567 research outputs found
The rare case of positive FDG-positron emission tomography for giant cavernous hemangioma of the liver
Hemangioma is the most common benign liver tumor and the second most common liver tumor after metastases. Large hemangiomas are often heterogeneous. When they exceed 4 cm in diameter, they are termed giant hemangiomas. These giant hemangiomas often present heterogeneous patterns. These heterogeneous appearances are shown because of intratumoral changes due to several
degenerative phenomena. PET/CT is reported to be useful for the differentiation of benign from malignant liver lesions. We report the case of a large hepatic hemangioma characterized by high FDG uptake
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A Cultural Quest: A Study of Organizational Use of New Cultural Resources in Strategy Formation.
Our study was motivated by the growing influence in cultural sociology and organizational research of the view of culture as a “toolkit”, from which individuals draw resources flexibly to develop strategies of action that address different circumstances. To investigate if and how organizations can also use new and diverse cultural resources, we undertook a historical case study of the incorporation of new cultural resources in an organization’s cultural repertoire. In-depth analysis of four rounds of incorporation of new cultural resources led to the development of a robust theoretical model that identifies cultural repertoire enrichment and organizational identity redefinition as two core mechanisms that facilitate the use of new cultural resources for the development of unconventional strategies and strategic versatility. Our model contributes to organizational research novel theoretical understanding regarding the use of cultural resources in strategy formation and change
Histopathologic predictors of survival and recurrence in resected ampullary adenocarcinoma
Objective: The aim of the study was to define histopathologic characteristics that independently predict overall survival (OS) and disease-free survival (DFS), in patients who underwent resection of an ampullary adenocarcinoma with curative intent.
Summary Background Data: A broad range of survival rates have been described for adenocarcinoma of the ampulla of Vater, presumably due to morphological heterogeneity which is a result of the different epitheliums ampullary adenocarcinoma can arise from (intestinal or pancreaticobiliary). Large series with homogenous patient selection are scarce.
Methods: A retrospective multicenter cohort analysis of patients who underwent pancreatoduodenectomy for ampullary adenocarcinoma in 9 European tertiary referral centers between February 2006 and December 2017 was performed. Collected data included demographics, histopathologic details, survival, and recurrence. OS and DFS analyses were performed using Kaplan–Meier curves and Cox proportional hazard models.
Results: Overall, 887 patients were included, with a mean age of 66 ± 10 years. The median OS was 64 months with 1-, 3-, 5-, and 10-year OS rates of 89%, 63%, 52%, and 37%, respectively. Histopathologic subtype, differentiation grade, lymphovascular invasion, perineural invasion, T-stage, N-stage, resection margin, and adjuvant chemotherapy were correlated with OS and DFS. N-stage (HR = 3.30 [2.09–5.21]), perineural invasion (HR = 1.50 [1.01–2.23]), and adjuvant chemotherapy (HR = 0.69 [0.48–0.97]) were independent predictors of OS in multivariable analysis, whereas DFS was only adversely predicted by N-stage (HR = 2.65 [1.65–4.27]).
Conclusions: Independent predictors of OS in resected ampullary cancer were N-stage, perineural invasion, and adjuvant chemotherapy. N-stage was the only predictor of DFS. These findings improve predicting survival and recurrence after resection of ampullary adenocarcinoma
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Combining Logics to Transform Organizational Agency: Blending Industry and Art at Alessi
To understand how organizations combine conflicting institutional logics strategically to create and pursue new market opportunities, we conducted an in-depth longitudinal study of the multiple efforts of the Italian manufacturer of household goods Alessi to combine the logics of industrial manufacturing and cultural production. Over three decades, Alessi developed three different strategies to combine normative elements of the two logics, using each strategy to envision and pursue different market opportunities. By combining the logics of industrial manufacturing and cultural production, Alessi was able to envision new possibilities for value creation and to enact them through innovation in product design. The three strategies triggered a common set of mechanisms through which the purposeful combining of logics enabled the pursuit of opportunity, while each strategy structured the process differently. We develop a theoretical model linking the development of recombinant strategies to the dynamic restructuring of organizational agency and the related capacity to create and pursue new market opportunities. Our findings and theoretical insights advance understanding of the processes through which organizations challenge taken-for-granted beliefs and practices to create new market opportunities, use logics as resources to enable embedded agency, and design hybrid organizational arrangements
Collective mapping: participatory approaches to community health-disease-care process
La atención primaria de la salud renovada entiende a la salud como un derecho que busca la construcción de la ciudadanía a través de la participación comunitaria (De Lellis, 2015). Esto genera un desafío en lo que respecta a los modos de trabajar en conjunto con las poblaciones ya que exige nuevas modalidades de trabajo conjunto tanto en la identificación de necesidades como en la gestión del sistema de salud. El reconocimiento del lugar en donde se desarrolla la vida cotidiana es indispensable para identificar los espacios y los modos de vida que se desenvuelven en los territorios, para así tener un acercamiento a los procesos de salud-enfermedad- atención de las comunidades. El mapeo colectivo es una técnica que permite visibilizar hábitos y espacios importantes donde transcurre la vida cotidiana de los y las diferentes actores a partir de la identificación y reconocimiento del barrio desde las representaciones sociales de los y las participantes del mismo
'My language, my people': language and ethnic identity among British‐born South Asians
This study explores how a group of second generation Asians (SGA) understood and defined language, focusing upon the role they perceived language to have played in their identity. Twelve SGA were interviewed and the data were subjected to qualitative thematic analysis. Four superordinate themes are reported, entitled 'Mother tongue and self', #A sense of ownership and affiliation', 'Negotiating linguistic identities in social space' and 'The quest for a positive linguistic identity'. Participants generally expressed a desire to maintain continuity of self‐definition as Asian, primarily through the maintenance of the heritage language (HL). An imperfect knowledge of the HL was said to have a negative impact upon psychological well‐being. There were ambivalent responses to the perception of language norms, and various strategies were reported for dealing with dilemmatic situations and identity threat arising from bilingualism. Recommendations are offered for interventions that might aid the ‘management’ of bilingualism among SGA
The Difficulty of Detecting Occult Metastases in Patients with Potentially Resectable Pancreatic Cancer:Development and External Validation of a Preoperative Prediction Model
Occult metastases are detected in 10–15% of patients during exploratory laparotomy for pancreatic cancer. This study developed and externally validated a model to predict occult metastases in patients with potentially resectable pancreatic cancer. Model development was performed within the Dutch Pancreatic Cancer Audit, including all patients operated for pancreatic cancer (January 2013–December 2017). Multivariable logistic regression analysis based on the Akaike Information Criteria was performed with intraoperative pathologically proven metastases as the outcome. The model was externally validated with a cohort from the University Hospital of Verona (January 2013–December 2017). For model development, 2262 patients were included of whom 235 (10%) had occult metastases, located in the liver (n = 143, 61%), peritoneum (n = 73, 31%), or both (n = 19, 8%). The model included age (OR 1.02, 95% CI 1.00–1.03), BMI (OR 0.96, 95% CI 0.93–0.99), preoperative nutritional support (OR 1.73, 95% CI 1.01–2.74), tumor diameter (OR 1.60, 95% CI 1.04–2.45), tumor composition (solid vs. cystic) (OR 2.33, 95% CI 1.20–4.35), and indeterminate lesions on preoperative imaging (OR 4.01, 95% CI 2.16–7.43). External validation showed poor discrimination with a C-statistic of 0.56. Although some predictor variables were significantly associated with occult metastases, the model performed insufficiently at external validation.</p
A.I. Into Fashion Processes: Laying The Groundwork
The article aims to provide a comprehensive understanding of Artificial Intelligence (AI) and its
integration into fashion processes, focusing on the research, design, development, and manufacturing
stages. First, it offers an overview of AI evolution, from its early developments to the
contemporary advanced Machine and Deep learning models, attempting to tackle the challenge
of ambiguous terminology and aiming to deal with the different interpretations of AI capabilities.
Subsequently, a review of the perspectives on the integration of AI tools within fashion
processes will be presented. This overview will underscore the growing need for industries to
undergo a conscious technological transformation, adopting AI toward a more sustainable and
responsible fashion evolution
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