Revista de Investigaciones de la Universidad Le Cordon Bleu最新文献

{"title":"Mecanismos de defensa en plantas. Proteínas relacionadas con la patogenicidad","authors":"E. Menéndez, J. Navarro, J. López, A. Dalmau","doi":"10.36955/riulcb.2020v7n2.010","DOIUrl":"https://doi.org/10.36955/riulcb.2020v7n2.010","url":null,"abstract":"Desde sus orígenes, las plantas terrestres vasculares han coexistido con una amplia variedad de bacterias y hongos. Con la aparición de los insectos, de igual forma mantuvieron una estrecha relación con estos, tomando un carácter especial con la llegada de las plantas con flores en el período Cretácico temprano. Los diferentes procesos evolutivos han propiciado el desarrollo de una serie de relaciones interespecíficas, algunas de ellas beneficiosas para ambas partes como pudieran ser los variados mecanismos de polinización por medio de insectos en muchas especies de plantas y al mismo tiempo han surgido otros tipos de interacciones con especies capaces de producir enfermedades serias en las diferentes partes de las plantas. Esta presión de selección, unido a la imposibilidad de defensa que ofrece la locomoción, así como la carencia de un sistema de defensa basado en anticuerpos, han sido las principales responsables de la aparición en las plantas de complejos mecanismos de defensa, muchas veces rápidos y eficaces frente a las especies agresoras y otras veces no. La manifestación de las patologías en las plantas depende de complejas interacciones entre el huésped y el patógeno, lo que es un indicador de su evolución conjunta. De aquí la exquisita regulación de los mecanismos de agresión/defensa y la correspondiente selectividad en el reconocimiento de agentes agresores externos, lo que puede explicar la diferente sensibilidad de distintas especies o incluso diferentes variedades dentro de la misma especie. Desde hace un tiempo a la fecha, los investigadores han mostrado mucho interés en ciertas proteínas sintetizadas por la planta cuando es atacada por un microorganismo patógeno. Dado que aparecen en condiciones patológicas, han sido nombradas proteínas relacionadas con la patogenicidad o PR.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132446412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valor de uso medicinal de la flora empleada por el poblador de Victor Larco, Trujillo, La Libertad, Perú","authors":"José Mostacero-León, Kevin Zavaleta Villacorta, Luis Taramona-Ruíz, Anthony J. De La Cruz- Castillo, Efraín Gil Rivero","doi":"10.36955/riulcb.2020v7n2.007","DOIUrl":"https://doi.org/10.36955/riulcb.2020v7n2.007","url":null,"abstract":"La expansión demográfica a nivel mundial, y en el Perú, particularmente trae consigo un sin número de problemas, destacando sobre ellos, los relacionados a la salud; siendo este, un pilar fundamental para el progreso y desarrollo de los pueblos; por ello, la presente investigación se avocó a determinar el valor de uso medicinal de la flora empleada por el poblador del distrito de Víctor Larco, Trujillo, La Libertad, Perú. Se aplicaron un total de 96 entrevistas semi - estructuradas a los pobladores del distrito en mención, a fin de obtener información respecto al nombre común, parte utilizada, tipo de preparación, modo de aplicación, usos medicinales, así como el índice de valor de uso (IVU). Paralelamente se colectó, secó, montó, etiquetó y determinó taxonómicamente los especímenes referidos por la población. Se reportan 50 especies de plantas de uso etnomedicinal en el distrito; distribuidas en 46 géneros y 30 familias, de las que destacan por su número de especies: Asteraceae (7), Lamiaceae (4), Fabaceae (3), Liliaceae (3) y Rutaceae (3). Se concluye que las especies más importantes empleadas en el tratamiento y/o cura de las enfermedades padecidas por el poblador del distrito de Victor Larco, según su Indice de Valor de Uso (IVU) son: Linum usitatissimum L. “linaza”, Cymbopogon citratus (DC.) Stapf “hierba luisa”, Citrus limon (L.) Osbeck “limón”, Aloe vera (L.) Burm.f. “sábila”, Solanum tuberosum L. “papa”, Hordeum vulgare L. “cebada” y Morinda citrifolia L. “noni”.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126231522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inmunoterapia en la prevención y el manejo de la COVID-19: pros y contras de una carrera contra el tiempo","authors":"L. Ríos, J. de León","doi":"10.36955/riulcb.2020v7n1.002","DOIUrl":"https://doi.org/10.36955/riulcb.2020v7n1.002","url":null,"abstract":"As war correspondents, investigators face the challenge of reporting on a daily basis the confrontation with SARS-CoV-2, a virus that has put public health and the socio-economic structure of virtually all countries at collapse edge. Basic rules of hygiene and the social isolation are valuable weapons in the strategic plan of this battle. However, to limit the spread of the virus and manage the disease it produces (COVID-19), it is tactical to understand the dual role of the immune response in infected individuals. On the one hand, the molecular and cellular actors of the immune system are, without a doubt, determining factors in the control of infection and viral replication; on the other hand, its contribution to COVID-19 severity and mortality has also been evidenced. Consequently, the design and implementation of immunotherapy strategies to manipulate the immune system, as well as the identification of immunological biomarkers with prognostic value, are a priority in the prevention and management of this disease. The accumulated experience and also the opportunities offered by genetic engineering in the design of vaccination platforms and other biological therapies, are determining factors. However, the stages and time frames that regularly require the development of these products are not compatible with the rapid control of this pandemic. What risks do we face when a pandemic forces us to modify the development strategy of a therapeutic weapon? This paper addresses the relevance of immunotherapy against SARS-CoV-2 and the challenges of its development in the middle of this war.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127818905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Percepción Sobre Seguridad Ciudadana en el Distrito de Magdalena del Mar, Lima 2018","authors":"Stalein Jackson Támara Tamariz, Yrene Cecilia Uribe Hernández, N. N. T. Grados, Esteban Vicente Horna Bances","doi":"10.36955/riulcb.2019v6n1.010","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.010","url":null,"abstract":"The present study was carried out to determine the factors related to the employability of graduates of the university gastronomy career offered by the Le Cordon Bleu University in Lima, Peru. The population was comprised of 50 professors, 300 students from the last two cycles of the gastronomy career, 216 graduates and 83 potential employers in the city of Lima. The sample was determined at random: 114 students and 27 teachers, and graduates and employers in an unrestricted sample. Surveys were applied in person in the case of teachers and students, and virtual in the case of graduates and employers.It was concluded that the main factors were: 1) The factors under the students' perception are: that you always like to keep harmony with your classmates, believing that you will be a good professional if you get a job in your career, criminal records and judicial, adapting easily to new technological changes, respect for nature, and almost always dependence on the quality of a job has the logistics it provides; 2) The factors under the perception of the graduates were always the acceptance of their responsibility in the face of an error made, having an organized plan to find a job, marital status, knowing how to negotiate and resolve conflicts, demonstrating affection for their peers , and the dependence that the quality of a job has on the skill of the worker; 3) The factors under the teachers' perception were mostly good respect for the environment, management of technological tools, having a leader profile, being supportive and showing management of their emotions in complicated situations; 4) The factors under the employers' perception were mostly good to be ordered in their activities and the performance in the presentations of entrusted work.For the most part employers considered that graduates required training and this training should be in soft skills, more efficient behavior in the area of work, languages, and ability to synthesize and analyze.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121533451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factores relacionados con la empleabilidad de egresados de carrera universitaria de gastronomía en Lima-Perú","authors":"Yrene Cecilia Uribe Hernández, Esteban Vicente Horna Bances, Stalein Jackson Támara Tamariz, F. Paredes","doi":"10.36955/riulcb.2019v6n1.009","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.009","url":null,"abstract":"The objective of the research was to identify the main perception indicators on citizen security in the Magdalena del Mar district. 224 people 18 years of age and older were surveyed. A descriptive statistic was carried out with confidence intervals to estimate the population proportions of the variable under study “perception”. As a relevant conclusion, it was identified that the main cause of citizen insecurity in the Magdalena del Mar district is robbery.The inhabitants ask for more social organization to feel more secure in the district. The inhabitants qualify as regulating the efficiency of the police in the presence of different acts of citizen security. More than half of the respondents think that the situation on citizen security in","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114308538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Obtención de jarabes glucosados a partir de cáscaras de Plátano (Musa paradisiaca L.) mediante hidrólisis enzimática de celulasas","authors":"Alicia Decheco Egúsquiza","doi":"10.36955/riulcb.2019v6n1.005","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.005","url":null,"abstract":"The objective was to determine the effect of the application of the fungal cellulase enzyme on the silk banana peels (Musa paradisiaca) to obtain glucosed syrup. The enzymatic hydrolysis of banana shells at 30% (w / v) was studied at a constant temperature of 50 ° C. The independent variables to be controlled were the concentration of the fungal cellulase enzyme (0.5%, 1% and 1.5% w / v) and the hydrolysis time (18, 24 and 30 hours). The dependent variables were the percentage of Reducer Sugar and the percentage of Dextrose Equivalent (D.E.) of the enzymatically hydrolysed samples. The experimental design was completely randomized with factorial model 32. Glucosed syrups were obtained from silk plantain hulls by the enzymatic hydrolysis of the fungal cellulase. The highest percentages of Reducer Sugar and Dextrose Equivalent were presented in the Cellulase Concentration at 1.5% (w / v) during a hydrolysis time of 30 hours with average values ​​of 15.5% of reducing sugar percentage and 30.9% of percentage of Dextrose Equivalent. In the enzymatic hydrolysis with fungal cellulase at 1.5% (w / v) and 30 hours a higher value-added product was obtained, the operating conditions and the process steps were defined that should be adapted for the production of glucosed syrup from of banana peels (Musa paradisiaca).","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125854826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluación comparativa de los Museo de sitio de Pachacamac, Puruchuco y Huaca Pucllana, según la percepción de los estudiantes de turismo en Lima Metropolitana","authors":"Florisa García Chumioque, P. Ramos","doi":"10.36955/riulcb.2019v6n1.004","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.004","url":null,"abstract":"In this research, a comparative evaluation was carried out regarding the mentioned museums according to the perception of tourism students in Metropolitan Lima.The objective of the present investigation is “To prepare a comparative evaluation of the museums of Pachacamac, Puruchuco and Huaca Pucllana sites according to the perception of the visitor resident in the city of Lima”. To carry out this research work, several discussion sessions were held among the researchers where the situational reality of the Site Museums in the city of Lima was analyzed, we concluded that the most appropriate thing would be to develop a comparative evaluation of the main Site museums that has Metropolitan Lima.Once the research topic was chosen, the search and compilation of pertinent information was carried out through the internet, repositories, specialized magazines, articles, among other sources.As part of the results, the sample consisted of male and female participants. It was also made up of age groups that range between “0 - 20”, “21 - 40”, “41 - 60” years of age. The sample surveyed belong to the University Private A, University Private B, the National University A, the Institute A, the Institute B, the Institute C. On the other hand the museum that has been showing improvements over the years, is the Pachacamac Site Museum. Regarding the evaluation of the “Design of the Permanent Exhibition”, the Pachacamac and Puruchuco Site Museums obtained the (Very Satisfied) qualification and the Huaca Pucllana Site Museum obtained the (Satisfied) qualification.It is concluded that museums have a vital importance in the training of future professionals in the tourism sector, thus guaranteeing the sense of belonging on the part of all Peruvians and allowing the elaboration of a curricular mesh according to the Peruvian socio-cultural context within globalization.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128439275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Encapsulación de la pulpa camu camu (Myciaria dubia) y deshidratado de las cápsulas","authors":"V. Calderón, Óscar O Osso","doi":"10.36955/riulcb.2019v6n1.003","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.003","url":null,"abstract":"The objective of this work was to study the formation of the pulp of camu camu in a matrix of calcium alginate encapsulation using the drip method by immersion of alginate solution of sodium, followed by a drying operation by dragging the process of external Gelation occurs with the calcium ion diffusion from a source that surrounds the hydrocolloid towards neutral pH alginate solution. Gel formation begins in the interface and moves inside to the surface is saturated with calcium ions, so that from the salt of alginate sodium ion is displaced by the Divalent cation solubilized in water. This interacts with the G- blocks of different polymer molecules, linking them together. Although, the most widely used source of calcium has been CaCl2 due to its higher percentage of available calcium, there are other salts employed less frequently such as acetate monohydrate and calcium lactate. \u0000Pulp of camu camu refined and at pH 3.3 neutralized with baking soda to pH 4.6 and using the direct gelling with sodium alginate in a proportion of 1g / 100 g and applying the drip technique in solution of 1g calcium chloride / 100g. And after several trials was the technique to produce areas of camu camu which were sifted and dried at a temperature of 60 °C resulting in 7, 40 g. / 100 g of pulp camu camu.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"2003 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127329143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Actividad antimicrobiana del extracto hidroalcohólico de Piper angustifolium (Piperaceae) sobre Proteus mirabilis","authors":"Gina Zavaleta-Espejo, Cristina Zavaleta-Castro, J. Saldaña-Jiménez, Anthony Aguilar-Sánchez","doi":"10.36955/riulcb.2019v6n1.006","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.006","url":null,"abstract":"The aim of the present investigation was to determine the antimicrobial activity of different concentrations of hydroalcoholic extract of Piper angustifolium “matico” leaves on the growth of Proteus mirabilis under laboratory conditions. To obtain the hydroalcoholic extract of P. angustifolium leaves, Soxhlet equipment with 95% ethyl alcohol was used; dilutions were made with Tween 80 (10, 15, 20, 25 and 30 mg / ml). To evaluate the microbial activity of the extract, the Kirby-Bauer method with 0.7 mm Watman No. 4 paper discs was used, using five discs for each of the concentration, using ciprofloxacin as a positive control and a negative control (Tween 80), the plates were incubated at 37 ° C for 24 hours, after which time the diameters (mm) of the inhibition zones were measured. The highest inhibition halo (18.7 mm) was obtained at the highest concentration, finding a directly proportional effect between the concentration of the extract and the antimicrobial activity. The results showed significant differences between the different concentrations used.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"166 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125971833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efecto del silicio orgánico en el rendimiento de maracuyá (Passiflora edulis), cultivada en Somate- Sullana","authors":"R. P. Castillo, Miguel Ángel Galecio Julca","doi":"10.36955/riulcb.2019v6n1.002","DOIUrl":"https://doi.org/10.36955/riulcb.2019v6n1.002","url":null,"abstract":"The investigation was carried out in a passion fruit plantation (Passiflora edulis) installed in the village of Somate Alto - Sullana; previously the soil analysis was performed. The objective of this study was to evaluate the effect of organic silicon on yield, quality and economic profitability, for which the Random Complete Blocks design was used. The experimental unit consisted of 12 plants, evaluating the 4 plants for the yield parameters and 2 for the quality parameters. The treatments were: T0 (control without silicon), T1 T2, T3 and T4 with 25, 50, 75 and 100 kg.ha-1 of organic silicon respectively. The evaluations were made until the fifth harvest of fruits with commercial maturity (first three months of harvest); The conclusions were: - The best treatment for yield was T0 (control) with 10589,87 Kg.ha-1 of fruit, however, T0 behaved statistically equal to the rest of treatments in the juice pH parameter and only exceeded to T2 (50 kg.ha-1 of silicon) in the volume of juice. - Regarding total soluble solids, T0 was statistically exceeded by the rest of treatments. - There were no significant differences between treatments T3 (75 kg.ha-1 of silicon), T4 (100 kg.ha-1 of silicon) and T0 (control) in fruit weight and juice volume. - The Control Treatment (T0), had the highest economic profitability with a benefit / cost ratio of 1,41.","PeriodicalId":308355,"journal":{"name":"Revista de Investigaciones de la Universidad Le Cordon Bleu","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133620953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}