28 research outputs found
Emerging startup studios in Portugal : organizational characteristics of Portuguese startup studios
There is an emerging trend in the entrepreneurial landscape which promises to become
revolutionary: Startup Studios. This emerging incubation model is generally characterized by
the development of internally generated ideas and the creation of its own cohort of startups,
supported by internal resources and a multidisciplinary team. Despite the Startup Studio model
being already highly implemented in bigger and more developed entrepreneurial ecosystems,
the infancy of the underlying concept and the diverging way each Startup Studio organizes
itself, combined with the lack of academic research on this topic leaves an unclear definition of
the Startup Studio concept. This thesis aims to clarify the definition of the Startup Studio
concept and its characteristics. Moreover, it focuses on the implementation of the studio
incubator model in smaller and emerging entrepreneurial ecosystems to understand if it can be
a viable alternative to foster innovation and prompt economic development. Thus, two case
studies of Startup Studios in Portugal were conducted. The findings of this analysis revealed
that elements like funding, type of founders and exit strategy will be context specific, differing
from Startup Studios in bigger economies. However, elements like ideation process, equity
distribution, operations and team set up of Startup Studios in smaller and emerging
entrepreneurial ecosystem will be like the ones found in more developed entrepreneurial
ecosystem. Based on this evidence, a definition for the Startup Studios is suggested as well as
the proposition of the possible implication of the studio incubator model in smaller economies.Tem-se observado uma tendência emergente que promete revolucionar o panorama de empreendedorismo: os Startup Studios. Este modelo de incubação emergente é geralmente caracterizado pelo desenvolvimento de ideias geradas internamente e pela criação do seu próprio grupo de startups incubadas, suportado pela utilização de recursos internos e por uma equipa multidisciplinar. Apesar deste modelo já estar largamente implementado em ecossistemas de empreendedorismo mais desenvolvidos, a infância do conceito subjacente e a forma como cada Startup Studio se organiza, em conjunto com a falta de investigação académica sobre este tópico deixa uma definição pouco clara do conceito. Esta tese tem como objetivo esclarecer a definição do conceito do Startup Studio e suas características. Além disso, concentra-se na implementação deste modelo de incubação em ecossistemas de empreendedorismo menores e emergentes, para entender se o mesmo pode ser considerado uma alternativa viável para promover inovação e o desenvolvimento económico destes ecossistemas. Assim, foi conduzido um estudo de caso com dois Startup Studios em Portugal. Os resultados desta análise revelaram que elementos como financiamento, tipo de fundadores e estratégia de saída são específicos ao contexto e diferentes dos observados em Startup Studios em economias mais desenvolvidas. No entanto, elementos como processo de ideação, distribuição de capital, operações e a configuração da equipa nos Startup Studios em ecossistemas de empreendedorismo emergentes serão semelhantes aos encontrados em ecossistemas de empreendedorismo mais desenvolvidos. Com base nestas evidências, sugere-se uma definição para o conceito de Startup Studio, bem como as possíveis implicações que este modelo terá em economias menores
Meniscus subluxation retensioning: “autotransplant”
Knee osteoarthritis (OA) is a common condition in the older population and is characterized by several articular dysfunctions with consequent anatomic abnormalities including osteochondral degenerative changes and meniscal extrusion. Meniscal damage with extrusion is one of the strongest identified risk factors for the development and progression of knee OA and represents an important factor in the long-term health of the joint. Meniscal extrusion can alter normal knee biomechanics and dramatically inhibit meniscal function. We present a surgical technique for the treatment of early knee OA in association with an extruded meniscus to restore the meniscal anatomic position and preserve its native physiological function related to cartilage preservation. Meniscal retensioning, or a "meniscal autotransplant," can increase meniscal coverage in the compromised compartment, prevent cartilage degeneration, decrease subchondral bone exposure, and restore the compartmental space and, consequently, can relieve patients' symptoms related to early OA.The experimental work (arthroscopy laboratory) and surgical equipment were financially supported by Arthrex. Video 1 was edited by Arthrex. J.E-M. received support for travel-related expenses and laboratory equipment from Arthrex for this study. R.B. received support for travel-related expenses and laboratory equipment from Arthrex for this study. Full ICMJE author disclosure forms are available for this article online, as supplementary material
Active regulatory T-cells contribute to broadened T-cell repertoire diversity in ivIg-treated SLE patients
Octapharma
Neuropathology of animal prion diseases
Transmissible Spongiform Encephalopathies (TSEs) or prion diseases are a fatal group of infectious, inherited and spontaneous neurodegenerative diseases affecting human and animals. They are caused by the conversion of cellular prion protein (PrPC) into a misfolded pathological isoform (PrPSc or prion- proteinaceous infectious particle) that self-propagates by conformational conversion of PrPC. Yet by an unknown mechanism, PrPC can fold into different PrPSc conformers that may result in different prion strains that display specific disease phenotype (incubation time, clinical signs and lesion profile). Although the pathways for neurodegeneration as well as the involvement of brain inflammation in these diseases are not well understood, the spongiform changes, neuronal loss, gliosis and accumulation of PrPSc are the characteristic neuropathological lesions. Scrapie affecting small ruminants was the first identified TSE and has been considered the archetype of prion diseases, though atypical and new animal prion diseases continue to emerge highlighting the importance to investigate the lesion profile in naturally affected animals. In this report, we review the neuropathology and the neuroinflammation of animal prion diseases in natural hosts from scrapie, going through the zoonotic bovine spongiform encephalopathy (BSE), the chronic wasting disease (CWD) to the newly identified camel prion disease (CPD).info:eu-repo/semantics/publishedVersio
Scrapie at abattoir: monitoring, control, and differential diagnosis of wasting conditions during meat inspection
Wasting disease in small ruminants is frequently detected at slaughterhouses. The wasting disorder is manifested by the deterioration of the nutritional and physiological state of the animal indicated by thinness, emaciation, and cachexia. Evidence of emaciation and cachexia, alone, are pathological conditions leading to carcass condemnation during an inspection. Several diseases are associated with a wasting condition, including scrapie, pseudotuberculosis, tuberculosis, paratuberculosis, Maedi Visna, and tumor diseases. On the other hand, parasitic diseases, nutrition disorders, exposure or ingestion of toxins, metabolic conditions, inadequate nutrition due to poor teeth, or poor alimentary diet are conditions contributing to poor body condition. Classical and atypical scrapie is naturally occurring transmissible spongiform encephalopathies in small ruminants. The etiological agent for each one is prions. However, each of these scrapie types is epidemiologically, pathologically, and biochemically different. Though atypical scrapie occurs at low incidence, it is consistently prevalent in the small ruminant population. Hence, it is advisable to include differential diagnosis of this disease, from other possibilities, as a cause of wasting conditions detected during meat inspection at the abattoir. This manuscript is a review of the measures in force at the abattoir for scrapie control, focusing on the differential diagnosis of gross lesions related to wasting conditions detected in small ruminants during meat inspection.This article was funded by the Project POCI-01-0145-FEDER-029947 “Chronic wasting
disease risk assessment in Portugal” supported by FCT (Fundação para a Ciência e a Tecnologia)-
FEDER-Balcão2020, projects UIDB/04033/2020. Nuno Gonçalves-Anjo has a Ph.D. grant scholarship
(reference number SFRH/BD/146961/2019) financed by FCT through FSE (Fundo Social Europeu).
Also, the authors of the research unit CECAV and CITAB received funding from the FCT, under the
projects UIDB/CVT/0772/2020 and UIDB/04033/2020, respectively.info:eu-repo/semantics/publishedVersio
Mycobacterium tuberculosis associated with severe tuberculosis evades cytosolic surveillance systems and modulates IL-1β production
Genetic diversity of Mycobacterium tuberculosis affects immune responses and clinical outcomes of tuberculosis (TB). However, how bacterial diversity orchestrates immune responses to direct distinct TB severities is unknown. Here we study 681 patients with pulmonary TB and show that M. tuberculosis isolates from cases with mild disease consistently induce robust cytokine responses in macrophages across multiple donors. By contrast, bacteria from patients with severe TB do not do so. Secretion of IL-1β is a good surrogate of the differences observed, and thus to classify strains as probable drivers of different TB severities. Furthermore, we demonstrate that M. tuberculosis isolates that induce low levels of IL-1β production can evade macrophage cytosolic surveillance systems, including cGAS and the inflammasome. Isolates exhibiting this evasion strategy carry candidate mutations, generating sigA recognition boxes or affecting components of the ESX-1 secretion system. Therefore, we provide evidence that M. tuberculosis strains manipulate host-pathogen interactions to drive variable TB severities
Broadened T-cell Repertoire Diversity in ivIg-treated SLE Patients is Also Related to the Individual Status of Regulatory T-cells
Intravenous IgG (ivIg) is a therapeutic alternative for lupus erythematosus, the mechanism of which remains to be fully understood. Here we investigated whether ivIg affects two established sub-phenotypes of SLE, namely relative oligoclonality of circulating T-cells and reduced activity of CD4 + Foxp3+ regulatory T-cells (Tregs) reflected by lower CD25 surface density.Octapharma research funding; Fundação para a Ciência e a Tecnologia postdoctoral fellowships: (SFRH/BPD/20806/2004, SFRH/BPD/34648/2007); FCT Programa Pessoa travel grant
Broadened T-cell Repertoire Diversity in ivIg-treated SLE Patients is Also Related to the Individual Status of Regulatory T-cells
Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019: a pooled analysis of 1201 population-representative studies with 104 million participants
Background
Hypertension can be detected at the primary health-care level and low-cost treatments can effectively control hypertension. We aimed to measure the prevalence of hypertension and progress in its detection, treatment, and control from 1990 to 2019 for 200 countries and territories.
Methods
We used data from 1990 to 2019 on people aged 30–79 years from population-representative studies with measurement of blood pressure and data on blood pressure treatment. We defined hypertension as having systolic blood pressure 140 mm Hg or greater, diastolic blood pressure 90 mm Hg or greater, or taking medication for hypertension. We applied a Bayesian hierarchical model to estimate the prevalence of hypertension and the proportion of people with hypertension who had a previous diagnosis (detection), who were taking medication for hypertension (treatment), and whose hypertension was controlled to below 140/90 mm Hg (control). The model allowed for trends over time to be non-linear and to vary by age.
Findings
The number of people aged 30–79 years with hypertension doubled from 1990 to 2019, from 331 (95% credible interval 306–359) million women and 317 (292–344) million men in 1990 to 626 (584–668) million women and 652 (604–698) million men in 2019, despite stable global age-standardised prevalence. In 2019, age-standardised hypertension prevalence was lowest in Canada and Peru for both men and women; in Taiwan, South Korea, Japan, and some countries in western Europe including Switzerland, Spain, and the UK for women; and in several low-income and middle-income countries such as Eritrea, Bangladesh, Ethiopia, and Solomon Islands for men. Hypertension prevalence surpassed 50% for women in two countries and men in nine countries, in central and eastern Europe, central Asia, Oceania, and Latin America. Globally, 59% (55–62) of women and 49% (46–52) of men with hypertension reported a previous diagnosis of hypertension in 2019, and 47% (43–51) of women and 38% (35–41) of men were treated. Control rates among people with hypertension in 2019 were 23% (20–27) for women and 18% (16–21) for men. In 2019, treatment and control rates were highest in South Korea, Canada, and Iceland (treatment >70%; control >50%), followed by the USA, Costa Rica, Germany, Portugal, and Taiwan. Treatment rates were less than 25% for women and less than 20% for men in Nepal, Indonesia, and some countries in sub-Saharan Africa and Oceania. Control rates were below 10% for women and men in these countries and for men in some countries in north Africa, central and south Asia, and eastern Europe. Treatment and control rates have improved in most countries since 1990, but we found little change in most countries in sub-Saharan Africa and Oceania. Improvements were largest in high-income countries, central Europe, and some upper-middle-income and recently high-income countries including Costa Rica, Taiwan, Kazakhstan, South Africa, Brazil, Chile, Turkey, and Iran.
Interpretation
Improvements in the detection, treatment, and control of hypertension have varied substantially across countries, with some middle-income countries now outperforming most high-income nations. The dual approach of reducing hypertension prevalence through primary prevention and enhancing its treatment and control is achievable not only in high-income countries but also in low-income and middle-income settings
Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight NCD Risk Factor Collaboration (NCD-RisC)
From 1985 to 2016, the prevalence of underweight decreased, and that of obesity and severe obesity increased, in most regions, with significant variation in the magnitude of these changes across regions. We investigated how much change in mean body mass index (BMI) explains changes in the prevalence of underweight, obesity, and severe obesity in different regions using data from 2896 population-based studies with 187 million participants. Changes in the prevalence of underweight and total obesity, and to a lesser extent severe obesity, are largely driven by shifts in the distribution of BMI, with smaller contributions from changes in the shape of the distribution. In East and Southeast Asia and sub-Saharan Africa, the underweight tail of the BMI distribution was left behind as the distribution shifted. There is a need for policies that address all forms of malnutrition by making healthy foods accessible and affordable, while restricting unhealthy foods through fiscal and regulatory restrictions