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0 ± 23.7 and 6.0 ± 0.7 particles/kg, respectively. The distribution and size of the particles is affected by the geomorphological and sedimentary characteristics of these beaches, which are different from any other in Spain and in the Mediterranean in general. The beaches of Granada showed more microplastic contamination than Greek or Slovenian beaches, but less than other Spanish beaches. In this area of the Mediterranean, the presence of microplastics can be affected by the wind, sea currents or methodological aspects such as the pore size of the filters used. All of these factors were analysed when comparing the beaches of Granada with other Mediterranean beaches. This study shows that there is contamination by microplastics on the beaches of Granada, which have been little explored until now due to the difficult geological and granulometric characteristics, and gives support to other national studies.PV (PhotoVoltaic) systems gained popularity in being eco-friendly power supplies, reducing toxic gas emissions for energy production. Unfortunately it's been seen that efficiency reduction and output deficit are two common scenarios for PV systems when confronted with faulty events this fact creates the crucially important need of knowing types of different possible faults and be able to detect them according to their ways of striking, timing and density of their leftovers. What comes after is fixing the damages, by preventing them from happening repeatedly and stop them from reaching the surface. Since knowing the fault without correcting it is counterproductive, maintenance strategies can reduce competencies of the system, accelerate operation time, and compensate the system in a way that prevents lowering in efficiency and consequently financial losses. This paper aims to present different schemes used in fault intervention categorized by preventive, corrective, predictive and urgent case faults maintenance methods with corresponding effects on environment. A critical comparison between different strategies is presented as well as an economical assessment of the maintenance costs and energy production increase. Each type is individually clarified to reveal what area of PV faults types it can withstand. With a recommendation on maintenance choice, an informative reference for researchers in the field is established to optimally maintain a sustainable PV system.Transmission mechanics of infectious pathogen in various environments are of great complexity and has always been attracting many researchers' attention. As a cost-effective and powerful method, Computational Fluid Dynamics (CFD) plays an important role in numerically solving environmental fluid mechanics. Besides, with the development of computer science, an increasing number of researchers start to analyze pathogen transmission by using CFD methods. Inspired by the impact of COVID-19, this review summarizes research works of pathogen transmission based on CFD methods with different models and algorithms. Defining the pathogen as the particle or gaseous in CFD simulation is a common method and epidemic models are used in some investigations to rise the authenticity of calculation. Although it is not so difficult to describe the physical characteristics of pathogens, how to describe the biological characteristics of it is still a big challenge in the CFD simulation. A series of investigations which analyzed pathogen transmission in different environments (hospital, teaching building, etc) demonstrated the effect of airflow on pathogen transmission and emphasized the importance of reasonable ventilation. Finally, this review presented three advanced methods LBM method, Porous Media method, and Web-based forecasting method. L-NAME supplier Although CFD methods mentioned in this review may not alleviate the current pandemic situation, it helps researchers realize the transmission mechanisms of pathogens like viruses and bacteria and provides guidelines for reducing infection risk in epidemic or pandemic situations.
Benign childhood epilepsy with centrotemporal spikes is one of the most common childhood disorders. Despite the benignity usually attributed to this epileptic syndrome, several studies have demonstrated that these children have cognitive disabilities. Among these disturbances, language disorders have been the less studied in depth. We aimed to obtain accurate information about the language skills of children with this epileptic syndrome and to explore the correlation between demographic and clinical factors associated with epilepsy and the language skills.
We assessed 30 children with this epileptic syndrome, followed in three hospitals in Lisbon, and 60 controls, aged between 6 and 12 years, attending the same schools and matched by age, gender, and parents' socioprofessional level. All the included children did not present cognitive impairment (reasoning ability, verbal memory), sensory, or motor limitations. link2 The evaluation tests covered all language areas.
Overall, children with this epileptic syndrome had lower skills in the majority of the language areas, when compared with their peers. These children showed greater difficulties in semantics and syntax domains. The atypical evolution of the seizures and a longer duration of epilepsy were the clinical variables that most influence the language skills of our samples.
The early assessment of these capacities and the possible need for therapeutic intervention should be emphasized, in order to minimize the impact on their academic performance and quality of life.
The early assessment of these capacities and the possible need for therapeutic intervention should be emphasized, in order to minimize the impact on their academic performance and quality of life.
Obstructive sleep apnea (OSA) is associated with pulmonary fibrosis. Chronic intermittent hypoxia (CIH) is considered to be a surrogate of OSA. However, its exact role in pulmonary fibrosis remains uncertain. Therefore, we investigated the mechanism underlying CIH-induced pulmonary fibrosis and the role of the anti-fibrotic agent in bleomycin (BLE) induced lung injury.
Mice were divided into eight groups the normoxia (NOR), CIH, NOR plus BLE, CIH plus BLE, NOR plus pirfenidone (PF), CIH plus PF, NOR plus BLE and PF, and CIH plus BLE and PF groups. BLE was administered intratracheally on day 14 following CIH or NOR exposure. Subsequently, the mice were exposed to CIH or NOR for an additional 4 weeks. PF was administered orally on day 5 after BLE instillation once daily for 3 weeks.
In the BLE-treated groups, CIH-induced more collagen deposition in lung tissues than NOR, and significantly increased hydroxyproline and transforming growth factor-β expression. The CIH and BLE-treated groups showed increased lung inflammation compared to NOR or CIH groups. Following CIH with BLE treatment, nuclear factor-κB (NF-κB) protein expression was significantly increased, whereas nuclear factor-erythroid-related factor 2 (Nrf2) and heme oxygenase-1 protein levels were decreased. After PF treatment, NF-κB and Kelch-like ECH-associated protein 1 expression were suppressed, and Nrf2 expression was increased.
CIH accelerated lung fibrosis in BLE-induced lung injury in mice, potentially by regulating the NF-κB/Nrf2 signaling pathway. Our results implicate PF as a potential therapeutic agent for treating pulmonary fibrosis in individuals with OSA and idiopathic pulmonary fibrosis.
CIH accelerated lung fibrosis in BLE-induced lung injury in mice, potentially by regulating the NF-κB/Nrf2 signaling pathway. Our results implicate PF as a potential therapeutic agent for treating pulmonary fibrosis in individuals with OSA and idiopathic pulmonary fibrosis.Cryptococcus neoformans infections occur mostly in immunodeficient individuals, being the most common opportunistic fungal central nervous system (CNS) infection in HIV seropositive patients. Moreover, other conditions affecting host immunity, such as hematologic malignancies, organ transplantation and immunosuppressive drugs are implicated as risk factors. The authors present a case of a 48-year-old male with Hodgkin Lymphoma for 26 years and submitted to several lines of treatment, diagnosed with cryptococcal meningitis while on therapy with brentuximab. The patient presented with positive cerebral spinal fluid (CSF) cryptococcal antigen plus positive blood cultures. He was put under induction antifungal treatment with liposomal amphotericin B and flucytosine, as well as corticosteroid therapy with dexamethasone with headache improvement and a favorable clinical evolution. There are no reported cases of cryptococcal meningoencephalitis under CD30-directed monoclonal antibody. Furthermore, this case illustrates the risk of Cryptococcus neoformans infection in immunocompromising conditions other than HIV, underlining the need of considering this differential diagnosis when physicians face an opportunistic neuroinfection.Background Minimally invasive surgeries have increased dramatically during the last decades. Carbon dioxide (CO 2) is the gas used for insufflation during laparoscopies, creating space and visibility. link3 The CO 2 leaks into ambient air through ports where instruments are inserted. If the CO 2 reaches a certain concentration it affects personnel health. There are national occupational exposure limits (OEL) for CO 2, including a level limit value (LLV) of 5000 ppm. We are not aware of any previous studies addressing occupational exposure to CO 2 during laparoscopies. The aim of this study was to assess the compliance to national OELs for CO 2 during laparoscopies. Methods A gas detector was placed in the breathing zone of personnel in the operating theatre. The detector measured CO 2 concentrations every tenth minute during laparoscopies in three locations. Results During 27 laparoscopies, the measured CO 2 reached a maximum concentration of 1100 ppm, less than one fourth of the LLV. Median CO 2 concentration was 700 ppm. Conclusion Results show that the occupational exposure to CO 2 during laparoscopies is well below set OELs. Our findings support personnel safety associated with routine use of CO 2 during laparoscopies.Background Scopus is a leading bibliometric database. It contains a large part of the articles cited in peer-reviewed publications . The journals included in Scopus are periodically re-evaluated to ensure they meet indexing criteria and some journals might be discontinued for 'publication concerns'. Previously published articles may remain indexed and can be cited. Their metrics have yet to be studied. This study aimed to evaluate the main features and metrics of journals discontinued from Scopus for publication concerns, before and after their discontinuation, and to determine the extent of predatory journals among the discontinued journals. Methods We surveyed the list of discontinued journals from Scopus (July 2019). Data regarding metrics, citations and indexing were extracted from Scopus or other scientific databases, for the journals discontinued for publication concerns. Results A total of 317 journals were evaluated. Ninety-three percent of the journals (294/317) declared they published using an Open re the reliability of Scopus metrics for the purpose of scientific assessment of scholarly publishing at both journal- and author-level.
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