Resultados de búsqueda - (perico OR (cerrados OR period))*

Editor for creating and applying computerise surveys por López Walle, Jeanette M., Blanco Vega, Humberto, Ornelas Contreras, Martha, Tristán Rodríguez, José Leandro, Cocca, Armando, Mayorga Vega, Daniel, Viciana Ramírez, Jesús

“…Further, it allows researchers to know the latency period from the answer to each and every item. The prospects about new versions of the system stress on: extending the number of measured topics; creating automatic corrections systems; managing data via internet; and selecting the most valid items to measure each matter or specific groups of persons.…”
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Control biológico en la fase de competencia y recuperación en un triatleta por Pérez, Delia, Rangel Colmenero, Blanca Rocío, Hernández Cruz, Germán, Aguirre Zuazua, Hugo, Chávez, Estrella

“…In the present study biomarkers such immune response, heart rate variability (HRV), creatine kinase (CK), lactate and urea were measured to describe the behavior in a competition and during the recovery period. The results obtained during the evaluation provide enough information to use them as a custom control of physical activity.…”
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Multiperiod synchronization bus timetabling por Ibarra Rojas, Omar Jorge, Lopez Irarragorri, Fernando, Ríos Solís, Yasmín Agueda

“…Most of the public transport networks consider planning periods identical for all lines. In this study we drop this strong assumption by introducing specific periods for each line, which is more realistic. …”
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Avances en el Cultivo del Pescado Blanco de Pátzcuaro Chirostoma estor estor por Martínez Palacios, C.A., Ríos-Durán, M.G., Campos Mendoza, A., Toledo Cuevas, M., L. G., Ross

“…The present study deals with: 1) thedescription of the anatomical structures of the mouth under electronic microscopy, showingthat this species is a zooplanktophagous fish; 2) the main embryological and larvaldevelopment stages, showing a small egg and a short eclosion period, typical of marinefishes; 3) the temperature and salinity culture conditions and methods that our group haveimplemented for the artificial fertilization, incubation of eggs and thorough life cycleculture; 4) first feeding with marine rotifers and Artemia nauplii, weaning after 25 dayswith artificial diets; 5) total proteolytic as well as some specific proteolytic enzymes wereevaluated in C. estor estor larvae. …”
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Broodstock Nutrition: Enhancement of Egg Quality in Channel Catfish por Quintero, Herbert E., Davis, D. Allen

“…Increasing the feeding frequency from 3 to 6 times per week negatively affected spawning in one of the strains, but did not affect egg production. Age and period of spawning affected reproductive performance. …”
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Gene Expression in Rainbow Trout (Oncorhynchus mykiss), Nile Tilapia (Oreochromis niloticus) and White Sturgeon (Acipenser transmontanus) Erythrocytes under Differing in vitro Glyc... por Powell, Madison, Kennedy, Tracy, Faler, Joyce, Hardy, Ronald

“…Rainbow trout (Oncorhynchus mykiss), Nile tilapia (Oreochromis niloticus) and white sturgeon (Acipenser transmontanus) blood cells were maintained in vitro over a 24 h period under different glycemic conditions to compare cellular response to prolonged hyperglycemia. …”
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Ecología del paisaje de la región hidrológica prioritaria no. 53 Río San Juan y Río Pesquería (CONABIO), Nuevo León, México. por Torres Barajas, Manuel

“…The landscape structure and configuration of the RHP has been transformed, undergoing spatial and temporal changes, overall, during the 1976-2011 time period, the patches size is more irregular, in the overall 1976–2011 time period, the patch number (PN) decreased by 30 %, the significant decreased occurred between 1993 and 2000. …”
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Ecología del paisaje de la región hidrológica prioritaria no. 53 Río San Juan y Río Pesquería (CONABIO), Nuevo León, México. por Torres Barajas, Manuel

“…The landscape structure and configuration of the RHP has been transformed, undergoing spatial and temporal changes, overall, during the 1976-2011 time period, the patches size is more irregular, in the overall 1976–2011 time period, the patch number (PN) decreased by 30 %, the significant decreased occurred between 1993 and 2000. …”
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Automatic Frequency Identification under Sample Loss in Sinusoidal Pulse Width Modulation Signals Using an Iterative Autocorrelation Algorithm por Said, Alejandro, Davizón, Yasser, Espino Román, Piero, Rodríguez Said, Roberto, Hernández Santos, Carlos

“…Taking advantage of the symmetry properties of the autocorrelation, the algorithm is capable of estimating half of the period of the fundamental frequency; thus, allowing one to estimate the necessary number of samples to produce an accurate Fourier spectrum. …”
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Seroprevalence of T. Cruzi infection in blood donors and chagas cardiomyopathy in patients from the coal mining region of coahuila, Mexico por Martínez Tovar, José Gerardo, Rebollar Téllez, Eduardo Alfonso, Fernández Salas, Ildefonso

“…Design and Setting: Epidemiological, exploratory and prospective study in a general hospital during the period January to June 2011. Methods: We performed laboratory tests ELISA and indirect hemagglutination in three groups of individuals: 1) asymptomatic voluntary blood donors, 2) patients hospitalized in the cardiology department and 3) patients with dilated cardiomyopathy. …”
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Dataset of the adapted COVID stress scales for healthcare professionals of the northeast region of Mexico por Padilla Rivas, Gerardo Raymundo, Delgado Gallegos, Juan Luis, Montemayor Garza, Rene de Jesús, Franco Villareal, Héctor, Cosió León, María de los Ángeles, Avilés Rodríguez, Gener, Zúñiga Violante, Erika, Romo Cárdenas, Gerardo Salvador, Islas, José Francisco

“…Using an online platform to obtain data, a survey was developed and distributed through electronic means during a 6- week period covering July and August 2020, considered one of the periods with the highest reported COVID cases in Mexico. …”
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Suitable Conditions for the Use of Vanadium Nitride as an Electrode for Electrochemical Capacitor por Morel, Alban, Borjon Piron, Yann, Lucio Porto, Raúl, Brousse, Thierry, Bélanger, Daniel

“…After a 24 hours stabilization period, the prepared VN thin film showed an initial capacitance of 19 mF.cm−2 and a capacity retention of 96% after 10000 cycles. …”
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Does trade liberalization help woman? The case of Mexico in the 1990s por Aguayo Téllez, Ernesto, Airola, Jim, Juhn, Chinhui

“…We find that women’s relative wage increased, particularly during the period of liberalization. Both between and within-industry shifts also favored female workers. …”
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Income divergence between mexican states in the 1990s: the role of skill premium por Aguayo Téllez, Ernesto

“…During the period 1940–1985 the variance of average incomes across Mexican states fell by 60 percent. …”
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Conditional betas and Market re-definition: Revisiting the capital asset pricing model with Mexican data por Treviño Villarreal, María de Lourdes

“…This paper examined the time-series cross-section relation between conditional betas and stock returns using monthly data for Mexico for the period January 1999 to August 2008. The portfolio-level analysis and regressions indicated a positive relation between conditional betas and the expected returns. …”
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Creación de valor en las empresas a través de las prácticas de la Responsabilidad Social Empresarial por Romero-Tamez, María Monserrat, Treviño-Saldivar, Eduardo, Saldivar Del Angel, Roxana

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Estudio de la dinámica hidrogeológica de la Laguna de Labradores, Galeana, Nuevo León. por Cuevas Castellanos, Paulina

“…This event occurred at the end of a period of severe drought in all state of Nuevo León. …”
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Impacto de la sequía en el acuífero del centro de producción agropecuaria (CPA)/UANL, Linares, N.L. por Martínez Solís, Angélica María

“…This investigation attempts to evaluate the effects of the fractures on the aquifer, as a consequence of a recent period of dryness, and from this understand whether some changes occurred, specially in the direction of the movement of the subsurface or deeper water what will allow a better administration for necessary activities including people of the (FCF-UANL). …”
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Caracterización clonal de aislamientos clínicos de Stenotrophomonas maltophilia productores de biopelícula por Montoya Hinojosa, Edeer Iván

“…The isolates were collected in a period from January 2007 to December 2017 in two third-level hospitals in Mexico, with a total of 235 isolates, 47% from Jalisco and 53% from Monterrey. …”
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Estudio de la dinámica hidrogeológica de la Laguna de Labradores, Galeana, Nuevo León. por Cuevas Castellanos, Paulina

“…This event occurred at the end of a period of severe drought in all state of Nuevo León. …”
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