33 research outputs found
The Hunger Games: Katniss Everdeen\u27s Effort To Gain American Pragmatism Goals In Terms Of American Values
As one of a popular American novel which was published recently, The Hunger Games composed by Suzanne Collins, provides a significant description about the manifestation of American values portrayed by the main character, KatnissEverdeen.Katniss\u27 efforts in the novel are in line with the principle of American Pragmatism, which later on can be analyzed by its relation with the idea of American values, the grounding idea of the framing of this great American philosophy. By applying a sociological approach, this study discover the existence of the two roots of American culture known as American values and American Pragmatism, are still preserved. Katniss successfully manifests the goals of American Pragmatism that certainly taken from American values\u27 idea through her struggle told in the novel. This result leads to the comprehension of how American values influence American\u27s mind in fulfilling their goals or achievements
Factores de marketing que determinan el rendimiento internacional de las empresas exportadoras espa帽olas : enfoque sobre las empresas born-global
El estudio de las nuevas empresas se ha convertido en una parte importante de la literatura sobre la creaci贸n de empresas internacionales y dentro de este campo las empresas que empiezan la actividad internacional a poco tiempo despu茅s de su creaci贸n, nombradas empresas born-global, en adelante BG*, empiezan a despertar el inter茅s de los investigadores. En Espa帽a, hasta la fecha el n煤mero de estudios, que han investigado las empresas BG, es limitado. El objetivo de la investigaci贸n es contribuir a explicar los factores claves, principalmente de marketing, que influyen sobre el rendimiento internacional de las empresas BG espa帽olas y las empresas exportadoras tradicionales. En base a una revisi贸n de la literatura espec铆fica, se desarrolla un modelo para explicar los factores determinantes del rendimiento internacional de este tipo de empresas, que es comprobado en una muestra de 29 empresas BG y 26 empresas exportadoras tradicionales. Los resultados demuestran que el modelo es significativo, los factores propuestos influyen sobre el rendimiento internacional de estas empresas. Sin embargo, s贸lo uno de los factores propuestos, la calidad del producto, es el factor clave que m谩s determina el rendimiento internacional de las empresas BG, y para las empresas exportadoras tradicionales es otro factor distinto, la diferenciaci贸n del producto, lo que m谩s determina el rendimiento internacional. Conclusiones y limitaciones del estudio son presentadas junto con indicaciones para futuras investigaciones
Arrhythmias and Conduction Disturbances in Patients with Systemic Sclerosis鈥擜 Systematic Literature Review
Systemic sclerosis (SSc) is an autoimmune disease characterized by skin and internal organ fibrosis and microvascular impairment, which can affect major organs, including the heart. Arrhythmias are responsible for approximately 6% of deaths in patients with SSc, and mainly occur due to myocardial fibrosis, which causes electrical inhomogeneity. The aim of this study was to determine the frequency of arrhythmias and conduction disturbances in SSc cohorts, and to identify the characteristics and risk factors associated with the occurrence of dysrhythmias in patients with SSc. A systematic literature review using PubMed, Embase, Web of Science and Scopus databases was performed. Full-text articles in English with arrhythmias as the main topic published until 21 April 2022 were included. Most prevalent arrhythmias were premature supraventricular and ventricular contractions, while the most frequent conduction disturbance was represented by right bundle branch block (RBBB). Elevated concentrations of N-terminal prohormones of brain natriuretic peptides (NT-pro BNP) were associated with numerous types of atrial and ventricular arrhythmias, and with the occurrence of RBBB. A lower value of the turbulence slope (TS) emerged as an independent predictor for ventricular arrhythmias. In conclusion, dysrhythmias are frequent in SSc cohorts. Paraclinical and laboratory parameters are useful instruments that could lead to early diagnosis in the course of the disease
Stratification in systemic sclerosis according to autoantibody status versus skin involvement: a study of the prospective EUSTAR cohort
Background: The current subclassification of systemic sclerosis into cutaneous subtypes does not fully capture the heterogeneity of the disease. We aimed to compare the performances of stratification into LeRoy's cutaneous subtypes versus stratification by autoantibody status in systemic sclerosis. Methods: For this cohort study, we assessed people with systemic sclerosis in the multicentre international European Scleroderma Trials and Research (EUSTAR) database. Individuals positive for systemic-sclerosis autoantibodies of two specificities were excluded, and remaining individuals were classified by cutaneous subtype, according to their systemic sclerosis-specific autoantibodies, or both. We assessed the performance of each model to predict overall survival, progression-free survival, disease progression, and different organ involvement. The three models were compared by use of the area under the curve (AUC) of the receiver operating characteristic and the net reclassification improvement (NRI). Missing data were imputed. Findings: We assessed the database on July 26, 2019. Of 16 939 patients assessed for eligibility, 10 711 patients were included: 1647 (15路4%) of 10 709 were male, 9062 (84路6%) were female, mean age was 54路4 (SD 13路8) years, and mean disease duration was 7路9 (SD 8路2) years. Information regarding cutaneous subtype was available for 10 176 participants and antibody data were available for 9643 participants. In the prognostic analysis, there was no difference in AUC for overall survival (0路82, 95% CI 0路81-0路84 for cutaneous only vs 0路84, 0路82-0路85 for antibody only vs 0路84, 0路83-0路86 for combined) or for progression-free survival (0路70, 0路69-0路71 vs 0路71, 0路70-0路72 vs 0路71, 0路70-0路72). However, at 4 years the NRI showed substantial improvement for the antibody-only model compared with the cutaneous-only model in prediction of overall survival (0路57, 0路46-0路71 for antibody only vs 0路29, 0路19-0路39 for cutaneous only) and disease progression (0路36, 0路29-0路46 vs 0路21, 0路14-0路28). The antibody-only model did better than the cutaneous-only model in predicting renal crisis (AUC 0路72, 0路70-0路74 for antibody only vs 0路66, 0路64-0路69 for cutaneous only) and lung fibrosis leading to restrictive lung function (AUC 0路76, 0路75-0路77 vs 0路71, 0路70-0路72). The combined model improved the prediction of digital ulcers and elevated systolic pulmonary artery pressure, but did poorly for cardiac involvement. Interpretation: The autoantibody-only model outperforms cutaneous-only subsetting for risk stratifying people with systemic sclerosis in the EUSTAR cohort. Physicians should be aware of these findings at the time of decision making for patient management. Funding: World Scleroderma Foundation
Racial differences in systemic sclerosis disease presentation: a European Scleroderma Trials and Research group study
Objectives. Racial factors play a significant role in SSc. We evaluated differences in SSc presentations between white patients (WP), Asian patients (AP) and black patients (BP) and analysed the effects of geographical locations.Methods. SSc characteristics of patients from the EUSTAR cohort were cross-sectionally compared across racial groups using survival and multiple logistic regression analyses.Results. The study included 9162 WP, 341 AP and 181 BP. AP developed the first non-RP feature faster than WP but slower than BP. AP were less frequently anti-centromere (ACA; odds ratio (OR) = 0.4, P < 0.001) and more frequently anti-topoisomerase-I autoantibodies (ATA) positive (OR = 1.2, P = 0.068), while BP were less likely to be ACA and ATA positive than were WP [OR(ACA) = 0.3, P < 0.001; OR(ATA) = 0.5, P = 0.020]. AP had less often (OR = 0.7, P = 0.06) and BP more often (OR = 2.7, P < 0.001) diffuse skin involvement than had WP.AP and BP were more likely to have pulmonary hypertension [OR(AP) = 2.6, P < 0.001; OR(BP) = 2.7, P = 0.03 vs WP] and a reduced forced vital capacity [OR(AP) = 2.5, P < 0.001; OR(BP) = 2.4, P < 0.004] than were WP. AP more often had an impaired diffusing capacity of the lung than had BP and WP [OR(AP vs BP) = 1.9, P = 0.038; OR(AP vs WP) = 2.4, P < 0.001]. After RP onset, AP and BP had a higher hazard to die than had WP [hazard ratio (HR) (AP) = 1.6, P = 0.011; HR(BP) = 2.1, P < 0.001].Conclusion. Compared with WP, and mostly independent of geographical location, AP have a faster and earlier disease onset with high prevalences of ATA, pulmonary hypertension and forced vital capacity impairment and higher mortality. BP had the fastest disease onset, a high prevalence of diffuse skin involvement and nominally the highest mortality
Factores de marketing que determinan el rendimiento internacional de las empresas exportadoras espa帽olas: enfoque sobre las empresas born-global
El estudio de las nuevas empresas se ha convertido en una parte importante de la literatura sobre la creaci贸n de empresas internacionales y dentro de este campo las empresas que empiezan la actividad internacional a poco tiempo despu茅s de su creaci贸n, nombradas empresas born-global, en adelante BG*, empiezan a despertar el inter茅s de los investigadores. En Espa帽a, hasta la fecha el n煤mero de estudios, que han investigado las empresas BG, es limitado. El objetivo de la investigaci贸n es contribuir a explicar los factores claves, principalmente de marketing, que influyen sobre el rendimiento internacional de las empresas BG espa帽olas y las empresas exportadoras tradicionales. En base a una revisi贸n de la literatura espec铆fica, se desarrolla un modelo para explicar los factores determinantes del rendimiento internacional de este tipo de empresas, que es comprobado en una muestra de 29 empresas BG y 26 empresas exportadoras tradicionales. Los resultados demuestran que el modelo es significativo, los factores propuestos influyen sobre el rendimiento internacional de estas empresas. Sin embargo, s贸lo uno de los factores propuestos, la calidad del producto, es el factor clave que m谩s determina el rendimiento internacional de las empresas BG, y para las empresas exportadoras tradicionales es otro factor distinto, la diferenciaci贸n del producto, lo que m谩s determina el rendimiento internacional. Conclusiones y limitaciones del estudio son presentadas junto con indicaciones para futuras investigaciones
The Conflict between Economic Development and Planetary Ecosystem in the Context of Sustainable Development
The green area of economy is the key of healthy living. It is necessary to convene economic and ecologic framework to establish a market attentive to drastic reduction of emissions damaging our climate and landscapes in rural areas, to the protection of biological diversity of the planet, to stop producing nuclear waste, etc. This paper tries to demonstrate human concern for a waste recycling economy that will provide new jobs, will create economic and social stability and will ensure a healthier and cleaner environment. Green Economy and its support system (planetary ecosystem) won't be in conflict anymore. Green Economy will be able to support economic progress for future.
Direct, Rapid Detection of Pathogens from Urine Samples
The problem of rapidly detecting pathogens directly from clinical samples poses significant analytical challenges. Addressing this issue in relation to urinary tract infections, we propose an effective protocol and related immunomagnetic test kits enabling versatile screening for the presence of pathogenic bacteria in unprocessed urine samples. To achieve this, the components of a typical immunomagnetic separation protocol were optimized towards the sensitive assessment of the aggregates formed out of immunomagnetically tagged target pathogens collected from clinical samples. Specifically, a dedicated immunomagnetic material was developed via the functionalization of standardized, micron-sized magnetic beads with generic antibodies against gram-specific bacterial constituents with mannan binding lectin. As such, we demonstrate efficient procedures for achieving the enhanced, specific, and pathogen-mediated cluster formation of these tailored affinity-coated magnetic beads in complex samples. We further show how cluster analysis, in conjunction with the use of nonspecific, inexpensive fluorescent dye, allows for a straightforward optical assessment of the bacterial load directly from urine samples. The optimized sensing protocol and related kits provide, in less than 60 min, qualitative (positive/negative) information on the bacterial load with 85% specificity and 96% sensitivity, which is appropriate to empower clinical microscopy with a new analytic dimension. The procedure is prone to automation, can be conveniently used in clinical microbiology laboratories and, since it preserves the viability of the captured bacteria, can be interfaced with downstream analyses and antimicrobial susceptibility testing. Moreover, the study emphasizes a suite of practical validation assays that are useful for bringing the tool-box of immunomagnetic materials outside the academic laboratory and into real-life applications
RELEVANCE OF IRRIGATION IN CLEANING THE ROOT CANAL ISTHMUSES
The root canal irrigation going along with instrumentation is a mandatory attitude in current endodontic practice. To increase the evacuation efficacy of dental pulp remnants, dentin debris and bacterial biofilms from root canals and lateral irregularities including canal isthmuses, various procedures of irrigants activation were conceived. If not yet quite satisfactory, among various techniques of irrigant activation currently used the passive ultrasonic activation proved to be more efficient to achieving cleaning and disinfection of root canal isthmuses