In this paper, a review of radioactive wastes treatment using thermal plasma technology is presented as a treatment method for radioactive waste management. Virtually all waste streams can be treated ...by the thermal plasma technologies, resulting in a conditioned product, free from organics and liquids, definitely meeting the acceptance criteria for safe storage and disposal. The application of the thermal plasma system in the nuclear area is still one of the current research topics due to the theoretical and practical complexity of the treatment. This paper discusses the performance of the thermal plasma systems, addressing the advantages and limitations of the method.
As a major international public health emergency, COVID-19 has posed many challenges for healthcare professionals who have been heavily exposed to contamination. This article describes the ...development of a high-filtration capacity mask consisting of filter-element layers interspersed with super-activated carbon fiber fabric, non-woven polypropylene for dental–medical–hospital use and antiviral polyamide with nanostructured SiO2 thin film coating. The study found 98.18% particle filtration efficiency and determined 2.11 mmH2O/cm2 differential pressure, while fluid repellency complied with Brazilian standard NBR ABNT 15052:2004.
Objective
To compare the anterior crowding correction after sequential use of the first 5 aligners between two aligner exchange protocols (7 and 14 days) in mature adult patients.
Materials and ...Methods
Thirty‐six patients over 35 years who received orthodontic treatment with Invisalign® were randomly allocated to two different aligner replacement sequence protocols: Group 1: exchange every 7 days (n = 18); and Group 2: exchange every 14 days (n = 18). All patients were scanned with iTero Element 5D® (Align Technology) in two treatment times: at pre‐treatment (T1) and after using the first five aligners (T2). Little's Irregularity Index (LII) and arch widths were evaluated with OrthoCAD software. Intra and intergroup comparisons were performed with the dependent and independent t‐tests. The results were considered significant for P < .05.
Results
Thirty‐five patients completed the study. Both groups' maxillary and mandibular Irregularity Indexesi were significantly lower at T2. There was no significant difference in inter‐canine, inter‐premolar, and intermolar distances. G2 (14 days) presented a greater decrease in mandibular irregularity than G1 (7 days).
Conclusion
Both exchange protocols (7 and 14 days) effectively correct anterior crowding in the initial phase of orthodontic treatment with aligners in mature adult patients. However, the 14‐day exchange protocol provided a greater correction in mandibular anterior crowding in the evaluated period than the 7‐day exchange protocol.
Interessada nas representações da identidade portuguesa a partir dos filmes do cineasta João Canijo, a obra Uma dramaturgia da violência oferece uma revisão da literatura no campo dos estudos ...identitários nacionais, com destaque para conceitos dos filósofos Eduardo Lourenço e José Gil. A partir disso e de análises narrativas e estéticas de oito longas-metragens de ficção e um documentário de Canijo, é teorizada uma “dramaturgia da violência” como reflexo de um Portugal contemporâneo.
•Peru has the highest number of monkeypox (Mpox) cases per million people in Latin America.•Mpox outbreak is currently concentrated on men who have sex with men.•Two-thirds of Peruvian patients with ...Mpox virus infection are living with HIV.•Skin lesions in the anogenital area without preceding systemic symptoms are common.•The majority of Mpox hospitalized cases had HIV and were on antiretroviral treatment.
Monkeypox (Mpox) recent outbreak has changed in terms of predominant transmission route and typical presentation. Describing current epidemiological and clinical characteristics is crucial to identifying cases and halting transmission.
An observational study was conducted at a Peruvian tertiary-level hospital and included all individuals with Mpox virus infection between July 01 and September 03, 2022.
Among 205 confirmed cases, 99% (202/205) were men, 94% (192/205) were men who have sex with men or bisexual, and 66% (136/205) were living with HIV. Regarding sexual behavior, 87% (179/205) had a sexual encounter 21 days before consultation, although only 8% (17/205) identified sexual contact with a Mpox confirmed case; 65% (133/205) had sexual intercourse with casual partners, 55% (112/205) reported a last sexual partner unknown, and 21.5% (44/205) continued having sexual intercourse with symptoms. Systemic symptoms were fever (162/205, 79%), malaise (123/205, 60%), headache (119/205, 58%), fatigue (105/205, 52%), and lymphadenopathy (111/205, 54%). The distribution of skin lesions was generalized (166/205, 81%), located in the anogenital area (160/205, 78%), polymorphic (174/205, 85%), and it was the first symptom identified in 46% (94/205) of cases. Overall, 10% (21/205) required hospitalization, of whom 85.7% (18/205) have HIV infection. Complications included bacterial superinfection (n = 18), proctitis (n = 6), balanitis (n = 4), and necrosis of skin lesions (n = 3).
In 2022, Mpox mainly affects men who have sex with men and People living with HIV/AIDS. It presents with skin lesions localized to the anogenital area and can lead to severe complications requiring hospitalization.
Alactic base excess (ABE) is a novel biomarker defined as the sum of lactate and standard base excess and estimates the renal capability of handling acid-base disturbances in sepsis. The objective of ...this study is to see if ABE is an independent predictor of mortality in septic patients with and without renal dysfunction.
We retrospectively studied 1178 patients with sepsis and septic shock. Patients were divided according to ABE values: 1) negative ABE (<−3 mmol/L); 2) neutral ABE (≥ − 3 and < 4 mmol/L); and 3) positive ABE (≥4 mmol/L). The effect of ABE on mortality was evaluated using Cox regression weight by inverse probability weighting (IPWT) analysis after propensity score assessment. Additionally, we performed a stratified analysis in patients with GFR > 60 mL/min/1.73 m2.
Negative ABE patients had higher mortality than patients with neutral ABE (adjusted HR 1.43; 95%CI 1.02–2.01). Also, in patients with GFR > 60 mL/min/1.73 m2 (n = 493), we observed higher mortality in patients with negative ABE (adjusted HR 2.43; 95%CI 1.07–5.53).
Negative ABE is an independent predictor of in-hospital mortality in septic patients with and without renal dysfunction.
O livro Welcome to fear city: crime film, crisis and the urban imagination apresenta uma análise histórica e estética de filmes policiais de locação produzidos na década de 1970 nos Estados Unidos da ...América. Ao discorrer sobre crises urbanas do período, refletidas em novas paisagens arquitetônicas, destaques da imprensa e movimentos sociopolíticos, Nathan Holmes argumenta que os filmes de crime, em sua diversidade, tocaram os espaços públicos de maneira contundente, inclusive contrastando a vivacidade e desordem dos centros urbanos com a gradativa homogeneização suburbana.
La presente investigación busca ampliar la comprensión de los vínculos entre las personas y los lugares de acuerdo con dos disciplinas distintas: la psicología ambiental y la geografía. A partir del ...caso particular del proceso de intervención territorial del Ecoparque Cerro de la Bandera, en la ciudad de Cali, se indaga en la relación entre las experiencias cotidianas y las nociones de lugar, espacio y territorio que construyen las personas, enfatizando en su apropiación subjetiva. A través de narrativas espaciales de vida, se distinguieron significaciones espaciales, territoriales y de lugar, y se analizaron con relación al sentido de apropiación del espacio. Los resultados más destacados muestran que las significaciones de lugar están directamente relacionadas con la apropiación más personal y subjetiva de los sujetos, mientras que las significaciones espaciales y territoriales están en el resorte de las interacciones sociales y funcionales que se dan allí.
Abstract
Balikian, P, Gomes de Araujo, G, Prado, ES, Ryan Geraldes, AA, Marinho de Lima, AH, and Mendes, EV. Anaerobic threshold in stand-up paddle: comparison between direct and alternative methods.
...J Strength Cond Res
36(7): 1896–1900, 2022—The purpose of this study was to test the validity of alternative protocols, mean velocity during 30 minutes of continuous effort (V30min) and critical velocity (CV), to estimate the anaerobic threshold in stand-up paddle (SUP). Eight athletes performed: 3 maximal efforts at 400-, 500-, and 800-m distances to determine CV values, using the distance-time relationship; 3 efforts at 85, 90, and 100% of maximal 500-m effort to determine the velocity related to 3.5 mmol·L
−1
of lactate, assumed as the
onset of blood lactate accumulation
(OBLA) and; a 30-minute continuous effort to determine the V30min. All evaluations were separated by 48 hours, with the athletes using their own boards and paddles in the water. No differences were observed between the OBLA (2.35 ± 0.13 m·s
−1
) and alternative methods (CV: 2.42 ± 0.20 m·s
−1
;
p
= 0.10 and V30min: 2.32 ± 0.13 m·s
−1
;
p
= 0.63). Although strong correlations were observed between the OBLA and alternative methods (CV:
r
= 0.84 and V30min:
r
= 0.94), the limits of agreement were higher in CV (±0.23 m·s
−1
) than V30min (±0.08 m·s
−1
). These results demonstrate that both the CV and V30min are valid to estimate the OBLA. In view of the specificity of SUP and the high levels of agreement, the use of the V30min is recommended to prescribe training intensities.
The use of dispersed catalysts in aqueous medium inside reactors in advanced oxidative processes is common among researchers. However, due to the difficult separation of these species after ...treatment, in many cases, the treatment process is unfeasible. In this context, the main target of the work was the evaluation of degradation of the phenolic solution by ozonation titanium dioxide (TiO
2
/P25), supported on zeolite spheres. The process was investigated through the response surface methodology (RSM) and optimized by the generalized reduced gradient (GRG) algorithm. The effects of various operating parameters including pH, power ozone (O
3
) generation, flow rate, and treatment time were investigated, using as a response to removal of chemical oxygen demand (COD). It was made in optimum conditions the ratio of biochemical oxygen demand (BOD)/chemical oxygen demand to check the increasing biodegradability, aiming ozonation as preliminary treatment, with the possibility of subsequent biological treatments. There was an increase in this ratio from 0.17 to 0.50 in 48 min, which would facilitate the use of the subsequent biological process. The proposed model showed good fit to the experimental data with
R
2
and
R
2
adj
correlation coefficients of 0.9964 and 0.9932, respectively.
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