27 research outputs found

    Explaining and predicting the single channel versus multi-channel consumer: the case of an embarrassing product

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    The fundamental purpose of this thesis was to determine how effective is the theory of planned behaviour (TPB) to predict and explain shopping for embarrassing products in single and multi-channel. This is important because multi-channel consumers buy more, the question is why (Neslin, Grewal et al. 2006). The question was answered by comparing consumer behaviour in three different channels: drugstore, internet and multi-channel. The Theory of Planned Behaviour (TPB) has been successful to predict intentions for a wide variety of products and behaviours. However, little is known about how effective it is when the behaviour under study is influenced by the emotion of embarrassment. Similarly, the TPB is parsimonious and has a good predictive power; nevertheless, this thesis identified that the TPB could be more effective if it considered: (1) the role of positive and negative emotions (2) other determinants of choice like personality and demographics (3) variables that are useful to make marketing decisions like the synergistic effect of brands, retailers and channels (4) variables that explain consumer response like approach and avoidance. To provide a comprehensive theoretical framework that is able to understand single and multi-channel, this thesis integrated the TPB within the Stimulus-Organism-Response (S-O-R) framework. To evaluate the proposed model, the study used a context and target product that resonated with the theory: the purchase of Regaine (a hair loss product that is embarrassing to buy) in Boots (a well-known UK. multi-channel drugstore). The embarrassing nature of Regaine created differences in the importance that variables play in each channel. The results were analysed using partial least squares structural equation modelling (PLS-SEM) and the three shopping environments were compared using multi-group analysis (MGA). The effectiveness of the TPB was improved. The variance explained (R² to intention) was 73 percent for the drugstore, 67 percent for the internet and 54 percent for multi-channel. However, subjective norm (SN) was the only factor that achieved significance for the three shopping environments. Personality and demographic factors had a low but significant moderating effect on intention. This thesis built on a series of contributions in different areas, such as the TPB, attitudes, subjective norm, perceived behavioural control, embarrassing products, multi-channel, marketing, emotions, personality and demographics. Future research should expand this thesis to other embarrassing products, industries and social media settings

    Temperature management during cytoreductive surgery with hyperthermic intraperitoneal chemotherapy

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    In addition to attaining complete or near complete cytoreduction, the instillation of select heated chemotherapeutic agents into the abdominal cavity has offered a chance for cure or longer survival inpatients with peritoneal surface malignancies. While the heating of chemotherapeutic agents enhances cytotoxicity, the resulting systemic hyperthermia has been associated with an increased risk of severe hyperthermia and its associated complications. Factors that have been associated with an increased risk of severe hyperthermia include intraoperative blood transfusions and longer perfusion duration. However, the development of severe hyperthermia still remains largely unpredictable. Thus, at several institutions, cooling protocols are employed during cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC). Cooling protocols for CRS-HIPEC are not standardized and may be associated with episodes of severe hyperthermia or alternatively hypothermia. In theory, excessive cooling could result in a decreased effectiveness of the intraperitoneal chemotherapeutic agents. This presumption has been supported by a recent study of 214 adults undergoing CRS-HIPEC, where failure to attain a temperature of 38° C at the end of chemo-perfusion was associated with worse survival. Although not statistically significant, failure to maintain a temperature of 38° C for at least 30 minutes was associated with worse survival. Although studies are limited in this regard, the importance of maintaining a steady state of temperature during the hyperthermic phase of intraperitoneal chemotherapy administration cannot be disregarded. The following article describes the processes and physiological mechanisms responsible for hyperthermia during CRS-HIPEC. The challenges associated with temperature management during CRS-HIPEC and methods to avoid severe hypothermia and hyperthermia are also described

    Hypoglossal nerve monitoring, a potential application of intraoperative nerve monitoring in head and neck surgery

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    ABSTARCT: Intraoperative nerve monitoring (IONM) has many applications in different surgical fields. In head and neck surgery, IONM has been used to perform surgery of the parotid, thyroid and parathyroid glands, preserving the facial and recurrent nerves. However, hypoglossal nerve euromonitoring has not been addressed with such relevance

    Recommendations of the Colombian association of coloproctology for management of colorectal cancer during the COVID-19 pandemic

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    La pandemia por el coronavirus 2 del síndrome respiratorio agudo severo (SARS-CoV-2), (coronavirus disease-19 [COVID-19]), ha alterado por completo toda la realidad mundial con repercusiones económicas, sociales y grandes compromisos de los sistemas de salud. La enfermedad ha afectado a todos los países en los 5 continentes; y en nuestro país, desde el primer caso, se han venido tomando medidas para prepararnos mejor ante esta crisis. Pese a que se trata de un virus respiratorio, se ha documentado su presencia en diferentes tejidos y órganos de los seres humanos. Aunque la presentación clínica en su mayoría tiene síntomas leves, se sabe que un porcentaje importante tiene manifestaciones graves que pueden llevar a complicaciones graves y la muerte. El cáncer colorrectal es un tumor prevalente en nuestra población y obliga a tener una mejor preparación para tratarlo durante este período. Desde la Asociación Colombiana de Coloproctología, basados en los diferentes reportes de la literatura, en las recomendaciones de las diferentes asociaciones internacionales y en nuestra propia experiencia, se realiza una revisión del cáncer colorrectal durante la pandemia de COVID-19 y se comparten algunas recomendaciones para el manejo de los pacientes con esta patología revisando las diferentes opciones de manejo según la presentación de la enfermedad.The economic and social repercussions and the enormous commitment required of health care systems by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic (coronavirus disease [COVID-19]) has completely altered world reality. The disease has affected all countries on all five continents. In Colombia, from diagnosis of the very first case, measures have been taken to better prepare ourselves for this crisis. Although it is a respiratory virus, its presence in various human tissues and organs has been documented. Despite the fact that its clinical presentation is most often in the form of mild symptoms, a significant percentage of those infected have severe manifestations that can lead to serious complications and death. Colorectal cancer is a prevalent tumor in our population, and this pandemic forces to prepare ourselves better to treat it during this period. The Colombian Coloproctology Association has reviewed reports in the literature and recommendations of various international associations and on our own experience with colorectal cancer during the COVID-19 pandemic. We present our recommendations for management of patients with this pathology and review management options according to disease presentation

    Efficacy of high-intensity, low-volume interval training compared to continuous aerobic training on insulin resistance, skeletal muscle structure and function in adults with metabolic syndrome: study protocol for a randomized controlled clinical trial (Intraining-MET)

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    ABSTRACT: Evidence of the efficacy of high-intensity, low-volume interval training (HIIT-low volume) in treating insulin resistance (IR) in patients with metabolic disorders is contradictory. In addition, it is unknown whether this effect is mediated through muscle endocrine function, which in turn depends on muscle mass and fiber type composition. Our aims were to assess the efficacy of HIIT-low volume compared to continuous aerobic exercise (CAE) in treating IR in adults with metabolic syndrome (MS) and to establish whether musclin, apelin, muscle mass and muscle composition are mediators of the effect. Methods: This is a controlled, randomized, clinical trial using the minimization method, with blinding of those who will evaluate the outcomes and two parallel groups for the purpose of showing superiority. Sixty patients with MS and IR with ages between 40 and 60 years will be included. A clinical evaluation will be carried out, along with laboratory tests to evaluate IR (homeostatic model assessment (HOMA)), muscle endocrine function (serum levels of musclin and apelin), thigh muscle mass (by dual energy x-ray absorptiometry (DXA) and thigh muscle composition (by carnosine measurement with proton magnetic resonance spectroscopy (H–MRS)), before and after 12 weeks of a treadmill exercise program three times a week. Participants assigned to the intervention (n = 30) will receive HIIT-low volume in 22-min sessions that will include six intervals at a load of 90% of maximum oxygen consumption (VO2 max) for 1 min followed by 2 min at 50% of VO2 max. The control group (n = 30) will receive CAE at an intensity of 60% of VO2 max for 36 min. A theoretical model based on structural equations will be proposed to estimate the total, direct and indirect effects of training on IR and the proportion explained by the mediators. Discussion: Compared with CAE, HIIT-low volume can be effective and efficient at improving physical capacity and decreasing cardiovascular risk factors, such as IR, in patients with metabolic disorders. Studies that evaluate mediating variables of the effect of HIIT-low volume on IR, such as endocrine function and skeletal muscle structure, are necessary to understand the role of skeletal muscle in the pathophysiology of MS and their regulation by exercise. Trial registration: NCT03087721. High-intensity Interval, Low Volume Training in Metabolic Syndrome (Intraining-MET). Registered on 22 March 2017, retrospectively registered

    Comparación plan de estudios programa administración de empresas Uniminuto y Columbus State University

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    Realizar comparaciones entre los modelos educativos enfocándonos en las asignaturas que se enseñan a los estudiantes de la Corporación Universitaria Minuto de Dios y Columbus State University (CSU), es un proceso que se inicia con el conocimiento de la malla curricular de las dos Universidades para intentar así, identificar cuáles serían las asignaturas con mayor similitud en Columbus, sin embargo los enfoques que se manejan son diferentes, teniendo en cuenta que la demanda y población a la cual se dirigen, por razones económicas, condiciones sociales y características de los estudiantes, como también el mercado laboral que ofrece el entorno

    Comparación plan de estudios programa administración de empresas Uniminuto y Columbus State University

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    Realizar comparaciones entre los modelos educativos enfocándonos en las asignaturas que se enseñan a los estudiantes de la Corporación Universitaria Minuto de Dios y Columbus State University (CSU), es un proceso que se inicia con el conocimiento de la malla curricular de las dos Universidades para intentar así, identificar cuáles serían las asignaturas con mayor similitud en Columbus, sin embargo los enfoques que se manejan son diferentes, teniendo en cuenta que la demanda y población a la cual se dirigen, por razones económicas, condiciones sociales y características de los estudiantes, como también el mercado laboral que ofrece el entorno

    Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTIC‐HF: baseline characteristics and comparison with contemporary clinical trials

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    Aims: The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTIC‐HF) trial. Here we describe the baseline characteristics of participants in GALACTIC‐HF and how these compare with other contemporary trials. Methods and Results: Adults with established HFrEF, New York Heart Association functional class (NYHA) ≥ II, EF ≤35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokinetic‐guided dosing: 25, 37.5 or 50 mg bid). 8256 patients [male (79%), non‐white (22%), mean age 65 years] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NT‐proBNP 1971 pg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTIC‐HF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressure < 100 mmHg (n = 1127), estimated glomerular filtration rate < 30 mL/min/1.73 m2 (n = 528), and treated with sacubitril‐valsartan at baseline (n = 1594). Conclusions: GALACTIC‐HF enrolled a well‐treated, high‐risk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation

    Las estrategias de marketing y la competitividad: evidencia de las PYMES colombianas

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    This study evaluates how three distinct marketing strategies (i.e., marketing communication, marketing innovation, and marketing uniqueness) impact the competitiveness level of Colombian SMEs. We use a unique primary dataset drawn from the Global Competitiveness Project that includes information for 176 Colombian SMEs during 2019. We employ a regression model to test the proposed hypotheses highlighting the relevance of marketing innovation, uniqueness, and communication for SMEs' competitiveness. The findings reveal that Colombian SMEs are frequent users of marketing strategies. Results show that larger SMEs that use marketing strategies are more competitive than smaller ones. It was also found that strategic emphasis, which implies that SMEs work with one of the evaluated strategies, contributes to competitiveness. However, managers should consider the synergistic effects of using more than one strategy. The relevance of this study is to present a model that shows how larger SMEs can capitalize on different marketing strategies to consolidate their competitiveness level in the Colombian context.Este estudio evalúa cómo tres estrategias de marketing distintas (comunicación de marketing, innovación de marketing y singularidad de marketing) impactan el nivel de competitividad de las PYMES colombianas. Para ello, utilizamos un conjunto de datos primarios únicos extraídos del Proyecto de Competitividad Global (GCP: www. sme-gcp.org) que incluye información sobre 176 PYMES colombianas durante el 2019. Empleamos un modelo de regresión para probar las hipótesis propuestas para explicar la relevancia de la innovación en marketing, la singularidad y la comunicación en la competitividad de las PYMES colombianas. Contrariamente a lo esperado, las PYMES colombianas son usuarias frecuentes de estrategias de marketing. Los resultados evidenciaron que las PYMES de mayor tamaño que utilizan estrategias de marketing son más competitivas que las más pequeñas. Un directivo de una PYME que solo desarrolle una de las estrategias evaluadas puede contribuir a ganar competitividad en una de las estrategias evaluadas puede contribuir a ganar competitividad. Sin embargo, los gerentes deben considerar los efectos sinérgicos de usar más de una estrategia. La relevancia de este estudio se origina en el reconocimiento de que las PYMES de mayor tamaño tienen ventaja al utilizar estrategias de innovación para consolidarse en el contexto colombiano
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