Effects of high dietary inclusion of Arthrospira platensis, either extruded or supplemented with a super-dosing multi-enzyme mixture, on broiler growth performance and major meat quality parameters.

BACKGROUND: This investigation assessed the effects of high dietary inclusion of Spirulina (Arthrospira platensis) on broiler chicken growth performance, meat quality and nutritional attributes. For this, 120 male broiler chicks were housed in 40 battery brooders (three birds per brooder). Initially, for 14 days, a standard corn and soybean meal diet was administered. Subsequently, from days 14 to 35, chicks were assigned to one of the four dietary treatments (n = 10 per treatment): (1) control diet (CTR); (2) diet with 15% Spirulina (SP); (3) diet with 15% extruded Spirulina (SPE); and (4) diet with 15% Spirulina plus a super-dosing enzymes supplement (0.20% pancreatin extract and 0.01% lysozyme) (SPM). RESULTS: Throughout the experimental period, both SP and SPM diets resulted in decreased final body weight and body weight gain compared to control (p < 0.001), with the SPE diet showing comparable results to CTR. The SPE diet prompted an increase in average daily feed intake (p = 0.026). However, all microalga treatments increased the feed conversion ratio compared to CTR. Dietary inclusion of Spirulina notably increased intestinal content viscosity (p < 0.010), which was mitigated by the SPM diet. Spirulina supplementation led to lower pH levels in breast meat 24 h post-mortem and heightened the b* colour value in both breast and thigh meats (p < 0.010). Furthermore, Spirulina contributed to an increased accumulation of total carotenoids, n-3 polyunsaturated fatty acids (PUFA), and saturated fatty acids (SFA), while diminishing n-6 PUFA, thus altering the n-6/n-3 and PUFA/SFA ratios favourably (p < 0.001). However, it also reduced zinc concentration in breast meat (p < 0.001). CONCLUSIONS: The findings indicate that high Spirulina levels in broiler diets impair growth due to increased intestinal viscosity, and that extrusion pre-treatment mitigates this effect. Despite reducing digesta viscosity, a super-dosing enzyme mix did not improve growth. Data also indicates that Spirulina enriches meat with antioxidants and n-3 PUFA but reduces α-tocopherol and increases saturated fats. Reduced zinc content in meat suggests the need for Spirulina biofortification to maintain its nutritional value.

"There's Still Time to be Happy": The Life Trajectories of Portuguese Transgender Women Who Transitioned at 50+ Years.

The process of transitioning involves making changes to align one's life with their authentic gender identity. This study explores the life trajectories of three Portuguese transgender women who transitioned later in life (50+ years old) by identifying key chapters in their life courses. Through inductive thematic analysis, six chapters were identified from the participants' interviews: (1) awareness of "something different in me," (2) locked into suffering, (3) finding comfort in something that is socially recognized, (4) "it is enough": it is time to recognize and embrace the woman I am, (5) living my life as a woman, and (6) building and leaving a legacy. Aging and the process of self-discovery played pivotal roles in participants' process of transitioning. The perception of finitude and the limitations associated with the time of life led them to realize that there was no time to waste and a sense of urgency to live authentically.

O processo de transição envolve mudanças para alinhar a vida com a identidade de género autêntica. Este estudo explora as trajetórias de vida de três mulheres transgénero portuguesas que fizeram a transição mais tardia (depois dos 50 anos), identificando capítulos-chave nos seus percursos de vida. Através da análise temática indutiva, foram identificados seis capítulos a partir das entrevistas dos participantes: (1) consciência de "algo diferente em mim," (2) fechada no sofrimento, (3) encontrar conforto em algo que é socialmente reconhecido, (4) "já chega:" é altura de reconhecer a mulher que sou, (5) viver a minha vida como mulher, e (6) construir e deixar um legado. O envelhecimento e o processo de autodescoberta desempenharam papéis fundamentais no processo de transição das participantes. A perceção da finitude e das limitações associadas ao tempo de vida levou-as a perceber que não havia tempo a perder, dando um sentido de urgência para viver de forma autêntica.

The Portuguese mertolenga cattle breed: a review.

This review summarizes the state of the art regarding the phylogenetic origins, recent history and present-day main traits and uses of the Mertolenga cattle breed from Southern Portugal, particularly those related to production performances and product quality. Named after the historical city of Mértola, in southern Portugal, the Mertolenga is one of the fifteen autochthonous bovine breeds of Portugal. It is a cattle breed thoroughly adapted to the poor Mediterranean pastures of the southern regions of the Iberian Peninsula. It is used predominantly in an extensive to semi-intensive sylvopastoral production system called montado, where pastures are combined with helm and cork trees. Its productive traits allow for a good adaptation to the intense dry heat and pasture shortage during the summer, and compensatory growth in autumn and spring, when pastures regenerate. They are small to medium sized animals, with well-balanced bodies, roan, red, or, less often, red-spotted coats, and known for their nervous temperament. Although this breed experienced a severe decline in numbers in the 1970s and classified as endangered in the 1990s, the work of a few breeders led to the establishment of larger Mertolenga breed inventories, starting from a limited base. For this reason, the entire breed has today a strong influence from a very few herds and sires. Reproduction is still mostly achieved using natural mating, and the males are often kept with the breeding females all year long. It is a heterogeneous breed both phenotypically and genetically. Recent phylogenetic studies have revealed the Mertolenga as a one of the most genetically diverse breeds in the country and in the Iberian Peninsula and helped classify this breed, once believed to be a variety of the Alentejana breed. These studies also showed genetic relations with other breeds in the Iberian Peninsula. Mertolenga beef currently benefits from several certifications, the most important one being the PDO - Protected Denomination of Origin.

Impact of high Spirulina diet, extruded or supplemented with enzymes, on blood cells, systemic metabolites, and hepatic lipid and mineral profiles of broiler chickens.

The impact of 15% dietary inclusion of Spirulina (Arthrospira platensis) in broiler chickens was explored, focusing on blood cellular components, systemic metabolites and hepatic lipid and mineral composition. From days 14 to 35 of age, 120 broiler chickens were divided and allocated into four dietary treatments: a standard corn and soybean meal-based diet (control), a 15% Spirulina diet, a 15% extruded Spirulina diet, and a 15% Spirulina diet super-dosed with an enzyme blend (0.20% porcine pancreatin plus 0.01% lysozyme). The haematological analysis revealed no significant deviations (p > 0.05) in blood cell counts across treatments, suggesting that high Spirulina inclusion maintains haematological balance. The systemic metabolic assessment indicated an enhanced antioxidant capacity in birds on Spirulina diets (p < 0.001), pointing toward a potential reduction in oxidative stress. However, the study noted a detrimental impact on growth performance metrics, such as final body weight and feed conversion ratio (both p < 0.001), in the Spirulina-fed treatments, with the super-dosed enzyme blend supplementation failing to alleviate these effects but with extrusion mitigating them. Regarding hepatic composition, birds on extruded Spirulina and enzyme-supplemented diets showed a notable increase in n-3 fatty acids (EPA, DPA, DHA) (p < 0.001), leading to an improved n-6/n-3 PUFA ratio (p < 0.001). Despite this positive shift, a reduction in total hepatic lipids (p = 0.003) was observed without a significant change in cholesterol levels. Our findings underscore the need for further exploration into the optimal inclusion levels, processing methods and potential enzymatic enhancements of Spirulina in broiler diets. Ultimately, this research aims to strike a balance between promoting health benefits and maintaining optimal growth performance in poultry nutrition.

Interventions to address mealtime support needs in dementia: A scoping review.

The decrease in cognitive and physical ability among people with dementia can significantly affect eating performance, resulting in mealtime support needs that could lead to inadequate oral intake, weight loss, malnutrition, and reduced functionality in activities of daily living. This scoping review aimed to identify and summarize available research literature on mealtime interventions for people with dementia, and their impact on older people with dementia living in a residential care setting, care staff, and care context/environment. A scoping review of available research published in English, French, Portuguese, or Spanish, was conducted according to the methodology established by The Joanna Briggs Institute. The search was conducted between November 2022 and February 2023 in the following databases: MEDLINE, Web of Science, Scopus, CINAHL Complete, and SciELO. A total of 275 articles were retrieved, of which 33 studies were selected according to inclusion criteria. The interventions were classified into four general categories: environmental, mealtime assistance, staff training, and multicomponent. Most studies demonstrated effectiveness in increasing oral intake and improving behaviors such as agitation and aggression in people with dementia. The impact of interventions on care staff was linked to greater knowledge and attitudes towards mealtime support needs. There is a lack of reporting on the impact of interventions on the care context/environment. Most interventions examined the effects exclusively on residents, focusing on their oral intake and behavioral patterns, particularly agitation among individuals with dementia. However, it is crucial to conduct studies that evaluate the impact on administrators, to comprehend the viewpoints of various hierarchical levels within an organization regarding challenges associated with mealtime. The findings of this scoping review can support the development of new supportive programs, or strategies to improve mealtime experience with positive impact according to the reality and needs of each person or institution.

Feature Extraction Based on Local Histogram with Unequal Bins and a Recurrent Neural Network for the Diagnosis of Kidney Diseases from CT Images.

Kidney disease remains one of the most common ailments worldwide, with cancer being one of its most common forms. Early diagnosis can significantly increase the good prognosis for the patient. The development of an artificial intelligence-based system to assist in kidney cancer diagnosis is crucial because kidney illness is a global health concern, and there are limited nephrologists qualified to evaluate kidney cancer. Diagnosing and categorising different forms of renal failure presents the biggest treatment hurdle for kidney cancer. Thus, this article presents a novel method for detecting and classifying kidney cancer subgroups in Computed Tomography (CT) images based on an asymmetric local statistical pixel distribution. In the first step, the input image is non-overlapping windowed, and a statistical distribution of its pixels in each cancer type is built. Then, the method builds the asymmetric statistical distribution of the image's gradient pixels. Finally, the cancer type is identified by applying the two built statistical distributions to a Deep Neural Network (DNN). The proposed method was evaluated using a dataset collected and authorised by the Dhaka Central International Medical Hospital in Bangladesh, which includes 12,446 CT images of the whole abdomen and urogram, acquired with and without contrast. Based on the results, it is possible to confirm that the proposed method outperformed state-of-the-art methods in terms of the usual correctness criteria. The accuracy of the proposed method for all kidney cancer subtypes presented in the dataset was 99.89%, which is promising.

Streamlining the biodesulfurization process: development of an integrated continuous system prototype using Gordonia alkanivorans strain 1B.

Biodesulfurization is a biotechnological process that uses microorganisms as biocatalysts to actively remove sulfur from fuels. It has the potential to be cleaner and more efficient than the current industrial process, however several bottlenecks have prevented its implementation. Additionally, most works propose models based on direct cultivation on fuel, or batch production of biocatalysts followed by a processing step before application to batch biodesulfurization, which are difficult to replicate at a larger scale. Thus, there is a need for a model that can be adapted to a refining process, where fuel is being continuously produced to meet consumer needs. The main goal of this work was to develop the first bench-scale continuous biodesulfurization system that integrates biocatalyst production, biodesulfurization and fuel separation, into a single continuous process, taking advantage of the method for the continuous production of the biodesulfurization biocatalysts previously established. This system eliminates the need to process the biocatalysts and facilitates fuel separation, while mitigating some of the process bottlenecks. First, using the bacterium Gordonia alkanivorans strain 1B, continuous culture conditions were optimized to double biocatalyst production, and the produced biocatalysts were applied in batch biphasic biodesulfurization assays for a better understanding of the influence of different factors. Then, the novel integrated system was developed and evaluated using a model fuel (n-heptane + dibenzothiophene) in continuous biodesulfurization assays. With this system strain 1B surpassed its highest biodesulfurization rate, reaching 21 µmol h-1 g-1. Furthermore, by testing a recalcitrant model fuel, composed of n-heptane with dibenzothiophene and three alkylated derivatives (with 109 ppm of sulfur), 72% biodesulfurization was achieved by repeatedly passing the same fuel through the system, maintaining a constant response throughout sequential biodesulfurization cycles. Lastly, the system was also tested with real fuels (used tire/plastic pyrolysis oil; sweet and sour crude oils), revealing increased desulfurization activity. These results highlight the potential of the continuous biodesulfurization system to accelerate the transition from bench to commercial scale, contributing to the development of biodesulfurization biorefineries, centered on the valorization of sulfur-rich residues/biomasses for energy production.

Haloperidol's introduction in the United States: A tale of a failed trial and its consequences.

Haloperidol, the first butyrophenone neuroleptic, was created in Europe by Janssen Pharmaceuticals in 1958 and was introduced swiftly throughout the continent with great enthusiasm. On September 15, 1959, at Janssen's headquarters in Belgium, teams from around Europe praised the effectiveness of haloperidol. In the United States, on the contrary, its introduction was a tremendous failure, plagued by accusations of inefficacy and patent disputes. A clinical trial in Manhattan has been blamed for this commercial failure. The results of the Manhattan trial were seen as radically different from the results obtained in continental Europe. This divide would have considerable impact not only with regard to haloperidol's path on both sides of the Atlantic, but also possibly on the practical experience and theoretical construction of psychiatry. This article tries to reconstruct the story of that trial based mainly on published papers and interviews. Exploring how societal changes and issues of gender and race shaped this process, this investigation attempts to understand and contextualize different possible reasons for this Atlantic rift.

Cuidadores familiares de pessoas com demência: Tradução, adaptação e validação da Escala de Limites Ambíguos / Family caregivers of people with dementia: Translation, adaptation, and validation of the Boundary Ambiguity Scale / Cuidadores familiares de personas con demencia: Traducción, adaptación y validación de la Escala de Límites Ambiguos

Resumo Enquadramento: Cuidar de pessoas com demência (PcD) é gerador de stresse entre cuidadores familiares (CF). Uma das situações geradoras desse stresse é a perda ambígua (PA). Objetivos: Traduzir, adaptar e validar a Escala de Limites Ambíguos (ELA) para português europeu e determinar as caraterísticas psicométricas da ELA. Metodologia: Estudo metodológico a partir de uma amostra de 88 CF de PcD. A consistência interna (CI) avaliada com o Coeficiente de Ômega de McDonald ((), a validade de constructo através da análise fatorial exploratória (AFE) e a validade de critério com a Escala de Perceção de Stresse (EPS). Resultados: A ELA apresentou validade conteúdo excelente. A AFE determinou um modelo de dois fatores, explicando 44% da variância, ( de 0,72. Os CF que residem com a PcD apresentam maior PA (t = 2,823, p < 0,01). Correlação significativa positiva e moderada entre a ELA e a EPS (r s = 0,578, p < 0,01). Conclusão: A ELA é um instrumento com propriedade psicométrica de CI e validade aceitáveis para a avaliação da PA.

Abstract Background: Caring for people with dementia generates stress among family caregivers. One of these stressor events is ambiguous loss. Objectives: To translate, adapt, and validate the Boundary Ambiguity Scale (BAS) into European Portuguese and assess its psychometric properties. Methodology: Methodological study with a sample of 88 family caregivers of people with dementia. Internal consistency was assessed using McDonald's omega coefficient ((). Construct validity was assessed through exploratory factor analysis (EFA) and criterion validity through the Perceived Stress Scale (PSS). Results: The BAS showed excellent content validity. The EFA revealed a two-factor model, explaining 44% of variance, and a ( of 0.72. Family caregivers who live with people with dementia had greater ambiguous loss (t = 2.823, p < 0.01). A statistically significant moderate positive correlation was found between the BAS and the PSS (r s = 0.578, p < 0.01). Conclusion: The BAS has acceptable validity and internal consistency for assessing ambiguous loss.

Resumen Marco contextual: El cuidado de personas con demencia (PcD) genera estrés entre los cuidadores familiares (CF). Una de las situaciones que generan este estrés es la pérdida ambigua (PA). Objetivos: Traducir, adaptar y validar la Escala de Límites Ambiguos (ELA) al portugués europeo y determinar las características psicométricas de la ELA. Metodología: Estudio metodológico basado en una muestra de 88 CF de PcD. La consistencia interna (CI) se evaluó mediante el coeficiente omega de McDonald ((), la validez de constructo mediante el análisis factorial exploratorio (AFE) y la validez de criterio mediante la Escala de Percepción del Estrés (EPS). Resultados: La ELA presentó una validez de contenido excelente. El AFE determinó un modelo de dos factores, que explican el 44% de la varianza, ( de 0,72. Los CF que residen con PcD presentan mayor PA (t = 2,823, p < 0,01). Correlación significativa positiva y moderada entre la ELA y la EPS (r s = 0,578, p < 0,01). Conclusión: La ELA es un instrumento con propiedades psicométricas de CI y validez aceptables para la evaluación de la PA.

A pessoa dependente, o cuidador familiar e os recursos utilizados: Estudo com famílias clássicas / The dependent person, the family caregiver, and the resources used: A study with standard families / La persona dependiente, el cuidador familiar y los recursos utilizados: Un estudio con familias clásicas

Resumo Enquadramento: As transições demográficas, epidemiológicas e sociais têm implicações na (in)dependência para o autocuidado. Objetivo: Caracterizar o familiar dependente (FD), o Membro Familiar Prestador de Cuidados (MFPC) e os recursos utilizados, no contexto das famílias clássicas. Metodologia: Estudo transversal e descritivo. Amostragem de Snowball. Utilizou-se o formulário "Famílias que Integram Dependentes no Autocuidado" em 60 MFPC. Resultados: Os FD são maioritariamente do género feminino. Os cuidadores são predominantemente mulheres idosas com baixa escolaridade. Os cuidados mais básicos (e.g. alimentar, dar de beber e vestir são realizados com alguma facilidade pelo MFPC e estão garantidos. Os cuidados com intervenção mais diferenciada, como a realização de exercícios dos membros inferiores e superiores e a estimulação das funções cognitivas não são realizados. O principal recurso utilizado é o centro de saúde. Conclusão: Este estudo revela a necessidade do Enfermeiro de Família intervir nos cuidados à família em contexto domiciliário através do ensino e da implementação de cuidados mais diferenciados (reabilitação motora e estimulação cognitiva), assim como, promover a acessibilidade aos cuidados e recursos de saúde.

Abstract Background: Demographic aging and the increase in chronic diseases are reflected in high levels of dependence for self-care. Objective: To characterize the Dependent Family member (FM), the Caregiving Family Member (CFM) and the resources used, in the context of classic families. Methodology: Quantitative and descriptive study. A Snowball sample was used. The "Families that Integrate Dependents in Self-care" form was used in 60 CFM.. Results: The FM are mostly female. Caregivers are predominantly elderly women with low education. The most basic care (e.g. feeding, giving drink and dressing are carried out with some ease by the CFM and are guaranteed. Care with a more differentiated intervention, such as performing exercises for the lower and upper limbs and activities to stimulate memory, do not are carried out. The main resource used is the health center. Conclusion: This study reveals the need for Family Nurses to intervene in family care at home through teaching and implementing more differentiated care (motor rehabilitation and cognitive stimulation), as well as promoting accessibility to care and health resources.

Resumen Marco contextual: Las transiciones demográficas, epidemiológicas y sociales repercuten en la (in)dependencia de los autocuidados. Objetivo: Caracterizar al familiar dependiente (FD), al familiar cuidador (MFPC) y los recursos utilizados, en el contexto de las familias clásicas. Metodología: Estudio transversal y descriptivo. Muestreo de bola de nieve (snowball). El formulario "Familias que integran a personas dependientes en el autocuidado" se utilizó en 60 MFPC. Resultados: Los FD son mayoritariamente mujeres. Los cuidadores son predominantemente mujeres mayores con bajos niveles de educación. Los cuidados más básicos (por ejemplo, alimentar, beber y vestirse) los realizan con cierta facilidad los MFPC y están garantizados. Los cuidados con intervención más especializada, como ejercitar los miembros inferiores y superiores, y estimular las funciones cognitivas no se realizan. El principal recurso utilizado es el centro de salud. Conclusión: Este estudio pone de manifiesto la necesidad de que el enfermero de familia intervenga en los cuidados familiares en el domicilio enseñando y aplicando cuidados más especializados (rehabilitación motora y estimulación cognitiva), así como promoviendo la accesibilidad a los cuidados y recursos sanitarios.

A Systematic Approach to Intraoperative Venous Congestion in the Deep Inferior Epigastric Artery Perforator (DIEAP) Flap.

The deep Inferior epigastric artery perforator (DIEAP) flap is currently the gold standard for autologous breast reconstruction. This flap is susceptible to venous congestion, which can result in partial or complete flap loss. Apart from external causes, venous congestion may be caused by the flap's vascular architecture, either due to a dominance of the superficial venous system or due to impaired communication between the superficial and deep venous systems. This inefficient vascular architecture can be detected during surgery, and the venous outflow drainage can be improved through several techniques. We present two case reports of intraoperative venous congestion. In the first case, we performed an intra-flap rerouting, through a venous anastomosis between the superficial and the deep venous systems. In the second case, an extra-flap rerouting was executed, through a venous anastomosis between the superficial venous system and a recipient vein. We present the current institutional approach to DIEAP flap breast reconstruction, incorporating surgical insights for addressing intraoperative venous congestion.

Operative Hysteroscopy Intravascular Absorption Syndrome - A Life-Threatening Complication.

Operative hysteroscopy intravascular absorption (OHIA) syndrome is a rare and potentially life-threatening complication related to irrigation fluid systemic absorption during hysteroscopy. It can lead to severe electrolyte disturbances, cerebral and pulmonary oedema, dysrhythmias and coagulopathy. We present the case of a 30-year-old woman who underwent a hysteroscopic myomectomy. After absorbing 2.5 l of normal saline, she experienced haemodynamic instability, respiratory distress and severe metabolic acidosis, initially mistaken for an anaphylactic or haemorrhagic shock. Insufficient monitoring of fluid deficit and irrigation fluid pressures contributed to the condition. This case underscores the importance of recognising OHIA and its risk factors to enable timely intervention and prevent adverse outcomes. Close fluid balance monitoring is vital in hysteroscopic surgeries to mitigate OHIA development. LEARNING POINTS: OHIA syndrome occurs due to the systemic absorption of the irrigation fluid used during hysteroscopic procedures.The presentation is diverse with encephalopathy, pulmonary oedema, dysrhythmias, electrolyte disturbances and coagulopathy.Fluid balance and irrigation fluid pressures should be monitored during hysteroscopic procedures to mitigate OHIA development.

Validation of the hospital resources assessment scale for the preservation of urinary continence in the elderly.

OBJECTIVES: to validate the internal structure of the Hospital Resources Assessment Scale for the Preservation of Urinary Continence in the Elderly. METHODS: validation study of the internal structure of a scale constructed based on the Donabedian conceptual model and an integrative review, with prior content validation. The scale was applied to the target population, and 124 nurses responded to the questionnaire. Exploratory Factor Analysis was performed using the FACTOR software, employing multiple techniques. RESULTS: a factorial model with 11 items organized into two dimensions (support for human resources and material resources) was obtained. The "physical structure" dimension was removed from the initial model and adopted as a complementary checklist to the instrument, as it was not possible to obtain a factorable model with this dimension. CONCLUSIONS: we provide a valid scale that can measure indicators, identifying weaknesses and/or strengths related to hospital resources for the preservation of urinary continence in the elderly.

Catalytic dehydration of glycerol over Cu-Fe-Al-based oxides: understanding changes in active sites throughout the reaction.

The glycerol conversion into acetol using Fe, Al and Cu-based oxides was investigated. XRD results indicate the formation of nanosized particles with high phase dispersion, however, Raman, Mössbauer, 27Al NMR and XPS spectroscopies suggest the presence of iron(iii) oxide, Al2O3 and CuO phases. The FTIR with pyridine adsorption revealed high Lewis acidity. The TPR profile showed the reduction temperature range for the Fe3+ and Cu2+ sites, indicating the suitable condition for pretreatment. The N2 adsorption-desorption isotherms indicated the presence of micro-mesopores with interesting textural properties and specific area varying between 71 and 220 m2 g-1, while the porous morphology was observed by SEM and TEM images. The optimized catalytic tests showed glycerol conversion of 60% and acetol selectivity of 92% with 17% of coke according to TG profile. The recycling tests confirmed the efficiency of the solid, reaching 28% conversion and 91% acetol selectivity after four reuses and, after reactivation in an oxidizing atmosphere, the catalytic performance obtained results close to the second reuse. The interaction between the different Lewis acid sites involved in the mechanisms for the acetol and coke formation on the catalyst surface is discussed. The charge distribution represented by colors which indicates the acid-base surface was evaluated by a simple theoretical-computational study based on the DFT approach. The synergy between the active sites indicates that the presence of Cu0/Cu+ drastically increases the acetol selectivity which is a more important characteristic than the high Lewis acidity of Fen+ and Al3+.

Posture monitoring in healthcare: a systematic mapping study and taxonomy.

Palliative treatments for back pain usually include exercise, analgesics, physiotherapy, prostheses, and surgery in severe cases. Technologies for postural monitoring are growing, and they are important in preventing back pain and mitigating permanent damage. Remote work, especially after the COVID-19 pandemic, made people spend more time than usual in chairs and environments not certified by the health aspects of work. This research investigated through a Systematic Mapping Study (SMS) contributions in posture monitoring for healthcare in smart environments, including the different methods to obtain the posture, the limitations, and the target audience of the proposed models. The SMS was conducted in eight databases, including articles from January 2012 to March 2022. The initial search yielded 3161 articles, of which 34 were selected after applying the filtering criteria. Moreover, this study presents the challenges related to posture behavior monitoring, identifying studies and implementations that apply assistive technology for postural monitoring and improving the health and life of remote workers. In addition, three commercial postural devices are presented, and what challenges they currently face. Regarding healthcare, results showed a prevalence of using the Internet of Things (IoT) devices such as wireless sensor networks and inertial measurement unit (IMU) sensors. This article also proposes a taxonomy, showing the most used technologies and algorithms for improving posture, besides the posture-monitoring hierarchy classifying into three important branches: (a) Data Collect; (b) Data Transmission; and (c) Data Analysis.

Validation of the Portuguese version of the social isolation scale with a sample of community-dwelling older adults.

Objectives: The aim of this study was to analyze the psychometric properties (reliability and validity) of the Social Isolation Scale (SIS) in a sample of Portuguese community-dwelling older adults. Methods: A transversal descriptive study was carried out with a convenience sample of 250 community-dwelling older adults (≥65 years). The survey comprised a sociodemographic questionnaire, SIS, Geriatric Depression Scale-4 (GDS-4), 6-item Lubben Social Network Scale (LSNS-6), a loneliness self-assessment question, and Satisfaction with Life Scale (SWLS). Construct validity (confirmatory factor analysis) and convergent validity were analyzed, and ISI internal reliability (composite reliability), external reliability (test-retest, intraclass correlation coefficient) and inter-rater reliability (Cohen's kappa coefficient) were evaluated. Results: Confirmatory factor analysis showed a two-factor model with an excellent index of fit. The SIS showed significant correlations with LSNS-6 (r s  = 0.47), SWLS (r s  = 0.26), the loneliness self-assessment question (r s = 0.35), and GDS-4 (r s  = -0.16). SIS composite reliability was good (0.708). The inter-class correlation coefficient varied from 0.84 to 0.98. The Cohen's kappa coefficient ranged from 0.936 to 1. Conclusions: SIS has been shown to be a valid and reliable instrument for assessing social isolation among Portuguese community-dwelling older adults. Healthcare professionals, particularly nurses working in community settings, can use SIS to assess social isolation in older adults to design, implement, and evaluate interventions.

Economic and financial model to the mass-rearing of Macrolophus pygmaeus (Rambur) (Heteroptera: Miridae), a biological control agent against the tomato moth Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in protected culture.

BACKGROUND: Tuta absoluta (Meyrick) is a major pest of tomato produced in glasshouses and open field, causing severe damages to crops, reducing the quality of tomato fruits. The current maintenance of the pest populations below the economic threshold is not achieved by natural and classical control, thus requiring the continuous application of biological control agents (BCAs), under an augmentative or inoculative approach. The present study aims to develop an economic and financial model to evaluate the commercial viability of a continuous mass production of Macrolophus pygmaeus (Rambur), a BCA commonly used against the tomato moth, Tuta absoluta, in protected culture. The estimations for our model were based on two approaches: the farm-level impact analysis and the benefit-cost analysis. RESULTS: The results of the farm-level analysis show that the adoption of a more sustainable biological control approach is profitable for farmers and the benefit-cost analysis provides evidence that the investment on a new factory dedicated to the mass rearing of M. pygmaeus to control tomato moth populations generates a positive net present value (NPV) of 7.2 million euros, corresponding to an internal rate of return (IRR) of 28.4% per year. CONCLUSION: Our results are in line with (i) the more recent European Commission proposals for a new Regulation on sustainable use of plant protection products, which includes the reduction of 50% the use and risk of chemical pesticides by 2030 and (ii) most of the existing literature which conclude that new projects on BCA production are worth investments. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Development of a bench-scale photobioreactor with a novel recirculation system for continuous cultivation of microalgae.

Microalgae cultivation can be used to increase the sustainability of carbon emitting processes, converting the CO2 from exhaust gases into fuels, food and chemicals. Many of the carbon emitting industries operate in a continuous manner, for periods that can span days or months, resulting in a continuous stream of gas emissions. Biogenic CO2 from industrial microbiological processes is one example, since in many cases it becomes unsustainable to stop these processes on a daily or weekly basis. To correctly sequester these emissions, microalgae systems must be operated under continuous constant conditions, requiring photobioreactors (PBRs) that can act as chemostats for long periods of time. However, in order to optimize culture parameters or study metabolic responses, bench-scale setups are necessary. Currently there is a lack of studies and design alternatives using chemostat, since most works focus on batch assays or semi-continuous cultures. Therefore, this work focused on the development of a continuous bench-scale PBR, which combines a retention vessel, a photocollector and a degasser, with an innovative recirculation system, that allows it to operate as an autotrophic chemostat, to study carbon sequestration from a biogenic CO2-rich constant air stream. To assess its applicability, the PBR was used to cultivate the green microalga Haematococcus pluvialis using as sole carbon source the CO2 produced by a coupled heterotrophic bacterial chemostat. An air stream containing ≈0.35 vol% of CO2, was fed to the system, and it was evaluated in terms of stability, carbon fixation and biomass productivity, for dilution rates ranging from 0.1 to 0.5 d-1. The PBR was able to operate under chemostat conditions for more than 100 days, producing a stable culture that generated proportional responses to the stimuli it was subjected to, attaining a maximum biomass productivity of 183 mg/L/d with a carbon fixation efficiency of ≈39% at 0.3 d-1. These results reinforce the effectiveness of the developed PBR system, making it suitable for laboratory-scale studies of continuous photoautotrophic microalgae cultivation.

Factors Associated With the Occurrence of Adverse Effects Resulting From Hypodermoclysis in Older Adults in Palliative Care: A Cohort Study.

This study aimed to analyze the factors associated with local adverse effects resulting from hypodermoclysis in older adult patients in palliative care. The study involved 127 older adults undergoing palliative care at a hospital in southeastern Brazil. Data collection was performed from August to November 2019. Patients aged 60 years or older, with a prescription for hypodermoclysis at the time of admission and who were not receiving hypodermoclysis at the time of admission, were included. Data collected included sociodemographic, clinical, pharmacotherapeutic, and adverse effects of hypodermoclysis administration. Most participants were women (59.0%), with a mean age of 78.5 years. Frailty was the most prevalent diagnosis (26.8%), and 80.2% of patients were in the end-of-life stage. There was an incidence of 24.0% of adverse events, with catheter obstruction and swelling in the surrounding area of the hypodermoclysis site being the most frequent at 11.3% and 8.5%, respectively. Ondansetron administration by hypodermoclysis was 3 times more likely to have an adverse effect compared to not using this drug. In contrast, a protective factor was evident with the administration of 0.9% sodium chloride, which contributed to the reduction of complications. The occurrence of adverse effects from hypodermoclysis in the study population of older adults in palliative care was low.