistosoma has been associated in endemic areas with a higher risk for a more severe liver disease. However, no studies have assessed the real importance of this co-infection in non-endemic regions. This is a retrospective observational study of Sub-Saharan immigrants attending between October 2004 and February 2014. Patients with chronic HBV infection with and without evidence of schistosomal infection were compared. Epidemiological, analytical, and microbiological data were analysed. Likelihood of liver fibrosis based on APRI and FIB-4 indexes was established. A total of 507 patients were included in the study, 170 (33.5 %) of them harbouring evidence of schistosome infection. No differences were found in transaminase, GGT, and ALP levels. In fibrosis tests, a higher proportion of patients with HVB and S. mansoni detection reached possible fibrosis scores (F > 2) when compared to patients without schistosomiasis: 17.4 vs 14.2 % and 4.3 % vs 4.2 % (using high sensitivity and high specificity cut-offs respectively), although differences were not statistically significant (p = 0.69, p = 0.96). For possible cirrhosis (F4) score, similar results were observed: 4.3 % of co-infected patients vs 2.1 % of mono-infected ones, p = 0.46. According to these datas, in non-endemic regions the degree of hepatic fibrosis in patients with chronic hepatitis B is not substantially modified by schistosome co-infection.


Assuntos
Coinfecção/diagnóstico , Hepatite B Crônica/complicações , Hepatite B Crônica/diagnóstico , Esquistossomose/complicações , Esquistossomose/diagnóstico , Adulto , África Subsaariana , Animais , Coinfecção/epidemiologia , Coinfecção/patologia , Emigrantes e Imigrantes , Feminino , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/patologia , Humanos , Cirrose Hepática/diagnóstico , Cirrose Hepática/epidemiologia , Cirrose Hepática/patologia , Masculino , Estudos Retrospectivos , Esquistossomose/epidemiologia , Esquistossomose/patologia , Espanha/epidemiologia , Adulto Jovem
16.
Clin. transl. oncol. (Print) ; 17(8): 612-619, ago. 2015. tab, ilus
Artigo em Inglês | IBECS | ID: ibc-138176

RESUMO

Purpose. The cure rate in Hodgkin lymphoma is high, but the response along with treatment is still unpredictable and highly variable among patients. Detecting those patients who do not respond to treatment at early stages could bring improvements in their treatment. This research tries to identify the main biological prognostic variables currently gathered at diagnosis and design a simple machine learning methodology to help physicians improve the treatment response assessment. Methods. We carried out a retrospective analysis of the response to treatment of a cohort of 263 Caucasians who were diagnosed with Hodgkin lymphoma in Asturias (Spain). For that purpose, we used a list of 35 clinical and biological variables that are currently measured at diagnosis before any treatment begins. To establish the list of most discriminatory prognostic variables for treatment response, we designed a machine learning approach based on two different feature selection methods (Fisher’s ratio and maximum percentile distance) and backwards recursive feature elimination using a nearest-neighbor classifier (k-NN). The weights of the k-NN classifier were optimized using different terms of the confusion matrix (true- and false-positive rates) to minimize risk in the decisions. Results and conclusions. We found that the optimum strategy to predict treatment response in Hodgkin lymphoma consists in solving two different binary classification problems, discriminating first if the patient is in progressive disease; if not, then discerning among complete and partial remission. Serum ferritin turned to be the most discriminatory variable in predicting treatment response, followed by alanine aminotransferase and alkaline phosphatase. The importance of these prognostic variables suggests a close relationship between inflammation, iron overload, liver damage and the extension of the disease (AU)


No disponible


Assuntos
Idoso , Humanos , Doença de Hodgkin/diagnóstico , Doença de Hodgkin/terapia , Ferritinas/uso terapêutico , Alanina Transaminase , Fosfatase Alcalina/uso terapêutico , Bleomicina/uso terapêutico , Vimblastina/uso terapêutico , Dacarbazina/uso terapêutico , Doxorrubicina/uso terapêutico , Estudos Retrospectivos , Estudos de Coortes , Prognóstico , Estimativa de Kaplan-Meier
17.
Meat Sci ; 108: 115-9, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26093224

RESUMO

The aim of this trial was to describe physicochemical, microbiological and organoleptic characteristics of dry fermented sausages produced from high hydrostatic pressure (HHP) pre-processed trimmings. During ripening of the meat products pH, weight, water activity (aw), and several microbiological parameters were measured at zero, eight, fifteen days and after 6weeks. Sensory characteristics were estimated at day 15 and after six weeks by a test panel by using several sensory tests. Enterobacteriaceae were not detected in sausages from HHP-processed trimmings. Fermentation was little affected, but weight and aw of the HHP-processed sausages decreased faster during ripening. HHP-treated sausages were consistently less favoured than non HHP-treated sausages, but the strategy may be an alternative approach if the process is optimized.


Assuntos
Fenômenos Químicos , Contaminação de Alimentos/análise , Microbiologia de Alimentos , Produtos da Carne/microbiologia , Adulto , Animais , Contagem de Colônia Microbiana , Comportamento do Consumidor , Enterobacteriaceae/isolamento & purificação , Escherichia coli/isolamento & purificação , Feminino , Fermentação , Manipulação de Alimentos , Inocuidade dos Alimentos , Humanos , Concentração de Íons de Hidrogênio , Pressão Hidrostática , Lactobacillaceae/isolamento & purificação , Masculino , Produtos da Carne/análise , Pessoa de Meia-Idade , Odorantes/análise , Suínos , Paladar
18.
Neurología (Barc., Ed. impr.) ; 30(5): 257-263, jun. 2015. tab
Artigo em Espanhol | IBECS | ID: ibc-139063

RESUMO

Introducción: La enfermedad de Parkinson impacta en la calidad de vida del sujeto que la presenta, pero también ocasiona una carga para el cuidador. Los factores relacionados con estos efectos incluyen aspectos motores y no motores de la enfermedad, así como características inherentes al cuidador. Métodos: Se evaluó a sujetos con enfermedad de Parkinson mediante los siguientes instrumentos: cuestionario de calidad de vida PDQ-8, escala unificada de la enfermedad de Parkinson de la Sociedad de Trastornos del Movimiento parte i a iv (MDS-UPDRS) y estadio de Hoehn y Yahr (HY). A los cuidadores primarios, se les aplicó el inventario de carga del cuidador de Zarit. Adicionalmente, se registraron las principales variables demográficas y clínicas. Resultados: Se incluyó a 250 sujetos con enfermedad de Parkinson, de los cuales 201 contaban con un cuidador primario. En el análisis multivariado los factores predictores de una peor calidad de vida del sujeto con enfermedad de Parkinson fueron la puntuación de la MDS-UPDRS I (β = 0,39, p < 0,001), puntuación de la MDS-UPDRS II (β = 0,21, p < 0,001) y puntuación de la MDS-UPDRS III (β = 0,07, p = 0,004). En lo que respecta a la carga en el cuidador, la puntuación de la MDS-UPDRS II (β = 0,54, p = 0,007) fue el que más influyó. Conclusiones: El presente estudio muestra una relación entre la calidad de vida del sujeto con enfermedad de Parkinson y la percepción de carga del cuidador. No obstante, los factores que determinan cada una de estas parecen ser distintos


Introduction: Parkinson's disease affects the quality of life of the individual with the disease in addition to creating a burden on the caregiver. Factors related to these effects include motor and non-motor aspects of the disease, as well as traits inherent to the caregiver. Methods: We evaluated subjects with Parkinson's disease using the following instruments: Quality of Life Questionnaire PDQ-8, Movement Disorders Society Unified Parkinson's disease Rating Scale part i to iv (MDS-UPDRS), and Hoehn and Yahr staging. The Zarit Burden Inventory was used to assess all primary caregivers. Major demographic and clinical variables were also recorded. Results: A total of 250 subjects with Parkinson's disease were included, of whom 201 had a primary caregiver. In the multivariate analysis, predictors of poor quality of life for a subject with Parkinson's disease were the MDS-UPDRS I score (β = .39, P < .001), MDS-UPDRS II score (β = .21, P < .001), and MDS-UPDRS III score (β = .07, P = .004). Regarding caregiver burden, the MDS-UPDRS II score (β = .54, P = .007) was the most influential factor. Conclusions: The present study shows a relationship between quality of life for the subject with Parkinson's disease and the caregiver's perceived burden. However, the factors that determine each situation appear to be distinct


Assuntos
Feminino , Humanos , Masculino , Doença de Parkinson/genética , Doença de Parkinson/enfermagem , Qualidade de Vida/psicologia , Cuidadores/educação , Cuidadores/psicologia , Atenção Primária à Saúde , Atenção Primária à Saúde/métodos , Síndrome de Tourette/metabolismo , Doença de Parkinson/complicações , Doença de Parkinson/metabolismo , Qualidade de Vida/legislação & jurisprudência , Cuidadores/classificação , Atenção Primária à Saúde/classificação , Atenção Primária à Saúde/normas , Síndrome de Tourette/complicações , Síndrome de Tourette/diagnóstico
19.
An. pediatr. (2003. Ed. impr.) ; 82(5): 308-315, mayo 2015. tab
Artigo em Espanhol | IBECS | ID: ibc-137009

RESUMO

INTRODUCCIÓN: Las quejas somáticas son frecuentes en la infancia. La investigación ha puesto de manifiesto su relación con la conciencia emocional y la inadaptación. El estudio tuvo 3 objetivos: 1)analizar la prevalencia de las quejas somáticas; 2) explorar las relaciones entre las variables evaluadas: quejas somáticas, diferenciar emociones, comunicar verbalmente emociones, no esconder emociones, conciencia corporal, atender emociones de otros, análisis de las propias emociones, inadaptación personal, inadaptación social, inadaptación familiar e inadaptación escolar, y 3) identificar variables predictoras de las quejas somáticas. PACIENTES Y MÉTODOS: Los participantes, seleccionados aleatoriamente, fueron 1.134 escolares de 10-12 años (media ± desviación típica=10,99±0,88), de ambos sexos. Se aplicaron el Listado de quejas somáticas, cuestionario de conciencia emocional y el Test autoevaluativo multifactorial de adaptación infantil. RESULTADOS: Los resultados indicaron que la prevalencia de quejas somáticas es del 90,2%, siendo el cansancio, el dolor de cabeza y el dolor de estómago los más frecuentes. Los mareos y el dolor de cabeza son superiores en niñas y las quejas disminuyen con la edad. Las quejas somáticas se relacionan negativamente con la conciencia emocional y positivamente con la inadaptación. Las variables que más contribuyen en la predicción de las quejas somáticas son la inadaptación personal (25,1%) y diferenciar emociones (2,5%). CONCLUSIONES: El trabajo permite concluir que la inadaptación personal es la mejor predictora de las quejas somáticas, así a mayor conciencia emocional y mejor adaptación, menor es el número de quejas somáticas presentadas, siendo la infancia una etapa evolutiva con importante malestar físico


INTRODUCTION: Somatic complaints are common in childhood. Research has shown their relationship with emotional awareness and maladjustment. The study had three objectives: 1) to analyze the prevalence of somatic complaints; 2) To explore the relationships between the variables evaluated: somatic complaints, differentiating emotions, verbal sharing of emotions, not hiding emotions, body awareness, attending to others' emotions, analysis of emotions, and personal, social, family, and school maladjustments; and 3) To identify predictors of somatic complaints. PATIENTS AND METHODS: The study included a total of 1,134 randomly selected schoolchildren of both sexes between 10-12 years old (M=10.99; SD=0.88). The Somatic Complaint List, Emotional Awareness Questionnaire, and Self-reported Multifactor Test of Childhood Adaptation were used to gather information. RESULTS: The results showed that the prevalence of somatic complaints was 90.2%, with fatigue, headache and stomachache being the most frequently. Dizziness and headache were more common in girls, and the frequency of complaints decreases with age. Somatic complaints are negatively related to emotional awareness, and positively related to maladjustment. The variables that contribute the most to the prediction of somatic complaints are personal maladjustment (25.1%) and differentiating emotions (2.5%). CONCLUSIONS: The study shows that personal maladjustment is the best predictor of somatic complaints; the more emotional awareness and better adapted the child, the fewer somatic complaints they lodge. Childhood is a stage with significant physical discomfort


Assuntos
Criança , Feminino , Humanos , Masculino , Transtornos de Adaptação/epidemiologia , Estresse Psicológico/epidemiologia , Sintomas Afetivos/epidemiologia , Emoções , Morbidade/tendências , Serviços de Saúde Escolar , Empatia , Comunicação , Transtornos Somatoformes/epidemiologia , Distribuição por Idade e Sexo
20.
Sci Total Environ ; 524-525: 93-103, 2015 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-25889548

RESUMO

Extensive spatial and temporal surveys, over 15 years, have been conducted in soil in urban parks and street dusts in one of the most polluted cities in western Europe, Avilés (NW Spain). The first survey was carried out in 1996, and since then monitoring has been undertaken every five years. Whilst the sampling site is a relatively small town, industrial activities (mainly the steel industry and Zn and Al metallurgy) and other less significant urban sources, such as traffic, strongly affect the load of heavy metals in the urban aerosol. Elemental tracers have been used to characterise the influence of these sources on the composition of soil and dust. Although PM10 has decreased over these years as a result of environmental measures undertaken in the city, some of the "industrial" elements still remain in concentrations of concern for example, up to 4.6% and 0.5% of Zn in dust and soil, respectively. Spatial trends in metals such as Zn and Cd clearly reflect sources from the processing industries. The concentrations of these elements across Europe have reduced over time, however the most recent results from Avilés revealed an upward trend in concentration for Zn, Cd, Hg and As. A risk assessment of the soil highlighted As as an element of concern since its cancer risk in adults was more than double the value above which regulatory agencies deem it to be unacceptable. If children were considered to be the receptors, then the risk nearly doubles from this element.


Assuntos
Monitoramento Ambiental , Poluentes do Solo/análise , Solo/química , Oligoelementos/análise , Poeira/análise , Indústrias , Metais Pesados/análise , Espanha
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