Indigenous microalgae strains characterization for a sustainable biodiesel production.

Microalgae have been widely recognized as a promising feedstock for sustainable biofuels production to tackle global warming and pollution issues related to fossil fuels uses. This study identified and analyzed indigenous microalgae strains for biodiesel production, specifically Chlorella vulgaris and Coelastrella thermophila var. globulina, from two distinct locations in Algeria. Molecular identification confirmed their identity, and the microalgae exhibited notable growth characteristics. Local Chlorella vulgaris and Coelastrella thermophila var. globulina showed good growth and high biomass yield, compared to Chlorella vulgaris CCAP211/11B reaching a weight of 1.48 g L-1 , 1.95 g L-1 , and 2.10 g L-1 , respectively. Lipids content of local Chlorella vulgaris, Coelastrella thermophila var. globulina, and Chlorella vulgaris CCAP211/11B, were found to be 31.39 ± 3.3%, 17 ± 2.26%, and 19 ± 0.64%, respectively. Chlorella vulgaris stood out as a candidate for biodiesel production due to its equilibrium between SFA and PUFA (43.24% and 45.27%). FAs are predominated by SFA and MUFA for Coelastrella thermophila var. globulina with value of 81.49% (SFA+MUFA). Predicted biodiesel qualities comply with ASTM6751 and EN14214 standards. Studied microalgae have therefore a promising potential for biodiesel production. However, optimising cultivation conditions is necessary to enhance biomass and lipids yield at a large scale.

Dental Implant Surface Decontamination and Surface Change of an Electrolytic Method versus Mechanical Approaches: A Pilot In Vitro Study.

Dental implants are the preferred fixed oral rehabilitation for replacing lost teeth. When peri-implant tissues become inflamed, the removal of plaque accumulating around the implant becomes imperative. Recently, several new strategies have been developed for this purpose, with electrolytic decontamination showing increased potential compared to traditional mechanical strategies. In this in vitro pilot study, we compare the efficacy of an electrolytic decontaminant (Galvosurge®) with an erythritol jet system (PerioFlow®) and two titanium brushes (R-Brush™ and i-Brush™) in removing Pseudomonas aeruginosa PAO1 biofilms from implants. Changes in the implant surface after each approach were also evaluated. Twenty titanium SLA implants were inoculated with P. aeruginosa and then randomly assigned to each treatment group. After treatment, decontamination efficacy was assessed by quantifying colony-forming units (log10 CFU/cm2) from each implant surface. Scanning electron microscopy was used to analyse changes in the implant surface. With the exception of R-Brush, all treatment strategies were similarly effective in removing P. aeruginosa from implants. Major surface changes were observed only in implants treated with titanium brushes. In conclusion, this pilot study suggests that electrolytic decontamination, erythritol-chlorhexidine particle jet system and i-Brush™ brushing have similar performance in removing P. aeruginosa biofilm from dental implants. Further studies are needed to evaluate the removal of more complex biofilms. Titanium brushes caused significant changes to the implant surface, the effects of which need to be evaluated.

Innovation in Teams: The Role of Psychological Capital and Team Learning.

The main purpose of the present research was to analyze the relationship between team psychological capital and innovation, considering team learning as a mediating variable. A field survey was carried out, which included 124 work teams belonging to organizations from different sectors of activity. Hypotheses were tested through PROCESS. Results supported a direct positive relationship between team psychological capital and team innovation and an indirect influence of team psychological capital on team innovation, through team learning. The findings of this study highlight the role of team learning as an intervening process between team psychological capital and team innovation. Accordingly, managers should seek to develop team psychological capital and learning behaviors among their teams to promote innovation.

Microalgae and Cyanobacteria Strains as Producers of Lipids with Antibacterial and Antibiofilm Activity.

Lipids are one of the primary metabolites of microalgae and cyanobacteria, which enrich their utility in the pharmaceutical, feed, cosmetic, and chemistry sectors. This work describes the isolation, structural elucidation, and the antibiotic and antibiofilm activities of diverse lipids produced by different microalgae and cyanobacteria strains from two European collections (ACOI and LEGE-CC). Three microalgae strains and one cyanobacteria strain were selected for their antibacterial and/or antibiofilm activity after the screening of about 600 strains carried out under the NoMorFilm European project. The total organic extracts were firstly fractionated using solid phase extraction methods, and the minimum inhibitory concentration and minimal biofilm inhibitory concentration against an array of human pathogens were determined. The isolation was carried out by bioassay-guided HPLC-DAD purification, and the structure of the isolated molecules responsible for the observed activities was determined by HPLC-HRESIMS and NMR methods. Sulfoquinovosyldiacylglycerol, monogalactosylmonoacylglycerol, sulfoquinovosylmonoacylglycerol, α-linolenic acid, hexadeca-4,7,10,13-tetraenoic acid (HDTA), palmitoleic acid, and lysophosphatidylcholine were found among the different active sub-fractions selected. In conclusion, cyanobacteria and microalgae produce a great variety of lipids with antibiotic and antibiofilm activity against the most important pathogens causing severe infections in humans. The use of these lipids in clinical treatments alone or in combination with antibiotics may provide an alternative to the current treatments.

Percepção de enfermeiros sobre seu papel gerencial, competências e desafios no cotidiano da Atenção Primária à Saúde / Nurses' perception of their managerial role and daily challenges in Primary Health Care

Objetivou-se compreender a percepção dos enfermeiros sobre o seu papel gerencial e identificar os desafios gerenciais vivenciados no cotidiano do enfermeiro da Atenção Primária à Saúde (APS). Estudo descritivo com abordagem qualitativa, realizado com 14 enfermeiros vinculados à Estratégia de Saúde da Família (ESF) de um município mineiro. A coleta de dados foi realizada nos meses de março a abril de 2015 por meio de entrevistas e posteriormente foi realizada análise de conteúdo. Foram construídas três categorias temáticas: Concepções sobre o gerenciamento de enfermagem na APS; O (des)preparo profissional e a função gerencial; Desafios inscritos no cotidiano gerencial da APS. Conclui-se que os enfermeiros têm noção das habilidades necessárias para o gerenciamento, entretanto, apontam como desafio a dificuldade de implementá-las em seu cotidiano de trabalho. Ademais, há um despreparo para exercer a função gerencial na APS atribuído à falta de educação permanente. Nota-se a necessidade de adoção de estratégias de capacitação profissional nessa área.

This study aimed to understand nurses' perception of their management role and to identify the management challenges experienced in the daily routine of primary health care (PHC) nurses . A descriptive study with a qualitative approach was conducted with 14 nurses linked to the Family Health Strategy (FHS) of a city of Minas Gerais. Data collection was carried out from March to April 2015 through interviews and later content analysis. Three thematic categories were built: Conceptions about the nursing management in PHC; Professional (lack-of)preparation and managerial function; Challenges registered in the daily management of PHC. It is concluded that nurses are aware of the required skills for management, however, they point out as a challenge the difficulty of implementing them in their daily work. Moreover, there is a lack of preparation to perform the management function in PHC attributed to the lack of continuing education. It is noted the need to adopt professional training strategies in this area.

A influência do tratamento intensivo com suporte de peso corporal na função motora de crianças com paralisia cerebral / Effects of intensive treatment with body weight support in children with cerebral paralysis

A aquisição da marcha sob o aspecto neuromotor da reabilitação vem a ser o principal desígnio do terapeuta durante a elaboração do plano de tratamento do paciente com paralisia cerebral, uma vez que a marcha representa não só um ganho da habilidade de locomover-se, mas também um conjunto de reações e padrões de movimento que auxiliam na função motora. Objetivo: Analisar os efeitos de um tratamento intensivo por meio do suporte de peso corporal em crianças com paralisia cerebral. Métodos: Participaram do estudo 10 crianças com paralisia cerebral, GMFCS nível IV ou V, idade entre 4 a 9 anos. Onde foram realizadas sessões diárias com suporte de peso corporal em esteira ergométrica com auxílio de terapeutas para executar o padrão de marcha mais próximo da normalidade, com pontos chaves em joelho e tornozelo com duração de 30 minutos de tratamento e intervalo de 24 horas, por um período de 10 dias. Para fins de avaliação pré e pós-intervenção, utilizando a escala de medição da função motora grossa GMFM, e da flexibilidade pelo Flexiteste. Resultados: Foi possível constatar um aumento relevante na função motora grossa dos sujeitos, onde o domínio Deitar e Rolar obteve maior pontuação, com um aumento de 10,77%. Sentar demonstrou aumento de 3,80%, Engatinhar e Ajoelhar 6,43% e o domínio Em Pé 3,45%. Relativo ao Flexiteste, a média entre os sujeitos relatou aumento expressivo de 4,2 pontos. Já em análise individual, percebe-se que 3 indivíduos obtiveram aumento de score de 6 pontos. Conclusão: Um protocolo intensivo de curta duração é capaz de trazer ganhos de flexibilidade e motores rápidos a crianças que possuem quadro de paralisia cerebral.

The acquisition of gait under the neuromotor aspect of rehabilitation is the main goal of the therapist during the elaboration of the treatment plan of the patient with cerebral palsy, since gait represents not only a gain in the ability to move, but also a set of reactions and movement patterns that aid in motor function. Objective: To analyze the effects of intensive treatment by means of body weight support in children with cerebral palsy. Method: Ten children with cerebral palsy, GMFCS level IV or V, age between 4 and 9 years participated in the study. Where daily sessions were performed with body weight support on a treadmill with the help of therapists to perform the walking pattern closest to normal, with key points in the knee and ankle lasting 30 minutes of treatment and 24 hour intervals for one period of 10 days. For purposes of pre and post-intervention evaluation, using the GMFM gross motor function measurement scale, and Flexitest flexibility. Results: It was possible to observe a significant increase in the gross motor function of the subjects, where the lie down and roll domain obtained a higher score, with an increase of 10.77%. To sit demonstrated a 3.80% increase, Crawling and Kneeling 6.43% and the Standing Foot 3.45%. Relative to Flexitest, the mean between subjects reported a significant increase of 4.2 points. In the individual analysis, it was observed that 3 subjects had a 6-point score increase. Conclusions: An intensive short-duration protocol is capable of bringing flexibility gains and fast motor to children with cerebral palsy.

Adesão ao tratamento medicamentoso da hipertensão arterial e fatores associados / Adherence to the drug treatment of blood hypertension and associated factors

Objetivo: identificar o grau de adesão ao tratamento medicamentoso de portadores de hipertensão arterial sistêmica. Método: estudo quantitativo, seccional. Participaram 60 usuários hipertensos atendidos em uma unidade básica de saúde. A coleta de dados foi realizada por meio da aplicação de um questionário baseado no Teste de Morisky-Green acrescido de questões sociodemográficas e clínicas. Resultados: dos 60 hipertensos, 10% apresentavam alta adesão ao tratamento medicamentoso; 46,7%, média adesão e 43,3% apresentaram baixa adesão. A maioria (95%) acreditava ter sido suficientemente informada sobre a HAS e seu tratamento. Os fatores que se mostraram associados à baixa adesão à terapia foram idade menor de 60 anos (p=0,038) e desconforto quando não toma medicação (p=0,023). Conclusão: a adesão ao tratamento medicamentoso para a hipertensão arterial é influenciada por múltiplos fatores, o que revela a necessidade de intervenções individualizadas e inovadoras que contemplem a realidade de cada sujeito, favoreçam a aderência à terapia e a consequente melhoria da qualidade de vida.(AU)

Miíases humanas: Atualidades para a prática clínica / Human myiasis: updates to the clinical practice

Miíase é uma infestação ectoparasitária, que tem as espécies Cochliomyia hominivorax, Dermatobia hominis e Cochliomyia macellaria como maiores destaques. Os principais fatores de risco são baixo nível socioeconômico, padrões inadequados de higiene, enfermidades psiquiátricas, diabetes mellitus, imunodepressão, etilismo, desnutrição e úlcera varicosa. Os autores abordam a importância epidemiológica da miíase humana em regiões endêmicas, discorrendo sobre manifestações clínicas, diagnóstico, tratamento e medidas profiláticas...

The myiasis consists of a parasitic infestation, the species having Cochliomyia hominivorax, Dermatobia hominis and Cochliomyia macellaria as most prominent. The main risk factors are low socioeconomic status, inadequate hygiene standards, psychiatric disease, diabetes mellitus, immunosuppression, alcoholism, malnutrition and varicose ulcer. There may be asymptomatic or systemic cases with serious complications. The purpose of this article is to address the epidemiological importance of human myiasis in endemic regions, discussing clinical manifestations, diagnosis, treatment and prophylactic measures...

Tricuríase: atualidades / Trichuriasis: an update

A tricuríase - parasitose causada pelo nematódeo Trichuris trichiura - é uma das principais infecções por helmintos que afeta o homem. A enfermidade produzida por T. trichiura é mais comum em indivíduos que habitam países em desenvolvimento ou que vivem em situações de pobreza. A entidade mórbida pode afetar o desenvolvimento físico, intelectual e cognitivo e aumentar a suscetibilidade a outras doenças, como malária e tuberculose. Com base nessas considerações, no presente artigo é apresentada uma revisão sobre os aspectos mais relevantes da tricuríase.