Papers by Gabriela Salomon
Revista Clínica de la Escuela de Medicina UCR-HSJD, Dec 1, 2013
Digitalization changes consumer markets rapidly. There is an increasing focus on technological in... more Digitalization changes consumer markets rapidly. There is an increasing focus on technological innovations as well as concepts that improve daily routines and offer support for self-determined living. Various technology companies have recognized this need and developed different types of hard- and software products, so-called Smart Home (SH) technology. In Germany, the SH technology market is still in its infancy. To increase market success, there is a need to understand which factors influence the acceptance of those products. In this study, the acceptance of different SH concepts was examined, using the framework of the Unified Theory of Acceptance and Use of Technology (UTAUT). In a field experiment with 496 participants, acceptance models for two different SH concepts were assessed. The results of the empirical study suggest that the UTAUT is a valid framework for modelling the acceptance of SH technology. Overall success factors for the acceptance are Performance Expectancy, Effort Expectancy, Social Influence, and Facilitating Conditions. While there was no difference in the overall structure of the UTAUT models for the different SH concepts, distinct strengths emerged. Theoretical as well as practical implications of these findings for the marketing of SH products are discussed.
Brazilian Journal of Biology, 2024
Zoological studies, 2017
Luciana Paes de Barros Machado, Natalia Silva Alves, Jaqueline de Oliveira Prestes, Gabriela Ronc... more Luciana Paes de Barros Machado, Natalia Silva Alves, Jaqueline de Oliveira Prestes, Gabriela Ronchi Salomón, Daiane Biegai, Thais Wouk, and Rogério Pincela Mateus (2017) Esterases are a diversified group of isozymes that performs several metabolic functions in Drosophila. In the D. repleta group, this class of enzymes was well described in cactophilic species, existing a lack of studies considering substrate speci city and life cycle expression in the non-cactophilic species. The larvae of cactophilic species of the D. repleta group develop in rotting cacti cladodes, but adults are generalists. Thus, different patterns expression can be found for esterases throughout development. In this work we analyzed esterase pro le and substrate speci city during development, and genetic variability aspects in D. mercatorum pararepleta, a non-cactophilic and generalist species of D. repleta group that was understudied hitherto. Samples of 3rd (F3) and 104th (F104) generations of three D. mercat...
Emerging Infectious Diseases, 2016
Chikungunya virus (CHIKV) was isolated from 12 febrile humans in Yucatan, Mexico, in 2015. One pa... more Chikungunya virus (CHIKV) was isolated from 12 febrile humans in Yucatan, Mexico, in 2015. One patient was coinfected with dengue virus type 1. Two additional CHIKV isolates were obtained from Aedes aegypti mosquitoes collected in the homes of patients. Phylogenetic analysis showed that the CHIKV isolates belong to the Asian lineage. C hikungunya virus (CHIKV; family Togaviridae, genus Alphavirus) is transmitted to humans by Aedes spp. mosquitoes (1,2). The virus is the etiologic agent of chikungunya, an acute febrile illness that is often accompanied by debilitating arthralgia. Historically, CHIKV has been restricted to the Eastern Hemisphere, but in 2013, the virus was reported in the Western Hemisphere during a large outbreak in the Caribbean region. CHIKV spread rapidly to South America, Central America, Mexico, and the United States. The Pan American Health Organization estimated that >1.7 million suspected and laboratory-confirmed cases of chikungunya have occurred in the Western Hemisphere (. org/hq/index.php?option=com_topics& view=readall&cid=5927&Itemid=40931&lang=en). CHIKV was isolated in Mexico from a patient from Jalisco in whom symptoms developed in May 2014 shortly after the patient returned from the Caribbean region (3). The first autochthonous case was reported in October 2014 after CHIKV was isolated from a patient in southeastern state of Chiapas (4). CHIKV-infected Aedes aegypti mosquitoes and additional chikungunya cases were identified in Chiapas later in 2014 (5,6). To our knowledge, no reports of CHIKV in any other states in Mexico have been published. In this study, we tested febrile patients in the state of Yucatan and mosquitoes temporally and spatially associated with these patients for CHIKV infection. We obtained written informed consent from all patients who participated in the study or their legal guardians. The study population was composed of patients who came to hospitals or clinics in Yucatan during August-October 2015 with chikungunya-like illness. These patients were referred to the hematology laboratory at the Hideyo Noguchi Research Center (Merida, Yucatan, Mexico). A patient was considered to have chikungunya-like illness if he or she had fever and arthralgia. Travel history of each study participant was recorded, and any patient who had traveled outside Yucatan in the past 30 days before disease onset was excluded from the study. Blood was collected from the cephalic vein of each patient, dispensed into a vacutainer tube (BD Diagnostics, Franklin Lakes, NJ, USA), and centrifuged. Serum was collected and stored at -80°C. Resting mosquitoes were collected from the homes of each study participant by using Centers for Disease Control and Prevention (Atlanta, GA, USA) backpack-mounted aspirators. Each house was examined once, and collections were made between 9:00 am and noon. All rooms were inspected, particularly dark areas (i.e., underneath furniture, in closets, and in curtains). Backyards were also searched, particularly shaded areas (i.e., pet homes, tool sheds, and underneath vegetation). Mosquitoes were transported alive to the laboratory and identified on chill tables by using morphologic characteristics (7). Female mosquitoes were sorted into pools of <10 and homogenized in phosphate-buffered saline (pH 7.2) by using a mortar and pestle. Male mosquitoes were discarded. An aliquot of each serum sample and mosquito homogenate was filtered and inoculated onto subconfluent monolayers of Ae. albopictus (C6/36) cells in 25-cm 2 flasks. Cells were incubated for 7 days at 28°C. Second and third blind passages were performed in C6/36 and African green monkey kidney (Vero) cells, respectively. Vero cells were incubated for 3-7 days at 37°C in an atmosphere of 5% CO 2 . Cells were scraped from flasks after each passage and centrifuged at 10,000 × g for 10
Revista de investigación clínica; organo del Hospital de Enfermedades de la Nutrición
To determine the prevalence of antibodies type IgG to T. gondii in patients with HIV infection ty... more To determine the prevalence of antibodies type IgG to T. gondii in patients with HIV infection type 1 in the Yucatan peninsula. 95 patients with HIV and 100 blood donors as controls were studied. The search for IgG antibodies to T. gondii was done with a third generation solid-phase enzyme immunoassay. Clinical and demographic data were obtained. The prevalence of antibodies was higher (p = 0.003) in controls (69%, CI95 = 59-78%) than in patients (47%, CI = 36-57%). No relation was found between seroreactivity and the variables evaluated (gender, urban or rural home, age) nor with CD4 T-cell counts and clinical categories. The high prevalence of T. gondii antibodies in both groups suggests that the zoonosis is endemic in the Yucatan peninsula. This justifies the routine determination of antibodies and the use of therapeutic protocols for preventing encephalitis by toxoplasma in HIV patients as a high percentage of them would be at risk of developing it.
Revista da Sociedade Brasileira de Medicina Tropical, 2013
Sylvatic yellow fever is a zoonosis associated mainly with wild animals, especially those in the ... more Sylvatic yellow fever is a zoonosis associated mainly with wild animals, especially those in the genus Alouatta, that act as the source of infection. Once infected, these animals pass the disease on to humans by way of an infected mosquito belonging to the genera Aedes, Haemagogus, or Sabethes. The present study is the fi rst report of a case of yellow fever in non-human primates (NHP) in the State of Paraná, Brazil. After the case was diagnosed, several prophylactic measures were adopted to prevent outbreaks of the disease in humans.
Revista Clínica Escuela de Medicina UCR-HSJD, 2013
Revista Clínica Escuela de Medicina UCR-HSJD, 2013
Salud Pública de México, 2006
Hiperlipidemia e intolerancia a la glucosa en un grupo de pacientes infectados con VIH que recibe... more Hiperlipidemia e intolerancia a la glucosa en un grupo de pacientes infectados con VIH que reciben terapia antirretrovírica hiperactiva.
Archives of Medical Research, 2006
Background. The HTLV-II infection has been reported in patients with HIV infection as often in as... more Background. The HTLV-II infection has been reported in patients with HIV infection as often in asymptomatic as those with acquired immunodeficiency syndrome (AIDS). The aim of this study was to determine the prevalence of HTLV-II infection in a group of patients infected by HIV in our region, as well as determining the risk factors associated with HTLV-II transmission in this group of patients and its impact on the clinical course of HIV infection. Methods. A cross-sectional study was carried out to determine the prevalence of coinfection of HIV-1 and HTLV-II among 192 patients from Yucata ´n, Me ´xico. Serum specimens were tested for HTLV antibodies by an enzyme-linked immunosorbent assay (ELISA) test. Positive results were confirmed and typed by Western blot. Twenty four (12.5%) patients were confirmed with antibodies for HTLV-II, but none had antibodies for HTLV-I. Specific risk factors for HTLV-II transmission were not identified. Results. Candidiasis (42 vs. 12%, p 5 0.0004) and more than two defining entities of AIDS (37 vs. 18%, p 5 0.02) was observed with greater prevalence in the group coinfected. Conclusions. In our study, a higher frequency of candidiasis and a larger number of AIDS-defining pathologies were observed in the co-infected patients, suggesting that co-infection is associated with greater inmunodeficiency.
Digitalen Wandel gestalten, 2019
Digitalization changes consumer markets rapidly. There is an increasing focus on technological in... more Digitalization changes consumer markets rapidly. There is an increasing focus on technological innovations as well as concepts that improve daily routines and offer support for self-determined living. Various technology companies have recognized this need and developed different types of hard- and software products, so-called Smart Home (SH) technology. In Germany, the SH technology market is still in its infancy. To increase market success, there is a need to understand which factors influence the acceptance of those products. In this study, the acceptance of different SH concepts was examined, using the framework of the Unified Theory of Acceptance and Use of Technology (UTAUT). In a field experiment with 496 participants, acceptance models for two different SH concepts were assessed. The results of the empirical study suggest that the UTAUT is a valid framework for modelling the acceptance of SH technology. Overall success factors for the acceptance are Performance Expectancy, Ef...
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Papers by Gabriela Salomon